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- Log ----------------------------------------------------------------- commit c09758302b419c13246f41b9b0be9dfe1e0b1d14 Author: Arne Fitzenreiter arne_f@ipfire.org Date: Sat Feb 23 15:56:21 2019 +0100

kernel: update to 4.14.103

Signed-off-by: Arne Fitzenreiter arne_f@ipfire.org

-----------------------------------------------------------------------

Summary of changes: lfs/linux | 9 +-- src/patches/linux/linux-cve-2019-8912.patch | 118 ---------------------------- 2 files changed, 3 insertions(+), 124 deletions(-) delete mode 100644 src/patches/linux/linux-cve-2019-8912.patch

Difference in files: diff --git a/lfs/linux b/lfs/linux index 54296b308..8b309c0f7 100644 --- a/lfs/linux +++ b/lfs/linux @@ -24,8 +24,8 @@

include Config

-VER = 4.14.102 -ARM_PATCHES = 4.14.102-ipfire0 +VER = 4.14.103 +ARM_PATCHES = 4.14.103-ipfire0

THISAPP = linux-$(VER) DL_FILE = linux-$(VER).tar.xz @@ -82,7 +82,7 @@ objects =$(DL_FILE) \ $(DL_FILE) = $(URL_IPFIRE)/$(DL_FILE) arm-multi-patches-$(ARM_PATCHES).patch.xz = $(URL_IPFIRE)/arm-multi-patches-$(ARM_PATCHES).patch.xz

-$(DL_FILE)_MD5 = 8e45ababe805901139c58a0af3711f90 +$(DL_FILE)_MD5 = 7092950433828a3dbe62a981decfd4f8 arm-multi-patches-$(ARM_PATCHES).patch.xz_MD5 = 1cda52264dad96fcba65bd335fbbfa95

install : $(TARGET) @@ -146,9 +146,6 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) # Fix uevent PHYSDEVDRIVER cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux/linux-2.6.32.27_mcs7830-fix-driver-name.patch

- # Fix cve 2019-8912 - cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux/linux-cve-2019-8912.patch - ifeq "$(KCFG)" "-kirkwood" cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux/linux-4.14.40-kirkwood-dtb.patch endif diff --git a/src/patches/linux/linux-cve-2019-8912.patch b/src/patches/linux/linux-cve-2019-8912.patch deleted file mode 100644 index 6f63ea17b..000000000 --- a/src/patches/linux/linux-cve-2019-8912.patch +++ /dev/null @@ -1,118 +0,0 @@ -From 9060cb719e61b685ec0102574e10337fa5f445ea Mon Sep 17 00:00:00 2001 -From: Mao Wenan maowenan@huawei.com -Date: Mon, 18 Feb 2019 10:44:44 +0800 -Subject: [PATCH] net: crypto set sk to NULL when af_alg_release. - -KASAN has found use-after-free in sockfs_setattr. -The existed commit 6d8c50dcb029 ("socket: close race condition between sock_close() -and sockfs_setattr()") is to fix this simillar issue, but it seems to ignore -that crypto module forgets to set the sk to NULL after af_alg_release. - -KASAN report details as below: -BUG: KASAN: use-after-free in sockfs_setattr+0x120/0x150 -Write of size 4 at addr ffff88837b956128 by task syz-executor0/4186 - -CPU: 2 PID: 4186 Comm: syz-executor0 Not tainted xxx + #1 -Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS -1.10.2-1ubuntu1 04/01/2014 -Call Trace: - dump_stack+0xca/0x13e - print_address_description+0x79/0x330 - ? vprintk_func+0x5e/0xf0 - kasan_report+0x18a/0x2e0 - ? sockfs_setattr+0x120/0x150 - sockfs_setattr+0x120/0x150 - ? sock_register+0x2d0/0x2d0 - notify_change+0x90c/0xd40 - ? chown_common+0x2ef/0x510 - chown_common+0x2ef/0x510 - ? chmod_common+0x3b0/0x3b0 - ? __lock_is_held+0xbc/0x160 - ? __sb_start_write+0x13d/0x2b0 - ? __mnt_want_write+0x19a/0x250 - do_fchownat+0x15c/0x190 - ? __ia32_sys_chmod+0x80/0x80 - ? trace_hardirqs_on_thunk+0x1a/0x1c - __x64_sys_fchownat+0xbf/0x160 - ? lockdep_hardirqs_on+0x39a/0x5e0 - do_syscall_64+0xc8/0x580 - entry_SYSCALL_64_after_hwframe+0x49/0xbe -RIP: 0033:0x462589 -Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 -f7 48 89 d6 48 89 -ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 -48 c7 c1 bc ff ff -ff f7 d8 64 89 01 48 -RSP: 002b:00007fb4b2c83c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000104 -RAX: ffffffffffffffda RBX: 000000000072bfa0 RCX: 0000000000462589 -RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000007 -RBP: 0000000000000005 R08: 0000000000001000 R09: 0000000000000000 -R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb4b2c846bc -R13: 00000000004bc733 R14: 00000000006f5138 R15: 00000000ffffffff - -Allocated by task 4185: - kasan_kmalloc+0xa0/0xd0 - __kmalloc+0x14a/0x350 - sk_prot_alloc+0xf6/0x290 - sk_alloc+0x3d/0xc00 - af_alg_accept+0x9e/0x670 - hash_accept+0x4a3/0x650 - __sys_accept4+0x306/0x5c0 - __x64_sys_accept4+0x98/0x100 - do_syscall_64+0xc8/0x580 - entry_SYSCALL_64_after_hwframe+0x49/0xbe - -Freed by task 4184: - __kasan_slab_free+0x12e/0x180 - kfree+0xeb/0x2f0 - __sk_destruct+0x4e6/0x6a0 - sk_destruct+0x48/0x70 - __sk_free+0xa9/0x270 - sk_free+0x2a/0x30 - af_alg_release+0x5c/0x70 - __sock_release+0xd3/0x280 - sock_close+0x1a/0x20 - __fput+0x27f/0x7f0 - task_work_run+0x136/0x1b0 - exit_to_usermode_loop+0x1a7/0x1d0 - do_syscall_64+0x461/0x580 - entry_SYSCALL_64_after_hwframe+0x49/0xbe - -Syzkaller reproducer: -r0 = perf_event_open(&(0x7f0000000000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, -0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, -0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, -0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, -0xffffffffffffffff, 0x0) -r1 = socket$alg(0x26, 0x5, 0x0) -getrusage(0x0, 0x0) -bind(r1, &(0x7f00000001c0)=@alg={0x26, 'hash\x00', 0x0, 0x0, -'sha256-ssse3\x00'}, 0x80) -r2 = accept(r1, 0x0, 0x0) -r3 = accept4$unix(r2, 0x0, 0x0, 0x0) -r4 = dup3(r3, r0, 0x0) -fchownat(r4, &(0x7f00000000c0)='\x00', 0x0, 0x0, 0x1000) - -Fixes: 6d8c50dcb029 ("socket: close race condition between sock_close() and sockfs_setattr()") -Signed-off-by: Mao Wenan maowenan@huawei.com -Signed-off-by: David S. Miller davem@davemloft.net ---- - crypto/af_alg.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - -diff --git a/crypto/af_alg.c b/crypto/af_alg.c -index 17eb09d222ff4..ec78a04eb136e 100644 ---- a/crypto/af_alg.c -+++ b/crypto/af_alg.c -@@ -122,8 +122,10 @@ static void alg_do_release(const struct af_alg_type *type, void *private) - - int af_alg_release(struct socket *sock) - { -- if (sock->sk) -+ if (sock->sk) { - sock_put(sock->sk); -+ sock->sk = NULL; -+ } - return 0; - } - EXPORT_SYMBOL_GPL(af_alg_release);

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