IPFire-SCM November 2011

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[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, next, updated. 89f3d66c24acadc30c72c97fc8012e9f995e7eee
by git＠ipfire.org 27 Nov '11

27 Nov '11

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, next has been updated via 89f3d66c24acadc30c72c97fc8012e9f995e7eee (commit) via 429dc4a2fc3068273733e1661a3a56896739cf27 (commit) via 00175664f300a55257228d86aa1871700591a508 (commit) via 7fcfb2dae9110d35da769da4916fbade463434dc (commit) from 3797305ec02cb8bc374813b1a15aea5fb9b70a48 (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 89f3d66c24acadc30c72c97fc8012e9f995e7eee Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Nov 27 12:50:19 2011 +0100 snort: update to 2.9.1.2. commit 429dc4a2fc3068273733e1661a3a56896739cf27 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Nov 27 12:40:11 2011 +0100 daq: update to 0.6.2. commit 00175664f300a55257228d86aa1871700591a508 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Thu Nov 24 22:49:46 2011 +0100 smartmontools: update to 5.42. commit 7fcfb2dae9110d35da769da4916fbade463434dc Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Thu Nov 24 21:33:19 2011 +0100 htop: update to 1.0. ----------------------------------------------------------------------- Summary of changes: config/rootfiles/common/snort | 64 +++++++++++++ config/snort/snort.conf | 203 ++++++++++++++++++++++++++++++----------- html/cgi-bin/ids.cgi | 8 +- lfs/daq | 4 +- lfs/htop | 6 +- lfs/smartmontools | 4 +- lfs/snort | 4 +- src/initscripts/init.d/snort | 6 +- 8 files changed, 226 insertions(+), 73 deletions(-) Difference in files: diff --git a/config/rootfiles/common/snort b/config/rootfiles/common/snort index 090a950..e07d6b5 100644 --- a/config/rootfiles/common/snort +++ b/config/rootfiles/common/snort @@ -6,7 +6,50 @@ etc/snort/snort.conf etc/snort/unicode.map usr/bin/u2boat usr/bin/u2spewfoo +#usr/include/snort +#usr/include/snort/dynamic_preproc +#usr/include/snort/dynamic_preproc/bitop.h +#usr/include/snort/dynamic_preproc/cpuclock.h +#usr/include/snort/dynamic_preproc/idle_processing.h +#usr/include/snort/dynamic_preproc/ipv6_port.h +#usr/include/snort/dynamic_preproc/mempool.h +#usr/include/snort/dynamic_preproc/obfuscation.h +#usr/include/snort/dynamic_preproc/preprocids.h +#usr/include/snort/dynamic_preproc/profiler.h +#usr/include/snort/dynamic_preproc/segment_mem.h +#usr/include/snort/dynamic_preproc/sfPolicy.h +#usr/include/snort/dynamic_preproc/sfPolicyUserData.h +#usr/include/snort/dynamic_preproc/sf_decompression.h +#usr/include/snort/dynamic_preproc/sf_dynamic_common.h +#usr/include/snort/dynamic_preproc/sf_dynamic_define.h +#usr/include/snort/dynamic_preproc/sf_dynamic_engine.h +#usr/include/snort/dynamic_preproc/sf_dynamic_meta.h +#usr/include/snort/dynamic_preproc/sf_dynamic_preproc_lib.h +#usr/include/snort/dynamic_preproc/sf_dynamic_preprocessor.h +#usr/include/snort/dynamic_preproc/sf_ip.h +#usr/include/snort/dynamic_preproc/sf_preproc_info.h +#usr/include/snort/dynamic_preproc/sf_protocols.h +#usr/include/snort/dynamic_preproc/sf_sdlist_types.h +#usr/include/snort/dynamic_preproc/sf_snort_packet.h +#usr/include/snort/dynamic_preproc/sf_snort_plugin_api.h +#usr/include/snort/dynamic_preproc/sfcommon.h +#usr/include/snort/dynamic_preproc/sfcontrol.h +#usr/include/snort/dynamic_preproc/sfrt.h +#usr/include/snort/dynamic_preproc/sfrt_dir.h +#usr/include/snort/dynamic_preproc/sfrt_flat.h +#usr/include/snort/dynamic_preproc/sfrt_flat_dir.h +#usr/include/snort/dynamic_preproc/sfrt_trie.h +#usr/include/snort/dynamic_preproc/snort_bounds.h +#usr/include/snort/dynamic_preproc/snort_debug.h +#usr/include/snort/dynamic_preproc/ssl.h +#usr/include/snort/dynamic_preproc/str_search.h +#usr/include/snort/dynamic_preproc/stream_api.h usr/lib/pkgconfig/snort.pc +usr/lib/pkgconfig/snort_preproc.pc +#usr/lib/snort +usr/lib/snort/dynamic_preproc +#usr/lib/snort/dynamic_preproc/libsf_dynamic_preproc.a +#usr/lib/snort/dynamic_preproc/libsf_dynamic_preproc.la usr/lib/snort_dynamicengine #usr/lib/snort_dynamicengine/libsf_engine.la #usr/lib/snort_dynamicengine/libsf_engine.so @@ -25,10 +68,26 @@ usr/lib/snort_dynamicpreprocessor #usr/lib/snort_dynamicpreprocessor/libsf_ftptelnet_preproc.so #usr/lib/snort_dynamicpreprocessor/libsf_ftptelnet_preproc.so.0 #usr/lib/snort_dynamicpreprocessor/libsf_ftptelnet_preproc.so.0.0.0 +#usr/lib/snort_dynamicpreprocessor/libsf_imap_preproc.la +#usr/lib/snort_dynamicpreprocessor/libsf_imap_preproc.so +#usr/lib/snort_dynamicpreprocessor/libsf_imap_preproc.so.0 +#usr/lib/snort_dynamicpreprocessor/libsf_imap_preproc.so.0.0.0 +#usr/lib/snort_dynamicpreprocessor/libsf_pop_preproc.la +#usr/lib/snort_dynamicpreprocessor/libsf_pop_preproc.so +#usr/lib/snort_dynamicpreprocessor/libsf_pop_preproc.so.0 +#usr/lib/snort_dynamicpreprocessor/libsf_pop_preproc.so.0.0.0 +#usr/lib/snort_dynamicpreprocessor/libsf_reputation_preproc.la +#usr/lib/snort_dynamicpreprocessor/libsf_reputation_preproc.so +#usr/lib/snort_dynamicpreprocessor/libsf_reputation_preproc.so.0 +#usr/lib/snort_dynamicpreprocessor/libsf_reputation_preproc.so.0.0.0 #usr/lib/snort_dynamicpreprocessor/libsf_sdf_preproc.la #usr/lib/snort_dynamicpreprocessor/libsf_sdf_preproc.so #usr/lib/snort_dynamicpreprocessor/libsf_sdf_preproc.so.0 #usr/lib/snort_dynamicpreprocessor/libsf_sdf_preproc.so.0.0.0 +#usr/lib/snort_dynamicpreprocessor/libsf_sip_preproc.la +#usr/lib/snort_dynamicpreprocessor/libsf_sip_preproc.so +#usr/lib/snort_dynamicpreprocessor/libsf_sip_preproc.so.0 +#usr/lib/snort_dynamicpreprocessor/libsf_sip_preproc.so.0.0.0 #usr/lib/snort_dynamicpreprocessor/libsf_smtp_preproc.la #usr/lib/snort_dynamicpreprocessor/libsf_smtp_preproc.so #usr/lib/snort_dynamicpreprocessor/libsf_smtp_preproc.so.0 @@ -59,6 +118,7 @@ usr/sbin/snort #usr/share/doc/snort/README.active #usr/share/doc/snort/README.alert_order #usr/share/doc/snort/README.asn1 +#usr/share/doc/snort/README.counts #usr/share/doc/snort/README.csv #usr/share/doc/snort/README.daq #usr/share/doc/snort/README.database @@ -73,16 +133,20 @@ usr/sbin/snort #usr/share/doc/snort/README.ftptelnet #usr/share/doc/snort/README.gre #usr/share/doc/snort/README.http_inspect +#usr/share/doc/snort/README.imap #usr/share/doc/snort/README.ipip #usr/share/doc/snort/README.ipv6 #usr/share/doc/snort/README.multipleconfigs #usr/share/doc/snort/README.normalize #usr/share/doc/snort/README.pcap_readmode +#usr/share/doc/snort/README.pop #usr/share/doc/snort/README.ppm #usr/share/doc/snort/README.reload +#usr/share/doc/snort/README.reputation #usr/share/doc/snort/README.rzb_saac #usr/share/doc/snort/README.sensitive_data #usr/share/doc/snort/README.sfportscan +#usr/share/doc/snort/README.sip #usr/share/doc/snort/README.ssh #usr/share/doc/snort/README.ssl #usr/share/doc/snort/README.stream5 diff --git a/config/snort/snort.conf b/config/snort/snort.conf index 3afa6f1..0ce0140 100644 --- a/config/snort/snort.conf +++ b/config/snort/snort.conf @@ -1,68 +1,66 @@ -#-------------------------------------------------- -# http://www.snort.org Snort Ruleset -# Contact: snort-sigs(a)lists.sourceforge.net -#-------------------------------------------------- -# $Id$ -# ################################################### -# This file contains a sample snort configuration. -# You should take the following steps to create your own custom configuration: +# IPFire snort.conf # -# 1) Set the network variables. -# 2) Configure the decoder -# 3) Configure the base detection engine -# 4) Configure dynamic loaded libraries -# 5) Configure preprocessors -# 6) Configure output plugins -# 7) Customize your rule set -# 8) Customize preprocessor and decoder rule set -# 9) Customize shared object rule set +# some parts of this file are changed/updated by the webif ################################################### +# VERSIONS : 2.9.1.1 + +include /etc/snort/vars ################################################### # Step #1: Set the network variables. For more information, see README.variables ################################################### -include /etc/snort/vars - -# Setup the network addresses you are protecting # taken from /etc/snort vars -#var HOME_NET any +#ipvar HOME_NET any -# Set up the external network addresses. A good start may be "any" -var EXTERNAL_NET any +# Set up the external network addresses. Leave as "any" in most situations +ipvar EXTERNAL_NET any # List of DNS servers on your network -# taken from /etc/snort vars -#var DNS_SERVERS $HOME_NET +#ipvar DNS_SERVERS $HOME_NET # List of SMTP servers on your network -var SMTP_SERVERS $HOME_NET +ipvar SMTP_SERVERS $HOME_NET # List of web servers on your network -var HTTP_SERVERS $HOME_NET +ipvar HTTP_SERVERS $HOME_NET # List of sql servers on your network -var SQL_SERVERS $HOME_NET +ipvar SQL_SERVERS $HOME_NET # List of telnet servers on your network -var TELNET_SERVERS $HOME_NET +ipvar TELNET_SERVERS $HOME_NET # List of ssh servers on your network -var SSH_SERVERS $HOME_NET +ipvar SSH_SERVERS $HOME_NET + +# List of ftp servers on your network +ipvar FTP_SERVERS $HOME_NET + +# List of sip servers on your network +ipvar SIP_SERVERS $HOME_NET # List of ports you run web servers on -portvar HTTP_PORTS [80,311,591,593,901,1220,1414,1830,2301,2381,2809,3128,3702,5250,7001,7777,7779,8000,8008,8028,8080,8088,8118,8123,8180,8243,8280,8888,9090,9091,9443,9999,11371] +portvar HTTP_PORTS [80,81,311,444,591,593,901,1220,1414,1830,2301,2381,2809,3128,3702,5250,7001,7777,7779,8000,8008,8028,8080,8088,8118,8123,8180,8181,8243,8280,8888,9090,9091,9443,9999,11371] # List of ports you want to look for SHELLCODE on. portvar SHELLCODE_PORTS !80 # List of ports you might see oracle attacks on portvar ORACLE_PORTS 1024: -# List of ssh ports -portvar SSH_PORTS [22,222] + +# List of ports you want to look for SSH connections on: +portvar SSH_PORTS [22,222] + +# List of ports you run ftp servers on +portvar FTP_PORTS [21,2100,3535] + +# List of ports you run SIP servers on +portvar SIP_PORTS [5060,5061,5600] + # other variables, these should not be modified -var AIM_SERVERS [64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24] +ipvar AIM_SERVERS [64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24] # Path to your rules files (this can be a relative path) # Note for Windows users: You are advised to make this an absolute path, @@ -71,6 +69,7 @@ var RULE_PATH /etc/snort/rules var SO_RULE_PATH /etc/snort/so_rules var PREPROC_RULE_PATH /etc/snort/preproc_rules + ################################################### # Step #2: Configure the decoder. For more information, see README.decode ################################################### @@ -85,13 +84,13 @@ config disable_tcpopt_experimental_alerts config disable_tcpopt_obsolete_alerts # Stop Alerts on T/TCP alerts -#config disable_tcpopt_ttcp_alerts +# config disable_tcpopt_ttcp_alerts # Stop Alerts on all other TCPOption type events: config disable_tcpopt_alerts # Stop Alerts on invalid ip options -#config disable_ipopt_alerts +# config disable_ipopt_alerts # Alert if value in length field (IP, TCP, UDP) is greater th elength of the packet # config enable_decode_oversized_alerts @@ -111,6 +110,39 @@ config checksum_mode: all # Configure active response for non inline operation. For more information, see REAMDE.active # config response: eth0 attempts 2 + +# Configure DAQ related options for inline operation. For more information, see README.daq +# +# config daq: <type> +# config daq_dir: <dir> +# config daq_mode: <mode> +# config daq_var: <var> +# +# <type> ::= pcap | afpacket | dump | nfq | ipq | ipfw +# <mode> ::= read-file | passive | inline +# <var> ::= arbitrary <name>=<value passed to DAQ +# <dir> ::= path as to where to look for DAQ module so's + +# Configure specific UID and GID to run snort as after dropping privs. For more information see snort -h command line options +# +# config set_gid: +# config set_uid: + +# Configure default snaplen. Snort defaults to MTU of in use interface. For more information see README +# +# config snaplen: +# + +# Configure default bpf_file to use for filtering what traffic reaches snort. For more information see snort -h command line options (-F) +# +# config bpf_file: +# + +# Configure default log directory for snort to log to. For more information see snort -h command line options (-l) +# +# config logdir: + + ################################################### # Step #3: Configure the base detection engine. For more information, see README.decode ################################################### @@ -149,6 +181,7 @@ config event_queue: max_queue 8 log 3 order_events content_length #config profile_rules: print all, sort avg_ticks #config profile_preprocs: print all, sort avg_ticks + ################################################### # Step #4: Configure dynamic loaded libraries. # For more information, see Snort Manual, Configuring Snort - Dynamic Modules @@ -161,7 +194,7 @@ dynamicpreprocessor directory /usr/lib/snort_dynamicpreprocessor/ dynamicengine /usr/lib/snort_dynamicengine/libsf_engine.so # path to dynamic rules libraries -# dynamicdetection directory /usr/lib/snort_dynamicrules +# dynamicdetection directory /usr/local/lib/snort_dynamicrules ################################################### # Step #5: Configure preprocessors @@ -173,20 +206,27 @@ dynamicengine /usr/lib/snort_dynamicengine/libsf_engine.so preprocessor normalize_ip4 preprocessor normalize_tcp: ips ecn stream preprocessor normalize_icmp4 +preprocessor normalize_ip6 +preprocessor normalize_icmp6 # Target-based IP defragmentation. For more inforation, see README.frag3 preprocessor frag3_global: max_frags 65536 preprocessor frag3_engine: policy windows detect_anomalies overlap_limit 10 min_fragment_length 100 timeout 180 # Target-Based stateful inspection/stream reassembly. For more inforation, see README.stream5 -preprocessor stream5_global: max_tcp 8192, track_tcp yes, track_udp yes, track_icmp no max_active_responses 2 min_response_seconds 5 - +preprocessor stream5_global: track_tcp yes, \ + track_udp yes, \ + track_icmp no, \ + max_tcp 262144, \ + max_udp 131072, \ + max_active_responses 2, \ + min_response_seconds 5 preprocessor stream5_tcp: policy windows, detect_anomalies, require_3whs 180, \ overlap_limit 10, small_segments 3 bytes 150, timeout 180, \ ports client 21 22 23 25 42 53 79 109 110 111 113 119 135 136 137 139 143 \ 161 445 513 514 587 593 691 1433 1521 2100 3306 6070 6665 6666 6667 6668 6669 \ - 7000 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \ - ports both 80 311 443 465 563 591 593 636 901 989 992 993 994 995 1220 1414 1830 2301 2381 2809 3128 3702 5250 6907 7001 7702 7777 7779 \ + 7000 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \ + ports both 80 81 311 443 465 563 591 593 636 901 989 992 993 994 995 1220 1414 1830 2301 2381 2809 3128 3702 5250 7907 7001 7802 7777 7779 \ 7801 7900 7901 7902 7903 7904 7905 7906 7908 7909 7910 7911 7912 7913 7914 7915 7916 \ 7917 7918 7919 7920 8000 8008 8028 8080 8088 8118 8123 8180 8243 8280 8888 9090 9091 9443 9999 11371 preprocessor stream5_udp: timeout 180 @@ -195,8 +235,7 @@ preprocessor stream5_udp: timeout 180 # preprocessor perfmonitor: time 300 file /var/snort/snort.stats pktcnt 10000 # HTTP normalization and anomaly detection. For more information, see README.http_inspect -preprocessor http_inspect: global iis_unicode_map unicode.map 1252 compress_depth 20480 decompress_depth 20480 - +preprocessor http_inspect: global iis_unicode_map unicode.map 1252 compress_depth 65535 decompress_depth 65535 preprocessor http_inspect_server: server default \ chunk_length 500000 \ server_flow_depth 0 \ @@ -205,7 +244,7 @@ preprocessor http_inspect_server: server default \ oversize_dir_length 500 \ max_header_length 750 \ max_headers 100 \ - ports { 80 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 5250 7001 7777 7779 8000 8008 8028 8080 8088 8118 8123 8180 8243 8280 8888 9090 9091 9443 9999 11371 } \ + ports { 80 81 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702 5250 7001 7777 7779 8000 8008 8028 8080 8088 8118 8123 8180 8181 8243 8280 8888 9090 9091 9443 9999 11371 } \ non_rfc_char { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 } \ enable_cookie \ extended_response_inspection \ @@ -215,14 +254,13 @@ preprocessor http_inspect_server: server default \ apache_whitespace no \ ascii no \ bare_byte no \ - base36 no \ directory no \ double_decode no \ iis_backslash no \ iis_delimiter no \ iis_unicode no \ multi_slash no \ - utf_8 no \ + utf_8 no \ u_encode yes \ webroot no @@ -234,12 +272,10 @@ preprocessor bo # FTP / Telnet normalization and anomaly detection. For more information, see README.ftptelnet preprocessor ftp_telnet: global inspection_type stateful encrypted_traffic no - preprocessor ftp_telnet_protocol: telnet \ ayt_attack_thresh 20 \ normalize ports { 23 } \ detect_anomalies - preprocessor ftp_telnet_protocol: ftp server default \ def_max_param_len 100 \ ports { 21 2100 3535 } \ @@ -277,18 +313,24 @@ preprocessor ftp_telnet_protocol: ftp server default \ cmd_validity PROT < char CSEP > \ cmd_validity STRU < char FRPO [ string ] > \ cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } > - preprocessor ftp_telnet_protocol: ftp client default \ max_resp_len 256 \ bounce yes \ ignore_telnet_erase_cmds yes \ telnet_cmds yes + # SMTP normalization and anomaly detection. For more information, see README.SMTP preprocessor smtp: ports { 25 465 587 691 } \ inspection_type stateful \ - enable_mime_decoding \ - max_mime_depth 20480 \ + b64_decode_depth 0 \ + qp_decode_depth 0 \ + bitenc_decode_depth 0 \ + uu_decode_depth 0 \ + log_mailfrom \ + log_rcptto \ + log_filename \ + log_email_hdrs \ normalize cmds \ normalize_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY } \ normalize_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND SOML } \ @@ -316,7 +358,7 @@ preprocessor sfportscan: proto { all } memcap { 10000000 } sense_level { medium # preprocessor arpspoof_detect_host: 192.168.40.1 f0:0f:00:f0:0f:00 # SSH anomaly detection. For more information, see README.ssh -preprocessor ssh: server_ports { 22 222 } \ +preprocessor ssh: server_ports { 22,222 } \ autodetect \ max_client_bytes 19600 \ max_encrypted_packets 20 \ @@ -329,17 +371,66 @@ preprocessor dcerpc2: memcap 102400, events [co ] preprocessor dcerpc2_server: default, policy WinXP, \ detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \ autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \ - smb_max_chain 3 + smb_max_chain 3, smb_invalid_shares ["C$", "D$", "ADMIN$"] # DNS anomaly detection. For more information, see README.dns preprocessor dns: ports { 53 } enable_rdata_overflow # SSL anomaly detection and traffic bypass. For more information, see README.ssl -preprocessor ssl: ports { 443 444 465 563 636 989 992 993 994 995 7801 7702 7900 7901 7902 7903 7904 7905 7906 6907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 }, trustservers, noinspect_encrypted +preprocessor ssl: ports { 443 444 465 563 636 989 992 993 994 995 7801 7802 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 }, trustservers, noinspect_encrypted # SDF sensitive data preprocessor. For more information see README.sensitive_data preprocessor sensitive_data: alert_threshold 25 +# SIP Session Initiation Protocol preprocessor. For more information see README.sip +preprocessor sip: max_sessions 10000, \ + ports { 5060 5061 5600 }, \ + methods { invite \ + cancel \ + ack \ + bye \ + register \ + options \ + refer \ + subscribe \ + update \ + join \ + info \ + message \ + notify \ + benotify \ + do \ + qauth \ + sprack \ + publish \ + service \ + unsubscribe \ + prack }, \ + max_uri_len 512, \ + max_call_id_len 80, \ + max_requestName_len 20, \ + max_from_len 256, \ + max_to_len 256, \ + max_via_len 1024, \ + max_contact_len 512, \ + max_content_len 1024 + +# IMAP preprocessor. For more information see README.imap +preprocessor imap: \ + ports { 143 } \ + b64_decode_depth 0 \ + qp_decode_depth 0 \ + bitenc_decode_depth 0 \ + uu_decode_depth 0 + +# POP preprocessor. For more information see README.pop +preprocessor pop: \ + ports { 110 } \ + b64_decode_depth 0 \ + qp_decode_depth 0 \ + bitenc_decode_depth 0 \ + uu_decode_depth 0 + ################################################### # Step #6: Configure output plugins # For more information, see Snort Manual, Configuring Snort - Output Modules @@ -352,6 +443,7 @@ preprocessor sensitive_data: alert_threshold 25 # Additional configuration for specific types of installs # output alert_unified2: filename snort.alert, limit 128, nostamp # output log_unified2: filename snort.log, limit 128, nostamp + # syslog # output alert_syslog: LOG_AUTH LOG_ALERT @@ -375,5 +467,6 @@ include /etc/snort/rules/reference.config # For more information, see Snort Manual, Writing Snort Rules ################################################### +# # site specific rules - +# diff --git a/html/cgi-bin/ids.cgi b/html/cgi-bin/ids.cgi index 220bad0..31b8730 100644 --- a/html/cgi-bin/ids.cgi +++ b/html/cgi-bin/ids.cgi @@ -263,13 +263,9 @@ if (-e "/etc/snort/snort.conf") { ####################### End added for snort rules control ################################# if ($snortsettings{'RULES'} eq 'subscripted') { - #$url="http://dl.snort.org/sub-rules/snortrules-snapshot-2.8_s.tar.gz?oink_code=$s…'OINKCODE'}"; - $url=" http://www.snort.org/reg-rules/snortrules-snapshot-2904_s.tar.gz/$snortsett…'OINKCODE'}"; - #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8_s.tar.gz"; + $url=" http://www.snort.org/reg-rules/snortrules-snapshot-2912_s.tar.gz/$snortsett…'OINKCODE'}"; } elsif ($snortsettings{'RULES'} eq 'registered') { - #$url="http://dl.snort.org/reg-rules/snortrules-snapshot-2.8.tar.gz?oink_code=$sno…'OINKCODE'}"; - $url=" http://www.snort.org/reg-rules/snortrules-snapshot-2904.tar.gz/$snortsettin…'OINKCODE'}"; - #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8.tar.gz"; + $url=" http://www.snort.org/reg-rules/snortrules-snapshot-2912.tar.gz/$snortsettin…'OINKCODE'}"; } else { $url="http://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz"; } diff --git a/lfs/daq b/lfs/daq index 47e404c..df35661 100644 --- a/lfs/daq +++ b/lfs/daq @@ -24,7 +24,7 @@ include Config -VER = 0.5 +VER = 0.6.2 THISAPP = daq-$(VER) DL_FILE = $(THISAPP).tar.gz @@ -40,7 +40,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = ea9d8147f39c44ce00dd2d7eb19ce0ea +$(DL_FILE)_MD5 = 6ea8aaa6f067f8b8ef6de45b95d55875 install : $(TARGET) diff --git a/lfs/htop b/lfs/htop index 0f65426..967fc8a 100644 --- a/lfs/htop +++ b/lfs/htop @@ -24,7 +24,7 @@ include Config -VER = 0.9 +VER = 1.0 THISAPP = htop-$(VER) DL_FILE = $(THISAPP).tar.gz @@ -32,7 +32,7 @@ DL_FROM = $(URL_IPFIRE) DIR_APP = $(DIR_SRC)/$(THISAPP) TARGET = $(DIR_INFO)/$(THISAPP) PROG = htop -PAK_VER = 4 +PAK_VER = 5 DEPS = "" @@ -44,7 +44,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = 7c5507f35f363f3f40183a2ba3c561f8 +$(DL_FILE)_MD5 = 325112ca7947ea1f6d6441f631e00384 install : $(TARGET) diff --git a/lfs/smartmontools b/lfs/smartmontools index 3f92cb7..63e51f2 100644 --- a/lfs/smartmontools +++ b/lfs/smartmontools @@ -24,7 +24,7 @@ include Config -VER = 5.41 +VER = 5.42 THISAPP = smartmontools-$(VER) DL_FILE = $(THISAPP).tar.gz @@ -40,7 +40,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = 4577886bea79d4ff12bd9a7d323ce692 +$(DL_FILE)_MD5 = 4460bf9a79a1252ff5c00ba52cf76b2a install : $(TARGET) diff --git a/lfs/snort b/lfs/snort index ebffada..8b69397 100644 --- a/lfs/snort +++ b/lfs/snort @@ -24,7 +24,7 @@ include Config -VER = 2.9.0.4 +VER = 2.9.1.2 THISAPP = snort-$(VER) DL_FILE = $(THISAPP).tar.gz @@ -40,7 +40,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = 09b2a2d47d3de8106d0b625f7d8070c5 +$(DL_FILE)_MD5 = 9e94f20b934566469c239966e1b41eba install : $(TARGET) diff --git a/src/initscripts/init.d/snort b/src/initscripts/init.d/snort index b157b80..42968d8 100644 --- a/src/initscripts/init.d/snort +++ b/src/initscripts/init.d/snort @@ -61,15 +61,15 @@ case "$1" in fi fi HOMENET+="127.0.0.1" - echo "var HOME_NET [$HOMENET]" > /etc/snort/vars + echo "ipvar HOME_NET [$HOMENET]" > /etc/snort/vars DNS1=`cat /var/ipfire/red/dns1 2>/dev/null` DNS2=`cat /var/ipfire/red/dns2 2>/dev/null` if [ "$DNS2" ]; then - echo "var DNS_SERVERS [$DNS1,$DNS2]" >> /etc/snort/vars + echo "ipvar DNS_SERVERS [$DNS1,$DNS2]" >> /etc/snort/vars else - echo "var DNS_SERVERS $DNS1" >> /etc/snort/vars + echo "ipvar DNS_SERVERS $DNS1" >> /etc/snort/vars fi for DEVICE in $DEVICES; do 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. 71858032e55cf8620a69033f6897a2152eb142d9
by git＠ipfire.org 27 Nov '11

27 Nov '11

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 71858032e55cf8620a69033f6897a2152eb142d9 (commit) via 85cfb6743bf061beed3820b914e9bfb5c8075c56 (commit) via 173c3b05242b028b420eb5112d7917c5548d0698 (commit) via 5bc4053916f3c6ab246e60ff1fcefd70b57baaa1 (commit) from 43a405aa48216dc988314fc35253358ffc2e53c8 (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 71858032e55cf8620a69033f6897a2152eb142d9 Merge: 85cfb67 5bc4053 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Nov 27 11:46:14 2011 +0100 Merge remote-tracking branch 'stevee/m4' commit 85cfb6743bf061beed3820b914e9bfb5c8075c56 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Nov 27 11:43:23 2011 +0100 kernel: Make all kernels provide kernel=<version>. This is required if a specific feature is only provided by a specific version of the kernel. This will allow to install a different version of the kernel (e.g. kernel-PAE) without having dependency problems. All kernel packages do fully replace the main kernel. commit 173c3b05242b028b420eb5112d7917c5548d0698 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Nov 27 11:42:45 2011 +0100 mstpd: Update to latest SVN version (20). Add script to easily generate tarballs directly from SVN. commit 5bc4053916f3c6ab246e60ff1fcefd70b57baaa1 Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Fri Nov 25 19:21:23 2011 +0100 m4: Add readlink-einval.patch / Activate testsuite. ----------------------------------------------------------------------- Summary of changes: kernel/kernel.nm | 4 +- m4/m4.nm | 15 +- m4/patches/m4-1.4.16-readlink-einval.patch | 12 ++ mstpd/mstpd.nm | 11 +- .../ignore-carrier-state-on-bridge-device.patch0 | 140 -------------------- mstpd/svn-export.sh | 20 +++ 6 files changed, 44 insertions(+), 158 deletions(-) create mode 100644 m4/patches/m4-1.4.16-readlink-einval.patch delete mode 100644 mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 create mode 100755 mstpd/svn-export.sh Difference in files: diff --git a/kernel/kernel.nm b/kernel/kernel.nm index 0db132d..f24a474 100644 --- a/kernel/kernel.nm +++ b/kernel/kernel.nm @@ -5,7 +5,7 @@ name = kernel version = 3.1.1 -release = 1 +release = 2 thisapp = linux-%{version} maintainer = Michael Tremer <michael.tremer(a)ipfire.org> @@ -249,7 +249,7 @@ packages summary = The Linux kernel %{kernel_release}. prerequires = dracut grubby module-init-tools - provides = kernel + provides = kernel=%{kernel_release} requires %{prerequires} linux-firmware diff --git a/m4/m4.nm b/m4/m4.nm index 837951a..cd2c64d 100644 --- a/m4/m4.nm +++ b/m4/m4.nm @@ -5,7 +5,7 @@ name = m4 version = 1.4.16 -release = 1 +release = 2 groups = Applications/Text url = http://www.gnu.org/software/m4/ @@ -21,15 +21,14 @@ description configure scripts, but not for running configure scripts. end -source_dl = +source_dl = http://ftp.gnu.org/gnu/m4/ sources = %{thisapp}.tar.xz -# Testsuite is broken ( readlink ) -#build -# test -# make check -# end -#end +build + test + make check + end +end packages package %{name} diff --git a/m4/patches/m4-1.4.16-readlink-einval.patch b/m4/patches/m4-1.4.16-readlink-einval.patch new file mode 100644 index 0000000..6a98751 --- /dev/null +++ b/m4/patches/m4-1.4.16-readlink-einval.patch @@ -0,0 +1,12 @@ +diff -up m4-1.4.16/tests/test-readlink.h.orig m4-1.4.16/tests/test-readlink.h +--- m4-1.4.16/tests/test-readlink.h.orig 2011-09-19 12:44:58.745546826 +0200 ++++ m4-1.4.16/tests/test-readlink.h 2011-09-19 12:46:00.079548410 +0200 +@@ -38,7 +38,7 @@ test_readlink (ssize_t (*func) (char con + ASSERT (errno == ENOENT); + errno = 0; + ASSERT (func ("", buf, sizeof buf) == -1); +- ASSERT (errno == ENOENT); ++ ASSERT (errno == ENOENT || errno == EINVAL); + errno = 0; + ASSERT (func (".", buf, sizeof buf) == -1); + ASSERT (errno == EINVAL); diff --git a/mstpd/mstpd.nm b/mstpd/mstpd.nm index 24fd092..11698f3 100644 --- a/mstpd/mstpd.nm +++ b/mstpd/mstpd.nm @@ -5,8 +5,8 @@ name = mstpd version = 0.01 -svn_ver = 16 -release = 0.2-svn%{svn_ver}.4 +svn_ver = 20 +release = 0.2-svn%{svn_ver}.1 thisapp = %{name}-%{version}-svn%{svn_ver} groups = Networking/Tools @@ -20,8 +20,7 @@ description end # Tarballs are created as follows: -# svn export http://svn.code.sf.net/p/mstpd/code/trunk mstpd-%{version}-svn%{svn_ver} -# tar cvfz mstpd-%{version}-svn%{svn_ver}.tar.gz mstpd-%{version}-svn%{svn_ver} +# ./svn-export.sh %{version} %{svn_ver} build # Compile for release. @@ -36,10 +35,6 @@ packages package %{name} requires = network - # A regression in the Linux kernel causes that no port - # was brought up. It was fixed in 3.0.4-11. - conflicts += kernel<3.0.4-11 - # Replace rstp. provides += rstp=0.21-9 obsoletes += rstp<0.21-9 diff --git a/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 b/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 deleted file mode 100644 index 189bf96..0000000 --- a/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 +++ /dev/null @@ -1,140 +0,0 @@ -Index: bridge_ctl.h -=================================================================== ---- bridge_ctl.h (revision 16) -+++ bridge_ctl.h (working copy) -@@ -81,7 +81,7 @@ - - int init_bridge_ops(void); - --int bridge_notify(int br_index, int if_index, bool newlink, bool up); -+int bridge_notify(int br_index, int if_index, bool newlink, unsigned flags); - - void bridge_bpdu_rcv(int ifindex, const unsigned char *data, int len); - -Index: brmon.c -=================================================================== ---- brmon.c (revision 16) -+++ brmon.c (working copy) -@@ -66,7 +66,7 @@ - int len = n->nlmsg_len; - char b1[IFNAMSIZ]; - int af_family = ifi->ifi_family; -- bool newlink, up; -+ bool newlink; - int br_index; - - if(n->nlmsg_type == NLMSG_DONE) -@@ -154,12 +154,6 @@ - fflush(fp); - - newlink = (n->nlmsg_type == RTM_NEWLINK); -- up = false; -- if(newlink && tb[IFLA_OPERSTATE]) -- { -- int state = *(uint8_t*)RTA_DATA(tb[IFLA_OPERSTATE]); -- up = (state == IF_OPER_UP) || (state == IF_OPER_UNKNOWN); -- } - - if(tb[IFLA_MASTER]) - br_index = *(int*)RTA_DATA(tb[IFLA_MASTER]); -@@ -168,7 +162,7 @@ - else - br_index = -1; - -- bridge_notify(br_index, ifi->ifi_index, newlink, up); -+ bridge_notify(br_index, ifi->ifi_index, newlink, ifi->ifi_flags); - - return 0; - } -Index: bridge_track.c -=================================================================== ---- bridge_track.c (revision 16) -+++ bridge_track.c (working copy) -@@ -279,13 +279,15 @@ - } - - /* br_index == if_index means: interface is bridge master */ --int bridge_notify(int br_index, int if_index, bool newlink, bool up) -+int bridge_notify(int br_index, int if_index, bool newlink, unsigned flags) - { - port_t *ifc; - bridge_t *br = NULL, *other_br; -+ bool up = !!(flags & IFF_UP); -+ bool running = up && (flags & IFF_RUNNING); - -- LOG("br_index %d, if_index %d, newlink %d, up %d", -- br_index, if_index, newlink, up); -+ LOG("br_index %d, if_index %d, newlink %d, up %d, running %d", -+ br_index, if_index, newlink, up, running); - - if((br_index >= 0) && (br_index != if_index)) - { -@@ -296,9 +298,9 @@ - ERROR("Couldn't create data for bridge interface %d", br_index); - return -1; - } -- int br_up = ethtool_get_link(br->sysdeps.name); -- if(br_up >= 0) -- set_br_up(br, !!br_up); -+ int br_flags = get_flags(br->sysdeps.name); -+ if(br_flags >= 0) -+ set_br_up(br, !!(flags & IFF_UP)); - } - - if(br) -@@ -336,7 +338,7 @@ - delete_if(ifc); - return 0; - } -- set_if_up(ifc, up); /* And speed and duplex */ -+ set_if_up(ifc, running); /* And speed and duplex */ - } - else - { /* Interface is not a bridge slave */ -Index: netif_utils.c -=================================================================== ---- netif_utils.c (revision 16) -+++ netif_utils.c (working copy) -@@ -65,23 +65,17 @@ - return 0; - } - --int ethtool_get_link(char *ifname) -+int get_flags(char *ifname) - { - struct ifreq ifr; - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, ifname, IFNAMSIZ); -- struct ethtool_value eval; -- -- eval.cmd = ETHTOOL_GLINK; -- ifr.ifr_data = (caddr_t)&eval; -- if(0 > ioctl(netsock, SIOCETHTOOL, &ifr)) -+ if(0 > ioctl(netsock, SIOCGIFFLAGS, &ifr)) - { -- ERROR("Cannot get link status for %s: %m\n", ifname); -+ ERROR("%s: get interface flags failed: %m", ifname); - return -1; - } -- if(eval.data) -- return 1; -- return 0; -+ return ifr.ifr_flags; - } - - int ethtool_get_speed_duplex(char *ifname, int *speed, int *duplex) -Index: netif_utils.h -=================================================================== ---- netif_utils.h (revision 16) -+++ netif_utils.h (working copy) -@@ -31,9 +31,9 @@ - int netsock_init(void); - - int get_hwaddr(char *ifname, unsigned char *hwaddr); -+int get_flags(char *ifname); - - int ethtool_get_speed_duplex(char *ifname, int *speed, int *duplex); --int ethtool_get_link(char *ifname); - - bool is_bridge(char *if_name); - diff --git a/mstpd/svn-export.sh b/mstpd/svn-export.sh new file mode 100755 index 0000000..662d3d3 --- /dev/null +++ b/mstpd/svn-export.sh @@ -0,0 +1,20 @@ +#!/bin/bash + +version=${1} +revision=${2} + +if [ -z "${version}" ] || [ -z "${revision}" ]; then + echo "Usage ${0}: <version> <revision>" >&2 + exit 1 +fi + +export_dir=mstpd-${version}-svn${revision} +rm -rf ${export_dir} + +set -x + +svn export http://svn.code.sf.net/p/mstpd/code/trunk ${export_dir} +tar cfz mstpd-${version}-svn${revision}.tar.gz ${export_dir} +rm -rf ${export_dir} + +exit 0 hooks/post-receive -- IPFire 3.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, next, updated. 3797305ec02cb8bc374813b1a15aea5fb9b70a48
by git＠ipfire.org 24 Nov '11

24 Nov '11

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, next has been updated via 3797305ec02cb8bc374813b1a15aea5fb9b70a48 (commit) via be2e5265407562bd7faeb3f30eea6031a2cc10c8 (commit) from 70257827c55b64bce738a7bf8343ca019d62ec9b (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 3797305ec02cb8bc374813b1a15aea5fb9b70a48 Merge: be2e526 7025782 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Thu Nov 24 20:43:10 2011 +0100 Merge branch 'next' of arne_f@git.ipfire.org:/pub/git/ipfire-2.x into next commit be2e5265407562bd7faeb3f30eea6031a2cc10c8 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Sun Nov 20 12:09:48 2011 +0100 kernel-kirkwood: disabled mv_cesa accleration. mv_cesa crash with strongswan. ----------------------------------------------------------------------- Summary of changes: .../kernel/kernel.config.armv5tel-ipfire-kirkwood | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) Difference in files: diff --git a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood index bddf86b..29c6514 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood +++ b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood @@ -3444,7 +3444,7 @@ CONFIG_CRYPTO_LZO=m # CONFIG_CRYPTO_ANSI_CPRNG=m CONFIG_CRYPTO_HW=y -CONFIG_CRYPTO_DEV_MV_CESA=m +# CONFIG_CRYPTO_DEV_MV_CESA is not set CONFIG_CRYPTO_DEV_HIFN_795X=m CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y # CONFIG_BINARY_PRINTF is not set 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. 43a405aa48216dc988314fc35253358ffc2e53c8
by git＠ipfire.org 23 Nov '11

23 Nov '11

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 43a405aa48216dc988314fc35253358ffc2e53c8 (commit) via 8ef1102504359c5580b93b0e064ef68a2105abcc (commit) via 29663e22a623cc14c092f906c218592f5ebb6498 (commit) from 0f64d6ce1647a27c6249639d230c2e1af52b93a7 (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 43a405aa48216dc988314fc35253358ffc2e53c8 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 23:54:27 2011 +0100 mstpd: Replace rstp package. commit 8ef1102504359c5580b93b0e064ef68a2105abcc Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 23:47:23 2011 +0100 rstp: Remove package which is replaced by mstpd. commit 29663e22a623cc14c092f906c218592f5ebb6498 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 23:46:44 2011 +0100 mstpd: Don't make the kernel a requirement. ----------------------------------------------------------------------- Summary of changes: mstpd/mstpd.nm | 8 +- rstp/bridge-stp | 25 --- rstp/patches/rstp-0.21-dump-commands.patch | 274 ---------------------------- rstp/patches/rstp-0.21-netlink-fix.patch | 27 --- rstp/rstp.nm | 52 ------ rstp/systemd/rstp.service | 10 - 6 files changed, 6 insertions(+), 390 deletions(-) delete mode 100644 rstp/bridge-stp delete mode 100644 rstp/patches/rstp-0.21-dump-commands.patch delete mode 100644 rstp/patches/rstp-0.21-netlink-fix.patch delete mode 100644 rstp/rstp.nm delete mode 100644 rstp/systemd/rstp.service Difference in files: diff --git a/mstpd/mstpd.nm b/mstpd/mstpd.nm index 87d3741..24fd092 100644 --- a/mstpd/mstpd.nm +++ b/mstpd/mstpd.nm @@ -6,7 +6,7 @@ name = mstpd version = 0.01 svn_ver = 16 -release = 0.2-svn%{svn_ver}.2 +release = 0.2-svn%{svn_ver}.4 thisapp = %{name}-%{version}-svn%{svn_ver} groups = Networking/Tools @@ -38,7 +38,11 @@ packages # A regression in the Linux kernel causes that no port # was brought up. It was fixed in 3.0.4-11. - requires += kernel>=3.0.4-11 + conflicts += kernel<3.0.4-11 + + # Replace rstp. + provides += rstp=0.21-9 + obsoletes += rstp<0.21-9 script postin /bin/systemctl daemon-reload >/dev/null 2>&1 || : diff --git a/rstp/bridge-stp b/rstp/bridge-stp deleted file mode 100644 index 947c12b..0000000 --- a/rstp/bridge-stp +++ /dev/null @@ -1,25 +0,0 @@ -#!/bin/bash -############################################################################### -# # -# IPFire.org - A linux based firewall # -# Copyright (C) 2007, 2008, 2009 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/>. # -# # -############################################################################### -# -# This script always returns 0 to prevent the kernel -# starting its own stp implementation. - -exit 0 diff --git a/rstp/patches/rstp-0.21-dump-commands.patch b/rstp/patches/rstp-0.21-dump-commands.patch deleted file mode 100644 index cc48819..0000000 --- a/rstp/patches/rstp-0.21-dump-commands.patch +++ /dev/null @@ -1,274 +0,0 @@ -diff --git a/ctl_main.c b/ctl_main.c -index dd041d7..7382d97 100644 ---- a/ctl_main.c -+++ b/ctl_main.c -@@ -443,6 +443,240 @@ static int cmd_debuglevel(int argc, char *const *argv) - return CTL_set_debug_level(getuint(argv[1])); - } - -+#define DUMP_FMT(br_name, key) "%-8s %-26s ", br_name, key -+ -+static int do_dumpbridge(const char *br_name) { -+ STP_BridgeStatus s; -+ -+ int br_index = get_index_die(br_name, "bridge", 0); -+ if (br_index < 0) -+ return -1; -+ -+ int r = CTL_get_bridge_status(br_index, &s); -+ if (r) -+ return -1; -+ -+ /* bridge forward delay */ -+ printf(DUMP_FMT(br_name, "bridge_forward_delay")); -+ printf("%u\n", s.bridge_forward_delay); -+ -+ /* bridge hello time */ -+ printf(DUMP_FMT(br_name, "bridge_hello_time")); -+ printf("%u\n", s.bridge_hello_time); -+ -+ /* bridge max age */ -+ printf(DUMP_FMT(br_name, "bridge_max_age")); -+ printf("%u\n", s.bridge_max_age); -+ -+ /* designated root */ -+ printf(DUMP_FMT(br_name, "designated_root")); -+ printf(BR_ID_FMT "\n", BR_ID_ARGS(s.designated_root)); -+ -+ /* enabled */ -+ printf(DUMP_FMT(br_name, "enabled")); -+ printf("%s\n", BOOL_STR(s.enabled)); -+ -+ /* forward delay */ -+ printf(DUMP_FMT(br_name, "forward_delay")); -+ printf("%u\n", s.forward_delay); -+ -+ /* hello time */ -+ printf(DUMP_FMT(br_name, "hello_time")); -+ printf("%u\n", s.hello_time); -+ -+ /* id */ -+ printf(DUMP_FMT(br_name, "id")); -+ printf(BR_ID_FMT "\n", BR_ID_ARGS(s.bridge_id)); -+ -+ /* max age */ -+ printf(DUMP_FMT(br_name, "max_age")); -+ printf("%u\n", s.max_age); -+ -+ /* protocol version */ -+ printf(DUMP_FMT(br_name, "protocol_version")); -+ printf("%d\n", s.protocol_version); -+ -+ /* root path cost */ -+ printf(DUMP_FMT(br_name, "root_path_cost")); -+ printf("%u\n", s.root_path_cost); -+ -+ /* root port */ -+ printf(DUMP_FMT(br_name, "root_port")); -+ printf("%u\n", s.root_port); -+ -+ /* time since topology change */ -+ printf(DUMP_FMT(br_name, "time_since_topology_change")); -+ printf("%u\n", s.time_since_topology_change); -+ -+ /* topology change */ -+ printf(DUMP_FMT(br_name, "topology_change")); -+ printf("%u\n", s.topology_change); -+ -+ /* topology change count */ -+ printf(DUMP_FMT(br_name, "topology_change_count")); -+ printf("%u\n", s.topology_change_count); -+ -+ /* tx hold count */ -+ printf(DUMP_FMT(br_name, "tx_hold_count")); -+ printf("%u\n", s.tx_hold_count); -+ -+ return 0; -+} -+ -+static int do_dumpbridgeport(int br_index, const char *pt_name) { -+ STP_PortStatus p; -+ int r = 0; -+ int port_index = get_index_die(pt_name, "port", 0); -+ if (port_index < 0) -+ return -1; -+ -+ r = CTL_get_port_status(br_index, port_index, &p); -+ if (r) { -+ fprintf(stderr, "Failed to get port state for port %d\n", port_index); -+ return -1; -+ } -+ -+ /* admin edge port */ -+ printf(DUMP_FMT(pt_name, "admin_edge_port")); -+ printf("%s\n", BOOL_STR(p.admin_edge_port)); -+ -+ /* admin point to point */ -+ printf(DUMP_FMT(pt_name, "admin_point_to_point")); -+ printf("%s\n", BOOL_STR(p.admin_p2p)); -+ -+ /* auto edge port */ -+ printf(DUMP_FMT(pt_name, "auto_edge_port")); -+ printf("%s\n", BOOL_STR(p.auto_edge_port)); -+ -+ /* path cost */ -+ printf(DUMP_FMT(pt_name, "admin_path_cost")); -+ printf("%d\n", p.admin_path_cost); -+ -+ /* designated bridge */ -+ printf(DUMP_FMT(pt_name, "designated_bridge")); -+ printf(BR_ID_FMT "\n", BR_ID_ARGS(p.designated_bridge)); -+ -+ /* designated cost */ -+ printf(DUMP_FMT(pt_name, "designated_cost")); -+ printf("%d\n", p.designated_cost); -+ -+ /* designated port */ -+ printf(DUMP_FMT(pt_name, "designated_port")); -+ printf("%0x\n", p.designated_port); -+ -+ /* designated root */ -+ printf(DUMP_FMT(pt_name, "designated_root")); -+ printf(BR_ID_FMT "\n", BR_ID_ARGS(p.designated_root)); -+ -+ /* enabled */ -+ printf(DUMP_FMT(pt_name, "enabled")); -+ printf("%s\n", BOOL_STR(p.enabled)); -+ -+ /* id */ -+ printf(DUMP_FMT(pt_name, "id")); -+ printf("%u\n", p.id & 0xfff); -+ -+ /* oper edge port */ -+ printf(DUMP_FMT(pt_name, "oper_edge_port")); -+ printf("%s\n", BOOL_STR(p.oper_edge_port)); -+ -+ /* path cost */ -+ printf(DUMP_FMT(pt_name, "path_cost")); -+ printf("%d\n", p.path_cost); -+ -+ /* point to point */ -+ printf(DUMP_FMT(pt_name, "point_to_point")); -+ printf("%s\n", BOOL_STR(p.oper_p2p)); -+ -+ /* state */ -+ printf(DUMP_FMT(pt_name, "state")); -+ printf(STATE_STR(p.state)); -+ printf("\n"); -+ -+ /* topology change ack */ -+ printf(DUMP_FMT(pt_name, "topology_change_ack")); -+ printf("%s\n", BOOL_STR(p.tc_ack)); -+ -+ return 0; -+} -+ -+static int cmd_dumpbridge(int argc, char *const *argv) -+{ -+ int i, count = 0; -+ int r = 0; -+ struct dirent **namelist; -+ -+ if (argc > 1) { -+ count = argc - 1; -+ } else { -+ count = -+ scandir(SYSFS_CLASS_NET, &namelist, isbridge, alphasort); -+ if (count < 0) { -+ fprintf(stderr, "Error getting list of all bridges\n"); -+ return -1; -+ } -+ } -+ -+ for (i = 0; i < count; i++) { -+ const char *name; -+ if (argc > 1) -+ name = argv[i + 1]; -+ else -+ name = namelist[i]->d_name; -+ -+ int err = do_dumpbridge(name); -+ if (err) -+ r = err; -+ } -+ -+ if (argc <= 1) { -+ for (i = 0; i < count; i++) -+ free(namelist[i]); -+ free(namelist); -+ } -+ -+ return r; -+} -+ -+static int cmd_dumpbridgeports(int argc, char *const *argv) -+{ -+ int r = 0; -+ -+ int br_index = get_index(argv[1], "bridge"); -+ -+ int i, count = 0; -+ struct dirent **namelist; -+ -+ if (argc > 2) { -+ count = argc - 2; -+ } else { -+ char buf[SYSFS_PATH_MAX]; -+ snprintf(buf, sizeof(buf), SYSFS_CLASS_NET "/%s/brif", argv[1]); -+ count = scandir(buf, &namelist, not_dot_dotdot, alphasort); -+ if (count < 0) { -+ fprintf(stderr, -+ "Error getting list of all ports of bridge %s\n", -+ argv[1]); -+ return -1; -+ } -+ } -+ -+ for (i = 0; i < count; i++) { -+ const char *name; -+ name = namelist[i]->d_name; -+ -+ int err = do_dumpbridgeport(br_index, name); -+ if (err) -+ r = err; -+ } -+ -+ for (i = 0; i < count; i++) -+ free(namelist[i]); -+ free(namelist); -+ -+ return r; -+} -+ - struct command { - int nargs; - int optargs; -@@ -483,6 +717,10 @@ static const struct command commands[] = { - {2, 0, "portmcheck", cmd_portmcheck, - "<bridge> <port>\ttry to get back from STP to RSTP mode"}, - {1, 0, "debuglevel", cmd_debuglevel, "<level>\t\tLevel of verbosity"}, -+ {0, 32, "dumpbridge", cmd_dumpbridge, -+ "Dump all information about a bridge in machine parseable format"}, -+ {1, 0, "dumpports", cmd_dumpbridgeports, -+ "Dump all port information in machine parseable format"}, - }; - - const struct command *command_lookup(const char *cmd) -diff --git a/rstpctl.8 b/rstpctl.8 -index ca72eaf..f827c85 100644 ---- a/rstpctl.8 -+++ b/rstpctl.8 -@@ -115,6 +115,13 @@ switch back to RSTP mode. - .B rstpctl debuglevel <level> - sets the level of verbosity of rstpd's logging. - -+.B rstpctl dumpbridge [<bridge> ...] -+dumps all informational parameters to the console. This is needed to -+parse the output in shell scripts for example. -+ -+.B rstpctl dumpports <bridge> [<port> ...] -+like dumpbridge but prints information about the ports of a bridge. -+ - .SH NOTES - TODO: Indicate lack of persistence of configuration across restarts of - daemon. diff --git a/rstp/patches/rstp-0.21-netlink-fix.patch b/rstp/patches/rstp-0.21-netlink-fix.patch deleted file mode 100644 index b834791..0000000 --- a/rstp/patches/rstp-0.21-netlink-fix.patch +++ /dev/null @@ -1,27 +0,0 @@ -From 434d24bae108dbb21461a13a4abcf014afa8b029 Mon Sep 17 00:00:00 2001 -From: Stephen Hemminger <shemminger(a)vyatta.com> -Date: Tue, 11 Oct 2011 16:07:27 -0700 -Subject: [PATCH] fix bridge port state in netlink message - -The IFLA_PROTINFO is a u8 not u32, and sending a bigger value -to kernel means extra bytes are ignored, leaving state as always 0. ---- - brstate.c | 2 +- - 1 files changed, 1 insertions(+), 1 deletions(-) - -diff --git a/brstate.c b/brstate.c -index 1fe792e..889c2ea 100644 ---- a/brstate.c -+++ b/brstate.c -@@ -42,7 +42,7 @@ static int br_set_state(struct rtnl_handle *rth, unsigned ifindex, __u8 state) - req.ifi.ifi_family = AF_BRIDGE; - req.ifi.ifi_index = ifindex; - -- addattr32(&req.n, sizeof(req.buf), IFLA_PROTINFO, state); -+ addattr_l(&req.n, sizeof(req.buf), IFLA_PROTINFO, &state, sizeof(state)); - - return rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL); - } --- -1.7.6.2 - diff --git a/rstp/rstp.nm b/rstp/rstp.nm deleted file mode 100644 index 9903d1e..0000000 --- a/rstp/rstp.nm +++ /dev/null @@ -1,52 +0,0 @@ -############################################################################### -# IPFire.org - An Open Source Firewall Solution # -# Copyright (C) - IPFire Development Team <info(a)ipfire.org> # -############################################################################### - -name = rstp -version = 0.21 -release = 8 - -groups = Networking/Tools -url = http://git.ipfire.org/?p=thirdparty/rstp.git;a=summary -license = GPLv2+ -summary = Rapid Spanning Tree Protocol for Linux Ethernet bridge. - -description - Rapid Spanning Tree Protocol for Linux Ethernet bridge. -end - -build - prepare_cmds - sed -i Makefile \ - -e "s/-Werror//" \ - -e "s/^CFLAGS =/CFLAGS = %{CFLAGS}/g" - end - - install - make install INSTALLPREFIX=%{BUILDROOT} - - rm -vf %{BUILDROOT}/sbin/bridge-stp - end -end - -packages - package %{name} - requires = network - - script postin - /bin/systemctl daemon-reload >/dev/null 2>&1 || : - /bin/systemctl --no-reload enable rstp.service >/dev/null 2>&1 || : - end - - script preun - /bin/systemctl --no-reload disable rstp.service >/dev/null 2>&1 || : - /bin/systemctl stop rstp.service >/dev/null 2>&1 || : - end - - script postup - /bin/systemctl daemon-reload >/dev/null 2>&1 || : - /bin/systemctl try-restart rstp.service >/dev/null 2>&1 || : - end - end -end diff --git a/rstp/systemd/rstp.service b/rstp/systemd/rstp.service deleted file mode 100644 index b9d6021..0000000 --- a/rstp/systemd/rstp.service +++ /dev/null @@ -1,10 +0,0 @@ -[Unit] -Description=Rapid Spanning Tree Protocol Daemon -Before=network.service - -[Service] -RemainAfterExit=yes -ExecStart=/sbin/rstpd -d - -[Install] -WantedBy=multi-user.target 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. 0f64d6ce1647a27c6249639d230c2e1af52b93a7
by git＠ipfire.org 23 Nov '11

23 Nov '11

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 0f64d6ce1647a27c6249639d230c2e1af52b93a7 (commit) from 9fa0fb55b55a55fc4b3a092ccb8000a5011ad2d9 (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 0f64d6ce1647a27c6249639d230c2e1af52b93a7 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 23:15:25 2011 +0100 binutils: Update to 2.22. Fixes #294. ----------------------------------------------------------------------- Summary of changes: binutils/binutils.nm | 4 +- ...inutils-2.20.51.0.2-pt-pax-flags-20091010.patch | 238 --- .../patches/binutils-2.22-flexible-tests.patch | 45 + .../binutils-2.22-pt-pax-flags-20111121.patch | 1859 ++++++++++++++++++++ ...trel.patch => binutils-2.22-warn-textrel.patch} | 55 +- 5 files changed, 1921 insertions(+), 280 deletions(-) delete mode 100644 binutils/patches/binutils-2.20.51.0.2-pt-pax-flags-20091010.patch create mode 100644 binutils/patches/binutils-2.22-flexible-tests.patch create mode 100644 binutils/patches/binutils-2.22-pt-pax-flags-20111121.patch rename binutils/patches/{binutils-2.20.1-gentoo-warn-textrel.patch => binutils-2.22-warn-textrel.patch} (57%) Difference in files: diff --git a/binutils/binutils.nm b/binutils/binutils.nm index cb5546c..0fd97de 100644 --- a/binutils/binutils.nm +++ b/binutils/binutils.nm @@ -4,8 +4,8 @@ ############################################################################### name = binutils -version = 2.21.51.0.8 -release = 5 +version = 2.22 +release = 1 maintainer = Michael Tremer <michael.tremer(a)ipfire.org> groups = Development/Tools diff --git a/binutils/patches/binutils-2.20.1-gentoo-warn-textrel.patch b/binutils/patches/binutils-2.20.1-gentoo-warn-textrel.patch deleted file mode 100644 index c8783a2..0000000 --- a/binutils/patches/binutils-2.20.1-gentoo-warn-textrel.patch +++ /dev/null @@ -1,85 +0,0 @@ -textrels are bad for forcing copy-on-write (this affects everyone), -and for security/runtime code generation, this affects security ppl. -But in either case, it doesn't matter who needs textrels, it's -the very fact that they're needed at all. - -2006-06-10 Ned Ludd <solar(a)gentoo.org>, Mike Frysinger <vapier(a)gentoo.org> - - * bfd/elflink.c (bfd_elf_final_link): Check all objects for TEXTRELs. - * ld/ldmain.c (main): Change textrel warning default to true. - * ld/testsuite/lib/ld-lib.exp (default_ld_simple_link): Scrub TEXTREL - warnings from ld output. - ---- binutils/bfd/elflink.c -+++ binutils/bfd/elflink.c -@@ -8652,14 +8652,12 @@ - goto error_return; - - /* Check for DT_TEXTREL (late, in case the backend removes it). */ -- if (info->warn_shared_textrel && info->shared) -+ o = bfd_get_section_by_name (dynobj, ".dynamic"); -+ if (info->warn_shared_textrel && o != NULL) - { - bfd_byte *dyncon, *dynconend; - - /* Fix up .dynamic entries. */ -- o = bfd_get_section_by_name (dynobj, ".dynamic"); -- BFD_ASSERT (o != NULL); -- - dyncon = o->contents; - dynconend = o->contents + o->size; - for (; dyncon < dynconend; dyncon += bed->s->sizeof_dyn) -@@ -8702,7 +8702,7 @@ bfd_elf_final_link (bfd *abfd, struct bf - if (dyn.d_tag == DT_TEXTREL) - { - info->callbacks->einfo -- (_("%P: warning: creating a DT_TEXTREL in a shared object.\n")); -+ (_("%P: warning: creating a DT_TEXTREL in object.\n")); - break; - } - } ---- binutils/ld/ldmain.c -+++ binutils/ld/ldmain.c -@@ -282,2 +282,3 @@ - link_info.spare_dynamic_tags = 5; -+ link_info.warn_shared_textrel = TRUE; - link_info.sharable_sections = FALSE; ---- binutils/ld/testsuite/lib/ld-lib.exp -+++ binutils/ld/testsuite/lib/ld-lib.exp -@@ -181,6 +181,10 @@ proc default_ld_simple_link { ld target - # symbol, since the default linker script might use ENTRY. - regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output - -+ # Gentoo tweak: -+ # We want to ignore TEXTREL warnings since we force enable them by default -+ regsub -all "^.*ld-new: warning: creating a DT_TEXTREL in object\." $exec_output "\\1" exec_output -+ - if [string match "" $exec_output] then { - return 1 - } else { -@@ -899,6 +903,10 @@ - remote_file build delete "ld.tmp" - set cmdret [lindex $cmdret 0] - -+ # Gentoo tweak: -+ # We want to ignore TEXTREL warnings since we force enable them by default -+ regsub -all "^.*ld-new: warning: creating a DT_TEXTREL in object\." $comp_output "\\1" comp_output -+ - if { $cmdret == 0 && $run_objcopy } { - set infile $objfile - set objfile "tmpdir/dump1" - -this sucks, but the warn test explicitly checks for textrels, and we -change/filter that output with the above hunks - ---- binutils/ld/testsuite/ld-i386/i386.exp -+++ binutils/ld/testsuite/ld-i386/i386.exp -@@ -176,7 +176,7 @@ - run_dump_test "pcrel16" - run_dump_test "pcrel16abs" - run_dump_test "alloc" --run_dump_test "warn1" -+#run_dump_test "warn1" - run_dump_test "tlsgd2" - run_dump_test "tlsie2" - run_dump_test "tlsie3" diff --git a/binutils/patches/binutils-2.20.51.0.2-pt-pax-flags-20091010.patch b/binutils/patches/binutils-2.20.51.0.2-pt-pax-flags-20091010.patch deleted file mode 100644 index 460484b..0000000 --- a/binutils/patches/binutils-2.20.51.0.2-pt-pax-flags-20091010.patch +++ /dev/null @@ -1,238 +0,0 @@ ---- binutils-2.20/bfd/elf-bfd.h -+++ binutils-2.20/bfd/elf-bfd.h -@@ -1527,6 +1527,9 @@ struct elf_obj_tdata - /* Segment flags for the PT_GNU_STACK segment. */ - unsigned int stack_flags; - -+ /* Segment flags for the PT_PAX_FLAGS segment. */ -+ unsigned int pax_flags; -+ - /* Symbol version definitions in external objects. */ - Elf_Internal_Verdef *verdef; - ---- binutils-2.20/bfd/elf.c -+++ binutils-2.20/bfd/elf.c -@@ -1081,6 +1081,7 @@ get_segment_type (unsigned int p_type) - case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; - case PT_GNU_STACK: pt = "STACK"; break; - case PT_GNU_RELRO: pt = "RELRO"; break; -+ case PT_PAX_FLAGS: pt = "PAX_FLAGS"; break; - default: pt = NULL; break; - } - return pt; -@@ -2379,6 +2380,9 @@ bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int index) - case PT_GNU_RELRO: - return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "relro"); - -+ case PT_PAX_FLAGS: -+ return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "pax_flags"); -+ - default: - /* Check for any processor-specific program segment types. */ - bed = get_elf_backend_data (abfd); -@@ -3393,6 +3397,11 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info) - ++segs; - } - -+ { -+ /* We need a PT_PAX_FLAGS segment. */ -+ ++segs; -+ } -+ - for (s = abfd->sections; s != NULL; s = s->next) - { - if ((s->flags & SEC_LOAD) != 0 -@@ -3972,6 +3981,20 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) - } - } - -+ { -+ amt = sizeof (struct elf_segment_map); -+ m = bfd_zalloc (abfd, amt); -+ if (m == NULL) -+ goto error_return; -+ m->next = NULL; -+ m->p_type = PT_PAX_FLAGS; -+ m->p_flags = elf_tdata (abfd)->pax_flags; -+ m->p_flags_valid = 1; -+ -+ *pm = m; -+ pm = &m->next; -+ } -+ - free (sections); - elf_tdata (abfd)->segment_map = mfirst; - } -@@ -5176,7 +5199,8 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) - 6. PT_TLS segment includes only SHF_TLS sections. - 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. - 8. PT_DYNAMIC should not contain empty sections at the beginning -- (with the possible exception of .dynamic). */ -+ (with the possible exception of .dynamic). -+ 9. PT_PAX_FLAGS segments do not include any sections. */ - #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ - ((((segment->p_paddr \ - ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ -@@ -5184,6 +5208,7 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) - && (section->flags & SEC_ALLOC) != 0) \ - || IS_NOTE (segment, section)) \ - && segment->p_type != PT_GNU_STACK \ -+ && segment->p_type != PT_PAX_FLAGS \ - && (segment->p_type != PT_TLS \ - || (section->flags & SEC_THREAD_LOCAL)) \ - && (segment->p_type == PT_LOAD \ ---- binutils-2.20/bfd/elflink.c -+++ binutils-2.20/bfd/elflink.c -@@ -5465,16 +5465,30 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd, - return TRUE; - - bed = get_elf_backend_data (output_bfd); -+ -+ elf_tdata (output_bfd)->pax_flags = PF_NORANDEXEC; -+ if (info->execheap) -+ elf_tdata (output_bfd)->pax_flags |= PF_NOMPROTECT; -+ else if (info->noexecheap) -+ elf_tdata (output_bfd)->pax_flags |= PF_MPROTECT; -+ - if (info->execstack) -- elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; -+ { -+ elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; -+ elf_tdata (output_bfd)->pax_flags |= PF_EMUTRAMP; -+ } - else if (info->noexecstack) -- elf_tdata (output_bfd)->stack_flags = PF_R | PF_W; -+ { -+ elf_tdata (output_bfd)->stack_flags = PF_R | PF_W; -+ elf_tdata (output_bfd)->pax_flags |= PF_NOEMUTRAMP; -+ } - else - { - bfd *inputobj; - asection *notesec = NULL; - int exec = 0; - -+ elf_tdata (output_bfd)->pax_flags |= PF_NOEMUTRAMP; - for (inputobj = info->input_bfds; - inputobj; - inputobj = inputobj->link_next) -@@ -5487,7 +5501,11 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd, - if (s) - { - if (s->flags & SEC_CODE) -- exec = PF_X; -+ { -+ elf_tdata (output_bfd)->pax_flags &= ~PF_NOEMUTRAMP; -+ elf_tdata (output_bfd)->pax_flags |= PF_EMUTRAMP; -+ exec = PF_X; -+ } - notesec = s; - } - else if (bed->default_execstack) ---- binutils-2.20/binutils/readelf.c -+++ binutils-2.20/binutils/readelf.c -@@ -2556,6 +2556,7 @@ get_segment_type (unsigned long p_type) - return "GNU_EH_FRAME"; - case PT_GNU_STACK: return "GNU_STACK"; - case PT_GNU_RELRO: return "GNU_RELRO"; -+ case PT_PAX_FLAGS: return "PAX_FLAGS"; - - default: - if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC)) ---- binutils-2.20/include/bfdlink.h -+++ binutils-2.20/include/bfdlink.h -@@ -319,6 +319,14 @@ struct bfd_link_info - /* TRUE if PT_GNU_RELRO segment should be created. */ - unsigned int relro: 1; - -+ /* TRUE if PT_PAX_FLAGS segment should be created with PF_NOMPROTECT -+ flags. */ -+ unsigned int execheap: 1; -+ -+ /* TRUE if PT_PAX_FLAGS segment should be created with PF_MPROTECT -+ flags. */ -+ unsigned int noexecheap: 1; -+ - /* TRUE if we should warn when adding a DT_TEXTREL to a shared object. */ - unsigned int warn_shared_textrel: 1; - ---- binutils-2.20/include/elf/common.h -+++ binutils-2.20/include/elf/common.h -@@ -422,6 +422,7 @@ - #define PT_GNU_STACK (PT_LOOS + 0x474e551) /* Stack flags */ - #define PT_GNU_RELRO (PT_LOOS + 0x474e552) /* Read-only after relocation */ - #define PT_GNU_SHR (PT_LOOS + 0x474e554) /* Sharable segment */ -+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580) /* PaX flags */ - - /* Program segment permissions, in program header p_flags field. */ - -@@ -432,6 +433,21 @@ - #define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ - #define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ - -+/* Flags to control PaX behavior. */ -+ -+#define PF_PAGEEXEC (1 << 4) /* Enable PAGEEXEC */ -+#define PF_NOPAGEEXEC (1 << 5) /* Disable PAGEEXEC */ -+#define PF_SEGMEXEC (1 << 6) /* Enable SEGMEXEC */ -+#define PF_NOSEGMEXEC (1 << 7) /* Disable SEGMEXEC */ -+#define PF_MPROTECT (1 << 8) /* Enable MPROTECT */ -+#define PF_NOMPROTECT (1 << 9) /* Disable MPROTECT */ -+#define PF_RANDEXEC (1 << 10) /* Enable RANDEXEC */ -+#define PF_NORANDEXEC (1 << 11) /* Disable RANDEXEC */ -+#define PF_EMUTRAMP (1 << 12) /* Enable EMUTRAMP */ -+#define PF_NOEMUTRAMP (1 << 13) /* Disable EMUTRAMP */ -+#define PF_RANDMMAP (1 << 14) /* Enable RANDMMAP */ -+#define PF_NORANDMMAP (1 << 15) /* Disable RANDMMAP */ -+ - /* Values for section header, sh_type field. */ - - #define SHT_NULL 0 /* Section header table entry unused */ ---- binutils-2.20/ld/emultempl/elf32.em -+++ binutils-2.20/ld/emultempl/elf32.em -@@ -2159,6 +2159,16 @@ fragment <<EOF - link_info.noexecstack = TRUE; - link_info.execstack = FALSE; - } -+ else if (strcmp (optarg, "execheap") == 0) -+ { -+ link_info.execheap = TRUE; -+ link_info.noexecheap = FALSE; -+ } -+ else if (strcmp (optarg, "noexecheap") == 0) -+ { -+ link_info.noexecheap = TRUE; -+ link_info.execheap = FALSE; -+ } - EOF - - if test -n "$COMMONPAGESIZE"; then -@@ -2237,6 +2247,8 @@ fragment <<EOF - fprintf (file, _("\ - -z execstack Mark executable as requiring executable stack\n")); - fprintf (file, _("\ -+ -z execheap Mark executable as requiring executable heap\n")); -+ fprintf (file, _("\ - -z initfirst Mark DSO to be initialized first at runtime\n")); - fprintf (file, _("\ - -z interpose Mark object to interpose all DSOs but executable\n")); -@@ -2260,6 +2272,8 @@ fragment <<EOF - -z nodump Mark DSO not available to dldump\n")); - fprintf (file, _("\ - -z noexecstack Mark executable as not requiring executable stack\n")); -+ fprintf (file, _("\ -+ -z noexecheap Mark executable as not requiring executable heap\n")); - EOF - - if test -n "$COMMONPAGESIZE"; then ---- binutils-2.20/ld/ldgram.y -+++ binutils-2.20/ld/ldgram.y -@@ -1116,6 +1116,8 @@ phdr_type: - $$ = exp_intop (0x6474e550); - else if (strcmp (s, "PT_GNU_STACK") == 0) - $$ = exp_intop (0x6474e551); -+ else if (strcmp (s, "PT_PAX_FLAGS") == 0) -+ $$ = exp_intop (0x65041580); - else - { - einfo (_("\ diff --git a/binutils/patches/binutils-2.22-flexible-tests.patch b/binutils/patches/binutils-2.22-flexible-tests.patch new file mode 100644 index 0000000..681d33f --- /dev/null +++ b/binutils/patches/binutils-2.22-flexible-tests.patch @@ -0,0 +1,45 @@ +making some of the address matches more flexible fixes tests when using +pax/relro/hash patches + +--- binutils/ld/testsuite/ld-i386/hidden2.d ++++ binutils/ld/testsuite/ld-i386/hidden2.d +@@ -8,6 +8,6 @@ + Disassembly of section .text: + + [a-f0-9]+ <bar>: +-[ ]*[a-f0-9]+: e8 cf fe ff ff call 0 .* ++[ ]*[a-f0-9]+: e8 ([a-f0-9]{2} ){2}ff ff call 0 .* + [ ]*[a-f0-9]+: c3 ret + #pass +--- binutils/ld/testsuite/ld-x86-64/hidden2.d ++++ binutils/ld/testsuite/ld-x86-64/hidden2.d +@@ -8,6 +8,6 @@ + Disassembly of section .text: + + [a-f0-9]+ <bar>: +-[ ]*[a-f0-9]+: e8 33 fe ff ff callq 0 .* ++[ ]*[a-f0-9]+: e8 ([a-f0-9]{2} ){2}ff ff callq 0 .* + [ ]*[a-f0-9]+: c3 retq + #pass +--- binutils/ld/testsuite/ld-ifunc/ifunc-2-local-x86-64.d ++++ binutils/ld/testsuite/ld-ifunc/ifunc-2-local-x86-64.d +@@ -4,6 +4,6 @@ + #target: x86_64-*-* + + #... +-[ \t0-9a-f]+:[ \t0-9a-f]+call[ \t0-9a-fq]+<\*ABS\*\+0x220@plt> +-[ \t0-9a-f]+:[ \t0-9a-f]+lea[ \t]+.*$%rip$,%rax.*[ \t0-9a-fq]+<\*ABS\*\+0x220@plt> ++[ \t0-9a-f]+:[ \t0-9a-f]+call[ \t0-9a-fq]+<\*ABS\*\+0x[a-f0-9]+@plt> ++[ \t0-9a-f]+:[ \t0-9a-f]+lea[ \t]+.*$%rip$,%rax.*[ \t0-9a-fq]+<\*ABS\*\+0x[a-f0-9]+@plt> + #pass +--- binutils/ld/testsuite/ld-ifunc/ifunc-2-x86-64.d ++++ binutils/ld/testsuite/ld-ifunc/ifunc-2-x86-64.d +@@ -4,6 +4,6 @@ + #target: x86_64-*-* + + #... +-[ \t0-9a-f]+:[ \t0-9a-f]+call[ \t0-9a-fq]+<\*ABS\*\+0x220@plt> +-[ \t0-9a-f]+:[ \t0-9a-f]+lea[ \t]+.*$%rip$,%rax.*[ \t0-9a-fq]+<\*ABS\*\+0x220@plt> ++[ \t0-9a-f]+:[ \t0-9a-f]+call[ \t0-9a-fq]+<\*ABS\*\+0x[a-f0-9]+@plt> ++[ \t0-9a-f]+:[ \t0-9a-f]+lea[ \t]+.*$%rip$,%rax.*[ \t0-9a-fq]+<\*ABS\*\+0x[a-f0-9]+@plt> + #pass diff --git a/binutils/patches/binutils-2.22-pt-pax-flags-20111121.patch b/binutils/patches/binutils-2.22-pt-pax-flags-20111121.patch new file mode 100644 index 0000000..3ba1a87 --- /dev/null +++ b/binutils/patches/binutils-2.22-pt-pax-flags-20111121.patch @@ -0,0 +1,1859 @@ +--- binutils-2.22/bfd/elf-bfd.h ++++ binutils-2.22/bfd/elf-bfd.h +@@ -1577,6 +1577,9 @@ struct elf_obj_tdata + /* Segment flags for the PT_GNU_STACK segment. */ + unsigned int stack_flags; + ++ /* Segment flags for the PT_PAX_FLAGS segment. */ ++ unsigned int pax_flags; ++ + /* Symbol version definitions in external objects. */ + Elf_Internal_Verdef *verdef; + +--- binutils-2.22/bfd/elf.c ++++ binutils-2.22/bfd/elf.c +@@ -1158,6 +1158,7 @@ get_segment_type (unsigned int p_type) + case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; + case PT_GNU_STACK: pt = "STACK"; break; + case PT_GNU_RELRO: pt = "RELRO"; break; ++ case PT_PAX_FLAGS: pt = "PAX_FLAGS"; break; + default: pt = NULL; break; + } + return pt; +@@ -2477,6 +2478,9 @@ bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) + case PT_GNU_RELRO: + return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); + ++ case PT_PAX_FLAGS: ++ return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "pax_flags"); ++ + default: + /* Check for any processor-specific program segment types. */ + bed = get_elf_backend_data (abfd); +@@ -3551,6 +3555,11 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info) + ++segs; + } + ++ { ++ /* We need a PT_PAX_FLAGS segment. */ ++ ++segs; ++ } ++ + for (s = abfd->sections; s != NULL; s = s->next) + { + if ((s->flags & SEC_LOAD) != 0 +@@ -4153,6 +4162,20 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) + } + } + ++ { ++ amt = sizeof (struct elf_segment_map); ++ m = bfd_zalloc (abfd, amt); ++ if (m == NULL) ++ goto error_return; ++ m->next = NULL; ++ m->p_type = PT_PAX_FLAGS; ++ m->p_flags = elf_tdata (abfd)->pax_flags; ++ m->p_flags_valid = 1; ++ ++ *pm = m; ++ pm = &m->next; ++ } ++ + free (sections); + elf_tdata (abfd)->segment_map = mfirst; + } +@@ -5417,7 +5440,8 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) + 6. PT_TLS segment includes only SHF_TLS sections. + 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. + 8. PT_DYNAMIC should not contain empty sections at the beginning +- (with the possible exception of .dynamic). */ ++ (with the possible exception of .dynamic). ++ 9. PT_PAX_FLAGS segments do not include any sections. */ + #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ + ((((segment->p_paddr \ + ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ +@@ -5425,6 +5449,7 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd) + && (section->flags & SEC_ALLOC) != 0) \ + || IS_NOTE (segment, section)) \ + && segment->p_type != PT_GNU_STACK \ ++ && segment->p_type != PT_PAX_FLAGS \ + && (segment->p_type != PT_TLS \ + || (section->flags & SEC_THREAD_LOCAL)) \ + && (segment->p_type == PT_LOAD \ +--- binutils-2.22/bfd/elflink.c ++++ binutils-2.22/bfd/elflink.c +@@ -5545,16 +5545,30 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd, + return TRUE; + + bed = get_elf_backend_data (output_bfd); ++ ++ elf_tdata (output_bfd)->pax_flags = PF_NORANDEXEC; ++ if (info->execheap) ++ elf_tdata (output_bfd)->pax_flags |= PF_NOMPROTECT; ++ else if (info->noexecheap) ++ elf_tdata (output_bfd)->pax_flags |= PF_MPROTECT; ++ + if (info->execstack) +- elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; ++ { ++ elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; ++ elf_tdata (output_bfd)->pax_flags |= PF_EMUTRAMP; ++ } + else if (info->noexecstack) +- elf_tdata (output_bfd)->stack_flags = PF_R | PF_W; ++ { ++ elf_tdata (output_bfd)->stack_flags = PF_R | PF_W; ++ elf_tdata (output_bfd)->pax_flags |= PF_NOEMUTRAMP; ++ } + else + { + bfd *inputobj; + asection *notesec = NULL; + int exec = 0; + ++ elf_tdata (output_bfd)->pax_flags |= PF_NOEMUTRAMP; + for (inputobj = info->input_bfds; + inputobj; + inputobj = inputobj->link_next) +@@ -5567,7 +5581,11 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd, + if (s) + { + if (s->flags & SEC_CODE) +- exec = PF_X; ++ { ++ elf_tdata (output_bfd)->pax_flags &= ~PF_NOEMUTRAMP; ++ elf_tdata (output_bfd)->pax_flags |= PF_EMUTRAMP; ++ exec = PF_X; ++ } + notesec = s; + } + else if (bed->default_execstack) +--- binutils-2.22/binutils/readelf.c ++++ binutils-2.22/binutils/readelf.c +@@ -2740,6 +2740,7 @@ get_segment_type (unsigned long p_type) + return "GNU_EH_FRAME"; + case PT_GNU_STACK: return "GNU_STACK"; + case PT_GNU_RELRO: return "GNU_RELRO"; ++ case PT_PAX_FLAGS: return "PAX_FLAGS"; + + default: + if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC)) +--- binutils-2.22/include/bfdlink.h ++++ binutils-2.22/include/bfdlink.h +@@ -322,6 +322,14 @@ struct bfd_link_info + /* TRUE if PT_GNU_RELRO segment should be created. */ + unsigned int relro: 1; + ++ /* TRUE if PT_PAX_FLAGS segment should be created with PF_NOMPROTECT ++ flags. */ ++ unsigned int execheap: 1; ++ ++ /* TRUE if PT_PAX_FLAGS segment should be created with PF_MPROTECT ++ flags. */ ++ unsigned int noexecheap: 1; ++ + /* TRUE if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment + should be created. */ + unsigned int eh_frame_hdr: 1; +--- binutils-2.22/include/elf/common.h ++++ binutils-2.22/include/elf/common.h +@@ -429,6 +429,7 @@ + #define PT_SUNW_EH_FRAME PT_GNU_EH_FRAME /* Solaris uses the same value */ + #define PT_GNU_STACK (PT_LOOS + 0x474e551) /* Stack flags */ + #define PT_GNU_RELRO (PT_LOOS + 0x474e552) /* Read-only after relocation */ ++#define PT_PAX_FLAGS (PT_LOOS + 0x5041580) /* PaX flags */ + + /* Program segment permissions, in program header p_flags field. */ + +@@ -439,6 +440,21 @@ + #define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */ + #define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ + ++/* Flags to control PaX behavior. */ ++ ++#define PF_PAGEEXEC (1 << 4) /* Enable PAGEEXEC */ ++#define PF_NOPAGEEXEC (1 << 5) /* Disable PAGEEXEC */ ++#define PF_SEGMEXEC (1 << 6) /* Enable SEGMEXEC */ ++#define PF_NOSEGMEXEC (1 << 7) /* Disable SEGMEXEC */ ++#define PF_MPROTECT (1 << 8) /* Enable MPROTECT */ ++#define PF_NOMPROTECT (1 << 9) /* Disable MPROTECT */ ++#define PF_RANDEXEC (1 << 10) /* Enable RANDEXEC */ ++#define PF_NORANDEXEC (1 << 11) /* Disable RANDEXEC */ ++#define PF_EMUTRAMP (1 << 12) /* Enable EMUTRAMP */ ++#define PF_NOEMUTRAMP (1 << 13) /* Disable EMUTRAMP */ ++#define PF_RANDMMAP (1 << 14) /* Enable RANDMMAP */ ++#define PF_NORANDMMAP (1 << 15) /* Disable RANDMMAP */ ++ + /* Values for section header, sh_type field. */ + + #define SHT_NULL 0 /* Section header table entry unused */ +--- binutils-2.22/ld/emultempl/elf32.em ++++ binutils-2.22/ld/emultempl/elf32.em +@@ -2285,6 +2285,16 @@ fragment <<EOF + link_info.noexecstack = TRUE; + link_info.execstack = FALSE; + } ++ else if (strcmp (optarg, "execheap") == 0) ++ { ++ link_info.execheap = TRUE; ++ link_info.noexecheap = FALSE; ++ } ++ else if (strcmp (optarg, "noexecheap") == 0) ++ { ++ link_info.noexecheap = TRUE; ++ link_info.execheap = FALSE; ++ } + EOF + if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then + fragment <<EOF +@@ -2368,6 +2378,8 @@ fragment <<EOF + -z defs Report unresolved symbols in object files.\n")); + fprintf (file, _("\ + -z execstack Mark executable as requiring executable stack\n")); ++ fprintf (file, _("\ ++ -z execheap Mark executable as requiring executable heap\n")); + EOF + + if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then +@@ -2391,6 +2403,8 @@ fragment <<EOF + fragment <<EOF + fprintf (file, _("\ + -z noexecstack Mark executable as not requiring executable stack\n")); ++ fprintf (file, _("\ ++ -z noexecheap Mark executable as not requiring executable heap\n")); + EOF + if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then + fragment <<EOF +--- binutils-2.22/ld/ldgram.y ++++ binutils-2.22/ld/ldgram.y +@@ -1119,6 +1119,8 @@ phdr_type: + $$ = exp_intop (0x6474e550); + else if (strcmp (s, "PT_GNU_STACK") == 0) + $$ = exp_intop (0x6474e551); ++ else if (strcmp (s, "PT_PAX_FLAGS") == 0) ++ $$ = exp_intop (0x65041580); + else + { + einfo (_("\ +--- binutils-2.22/ld/testsuite/ld-alpha/tlsbin.rd ++++ binutils-2.22/ld/testsuite/ld-alpha/tlsbin.rd +@@ -35,13 +35,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +- PHDR +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+150 R E 0x8 ++ PHDR +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+188 R E 0x8 + INTERP +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x1 + .*Requesting program interpreter.* + LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x10000 + LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RWE 0x10000 + DYNAMIC +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW +0x8 + TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 3 entries: +--- binutils-2.22/ld/testsuite/ld-alpha/tlsbinr.rd ++++ binutils-2.22/ld/testsuite/ld-alpha/tlsbinr.rd +@@ -42,6 +42,7 @@ Program Headers: + +LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RWE 0x10000 + +DYNAMIC +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW +0x8 + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 2 entries: +--- binutils-2.22/ld/testsuite/ld-alpha/tlspic.rd ++++ binutils-2.22/ld/testsuite/ld-alpha/tlspic.rd +@@ -38,6 +38,7 @@ Program Headers: + +LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RWE 0x10000 + +DYNAMIC +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW +0x8 + +TLS +0x0+10e0 0x0+110e0 0x0+110e0 0x0+60 0x0+80 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 7 entries: +--- binutils-2.22/ld/testsuite/ld-elf/eh1.d ++++ binutils-2.22/ld/testsuite/ld-elf/eh1.d +@@ -22,11 +22,11 @@ Contents of the .eh_frame section: + DW_CFA_nop + DW_CFA_nop + +-00000018 0000001c 0000001c FDE cie=00000000 pc=00400078..00400078 +- DW_CFA_advance_loc: 0 to 00400078 ++00000018 0000001c 0000001c FDE cie=00000000 pc=([0-9a-f]+)..\1 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_offset: 16 + DW_CFA_offset: r6 $rbp$ at cfa-16 +- DW_CFA_advance_loc: 0 to 00400078 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_register: r6 $rbp$ + + 00000038 ZERO terminator +--- binutils-2.22/ld/testsuite/ld-elf/eh2.d ++++ binutils-2.22/ld/testsuite/ld-elf/eh2.d +@@ -22,11 +22,11 @@ Contents of the .eh_frame section: + DW_CFA_nop + DW_CFA_nop + +-00000018 0000001c 0000001c FDE cie=00000000 pc=00400078..00400078 +- DW_CFA_advance_loc: 0 to 00400078 ++00000018 0000001c 0000001c FDE cie=00000000 pc=([0-9a-f]+)..\1 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_offset: 16 + DW_CFA_offset: r6 $rbp$ at cfa-16 +- DW_CFA_advance_loc: 0 to 00400078 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_register: r6 $rbp$ + + 00000038 ZERO terminator +--- binutils-2.22/ld/testsuite/ld-elf/eh3.d ++++ binutils-2.22/ld/testsuite/ld-elf/eh3.d +@@ -22,11 +22,11 @@ Contents of the .eh_frame section: + DW_CFA_nop + DW_CFA_nop + +-00000018 0000001c 0000001c FDE cie=00000000 pc=00400078..00400078 +- DW_CFA_advance_loc: 0 to 00400078 ++00000018 0000001c 0000001c FDE cie=00000000 pc=([0-9a-f]+)..\1 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_offset: 16 + DW_CFA_offset: r6 $rbp$ at cfa-16 +- DW_CFA_advance_loc: 0 to 00400078 ++ DW_CFA_advance_loc: 0 to [0-9a-f]+ + DW_CFA_def_cfa_register: r6 $rbp$ + + 00000038 ZERO terminator +--- binutils-2.22/ld/testsuite/ld-elf/orphan-region.d ++++ binutils-2.22/ld/testsuite/ld-elf/orphan-region.d +@@ -15,7 +15,9 @@ + Program Headers: + Type.* + LOAD[ \t]+0x[0-9a-f]+ 0x0*40000000 0x0*40000000 0x[0-9a-f]+ 0x[0-9a-f]+ RWE 0x[0-9a-f]+ ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + Segment Sections... + 00 .text .rodata .moredata * ++ 01 + +--- binutils-2.22/ld/testsuite/ld-i386/tlsbin.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsbin.rd +@@ -44,6 +44,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+60 0x0+a0 R +0x1000 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -53,6 +54,7 @@ Program Headers: + +03 +.tdata .dynamic .got .got.plt * + +04 +.dynamic * + +05 +.tdata .tbss * ++ +06 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 9 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-i386/tlsbindesc.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsbindesc.rd +@@ -42,6 +42,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+60 0x0+a0 R +0x1000 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -51,6 +52,7 @@ Program Headers: + +03 +.tdata .dynamic .got .got.plt * + +04 +.dynamic * + +05 +.tdata .tbss * ++ +06 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 9 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-i386/tlsdesc.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsdesc.rd +@@ -39,6 +39,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+60 0x0+80 R +0x1 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -46,6 +47,7 @@ Program Headers: + +01 +.tdata .dynamic .got .got.plt * + +02 +.dynamic * + +03 +.tdata .tbss * ++ +04 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 20 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-i386/tlsdesc.sd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsdesc.sd +@@ -14,7 +14,7 @@ Contents of section \.got: + [0-9a-f]+ 6c000000 b4ffffff 4c000000 68000000 .* + [0-9a-f]+ 50000000 70000000 00000000 bcffffff .* + Contents of section \.got\.plt: +- [0-9a-f]+ b0150000 00000000 00000000 00000000 .* ++ [0-9a-f]+ [a-f]0150000 00000000 00000000 00000000 .* + [0-9a-f]+ 20000000 00000000 60000000 00000000 .* + [0-9a-f]+ 00000000 00000000 00000000 00000000 .* + [0-9a-f]+ 40000000 +.* +--- binutils-2.22/ld/testsuite/ld-i386/tlsgdesc.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsgdesc.rd +@@ -36,12 +36,14 @@ Program Headers: + +LOAD.* + +LOAD.* + +DYNAMIC.* ++ +PAX_FLAGS.* + + Section to Segment mapping: + +Segment Sections... + +00 +.hash .dynsym .dynstr .rel.dyn .rel.plt .plt .text * + +01 +.dynamic .got .got.plt * + +02 +.dynamic * ++ +03 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 8 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-i386/tlsnopic.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlsnopic.rd +@@ -37,6 +37,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+ 0x0+24 R +0x1 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -44,6 +45,7 @@ Program Headers: + +01 +.dynamic .got .got.plt * + +02 +.dynamic * + +03 +.tbss * ++ +04 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 20 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-i386/tlspic.rd ++++ binutils-2.22/ld/testsuite/ld-i386/tlspic.rd +@@ -40,6 +40,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+60 0x0+80 R +0x1 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -47,6 +48,7 @@ Program Headers: + +01 +.tdata .dynamic .got .got.plt * + +02 +.dynamic * + +03 +.tdata .tbss * ++ +04 + + + Relocation section '.rel.dyn' at offset 0x[0-9a-f]+ contains 26 entries: + Offset +Info +Type +Sym.Value +Sym. Name +--- binutils-2.22/ld/testsuite/ld-ia64/merge1.d ++++ binutils-2.22/ld/testsuite/ld-ia64/merge1.d +@@ -4,7 +4,7 @@ + #objdump: -d + + #... +-0+1e0 <.text>: ++[a-f0-9]+ <.text>: + [ ]*[a-f0-9]+: 0b 60 80 02 00 24 \[MMI\] addl r12=32,r1;; + [ ]*[a-f0-9]+: c0 c0 04 00 48 00 addl r12=24,r1 + [ ]*[a-f0-9]+: 00 00 04 00 nop.i 0x0;; +--- binutils-2.22/ld/testsuite/ld-ia64/merge2.d ++++ binutils-2.22/ld/testsuite/ld-ia64/merge2.d +@@ -4,7 +4,7 @@ + #objdump: -d + + #... +-0+1e0 <.text>: ++[a-f0-9]+ <.text>: + [ ]*[a-f0-9]+: 0b 60 80 02 00 24 \[MMI\] addl r12=32,r1;; + [ ]*[a-f0-9]+: c0 c0 04 00 48 00 addl r12=24,r1 + [ ]*[a-f0-9]+: 00 00 04 00 nop.i 0x0;; +--- binutils-2.22/ld/testsuite/ld-ia64/merge3.d ++++ binutils-2.22/ld/testsuite/ld-ia64/merge3.d +@@ -4,7 +4,7 @@ + #objdump: -d + + #... +-0+210 <.text>: ++[a-f0-9]+ <.text>: + [ ]*[a-f0-9]+: 0b 60 80 02 00 24 \[MMI\] addl r12=32,r1;; + [ ]*[a-f0-9]+: c0 40 05 00 48 00 addl r12=40,r1 + [ ]*[a-f0-9]+: 00 00 04 00 nop.i 0x0;; +--- binutils-2.22/ld/testsuite/ld-ia64/merge4.d ++++ binutils-2.22/ld/testsuite/ld-ia64/merge4.d +@@ -4,7 +4,7 @@ + #objdump: -d + + #... +-0+240 <.text>: ++[a-f0-9]+ <.text>: + [ ]*[a-f0-9]+: 0b 60 80 02 00 24 \[MMI\] addl r12=32,r1;; + [ ]*[a-f0-9]+: c0 40 05 00 48 00 addl r12=40,r1 + [ ]*[a-f0-9]+: 00 00 04 00 nop.i 0x0;; +--- binutils-2.22/ld/testsuite/ld-ia64/merge5.d ++++ binutils-2.22/ld/testsuite/ld-ia64/merge5.d +@@ -4,7 +4,7 @@ + #objdump: -d + + #... +-0+270 <.text>: ++[a-f0-9]+ <.text>: + [ ]*[a-f0-9]+: 0b 60 80 02 00 24 \[MMI\] addl r12=32,r1;; + [ ]*[a-f0-9]+: c0 40 05 00 48 00 addl r12=40,r1 + [ ]*[a-f0-9]+: 00 00 04 00 nop.i 0x0;; +--- binutils-2.22/ld/testsuite/ld-ia64/tlsbin.rd ++++ binutils-2.22/ld/testsuite/ld-ia64/tlsbin.rd +@@ -36,13 +36,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +- +PHDR +0x0+40 0x40+40 0x40+40 0x0+188 0x0+188 R E 0x8 +- +INTERP +0x0+1c8 0x40+1c8 0x40+1c8 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x1 ++ +PHDR +0x0+40 0x40+40 0x40+40 (0x[0-9a-f]+) \1 R E 0x8 ++ +INTERP +0x0+([0-9a-f]+) (0x40+\1) \2 0x[0-9a-f]+ 0x[0-9a-f]+ R +0x1 + .*Requesting program interpreter.* + +LOAD +0x0+ 0x40+ 0x40+ 0x0+1[0-9a-f]+ 0x0+1[0-9a-f]+ R E 0x10000 + +LOAD +0x0+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x0+0[0-9a-f]+ 0x0+0[0-9a-f]+ RW +0x10000 + +DYNAMIC +0x0+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x0+150 0x0+150 RW +0x8 + +TLS +0x0+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x60+1[0-9a-f]+ 0x0+60 0x0+a0 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + +IA_64_UNWIND .* R +0x8 + #... + +--- binutils-2.22/ld/testsuite/ld-ia64/tlspic.rd ++++ binutils-2.22/ld/testsuite/ld-ia64/tlspic.rd +@@ -40,6 +40,7 @@ Program Headers: + +LOAD +0x0+1[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+0[0-9a-f]+ 0x0+0[0-9a-f]+ RW +0x10000 + +DYNAMIC +0x0+1[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+140 0x0+140 RW +0x8 + +TLS +0x0+1[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+11[0-9a-f]+ 0x0+60 0x0+80 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + +IA_64_UNWIND +0x0+1[0-9a-f]+ 0x0+1[0-9a-f]+ 0x0+1[0-9a-f]+ 0x0+18 0x0+18 R +0x8 + #... + +--- binutils-2.22/ld/testsuite/ld-mips-elf/multi-got-no-shared.d ++++ binutils-2.22/ld/testsuite/ld-mips-elf/multi-got-no-shared.d +@@ -8,9 +8,9 @@ + .*: +file format.* + + Disassembly of section \.text: +-004000b0 <[^>]*> 3c1c0043 lui gp,0x43 +-004000b4 <[^>]*> 279c9ff0 addiu gp,gp,-24592 +-004000b8 <[^>]*> afbc0008 sw gp,8$sp$ ++004000d0 <[^>]*> 3c1c0043 lui gp,0x43 ++004000d4 <[^>]*> 279c9ff0 addiu gp,gp,-24592 ++004000d8 <[^>]*> afbc0008 sw gp,8$sp$ + #... + 00408d60 <[^>]*> 3c1c0043 lui gp,0x43 + 00408d64 <[^>]*> 279c2c98 addiu gp,gp,11416 +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.sd +@@ -1,7 +1,7 @@ + + Elf file type is DYN $Shared object file$ + Entry point .* +-There are 5 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -9,6 +9,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+00000 * 0x0+00000 [^ ]+ * [^ ]+ * R E * 0x.* + * LOAD * [^ ]+ * 0x0+10000 * 0x0+10000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+00400 * 0x0+00400 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -18,3 +19,4 @@ Program Headers: + *0*2 * \.data \.got * + *0*3 * \.dynamic * + *0*4 * ++ *0*5 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 8 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -13,6 +13,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -25,3 +26,4 @@ Program Headers: + *0*5 *\.got \.data * + *0*6 *\.dynamic * + *0*7 * ++ *0*8 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-4b.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-4b.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 8 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -13,6 +13,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -25,3 +26,4 @@ Program Headers: + *0*5 * \.got \.data \.bss * + *0*6 * \.dynamic * + *0*7 * ++ *0*8 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-5b.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-5b.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 8 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -13,6 +13,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -25,3 +26,4 @@ Program Headers: + *0*5 * \.got \.data \.bss * + *0*6 * \.dynamic * + *0*7 * ++ *0*8 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 8 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -13,6 +13,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -25,3 +26,4 @@ Program Headers: + *0*5 * \.got \.data \.bss * + *0*6 * \.dynamic * + *0*7 * ++ *0*8 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 7 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -12,6 +12,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -23,3 +24,4 @@ Program Headers: + *0*4 * \.got \.data \.bss * + *0*5 * \.dynamic * + *0*6 * ++ *0*7 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.sd ++++ binutils-2.22/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.sd +@@ -1,7 +1,7 @@ + + Elf file type is EXEC $Executable file$ + Entry point 0x44000 +-There are 8 program headers, starting at offset .* ++There are [0-9] program headers, starting at offset .* + + Program Headers: + * Type * Offset * VirtAddr * PhysAddr * FileSiz * MemSiz * Flg * Align +@@ -13,6 +13,7 @@ Program Headers: + * LOAD * [^ ]+ * 0x0+80000 * 0x0+80000 [^ ]+ * [^ ]+ * RW * 0x.* + * LOAD * [^ ]+ * 0x0+a0000 * 0x0+a0000 [^ ]+ * [^ ]+ * RW * 0x.* + * DYNAMIC * [^ ]+ * 0x0+42000 * 0x0+42000 .* ++ * PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + * NULL * .* + + *Section to Segment mapping: +@@ -25,3 +26,4 @@ Program Headers: + *0*5 * \.got \.data \.bss * + *0*6 * \.dynamic * + *0*7 * ++ *0*8 * +--- binutils-2.22/ld/testsuite/ld-mips-elf/rel32-n32.d ++++ binutils-2.22/ld/testsuite/ld-mips-elf/rel32-n32.d +@@ -10,6 +10,6 @@ Relocation section '.rel.dyn' at offset .* contains 2 entries: + [0-9a-f ]+R_MIPS_REL32 + + Hex dump of section '.text': +- 0x000002e0 00000000 00000000 00000000 00000000 ................ +- 0x000002f0 000002f0 00000000 00000000 00000000 ................ + 0x00000300 00000000 00000000 00000000 00000000 ................ ++ 0x00000310 00000310 00000000 00000000 00000000 ................ ++ 0x00000320 00000000 00000000 00000000 00000000 ................ +--- binutils-2.22/ld/testsuite/ld-mips-elf/rel32-o32.d ++++ binutils-2.22/ld/testsuite/ld-mips-elf/rel32-o32.d +@@ -10,6 +10,6 @@ Relocation section '.rel.dyn' at offset .* contains 2 entries: + [0-9a-f ]+R_MIPS_REL32 + + Hex dump of section '.text': +- 0x000002e0 00000000 00000000 00000000 00000000 ................ +- 0x000002f0 000002f0 00000000 00000000 00000000 ................ + 0x00000300 00000000 00000000 00000000 00000000 ................ ++ 0x00000310 00000310 00000000 00000000 00000000 ................ ++ 0x00000320 00000000 00000000 00000000 00000000 ................ +--- binutils-2.22/ld/testsuite/ld-mips-elf/rel64.d ++++ binutils-2.22/ld/testsuite/ld-mips-elf/rel64.d +@@ -14,6 +14,6 @@ Relocation section '.rel.dyn' at offset .* contains 2 entries: + +Type3: R_MIPS_NONE + + Hex dump of section '.text': +- 0x00000450 00000000 00000000 00000000 00000000 ................ +- 0x00000460 00000000 00000460 00000000 00000000 ................ +- 0x00000470 00000000 00000000 00000000 00000000 ................ ++ 0x00000490 00000000 00000000 00000000 00000000 ................ ++ 0x000004a0 00000000 000004a0 00000000 00000000 ................ ++ 0x000004b0 00000000 00000000 00000000 00000000 ................ +--- binutils-2.22/ld/testsuite/ld-mips-elf/tlsbin-o32.d ++++ binutils-2.22/ld/testsuite/ld-mips-elf/tlsbin-o32.d +@@ -2,42 +2,42 @@ + + Disassembly of section .text: + +-004000d0 <__start>: +- 4000d0: 3c1c0fc0 lui gp,0xfc0 +- 4000d4: 279c7f30 addiu gp,gp,32560 +- 4000d8: 0399e021 addu gp,gp,t9 +- 4000dc: 27bdfff0 addiu sp,sp,-16 +- 4000e0: afbe0008 sw s8,8$sp$ +- 4000e4: 03a0f021 move s8,sp +- 4000e8: afbc0000 sw gp,0$sp$ +- 4000ec: 8f998018 lw t9,-32744$gp$ +- 4000f0: 27848028 addiu a0,gp,-32728 +- 4000f4: 0320f809 jalr t9 +- 4000f8: 00000000 nop +- 4000fc: 8fdc0000 lw gp,0$s8$ +- 400100: 00000000 nop +- 400104: 8f998018 lw t9,-32744$gp$ +- 400108: 27848020 addiu a0,gp,-32736 +- 40010c: 0320f809 jalr t9 +- 400110: 00000000 nop +- 400114: 8fdc0000 lw gp,0$s8$ +- 400118: 00401021 move v0,v0 +- 40011c: 3c030000 lui v1,0x0 +- 400120: 24638000 addiu v1,v1,-32768 +- 400124: 00621821 addu v1,v1,v0 +- 400128: 7c02283b rdhwr v0,\$5 +- 40012c: 8f83801c lw v1,-32740$gp$ +- 400130: 00000000 nop +- 400134: 00621821 addu v1,v1,v0 +- 400138: 7c02283b rdhwr v0,\$5 +- 40013c: 3c030000 lui v1,0x0 +- 400140: 24639004 addiu v1,v1,-28668 +- 400144: 00621821 addu v1,v1,v0 +- 400148: 03c0e821 move sp,s8 +- 40014c: 8fbe0008 lw s8,8$sp$ +- 400150: 03e00008 jr ra +- 400154: 27bd0010 addiu sp,sp,16 ++00400[0-9a-f]{3} <__start>: ++ 400[0-9a-f]{3}: 3c1c0fc0 lui gp,0xfc0 ++ 400[0-9a-f]{3}: 279c7f30 addiu gp,gp,32560 ++ 400[0-9a-f]{3}: 0399e021 addu gp,gp,t9 ++ 400[0-9a-f]{3}: 27bdfff0 addiu sp,sp,-16 ++ 400[0-9a-f]{3}: afbe0008 sw s8,8$sp$ ++ 400[0-9a-f]{3}: 03a0f021 move s8,sp ++ 400[0-9a-f]{3}: afbc0000 sw gp,0$sp$ ++ 400[0-9a-f]{3}: 8f998018 lw t9,-32744$gp$ ++ 400[0-9a-f]{3}: 27848028 addiu a0,gp,-32728 ++ 400[0-9a-f]{3}: 0320f809 jalr t9 ++ 400[0-9a-f]{3}: 00000000 nop ++ 400[0-9a-f]{3}: 8fdc0000 lw gp,0$s8$ ++ 400[0-9a-f]{3}: 00000000 nop ++ 400[0-9a-f]{3}: 8f998018 lw t9,-32744$gp$ ++ 400[0-9a-f]{3}: 27848020 addiu a0,gp,-32736 ++ 400[0-9a-f]{3}: 0320f809 jalr t9 ++ 400[0-9a-f]{3}: 00000000 nop ++ 400[0-9a-f]{3}: 8fdc0000 lw gp,0$s8$ ++ 400[0-9a-f]{3}: 00401021 move v0,v0 ++ 400[0-9a-f]{3}: 3c030000 lui v1,0x0 ++ 400[0-9a-f]{3}: 24638000 addiu v1,v1,-32768 ++ 400[0-9a-f]{3}: 00621821 addu v1,v1,v0 ++ 400[0-9a-f]{3}: 7c02283b rdhwr v0,\$5 ++ 400[0-9a-f]{3}: 8f83801c lw v1,-32740$gp$ ++ 400[0-9a-f]{3}: 00000000 nop ++ 400[0-9a-f]{3}: 00621821 addu v1,v1,v0 ++ 400[0-9a-f]{3}: 7c02283b rdhwr v0,\$5 ++ 400[0-9a-f]{3}: 3c030000 lui v1,0x0 ++ 400[0-9a-f]{3}: 24639004 addiu v1,v1,-28668 ++ 400[0-9a-f]{3}: 00621821 addu v1,v1,v0 ++ 400[0-9a-f]{3}: 03c0e821 move sp,s8 ++ 400[0-9a-f]{3}: 8fbe0008 lw s8,8$sp$ ++ 400[0-9a-f]{3}: 03e00008 jr ra ++ 400[0-9a-f]{3}: 27bd0010 addiu sp,sp,16 + +-00400158 <__tls_get_addr>: +- 400158: 03e00008 jr ra +- 40015c: 00000000 nop ++00400[0-9a-f]{3} <__tls_get_addr>: ++ 400[0-9a-f]{3}: 03e00008 jr ra ++ 400[0-9a-f]{3}: 00000000 nop +--- binutils-2.22/ld/testsuite/ld-powerpc/tls.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tls.d +@@ -9,45 +9,45 @@ + + Disassembly of section \.text: + +-0+100000e8 <_start>: +- 100000e8: 3c 6d 00 00 addis r3,r13,0 +- 100000ec: 60 00 00 00 nop +- 100000f0: 38 63 90 78 addi r3,r3,-28552 +- 100000f4: 3c 6d 00 00 addis r3,r13,0 +- 100000f8: 60 00 00 00 nop +- 100000fc: 38 63 10 00 addi r3,r3,4096 +- 10000100: 3c 6d 00 00 addis r3,r13,0 +- 10000104: 60 00 00 00 nop +- 10000108: 38 63 90 40 addi r3,r3,-28608 +- 1000010c: 3c 6d 00 00 addis r3,r13,0 +- 10000110: 60 00 00 00 nop +- 10000114: 38 63 10 00 addi r3,r3,4096 +- 10000118: 39 23 80 48 addi r9,r3,-32696 +- 1000011c: 3d 23 00 00 addis r9,r3,0 +- 10000120: 81 49 80 50 lwz r10,-32688$r9$ +- 10000124: e9 22 80 10 ld r9,-32752$r2$ +- 10000128: 7d 49 18 2a ldx r10,r9,r3 +- 1000012c: 3d 2d 00 00 addis r9,r13,0 +- 10000130: a1 49 90 60 lhz r10,-28576$r9$ +- 10000134: 89 4d 90 68 lbz r10,-28568$r13$ +- 10000138: 3d 2d 00 00 addis r9,r13,0 +- 1000013c: 99 49 90 70 stb r10,-28560$r9$ +- 10000140: 3c 6d 00 00 addis r3,r13,0 +- 10000144: 60 00 00 00 nop +- 10000148: 38 63 90 00 addi r3,r3,-28672 +- 1000014c: 3c 6d 00 00 addis r3,r13,0 +- 10000150: 60 00 00 00 nop +- 10000154: 38 63 10 00 addi r3,r3,4096 +- 10000158: f9 43 80 08 std r10,-32760$r3$ +- 1000015c: 3d 23 00 00 addis r9,r3,0 +- 10000160: 91 49 80 10 stw r10,-32752$r9$ +- 10000164: e9 22 80 08 ld r9,-32760$r2$ +- 10000168: 7d 49 19 2a stdx r10,r9,r3 +- 1000016c: 3d 2d 00 00 addis r9,r13,0 +- 10000170: b1 49 90 60 sth r10,-28576$r9$ +- 10000174: e9 4d 90 2a lwa r10,-28632$r13$ +- 10000178: 3d 2d 00 00 addis r9,r13,0 +- 1000017c: a9 49 90 30 lha r10,-28624$r9$ ++0+10000[0-9a-f]{3} <_start>: ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 78 addi r3,r3,-28552 ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 40 addi r3,r3,-28608 ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 10000[0-9a-f]{3}: 39 23 80 48 addi r9,r3,-32696 ++ 10000[0-9a-f]{3}: 3d 23 00 00 addis r9,r3,0 ++ 10000[0-9a-f]{3}: 81 49 80 50 lwz r10,-32688$r9$ ++ 10000[0-9a-f]{3}: e9 22 80 10 ld r9,-32752$r2$ ++ 10000[0-9a-f]{3}: 7d 49 18 2a ldx r10,r9,r3 ++ 10000[0-9a-f]{3}: 3d 2d 00 00 addis r9,r13,0 ++ 10000[0-9a-f]{3}: a1 49 90 60 lhz r10,-28576$r9$ ++ 10000[0-9a-f]{3}: 89 4d 90 68 lbz r10,-28568$r13$ ++ 10000[0-9a-f]{3}: 3d 2d 00 00 addis r9,r13,0 ++ 10000[0-9a-f]{3}: 99 49 90 70 stb r10,-28560$r9$ ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 00 addi r3,r3,-28672 ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 10000[0-9a-f]{3}: f9 43 80 08 std r10,-32760$r3$ ++ 10000[0-9a-f]{3}: 3d 23 00 00 addis r9,r3,0 ++ 10000[0-9a-f]{3}: 91 49 80 10 stw r10,-32752$r9$ ++ 10000[0-9a-f]{3}: e9 22 80 08 ld r9,-32760$r2$ ++ 10000[0-9a-f]{3}: 7d 49 19 2a stdx r10,r9,r3 ++ 10000[0-9a-f]{3}: 3d 2d 00 00 addis r9,r13,0 ++ 10000[0-9a-f]{3}: b1 49 90 60 sth r10,-28576$r9$ ++ 10000[0-9a-f]{3}: e9 4d 90 2a lwa r10,-28632$r13$ ++ 10000[0-9a-f]{3}: 3d 2d 00 00 addis r9,r13,0 ++ 10000[0-9a-f]{3}: a9 49 90 30 lha r10,-28624$r9$ + +-0+10000180 <\.__tls_get_addr>: +- 10000180: 4e 80 00 20 blr ++0+10000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr +--- binutils-2.22/ld/testsuite/ld-powerpc/tls.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tls.g +@@ -8,5 +8,5 @@ + .*: +file format elf64-powerpc + + Contents of section \.got: +- 100101e0 00000000 100181e0 ffffffff ffff8018 .* +- 100101f0 ffffffff ffff8058 .* ++ 10010([0-9a-f]{3}) 00000000 10018\1 ffffffff ffff8018 .* ++ 10010[0-9a-f]{3} ffffffff ffff8058 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tls32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tls32.d +@@ -9,42 +9,42 @@ + + Disassembly of section \.text: + +-0+1800094 <_start>: +- 1800094: 3c 62 00 00 addis r3,r2,0 +- 1800098: 38 63 90 3c addi r3,r3,-28612 +- 180009c: 3c 62 00 00 addis r3,r2,0 +- 18000a0: 38 63 10 00 addi r3,r3,4096 +- 18000a4: 3c 62 00 00 addis r3,r2,0 +- 18000a8: 38 63 90 20 addi r3,r3,-28640 +- 18000ac: 3c 62 00 00 addis r3,r2,0 +- 18000b0: 38 63 10 00 addi r3,r3,4096 +- 18000b4: 39 23 80 24 addi r9,r3,-32732 +- 18000b8: 3d 23 00 00 addis r9,r3,0 +- 18000bc: 81 49 80 28 lwz r10,-32728$r9$ +- 18000c0: 3d 22 00 00 addis r9,r2,0 +- 18000c4: a1 49 90 30 lhz r10,-28624$r9$ +- 18000c8: 89 42 90 34 lbz r10,-28620$r2$ +- 18000cc: 3d 22 00 00 addis r9,r2,0 +- 18000d0: 99 49 90 38 stb r10,-28616$r9$ +- 18000d4: 3c 62 00 00 addis r3,r2,0 +- 18000d8: 38 63 90 00 addi r3,r3,-28672 +- 18000dc: 3c 62 00 00 addis r3,r2,0 +- 18000e0: 38 63 10 00 addi r3,r3,4096 +- 18000e4: 91 43 80 04 stw r10,-32764$r3$ +- 18000e8: 3d 23 00 00 addis r9,r3,0 +- 18000ec: 91 49 80 08 stw r10,-32760$r9$ +- 18000f0: 3d 22 00 00 addis r9,r2,0 +- 18000f4: b1 49 90 30 sth r10,-28624$r9$ +- 18000f8: a1 42 90 14 lhz r10,-28652$r2$ +- 18000fc: 3d 22 00 00 addis r9,r2,0 +- 1800100: a9 49 90 18 lha r10,-28648$r9$ ++0+1800[0-9a-f]{3} <_start>: ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 90 3c addi r3,r3,-28612 ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 90 20 addi r3,r3,-28640 ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 1800[0-9a-f]{3}: 39 23 80 24 addi r9,r3,-32732 ++ 1800[0-9a-f]{3}: 3d 23 00 00 addis r9,r3,0 ++ 1800[0-9a-f]{3}: 81 49 80 28 lwz r10,-32728$r9$ ++ 1800[0-9a-f]{3}: 3d 22 00 00 addis r9,r2,0 ++ 1800[0-9a-f]{3}: a1 49 90 30 lhz r10,-28624$r9$ ++ 1800[0-9a-f]{3}: 89 42 90 34 lbz r10,-28620$r2$ ++ 1800[0-9a-f]{3}: 3d 22 00 00 addis r9,r2,0 ++ 1800[0-9a-f]{3}: 99 49 90 38 stb r10,-28616$r9$ ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 90 00 addi r3,r3,-28672 ++ 1800[0-9a-f]{3}: 3c 62 00 00 addis r3,r2,0 ++ 1800[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 1800[0-9a-f]{3}: 91 43 80 04 stw r10,-32764$r3$ ++ 1800[0-9a-f]{3}: 3d 23 00 00 addis r9,r3,0 ++ 1800[0-9a-f]{3}: 91 49 80 08 stw r10,-32760$r9$ ++ 1800[0-9a-f]{3}: 3d 22 00 00 addis r9,r2,0 ++ 1800[0-9a-f]{3}: b1 49 90 30 sth r10,-28624$r9$ ++ 1800[0-9a-f]{3}: a1 42 90 14 lhz r10,-28652$r2$ ++ 1800[0-9a-f]{3}: 3d 22 00 00 addis r9,r2,0 ++ 1800[0-9a-f]{3}: a9 49 90 18 lha r10,-28648$r9$ + +-0+1800104 <__tls_get_addr>: +- 1800104: 4e 80 00 20 blr ++0+1800[0-9a-f]{3} <__tls_get_addr>: ++ 1800[0-9a-f]{3}: 4e 80 00 20 blr + Disassembly of section \.got: + +-0+1810128 <_GLOBAL_OFFSET_TABLE_-0x4>: +- 1810128: 4e 80 00 21 blrl ++0+1810[0-9a-f]{3} <_GLOBAL_OFFSET_TABLE_-0x4>: ++ 1810[0-9a-f]{3}: 4e 80 00 21 blrl + +-0+181012c <_GLOBAL_OFFSET_TABLE_>: ++0+1810[0-9a-f]{3} <_GLOBAL_OFFSET_TABLE_>: + \.\.\. +--- binutils-2.22/ld/testsuite/ld-powerpc/tls32.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tls32.g +@@ -8,4 +8,4 @@ + .*: +file format elf32-powerpc + + Contents of section \.got: +- 1810128 4e800021 00000000 00000000 00000000 .* ++ 18101[0-9a-f]{2} 4e800021 00000000 00000000 00000000 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tls32.t ++++ binutils-2.22/ld/testsuite/ld-powerpc/tls32.t +@@ -8,5 +8,5 @@ + .*: +file format elf32-powerpc + + Contents of section \.tdata: +- 1810108 12345678 23456789 3456789a 456789ab .* +- 1810118 56789abc 6789abcd 789abcde 00c0ffee .* ++ 18101[0-9a-f]{2} 12345678 23456789 3456789a 456789ab .* ++ 18101[0-9a-f]{2} 56789abc 6789abcd 789abcde 00c0ffee .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.d +@@ -44,4 +44,4 @@ Disassembly of section \.got: + .*: 4e 80 00 21 blrl + + .* <_GLOBAL_OFFSET_TABLE_>: +-.*: 01 81 02 b8 00 00 00 00 00 00 00 00 .* ++.*: 01 81 02 [bd]8 00 00 00 00 00 00 00 00 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.g +@@ -8,4 +8,4 @@ + + Contents of section \.got: + .* 00000000 00000000 00000000 4e800021 .* +-.* 018102b8 00000000 00000000 .* ++.* 018102[bd]8 00000000 00000000 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.r ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsexe32.r +@@ -33,13 +33,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz MemSiz +Flg Align +- +PHDR +0x000034 0x01800034 0x01800034 0x000c0 0x000c0 R E 0x4 +- +INTERP +0x0000f4 0x018000f4 0x018000f4 0x00011 0x00011 R +0x1 ++ +PHDR +0x000034 0x01800034 0x01800034 (0x000[0-9a-f]{2}) \1 R E 0x4 ++ +INTERP +0x000([0-9a-f]{3}) 0x01800\1 0x01800\1 0x00011 0x00011 R +0x1 + +\[Requesting program interpreter: .*\] + +LOAD .* R E 0x10000 + +LOAD .* RWE 0x10000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0001c 0x00038 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections\.\.\. +@@ -49,6 +50,7 @@ Program Headers: + +03 +\.tdata \.dynamic \.got \.plt + +04 +\.dynamic + +05 +\.tdata \.tbss ++ +06 + + + Relocation section '\.rela\.dyn' at offset .* contains 2 entries: + Offset +Info +Type +Sym\. Value +Symbol's Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsmark.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsmark.d +@@ -9,29 +9,29 @@ + + Disassembly of section \.text: + +-0+100000e8 <_start>: +- 100000e8: 48 00 00 18 b 10000100 <_start\+0x18> +- 100000ec: 60 00 00 00 nop +- 100000f0: 38 63 90 00 addi r3,r3,-28672 +- 100000f4: e8 83 00 00 ld r4,0$r3$ +- 100000f8: 3c 6d 00 00 addis r3,r13,0 +- 100000fc: 48 00 00 0c b 10000108 <_start\+0x20> +- 10000100: 3c 6d 00 00 addis r3,r13,0 +- 10000104: 4b ff ff e8 b 100000ec <_start\+0x4> +- 10000108: 60 00 00 00 nop +- 1000010c: 38 63 10 00 addi r3,r3,4096 +- 10000110: e8 83 80 00 ld r4,-32768$r3$ +- 10000114: 3c 6d 00 00 addis r3,r13,0 +- 10000118: 48 00 00 0c b 10000124 <_start\+0x3c> +- 1000011c: 3c 6d 00 00 addis r3,r13,0 +- 10000120: 48 00 00 14 b 10000134 <_start\+0x4c> +- 10000124: 60 00 00 00 nop +- 10000128: 38 63 90 04 addi r3,r3,-28668 +- 1000012c: e8 a3 00 00 ld r5,0$r3$ +- 10000130: 4b ff ff ec b 1000011c <_start\+0x34> +- 10000134: 60 00 00 00 nop +- 10000138: 38 63 10 00 addi r3,r3,4096 +- 1000013c: e8 a3 80 04 ld r5,-32764$r3$ ++0+10000[0-9a-f]{3} <_start>: ++ 10000[0-9a-f]{3}: 48 00 00 18 b 10000[0-9a-f]{3} <_start\+0x18> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 00 addi r3,r3,-28672 ++ 10000[0-9a-f]{3}: e8 83 00 00 ld r4,0$r3$ ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 48 00 00 0c b 10000[0-9a-f]{3} <_start\+0x20> ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 4b ff ff e8 b 10000[0-9a-f]{3} <_start\+0x4> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 10000[0-9a-f]{3}: e8 83 80 00 ld r4,-32768$r3$ ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 48 00 00 0c b 10000[0-9a-f]{3} <_start\+0x3c> ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 48 00 00 14 b 10000[0-9a-f]{3} <_start\+0x4c> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 04 addi r3,r3,-28668 ++ 10000[0-9a-f]{3}: e8 a3 00 00 ld r5,0$r3$ ++ 10000[0-9a-f]{3}: 4b ff ff ec b 10000[0-9a-f]{3} <_start\+0x34> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 10 00 addi r3,r3,4096 ++ 10000[0-9a-f]{3}: e8 a3 80 04 ld r5,-32764$r3$ + +-0+10000140 <\.__tls_get_addr>: +- 10000140: 4e 80 00 20 blr ++0+10000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsmark32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsmark32.d +@@ -9,17 +9,17 @@ + + Disassembly of section \.text: + +-0+1800094 <_start>: +- 1800094: 48 00 00 14 b 18000a8 <_start\+0x14> +- 1800098: 38 63 90 00 addi r3,r3,-28672 +- 180009c: 80 83 00 00 lwz r4,0$r3$ +- 18000a0: 3c 62 00 00 addis r3,r2,0 +- 18000a4: 48 00 00 0c b 18000b0 <_start\+0x1c> +- 18000a8: 3c 62 00 00 addis r3,r2,0 +- 18000ac: 4b ff ff ec b 1800098 <_start\+0x4> +- 18000b0: 38 63 10 00 addi r3,r3,4096 +- 18000b4: 80 83 80 00 lwz r4,-32768$r3$ ++0+18000[0-9a-f]{2} <_start>: ++ 18000[0-9a-f]{2}: 48 00 00 14 b 18000[0-9a-f]{2} <_start\+0x14> ++ 18000[0-9a-f]{2}: 38 63 90 00 addi r3,r3,-28672 ++ 18000[0-9a-f]{2}: 80 83 00 00 lwz r4,0$r3$ ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 48 00 00 0c b 18000[0-9a-f]{2} <_start\+0x1c> ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 4b ff ff ec b 18000[0-9a-f]{2} <_start\+0x4> ++ 18000[0-9a-f]{2}: 38 63 10 00 addi r3,r3,4096 ++ 18000[0-9a-f]{2}: 80 83 80 00 lwz r4,-32768$r3$ + +-0+18000b8 <__tls_get_addr>: +- 18000b8: 4e 80 00 20 blr +-#pass +\ No newline at end of file ++0+18000[0-9a-f]{2} <__tls_get_addr>: ++ 18000[0-9a-f]{2}: 4e 80 00 20 blr ++#pass +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt1.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt1.d +@@ -9,17 +9,17 @@ + + Disassembly of section \.text: + +-0+100000e8 <\.__tls_get_addr>: +- 100000e8: 4e 80 00 20 blr ++0+10000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr + + Disassembly of section \.no_opt1: + +-0+100000ec <\.no_opt1>: +- 100000ec: 38 62 80 08 addi r3,r2,-32760 +- 100000f0: 2c 24 00 00 cmpdi r4,0 +- 100000f4: 41 82 00 10 beq- .* +- 100000f8: 4b ff ff f1 bl 100000e8 <\.__tls_get_addr> +- 100000fc: 60 00 00 00 nop +- 10000100: 48 00 00 0c b .* +- 10000104: 4b ff ff e5 bl 100000e8 <\.__tls_get_addr> +- 10000108: 60 00 00 00 nop ++0+10000[0-9a-f]{3} <\.no_opt1>: ++ 10000[0-9a-f]{3}: 38 62 80 08 addi r3,r2,-32760 ++ 10000[0-9a-f]{3}: 2c 24 00 00 cmpdi r4,0 ++ 10000[0-9a-f]{3}: 41 82 00 10 beq- .* ++ 10000[0-9a-f]{3}: 4b ff ff f1 bl 10000[0-9a-f]{3} <\.__tls_get_addr> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 4b ff ff e5 bl 10000[0-9a-f]{3} <\.__tls_get_addr> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt1_32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt1_32.d +@@ -9,16 +9,16 @@ + + Disassembly of section \.text: + +-0+1800094 <__tls_get_addr>: +- 1800094: 4e 80 00 20 blr ++0+18000[0-9a-f]{2} <__tls_get_addr>: ++ 18000[0-9a-f]{2}: 4e 80 00 20 blr + + Disassembly of section \.no_opt1: + +-0+1800098 <\.no_opt1>: +- 1800098: 38 6d ff f4 addi r3,r13,-12 +- 180009c: 2c 04 00 00 cmpwi r4,0 +- 18000a0: 41 82 00 0c beq- .* +- 18000a4: 4b ff ff f1 bl 1800094 <__tls_get_addr> +- 18000a8: 48 00 00 08 b .* +- 18000ac: 4b ff ff e9 bl 1800094 <__tls_get_addr> ++0+18000[0-9a-f]{2} <\.no_opt1>: ++ 18000[0-9a-f]{2}: 38 6d ff f4 addi r3,r13,-12 ++ 18000[0-9a-f]{2}: 2c 04 00 00 cmpwi r4,0 ++ 18000[0-9a-f]{2}: 41 82 00 0c beq- .* ++ 18000[0-9a-f]{2}: 4b ff ff f1 bl 18000[0-9a-f]{2} <__tls_get_addr> ++ 18000[0-9a-f]{2}: 48 00 00 08 b .* ++ 18000[0-9a-f]{2}: 4b ff ff e9 bl 18000[0-9a-f]{2} <__tls_get_addr> + #pass +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt2.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt2.d +@@ -9,15 +9,15 @@ + + Disassembly of section \.text: + +-0+100000e8 <\.__tls_get_addr>: +- 100000e8: 4e 80 00 20 blr ++0+10000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr + + Disassembly of section \.no_opt2: + +-0+100000ec <\.no_opt2>: +- 100000ec: 38 62 80 08 addi r3,r2,-32760 +- 100000f0: 2c 24 00 00 cmpdi r4,0 +- 100000f4: 41 82 00 08 beq- .* +- 100000f8: 38 62 80 08 addi r3,r2,-32760 +- 100000fc: 4b ff ff ed bl 100000e8 <\.__tls_get_addr> +- 10000100: 60 00 00 00 nop ++0+10000[0-9a-f]{3} <\.no_opt2>: ++ 10000[0-9a-f]{3}: 38 62 80 08 addi r3,r2,-32760 ++ 10000[0-9a-f]{3}: 2c 24 00 00 cmpdi r4,0 ++ 10000[0-9a-f]{3}: 41 82 00 08 beq- .* ++ 10000[0-9a-f]{3}: 38 62 80 08 addi r3,r2,-32760 ++ 10000[0-9a-f]{3}: 4b ff ff ed bl 10000[0-9a-f]{3} <\.__tls_get_addr> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt2_32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt2_32.d +@@ -9,15 +9,15 @@ + + Disassembly of section \.text: + +-0+1800094 <__tls_get_addr>: +- 1800094: 4e 80 00 20 blr ++0+18000[0-9a-f]{2} <__tls_get_addr>: ++ 18000[0-9a-f]{2}: 4e 80 00 20 blr + + Disassembly of section \.no_opt2: + +-0+1800098 <\.no_opt2>: +- 1800098: 38 6d ff f4 addi r3,r13,-12 +- 180009c: 2c 04 00 00 cmpwi r4,0 +- 18000a0: 41 82 00 08 beq- .* +- 18000a4: 38 6d ff f4 addi r3,r13,-12 +- 18000a8: 4b ff ff ed bl 1800094 <__tls_get_addr> ++0+18000[0-9a-f]{2} <\.no_opt2>: ++ 18000[0-9a-f]{2}: 38 6d ff f4 addi r3,r13,-12 ++ 18000[0-9a-f]{2}: 2c 04 00 00 cmpwi r4,0 ++ 18000[0-9a-f]{2}: 41 82 00 08 beq- .* ++ 18000[0-9a-f]{2}: 38 6d ff f4 addi r3,r13,-12 ++ 18000[0-9a-f]{2}: 4b ff ff ed bl 18000[0-9a-f]{2} <__tls_get_addr> + #pass +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt3.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt3.d +@@ -9,18 +9,18 @@ + + Disassembly of section \.text: + +-00000000100000e8 <\.__tls_get_addr>: +- 100000e8: 4e 80 00 20 blr ++0000000010000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr + + Disassembly of section \.no_opt3: + +-00000000100000ec <\.no_opt3>: +- 100000ec: 38 62 80 08 addi r3,r2,-32760 +- 100000f0: 48 00 00 0c b .* +- 100000f4: 38 62 80 18 addi r3,r2,-32744 +- 100000f8: 48 00 00 10 b .* +- 100000fc: 4b ff ff ed bl 100000e8 <\.__tls_get_addr> +- 10000100: 60 00 00 00 nop +- 10000104: 48 00 00 0c b .* +- 10000108: 4b ff ff e1 bl 100000e8 <\.__tls_get_addr> +- 1000010c: 60 00 00 00 nop ++0000000010000[0-9a-f]{3} <\.no_opt3>: ++ 10000[0-9a-f]{3}: 38 62 80 08 addi r3,r2,-32760 ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 38 62 80 18 addi r3,r2,-32744 ++ 10000[0-9a-f]{3}: 48 00 00 10 b .* ++ 10000[0-9a-f]{3}: 4b ff ff ed bl 10000[0-9a-f]{3} <\.__tls_get_addr> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 4b ff ff e1 bl 10000[0-9a-f]{3} <\.__tls_get_addr> ++ 10000[0-9a-f]{3}: 60 00 00 00 nop +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt3_32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt3_32.d +@@ -9,17 +9,17 @@ + + Disassembly of section \.text: + +-0+1800094 <__tls_get_addr>: +- 1800094: 4e 80 00 20 blr ++0+18000[0-9a-f]{2} <__tls_get_addr>: ++ 18000[0-9a-f]{2}: 4e 80 00 20 blr + + Disassembly of section \.no_opt3: + +-0+1800098 <\.no_opt3>: +- 1800098: 38 6d ff ec addi r3,r13,-20 +- 180009c: 48 00 00 0c b .* +- 18000a0: 38 6d ff f4 addi r3,r13,-12 +- 18000a4: 48 00 00 0c b .* +- 18000a8: 4b ff ff ed bl 1800094 <__tls_get_addr> +- 18000ac: 48 00 00 08 b .* +- 18000b0: 4b ff ff e5 bl 1800094 <__tls_get_addr> ++0+18000[0-9a-f]{2} <\.no_opt3>: ++ 18000[0-9a-f]{2}: 38 6d ff ec addi r3,r13,-20 ++ 18000[0-9a-f]{2}: 48 00 00 0c b .* ++ 18000[0-9a-f]{2}: 38 6d ff f4 addi r3,r13,-12 ++ 18000[0-9a-f]{2}: 48 00 00 0c b .* ++ 18000[0-9a-f]{2}: 4b ff ff ed bl 18000[0-9a-f]{2} <__tls_get_addr> ++ 18000[0-9a-f]{2}: 48 00 00 08 b .* ++ 18000[0-9a-f]{2}: 4b ff ff e5 bl 18000[0-9a-f]{2} <__tls_get_addr> + #pass +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt4.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt4.d +@@ -9,40 +9,40 @@ + + Disassembly of section \.text: + +-0+100000e8 <\.__tls_get_addr>: +- 100000e8: 4e 80 00 20 blr ++0+10000[0-9a-f]{3} <\.__tls_get_addr>: ++ 10000[0-9a-f]{3}: 4e 80 00 20 blr + + Disassembly of section \.opt1: + +-0+100000ec <\.opt1>: +- 100000ec: 3c 6d 00 00 addis r3,r13,0 +- 100000f0: 2c 24 00 00 cmpdi r4,0 +- 100000f4: 41 82 00 10 beq- .* +- 100000f8: 60 00 00 00 nop +- 100000fc: 38 63 90 10 addi r3,r3,-28656 +- 10000100: 48 00 00 0c b .* +- 10000104: 60 00 00 00 nop +- 10000108: 38 63 90 10 addi r3,r3,-28656 ++0+10000[0-9a-f]{3} <\.opt1>: ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 2c 24 00 00 cmpdi r4,0 ++ 10000[0-9a-f]{3}: 41 82 00 10 beq- .* ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 10 addi r3,r3,-28656 ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 10 addi r3,r3,-28656 + + Disassembly of section \.opt2: + +-0+1000010c <\.opt2>: +- 1000010c: 3c 6d 00 00 addis r3,r13,0 +- 10000110: 2c 24 00 00 cmpdi r4,0 +- 10000114: 41 82 00 08 beq- .* +- 10000118: 3c 6d 00 00 addis r3,r13,0 +- 1000011c: 60 00 00 00 nop +- 10000120: 38 63 90 10 addi r3,r3,-28656 ++0+10000[0-9a-f]{3} <\.opt2>: ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 2c 24 00 00 cmpdi r4,0 ++ 10000[0-9a-f]{3}: 41 82 00 08 beq- .* ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 10 addi r3,r3,-28656 + + Disassembly of section \.opt3: + +-0+10000124 <\.opt3>: +- 10000124: 3c 6d 00 00 addis r3,r13,0 +- 10000128: 48 00 00 0c b .* +- 1000012c: 3c 6d 00 00 addis r3,r13,0 +- 10000130: 48 00 00 10 b .* +- 10000134: 60 00 00 00 nop +- 10000138: 38 63 90 10 addi r3,r3,-28656 +- 1000013c: 48 00 00 0c b .* +- 10000140: 60 00 00 00 nop +- 10000144: 38 63 90 08 addi r3,r3,-28664 ++0+10000[0-9a-f]{3} <\.opt3>: ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 3c 6d 00 00 addis r3,r13,0 ++ 10000[0-9a-f]{3}: 48 00 00 10 b .* ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 10 addi r3,r3,-28656 ++ 10000[0-9a-f]{3}: 48 00 00 0c b .* ++ 10000[0-9a-f]{3}: 60 00 00 00 nop ++ 10000[0-9a-f]{3}: 38 63 90 08 addi r3,r3,-28664 +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsopt4_32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsopt4_32.d +@@ -9,36 +9,36 @@ + + Disassembly of section \.text: + +-0+1800094 <__tls_get_addr>: +- 1800094: 4e 80 00 20 blr ++0+18000[0-9a-f]{2} <__tls_get_addr>: ++ 18000[0-9a-f]{2}: 4e 80 00 20 blr + + Disassembly of section \.opt1: + +-0+1800098 <\.opt1>: +- 1800098: 3c 62 00 00 addis r3,r2,0 +- 180009c: 2c 04 00 00 cmpwi r4,0 +- 18000a0: 41 82 00 0c beq- .* +- 18000a4: 38 63 90 10 addi r3,r3,-28656 +- 18000a8: 48 00 00 08 b .* +- 18000ac: 38 63 90 10 addi r3,r3,-28656 ++0+18000[0-9a-f]{2} <\.opt1>: ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 2c 04 00 00 cmpwi r4,0 ++ 18000[0-9a-f]{2}: 41 82 00 0c beq- .* ++ 18000[0-9a-f]{2}: 38 63 90 10 addi r3,r3,-28656 ++ 18000[0-9a-f]{2}: 48 00 00 08 b .* ++ 18000[0-9a-f]{2}: 38 63 90 10 addi r3,r3,-28656 + + Disassembly of section \.opt2: + +-0+18000b0 <\.opt2>: +- 18000b0: 3c 62 00 00 addis r3,r2,0 +- 18000b4: 2c 04 00 00 cmpwi r4,0 +- 18000b8: 41 82 00 08 beq- .* +- 18000bc: 3c 62 00 00 addis r3,r2,0 +- 18000c0: 38 63 90 10 addi r3,r3,-28656 ++0+18000[0-9a-f]{2} <\.opt2>: ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 2c 04 00 00 cmpwi r4,0 ++ 18000[0-9a-f]{2}: 41 82 00 08 beq- .* ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 38 63 90 10 addi r3,r3,-28656 + + Disassembly of section \.opt3: + +-0+18000c4 <\.opt3>: +- 18000c4: 3c 62 00 00 addis r3,r2,0 +- 18000c8: 48 00 00 0c b .* +- 18000cc: 3c 62 00 00 addis r3,r2,0 +- 18000d0: 48 00 00 0c b .* +- 18000d4: 38 63 90 10 addi r3,r3,-28656 +- 18000d8: 48 00 00 08 b .* +- 18000dc: 38 63 90 08 addi r3,r3,-28664 ++0+18000[0-9a-f]{2} <\.opt3>: ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 48 00 00 0c b .* ++ 18000[0-9a-f]{2}: 3c 62 00 00 addis r3,r2,0 ++ 18000[0-9a-f]{2}: 48 00 00 0c b .* ++ 18000[0-9a-f]{2}: 38 63 90 10 addi r3,r3,-28656 ++ 18000[0-9a-f]{2}: 48 00 00 08 b .* ++ 18000[0-9a-f]{2}: 38 63 90 08 addi r3,r3,-28664 + #pass +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.d ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.d +@@ -42,5 +42,5 @@ Disassembly of section \.got: + .* <\.got>: + \.\.\. + .*: 4e 80 00 21 blrl +-.*: 00 01 03 ec .* ++.*: 00 01 [0-9a-f]{2} [0-9a-f]{2} .* + \.\.\. +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.g +@@ -9,5 +9,5 @@ + Contents of section \.got: + .* 00000000 00000000 00000000 00000000 .* + .* 00000000 00000000 00000000 00000000 .* +-.* 00000000 4e800021 000103ec 00000000 .* ++.* 00000000 4e800021 00010[0-9a-f]{3} 00000000 .* + .* 00000000 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.r ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlsso32.r +@@ -35,6 +35,7 @@ Program Headers: + +LOAD .* RWE 0x10000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0+1c 0x0+38 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections\.\.\. +@@ -42,6 +43,7 @@ Program Headers: + +01 +\.tdata \.dynamic \.got \.plt + +02 +\.dynamic + +03 +\.tdata \.tbss ++ +04 + + + Relocation section '\.rela\.dyn' at offset 0x[0-9a-f]+ contains 18 entries: + Offset +Info +Type +Sym\. Value +Symbol's Name \+ Addend +@@ -52,9 +54,9 @@ Relocation section '\.rela\.dyn' at offset 0x[0-9a-f]+ contains 18 entries: + [0-9a-f ]+R_PPC_TPREL16 +0+30 +le0 \+ 0 + [0-9a-f ]+R_PPC_TPREL16_HA +0+34 +le1 \+ 0 + [0-9a-f ]+R_PPC_TPREL16_LO +0+34 +le1 \+ 0 +-[0-9a-f ]+R_PPC_TPREL16 +0+103d0 +\.tdata \+ 103e4 +-[0-9a-f ]+R_PPC_TPREL16_HA +0+103d0 +\.tdata \+ 103e8 +-[0-9a-f ]+R_PPC_TPREL16_LO +0+103d0 +\.tdata \+ 103e8 ++[0-9a-f ]+R_PPC_TPREL16 +0+103[df]0 +\.tdata \+ 10[0-9a-f]{3} ++[0-9a-f ]+R_PPC_TPREL16_HA +0+103[df]0 +\.tdata \+ 10[0-9a-f]{3} ++[0-9a-f ]+R_PPC_TPREL16_LO +0+103[df]0 +\.tdata \+ 10[0-9a-f]{3} + [0-9a-f ]+R_PPC_DTPMOD32 +0+ + [0-9a-f ]+R_PPC_DTPREL32 +0+ + [0-9a-f ]+R_PPC_DTPMOD32 +0+ +--- binutils-2.22/ld/testsuite/ld-powerpc/tlstoc.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlstoc.g +@@ -8,8 +8,8 @@ + .*: +file format elf64-powerpc + + Contents of section \.got: +- 100101a0 00000000 00000001 00000000 00000000 .* +- 100101b0 00000000 00000001 00000000 00000000 .* +- 100101c0 00000000 00000001 00000000 00000000 .* +- 100101d0 00000000 00000001 00000000 00000000 .* +- 100101e0 ffffffff ffff8060 00000000 00000000 .* ++ 10010[0-9a-f]{3} 00000000 00000001 00000000 00000000 .* ++ 10010[0-9a-f]{3} 00000000 00000001 00000000 00000000 .* ++ 10010[0-9a-f]{3} 00000000 00000001 00000000 00000000 .* ++ 10010[0-9a-f]{3} 00000000 00000001 00000000 00000000 .* ++ 10010[0-9a-f]{3} ffffffff ffff8060 00000000 00000000 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlstoc.t ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlstoc.t +@@ -8,7 +8,7 @@ + .*: +file format elf64-powerpc + + Contents of section \.tdata: +- 10010148 00c0ffee 00000000 12345678 9abcdef0 .* +- 10010158 23456789 abcdef01 3456789a bcdef012 .* +- 10010168 456789ab cdef0123 56789abc def01234 .* +- 10010178 6789abcd ef012345 789abcde f0123456 .* ++ 10010180 00c0ffee 00000000 12345678 9abcdef0 .* ++ 10010190 23456789 abcdef01 3456789a bcdef012 .* ++ 100101a0 456789ab cdef0123 56789abc def01234 .* ++ 100101b0 6789abcd ef012345 789abcde f0123456 .* +--- binutils-2.22/ld/testsuite/ld-powerpc/tlstocso.g ++++ binutils-2.22/ld/testsuite/ld-powerpc/tlstocso.g +@@ -7,7 +7,7 @@ + .*: +file format elf64-powerpc + + Contents of section \.got: +-.* 00000000 000186c0 00000000 00000000 .* ++.* 00000000 000186f8 00000000 00000000 .* + .* 00000000 00000000 00000000 00000000 .* + .* 00000000 00000000 00000000 00000000 .* + .* 00000000 00000000 00000000 00000000 .* +--- binutils-2.22/ld/testsuite/ld-s390/tlsbin.rd ++++ binutils-2.22/ld/testsuite/ld-s390/tlsbin.rd +@@ -36,13 +36,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +- +PHDR +0x0+34 0x0+400034 0x0+400034 0x0+c0 0x0+c0 R E 0x4 +- +INTERP +0x0+f4 0x0+4000f4 0x0+4000f4 0x0+11 0x0+11 R +0x1 ++ +PHDR +0x0+34 0x0+400034 0x0+400034 0x0+e0 0x0+e0 R E 0x4 ++ +INTERP +0x0+114 0x0+400114 0x0+400114 0x0+11 0x0+11 R +0x1 + .*Requesting program interpreter.* + +LOAD .* R E 0x1000 + +LOAD .* RW +0x1000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0+60 0x0+a0 R +0x20 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -52,6 +53,7 @@ Program Headers: + +03 +.tdata .dynamic .got * + +04 +.dynamic * + +05 +.tdata .tbss * ++ +06 + + + Relocation section '.rela.dyn' at offset .* contains 4 entries: + Offset +Info +Type +Sym.Value +Sym. Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-s390/tlsbin_64.rd ++++ binutils-2.22/ld/testsuite/ld-s390/tlsbin_64.rd +@@ -36,13 +36,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +- +PHDR +0x0+40 0x0+80000040 0x0+80000040 0x0+150 0x0+150 R E 0x8 +- +INTERP +0x0+190 0x0+80000190 0x0+80000190 0x0+11 0x0+11 R +0x1 ++ +PHDR +0x0+40 0x0+80000040 0x0+80000040 0x0+188 0x0+188 R E 0x8 ++ +INTERP +0x0+1c8 0x0+800001c8 0x0+800001c8 0x0+11 0x0+11 R +0x1 + .*Requesting program interpreter.* + +LOAD .* R E 0x1000 + +LOAD .* RW +0x1000 + +DYNAMIC .* RW +0x8 + +TLS .* 0x0+60 0x0+a0 R +0x20 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -52,6 +53,7 @@ Program Headers: + +03 +.tdata .dynamic .got * + +04 +.dynamic * + +05 +.tdata .tbss * ++ +06 + + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 4 entries: + +Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-s390/tlspic.rd ++++ binutils-2.22/ld/testsuite/ld-s390/tlspic.rd +@@ -39,6 +39,7 @@ Program Headers: + +LOAD .* RW +0x1000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0+60 0x0+80 R +0x20 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -46,6 +47,7 @@ Program Headers: + +01 +.tdata .dynamic .got + +02 +.dynamic + +03 +.tdata .tbss ++ +04 + + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: + Offset +Info +Type +Sym.Value +Sym. Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-s390/tlspic_64.rd ++++ binutils-2.22/ld/testsuite/ld-s390/tlspic_64.rd +@@ -39,6 +39,7 @@ Program Headers: + +LOAD .* RW +0x1000 + +DYNAMIC .* RW +0x8 + +TLS .* 0x0+60 0x0+80 R +0x20 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -46,6 +47,7 @@ Program Headers: + +01 +.tdata .dynamic .got * + +02 +.dynamic * + +03 +.tdata .tbss * ++ +04 + + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: + +Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-scripts/empty-aligned.d ++++ binutils-2.22/ld/testsuite/ld-scripts/empty-aligned.d +@@ -8,7 +8,9 @@ + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg +Align + +LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ [RWE ]+ +0x[0-9a-f]+ ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections\.\.\. + +00 +.text ++ +01 + +--- binutils-2.22/ld/testsuite/ld-sh/tlsbin-2.d ++++ binutils-2.22/ld/testsuite/ld-sh/tlsbin-2.d +@@ -44,6 +44,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x0+18 0x0+28 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections\.\.\. +@@ -53,6 +54,7 @@ Program Headers: + +03 +\.tdata \.dynamic \.got * + +04 +\.dynamic * + +05 +\.tdata \.tbss * ++ +06 + + + Relocation section '\.rela\.dyn' at offset 0x[0-9a-f]+ contains 4 entries: + Offset +Info +Type +Sym\.Value +Sym\. Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-sh/tlspic-2.d ++++ binutils-2.22/ld/testsuite/ld-sh/tlspic-2.d +@@ -32,7 +32,7 @@ Key to Flags: + + Elf file type is DYN $Shared object file$ + Entry point 0x[0-9a-f]+ +-There are 4 program headers, starting at offset [0-9]+ ++There are [0-9] program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +@@ -40,6 +40,7 @@ Program Headers: + +LOAD.* + +DYNAMIC.* + +TLS .* 0x0+18 0x0+20 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections\.\.\. +@@ -47,6 +48,7 @@ Program Headers: + +01 +\.tdata \.dynamic \.got * + +02 +\.dynamic * + +03 +\.tdata \.tbss * ++ +04 + + + Relocation section '\.rela\.dyn' at offset 0x[0-9a-f]+ contains 10 entries: + Offset +Info +Type +Sym\.Value +Sym\. Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-sparc/gotop32.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/gotop32.rd +@@ -31,6 +31,7 @@ Program Headers: + +LOAD +0x0+ 0x0+ 0x0+ 0x0+2000 0x0+2000 R E 0x10000 + +LOAD +0x0+2000 0x0+12000 0x0+12000 0x0+2000 0x0+2000 RW +0x10000 + +DYNAMIC +0x0+2000 0x0+12000 0x0+12000 0x0+70 0x0+70 RW +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/gotop64.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/gotop64.rd +@@ -31,6 +31,7 @@ Program Headers: + +LOAD +0x0+ 0x0+ 0x0+ 0x0+2000 0x0+2000 R E 0x100000 + +LOAD +0x0+2000 0x0+102000 0x0+102000 0x0+2000 0x0+2000 RW +0x100000 + +DYNAMIC +0x0+2000 0x0+102000 0x0+102000 0x0+e0 0x0+e0 RW +0x8 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 1 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunbin32.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunbin32.rd +@@ -30,13 +30,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz MemSiz +Flg Align +- +PHDR +0x0+34 0x0+10034 0x0+10034 0x0+c0 0x0+c0 R E 0x4 +- +INTERP +0x0+f4 0x0+100f4 0x0+100f4 0x0+11 0x0+11 R +0x1 ++ +PHDR +0x0+34 0x0+10034 0x0+10034 (0x[0-9a-f]+) \1 R E 0x4 ++ +INTERP +(0x[0-9a-f]+ ){3}0x0+11 0x0+11 R +0x1 + .*Requesting program interpreter.* + +LOAD .* R E 0x10000 + +LOAD .* RW +0x10000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0+1060 0x0+10a0 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 4 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunbin64.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunbin64.rd +@@ -30,13 +30,14 @@ There are [0-9]+ program headers, starting at offset [0-9]+ + + Program Headers: + +Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align +- +PHDR +0x0+40 0x0+100040 0x0+100040 0x0+150 0x0+150 R E 0x8 +- +INTERP +0x0+190 0x0+100190 0x0+100190 0x0+19 0x0+19 R +0x1 ++ +PHDR +0x0+40 0x0+100040 0x0+100040 (0x[0-9a-f]+) \1 R E 0x8 ++ +INTERP +0x0+([0-9a-f]+) (0x0+10+\1) \2 0x0+19 0x0+19 R +0x1 + .*Requesting program interpreter.* + +LOAD .* R E 0x100000 + +LOAD .* RW +0x100000 + +DYNAMIC .* RW +0x8 + +TLS .* 0x0+60 0x0+a0 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 4 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunnopic32.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunnopic32.rd +@@ -32,6 +32,7 @@ Program Headers: + +LOAD .* RW +0x10000 + +DYNAMIC .* RW +0x4 + +TLS .* 0x0+ 0x0+24 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 12 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunnopic64.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunnopic64.rd +@@ -32,6 +32,7 @@ Program Headers: + +LOAD .* RW +0x100000 + +DYNAMIC .* RW +0x8 + +TLS .* 0x0+ 0x0+24 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunpic32.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunpic32.rd +@@ -36,6 +36,7 @@ Program Headers: + +LOAD +0x0+2000 0x0+12000 0x0+12000 0x0+184 0x0+184 RWE 0x10000 + +DYNAMIC +0x0+2060 0x0+12060 0x0+12060 0x0+98 0x0+98 RW +0x4 + +TLS +0x0+2000 0x0+12000 0x0+12000 0x0+60 0x0+80 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: +--- binutils-2.22/ld/testsuite/ld-sparc/tlssunpic64.rd ++++ binutils-2.22/ld/testsuite/ld-sparc/tlssunpic64.rd +@@ -36,6 +36,7 @@ Program Headers: + +LOAD +0x0+2000 0x0+102000 0x0+102000 0x0+3a0 0x0+3a0 RWE 0x100000 + +DYNAMIC +0x0+2060 0x0+102060 0x0+102060 0x0+130 0x0+130 RW +0x8 + +TLS +0x0+2000 0x0+102000 0x0+102000 0x0+60 0x0+80 R +0x4 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + #... + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: +--- binutils-2.22/ld/testsuite/ld-x86-64/protected3.d ++++ binutils-2.22/ld/testsuite/ld-x86-64/protected3.d +@@ -8,6 +8,6 @@ + Disassembly of section .text: + + 0+[a-f0-9]+ <bar>: +-[ ]*[a-f0-9]+: 8b 05 [a-f0-9][a-f0-9] 00 [a-f0-9][a-f0-9] 00 mov 0x[a-f0-9]+$%rip$,%eax # [a-f0-9]+ <foo> ++[ ]*[a-f0-9]+: 8b 05 [a-f0-9][a-f0-9] [a-f0-9][a-f0-9] [a-f0-9][a-f0-9] 00 mov 0x[a-f0-9]+$%rip$,%eax # [a-f0-9]+ <foo> + [ ]*[a-f0-9]+: c3 retq + #pass +--- binutils-2.22/ld/testsuite/ld-x86-64/tlsgdesc.rd ++++ binutils-2.22/ld/testsuite/ld-x86-64/tlsgdesc.rd +@@ -36,12 +36,14 @@ Program Headers: + +LOAD.* + +LOAD.* + +DYNAMIC.* ++ +PAX_FLAGS.* + + Section to Segment mapping: + +Segment Sections... + +00 +.hash .dynsym .dynstr .rela.dyn .rela.plt .plt .text * + +01 +.dynamic .got .got.plt * + +02 +.dynamic * ++ +03 + + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 8 entries: + +Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend +--- binutils-2.22/ld/testsuite/ld-x86-64/tlspic.rd ++++ binutils-2.22/ld/testsuite/ld-x86-64/tlspic.rd +@@ -40,6 +40,7 @@ Program Headers: + +LOAD +0x0+11ac 0x0+2011ac 0x0+2011ac 0x0+244 0x0+244 RW +0x200000 + +DYNAMIC +0x0+1210 0x0+201210 0x0+201210 0x0+130 0x0+130 RW +0x8 + +TLS +0x0+11ac 0x0+2011ac 0x0+2011ac 0x0+60 0x0+80 R +0x1 ++ +PAX_FLAGS +0x0+ 0x0+ 0x0+ 0x0+ 0x0+ +0x[48] + + Section to Segment mapping: + +Segment Sections... +@@ -47,6 +48,7 @@ Program Headers: + +01 +.tdata .dynamic .got .got.plt * + +02 +.dynamic * + +03 +.tdata .tbss * ++ +04 + + + Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 14 entries: + +Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend diff --git a/binutils/patches/binutils-2.22-warn-textrel.patch b/binutils/patches/binutils-2.22-warn-textrel.patch new file mode 100644 index 0000000..ab63ed4 --- /dev/null +++ b/binutils/patches/binutils-2.22-warn-textrel.patch @@ -0,0 +1,60 @@ +textrels are bad for forcing copy-on-write (this affects everyone), +and for security/runtime code generation, this affects security ppl. +But in either case, it doesn't matter who needs textrels, it's +the very fact that they're needed at all. + +2006-06-10 Ned Ludd <solar(a)gentoo.org>, Mike Frysinger <vapier(a)gentoo.org> + + * bfd/elflink.c (bfd_elf_final_link): Check all objects for TEXTRELs. + * ld/ldmain.c (main): Change textrel warning default to true. + * ld/testsuite/lib/ld-lib.exp (default_ld_simple_link): Scrub TEXTREL + warnings from ld output. + +--- a/bfd/elflink.c ++++ b/bfd/elflink.c +@@ -8652,14 +8652,12 @@ bfd_elf_final_link (bfd *abfd, struct bf + goto error_return; + + /* Check for DT_TEXTREL (late, in case the backend removes it). */ +- if ((info->warn_shared_textrel && info->shared) ++ o = bfd_get_section_by_name (dynobj, ".dynamic"); ++ if ((info->warn_shared_textrel && o != NULL) + || info->error_textrel) + { + bfd_byte *dyncon, *dynconend; + + /* Fix up .dynamic entries. */ +- o = bfd_get_section_by_name (dynobj, ".dynamic"); +- BFD_ASSERT (o != NULL); +- + dyncon = o->contents; + dynconend = o->contents + o->size; + for (; dyncon < dynconend; dyncon += bed->s->sizeof_dyn) +@@ -8702,7 +8702,7 @@ bfd_elf_final_link (bfd *abfd, struct bf + (_("%P%X: read-only segment has dynamic relocations.\n")); + else + info->callbacks->einfo +- (_("%P: warning: creating a DT_TEXTREL in a shared object.\n")); ++ (_("%P: warning: creating a DT_TEXTREL in object.\n")); + break; + } + } +--- a/ld/ldmain.c ++++ b/ld/ldmain.c +@@ -282,2 +282,3 @@ main (int argc, char **argv) + link_info.spare_dynamic_tags = 5; ++ link_info.warn_shared_textrel = TRUE; + link_info.sharable_sections = FALSE; +--- a/ld/testsuite/lib/ld-lib.exp ++++ b/ld/testsuite/lib/ld-lib.exp +@@ -181,6 +181,10 @@ proc default_ld_simple_link { ld target + # symbol, since the default linker script might use ENTRY. + regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output + ++ # Gentoo tweak: ++ # We want to ignore TEXTREL warnings since we force enable them by default ++ regsub -all "^lt-ld-new: warning: creating a DT_TEXTREL in object\." $exec_output "\\1" exec_output ++ + if [string match "" $exec_output] then { + return 1 + } else { hooks/post-receive -- IPFire 3.x development tree

1 0

[IPFire-SCM] [git.ipfire.org] IPFire 3.x development tree branch, master, updated. 9fa0fb55b55a55fc4b3a092ccb8000a5011ad2d9
by git＠ipfire.org 23 Nov '11

23 Nov '11

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 9fa0fb55b55a55fc4b3a092ccb8000a5011ad2d9 (commit) via 7bcf28fd5f630d0808e2f7c8db339b94b50e897e (commit) via 5235df063e4dea832dfad8c22d689d9d72a43207 (commit) via bb885adb78801da4ee47ad19517dec4566cd9596 (commit) via 96d0efe9c85c435588a81a017770e5e4d8b4f736 (commit) via 8c5ccb6a2ec39be34dc696e6e73776b706e49cb3 (commit) via 55625ae8bc1c63bdef3ba503a9d586151776910c (commit) via 19ef2da5fa728ab6828a77df1013f5dee7662d6c (commit) from 75466c12cfd17030f32e698e0a98fbef38726cd3 (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 9fa0fb55b55a55fc4b3a092ccb8000a5011ad2d9 Merge: 7bcf28f 55625ae Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 22:28:41 2011 +0100 Merge remote-tracking branch 'maniacikarus/iptables' commit 7bcf28fd5f630d0808e2f7c8db339b94b50e897e Merge: 5235df0 19ef2da Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 22:28:29 2011 +0100 Merge remote-tracking branch 'maniacikarus/ids' Conflicts: suricata/suricata.nm commit 5235df063e4dea832dfad8c22d689d9d72a43207 Merge: bb885ad 96d0efe Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 22:27:54 2011 +0100 Merge remote-tracking branch 'stevee/curl' commit bb885adb78801da4ee47ad19517dec4566cd9596 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Wed Nov 23 22:27:00 2011 +0100 mstpd: Add patch to ignore NO-CARRIER state. commit 96d0efe9c85c435588a81a017770e5e4d8b4f736 Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Wed Nov 23 21:01:56 2011 +0100 curl: Enable testsuite. Testsuite now works and will run through. Please ignore the error message on test 564. ( RUN: failed to start the SSH server ) commit 8c5ccb6a2ec39be34dc696e6e73776b706e49cb3 Author: Stefan Schantl <stefan.schantl(a)ipfire.org> Date: Wed Nov 23 20:58:18 2011 +0100 curl: Update to 7.23.1. Fixes #295. commit 55625ae8bc1c63bdef3ba503a9d586151776910c Author: Christian Schmidt <christian.schmidt(a)ipfire.org> Date: Mon Nov 21 18:18:41 2011 +0000 iptables: Updated to version 1.4.12.1 fixes: #291 commit 19ef2da5fa728ab6828a77df1013f5dee7662d6c Author: Christian Schmidt <christian.schmidt(a)ipfire.org> Date: Mon Nov 21 18:08:55 2011 +0000 suricata: Changed some config options. ----------------------------------------------------------------------- Summary of changes: curl/curl.nm | 13 +- iptables/iptables.nm | 4 +- mstpd/mstpd.nm | 2 +- .../ignore-carrier-state-on-bridge-device.patch0 | 140 ++++++++++++++++++++ suricata/suricata.conf | 10 ++ suricata/suricata.nm | 2 +- suricata/systemd/suricata.service | 2 +- 7 files changed, 161 insertions(+), 12 deletions(-) create mode 100644 mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 Difference in files: diff --git a/curl/curl.nm b/curl/curl.nm index 3baf575..5a752fd 100644 --- a/curl/curl.nm +++ b/curl/curl.nm @@ -4,8 +4,8 @@ ############################################################################### name = curl -version = 7.21.7 -release = 1 +version = 7.23.1 +release = 2 groups = Application/Internet url = http://www.curl.haxx.se/ @@ -20,7 +20,7 @@ description user authentication, FTP upload, HTTP post, and file transfer resume. end -source_dl = +source_dl = http://curl.haxx.se/download/ build requires @@ -53,10 +53,9 @@ build autoreconf -vfi end - # Doesn't work - #test - # make check - #end + test + make check + end end packages diff --git a/iptables/iptables.nm b/iptables/iptables.nm index b7ce6aa3d..771397d 100644 --- a/iptables/iptables.nm +++ b/iptables/iptables.nm @@ -4,7 +4,7 @@ ############################################################################### name = iptables -version = 1.4.12 +version = 1.4.12.1 release = 1 groups = Networking/Tools @@ -18,7 +18,7 @@ description you should install this package. end -source_dl = +source_dl = http://ftp.netfilter.org/pub/iptables/ sources = %{thisapp}.tar.bz2 build diff --git a/mstpd/mstpd.nm b/mstpd/mstpd.nm index 55197ba..87d3741 100644 --- a/mstpd/mstpd.nm +++ b/mstpd/mstpd.nm @@ -6,7 +6,7 @@ name = mstpd version = 0.01 svn_ver = 16 -release = 0.2-svn%{svn_ver}.1 +release = 0.2-svn%{svn_ver}.2 thisapp = %{name}-%{version}-svn%{svn_ver} groups = Networking/Tools diff --git a/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 b/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 new file mode 100644 index 0000000..189bf96 --- /dev/null +++ b/mstpd/patches/ignore-carrier-state-on-bridge-device.patch0 @@ -0,0 +1,140 @@ +Index: bridge_ctl.h +=================================================================== +--- bridge_ctl.h (revision 16) ++++ bridge_ctl.h (working copy) +@@ -81,7 +81,7 @@ + + int init_bridge_ops(void); + +-int bridge_notify(int br_index, int if_index, bool newlink, bool up); ++int bridge_notify(int br_index, int if_index, bool newlink, unsigned flags); + + void bridge_bpdu_rcv(int ifindex, const unsigned char *data, int len); + +Index: brmon.c +=================================================================== +--- brmon.c (revision 16) ++++ brmon.c (working copy) +@@ -66,7 +66,7 @@ + int len = n->nlmsg_len; + char b1[IFNAMSIZ]; + int af_family = ifi->ifi_family; +- bool newlink, up; ++ bool newlink; + int br_index; + + if(n->nlmsg_type == NLMSG_DONE) +@@ -154,12 +154,6 @@ + fflush(fp); + + newlink = (n->nlmsg_type == RTM_NEWLINK); +- up = false; +- if(newlink && tb[IFLA_OPERSTATE]) +- { +- int state = *(uint8_t*)RTA_DATA(tb[IFLA_OPERSTATE]); +- up = (state == IF_OPER_UP) || (state == IF_OPER_UNKNOWN); +- } + + if(tb[IFLA_MASTER]) + br_index = *(int*)RTA_DATA(tb[IFLA_MASTER]); +@@ -168,7 +162,7 @@ + else + br_index = -1; + +- bridge_notify(br_index, ifi->ifi_index, newlink, up); ++ bridge_notify(br_index, ifi->ifi_index, newlink, ifi->ifi_flags); + + return 0; + } +Index: bridge_track.c +=================================================================== +--- bridge_track.c (revision 16) ++++ bridge_track.c (working copy) +@@ -279,13 +279,15 @@ + } + + /* br_index == if_index means: interface is bridge master */ +-int bridge_notify(int br_index, int if_index, bool newlink, bool up) ++int bridge_notify(int br_index, int if_index, bool newlink, unsigned flags) + { + port_t *ifc; + bridge_t *br = NULL, *other_br; ++ bool up = !!(flags & IFF_UP); ++ bool running = up && (flags & IFF_RUNNING); + +- LOG("br_index %d, if_index %d, newlink %d, up %d", +- br_index, if_index, newlink, up); ++ LOG("br_index %d, if_index %d, newlink %d, up %d, running %d", ++ br_index, if_index, newlink, up, running); + + if((br_index >= 0) && (br_index != if_index)) + { +@@ -296,9 +298,9 @@ + ERROR("Couldn't create data for bridge interface %d", br_index); + return -1; + } +- int br_up = ethtool_get_link(br->sysdeps.name); +- if(br_up >= 0) +- set_br_up(br, !!br_up); ++ int br_flags = get_flags(br->sysdeps.name); ++ if(br_flags >= 0) ++ set_br_up(br, !!(flags & IFF_UP)); + } + + if(br) +@@ -336,7 +338,7 @@ + delete_if(ifc); + return 0; + } +- set_if_up(ifc, up); /* And speed and duplex */ ++ set_if_up(ifc, running); /* And speed and duplex */ + } + else + { /* Interface is not a bridge slave */ +Index: netif_utils.c +=================================================================== +--- netif_utils.c (revision 16) ++++ netif_utils.c (working copy) +@@ -65,23 +65,17 @@ + return 0; + } + +-int ethtool_get_link(char *ifname) ++int get_flags(char *ifname) + { + struct ifreq ifr; + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, ifname, IFNAMSIZ); +- struct ethtool_value eval; +- +- eval.cmd = ETHTOOL_GLINK; +- ifr.ifr_data = (caddr_t)&eval; +- if(0 > ioctl(netsock, SIOCETHTOOL, &ifr)) ++ if(0 > ioctl(netsock, SIOCGIFFLAGS, &ifr)) + { +- ERROR("Cannot get link status for %s: %m\n", ifname); ++ ERROR("%s: get interface flags failed: %m", ifname); + return -1; + } +- if(eval.data) +- return 1; +- return 0; ++ return ifr.ifr_flags; + } + + int ethtool_get_speed_duplex(char *ifname, int *speed, int *duplex) +Index: netif_utils.h +=================================================================== +--- netif_utils.h (revision 16) ++++ netif_utils.h (working copy) +@@ -31,9 +31,9 @@ + int netsock_init(void); + + int get_hwaddr(char *ifname, unsigned char *hwaddr); ++int get_flags(char *ifname); + + int ethtool_get_speed_duplex(char *ifname, int *speed, int *duplex); +-int ethtool_get_link(char *ifname); + + bool is_bridge(char *if_name); + diff --git a/suricata/suricata.conf b/suricata/suricata.conf index d1d5a25..8c2b1ed 100644 --- a/suricata/suricata.conf +++ b/suricata/suricata.conf @@ -255,6 +255,7 @@ flow-timeouts: stream: memcap: 33554432 checksum_validation: yes + inline: yes reassembly: memcap: 67108864 depth: 1048576 @@ -295,6 +296,15 @@ logging: enabled: no facility: local5 format: "[%i] <%d> -- " + - drop: + enabled: yes + filename: drop.log + append: yes + +nfq: + mode: repeat + repeat_mark: 1 + repeat_mask: 1 # PF_RING configuration. for use with native PF_RING support # for more info see http://www.ntop.org/PF_RING.html diff --git a/suricata/suricata.nm b/suricata/suricata.nm index 7c4cec5..d1e67e2 100644 --- a/suricata/suricata.nm +++ b/suricata/suricata.nm @@ -5,7 +5,7 @@ name = suricata version = 1.1 -release = 1 +release = 2 groups = Networking/IDS url = http://www.openinfosecfoundation.org/ diff --git a/suricata/systemd/suricata.service b/suricata/systemd/suricata.service index 4e0b689..24cfa98 100644 --- a/suricata/systemd/suricata.service +++ b/suricata/systemd/suricata.service @@ -5,7 +5,7 @@ After=syslog.target network.target [Service] Type=forking ExecStart=/usr/bin/suricata -c /etc/suricata/suricata.conf -q 0 -q 1 -D -ExecStartPost=/sbin/iptables -I INPUT -j NFQUEUE -–queue-balance 0:1 +ExecStartPost=/sbin/iptables -I INPUT -mark ! --mark 1/1 -j NFQUEUE -–queue-balance 0:1 ExecReload=/bin/kill -HUP $MAINPID ExecStop=/sbin/iptables -D INPUT -j NFQUEUE -–queue-balance 0:1 ExecStopPost=/bin/kill $MAINPID 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. 75466c12cfd17030f32e698e0a98fbef38726cd3
by git＠ipfire.org 20 Nov '11

20 Nov '11

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 75466c12cfd17030f32e698e0a98fbef38726cd3 (commit) from 6e9df6a3b77b746139cd8b1f6a912d215b4069b0 (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 75466c12cfd17030f32e698e0a98fbef38726cd3 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sun Nov 20 23:45:59 2011 +0100 gnutls: Update to 3.0.8. Some minor security fixes. Fixes #292. ----------------------------------------------------------------------- Summary of changes: gnutls/gnutls.nm | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) Difference in files: diff --git a/gnutls/gnutls.nm b/gnutls/gnutls.nm index fd5772d..b316dec 100644 --- a/gnutls/gnutls.nm +++ b/gnutls/gnutls.nm @@ -4,7 +4,7 @@ ############################################################################### name = gnutls -version = 3.0.7 +version = 3.0.8 release = 1 groups = System/Libraries 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. 6e9df6a3b77b746139cd8b1f6a912d215b4069b0
by git＠ipfire.org 18 Nov '11

18 Nov '11

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 6e9df6a3b77b746139cd8b1f6a912d215b4069b0 (commit) via d68f6365c79ef55752434b65ce98d5a5e8bdfd1e (commit) from 11e0dd470713e7d71bcc6c60d15d807c2b6af648 (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 6e9df6a3b77b746139cd8b1f6a912d215b4069b0 Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Sat Nov 19 00:21:15 2011 +0100 kernel: Update to 3.1.1. Packaging cpupower. commit d68f6365c79ef55752434b65ce98d5a5e8bdfd1e Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Nov 18 22:42:14 2011 +0100 dialog: New package. ----------------------------------------------------------------------- Summary of changes: dialog/dialog.nm | 60 + dialog/patches/dialog-incdir.patch | 23 + dialog/patches/dialog-libs.patch | 17 + dialog/patches/dialog-multilib.patch | 32 + kernel/config.i686 | 120 +- kernel/config.i686-PAE | 120 +- kernel/kernel.nm | 28 +- ...h => grsecurity-2.2.2-3.1.1-201111171911.patch} |18463 ++++++++++++-------- kernel/patches/linux-3.0-bridge-no-carrier.patch | 44 - kernel/systemd/cpupower.service | 12 + 10 files changed, 11611 insertions(+), 7308 deletions(-) create mode 100644 dialog/dialog.nm create mode 100644 dialog/patches/dialog-incdir.patch create mode 100644 dialog/patches/dialog-libs.patch create mode 100644 dialog/patches/dialog-multilib.patch rename kernel/patches/{grsecurity-2.2.2-3.0.4-201109261052.patch => grsecurity-2.2.2-3.1.1-201111171911.patch} (78%) delete mode 100644 kernel/patches/linux-3.0-bridge-no-carrier.patch create mode 100644 kernel/systemd/cpupower.service Difference in files: diff --git a/dialog/dialog.nm b/dialog/dialog.nm new file mode 100644 index 0000000..00fefbf --- /dev/null +++ b/dialog/dialog.nm @@ -0,0 +1,60 @@ +############################################################################### +# IPFire.org - An Open Source Firewall Solution # +# Copyright (C) - IPFire Development Team <info(a)ipfire.org> # +############################################################################### + +name = dialog +version = 1.1 +svn_ver = 20111020 +release = 1.%{svn_ver} +thisapp = %{name}-%{version}-%{svn_ver} + +groups = Applications/System +url = http://invisible-island.net/dialog/dialog.html +license = LGPLv2 +summary = A utility for creating TTY dialog boxes. + +description + Dialog is a utility that allows you to show dialog boxes (containing + questions or messages) in TTY (text mode) interfaces. Dialog is called + from within a shell script. The following dialog boxes are implemented: + yes/no, menu, input, message, text, info, checklist, radiolist, and + gauge. +end + +source_dl = ftp://invisible-island.net/dialog/ +sources = %{thisapp}.tgz + +build + requires + findutils + gettext + libtool + ncurses-devel + end + + configure_options += \ + --enable-nls \ + --with-libtool \ + --with-ncursesw \ + --includedir=/usr/include/dialog \ + --mandir=/usr/share/man + + install_cmds + chmod -v 755 %{BUILDROOT}/usr/lib/libdialog.so.*.*.* + end +end + +quality-agent + whitelist_rpath + /usr/lib + end +end + +packages + package %{name} + + package %{name}-devel + template DEVEL + end +end diff --git a/dialog/patches/dialog-incdir.patch b/dialog/patches/dialog-incdir.patch new file mode 100644 index 0000000..f31f57b --- /dev/null +++ b/dialog/patches/dialog-incdir.patch @@ -0,0 +1,23 @@ +diff -up dialog-1.1-20110707/dialog-config.in.incdir dialog-1.1-20110707/dialog-config.in +--- dialog-1.1-20110707/dialog-config.in.incdir 2011-01-06 10:38:03.000000000 +0100 ++++ dialog-1.1-20110707/dialog-config.in 2011-07-26 13:00:02.692038027 +0200 +@@ -35,6 +35,7 @@ bindir="@bindir@" + libdir="@libdir@" + datadir="@datadir@" + mandir="@mandir@" ++includedir="@includedir@" + + THIS="@PACKAGE@" + +@@ -67,10 +68,7 @@ while test $# -gt 0; do + ;; + # compile/link + --cflags) +- INCS= +- if test "${prefix}/include" != /usr/include ; then +- INCS="-I${prefix}/include" +- fi ++ INCS="-I$includedir" + sed -e 's,^[ ]*,,' -e 's, [ ]*, ,g' -e 's,[ ]*$,,' <<-ENDECHO + $INCS + ENDECHO diff --git a/dialog/patches/dialog-libs.patch b/dialog/patches/dialog-libs.patch new file mode 100644 index 0000000..8669336 --- /dev/null +++ b/dialog/patches/dialog-libs.patch @@ -0,0 +1,17 @@ +diff -up dialog-1.1-20110707/makefile.in.libs dialog-1.1-20110707/makefile.in +--- dialog-1.1-20110707/makefile.in.libs 2011-06-25 02:27:56.000000000 +0200 ++++ dialog-1.1-20110707/makefile.in 2011-07-26 13:04:50.389183890 +0200 +@@ -176,11 +176,11 @@ dialog$o \ + $(OBJECTS) : $(srcdir)/dialog.h $(srcdir)/dlg_keys.h dlg_config.h VERSION + + $(LIB) : $(LIB_OBJECT) +- $(LIBTOOL_CREATE) $(LIB) $(LIB_OBJECT) ++ $(LIBTOOL_CREATE) $(LIB) $(LIB_OBJECT) $(LIBS) + $(RANLIB) $@ + + dialog$x : $(LIB) dialog$o @INTLDIR_MAKE@ @INTLLIBS@ +- $(LINK) -o $@ dialog$o -L. -l@PACKAGE@ $(LDFLAGS) $(LIBS) ++ $(LINK) -o $@ dialog$o -L. -l@PACKAGE@ $(LDFLAGS) + + clean \ + distclean \ diff --git a/dialog/patches/dialog-multilib.patch b/dialog/patches/dialog-multilib.patch new file mode 100644 index 0000000..fc35c76 --- /dev/null +++ b/dialog/patches/dialog-multilib.patch @@ -0,0 +1,32 @@ +diff -up dialog-1.1-20110707/dialog-config.in.multilib dialog-1.1-20110707/dialog-config.in +--- dialog-1.1-20110707/dialog-config.in.multilib 2011-07-26 13:01:29.929082616 +0200 ++++ dialog-1.1-20110707/dialog-config.in 2011-07-26 13:01:29.932082618 +0200 +@@ -32,7 +32,7 @@ prefix="@prefix@" + exec_prefix="@exec_prefix@" + + bindir="@bindir@" +-libdir="@libdir@" ++libdir= + datadir="@datadir@" + mandir="@mandir@" + includedir="@includedir@" +@@ -75,7 +75,7 @@ ENDECHO + ;; + --libs) + sed -e 's,^[ ]*,,' -e 's, [ ]*, ,g' -e 's,[ ]*$,,' <<-ENDECHO +- -L${exec_prefix}/lib -l${THIS} @LIBS@ ++ -l${THIS} + ENDECHO + ;; + # identification +diff -up dialog-1.1-20110707/headers-sh.in.multilib dialog-1.1-20110707/headers-sh.in +--- dialog-1.1-20110707/headers-sh.in.multilib 2011-01-06 10:38:25.000000000 +0100 ++++ dialog-1.1-20110707/headers-sh.in 2011-07-26 13:02:44.177120225 +0200 +@@ -127,6 +127,7 @@ EOF + echo "s,#include <${pkgname}_,#include <${PACKAGE}/${pkgname}_," >>$TMPSED + fi + ++ echo '/_FILE_OFFSET_BITS/d' >>$TMPSED + # reduce the count if possible, since some old sed's limit is 100 lines + sort -u $TMPSED >headers.tmp + mv headers.tmp $TMPSED diff --git a/kernel/config.i686 b/kernel/config.i686 index 44d6990..0cb854c 100644 --- a/kernel/config.i686 +++ b/kernel/config.i686 @@ -1,6 +1,6 @@ # -# Automatically generated make config: don't edit -# Linux/i386 3.0.4-9.ip3.i686 Kernel Configuration +# Automatically generated file; DO NOT EDIT. +# Linux/i386 3.1.1-1.ip3.i686 Kernel Configuration # # CONFIG_64BIT is not set CONFIG_X86_32=y @@ -163,6 +163,7 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_PCSPKR_PLATFORM=y +CONFIG_HAVE_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -207,6 +208,7 @@ CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_ARCH_JUMP_LABEL=y +CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y # # GCOV-based kernel profiling @@ -226,6 +228,7 @@ CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y CONFIG_LBDAF=y CONFIG_BLK_DEV_BSG=y +CONFIG_BLK_DEV_BSGLIB=y CONFIG_BLK_DEV_INTEGRITY=y CONFIG_BLK_DEV_THROTTLING=y @@ -284,13 +287,14 @@ CONFIG_SMP=y CONFIG_X86_MPPARSE=y CONFIG_X86_BIGSMP=y CONFIG_X86_EXTENDED_PLATFORM=y -# CONFIG_X86_MRST is not set +# CONFIG_X86_INTEL_MID is not set # CONFIG_X86_RDC321X is not set # CONFIG_X86_32_NON_STANDARD is not set CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y # CONFIG_X86_32_IRIS is not set CONFIG_SCHED_OMIT_FRAME_POINTER=y CONFIG_PARAVIRT_GUEST=y +CONFIG_PARAVIRT_TIME_ACCOUNTING=y # CONFIG_XEN_PRIVILEGED_GUEST is not set CONFIG_KVM_CLOCK=y CONFIG_KVM_GUEST=y @@ -330,6 +334,7 @@ CONFIG_X86_GENERIC=y CONFIG_X86_INTERNODE_CACHE_SHIFT=6 CONFIG_X86_CMPXCHG=y CONFIG_CMPXCHG_LOCAL=y +CONFIG_CMPXCHG_DOUBLE=y CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_XADD=y CONFIG_X86_PPRO_FENCE=y @@ -355,7 +360,6 @@ CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y # CONFIG_IOMMU_HELPER is not set -CONFIG_IOMMU_API=y CONFIG_NR_CPUS=256 CONFIG_SCHED_SMT=y CONFIG_SCHED_MC=y @@ -429,7 +433,7 @@ CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1 CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1 CONFIG_X86_PAT=y CONFIG_ARCH_USES_PG_UNCACHED=y -# CONFIG_EFI is not set +CONFIG_EFI=y CONFIG_SECCOMP=y # CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set @@ -485,11 +489,12 @@ CONFIG_ACPI_PCI_SLOT=y CONFIG_X86_PM_TIMER=y CONFIG_ACPI_CONTAINER=y CONFIG_ACPI_SBS=m -CONFIG_ACPI_HED=m +CONFIG_ACPI_HED=y CONFIG_ACPI_CUSTOM_METHOD=m CONFIG_ACPI_APEI=y -CONFIG_ACPI_APEI_GHES=m +CONFIG_ACPI_APEI_GHES=y CONFIG_ACPI_APEI_PCIEAER=y +CONFIG_ACPI_APEI_MEMORY_FAILURE=y # CONFIG_ACPI_APEI_EINJ is not set # CONFIG_ACPI_APEI_ERST_DEBUG is not set CONFIG_SFI=y @@ -560,9 +565,6 @@ CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y # CONFIG_PCI_CNB20LE_QUIRK is not set -CONFIG_DMAR=y -CONFIG_DMAR_DEFAULT_ON=y -CONFIG_DMAR_FLOPPY_WA=y CONFIG_PCIEPORTBUS=y CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_PCIEAER=y @@ -828,6 +830,7 @@ CONFIG_IP_SET_HASH_IPPORTIP=m CONFIG_IP_SET_HASH_IPPORTNET=m CONFIG_IP_SET_HASH_NET=m CONFIG_IP_SET_HASH_NETPORT=m +CONFIG_IP_SET_HASH_NETIFACE=m CONFIG_IP_SET_LIST_SET=m CONFIG_IP_VS=m CONFIG_IP_VS_IPV6=y @@ -1139,6 +1142,7 @@ CONFIG_RFKILL_INPUT=y # CONFIG_NET_9P is not set # CONFIG_CAIF is not set # CONFIG_CEPH_LIB is not set +# CONFIG_NFC is not set # # Device Drivers @@ -1187,6 +1191,7 @@ CONFIG_BLK_DEV_DAC960=m CONFIG_BLK_DEV_UMEM=m # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 CONFIG_BLK_DEV_CRYPTOLOOP=m # CONFIG_BLK_DEV_DRBD is not set # CONFIG_BLK_DEV_NBD is not set @@ -1227,6 +1232,7 @@ CONFIG_DS1682=m CONFIG_VMWARE_BALLOON=m # CONFIG_BMP085 is not set CONFIG_PCH_PHUB=m +CONFIG_USB_SWITCH_FSA9480=m # CONFIG_C2PORT is not set # @@ -1321,6 +1327,7 @@ CONFIG_SCSI_AIC94XX=m # CONFIG_AIC94XX_DEBUG is not set CONFIG_SCSI_MVSAS=m # CONFIG_SCSI_MVSAS_DEBUG is not set +CONFIG_SCSI_MVSAS_TASKLET=y CONFIG_SCSI_DPT_I2O=m CONFIG_SCSI_ADVANSYS=m CONFIG_SCSI_ARCMSR=m @@ -1655,6 +1662,7 @@ CONFIG_R8169=m CONFIG_SIS190=m CONFIG_SKGE=m # CONFIG_SKGE_DEBUG is not set +CONFIG_SKGE_GENESIS=y CONFIG_SKY2=m # CONFIG_SKY2_DEBUG is not set CONFIG_VIA_VELOCITY=m @@ -1737,6 +1745,7 @@ CONFIG_CARL9170_LEDS=y # CONFIG_CARL9170_DEBUGFS is not set CONFIG_CARL9170_WPC=y CONFIG_B43=m +CONFIG_B43_SSB=y CONFIG_B43_PCI_AUTOSELECT=y CONFIG_B43_PCICORE_AUTOSELECT=y CONFIG_B43_SDIO=y @@ -1836,6 +1845,7 @@ CONFIG_RT2X00_LIB_DEBUGFS=y # CONFIG_RT2X00_DEBUG is not set CONFIG_RTL8192CE=m CONFIG_RTL8192SE=m +CONFIG_RTL8192DE=m CONFIG_RTL8192CU=m CONFIG_RTLWIFI=m CONFIG_RTL8192C_COMMON=m @@ -2118,12 +2128,15 @@ CONFIG_MOUSE_SYNAPTICS_I2C=m CONFIG_INPUT_MISC=y # CONFIG_INPUT_AD714X is not set CONFIG_INPUT_PCSPKR=m +# CONFIG_INPUT_MMA8450 is not set +# CONFIG_INPUT_MPU3050 is not set CONFIG_INPUT_APANEL=m CONFIG_INPUT_WISTRON_BTNS=m CONFIG_INPUT_ATLAS_BTNS=m CONFIG_INPUT_ATI_REMOTE=m CONFIG_INPUT_ATI_REMOTE2=m CONFIG_INPUT_KEYSPAN_REMOTE=m +# CONFIG_INPUT_KXTJ9 is not set CONFIG_INPUT_POWERMATE=m CONFIG_INPUT_YEALINK=m CONFIG_INPUT_CM109=m @@ -2330,7 +2343,7 @@ CONFIG_GPIO_SYSFS=y # # Memory mapped GPIO drivers: # -# CONFIG_GPIO_BASIC_MMIO is not set +# CONFIG_GPIO_GENERIC_PLATFORM is not set # CONFIG_GPIO_IT8761E is not set CONFIG_GPIO_SCH=m # CONFIG_GPIO_VX855 is not set @@ -2356,6 +2369,7 @@ CONFIG_GPIO_SCH=m # # SPI GPIO expanders: # +# CONFIG_GPIO_MCP23S08 is not set # # AC97 GPIO expanders: @@ -2464,17 +2478,21 @@ CONFIG_SENSORS_LTC4215=m CONFIG_SENSORS_LTC4245=m CONFIG_SENSORS_LTC4261=m CONFIG_SENSORS_LM95241=m +CONFIG_SENSORS_LM95245=m CONFIG_SENSORS_MAX16065=m CONFIG_SENSORS_MAX1619=m +CONFIG_SENSORS_MAX1668=m CONFIG_SENSORS_MAX6639=m CONFIG_SENSORS_MAX6642=m CONFIG_SENSORS_MAX6650=m +CONFIG_SENSORS_NTC_THERMISTOR=m CONFIG_SENSORS_PC87360=m CONFIG_SENSORS_PC87427=m CONFIG_SENSORS_PCF8591=m CONFIG_PMBUS=m CONFIG_SENSORS_PMBUS=m CONFIG_SENSORS_ADM1275=m +CONFIG_SENSORS_LM25066=m CONFIG_SENSORS_MAX16064=m CONFIG_SENSORS_MAX34440=m CONFIG_SENSORS_MAX8688=m @@ -2491,7 +2509,9 @@ CONFIG_SENSORS_EMC6W201=m CONFIG_SENSORS_SMSC47M1=m CONFIG_SENSORS_SMSC47M192=m CONFIG_SENSORS_SMSC47B397=m +CONFIG_SENSORS_SCH56XX_COMMON=m CONFIG_SENSORS_SCH5627=m +CONFIG_SENSORS_SCH5636=m CONFIG_SENSORS_ADS1015=m CONFIG_SENSORS_ADS7828=m CONFIG_SENSORS_AMC6821=m @@ -2523,6 +2543,7 @@ CONFIG_SENSORS_ATK0110=m CONFIG_THERMAL=y CONFIG_THERMAL_HWMON=y CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_CORE=y CONFIG_WATCHDOG_NOWAYOUT=y # @@ -2628,6 +2649,7 @@ CONFIG_VIDEO_DEV=m CONFIG_VIDEO_V4L2_COMMON=m CONFIG_VIDEO_V4L2_SUBDEV_API=y CONFIG_DVB_CORE=m +CONFIG_DVB_NET=y CONFIG_VIDEO_MEDIA=m # @@ -2644,6 +2666,7 @@ CONFIG_IR_RC6_DECODER=m CONFIG_IR_JVC_DECODER=m CONFIG_IR_SONY_DECODER=m CONFIG_IR_RC5_SZ_DECODER=m +CONFIG_IR_MCE_KBD_DECODER=m CONFIG_IR_LIRC_CODEC=m CONFIG_IR_ENE=m CONFIG_IR_IMON=m @@ -2676,6 +2699,7 @@ CONFIG_MEDIA_TUNER_MT2131=m CONFIG_MEDIA_TUNER_QT1010=m CONFIG_MEDIA_TUNER_XC2028=m CONFIG_MEDIA_TUNER_XC5000=m +CONFIG_MEDIA_TUNER_XC4000=m CONFIG_MEDIA_TUNER_MXL5005S=m CONFIG_MEDIA_TUNER_MXL5007T=m CONFIG_MEDIA_TUNER_MC44S803=m @@ -2692,6 +2716,9 @@ CONFIG_VIDEO_BTCX=m CONFIG_VIDEO_TVEEPROM=m CONFIG_VIDEO_TUNER=m CONFIG_VIDEOBUF2_CORE=m +CONFIG_VIDEOBUF2_MEMOPS=m +CONFIG_VIDEOBUF2_DMA_CONTIG=m +CONFIG_VIDEOBUF2_VMALLOC=m CONFIG_VIDEO_CAPTURE_DRIVERS=y # CONFIG_VIDEO_ADV_DEBUG is not set # CONFIG_VIDEO_FIXED_MINOR_RANGES is not set @@ -2757,6 +2784,10 @@ CONFIG_VIDEO_OV7670=m CONFIG_VIDEO_MT9V011=m # +# Flash devices +# + +# # Video improvement chips # CONFIG_VIDEO_UPD64031A=m @@ -2820,6 +2851,7 @@ CONFIG_SOC_CAMERA_RJ54N1=m CONFIG_SOC_CAMERA_TW9910=m CONFIG_SOC_CAMERA_PLATFORM=m CONFIG_SOC_CAMERA_OV2640=m +CONFIG_SOC_CAMERA_OV5642=m CONFIG_SOC_CAMERA_OV6650=m CONFIG_SOC_CAMERA_OV772X=m CONFIG_SOC_CAMERA_OV9640=m @@ -2848,6 +2880,7 @@ CONFIG_USB_GSPCA_OV534_9=m CONFIG_USB_GSPCA_PAC207=m CONFIG_USB_GSPCA_PAC7302=m CONFIG_USB_GSPCA_PAC7311=m +CONFIG_USB_GSPCA_SE401=m CONFIG_USB_GSPCA_SN9C2028=m CONFIG_USB_GSPCA_SN9C20X=m CONFIG_USB_GSPCA_SONIXB=m @@ -2879,6 +2912,7 @@ CONFIG_VIDEO_HDPVR=m CONFIG_VIDEO_EM28XX=m CONFIG_VIDEO_EM28XX_ALSA=m CONFIG_VIDEO_EM28XX_DVB=m +CONFIG_VIDEO_EM28XX_RC=y CONFIG_VIDEO_TLG2300=m CONFIG_VIDEO_CX231XX=m CONFIG_VIDEO_CX231XX_RC=y @@ -3022,6 +3056,11 @@ CONFIG_DVB_HOPPER=m CONFIG_DVB_NGENE=m # +# Supported ddbridge ('Octopus') Adapters +# +# CONFIG_DVB_DDBRIDGE is not set + +# # Supported DVB Frontends # CONFIG_DVB_FE_CUSTOMISE=y @@ -3039,6 +3078,12 @@ CONFIG_DVB_STV090x=m CONFIG_DVB_STV6110x=m # +# Multistandard (cable + terrestrial) frontends +# +CONFIG_DVB_DRXK=m +CONFIG_DVB_TDA18271C2DD=m + +# # DVB-S (satellite) frontends # CONFIG_DVB_CX24110=m @@ -3210,6 +3255,7 @@ CONFIG_FB_CIRRUS=m CONFIG_FB_VGA16=m # CONFIG_FB_UVESA is not set CONFIG_FB_VESA=y +CONFIG_FB_EFI=y # CONFIG_FB_N411 is not set # CONFIG_FB_HGA is not set # CONFIG_FB_S1D13XXX is not set @@ -3362,6 +3408,7 @@ CONFIG_SND_AC97_POWER_SAVE=y CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0 CONFIG_SND_SB_COMMON=m CONFIG_SND_SB16_DSP=m +CONFIG_SND_TEA575X=m CONFIG_SND_PCI=y CONFIG_SND_AD1889=m CONFIG_SND_ALS300=m @@ -3411,8 +3458,8 @@ CONFIG_SND_ES1968_INPUT=y CONFIG_SND_ES1968_RADIO=y CONFIG_SND_FM801=m CONFIG_SND_FM801_TEA575X_BOOL=y -CONFIG_SND_TEA575X=m CONFIG_SND_HDA_INTEL=m +CONFIG_SND_HDA_PREALLOC_SIZE=64 CONFIG_SND_HDA_HWDEP=y CONFIG_SND_HDA_RECONFIG=y CONFIG_SND_HDA_INPUT_BEEP=y @@ -3420,6 +3467,7 @@ CONFIG_SND_HDA_INPUT_BEEP_MODE=1 CONFIG_SND_HDA_INPUT_JACK=y # CONFIG_SND_HDA_PATCH_LOADER is not set CONFIG_SND_HDA_CODEC_REALTEK=y +CONFIG_SND_HDA_ENABLE_REALTEK_QUIRKS=y CONFIG_SND_HDA_CODEC_ANALOG=y CONFIG_SND_HDA_CODEC_SIGMATEL=y CONFIG_SND_HDA_CODEC_VIA=y @@ -3427,6 +3475,7 @@ CONFIG_SND_HDA_CODEC_HDMI=y CONFIG_SND_HDA_CODEC_CIRRUS=y CONFIG_SND_HDA_CODEC_CONEXANT=y CONFIG_SND_HDA_CODEC_CA0110=y +CONFIG_SND_HDA_CODEC_CA0132=y CONFIG_SND_HDA_CODEC_CMEDIA=y CONFIG_SND_HDA_CODEC_SI3054=y CONFIG_SND_HDA_GENERIC=y @@ -3498,6 +3547,7 @@ CONFIG_HID_CYPRESS=y # CONFIG_HID_EMS_FF is not set # CONFIG_HID_ELECOM is not set CONFIG_HID_EZKEY=y +# CONFIG_HID_HOLTEK is not set CONFIG_HID_KEYTOUCH=m CONFIG_HID_KYE=y # CONFIG_HID_UCLOGIC is not set @@ -3534,12 +3584,14 @@ CONFIG_HID_ROCCAT_KOVAPLUS=m CONFIG_HID_ROCCAT_PYRA=m CONFIG_HID_SAMSUNG=m # CONFIG_HID_SONY is not set +CONFIG_HID_SPEEDLINK=m CONFIG_HID_SUNPLUS=m # CONFIG_HID_GREENASIA is not set # CONFIG_HID_SMARTJOYPLUS is not set CONFIG_HID_TOPSEED=m # CONFIG_HID_THRUSTMASTER is not set # CONFIG_HID_WACOM is not set +# CONFIG_HID_WIIMOTE is not set # CONFIG_HID_ZEROPLUS is not set CONFIG_HID_ZYDACRON=m CONFIG_USB_SUPPORT=y @@ -3606,6 +3658,7 @@ CONFIG_USB_TMC=m CONFIG_USB_STORAGE=m # CONFIG_USB_STORAGE_DEBUG is not set CONFIG_USB_STORAGE_REALTEK=m +CONFIG_REALTEK_AUTOPM=y CONFIG_USB_STORAGE_DATAFAB=m CONFIG_USB_STORAGE_FREECOM=m CONFIG_USB_STORAGE_ISD200=m @@ -3801,7 +3854,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # -# CONFIG_NFC_DEVICES is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set CONFIG_EDAC=y @@ -3920,11 +3972,15 @@ CONFIG_UIO_AEC=m CONFIG_UIO_SERCOS3=m CONFIG_UIO_PCI_GENERIC=m # CONFIG_UIO_NETX is not set +CONFIG_VIRTIO=m +CONFIG_VIRTIO_RING=m + +# +# Virtio drivers +# +CONFIG_VIRTIO_PCI=m +CONFIG_VIRTIO_BALLOON=m CONFIG_STAGING=y -# CONFIG_DIGIEPCA is not set -# CONFIG_RISCOM8 is not set -# CONFIG_SPECIALIX is not set -# CONFIG_COMPUTONE is not set CONFIG_ET131X=m # CONFIG_ET131X_DEBUG is not set # CONFIG_SLICOSS is not set @@ -3974,7 +4030,6 @@ CONFIG_HYPERV_MOUSE=m # CONFIG_VME_BUS is not set # CONFIG_DX_SEP is not set # CONFIG_IIO is not set -# CONFIG_CS5535_GPIO is not set # CONFIG_XVMALLOC is not set # CONFIG_ZRAM is not set # CONFIG_ZCACHE is not set @@ -3986,7 +4041,6 @@ CONFIG_HYPERV_MOUSE=m # CONFIG_EASYCAP is not set # CONFIG_SOLO6X10 is not set # CONFIG_ACPI_QUICKSTART is not set -CONFIG_MACH_NO_WESTBRIDGE=y # CONFIG_ATH6K_LEGACY is not set # CONFIG_USB_ENESTORAGE is not set # CONFIG_BCM_WIMAX is not set @@ -3999,10 +4053,6 @@ CONFIG_MACH_NO_WESTBRIDGE=y # CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set # CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set # CONFIG_DRM_PSB is not set - -# -# Altera FPGA firmware download module -# # CONFIG_ALTERA_STAPL is not set # CONFIG_INTEL_MEI is not set CONFIG_X86_PLATFORM_DEVICES=y @@ -4049,7 +4099,17 @@ CONFIG_XO15_EBOOK=m CONFIG_SAMSUNG_LAPTOP=m CONFIG_MXM_WMI=m CONFIG_INTEL_OAKTRAIL=m +CONFIG_SAMSUNG_Q10=m CONFIG_CLKSRC_I8253=y +CONFIG_CLKEVT_I8253=y +CONFIG_I8253_LOCK=y +CONFIG_CLKBLD_I8253=y +CONFIG_IOMMU_API=y +CONFIG_IOMMU_SUPPORT=y +CONFIG_DMAR=y +CONFIG_DMAR_DEFAULT_ON=y +CONFIG_DMAR_FLOPPY_WA=y +CONFIG_VIRT_DRIVERS=y # # Firmware Drivers @@ -4057,6 +4117,7 @@ CONFIG_CLKSRC_I8253=y CONFIG_EDD=m # CONFIG_EDD_OFF is not set CONFIG_FIRMWARE_MEMMAP=y +CONFIG_EFI_VARS=y CONFIG_DELL_RBU=m CONFIG_DCDBAS=m CONFIG_DMIID=y @@ -4189,13 +4250,13 @@ CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y CONFIG_NFS_V4_1=y CONFIG_PNFS_FILE_LAYOUT=m +CONFIG_PNFS_BLOCK=m CONFIG_PNFS_OBJLAYOUT=m CONFIG_NFS_FSCACHE=y # CONFIG_NFS_USE_LEGACY_DNS is not set CONFIG_NFS_USE_KERNEL_DNS=y # CONFIG_NFS_USE_NEW_IDMAPPER is not set CONFIG_NFSD=m -# CONFIG_NFSD_DEPRECATED is not set CONFIG_NFSD_V2_ACL=y CONFIG_NFSD_V3=y CONFIG_NFSD_V3_ACL=y @@ -4206,6 +4267,7 @@ CONFIG_NFS_ACL_SUPPORT=m CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m CONFIG_SUNRPC_GSS=m +CONFIG_SUNRPC_BACKCHANNEL=y CONFIG_RPCSEC_GSS_KRB5=m # CONFIG_CEPH_FS is not set CONFIG_CIFS=m @@ -4327,7 +4389,7 @@ CONFIG_TIMER_STATS=y # CONFIG_PROVE_LOCKING is not set # CONFIG_SPARSE_RCU_POINTER is not set # CONFIG_LOCK_STAT is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_ATOMIC_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set CONFIG_STACKTRACE=y # CONFIG_DEBUG_STACK_USAGE is not set @@ -4741,10 +4803,6 @@ CONFIG_KVM_AMD=m CONFIG_KVM_MMU_AUDIT=y CONFIG_VHOST_NET=m # CONFIG_LGUEST is not set -CONFIG_VIRTIO=m -CONFIG_VIRTIO_RING=m -CONFIG_VIRTIO_PCI=m -CONFIG_VIRTIO_BALLOON=m CONFIG_BINARY_PRINTF=y # @@ -4760,6 +4818,7 @@ CONFIG_CRC_ITU_T=m CONFIG_CRC32=y CONFIG_CRC7=m CONFIG_LIBCRC32C=m +CONFIG_CRC8=m CONFIG_AUDIT_GENERIC=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=m @@ -4779,6 +4838,7 @@ CONFIG_DECOMPRESS_BZIP2=y CONFIG_DECOMPRESS_LZMA=y CONFIG_DECOMPRESS_XZ=y CONFIG_DECOMPRESS_LZO=y +CONFIG_GENERIC_ALLOCATOR=y CONFIG_TEXTSEARCH=y CONFIG_TEXTSEARCH_KMP=m CONFIG_TEXTSEARCH_BM=m @@ -4790,3 +4850,5 @@ CONFIG_CHECK_SIGNATURE=y CONFIG_CPU_RMAP=y CONFIG_NLATTR=y CONFIG_AVERAGE=y +CONFIG_CORDIC=m +CONFIG_LLIST=y diff --git a/kernel/config.i686-PAE b/kernel/config.i686-PAE index 2b374db..6344c96 100644 --- a/kernel/config.i686-PAE +++ b/kernel/config.i686-PAE @@ -1,6 +1,6 @@ # -# Automatically generated make config: don't edit -# Linux/i386 3.0.4-9.ip3.i686.PAE Kernel Configuration +# Automatically generated file; DO NOT EDIT. +# Linux/i386 3.1.1-1.ip3.i686.PAE Kernel Configuration # # CONFIG_64BIT is not set CONFIG_X86_32=y @@ -163,6 +163,7 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_PCSPKR_PLATFORM=y +CONFIG_HAVE_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y @@ -207,6 +208,7 @@ CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_ARCH_JUMP_LABEL=y +CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y # # GCOV-based kernel profiling @@ -226,6 +228,7 @@ CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y CONFIG_LBDAF=y CONFIG_BLK_DEV_BSG=y +CONFIG_BLK_DEV_BSGLIB=y CONFIG_BLK_DEV_INTEGRITY=y CONFIG_BLK_DEV_THROTTLING=y @@ -284,13 +287,14 @@ CONFIG_SMP=y CONFIG_X86_MPPARSE=y CONFIG_X86_BIGSMP=y CONFIG_X86_EXTENDED_PLATFORM=y -# CONFIG_X86_MRST is not set +# CONFIG_X86_INTEL_MID is not set # CONFIG_X86_RDC321X is not set # CONFIG_X86_32_NON_STANDARD is not set CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y # CONFIG_X86_32_IRIS is not set CONFIG_SCHED_OMIT_FRAME_POINTER=y CONFIG_PARAVIRT_GUEST=y +CONFIG_PARAVIRT_TIME_ACCOUNTING=y # CONFIG_XEN is not set # CONFIG_XEN_PRIVILEGED_GUEST is not set CONFIG_KVM_CLOCK=y @@ -331,6 +335,7 @@ CONFIG_X86_GENERIC=y CONFIG_X86_INTERNODE_CACHE_SHIFT=7 CONFIG_X86_CMPXCHG=y CONFIG_CMPXCHG_LOCAL=y +CONFIG_CMPXCHG_DOUBLE=y CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_XADD=y CONFIG_X86_PPRO_FENCE=y @@ -356,7 +361,6 @@ CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y # CONFIG_IOMMU_HELPER is not set -CONFIG_IOMMU_API=y CONFIG_NR_CPUS=256 CONFIG_SCHED_SMT=y CONFIG_SCHED_MC=y @@ -442,7 +446,7 @@ CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1 CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1 CONFIG_X86_PAT=y CONFIG_ARCH_USES_PG_UNCACHED=y -# CONFIG_EFI is not set +CONFIG_EFI=y CONFIG_SECCOMP=y # CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set @@ -500,11 +504,12 @@ CONFIG_ACPI_PCI_SLOT=y CONFIG_X86_PM_TIMER=y CONFIG_ACPI_CONTAINER=y CONFIG_ACPI_SBS=m -CONFIG_ACPI_HED=m +CONFIG_ACPI_HED=y CONFIG_ACPI_CUSTOM_METHOD=m CONFIG_ACPI_APEI=y -CONFIG_ACPI_APEI_GHES=m +CONFIG_ACPI_APEI_GHES=y CONFIG_ACPI_APEI_PCIEAER=y +CONFIG_ACPI_APEI_MEMORY_FAILURE=y # CONFIG_ACPI_APEI_EINJ is not set # CONFIG_ACPI_APEI_ERST_DEBUG is not set CONFIG_SFI=y @@ -575,9 +580,6 @@ CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y # CONFIG_PCI_CNB20LE_QUIRK is not set -CONFIG_DMAR=y -CONFIG_DMAR_DEFAULT_ON=y -CONFIG_DMAR_FLOPPY_WA=y CONFIG_PCIEPORTBUS=y CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_PCIEAER=y @@ -842,6 +844,7 @@ CONFIG_IP_SET_HASH_IPPORTIP=m CONFIG_IP_SET_HASH_IPPORTNET=m CONFIG_IP_SET_HASH_NET=m CONFIG_IP_SET_HASH_NETPORT=m +CONFIG_IP_SET_HASH_NETIFACE=m CONFIG_IP_SET_LIST_SET=m CONFIG_IP_VS=m CONFIG_IP_VS_IPV6=y @@ -1153,6 +1156,7 @@ CONFIG_RFKILL_INPUT=y # CONFIG_NET_9P is not set # CONFIG_CAIF is not set # CONFIG_CEPH_LIB is not set +# CONFIG_NFC is not set # # Device Drivers @@ -1201,6 +1205,7 @@ CONFIG_BLK_DEV_DAC960=m CONFIG_BLK_DEV_UMEM=m # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 CONFIG_BLK_DEV_CRYPTOLOOP=m # CONFIG_BLK_DEV_DRBD is not set # CONFIG_BLK_DEV_NBD is not set @@ -1241,6 +1246,7 @@ CONFIG_DS1682=m CONFIG_VMWARE_BALLOON=m # CONFIG_BMP085 is not set CONFIG_PCH_PHUB=m +CONFIG_USB_SWITCH_FSA9480=m # CONFIG_C2PORT is not set # @@ -1335,6 +1341,7 @@ CONFIG_SCSI_AIC94XX=m # CONFIG_AIC94XX_DEBUG is not set CONFIG_SCSI_MVSAS=m # CONFIG_SCSI_MVSAS_DEBUG is not set +CONFIG_SCSI_MVSAS_TASKLET=y CONFIG_SCSI_DPT_I2O=m CONFIG_SCSI_ADVANSYS=m CONFIG_SCSI_ARCMSR=m @@ -1670,6 +1677,7 @@ CONFIG_R8169=m CONFIG_SIS190=m CONFIG_SKGE=m # CONFIG_SKGE_DEBUG is not set +CONFIG_SKGE_GENESIS=y CONFIG_SKY2=m # CONFIG_SKY2_DEBUG is not set CONFIG_VIA_VELOCITY=m @@ -1752,6 +1760,7 @@ CONFIG_CARL9170_LEDS=y # CONFIG_CARL9170_DEBUGFS is not set CONFIG_CARL9170_WPC=y CONFIG_B43=m +CONFIG_B43_SSB=y CONFIG_B43_PCI_AUTOSELECT=y CONFIG_B43_PCICORE_AUTOSELECT=y CONFIG_B43_SDIO=y @@ -1851,6 +1860,7 @@ CONFIG_RT2X00_LIB_DEBUGFS=y # CONFIG_RT2X00_DEBUG is not set CONFIG_RTL8192CE=m CONFIG_RTL8192SE=m +CONFIG_RTL8192DE=m CONFIG_RTL8192CU=m CONFIG_RTLWIFI=m CONFIG_RTL8192C_COMMON=m @@ -2133,12 +2143,15 @@ CONFIG_MOUSE_SYNAPTICS_I2C=m CONFIG_INPUT_MISC=y # CONFIG_INPUT_AD714X is not set CONFIG_INPUT_PCSPKR=m +# CONFIG_INPUT_MMA8450 is not set +# CONFIG_INPUT_MPU3050 is not set CONFIG_INPUT_APANEL=m CONFIG_INPUT_WISTRON_BTNS=m CONFIG_INPUT_ATLAS_BTNS=m CONFIG_INPUT_ATI_REMOTE=m CONFIG_INPUT_ATI_REMOTE2=m CONFIG_INPUT_KEYSPAN_REMOTE=m +# CONFIG_INPUT_KXTJ9 is not set CONFIG_INPUT_POWERMATE=m CONFIG_INPUT_YEALINK=m CONFIG_INPUT_CM109=m @@ -2345,7 +2358,7 @@ CONFIG_GPIO_SYSFS=y # # Memory mapped GPIO drivers: # -# CONFIG_GPIO_BASIC_MMIO is not set +# CONFIG_GPIO_GENERIC_PLATFORM is not set # CONFIG_GPIO_IT8761E is not set CONFIG_GPIO_SCH=m # CONFIG_GPIO_VX855 is not set @@ -2371,6 +2384,7 @@ CONFIG_GPIO_SCH=m # # SPI GPIO expanders: # +# CONFIG_GPIO_MCP23S08 is not set # # AC97 GPIO expanders: @@ -2479,17 +2493,21 @@ CONFIG_SENSORS_LTC4215=m CONFIG_SENSORS_LTC4245=m CONFIG_SENSORS_LTC4261=m CONFIG_SENSORS_LM95241=m +CONFIG_SENSORS_LM95245=m CONFIG_SENSORS_MAX16065=m CONFIG_SENSORS_MAX1619=m +CONFIG_SENSORS_MAX1668=m CONFIG_SENSORS_MAX6639=m CONFIG_SENSORS_MAX6642=m CONFIG_SENSORS_MAX6650=m +CONFIG_SENSORS_NTC_THERMISTOR=m CONFIG_SENSORS_PC87360=m CONFIG_SENSORS_PC87427=m CONFIG_SENSORS_PCF8591=m CONFIG_PMBUS=m CONFIG_SENSORS_PMBUS=m CONFIG_SENSORS_ADM1275=m +CONFIG_SENSORS_LM25066=m CONFIG_SENSORS_MAX16064=m CONFIG_SENSORS_MAX34440=m CONFIG_SENSORS_MAX8688=m @@ -2506,7 +2524,9 @@ CONFIG_SENSORS_EMC6W201=m CONFIG_SENSORS_SMSC47M1=m CONFIG_SENSORS_SMSC47M192=m CONFIG_SENSORS_SMSC47B397=m +CONFIG_SENSORS_SCH56XX_COMMON=m CONFIG_SENSORS_SCH5627=m +CONFIG_SENSORS_SCH5636=m CONFIG_SENSORS_ADS1015=m CONFIG_SENSORS_ADS7828=m CONFIG_SENSORS_AMC6821=m @@ -2538,6 +2558,7 @@ CONFIG_SENSORS_ATK0110=m CONFIG_THERMAL=y CONFIG_THERMAL_HWMON=y CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_CORE=y CONFIG_WATCHDOG_NOWAYOUT=y # @@ -2643,6 +2664,7 @@ CONFIG_VIDEO_DEV=m CONFIG_VIDEO_V4L2_COMMON=m CONFIG_VIDEO_V4L2_SUBDEV_API=y CONFIG_DVB_CORE=m +CONFIG_DVB_NET=y CONFIG_VIDEO_MEDIA=m # @@ -2659,6 +2681,7 @@ CONFIG_IR_RC6_DECODER=m CONFIG_IR_JVC_DECODER=m CONFIG_IR_SONY_DECODER=m CONFIG_IR_RC5_SZ_DECODER=m +CONFIG_IR_MCE_KBD_DECODER=m CONFIG_IR_LIRC_CODEC=m CONFIG_IR_ENE=m CONFIG_IR_IMON=m @@ -2691,6 +2714,7 @@ CONFIG_MEDIA_TUNER_MT2131=m CONFIG_MEDIA_TUNER_QT1010=m CONFIG_MEDIA_TUNER_XC2028=m CONFIG_MEDIA_TUNER_XC5000=m +CONFIG_MEDIA_TUNER_XC4000=m CONFIG_MEDIA_TUNER_MXL5005S=m CONFIG_MEDIA_TUNER_MXL5007T=m CONFIG_MEDIA_TUNER_MC44S803=m @@ -2707,6 +2731,9 @@ CONFIG_VIDEO_BTCX=m CONFIG_VIDEO_TVEEPROM=m CONFIG_VIDEO_TUNER=m CONFIG_VIDEOBUF2_CORE=m +CONFIG_VIDEOBUF2_MEMOPS=m +CONFIG_VIDEOBUF2_DMA_CONTIG=m +CONFIG_VIDEOBUF2_VMALLOC=m CONFIG_VIDEO_CAPTURE_DRIVERS=y # CONFIG_VIDEO_ADV_DEBUG is not set # CONFIG_VIDEO_FIXED_MINOR_RANGES is not set @@ -2772,6 +2799,10 @@ CONFIG_VIDEO_OV7670=m CONFIG_VIDEO_MT9V011=m # +# Flash devices +# + +# # Video improvement chips # CONFIG_VIDEO_UPD64031A=m @@ -2835,6 +2866,7 @@ CONFIG_SOC_CAMERA_RJ54N1=m CONFIG_SOC_CAMERA_TW9910=m CONFIG_SOC_CAMERA_PLATFORM=m CONFIG_SOC_CAMERA_OV2640=m +CONFIG_SOC_CAMERA_OV5642=m CONFIG_SOC_CAMERA_OV6650=m CONFIG_SOC_CAMERA_OV772X=m CONFIG_SOC_CAMERA_OV9640=m @@ -2863,6 +2895,7 @@ CONFIG_USB_GSPCA_OV534_9=m CONFIG_USB_GSPCA_PAC207=m CONFIG_USB_GSPCA_PAC7302=m CONFIG_USB_GSPCA_PAC7311=m +CONFIG_USB_GSPCA_SE401=m CONFIG_USB_GSPCA_SN9C2028=m CONFIG_USB_GSPCA_SN9C20X=m CONFIG_USB_GSPCA_SONIXB=m @@ -2894,6 +2927,7 @@ CONFIG_VIDEO_HDPVR=m CONFIG_VIDEO_EM28XX=m CONFIG_VIDEO_EM28XX_ALSA=m CONFIG_VIDEO_EM28XX_DVB=m +CONFIG_VIDEO_EM28XX_RC=y CONFIG_VIDEO_TLG2300=m CONFIG_VIDEO_CX231XX=m CONFIG_VIDEO_CX231XX_RC=y @@ -3037,6 +3071,11 @@ CONFIG_DVB_HOPPER=m CONFIG_DVB_NGENE=m # +# Supported ddbridge ('Octopus') Adapters +# +# CONFIG_DVB_DDBRIDGE is not set + +# # Supported DVB Frontends # CONFIG_DVB_FE_CUSTOMISE=y @@ -3054,6 +3093,12 @@ CONFIG_DVB_STV090x=m CONFIG_DVB_STV6110x=m # +# Multistandard (cable + terrestrial) frontends +# +CONFIG_DVB_DRXK=m +CONFIG_DVB_TDA18271C2DD=m + +# # DVB-S (satellite) frontends # CONFIG_DVB_CX24110=m @@ -3225,6 +3270,7 @@ CONFIG_FB_CIRRUS=m CONFIG_FB_VGA16=m # CONFIG_FB_UVESA is not set CONFIG_FB_VESA=y +CONFIG_FB_EFI=y # CONFIG_FB_N411 is not set # CONFIG_FB_HGA is not set # CONFIG_FB_S1D13XXX is not set @@ -3377,6 +3423,7 @@ CONFIG_SND_AC97_POWER_SAVE=y CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0 CONFIG_SND_SB_COMMON=m CONFIG_SND_SB16_DSP=m +CONFIG_SND_TEA575X=m CONFIG_SND_PCI=y CONFIG_SND_AD1889=m CONFIG_SND_ALS300=m @@ -3426,8 +3473,8 @@ CONFIG_SND_ES1968_INPUT=y CONFIG_SND_ES1968_RADIO=y CONFIG_SND_FM801=m CONFIG_SND_FM801_TEA575X_BOOL=y -CONFIG_SND_TEA575X=m CONFIG_SND_HDA_INTEL=m +CONFIG_SND_HDA_PREALLOC_SIZE=64 CONFIG_SND_HDA_HWDEP=y CONFIG_SND_HDA_RECONFIG=y CONFIG_SND_HDA_INPUT_BEEP=y @@ -3435,6 +3482,7 @@ CONFIG_SND_HDA_INPUT_BEEP_MODE=1 CONFIG_SND_HDA_INPUT_JACK=y # CONFIG_SND_HDA_PATCH_LOADER is not set CONFIG_SND_HDA_CODEC_REALTEK=y +CONFIG_SND_HDA_ENABLE_REALTEK_QUIRKS=y CONFIG_SND_HDA_CODEC_ANALOG=y CONFIG_SND_HDA_CODEC_SIGMATEL=y CONFIG_SND_HDA_CODEC_VIA=y @@ -3442,6 +3490,7 @@ CONFIG_SND_HDA_CODEC_HDMI=y CONFIG_SND_HDA_CODEC_CIRRUS=y CONFIG_SND_HDA_CODEC_CONEXANT=y CONFIG_SND_HDA_CODEC_CA0110=y +CONFIG_SND_HDA_CODEC_CA0132=y CONFIG_SND_HDA_CODEC_CMEDIA=y CONFIG_SND_HDA_CODEC_SI3054=y CONFIG_SND_HDA_GENERIC=y @@ -3513,6 +3562,7 @@ CONFIG_HID_CYPRESS=y # CONFIG_HID_EMS_FF is not set # CONFIG_HID_ELECOM is not set CONFIG_HID_EZKEY=y +# CONFIG_HID_HOLTEK is not set CONFIG_HID_KEYTOUCH=m CONFIG_HID_KYE=y # CONFIG_HID_UCLOGIC is not set @@ -3549,12 +3599,14 @@ CONFIG_HID_ROCCAT_KOVAPLUS=m CONFIG_HID_ROCCAT_PYRA=m CONFIG_HID_SAMSUNG=m # CONFIG_HID_SONY is not set +CONFIG_HID_SPEEDLINK=m CONFIG_HID_SUNPLUS=m # CONFIG_HID_GREENASIA is not set # CONFIG_HID_SMARTJOYPLUS is not set CONFIG_HID_TOPSEED=m # CONFIG_HID_THRUSTMASTER is not set # CONFIG_HID_WACOM is not set +# CONFIG_HID_WIIMOTE is not set # CONFIG_HID_ZEROPLUS is not set CONFIG_HID_ZYDACRON=m CONFIG_USB_SUPPORT=y @@ -3621,6 +3673,7 @@ CONFIG_USB_TMC=m CONFIG_USB_STORAGE=m # CONFIG_USB_STORAGE_DEBUG is not set CONFIG_USB_STORAGE_REALTEK=m +CONFIG_REALTEK_AUTOPM=y CONFIG_USB_STORAGE_DATAFAB=m CONFIG_USB_STORAGE_FREECOM=m CONFIG_USB_STORAGE_ISD200=m @@ -3816,7 +3869,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # -# CONFIG_NFC_DEVICES is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set CONFIG_EDAC=y @@ -3935,11 +3987,15 @@ CONFIG_UIO_AEC=m CONFIG_UIO_SERCOS3=m CONFIG_UIO_PCI_GENERIC=m # CONFIG_UIO_NETX is not set +CONFIG_VIRTIO=m +CONFIG_VIRTIO_RING=m + +# +# Virtio drivers +# +CONFIG_VIRTIO_PCI=m +CONFIG_VIRTIO_BALLOON=m CONFIG_STAGING=y -# CONFIG_DIGIEPCA is not set -# CONFIG_RISCOM8 is not set -# CONFIG_SPECIALIX is not set -# CONFIG_COMPUTONE is not set CONFIG_ET131X=m # CONFIG_ET131X_DEBUG is not set # CONFIG_SLICOSS is not set @@ -3989,7 +4045,6 @@ CONFIG_HYPERV_MOUSE=m # CONFIG_VME_BUS is not set # CONFIG_DX_SEP is not set # CONFIG_IIO is not set -# CONFIG_CS5535_GPIO is not set # CONFIG_XVMALLOC is not set # CONFIG_ZRAM is not set # CONFIG_ZCACHE is not set @@ -4001,7 +4056,6 @@ CONFIG_HYPERV_MOUSE=m # CONFIG_EASYCAP is not set # CONFIG_SOLO6X10 is not set # CONFIG_ACPI_QUICKSTART is not set -CONFIG_MACH_NO_WESTBRIDGE=y # CONFIG_ATH6K_LEGACY is not set # CONFIG_USB_ENESTORAGE is not set # CONFIG_BCM_WIMAX is not set @@ -4014,10 +4068,6 @@ CONFIG_MACH_NO_WESTBRIDGE=y # CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set # CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set # CONFIG_DRM_PSB is not set - -# -# Altera FPGA firmware download module -# # CONFIG_ALTERA_STAPL is not set # CONFIG_INTEL_MEI is not set CONFIG_X86_PLATFORM_DEVICES=y @@ -4064,7 +4114,17 @@ CONFIG_XO15_EBOOK=m CONFIG_SAMSUNG_LAPTOP=m CONFIG_MXM_WMI=m CONFIG_INTEL_OAKTRAIL=m +CONFIG_SAMSUNG_Q10=m CONFIG_CLKSRC_I8253=y +CONFIG_CLKEVT_I8253=y +CONFIG_I8253_LOCK=y +CONFIG_CLKBLD_I8253=y +CONFIG_IOMMU_API=y +CONFIG_IOMMU_SUPPORT=y +CONFIG_DMAR=y +CONFIG_DMAR_DEFAULT_ON=y +CONFIG_DMAR_FLOPPY_WA=y +CONFIG_VIRT_DRIVERS=y # # Firmware Drivers @@ -4072,6 +4132,7 @@ CONFIG_CLKSRC_I8253=y CONFIG_EDD=m # CONFIG_EDD_OFF is not set CONFIG_FIRMWARE_MEMMAP=y +CONFIG_EFI_VARS=y CONFIG_DELL_RBU=m CONFIG_DCDBAS=m CONFIG_DMIID=y @@ -4204,13 +4265,13 @@ CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y CONFIG_NFS_V4_1=y CONFIG_PNFS_FILE_LAYOUT=m +CONFIG_PNFS_BLOCK=m CONFIG_PNFS_OBJLAYOUT=m CONFIG_NFS_FSCACHE=y # CONFIG_NFS_USE_LEGACY_DNS is not set CONFIG_NFS_USE_KERNEL_DNS=y # CONFIG_NFS_USE_NEW_IDMAPPER is not set CONFIG_NFSD=m -# CONFIG_NFSD_DEPRECATED is not set CONFIG_NFSD_V2_ACL=y CONFIG_NFSD_V3=y CONFIG_NFSD_V3_ACL=y @@ -4221,6 +4282,7 @@ CONFIG_NFS_ACL_SUPPORT=m CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m CONFIG_SUNRPC_GSS=m +CONFIG_SUNRPC_BACKCHANNEL=y CONFIG_RPCSEC_GSS_KRB5=m # CONFIG_CEPH_FS is not set CONFIG_CIFS=m @@ -4342,7 +4404,7 @@ CONFIG_TIMER_STATS=y # CONFIG_PROVE_LOCKING is not set # CONFIG_SPARSE_RCU_POINTER is not set # CONFIG_LOCK_STAT is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_ATOMIC_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set CONFIG_STACKTRACE=y # CONFIG_DEBUG_STACK_USAGE is not set @@ -4757,10 +4819,6 @@ CONFIG_KVM_AMD=m CONFIG_KVM_MMU_AUDIT=y CONFIG_VHOST_NET=m # CONFIG_LGUEST is not set -CONFIG_VIRTIO=m -CONFIG_VIRTIO_RING=m -CONFIG_VIRTIO_PCI=m -CONFIG_VIRTIO_BALLOON=m CONFIG_BINARY_PRINTF=y # @@ -4776,6 +4834,7 @@ CONFIG_CRC_ITU_T=m CONFIG_CRC32=y CONFIG_CRC7=m CONFIG_LIBCRC32C=m +CONFIG_CRC8=m CONFIG_AUDIT_GENERIC=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=m @@ -4795,6 +4854,7 @@ CONFIG_DECOMPRESS_BZIP2=y CONFIG_DECOMPRESS_LZMA=y CONFIG_DECOMPRESS_XZ=y CONFIG_DECOMPRESS_LZO=y +CONFIG_GENERIC_ALLOCATOR=y CONFIG_TEXTSEARCH=y CONFIG_TEXTSEARCH_KMP=m CONFIG_TEXTSEARCH_BM=m @@ -4806,3 +4866,5 @@ CONFIG_CHECK_SIGNATURE=y CONFIG_CPU_RMAP=y CONFIG_NLATTR=y CONFIG_AVERAGE=y +CONFIG_CORDIC=m +CONFIG_LLIST=y diff --git a/kernel/kernel.nm b/kernel/kernel.nm index c8b1b45..0db132d 100644 --- a/kernel/kernel.nm +++ b/kernel/kernel.nm @@ -4,8 +4,8 @@ ############################################################################### name = kernel -version = 3.0.4 -release = 11 +version = 3.1.1 +release = 1 thisapp = linux-%{version} maintainer = Michael Tremer <michael.tremer(a)ipfire.org> @@ -37,10 +37,12 @@ build requires binutils-devel elfutils-devel + gettext module-init-tools ncurses-devel net-tools newt-devel + pciutils-devel perl python-devel slang-devel @@ -138,8 +140,8 @@ build # Install modules. make ARCH=%{kernel_arch} INSTALL_MOD_PATH=%{BUILDROOT} mod-fw= \ KERNELRELEASE=${fullversion} modules_install - #make ARCH=%{kernel_arch} INSTALL_MOD_PATH=%{BUILDROOT} \ - # KERNELRELEASE=${fullversion} vdso_install + make ARCH=%{kernel_arch} INSTALL_MOD_PATH=%{BUILDROOT} \ + KERNELRELEASE=${fullversion} vdso_install # Create an empty settings file for dracut mkdir -pv %{BUILDROOT}/etc/ld.so.conf.d @@ -195,6 +197,15 @@ build for kernel in %{kernels}; do build_kernel ${kernel} done + + # Build tools. + # cpupower + chmod +x tools/power/cpupower/utils/version-gen.sh + make -C tools/power/cpupower CPUFREQ_BENCH=false %{PARALLELISMFLAGS} + + cd tools/power/cpupower/debug/i386 + make %{PARALLELISMFLAGS} centrino-decode powernow-k8-decode + cd - end install @@ -218,6 +229,15 @@ build make -C tools/perf DESTDIR=%{BUILDROOT} \ HAVE_CPLUS_DEMANGLE=1 prefix=/usr perfexecdir=lib/perf-core \ install #install-man + + # cpupower + make -C tools/power/cpupower DESTDIR=%{BUILDROOT} libdir=/usr/lib \ + mandir=/usr/share/man CPUFREQ_BENCH=false install + cd tools/power/cpupower/debug/i386 + install -m 755 centrino-decode %{BUILDROOT}/usr/bin/centrino-decode + install -m 755 powernow-k8-decode %{BUILDROOT}/usr/bin/powernow-k8-decode + cd - + chmod 0755 %{BUILDROOT}/usr/lib/libcpupower.so* end end diff --git a/kernel/patches/grsecurity-2.2.2-3.0.4-201109261052.patch b/kernel/patches/grsecurity-2.2.2-3.0.4-201109261052.patch deleted file mode 100644 index cce98cf..0000000 --- a/kernel/patches/grsecurity-2.2.2-3.0.4-201109261052.patch +++ /dev/null @@ -1,74263 +0,0 @@ -diff -urNp linux-3.0.4/arch/alpha/include/asm/elf.h linux-3.0.4/arch/alpha/include/asm/elf.h ---- linux-3.0.4/arch/alpha/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -90,6 +90,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - - #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 -urNp linux-3.0.4/arch/alpha/include/asm/pgtable.h linux-3.0.4/arch/alpha/include/asm/pgtable.h ---- linux-3.0.4/arch/alpha/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -101,6 +101,17 @@ 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 -urNp linux-3.0.4/arch/alpha/kernel/module.c linux-3.0.4/arch/alpha/kernel/module.c ---- linux-3.0.4/arch/alpha/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, - - /* 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 -urNp linux-3.0.4/arch/alpha/kernel/osf_sys.c linux-3.0.4/arch/alpha/kernel/osf_sys.c ---- linux-3.0.4/arch/alpha/kernel/osf_sys.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/kernel/osf_sys.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1145,7 +1145,7 @@ arch_get_unmapped_area_1(unsigned long a - /* 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; -@@ -1181,6 +1181,10 @@ arch_get_unmapped_area(struct file *filp - 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) -@@ -1188,8 +1192,8 @@ arch_get_unmapped_area(struct file *filp - } - - /* 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 -urNp linux-3.0.4/arch/alpha/mm/fault.c linux-3.0.4/arch/alpha/mm/fault.c ---- linux-3.0.4/arch/alpha/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct * - __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(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, -@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns - 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 -urNp linux-3.0.4/arch/arm/include/asm/elf.h linux-3.0.4/arch/arm/include/asm/elf.h ---- linux-3.0.4/arch/arm/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *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 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 -@@ -126,10 +133,6 @@ int dump_task_regs(struct task_struct *t - 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 -- - extern int vectors_user_mapping(void); - #define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping() - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES -diff -urNp linux-3.0.4/arch/arm/include/asm/kmap_types.h linux-3.0.4/arch/arm/include/asm/kmap_types.h ---- linux-3.0.4/arch/arm/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -21,6 +21,7 @@ enum km_type { - KM_L1_CACHE, - KM_L2_CACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/arm/include/asm/uaccess.h linux-3.0.4/arch/arm/include/asm/uaccess.h ---- linux-3.0.4/arch/arm/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 __strn - - 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 - - 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 -urNp linux-3.0.4/arch/arm/kernel/armksyms.c linux-3.0.4/arch/arm/kernel/armksyms.c ---- linux-3.0.4/arch/arm/kernel/armksyms.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/armksyms.c 2011-08-23 21:47:55.000000000 -0400 -@@ -98,8 +98,8 @@ 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 -urNp linux-3.0.4/arch/arm/kernel/process.c linux-3.0.4/arch/arm/kernel/process.c ---- linux-3.0.4/arch/arm/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 <asm/cacheflush.h> -@@ -479,12 +478,6 @@ unsigned long get_wchan(struct task_stru - 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 -urNp linux-3.0.4/arch/arm/kernel/traps.c linux-3.0.4/arch/arm/kernel/traps.c ---- linux-3.0.4/arch/arm/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/traps.c 2011-08-23 21:48:14.000000000 -0400 -@@ -257,6 +257,8 @@ static int __die(const char *str, int er - - static DEFINE_SPINLOCK(die_lock); - -+extern void gr_handle_kernel_exploit(void); -+ - /* - * This function is protected against re-entrancy. - */ -@@ -284,6 +286,9 @@ void die(const char *str, struct pt_regs - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -+ -+ gr_handle_kernel_exploit(); -+ - if (ret != NOTIFY_STOP) - do_exit(SIGSEGV); - } -diff -urNp linux-3.0.4/arch/arm/lib/copy_from_user.S linux-3.0.4/arch/arm/lib/copy_from_user.S ---- linux-3.0.4/arch/arm/lib/copy_from_user.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/copy_from_user.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/arm/lib/copy_to_user.S linux-3.0.4/arch/arm/lib/copy_to_user.S ---- linux-3.0.4/arch/arm/lib/copy_to_user.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/copy_to_user.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/arm/lib/uaccess.S linux-3.0.4/arch/arm/lib/uaccess.S ---- linux-3.0.4/arch/arm/lib/uaccess.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/uaccess.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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( T(strgtb) r3, [r0], #1) @ May f - 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( T(strgeb) r3, [r0], #1) @ May f - ldrgtb r3, [r1], #0 - USER( T(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( T(ldrgtb) r3, [r1], #1) @ May f - 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( T(ldrgeb) r3, [r1], #1) @ May f - USER( T(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 -urNp linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c ---- linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -103,7 +103,7 @@ 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 -urNp linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c ---- linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c 2011-08-23 21:48:14.000000000 -0400 -@@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct dev - return sprintf(buf, "0x%X\n", mbox_value); - } - --static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo); -+static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo); - - static int mbox_show(struct seq_file *s, void *data) - { -diff -urNp linux-3.0.4/arch/arm/mm/fault.c linux-3.0.4/arch/arm/mm/fault.c ---- linux-3.0.4/arch/arm/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,6 +182,13 @@ __do_user_fault(struct task_struct *tsk, - } - #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; -@@ -379,6 +386,33 @@ do_page_fault(unsigned long addr, unsign - } - #endif /* CONFIG_MMU */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(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 - * -diff -urNp linux-3.0.4/arch/arm/mm/mmap.c linux-3.0.4/arch/arm/mm/mmap.c ---- linux-3.0.4/arch/arm/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,10 @@ arch_get_unmapped_area(struct file *filp - 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); -@@ -72,15 +76,14 @@ arch_get_unmapped_area(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(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; - } - /* 8 bits of randomness in 20 address space bits */ - if ((current->flags & PF_RANDOMIZE) && -@@ -100,14 +103,14 @@ 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: - */ -diff -urNp linux-3.0.4/arch/avr32/include/asm/elf.h linux-3.0.4/arch/avr32/include/asm/elf.h ---- linux-3.0.4/arch/avr32/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpreg - 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 -urNp linux-3.0.4/arch/avr32/include/asm/kmap_types.h linux-3.0.4/arch/avr32/include/asm/kmap_types.h ---- linux-3.0.4/arch/avr32/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/avr32/mm/fault.c linux-3.0.4/arch/avr32/mm/fault.c ---- linux-3.0.4/arch/avr32/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru - - int exception_trace = 1; - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(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 -urNp linux-3.0.4/arch/frv/include/asm/kmap_types.h linux-3.0.4/arch/frv/include/asm/kmap_types.h ---- linux-3.0.4/arch/frv/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/frv/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/frv/mm/elf-fdpic.c linux-3.0.4/arch/frv/mm/elf-fdpic.c ---- linux-3.0.4/arch/frv/mm/elf-fdpic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/frv/mm/elf-fdpic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(str - 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(str - 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(str - 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 -urNp linux-3.0.4/arch/ia64/include/asm/elf.h linux-3.0.4/arch/ia64/include/asm/elf.h ---- linux-3.0.4/arch/ia64/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/ia64/include/asm/pgtable.h linux-3.0.4/arch/ia64/include/asm/pgtable.h ---- linux-3.0.4/arch/ia64/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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> -@@ -143,6 +143,17 @@ - #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 -urNp linux-3.0.4/arch/ia64/include/asm/spinlock.h linux-3.0.4/arch/ia64/include/asm/spinlock.h ---- linux-3.0.4/arch/ia64/include/asm/spinlock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/spinlock.h 2011-08-23 21:47:55.000000000 -0400 -@@ -72,7 +72,7 @@ static __always_inline void __ticket_spi - 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 -urNp linux-3.0.4/arch/ia64/include/asm/uaccess.h linux-3.0.4/arch/ia64/include/asm/uaccess.h ---- linux-3.0.4/arch/ia64/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void _ - 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 _ - 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 -urNp linux-3.0.4/arch/ia64/kernel/module.c linux-3.0.4/arch/ia64/kernel/module.c ---- linux-3.0.4/arch/ia64/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -315,8 +315,7 @@ module_alloc (unsigned long size) - 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; - } -@@ -502,15 +501,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd - } - - 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 -@@ -693,7 +716,14 @@ do_reloc (struct module *mod, uint8_t r_ - 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: -@@ -828,15 +858,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, - * 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 -urNp linux-3.0.4/arch/ia64/kernel/sys_ia64.c linux-3.0.4/arch/ia64/kernel/sys_ia64.c ---- linux-3.0.4/arch/ia64/kernel/sys_ia64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/sys_ia64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil - 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 *fil - 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 -urNp linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S ---- linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S 2011-08-23 21:47:55.000000000 -0400 -@@ -199,7 +199,7 @@ 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 -urNp linux-3.0.4/arch/ia64/mm/fault.c linux-3.0.4/arch/ia64/mm/fault.c ---- linux-3.0.4/arch/ia64/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -73,6 +73,23 @@ mapped_kernel_page_is_present (unsigned - return pte_present(pte); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(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) - { -@@ -146,9 +163,23 @@ ia64_do_page_fault (unsigned long addres - 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 -urNp linux-3.0.4/arch/ia64/mm/hugetlbpage.c linux-3.0.4/arch/ia64/mm/hugetlbpage.c ---- linux-3.0.4/arch/ia64/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area( - /* 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 -urNp linux-3.0.4/arch/ia64/mm/init.c linux-3.0.4/arch/ia64/mm/init.c ---- linux-3.0.4/arch/ia64/mm/init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/init.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/m32r/lib/usercopy.c linux-3.0.4/arch/m32r/lib/usercopy.c ---- linux-3.0.4/arch/m32r/lib/usercopy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/m32r/lib/usercopy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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, - 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 -urNp linux-3.0.4/arch/mips/include/asm/elf.h linux-3.0.4/arch/mips/include/asm/elf.h ---- linux-3.0.4/arch/mips/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/mips/include/asm/page.h linux-3.0.4/arch/mips/include/asm/page.h ---- linux-3.0.4/arch/mips/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -93,7 +93,7 @@ extern void copy_user_highpage(struct pa - #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 -urNp linux-3.0.4/arch/mips/include/asm/system.h linux-3.0.4/arch/mips/include/asm/system.h ---- linux-3.0.4/arch/mips/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -230,6 +230,6 @@ extern void per_cpu_trap_init(void); - */ - #define __ARCH_WANT_UNLOCKED_CTXSW - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - #endif /* _ASM_SYSTEM_H */ -diff -urNp linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c ---- linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #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 -urNp linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c ---- linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #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 -urNp linux-3.0.4/arch/mips/kernel/process.c linux-3.0.4/arch/mips/kernel/process.c ---- linux-3.0.4/arch/mips/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,15 +473,3 @@ unsigned long get_wchan(struct task_stru - 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 -urNp linux-3.0.4/arch/mips/mm/fault.c linux-3.0.4/arch/mips/mm/fault.c ---- linux-3.0.4/arch/mips/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -28,6 +28,23 @@ - #include <asm/highmem.h> /* For VMALLOC_END */ - #include <linux/kdebug.h> - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(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 -urNp linux-3.0.4/arch/mips/mm/mmap.c linux-3.0.4/arch/mips/mm/mmap.c ---- linux-3.0.4/arch/mips/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,14 +48,18 @@ unsigned long arch_get_unmapped_area(str - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - vmm = find_vma(current->mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vmm || addr + len <= vmm->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len)) - return addr; - } - addr = current->mm->mmap_base; -@@ -68,7 +72,7 @@ unsigned long arch_get_unmapped_area(str - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (TASK_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 (do_color_align) -@@ -93,30 +97,3 @@ void arch_pick_mmap_layout(struct mm_str - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } -- --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 -urNp linux-3.0.4/arch/parisc/include/asm/elf.h linux-3.0.4/arch/parisc/include/asm/elf.h ---- linux-3.0.4/arch/parisc/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/parisc/include/asm/pgtable.h linux-3.0.4/arch/parisc/include/asm/pgtable.h ---- linux-3.0.4/arch/parisc/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -210,6 +210,17 @@ 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 -urNp linux-3.0.4/arch/parisc/kernel/module.c linux-3.0.4/arch/parisc/kernel/module.c ---- linux-3.0.4/arch/parisc/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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_ - } - - /* 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 = 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.got_offset = me->core_size_rw; -+ me->core_size_rw += gots * sizeof(struct got_entry); -+ -+ 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 - - 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 - #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 - - /* 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 */ -@@ -857,7 +879,7 @@ 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 -urNp linux-3.0.4/arch/parisc/kernel/sys_parisc.c linux-3.0.4/arch/parisc/kernel/sys_parisc.c ---- linux-3.0.4/arch/parisc/kernel/sys_parisc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/sys_parisc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,7 +43,7 @@ static unsigned long get_unshared_area(u - /* 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(str - /* 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(str - 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 -urNp linux-3.0.4/arch/parisc/kernel/traps.c linux-3.0.4/arch/parisc/kernel/traps.c ---- linux-3.0.4/arch/parisc/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/traps.c 2011-08-23 21:47:55.000000000 -0400 -@@ -733,9 +733,7 @@ void notrace handle_interruption(int cod - - 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 -urNp linux-3.0.4/arch/parisc/mm/fault.c linux-3.0.4/arch/parisc/mm/fault.c ---- linux-3.0.4/arch/parisc/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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, ex - 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, unsign - } - #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(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 -urNp linux-3.0.4/arch/powerpc/include/asm/elf.h linux-3.0.4/arch/powerpc/include/asm/elf.h ---- linux-3.0.4/arch/powerpc/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E - 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(s - (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 -urNp linux-3.0.4/arch/powerpc/include/asm/kmap_types.h linux-3.0.4/arch/powerpc/include/asm/kmap_types.h ---- linux-3.0.4/arch/powerpc/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -27,6 +27,7 @@ enum km_type { - KM_PPC_SYNC_PAGE, - KM_PPC_SYNC_ICACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/powerpc/include/asm/mman.h linux-3.0.4/arch/powerpc/include/asm/mman.h ---- linux-3.0.4/arch/powerpc/include/asm/mman.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/mman.h 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm - } - #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 -urNp linux-3.0.4/arch/powerpc/include/asm/page_64.h linux-3.0.4/arch/powerpc/include/asm/page_64.h ---- linux-3.0.4/arch/powerpc/include/asm/page_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/page_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -155,15 +155,18 @@ 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 -urNp linux-3.0.4/arch/powerpc/include/asm/page.h linux-3.0.4/arch/powerpc/include/asm/page.h ---- linux-3.0.4/arch/powerpc/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -129,8 +129,9 @@ extern phys_addr_t kernstart_addr; - * 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) -@@ -158,6 +159,9 @@ extern phys_addr_t kernstart_addr; - #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) - #endif - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - #undef STRICT_MM_TYPECHECKS -diff -urNp linux-3.0.4/arch/powerpc/include/asm/pgtable.h linux-3.0.4/arch/powerpc/include/asm/pgtable.h ---- linux-3.0.4/arch/powerpc/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h ---- linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/powerpc/include/asm/reg.h linux-3.0.4/arch/powerpc/include/asm/reg.h ---- linux-3.0.4/arch/powerpc/include/asm/reg.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/reg.h 2011-08-23 21:47:55.000000000 -0400 -@@ -209,6 +209,7 @@ - #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 -urNp linux-3.0.4/arch/powerpc/include/asm/system.h linux-3.0.4/arch/powerpc/include/asm/system.h ---- linux-3.0.4/arch/powerpc/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -531,7 +531,7 @@ __cmpxchg_local(volatile void *ptr, unsi - #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) - #endif - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - /* Used in very early kernel initialization. */ - extern unsigned long reloc_offset(void); -diff -urNp linux-3.0.4/arch/powerpc/include/asm/uaccess.h linux-3.0.4/arch/powerpc/include/asm/uaccess.h ---- linux-3.0.4/arch/powerpc/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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_ - 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_us - 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_us - 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 -urNp linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S ---- linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S 2011-08-23 21:47:55.000000000 -0400 -@@ -567,6 +567,7 @@ 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) -@@ -576,8 +577,7 @@ 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 -urNp linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S ---- linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S 2011-08-23 21:47:55.000000000 -0400 -@@ -956,10 +956,10 @@ 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+ 13f -- bl .save_nvgprs - mr r5,r3 - addi r3,r1,STACK_FRAME_OVERHEAD - lwz r4,_DAR(r1) -diff -urNp linux-3.0.4/arch/powerpc/kernel/module_32.c linux-3.0.4/arch/powerpc/kernel/module_32.c ---- linux-3.0.4/arch/powerpc/kernel/module_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/module_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr - 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; - } - -@@ -203,11 +203,16 @@ static uint32_t do_plt_call(void *locati - - 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 -urNp linux-3.0.4/arch/powerpc/kernel/module.c linux-3.0.4/arch/powerpc/kernel/module.c ---- linux-3.0.4/arch/powerpc/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -31,11 +31,24 @@ - - LIST_HEAD(module_bug_list); - -+#ifdef CONFIG_PAX_KERNEXEC - void *module_alloc(unsigned long size) - { - if (size == 0) - return NULL; - -+ return vmalloc(size); -+} -+ -+void *module_alloc_exec(unsigned long size) -+#else -+void *module_alloc(unsigned long size) -+#endif -+ -+{ -+ if (size == 0) -+ return NULL; -+ - return vmalloc_exec(size); - } - -@@ -45,6 +58,13 @@ void module_free(struct module *mod, voi - vfree(module_region); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+#endif -+ - static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - const char *name) -diff -urNp linux-3.0.4/arch/powerpc/kernel/process.c linux-3.0.4/arch/powerpc/kernel/process.c ---- linux-3.0.4/arch/powerpc/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/process.c 2011-08-23 21:48:14.000000000 -0400 -@@ -676,8 +676,8 @@ 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)) -@@ -1183,10 +1183,10 @@ void show_stack(struct task_struct *tsk, - 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--; - } -@@ -1206,7 +1206,7 @@ void show_stack(struct task_struct *tsk, - 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; - } -@@ -1281,58 +1281,3 @@ 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 -urNp linux-3.0.4/arch/powerpc/kernel/signal_32.c linux-3.0.4/arch/powerpc/kernel/signal_32.c ---- linux-3.0.4/arch/powerpc/kernel/signal_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/signal_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -859,7 +859,7 @@ int handle_rt_signal32(unsigned long sig - /* 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 -urNp linux-3.0.4/arch/powerpc/kernel/signal_64.c linux-3.0.4/arch/powerpc/kernel/signal_64.c ---- linux-3.0.4/arch/powerpc/kernel/signal_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/signal_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct - 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 -urNp linux-3.0.4/arch/powerpc/kernel/traps.c linux-3.0.4/arch/powerpc/kernel/traps.c ---- linux-3.0.4/arch/powerpc/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/traps.c 2011-08-23 21:48:14.000000000 -0400 -@@ -98,6 +98,8 @@ static void pmac_backlight_unblank(void) - static inline void pmac_backlight_unblank(void) { } - #endif - -+extern void gr_handle_kernel_exploit(void); -+ - int die(const char *str, struct pt_regs *regs, long err) - { - static struct { -@@ -171,6 +173,8 @@ int die(const char *str, struct pt_regs - if (panic_on_oops) - panic("Fatal exception"); - -+ gr_handle_kernel_exploit(); -+ - oops_exit(); - do_exit(err); - -diff -urNp linux-3.0.4/arch/powerpc/kernel/vdso.c linux-3.0.4/arch/powerpc/kernel/vdso.c ---- linux-3.0.4/arch/powerpc/kernel/vdso.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/vdso.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,6 +36,7 @@ - #include <asm/firmware.h> - #include <asm/vdso.h> - #include <asm/vdso_datapage.h> -+#include <asm/mman.h> - - #include "setup.h" - -@@ -220,7 +221,7 @@ int arch_setup_additional_pages(struct l - 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 -@@ -240,7 +241,7 @@ int arch_setup_additional_pages(struct l - 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 -urNp linux-3.0.4/arch/powerpc/lib/usercopy_64.c linux-3.0.4/arch/powerpc/lib/usercopy_64.c ---- linux-3.0.4/arch/powerpc/lib/usercopy_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/lib/usercopy_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 * - return n; - } - --EXPORT_SYMBOL(copy_from_user); --EXPORT_SYMBOL(copy_to_user); - EXPORT_SYMBOL(copy_in_user); - -diff -urNp linux-3.0.4/arch/powerpc/mm/fault.c linux-3.0.4/arch/powerpc/mm/fault.c ---- linux-3.0.4/arch/powerpc/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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> -@@ -43,6 +47,7 @@ - #include <asm/tlbflush.h> - #include <asm/siginfo.h> - #include <mm/mmu_decl.h> -+#include <asm/ptrace.h> - - #ifdef CONFIG_KPROBES - static inline int notify_page_fault(struct pt_regs *regs) -@@ -66,6 +71,33 @@ static inline int notify_page_fault(stru - } - #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(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. -@@ -136,7 +168,7 @@ int __kprobes do_page_fault(struct pt_re - * 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 -@@ -259,7 +291,7 @@ 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 */ -@@ -274,7 +306,7 @@ 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 */ - -@@ -343,6 +375,23 @@ 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 -urNp linux-3.0.4/arch/powerpc/mm/mmap_64.c linux-3.0.4/arch/powerpc/mm/mmap_64.c ---- linux-3.0.4/arch/powerpc/mm/mmap_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/mmap_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -99,10 +99,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - 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 -urNp linux-3.0.4/arch/powerpc/mm/slice.c linux-3.0.4/arch/powerpc/mm/slice.c ---- linux-3.0.4/arch/powerpc/mm/slice.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/slice.c 2011-08-23 21:47:55.000000000 -0400 -@@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_ - 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_top - } - } - -- 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_top - * 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_top - 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(un - 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 -urNp linux-3.0.4/arch/s390/include/asm/elf.h linux-3.0.4/arch/s390/include/asm/elf.h ---- linux-3.0.4/arch/s390/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -162,8 +162,14 @@ 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 -urNp linux-3.0.4/arch/s390/include/asm/system.h linux-3.0.4/arch/s390/include/asm/system.h ---- linux-3.0.4/arch/s390/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -255,7 +255,7 @@ extern void (*_machine_restart)(char *co - extern void (*_machine_halt)(void); - extern void (*_machine_power_off)(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - static inline int tprot(unsigned long addr) - { -diff -urNp linux-3.0.4/arch/s390/include/asm/uaccess.h linux-3.0.4/arch/s390/include/asm/uaccess.h ---- linux-3.0.4/arch/s390/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -235,6 +235,10 @@ 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; -@@ -260,6 +264,9 @@ copy_to_user(void __user *to, const void - 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 -@@ -294,6 +301,10 @@ copy_from_user(void *to, const void __us - unsigned int sz = __compiletime_object_size(to); - - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (unlikely(sz != -1 && sz < n)) { - copy_from_user_overflow(); - return n; -diff -urNp linux-3.0.4/arch/s390/kernel/module.c linux-3.0.4/arch/s390/kernel/module.c ---- linux-3.0.4/arch/s390/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -168,11 +168,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, - - /* 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; - } - -@@ -258,7 +258,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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; -@@ -282,7 +282,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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; -@@ -296,7 +296,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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 */ -@@ -321,7 +321,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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; -@@ -343,7 +343,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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) -@@ -353,7 +353,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - 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 -urNp linux-3.0.4/arch/s390/kernel/process.c linux-3.0.4/arch/s390/kernel/process.c ---- linux-3.0.4/arch/s390/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -319,39 +319,3 @@ unsigned long get_wchan(struct task_stru - } - 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 -urNp linux-3.0.4/arch/s390/kernel/setup.c linux-3.0.4/arch/s390/kernel/setup.c ---- linux-3.0.4/arch/s390/kernel/setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -271,7 +271,7 @@ static int __init early_parse_mem(char * - } - early_param("mem", early_parse_mem); - --unsigned int user_mode = HOME_SPACE_MODE; -+unsigned int user_mode = SECONDARY_SPACE_MODE; - EXPORT_SYMBOL_GPL(user_mode); - - static int set_amode_and_uaccess(unsigned long user_amode, -diff -urNp linux-3.0.4/arch/s390/mm/mmap.c linux-3.0.4/arch/s390/mm/mmap.c ---- linux-3.0.4/arch/s390/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - 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_str - */ - 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 -urNp linux-3.0.4/arch/score/include/asm/system.h linux-3.0.4/arch/score/include/asm/system.h ---- linux-3.0.4/arch/score/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/score/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ do { \ - #define finish_arch_switch(prev) do {} while (0) - - typedef void (*vi_handler_t)(void); --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) (x) - - #define mb() barrier() - #define rmb() barrier() -diff -urNp linux-3.0.4/arch/score/kernel/process.c linux-3.0.4/arch/score/kernel/process.c ---- linux-3.0.4/arch/score/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/score/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -161,8 +161,3 @@ unsigned long get_wchan(struct task_stru - - return task_pt_regs(task)->cp0_epc; - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- return sp; --} -diff -urNp linux-3.0.4/arch/sh/mm/mmap.c linux-3.0.4/arch/sh/mm/mmap.c ---- linux-3.0.4/arch/sh/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sh/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(str - 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 fi - 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 fi - /* 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 fi - 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 fi - 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 -urNp linux-3.0.4/arch/sparc/include/asm/atomic_64.h linux-3.0.4/arch/sparc/include/asm/atomic_64.h ---- linux-3.0.4/arch/sparc/include/asm/atomic_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/atomic_64.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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, atomi - #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, atomi - * 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) -@@ -59,30 +101,65 @@ extern long atomic64_sub_ret(long, atomi - #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; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -@@ -90,20 +167,35 @@ static inline int atomic_add_unless(atom - #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 -urNp linux-3.0.4/arch/sparc/include/asm/cache.h linux-3.0.4/arch/sparc/include/asm/cache.h ---- linux-3.0.4/arch/sparc/include/asm/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/cache.h 2011-08-23 21:47:55.000000000 -0400 -@@ -10,7 +10,7 @@ - #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) - - #define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES 32 -+#define L1_CACHE_BYTES 32UL - - #ifdef CONFIG_SPARC32 - #define SMP_CACHE_BYTES_SHIFT 5 -diff -urNp linux-3.0.4/arch/sparc/include/asm/elf_32.h linux-3.0.4/arch/sparc/include/asm/elf_32.h ---- linux-3.0.4/arch/sparc/include/asm/elf_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/elf_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/include/asm/elf_64.h linux-3.0.4/arch/sparc/include/asm/elf_64.h ---- linux-3.0.4/arch/sparc/include/asm/elf_64.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/elf_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/include/asm/pgtable_32.h linux-3.0.4/arch/sparc/include/asm/pgtable_32.h ---- linux-3.0.4/arch/sparc/include/asm/pgtable_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/pgtable_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h ---- linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/include/asm/spinlock_64.h linux-3.0.4/arch/sparc/include/asm/spinlock_64.h ---- linux-3.0.4/arch/sparc/include/asm/spinlock_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/spinlock_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags( - - /* 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_r - " .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 - "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 - 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 - : "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_ - : "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(arc - : "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 -urNp linux-3.0.4/arch/sparc/include/asm/thread_info_32.h linux-3.0.4/arch/sparc/include/asm/thread_info_32.h ---- linux-3.0.4/arch/sparc/include/asm/thread_info_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/thread_info_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -50,6 +50,8 @@ struct thread_info { - unsigned long w_saved; - - struct restart_block restart_block; -+ -+ unsigned long lowest_stack; - }; - - /* -diff -urNp linux-3.0.4/arch/sparc/include/asm/thread_info_64.h linux-3.0.4/arch/sparc/include/asm/thread_info_64.h ---- linux-3.0.4/arch/sparc/include/asm/thread_info_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/thread_info_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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))); - }; - -diff -urNp linux-3.0.4/arch/sparc/include/asm/uaccess_32.h linux-3.0.4/arch/sparc/include/asm/uaccess_32.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -249,27 +249,46 @@ extern unsigned long __copy_user(void __ - - 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 -urNp linux-3.0.4/arch/sparc/include/asm/uaccess_64.h linux-3.0.4/arch/sparc/include/asm/uaccess_64.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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/system.h> - #include <asm/spitfire.h> -@@ -213,8 +214,15 @@ extern unsigned long copy_from_user_fixu - 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); - -@@ -230,8 +238,15 @@ extern unsigned long copy_to_user_fixup( - 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 -urNp linux-3.0.4/arch/sparc/include/asm/uaccess.h linux-3.0.4/arch/sparc/include/asm/uaccess.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/kernel/Makefile linux-3.0.4/arch/sparc/kernel/Makefile ---- linux-3.0.4/arch/sparc/kernel/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -3,7 +3,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - extra-y := head_$(BITS).o - extra-y += init_task.o -diff -urNp linux-3.0.4/arch/sparc/kernel/process_32.c linux-3.0.4/arch/sparc/kernel/process_32.c ---- linux-3.0.4/arch/sparc/kernel/process_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/process_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -204,7 +204,7 @@ 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); -@@ -271,14 +271,14 @@ 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], -@@ -313,7 +313,7 @@ void show_stack(struct task_struct *tsk, - 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 -urNp linux-3.0.4/arch/sparc/kernel/process_64.c linux-3.0.4/arch/sparc/kernel/process_64.c ---- linux-3.0.4/arch/sparc/kernel/process_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/process_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -180,14 +180,14 @@ static void show_regwindow(struct pt_reg - 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]); -@@ -200,7 +200,7 @@ 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]); - } -@@ -285,7 +285,7 @@ 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 -urNp linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c ---- linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str - 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(str - } - 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 -urNp linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c ---- linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str - /* 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(str - 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(str - 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 fi - /* 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 fi - 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 fi - /* 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 fi - 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 fi - 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_str - 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_str - 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 -urNp linux-3.0.4/arch/sparc/kernel/traps_32.c linux-3.0.4/arch/sparc/kernel/traps_32.c ---- linux-3.0.4/arch/sparc/kernel/traps_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/traps_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,8 @@ static void instruction_dump(unsigned lo - #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_ - 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 -urNp linux-3.0.4/arch/sparc/kernel/traps_64.c linux-3.0.4/arch/sparc/kernel/traps_64.c ---- linux-3.0.4/arch/sparc/kernel/traps_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/traps_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_ - 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 -= 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 - 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->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, - 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, - 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_r - - 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_r - - 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, - 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_ - 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_ - 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_ - } - 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 -urNp linux-3.0.4/arch/sparc/kernel/unaligned_64.c linux-3.0.4/arch/sparc/kernel/unaligned_64.c ---- linux-3.0.4/arch/sparc/kernel/unaligned_64.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/unaligned_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -279,7 +279,7 @@ static void log_unaligned(struct pt_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 -urNp linux-3.0.4/arch/sparc/lib/atomic_64.S linux-3.0.4/arch/sparc/lib/atomic_64.S ---- linux-3.0.4/arch/sparc/lib/atomic_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/atomic_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 = at - 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 = at - 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 - 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 - 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 = - 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 = - 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, %o - 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 -urNp linux-3.0.4/arch/sparc/lib/ksyms.c linux-3.0.4/arch/sparc/lib/ksyms.c ---- linux-3.0.4/arch/sparc/lib/ksyms.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/ksyms.c 2011-08-23 21:48:14.000000000 -0400 -@@ -142,12 +142,18 @@ 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 -urNp linux-3.0.4/arch/sparc/lib/Makefile linux-3.0.4/arch/sparc/lib/Makefile ---- linux-3.0.4/arch/sparc/lib/Makefile 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/sparc/Makefile linux-3.0.4/arch/sparc/Makefile ---- linux-3.0.4/arch/sparc/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/Makefile 2011-08-23 21:48:14.000000000 -0400 -@@ -75,7 +75,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc - # 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 -urNp linux-3.0.4/arch/sparc/mm/fault_32.c linux-3.0.4/arch/sparc/mm/fault_32.c ---- linux-3.0.4/arch/sparc/mm/fault_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/fault_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -22,6 +22,9 @@ - #include <linux/interrupt.h> - #include <linux/module.h> - #include <linux/kdebug.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> - - #include <asm/system.h> - #include <asm/page.h> -@@ -209,6 +212,268 @@ static unsigned long compute_si_addr(str - 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(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) - { -@@ -281,6 +546,24 @@ 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 -urNp linux-3.0.4/arch/sparc/mm/fault_64.c linux-3.0.4/arch/sparc/mm/fault_64.c ---- linux-3.0.4/arch/sparc/mm/fault_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/fault_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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(stru - 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_32b - 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(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; -@@ -340,6 +794,29 @@ asmlinkage void __kprobes do_sparc64_fau - 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 -urNp linux-3.0.4/arch/sparc/mm/hugetlbpage.c linux-3.0.4/arch/sparc/mm/hugetlbpage.c ---- linux-3.0.4/arch/sparc/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -68,7 +68,7 @@ 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: - */ -@@ -107,7 +107,7 @@ hugetlb_get_unmapped_area_topdown(struct - /* 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); - } -@@ -116,16 +116,17 @@ hugetlb_get_unmapped_area_topdown(struct - 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); - } -@@ -135,8 +136,8 @@ hugetlb_get_unmapped_area_topdown(struct - 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: - /* -@@ -182,8 +183,7 @@ hugetlb_get_unmapped_area(struct file *f - 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 -urNp linux-3.0.4/arch/sparc/mm/init_32.c linux-3.0.4/arch/sparc/mm/init_32.c ---- linux-3.0.4/arch/sparc/mm/init_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/init_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -316,6 +316,9 @@ 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) { -@@ -344,17 +347,17 @@ 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 -urNp linux-3.0.4/arch/sparc/mm/Makefile linux-3.0.4/arch/sparc/mm/Makefile ---- linux-3.0.4/arch/sparc/mm/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o - obj-y += fault_$(BITS).o -diff -urNp linux-3.0.4/arch/sparc/mm/srmmu.c linux-3.0.4/arch/sparc/mm/srmmu.c ---- linux-3.0.4/arch/sparc/mm/srmmu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/srmmu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/um/include/asm/kmap_types.h linux-3.0.4/arch/um/include/asm/kmap_types.h ---- linux-3.0.4/arch/um/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/um/include/asm/page.h linux-3.0.4/arch/um/include/asm/page.h ---- linux-3.0.4/arch/um/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/um/kernel/process.c linux-3.0.4/arch/um/kernel/process.c ---- linux-3.0.4/arch/um/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/um/sys-i386/syscalls.c linux-3.0.4/arch/um/sys-i386/syscalls.c ---- linux-3.0.4/arch/um/sys-i386/syscalls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/sys-i386/syscalls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -11,6 +11,21 @@ - #include "asm/uaccess.h" - #include "asm/unistd.h" - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ 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; -+} -+ - /* - * The prototype on i386 is: - * -diff -urNp linux-3.0.4/arch/x86/boot/bitops.h linux-3.0.4/arch/x86/boot/bitops.h ---- linux-3.0.4/arch/x86/boot/bitops.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/bitops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -26,7 +26,7 @@ static inline int variable_test_bit(int - 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 - - 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 -urNp linux-3.0.4/arch/x86/boot/boot.h linux-3.0.4/arch/x86/boot/boot.h ---- linux-3.0.4/arch/x86/boot/boot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/boot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - 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 -urNp linux-3.0.4/arch/x86/boot/compressed/head_32.S linux-3.0.4/arch/x86/boot/compressed/head_32.S ---- linux-3.0.4/arch/x86/boot/compressed/head_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/head_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -76,7 +76,7 @@ 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 */ -@@ -162,7 +162,7 @@ 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. -@@ -170,8 +170,7 @@ 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 -urNp linux-3.0.4/arch/x86/boot/compressed/head_64.S linux-3.0.4/arch/x86/boot/compressed/head_64.S ---- linux-3.0.4/arch/x86/boot/compressed/head_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/head_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 */ -@@ -233,7 +233,7 @@ ENTRY(startup_64) - notq %rax - andq %rax, %rbp - #else -- movq $LOAD_PHYSICAL_ADDR, %rbp -+ movq $____LOAD_PHYSICAL_ADDR, %rbp - #endif - - /* Target address to relocate to for decompression */ -diff -urNp linux-3.0.4/arch/x86/boot/compressed/Makefile linux-3.0.4/arch/x86/boot/compressed/Makefile ---- linux-3.0.4/arch/x86/boot/compressed/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=smal - 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 -urNp linux-3.0.4/arch/x86/boot/compressed/misc.c linux-3.0.4/arch/x86/boot/compressed/misc.c ---- linux-3.0.4/arch/x86/boot/compressed/misc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/misc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -@@ -363,7 +363,7 @@ asmlinkage void decompress_kernel(void * - 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 -urNp linux-3.0.4/arch/x86/boot/compressed/relocs.c linux-3.0.4/arch/x86/boot/compressed/relocs.c ---- linux-3.0.4/arch/x86/boot/compressed/relocs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/relocs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -13,8 +13,11 @@ - - static void die(char *fmt, ...); - -+#include "../../../../include/generated/autoconf.h" -+ - #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; - -@@ -270,9 +273,39 @@ 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)); -@@ -307,7 +340,7 @@ 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) { -@@ -332,7 +365,7 @@ 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) { -@@ -365,7 +398,9 @@ 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) { -@@ -385,9 +420,18 @@ static void read_relocs(FILE *fp) - die("Cannot read symbol table: %s\n", - strerror(errno)); - } -+ base = 0; -+ 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; -+ } - 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); - } - } -@@ -396,14 +440,14 @@ 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; - Elf32_Sym *sh_symtab; -- int j; -+ unsigned int j; - - if (sec->shdr.sh_type != SHT_SYMTAB) { - continue; -@@ -431,14 +475,14 @@ 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; - } -@@ -499,13 +543,13 @@ static void print_absolute_relocs(void) - - static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym)) - { -- 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) { -@@ -530,6 +574,22 @@ static void walk_relocs(void (*visit)(El - !is_rel_reloc(sym_name(sym_strtab, sym))) { - continue; - } -+ /* 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 -+ - switch (r_type) { - case R_386_NONE: - case R_386_PC32: -@@ -571,7 +631,7 @@ static int cmp_relocs(const void *va, co - - static void emit_relocs(int as_text) - { -- int i; -+ unsigned int i; - /* Count how many relocations I have and allocate space for them. */ - reloc_count = 0; - walk_relocs(count_reloc); -@@ -665,6 +725,7 @@ 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 -urNp linux-3.0.4/arch/x86/boot/cpucheck.c linux-3.0.4/arch/x86/boot/cpucheck.c ---- linux-3.0.4/arch/x86/boot/cpucheck.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/cpucheck.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 *r - 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 *r - 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 *r - 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 -urNp linux-3.0.4/arch/x86/boot/header.S linux-3.0.4/arch/x86/boot/header.S ---- linux-3.0.4/arch/x86/boot/header.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/header.S 2011-08-23 21:47:55.000000000 -0400 -@@ -224,7 +224,7 @@ setup_data: .quad 0 # 64-bit physical - # 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 -urNp linux-3.0.4/arch/x86/boot/Makefile linux-3.0.4/arch/x86/boot/Makefile ---- linux-3.0.4/arch/x86/boot/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -69,6 +69,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os - $(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 -urNp linux-3.0.4/arch/x86/boot/memory.c linux-3.0.4/arch/x86/boot/memory.c ---- linux-3.0.4/arch/x86/boot/memory.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/memory.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/boot/video.c linux-3.0.4/arch/x86/boot/video.c ---- linux-3.0.4/arch/x86/boot/video.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/video.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/boot/video-vesa.c linux-3.0.4/arch/x86/boot/video-vesa.c ---- linux-3.0.4/arch/x86/boot/video-vesa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/video-vesa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/crypto/aes-x86_64-asm_64.S linux-3.0.4/arch/x86/crypto/aes-x86_64-asm_64.S ---- linux-3.0.4/arch/x86/crypto/aes-x86_64-asm_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/crypto/aes-x86_64-asm_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -71,6 +71,12 @@ FUNC: movq r1,r2; \ - je B192; \ - leaq 32(r9),r9; - -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+#define ret orb $0x80, 0x7(%rsp); ret -+#else -+#define ret ret -+#endif -+ - #define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \ - movq r1,r2; \ - movq r3,r4; \ -diff -urNp linux-3.0.4/arch/x86/crypto/salsa20-x86_64-asm_64.S linux-3.0.4/arch/x86/crypto/salsa20-x86_64-asm_64.S ---- linux-3.0.4/arch/x86/crypto/salsa20-x86_64-asm_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/crypto/salsa20-x86_64-asm_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -790,6 +790,9 @@ ECRYPT_encrypt_bytes: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - # bytesatleast65: - ._bytesatleast65: -@@ -891,6 +894,9 @@ ECRYPT_keysetup: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - # enter ECRYPT_ivsetup - .text -@@ -917,4 +923,7 @@ ECRYPT_ivsetup: - add %r11,%rsp - mov %rdi,%rax - mov %rsi,%rdx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret -diff -urNp linux-3.0.4/arch/x86/crypto/twofish-x86_64-asm_64.S linux-3.0.4/arch/x86/crypto/twofish-x86_64-asm_64.S ---- linux-3.0.4/arch/x86/crypto/twofish-x86_64-asm_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/crypto/twofish-x86_64-asm_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -269,6 +269,9 @@ twofish_enc_blk: - - popq R1 - movq $1,%rax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - twofish_dec_blk: -@@ -321,4 +324,7 @@ twofish_dec_blk: - - popq R1 - movq $1,%rax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret -diff -urNp linux-3.0.4/arch/x86/ia32/ia32_aout.c linux-3.0.4/arch/x86/ia32/ia32_aout.c ---- linux-3.0.4/arch/x86/ia32/ia32_aout.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32_aout.c 2011-08-23 21:48:14.000000000 -0400 -@@ -162,6 +162,8 @@ static int aout_core_dump(long signr, st - 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 -urNp linux-3.0.4/arch/x86/ia32/ia32entry.S linux-3.0.4/arch/x86/ia32/ia32entry.S ---- linux-3.0.4/arch/x86/ia32/ia32entry.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32entry.S 2011-08-25 17:36:37.000000000 -0400 -@@ -13,6 +13,7 @@ - #include <asm/thread_info.h> - #include <asm/segment.h> - #include <asm/irqflags.h> -+#include <asm/pgtable.h> - #include <linux/linkage.h> - - /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ -@@ -95,6 +96,29 @@ ENTRY(native_irq_enable_sysexit) - ENDPROC(native_irq_enable_sysexit) - #endif - -+ .macro pax_enter_kernel_user -+#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 -+ -+ .macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+ .endm -+ - /* - * 32bit SYSENTER instruction entry. - * -@@ -121,7 +145,7 @@ ENTRY(ia32_sysenter_target) - CFI_REGISTER rsp,rbp - SWAPGS_UNSAFE_STACK - movq PER_CPU_VAR(kernel_stack), %rsp -- addq $(KERNEL_STACK_OFFSET),%rsp -+ pax_enter_kernel_user - /* - * No need to follow this irqs on/off section: the syscall - * disabled irqs, here we enable it straight after entry: -@@ -134,7 +158,8 @@ ENTRY(ia32_sysenter_target) - CFI_REL_OFFSET rsp,0 - pushfq_cfi - /*CFI_REL_OFFSET rflags,0*/ -- movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d -+ GET_THREAD_INFO(%r10) -+ movl TI_sysenter_return(%r10), %r10d - CFI_REGISTER rip,r10 - pushq_cfi $__USER32_CS - /*CFI_REL_OFFSET cs,0*/ -@@ -146,6 +171,12 @@ ENTRY(ia32_sysenter_target) - SAVE_ARGS 0,0,1 - /* 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,%r10 -+ add %r10,%rbp -+#endif -+ - 1: movl (%rbp),%ebp - .section __ex_table,"a" - .quad 1b,ia32_badarg -@@ -168,6 +199,8 @@ sysenter_dispatch: - testl $_TIF_ALLWORK_MASK,TI_flags(%r10) - jnz sysexit_audit - sysexit_from_sys_call: -+ pax_exit_kernel_user -+ pax_erase_kstack - andl $~TS_COMPAT,TI_status(%r10) - /* clear IF, that popfq doesn't enable interrupts early */ - andl $~0x200,EFLAGS-R11(%rsp) -@@ -194,6 +227,9 @@ 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 -@@ -246,6 +282,9 @@ 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 -@@ -277,19 +316,24 @@ 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 -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_enter_kernel_user -+#endif -+ - /* - * 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 8,1,1 -+ SAVE_ARGS 8*6,1,1 - movl %eax,%eax /* zero extension */ - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) -@@ -305,6 +349,12 @@ 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,%r10 -+ add %r10,%r8 -+#endif -+ - 1: movl (%r8),%r9d - .section __ex_table,"a" - .quad 1b,ia32_badarg -@@ -327,6 +377,8 @@ cstar_dispatch: - testl $_TIF_ALLWORK_MASK,TI_flags(%r10) - jnz sysretl_audit - sysretl_from_sys_call: -+ pax_exit_kernel_user -+ pax_erase_kstack - andl $~TS_COMPAT,TI_status(%r10) - RESTORE_ARGS 1,-ARG_SKIP,1,1,1 - movl RIP-ARGOFFSET(%rsp),%ecx -@@ -364,6 +416,9 @@ 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 -@@ -409,6 +464,7 @@ ENTRY(ia32_syscall) - CFI_REL_OFFSET rip,RIP-RIP - PARAVIRT_ADJUST_EXCEPTION_FRAME - SWAPGS -+ 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: -@@ -441,6 +497,9 @@ 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 -urNp linux-3.0.4/arch/x86/ia32/ia32_signal.c linux-3.0.4/arch/x86/ia32/ia32_signal.c ---- linux-3.0.4/arch/x86/ia32/ia32_signal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32_signal.c 2011-08-23 21:47:55.000000000 -0400 -@@ -403,7 +403,7 @@ static void __user *get_sigframe(struct - 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; - } - -@@ -461,7 +461,7 @@ int ia32_setup_frame(int sig, struct k_s - * 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 *)frame->retcode); - } put_user_catch(err); - - if (err) -@@ -503,7 +503,7 @@ int ia32_setup_rt_frame(int sig, struct - 0xb8, - __NR_ia32_rt_sigreturn, - 0x80cd, -- 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -@@ -533,16 +533,18 @@ int ia32_setup_rt_frame(int sig, struct - - 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 *)frame->retcode); - } put_user_catch(err); - - if (err) -diff -urNp linux-3.0.4/arch/x86/include/asm/alternative.h linux-3.0.4/arch/x86/include/asm/alternative.h ---- linux-3.0.4/arch/x86/include/asm/alternative.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/alternative.h 2011-08-23 21:47:55.000000000 -0400 -@@ -93,7 +93,7 @@ static inline int alternatives_text_rese - ".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 -urNp linux-3.0.4/arch/x86/include/asm/apic.h linux-3.0.4/arch/x86/include/asm/apic.h ---- linux-3.0.4/arch/x86/include/asm/apic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/apic.h 2011-08-23 21:48:14.000000000 -0400 -@@ -45,7 +45,7 @@ static inline void generic_apic_probe(vo - - #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 -urNp linux-3.0.4/arch/x86/include/asm/apm.h linux-3.0.4/arch/x86/include/asm/apm.h ---- linux-3.0.4/arch/x86/include/asm/apm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/apm.h 2011-08-23 21:47:55.000000000 -0400 -@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 - __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_as - __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 -urNp linux-3.0.4/arch/x86/include/asm/atomic64_32.h linux-3.0.4/arch/x86/include/asm/atomic64_32.h ---- linux-3.0.4/arch/x86/include/asm/atomic64_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic64_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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) } - - #ifdef CONFIG_X86_CMPXCHG64 -@@ -38,6 +46,21 @@ static inline long long atomic64_cmpxchg - } - - /** -+ * 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 -@@ -77,6 +100,24 @@ static inline void atomic64_set(atomic64 - } - - /** -+ * 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; -+ asm volatile(ATOMIC64_ALTERNATIVE(set) -+ : "+b" (low), "+c" (high) -+ : "S" (v) -+ : "eax", "edx", "memory" -+ ); -+} -+ -+/** - * atomic64_read - read atomic64 variable - * @v: pointer to type atomic64_t - * -@@ -93,6 +134,22 @@ static inline long long atomic64_read(at - } - - /** -+ * 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; -+ asm volatile(ATOMIC64_ALTERNATIVE(read_unchecked) -+ : "=A" (r), "+c" (v) -+ : : "memory" -+ ); -+ return r; -+ } -+ -+/** - * atomic64_add_return - add and return - * @i: integer value to add - * @v: pointer to type atomic64_t -@@ -108,6 +165,22 @@ static inline long long atomic64_add_ret - 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) -+{ -+ asm volatile(ATOMIC64_ALTERNATIVE(add_return_unchecked) -+ : "+A" (i), "+c" (v) -+ : : "memory" -+ ); -+ return i; -+} -+ - /* - * Other variants with different arithmetic operators: - */ -@@ -131,6 +204,17 @@ static inline long long atomic64_inc_ret - return a; - } - -+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ long long a; -+ asm volatile(ATOMIC64_ALTERNATIVE(inc_return_unchecked) -+ : "=A" (a) -+ : "S" (v) -+ : "memory", "ecx" -+ ); -+ return a; -+} -+ - static inline long long atomic64_dec_return(atomic64_t *v) - { - long long a; -@@ -159,6 +243,22 @@ static inline long long atomic64_add(lon - } - - /** -+ * 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) -+{ -+ asm volatile(ATOMIC64_ALTERNATIVE_(add_unchecked, add_return_unchecked) -+ : "+A" (i), "+c" (v) -+ : : "memory" -+ ); -+ return i; -+} -+ -+/** - * atomic64_sub - subtract the atomic64 variable - * @i: integer value to subtract - * @v: pointer to type atomic64_t -diff -urNp linux-3.0.4/arch/x86/include/asm/atomic64_64.h linux-3.0.4/arch/x86/include/asm/atomic64_64.h ---- linux-3.0.4/arch/x86/include/asm/atomic64_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic64_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - } - - /** -+ * 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 - */ - 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, - */ - 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( - { - 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( - */ - 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 - */ - 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( - { - 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( - { - 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( - { - 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; -@@ -171,7 +317,31 @@ static inline int atomic64_add_negative( - static inline long atomic64_add_return(long i, atomic64_t *v) - { - long __i = i; -- asm volatile(LOCK_PREFIX "xaddq %0, %1;" -+ asm volatile(LOCK_PREFIX "xaddq %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movq %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+r" (i), "+m" (v->counter) -+ : : "memory"); -+ return i + __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) -+{ -+ long __i = i; -+ asm volatile(LOCK_PREFIX "xaddq %0, %1" - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -183,6 +353,10 @@ static inline long atomic64_sub_return(l - } - - #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) -@@ -190,6 +364,11 @@ static inline long atomic64_cmpxchg(atom - 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); -@@ -206,17 +385,30 @@ static inline long atomic64_xchg(atomic6 - */ - 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 -urNp linux-3.0.4/arch/x86/include/asm/atomic.h linux-3.0.4/arch/x86/include/asm/atomic.h ---- linux-3.0.4/arch/x86/include/asm/atomic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 * - } - - /** -+ * 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 * - */ - 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, ato - */ - 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(in - { - 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(in - */ - 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 * - */ - 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(at - { - 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(at - { - 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(in - { - 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; -@@ -180,6 +342,46 @@ static inline int atomic_add_return(int - #endif - /* Modern 486+ processor */ - __i = i; -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+r" (i), "+m" (v->counter) -+ : : "memory"); -+ return i + __i; -+ -+#ifdef CONFIG_M386 -+no_xadd: /* Legacy 386 processor */ -+ local_irq_save(flags); -+ __i = atomic_read(v); -+ atomic_set(v, i + __i); -+ local_irq_restore(flags); -+ return i + __i; -+#endif -+} -+ -+/** -+ * atomic_add_return_unchecked - add integer and return -+ * @v: pointer of type atomic_unchecked_t -+ * @i: integer value to add -+ * -+ * Atomically adds @i to @v and returns @i + @v -+ */ -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ int __i; -+#ifdef CONFIG_M386 -+ unsigned long flags; -+ if (unlikely(boot_cpu_data.x86 <= 3)) -+ goto no_xadd; -+#endif -+ /* Modern 486+ processor */ -+ __i = i; - asm volatile(LOCK_PREFIX "xaddl %0, %1" - : "+r" (i), "+m" (v->counter) - : : "memory"); -@@ -208,6 +410,10 @@ static inline int atomic_sub_return(int - } - - #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) -@@ -215,11 +421,21 @@ static inline int atomic_cmpxchg(atomic_ - 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 -@@ -231,21 +447,77 @@ static inline int atomic_xchg(atomic_t * - */ - 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; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -+/** -+ * 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_inc_not_zero(v); -+ -+ 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 - * @v: pointer of type atomic_t -diff -urNp linux-3.0.4/arch/x86/include/asm/bitops.h linux-3.0.4/arch/x86/include/asm/bitops.h ---- linux-3.0.4/arch/x86/include/asm/bitops.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/bitops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/boot.h linux-3.0.4/arch/x86/include/asm/boot.h ---- linux-3.0.4/arch/x86/include/asm/boot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/boot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/cacheflush.h linux-3.0.4/arch/x86/include/asm/cacheflush.h ---- linux-3.0.4/arch/x86/include/asm/cacheflush.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cacheflush.h 2011-08-23 21:47:55.000000000 -0400 -@@ -26,7 +26,7 @@ static inline unsigned long get_page_mem - 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 -urNp linux-3.0.4/arch/x86/include/asm/cache.h linux-3.0.4/arch/x86/include/asm/cache.h ---- linux-3.0.4/arch/x86/include/asm/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cache.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/checksum_32.h linux-3.0.4/arch/x86/include/asm/checksum_32.h ---- linux-3.0.4/arch/x86/include/asm/checksum_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/checksum_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene - 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_f - 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_us - { - 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 -urNp linux-3.0.4/arch/x86/include/asm/cpufeature.h linux-3.0.4/arch/x86/include/asm/cpufeature.h ---- linux-3.0.4/arch/x86/include/asm/cpufeature.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cpufeature.h 2011-08-23 21:47:55.000000000 -0400 -@@ -358,7 +358,7 @@ static __always_inline __pure bool __sta - ".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 -urNp linux-3.0.4/arch/x86/include/asm/desc_defs.h linux-3.0.4/arch/x86/include/asm/desc_defs.h ---- linux-3.0.4/arch/x86/include/asm/desc_defs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/desc_defs.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/desc.h linux-3.0.4/arch/x86/include/asm/desc.h ---- linux-3.0.4/arch/x86/include/asm/desc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/desc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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_ - - 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; -@@ -34,17 +36,12 @@ static inline void fill_ldt(struct desc_ - } - - extern struct desc_ptr idt_descr; --extern gate_desc 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 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 -@@ -69,8 +66,14 @@ static inline void pack_gate(gate_desc * - 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 -@@ -115,12 +118,16 @@ static inline void paravirt_free_ldt(str - - 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 -@@ -134,7 +141,9 @@ native_write_gdt_entry(struct desc_struc - 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, -@@ -207,7 +216,9 @@ static inline void native_set_ldt(const - - 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) -@@ -244,8 +255,10 @@ static inline void native_load_tls(struc - 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) \ -@@ -307,7 +320,7 @@ static inline void set_desc_limit(struct - desc->limit = (limit >> 16) & 0xf; - } - --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; -@@ -326,7 +339,7 @@ static inline void _set_gate(int gate, u - * 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); -@@ -356,19 +369,19 @@ static inline void alloc_intr_gate(unsig - /* - * 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); -@@ -377,19 +390,31 @@ static inline void set_trap_gate(unsigne - 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 -urNp linux-3.0.4/arch/x86/include/asm/e820.h linux-3.0.4/arch/x86/include/asm/e820.h ---- linux-3.0.4/arch/x86/include/asm/e820.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/e820.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/elf.h linux-3.0.4/arch/x86/include/asm/elf.h ---- linux-3.0.4/arch/x86/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -237,7 +237,25 @@ 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_IA32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) -+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 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, -@@ -290,9 +308,7 @@ 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 AT_SYSINFO 32 -@@ -303,7 +319,7 @@ do { \ - - #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)) -@@ -317,7 +333,4 @@ extern int arch_setup_additional_pages(s - 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 -- - #endif /* _ASM_X86_ELF_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/emergency-restart.h linux-3.0.4/arch/x86/include/asm/emergency-restart.h ---- linux-3.0.4/arch/x86/include/asm/emergency-restart.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/emergency-restart.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/futex.h linux-3.0.4/arch/x86/include/asm/futex.h ---- linux-3.0.4/arch/x86/include/asm/futex.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/futex.h 2011-08-23 21:47:55.000000000 -0400 -@@ -12,16 +12,18 @@ - #include <asm/system.h> - - #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 *, 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 *)____m(uaddr))\ - : "i" (-EFAULT), "0" (oparg), "1" (0)) - - #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 *, uaddr); \ - asm volatile("1:\tmovl %2, %0\n" \ - "\tmovl\t%0, %3\n" \ - "\t" insn "\n" \ -@@ -34,7 +36,7 @@ - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=&a" (oldval), "=&r" (ret), \ -- "+m" (*uaddr), "=&r" (tem) \ -+ "+m" (*(u32 *)____m(uaddr)), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) - - static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) -@@ -61,10 +63,10 @@ static inline int futex_atomic_op_inuser - - 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: -@@ -123,13 +125,13 @@ static inline int futex_atomic_cmpxchg_i - 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 *)____m(uaddr)) - : "i" (-EFAULT), "r" (newval), "1" (oldval) - : "memory" - ); -diff -urNp linux-3.0.4/arch/x86/include/asm/hw_irq.h linux-3.0.4/arch/x86/include/asm/hw_irq.h ---- linux-3.0.4/arch/x86/include/asm/hw_irq.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/hw_irq.h 2011-08-23 21:47:55.000000000 -0400 -@@ -137,8 +137,8 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/i387.h linux-3.0.4/arch/x86/include/asm/i387.h ---- linux-3.0.4/arch/x86/include/asm/i387.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/i387.h 2011-08-23 21:47:55.000000000 -0400 -@@ -92,6 +92,11 @@ static inline int fxrstor_checking(struc - { - 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 *)((void *)fx + PAX_USER_SHADOW_BASE); -+#endif -+ - /* See comment in fxsave() below. */ - #ifdef CONFIG_AS_FXSAVEQ - asm volatile("1: fxrstorq %[fx]\n\t" -@@ -121,6 +126,11 @@ static inline int fxsave_user(struct i38 - { - 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. -@@ -213,13 +223,8 @@ static inline void fpu_fxsave(struct fpu - #endif /* CONFIG_X86_64 */ - - /* We need a safe address that is cheap to find and that is already -- in L1 during context switch. The best choices are unfortunately -- different for UP and SMP */ --#ifdef CONFIG_SMP --#define safe_address (__per_cpu_offset[0]) --#else --#define safe_address (kstat_cpu(0).cpustat.user) --#endif -+ in L1 during context switch. */ -+#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0) - - /* - * These must be called with preempt disabled -@@ -312,7 +317,7 @@ static inline void kernel_fpu_begin(void - struct thread_info *me = current_thread_info(); - preempt_disable(); - if (me->status & TS_USEDFPU) -- __save_init_fpu(me->task); -+ __save_init_fpu(current); - else - clts(); - } -diff -urNp linux-3.0.4/arch/x86/include/asm/io.h linux-3.0.4/arch/x86/include/asm/io.h ---- linux-3.0.4/arch/x86/include/asm/io.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/io.h 2011-08-23 21:47:55.000000000 -0400 -@@ -196,6 +196,17 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/irqflags.h linux-3.0.4/arch/x86/include/asm/irqflags.h ---- linux-3.0.4/arch/x86/include/asm/irqflags.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/irqflags.h 2011-08-23 21:47:55.000000000 -0400 -@@ -140,6 +140,11 @@ static inline unsigned long arch_local_i - 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 -urNp linux-3.0.4/arch/x86/include/asm/kprobes.h linux-3.0.4/arch/x86/include/asm/kprobes.h ---- linux-3.0.4/arch/x86/include/asm/kprobes.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/kprobes.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/kvm_host.h linux-3.0.4/arch/x86/include/asm/kvm_host.h ---- linux-3.0.4/arch/x86/include/asm/kvm_host.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/kvm_host.h 2011-08-26 19:49:56.000000000 -0400 -@@ -441,7 +441,7 @@ struct kvm_arch { - unsigned int n_used_mmu_pages; - unsigned int n_requested_mmu_pages; - unsigned int n_max_mmu_pages; -- atomic_t invlpg_counter; -+ atomic_unchecked_t invlpg_counter; - struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; - /* - * Hash table of struct kvm_mmu_page. -@@ -619,7 +619,7 @@ struct kvm_x86_ops { - enum x86_intercept_stage stage); - - const struct trace_print_flags *exit_reasons_str; --}; -+} __do_const; - - struct kvm_arch_async_pf { - u32 token; -diff -urNp linux-3.0.4/arch/x86/include/asm/local.h linux-3.0.4/arch/x86/include/asm/local.h ---- linux-3.0.4/arch/x86/include/asm/local.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/local.h 2011-08-23 21:47:55.000000000 -0400 -@@ -18,26 +18,58 @@ 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)); - } -@@ -55,7 +87,16 @@ static inline int local_sub_and_test(lon - { - 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; -@@ -73,7 +114,16 @@ static inline int local_dec_and_test(loc - { - 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; -@@ -91,7 +141,16 @@ static inline int local_inc_and_test(loc - { - 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; -@@ -110,7 +169,16 @@ static inline int local_add_negative(lon - { - 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; -@@ -133,7 +201,15 @@ static inline long local_add_return(long - #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 -urNp linux-3.0.4/arch/x86/include/asm/mman.h linux-3.0.4/arch/x86/include/asm/mman.h ---- linux-3.0.4/arch/x86/include/asm/mman.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mman.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/mmu_context.h linux-3.0.4/arch/x86/include/asm/mmu_context.h ---- linux-3.0.4/arch/x86/include/asm/mmu_context.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mmu_context.h 2011-08-23 21:48:14.000000000 -0400 -@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *m - - 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_s - 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, USER_PGD_PTRS); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); -+ 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_s - */ - 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, USER_PGD_PTRS); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); -+ 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_s - * 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 -+ } - } - - #define activate_mm(prev, next) \ -diff -urNp linux-3.0.4/arch/x86/include/asm/mmu.h linux-3.0.4/arch/x86/include/asm/mmu.h ---- linux-3.0.4/arch/x86/include/asm/mmu.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mmu.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/module.h linux-3.0.4/arch/x86/include/asm/module.h ---- linux-3.0.4/arch/x86/include/asm/module.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/module.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 +60,30 @@ - #error unknown processor family - #endif - --#ifdef CONFIG_X86_32 --# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+#define MODULE_PAX_UDEREF "UDEREF " -+#else -+#define MODULE_PAX_UDEREF "" -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#define MODULE_PAX_KERNEXEC "KERNEXEC " -+#else -+#define MODULE_PAX_KERNEXEC "" - #endif - -+#ifdef CONFIG_PAX_REFCOUNT -+#define MODULE_PAX_REFCOUNT "REFCOUNT " -+#else -+#define MODULE_PAX_REFCOUNT "" -+#endif -+ -+#ifdef CONFIG_GRKERNSEC -+#define MODULE_GRSEC "GRSECURITY " -+#else -+#define MODULE_GRSEC "" -+#endif -+ -+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_GRSEC MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF MODULE_PAX_REFCOUNT -+ - #endif /* _ASM_X86_MODULE_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/page_64_types.h linux-3.0.4/arch/x86/include/asm/page_64_types.h ---- linux-3.0.4/arch/x86/include/asm/page_64_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/page_64_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/paravirt.h linux-3.0.4/arch/x86/include/asm/paravirt.h ---- linux-3.0.4/arch/x86/include/asm/paravirt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/paravirt.h 2011-08-23 21:47:55.000000000 -0400 -@@ -658,6 +658,18 @@ static inline void set_pgd(pgd_t *pgdp, - 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)); -@@ -739,6 +751,21 @@ static inline void __set_fixmap(unsigned - 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) -@@ -955,7 +982,7 @@ 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 \ -@@ -1032,6 +1059,21 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/paravirt_types.h linux-3.0.4/arch/x86/include/asm/paravirt_types.h ---- linux-3.0.4/arch/x86/include/asm/paravirt_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/paravirt_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -78,19 +78,19 @@ 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 (*get_tsc_khz)(void); --}; -+} __no_const; - - struct pv_cpu_ops { - /* hooks for various privileged instructions */ -@@ -186,7 +186,7 @@ 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 { - /* -@@ -217,7 +217,7 @@ struct pv_apic_ops { - unsigned long start_eip, - unsigned long start_esp); - #endif --}; -+} __no_const; - - struct pv_mmu_ops { - unsigned long (*read_cr2)(void); -@@ -306,6 +306,7 @@ 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 */ - -@@ -317,6 +318,12 @@ 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; -@@ -327,7 +334,7 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/pgalloc.h linux-3.0.4/arch/x86/include/asm/pgalloc.h ---- linux-3.0.4/arch/x86/include/asm/pgalloc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgalloc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(s - 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)); - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable-2level.h linux-3.0.4/arch/x86/include/asm/pgtable-2level.h ---- linux-3.0.4/arch/x86/include/asm/pgtable-2level.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable-2level.h 2011-08-23 21:47:55.000000000 -0400 -@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t - - 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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable_32.h linux-3.0.4/arch/x86/include/asm/pgtable_32.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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, u - # 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, u - /* 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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - # 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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable-3level.h linux-3.0.4/arch/x86/include/asm/pgtable-3level.h ---- linux-3.0.4/arch/x86/include/asm/pgtable-3level.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable-3level.h 2011-08-23 21:47:55.000000000 -0400 -@@ -38,12 +38,16 @@ static inline void native_set_pte_atomic - - 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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable_64.h linux-3.0.4/arch/x86/include/asm/pgtable_64.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -16,10 +16,13 @@ - - extern pud_t level3_kernel_pgt[512]; - extern pud_t level3_ident_pgt[512]; -+extern pud_t level3_vmalloc_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 +64,9 @@ static inline void native_set_pte_atomic - - 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) -@@ -107,6 +112,13 @@ static inline void native_pud_clear(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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/pgtable.h linux-3.0.4/arch/x86/include/asm/pgtable.h ---- linux-3.0.4/arch/x86/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm - - #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 - - #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 - 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 - #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 *p - - 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(st - * 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, int count); -+#endif -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count); -+#else -+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count) {} -+#endif - - #include <asm-generic/pgtable.h> - #endif /* __ASSEMBLY__ */ -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_types.h linux-3.0.4/arch/x86/include/asm/pgtable_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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) -@@ -106,8 +109,8 @@ - #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_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT) -+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER) -+#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER) - #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) -@@ -166,8 +169,8 @@ - * 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 - -@@ -205,7 +208,17 @@ static inline pgdval_t pgd_flags(pgd_t p - { - 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; - -@@ -219,8 +232,6 @@ static inline pudval_t native_pud_val(pu - 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); -@@ -240,8 +251,6 @@ static inline pmdval_t native_pmd_val(pm - 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); -@@ -281,7 +290,6 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/processor.h linux-3.0.4/arch/x86/include/asm/processor.h ---- linux-3.0.4/arch/x86/include/asm/processor.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/processor.h 2011-08-23 21:47:55.000000000 -0400 -@@ -266,7 +266,7 @@ 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 -@@ -860,11 +860,18 @@ static inline void spin_lock_prefetch(co - */ - #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, \ -@@ -878,7 +885,7 @@ static inline void spin_lock_prefetch(co - */ - #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, \ -@@ -889,11 +896,7 @@ static inline void spin_lock_prefetch(co - 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. -@@ -908,7 +911,7 @@ extern unsigned long thread_saved_pc(str - #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; \ - }) - -@@ -918,13 +921,13 @@ extern unsigned long thread_saved_pc(str - /* - * 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_IA32) ? \ - IA32_PAGE_OFFSET : TASK_SIZE_MAX) -@@ -935,11 +938,11 @@ extern unsigned long thread_saved_pc(str - #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 \ - } - - /* -@@ -961,6 +964,10 @@ extern void start_thread(struct pt_regs - */ - #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 */ -diff -urNp linux-3.0.4/arch/x86/include/asm/ptrace.h linux-3.0.4/arch/x86/include/asm/ptrace.h ---- linux-3.0.4/arch/x86/include/asm/ptrace.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/ptrace.h 2011-08-23 21:47:55.000000000 -0400 -@@ -153,28 +153,29 @@ static inline unsigned long regs_return_ - } - - /* -- * 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 - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/reboot.h linux-3.0.4/arch/x86/include/asm/reboot.h ---- linux-3.0.4/arch/x86/include/asm/reboot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/reboot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/include/asm/rwsem.h linux-3.0.4/arch/x86/include/asm/rwsem.h ---- linux-3.0.4/arch/x86/include/asm/rwsem.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/rwsem.h 2011-08-23 21:47:55.000000000 -0400 -@@ -64,6 +64,14 @@ static inline void __down_read(struct rw - { - 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(st - "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(s - 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_s - 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_ - 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(str - { - 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(str - */ - 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)); - } -@@ -206,7 +262,15 @@ static inline long rwsem_atomic_update(l - { - long tmp = delta; - -- asm volatile(LOCK_PREFIX "xadd %0,%1" -+ asm volatile(LOCK_PREFIX "xadd %0,%1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %0,%1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (tmp), "+m" (sem->count) - : : "memory"); - -diff -urNp linux-3.0.4/arch/x86/include/asm/segment.h linux-3.0.4/arch/x86/include/asm/segment.h ---- linux-3.0.4/arch/x86/include/asm/segment.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/segment.h 2011-09-17 00:53:42.000000000 -0400 -@@ -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) -diff -urNp linux-3.0.4/arch/x86/include/asm/smp.h linux-3.0.4/arch/x86/include/asm/smp.h ---- linux-3.0.4/arch/x86/include/asm/smp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/smp.h 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_ - /* 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 __cpuinitd - 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 -urNp linux-3.0.4/arch/x86/include/asm/spinlock.h linux-3.0.4/arch/x86/include/asm/spinlock.h ---- linux-3.0.4/arch/x86/include/asm/spinlock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/spinlock.h 2011-08-23 21:47:55.000000000 -0400 -@@ -249,6 +249,14 @@ static inline int arch_write_can_lock(ar - static inline void arch_read_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX " addl $1,(%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jns 1f\n" - "call __read_lock_failed\n\t" - "1:\n" -@@ -258,6 +266,14 @@ static inline void arch_read_lock(arch_r - static inline void arch_write_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX " addl %1,(%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jz 1f\n" - "call __write_lock_failed\n\t" - "1:\n" -@@ -286,12 +302,29 @@ static inline int arch_write_trylock(arc - - static inline void arch_read_unlock(arch_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory"); -+ 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" (rw->lock) : : "memory"); - } - - static inline void arch_write_unlock(arch_rwlock_t *rw) - { -- 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" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory"); - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/stackprotector.h linux-3.0.4/arch/x86/include/asm/stackprotector.h ---- linux-3.0.4/arch/x86/include/asm/stackprotector.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/stackprotector.h 2011-08-23 21:47:55.000000000 -0400 -@@ -48,7 +48,7 @@ - * 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. -@@ -113,7 +113,7 @@ static inline void setup_stack_canary_se - - 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 -urNp linux-3.0.4/arch/x86/include/asm/stacktrace.h linux-3.0.4/arch/x86/include/asm/stacktrace.h ---- linux-3.0.4/arch/x86/include/asm/stacktrace.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/stacktrace.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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); -- --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); -+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 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 -urNp linux-3.0.4/arch/x86/include/asm/system.h linux-3.0.4/arch/x86/include/asm/system.h ---- linux-3.0.4/arch/x86/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -129,7 +129,7 @@ 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" \ -@@ -140,7 +140,7 @@ 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) -@@ -200,7 +200,7 @@ static inline unsigned long get_limit(un - { - unsigned long __limit; - asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); -- return __limit + 1; -+ return __limit; - } - - static inline void native_clts(void) -@@ -397,12 +397,12 @@ void enable_hlt(void); - - 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); - --void stop_this_cpu(void *dummy); -+void stop_this_cpu(void *dummy) __noreturn; - - /* - * Force strict CPU ordering. -diff -urNp linux-3.0.4/arch/x86/include/asm/thread_info.h linux-3.0.4/arch/x86/include/asm/thread_info.h ---- linux-3.0.4/arch/x86/include/asm/thread_info.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/thread_info.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 <asm/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 */ -@@ -34,18 +34,12 @@ 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; - int uaccess_err; - }; - --#define INIT_THREAD_INFO(tsk) \ -+#define INIT_THREAD_INFO \ - { \ -- .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ -@@ -56,7 +50,7 @@ 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__ */ -@@ -170,6 +164,23 @@ struct thread_info { - ret; \ - }) - -+#ifdef __ASSEMBLY__ -+/* how to get the thread information struct from ASM */ -+#define GET_THREAD_INFO(reg) \ -+ mov PER_CPU_VAR(current_tinfo), reg -+ -+/* use this one if reg already contains %esp */ -+#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) -@@ -180,35 +191,13 @@ struct thread_info { - */ - #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__ */ -- --/* how to get the thread information struct from ASM */ --#define GET_THREAD_INFO(reg) \ -- movl $-THREAD_SIZE, reg; \ -- andl %esp, reg -- --/* use this one if reg already contains %esp */ --#define GET_THREAD_INFO_WITH_ESP(reg) \ -- andl $-THREAD_SIZE, reg -- - #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. -@@ -216,21 +205,8 @@ static inline struct thread_info *curren - #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 -- -+/* how to get the current stack pointer from C */ -+register unsigned long current_stack_pointer asm("rsp") __used; - #endif - - #endif /* !X86_32 */ -@@ -266,5 +242,16 @@ 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 -urNp linux-3.0.4/arch/x86/include/asm/uaccess_32.h linux-3.0.4/arch/x86/include/asm/uaccess_32.h ---- linux-3.0.4/arch/x86/include/asm/uaccess_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess_32.h 2011-08-23 21:48:14.000000000 -0400 -@@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_u - static __always_inline unsigned long __must_check - __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) - { -+ pax_track_stack(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -61,6 +66,8 @@ __copy_to_user_inatomic(void __user *to, - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_to_user_ll(to, from, n); - } - -@@ -82,12 +89,16 @@ static __always_inline unsigned long __m - __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 +148,12 @@ static __always_inline unsigned long - __copy_from_user(void *to, const void __user *from, unsigned long n) - { - might_fault(); -+ -+ pax_track_stack(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -152,6 +169,8 @@ __copy_from_user(void *to, const void __ - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_from_user_ll(to, from, n); - } - -@@ -159,6 +178,10 @@ static __always_inline unsigned long __c - 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 +204,19 @@ 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; - --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); -+ return __copy_from_user_ll_nocache_nozero(to, from, 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 +226,61 @@ 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(from); -+ -+ if (unlikely(sz != -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) - { - int sz = __compiletime_object_size(to); - -- if (likely(sz == -1 || sz >= n)) -- n = _copy_from_user(to, from, n); -- else -+ if (unlikely(sz != -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; - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/uaccess_64.h linux-3.0.4/arch/x86/include/asm/uaccess_64.h ---- linux-3.0.4/arch/x86/include/asm/uaccess_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess_64.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -@@ -36,26 +39,26 @@ copy_user_generic(void *to, const void * - return ret; - } - --__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); -+static __always_inline __must_check unsigned long -+__copy_to_user(void __user *to, const void *from, unsigned len); -+static __always_inline __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); - - static inline unsigned long __must_check copy_from_user(void *to, - const void __user *from, -- unsigned long n) -+ unsigned 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 ((int)n > 0) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } - return n; - } - -@@ -64,110 +67,198 @@ int copy_to_user(void __user *dst, const - { - 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 size) - { -- int ret = 0; -+ int sz = __compiletime_object_size(dst); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -- return copy_user_generic(dst, (__force void *)src, size); -+ -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != -1 && sz < size)) { -+#ifdef CONFIG_DEBUG_VM -+ WARN(1, "Buffer overflow detected!\n"); -+#endif -+ 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 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 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 size) - { -- int ret = 0; -+ int sz = __compiletime_object_size(src); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != -1 && sz < size)) { -+#ifdef CONFIG_DEBUG_VM -+ WARN(1, "Buffer overflow detected!\n"); -+#endif -+ 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 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: -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force 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 size) - { -- int ret = 0; -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ if ((int)size < 0) -+ 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 void *)dst, -- (__force void *)src, size); -+ (__force 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 +267,7 @@ int __copy_in_user(void __user *dst, con - } - 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 +277,7 @@ int __copy_in_user(void __user *dst, con - - 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 +286,7 @@ int __copy_in_user(void __user *dst, con - } - 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, -@@ -203,8 +294,16 @@ int __copy_in_user(void __user *dst, con - return ret; - } - default: -+ -+#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 void *)dst, -- (__force void *)src, size); -+ (__force const void *)src, size); - } - } - -@@ -221,33 +320,72 @@ __must_check unsigned long __clear_user( - static __must_check __always_inline int - __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size) - { -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ 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 const void *)src, size); - } - --static __must_check __always_inline int -+static __must_check __always_inline unsigned long - __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) - { -+ if ((int)size < 0) -+ 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 void *)dst, src, size); - } - --extern long __copy_user_nocache(void *dst, const void __user *src, -+extern unsigned long __copy_user_nocache(void *dst, const void __user *src, - unsigned size, int zerorest); - --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 size) - { - might_sleep(); -+ -+ if ((int)size < 0) -+ 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, -+static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, - unsigned size) - { -+ if ((int)size < 0) -+ 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 -+extern unsigned long - copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest); - - #endif /* _ASM_X86_UACCESS_64_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/uaccess.h linux-3.0.4/arch/x86/include/asm/uaccess.h ---- linux-3.0.4/arch/x86/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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) \ -@@ -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 bu - * 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 bu - ".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 bu - * 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 bu - * 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 bu - #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 -urNp linux-3.0.4/arch/x86/include/asm/x86_init.h linux-3.0.4/arch/x86/include/asm/x86_init.h ---- linux-3.0.4/arch/x86/include/asm/x86_init.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/x86_init.h 2011-08-23 21:47:55.000000000 -0400 -@@ -28,7 +28,7 @@ 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 -@@ -42,7 +42,7 @@ 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 -@@ -55,7 +55,7 @@ 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 -@@ -65,7 +65,7 @@ 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 -@@ -76,7 +76,7 @@ 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 -@@ -86,7 +86,7 @@ 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 -@@ -101,7 +101,7 @@ 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 -@@ -109,7 +109,7 @@ struct x86_init_timers { - */ - struct x86_init_iommu { - int (*iommu_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_pci - platform specific pci init functions -@@ -123,7 +123,7 @@ 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 -@@ -139,7 +139,7 @@ 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 -@@ -147,7 +147,7 @@ struct x86_init_ops { - */ - struct x86_cpuinit_ops { - void (*setup_percpu_clockev)(void); --}; -+} __no_const; - - /** - * struct x86_platform_ops - platform specific runtime functions -@@ -166,7 +166,7 @@ struct x86_platform_ops { - bool (*is_untracked_pat_range)(u64 start, u64 end); - void (*nmi_init)(void); - int (*i8042_detect)(void); --}; -+} __no_const; - - struct pci_dev; - -@@ -174,7 +174,7 @@ struct x86_msi_ops { - int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); - void (*teardown_msi_irq)(unsigned int irq); - void (*teardown_msi_irqs)(struct pci_dev *dev); --}; -+} __no_const; - - extern struct x86_init_ops x86_init; - extern struct x86_cpuinit_ops x86_cpuinit; -diff -urNp linux-3.0.4/arch/x86/include/asm/xsave.h linux-3.0.4/arch/x86/include/asm/xsave.h ---- linux-3.0.4/arch/x86/include/asm/xsave.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/xsave.h 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,11 @@ static inline int xsave_user(struct xsav - { - 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. -@@ -100,6 +105,11 @@ static inline int xrestore_user(struct x - 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 -urNp linux-3.0.4/arch/x86/Kconfig linux-3.0.4/arch/x86/Kconfig ---- linux-3.0.4/arch/x86/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig 2011-09-17 00:58:36.000000000 -0400 -@@ -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 -@@ -1018,7 +1018,7 @@ 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 -@@ -1055,7 +1055,7 @@ 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. -@@ -1109,7 +1109,7 @@ 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 -@@ -1483,6 +1483,7 @@ 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 -@@ -1540,6 +1541,7 @@ 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. - -@@ -1603,6 +1605,7 @@ 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 -@@ -1634,9 +1637,10 @@ 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 -urNp linux-3.0.4/arch/x86/Kconfig.cpu linux-3.0.4/arch/x86/Kconfig.cpu ---- linux-3.0.4/arch/x86/Kconfig.cpu 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig.cpu 2011-08-23 21:47:55.000000000 -0400 -@@ -338,7 +338,7 @@ 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 -@@ -362,7 +362,7 @@ 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 -@@ -408,7 +408,7 @@ 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 -urNp linux-3.0.4/arch/x86/Kconfig.debug linux-3.0.4/arch/x86/Kconfig.debug ---- linux-3.0.4/arch/x86/Kconfig.debug 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig.debug 2011-08-23 21:47:55.000000000 -0400 -@@ -81,7 +81,7 @@ 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 -@@ -99,7 +99,7 @@ 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 -diff -urNp linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile ---- linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -41,6 +41,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os - $(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 -urNp linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S ---- linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/acpi/sleep.c linux-3.0.4/arch/x86/kernel/acpi/sleep.c ---- linux-3.0.4/arch/x86/kernel/acpi/sleep.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/sleep.c 2011-08-23 21:47:55.000000000 -0400 -@@ -94,8 +94,12 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S ---- linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/alternative.c linux-3.0.4/arch/x86/kernel/alternative.c ---- linux-3.0.4/arch/x86/kernel/alternative.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/alternative.c 2011-08-23 21:47:55.000000000 -0400 -@@ -313,7 +313,7 @@ static void alternatives_smp_lock(const - 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); -@@ -334,7 +334,7 @@ static void alternatives_smp_unlock(cons - 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); -@@ -503,7 +503,7 @@ void __init_or_module apply_paravirt(str - - 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); - -@@ -571,7 +571,7 @@ void __init alternative_instructions(voi - 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(); - } -@@ -588,13 +588,17 @@ void __init alternative_instructions(voi - * 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. */ -@@ -616,36 +620,22 @@ void *__init_or_module text_poke_early(v - */ - 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 -urNp linux-3.0.4/arch/x86/kernel/apic/apic.c linux-3.0.4/arch/x86/kernel/apic/apic.c ---- linux-3.0.4/arch/x86/kernel/apic/apic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apic/apic.c 2011-08-23 21:48:14.000000000 -0400 -@@ -173,7 +173,7 @@ int first_system_vector = 0xfe; - /* - * Debug level, exported for io_apic.c - */ --unsigned int apic_verbosity; -+int apic_verbosity; - - int pic_mode; - -@@ -1834,7 +1834,7 @@ void smp_error_interrupt(struct pt_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); -@@ -2190,6 +2190,8 @@ static int __cpuinit apic_cluster_num(vo - u16 *bios_cpu_apicid; - DECLARE_BITMAP(clustermap, NUM_APIC_CLUSTERS); - -+ pax_track_stack(); -+ - bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid); - bitmap_zero(clustermap, NUM_APIC_CLUSTERS); - -diff -urNp linux-3.0.4/arch/x86/kernel/apic/io_apic.c linux-3.0.4/arch/x86/kernel/apic/io_apic.c ---- linux-3.0.4/arch/x86/kernel/apic/io_apic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apic/io_apic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1028,7 +1028,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, - } - 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. -@@ -1036,7 +1036,7 @@ 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); - } -@@ -2364,7 +2364,7 @@ static void ack_apic_edge(struct irq_dat - ack_APIC_irq(); - } - --atomic_t irq_mis_count; -+atomic_unchecked_t irq_mis_count; - - /* - * IO-APIC versions below 0x20 don't support EOI register. -@@ -2472,7 +2472,7 @@ static void ack_apic_level(struct irq_da - * 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 -urNp linux-3.0.4/arch/x86/kernel/apm_32.c linux-3.0.4/arch/x86/kernel/apm_32.c ---- linux-3.0.4/arch/x86/kernel/apm_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apm_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -413,7 +413,7 @@ 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 */ -@@ -591,7 +591,10 @@ 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; -@@ -600,7 +603,11 @@ 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; -@@ -667,7 +674,10 @@ static long __apm_bios_call_simple(void - 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; -@@ -675,7 +685,11 @@ static long __apm_bios_call_simple(void - &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; - } -@@ -2349,12 +2363,15 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/asm-offsets_64.c linux-3.0.4/arch/x86/kernel/asm-offsets_64.c ---- linux-3.0.4/arch/x86/kernel/asm-offsets_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/asm-offsets_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -69,6 +69,7 @@ int main(void) - BLANK(); - #undef ENTRY - -+ DEFINE(TSS_size, sizeof(struct tss_struct)); - OFFSET(TSS_ist, tss_struct, x86_tss.ist); - BLANK(); - -diff -urNp linux-3.0.4/arch/x86/kernel/asm-offsets.c linux-3.0.4/arch/x86/kernel/asm-offsets.c ---- linux-3.0.4/arch/x86/kernel/asm-offsets.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/asm-offsets.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/cpu/amd.c linux-3.0.4/arch/x86/kernel/cpu/amd.c ---- linux-3.0.4/arch/x86/kernel/cpu/amd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/amd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -647,7 +647,7 @@ static unsigned int __cpuinit amd_size_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 -urNp linux-3.0.4/arch/x86/kernel/cpu/common.c linux-3.0.4/arch/x86/kernel/cpu/common.c ---- linux-3.0.4/arch/x86/kernel/cpu/common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/common.c 2011-08-23 21:47:55.000000000 -0400 -@@ -83,60 +83,6 @@ static const struct cpu_dev __cpuinitcon - - 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); -@@ -371,7 +317,7 @@ 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 */ -@@ -840,6 +786,10 @@ static void __cpuinit identify_cpu(struc - /* Filter out anything that depends on CPUID levels we don't have */ - filter_cpuid_features(c, true); - -+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || (defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32)) -+ 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; -@@ -1019,6 +969,9 @@ static __init int setup_disablecpuid(cha - } - __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 }; - -@@ -1034,7 +987,7 @@ DEFINE_PER_CPU(struct task_struct *, cur - 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) = -@@ -1099,7 +1052,7 @@ struct pt_regs * __cpuinit idle_regs(str - { - memset(regs, 0, sizeof(struct pt_regs)); - regs->fs = __KERNEL_PERCPU; -- regs->gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, regs->gs); - - return regs; - } -@@ -1154,7 +1107,7 @@ 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 -@@ -1180,7 +1133,7 @@ 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(); -@@ -1189,7 +1142,6 @@ void __cpuinit cpu_init(void) - wrmsrl(MSR_KERNEL_GS_BASE, 0); - barrier(); - -- x86_configure_nx(); - if (cpu != 0) - enable_x2apic(); - -@@ -1243,7 +1195,7 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/cpu/intel.c linux-3.0.4/arch/x86/kernel/cpu/intel.c ---- linux-3.0.4/arch/x86/kernel/cpu/intel.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/intel.c 2011-08-29 23:30:14.000000000 -0400 -@@ -172,7 +172,7 @@ static void __cpuinit trap_init_f00f_bug - * 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 -urNp linux-3.0.4/arch/x86/kernel/cpu/Makefile linux-3.0.4/arch/x86/kernel/cpu/Makefile ---- linux-3.0.4/arch/x86/kernel/cpu/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c ---- linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c 2011-08-23 21:47:55.000000000 -0400 -@@ -46,6 +46,7 @@ - #include <asm/ipi.h> - #include <asm/mce.h> - #include <asm/msr.h> -+#include <asm/local.h> - - #include "mce-internal.h" - -@@ -208,7 +209,7 @@ 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"); - } -@@ -236,10 +237,10 @@ 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) -@@ -263,7 +264,7 @@ static void mce_panic(char *msg, struct - /* - * 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(); - -@@ -271,7 +272,7 @@ static void mce_panic(char *msg, struct - 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 */ -@@ -638,7 +639,7 @@ 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; -@@ -1452,14 +1453,14 @@ void __cpuinit mcheck_cpu_init(struct cp - */ - - static DEFINE_SPINLOCK(mce_state_lock); --static int open_count; /* #times opened */ -+static local_t open_count; /* #times opened */ - static int open_exclu; /* already open exclusive? */ - - static int mce_open(struct inode *inode, struct file *file) - { - spin_lock(&mce_state_lock); - -- if (open_exclu || (open_count && (file->f_flags & O_EXCL))) { -+ if (open_exclu || (local_read(&open_count) && (file->f_flags & O_EXCL))) { - spin_unlock(&mce_state_lock); - - return -EBUSY; -@@ -1467,7 +1468,7 @@ static int mce_open(struct inode *inode, - - if (file->f_flags & O_EXCL) - open_exclu = 1; -- open_count++; -+ local_inc(&open_count); - - spin_unlock(&mce_state_lock); - -@@ -1478,7 +1479,7 @@ static int mce_release(struct inode *ino - { - spin_lock(&mce_state_lock); - -- open_count--; -+ local_dec(&open_count); - open_exclu = 0; - - spin_unlock(&mce_state_lock); -@@ -2163,7 +2164,7 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c ---- linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-08-23 21:47:55.000000000 -0400 -@@ -215,7 +215,9 @@ static int inject_init(void) - if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL)) - return -ENOMEM; - printk(KERN_INFO "Machine check injector initialized\n"); -- mce_chrdev_ops.write = mce_write; -+ pax_open_kernel(); -+ *(void **)&mce_chrdev_ops.write = mce_write; -+ pax_close_kernel(); - register_die_notifier(&mce_raise_nb); - return 0; - } -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c ---- linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c 2011-08-29 23:26:21.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h ---- linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-08-26 19:49:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/cpu/perf_event.c linux-3.0.4/arch/x86/kernel/cpu/perf_event.c ---- linux-3.0.4/arch/x86/kernel/cpu/perf_event.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/perf_event.c 2011-08-23 21:48:14.000000000 -0400 -@@ -781,6 +781,8 @@ static int x86_schedule_events(struct cp - int i, j, w, wmax, num = 0; - struct hw_perf_event *hwc; - -+ pax_track_stack(); -+ - bitmap_zero(used_mask, X86_PMC_IDX_MAX); - - for (i = 0; i < n; i++) { -@@ -1872,7 +1874,7 @@ perf_callchain_user(struct perf_callchai - break; - - perf_callchain_store(entry, frame.return_address); -- fp = frame.next_frame; -+ fp = (__force const void __user *)frame.next_frame; - } - } - -diff -urNp linux-3.0.4/arch/x86/kernel/crash.c linux-3.0.4/arch/x86/kernel/crash.c ---- linux-3.0.4/arch/x86/kernel/crash.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/crash.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ static void kdump_nmi_callback(int cpu, - regs = args->regs; - - #ifdef CONFIG_X86_32 -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -diff -urNp linux-3.0.4/arch/x86/kernel/doublefault_32.c linux-3.0.4/arch/x86/kernel/doublefault_32.c ---- linux-3.0.4/arch/x86/kernel/doublefault_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/doublefault_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 __cach - /* 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 -urNp linux-3.0.4/arch/x86/kernel/dumpstack_32.c linux-3.0.4/arch/x86/kernel/dumpstack_32.c ---- linux-3.0.4/arch/x86/kernel/dumpstack_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task - 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(); -@@ -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(" Bad EIP value."); - break; - } -- if (ip == (u8 *)regs->ip) -+ if (ip == (u8 *)regs->ip + cs_base) - printk("<%02x> ", c); - else - printk("%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)) -diff -urNp linux-3.0.4/arch/x86/kernel/dumpstack_64.c linux-3.0.4/arch/x86/kernel/dumpstack_64.c ---- linux-3.0.4/arch/x86/kernel/dumpstack_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -147,9 +147,9 @@ void dump_trace(struct task_struct *task - 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; -@@ -167,10 +167,10 @@ void dump_trace(struct task_struct *task - * 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); - -@@ -178,7 +178,7 @@ void dump_trace(struct task_struct *task - 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>"); - /* -@@ -197,7 +197,7 @@ void dump_trace(struct task_struct *task - 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 -@@ -218,7 +218,8 @@ void dump_trace(struct task_struct *task - /* - * 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); - put_cpu(); - } - EXPORT_SYMBOL(dump_trace); -diff -urNp linux-3.0.4/arch/x86/kernel/dumpstack.c linux-3.0.4/arch/x86/kernel/dumpstack.c ---- linux-3.0.4/arch/x86/kernel/dumpstack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -35,9 +38,8 @@ void printk_address(unsigned long addres - 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 = tinfo->task; - unsigned long ret_addr; - int index = task->curr_ret_stack; - -@@ -58,7 +60,7 @@ print_ftrace_graph_addr(unsigned long ad - 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 - -@@ -69,10 +71,8 @@ print_ftrace_graph_addr(unsigned long ad - * 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; -@@ -83,14 +83,14 @@ static inline int valid_stack_ptr(struct - } - - 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; -@@ -102,7 +102,7 @@ print_context_stack(struct thread_info * - } 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++; - } -@@ -111,7 +111,7 @@ print_context_stack(struct thread_info * - 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) -@@ -119,7 +119,7 @@ print_context_stack_bp(struct thread_inf - 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)) -@@ -128,7 +128,7 @@ print_context_stack_bp(struct thread_inf - 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; -@@ -186,7 +186,7 @@ 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); -@@ -222,6 +222,8 @@ 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)) -@@ -243,7 +245,10 @@ void __kprobes oops_end(unsigned long fl - 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) -@@ -269,7 +274,7 @@ int __kprobes __die(const char *str, str - - show_registers(regs); - #ifdef CONFIG_X86_32 -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; - } else { -@@ -297,7 +302,7 @@ void die(const char *str, struct pt_regs - 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 -urNp linux-3.0.4/arch/x86/kernel/early_printk.c linux-3.0.4/arch/x86/kernel/early_printk.c ---- linux-3.0.4/arch/x86/kernel/early_printk.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/early_printk.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -179,6 +180,8 @@ asmlinkage void early_printk(const char - int n; - va_list ap; - -+ pax_track_stack(); -+ - va_start(ap, fmt); - n = vscnprintf(buf, sizeof(buf), fmt, ap); - early_console->write(early_console, buf, n); -diff -urNp linux-3.0.4/arch/x86/kernel/entry_32.S linux-3.0.4/arch/x86/kernel/entry_32.S ---- linux-3.0.4/arch/x86/kernel/entry_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/entry_32.S 2011-08-30 18:23:52.000000000 -0400 -@@ -185,13 +185,146 @@ - /*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 -@@ -214,7 +347,7 @@ - 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 -@@ -222,6 +355,15 @@ - 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 -@@ -332,7 +474,15 @@ check_userspace: - movb PT_CS(%esp), %al - andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax - 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 -@@ -344,7 +494,7 @@ 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 -+ jmp restore_all_pax - END(ret_from_exception) - - #ifdef CONFIG_PREEMPT -@@ -394,23 +544,34 @@ 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 -@@ -433,12 +594,24 @@ 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 - -@@ -455,6 +628,9 @@ 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 -@@ -481,11 +657,17 @@ 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) -@@ -518,6 +700,15 @@ 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: -@@ -577,14 +768,34 @@ 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 -@@ -613,29 +824,23 @@ 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 -- 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 - xorl %edx, %edx - call do_notify_resume -@@ -648,6 +853,9 @@ 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 -@@ -670,6 +878,10 @@ END(syscall_exit_work) - - 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 -@@ -752,6 +964,36 @@ 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 -@@ -761,8 +1003,15 @@ 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 -@@ -1213,7 +1462,6 @@ return_to_handler: - jmp *%ecx - #endif - --.section .rodata,"a" - #include "syscall_table_32.S" - - syscall_table_size=(.-sys_call_table) -@@ -1259,9 +1507,12 @@ 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 -@@ -1346,6 +1597,9 @@ 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 - -@@ -1382,6 +1636,9 @@ 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 -diff -urNp linux-3.0.4/arch/x86/kernel/entry_64.S linux-3.0.4/arch/x86/kernel/entry_64.S ---- linux-3.0.4/arch/x86/kernel/entry_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/entry_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -53,6 +53,7 @@ - #include <asm/paravirt.h> - #include <asm/ftrace.h> - #include <asm/percpu.h> -+#include <asm/pgtable.h> - - /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ - #include <linux/elf-em.h> -@@ -176,6 +177,264 @@ 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 -+#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 1f -+ mov %cs,%edi -+ cmp $__KERNEL_CS,%edi -+ jz 3f -+ ljmpq __KERNEL_CS,3f -+1: ljmpq __KERNEXEC_KERNEL_CS,2f -+2: SET_RDI_INTO_CR0 -+3: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI) -+#endif -+ -+ popq %rdi -+ retq -+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 -+ jnz 2f -+ GET_CR0_INTO_RDI -+ btr $16,%rdi -+ ljmpq __KERNEL_CS,1f -+1: SET_RDI_INTO_CR0 -+2: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI); -+#endif -+ -+ popq %rdi -+ retq -+ENDPROC(pax_exit_kernel) -+#endif -+ -+ .macro pax_enter_kernel_user -+#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 -+ push %rax -+ call pax_randomize_kstack -+ pop %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 -+ 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 -+ 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 -+/* -+ * r10: thread_info -+ * rcx, rdx: can be clobbered -+ */ -+ENTRY(pax_erase_kstack) -+ pushq %rdi -+ pushq %rax -+ pushq %r10 -+ -+ GET_THREAD_INFO(%r10) -+ mov TI_lowest_stack(%r10), %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(%r10), %rdi -+ sub $256, %rdi -+ mov %rdi, TI_lowest_stack(%r10) -+ -+ popq %r10 -+ popq %rax -+ popq %rdi -+ ret -+ENDPROC(pax_erase_kstack) -+#endif - - .macro TRACE_IRQS_IRETQ offset=ARGOFFSET - #ifdef CONFIG_TRACE_IRQFLAGS -@@ -318,7 +577,7 @@ ENTRY(save_args) - leaq -RBP+8(%rsp),%rdi /* arg1 for handler */ - movq_cfi rbp, 8 /* push %rbp */ - leaq 8(%rsp), %rbp /* mov %rsp, %ebp */ -- testl $3, CS(%rdi) -+ testb $3, CS(%rdi) - je 1f - SWAPGS - /* -@@ -409,7 +668,7 @@ ENTRY(ret_from_fork) - - RESTORE_REST - -- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread? -+ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread? - je int_ret_from_sys_call - - testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET -@@ -455,7 +714,7 @@ 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 -@@ -468,12 +727,13 @@ ENTRY(system_call_after_swapgs) - - movq %rsp,PER_CPU_VAR(old_rsp) - movq PER_CPU_VAR(kernel_stack),%rsp -+ pax_enter_kernel_user - /* - * No need to follow this irqs off/on section - it's straight - * and short: - */ - ENABLE_INTERRUPTS(CLBR_NONE) -- SAVE_ARGS 8,1 -+ SAVE_ARGS 8*6,1 - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) - CFI_REL_OFFSET rip,RIP-ARGOFFSET -@@ -502,6 +762,8 @@ sysret_check: - andl %edi,%edx - jnz sysret_careful - CFI_REMEMBER_STATE -+ pax_exit_kernel_user -+ pax_erase_kstack - /* - * sysretq will re-enable interrupts: - */ -@@ -560,6 +822,9 @@ auditsys: - 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 */ - jmp system_call_fastpath - -@@ -590,6 +855,9 @@ 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 -@@ -611,7 +879,7 @@ tracesys: - GLOBAL(int_ret_from_sys_call) - DISABLE_INTERRUPTS(CLBR_NONE) - TRACE_IRQS_OFF -- testl $3,CS-ARGOFFSET(%rsp) -+ testb $3,CS-ARGOFFSET(%rsp) - je retint_restore_args - movl $_TIF_ALLWORK_MASK,%edi - /* edi: mask to check */ -@@ -793,6 +1061,16 @@ END(interrupt) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP - call save_args - PARTIAL_FRAME 0 -+#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 - -@@ -825,7 +1103,7 @@ ret_from_intr: - CFI_ADJUST_CFA_OFFSET -8 - exit_intr: - GET_THREAD_INFO(%rcx) -- testl $3,CS-ARGOFFSET(%rsp) -+ testb $3,CS-ARGOFFSET(%rsp) - je retint_kernel - - /* Interrupt came from user space */ -@@ -847,12 +1125,18 @@ retint_swapgs: /* return to user-space - * The iretq could re-enable interrupts: - */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel_user -+ pax_erase_kstack - TRACE_IRQS_IRETQ - SWAPGS - jmp restore_args - - retint_restore_args: /* return to kernel space */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80,0x7+RIP-ARGOFFSET(%rsp) -+#endif - /* - * The iretq could re-enable interrupts: - */ -@@ -1027,6 +1311,16 @@ 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 -@@ -1044,6 +1338,16 @@ 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 -@@ -1052,7 +1356,7 @@ ENTRY(\sym) - END(\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 -@@ -1062,8 +1366,24 @@ 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) -@@ -1080,6 +1400,16 @@ 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 */ -@@ -1099,6 +1429,16 @@ 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 */ -@@ -1361,16 +1701,35 @@ 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 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80,0x7(%rsp) -+#endif -+ 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 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80,0x7(%rsp) -+#endif - jmp irq_return - paranoid_userspace: - GET_THREAD_INFO(%rcx) -@@ -1426,7 +1785,7 @@ 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 -@@ -1490,6 +1849,16 @@ ENTRY(nmi) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - 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 -@@ -1500,12 +1869,32 @@ ENTRY(nmi) - DISABLE_INTERRUPTS(CLBR_NONE) - testl %ebx,%ebx /* swapgs needed? */ - jnz nmi_restore -- testl $3,CS(%rsp) -+ testb $3,CS(%rsp) - jnz nmi_userspace -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel -+ SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80,0x7(%rsp) -+#endif -+ jmp irq_return -+#endif - nmi_swapgs: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel_user -+#else -+ pax_exit_kernel -+#endif - SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ jmp irq_return - nmi_restore: -+ pax_exit_kernel - RESTORE_ALL 8 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80,0x7(%rsp) -+#endif - jmp irq_return - nmi_userspace: - GET_THREAD_INFO(%rcx) -diff -urNp linux-3.0.4/arch/x86/kernel/ftrace.c linux-3.0.4/arch/x86/kernel/ftrace.c ---- linux-3.0.4/arch/x86/kernel/ftrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ftrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -126,7 +126,7 @@ static void *mod_code_ip; /* holds the - 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, - - 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, uns - { - 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_fun - 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 - { - unsigned char code[MCOUNT_INSN_SIZE]; - -+ ip = ktla_ktva(ip); -+ - if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE)) - return -EFAULT; - -diff -urNp linux-3.0.4/arch/x86/kernel/head32.c linux-3.0.4/arch/x86/kernel/head32.c ---- linux-3.0.4/arch/x86/kernel/head32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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) - { -@@ -33,7 +34,7 @@ void __init i386_start_kernel(void) - { - memblock_init(); - -- memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS"); -+ memblock_x86_reserve_range(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop), "TEXT DATA BSS"); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff -urNp linux-3.0.4/arch/x86/kernel/head_32.S linux-3.0.4/arch/x86/kernel/head_32.S ---- linux-3.0.4/arch/x86/kernel/head_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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_P - 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 -urNp linux-3.0.4/arch/x86/kernel/head_64.S linux-3.0.4/arch/x86/kernel/head_64.S ---- linux-3.0.4/arch/x86/kernel/head_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -19,6 +19,7 @@ - #include <asm/cache.h> - #include <asm/processor-flags.h> - #include <asm/percpu.h> -+#include <asm/cpufeature.h> - - #ifdef CONFIG_PARAVIRT - #include <asm/asm-offsets.h> -@@ -38,6 +39,10 @@ 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_VMEMMAP_START = pgd_index(VMEMMAP_START) -+L3_VMEMMAP_START = pud_index(VMEMMAP_START) - - .text - __HEAD -@@ -85,35 +90,22 @@ 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_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, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+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 + (506*8)(%rip) -+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) - - /* - * Fixup the kernel text+data virtual addresses. Note that -@@ -160,8 +152,8 @@ 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 +175,14 @@ 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 -+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%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 */ -@@ -269,7 +266,7 @@ 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 +311,23 @@ 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" --#endif /* CONFIG_EARLY_PRINTK */ - .previous -+#endif /* CONFIG_EARLY_PRINTK */ - -+ .section .rodata,"a",@progbits - #define NEXT_PAGE(name) \ - .balign PAGE_SIZE; \ - ENTRY(name) -@@ -338,7 +340,6 @@ 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 +350,36 @@ 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_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_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 +387,23 @@ 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) - /* -@@ -389,33 +416,55 @@ 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 - - __PAGE_ALIGNED_BSS - .align PAGE_SIZE -diff -urNp linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c ---- linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/i8259.c linux-3.0.4/arch/x86/kernel/i8259.c ---- linux-3.0.4/arch/x86/kernel/i8259.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/i8259.c 2011-08-23 21:47:55.000000000 -0400 -@@ -210,7 +210,7 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/init_task.c linux-3.0.4/arch/x86/kernel/init_task.c ---- linux-3.0.4/arch/x86/kernel/init_task.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/init_task.c 2011-08-23 21:47:55.000000000 -0400 -@@ -20,8 +20,7 @@ static struct sighand_struct init_sighan - * 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 -urNp linux-3.0.4/arch/x86/kernel/ioport.c linux-3.0.4/arch/x86/kernel/ioport.c ---- linux-3.0.4/arch/x86/kernel/ioport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ioport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 - - 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 - * 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 - 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 -urNp linux-3.0.4/arch/x86/kernel/irq_32.c linux-3.0.4/arch/x86/kernel/irq_32.c ---- linux-3.0.4/arch/x86/kernel/irq_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/irq_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ 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) -@@ -54,8 +54,8 @@ static inline void print_stack_overflow( - * 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); -@@ -75,10 +75,9 @@ static void call_on_stack(void *func, vo - 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); - - /* -@@ -87,21 +86,16 @@ execute_on_irq_stack(int overflow, struc - * 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 softirq bits in preempt_count so that the -- * softirq checks work in the hardirq context. -- */ -- irqctx->tinfo.preempt_count = -- (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) | -- (curctx->tinfo.preempt_count & SOFTIRQ_MASK); -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(MAKE_MM_SEG(0)); -+#endif - - if (unlikely(overflow)) - call_on_stack(print_stack_overflow, isp); -@@ -113,6 +107,11 @@ execute_on_irq_stack(int overflow, struc - : "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 +120,11 @@ execute_on_irq_stack(int overflow, struc - */ - 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 +133,6 @@ 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 +142,22 @@ 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(): - */ -diff -urNp linux-3.0.4/arch/x86/kernel/irq.c linux-3.0.4/arch/x86/kernel/irq.c ---- linux-3.0.4/arch/x86/kernel/irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ - #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; -@@ -116,9 +116,9 @@ int arch_show_interrupts(struct seq_file - 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; - } -@@ -158,10 +158,10 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/kgdb.c linux-3.0.4/arch/x86/kernel/kgdb.c ---- linux-3.0.4/arch/x86/kernel/kgdb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kgdb.c 2011-08-23 21:47:55.000000000 -0400 -@@ -124,11 +124,11 @@ char *dbg_get_reg(int regno, void *mem, - #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: -@@ -473,12 +473,12 @@ int kgdb_arch_handle_exception(int e_vec - 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()); - } - -@@ -534,7 +534,7 @@ static int __kgdb_notify(struct die_args - return NOTIFY_DONE; - - 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 -urNp linux-3.0.4/arch/x86/kernel/kprobes.c linux-3.0.4/arch/x86/kernel/kprobes.c ---- linux-3.0.4/arch/x86/kernel/kprobes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kprobes.c 2011-08-23 21:47:55.000000000 -0400 -@@ -115,8 +115,11 @@ static void __kprobes __synthesize_relat - } __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'.*/ -@@ -153,7 +156,7 @@ static int __kprobes can_boost(kprobe_op - 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: -@@ -314,7 +317,9 @@ static int __kprobes __copy_instruction( - } - } - insn_get_length(&insn); -+ pax_open_kernel(); - memcpy(dest, insn.kaddr, insn.length); -+ pax_close_kernel(); - - #ifdef CONFIG_X86_64 - if (insn_rip_relative(&insn)) { -@@ -338,7 +343,9 @@ static int __kprobes __copy_instruction( - (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; -@@ -352,12 +359,12 @@ static void __kprobes arch_copy_kprobe(s - */ - __copy_instruction(p->ainsn.insn, p->addr, 0); - -- if (can_boost(p->addr)) -+ if (can_boost(ktla_ktva(p->addr))) - p->ainsn.boostable = 0; - else - p->ainsn.boostable = -1; - -- p->opcode = *p->addr; -+ p->opcode = *(ktla_ktva(p->addr)); - } - - int __kprobes arch_prepare_kprobe(struct kprobe *p) -@@ -474,7 +481,7 @@ static void __kprobes setup_singlestep(s - * 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; - } -@@ -493,7 +500,7 @@ static void __kprobes setup_singlestep(s - 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); - } - - /* -@@ -572,7 +579,7 @@ static int __kprobes kprobe_handler(stru - 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 -@@ -817,7 +824,7 @@ static void __kprobes resume_execution(s - 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; - -@@ -999,7 +1006,7 @@ int __kprobes kprobe_exceptions_notify(s - 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) { -@@ -1381,7 +1388,7 @@ int __kprobes arch_prepare_optimized_kpr - * 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; - -@@ -1402,11 +1409,11 @@ int __kprobes arch_prepare_optimized_kpr - 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 + -@@ -1428,7 +1435,7 @@ static void __kprobes setup_optimize_kpr - ((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 -urNp linux-3.0.4/arch/x86/kernel/kvm.c linux-3.0.4/arch/x86/kernel/kvm.c ---- linux-3.0.4/arch/x86/kernel/kvm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kvm.c 2011-08-24 18:10:12.000000000 -0400 -@@ -426,6 +426,7 @@ static void __init paravirt_ops_setup(vo - pv_mmu_ops.set_pud = kvm_set_pud; - #if PAGETABLE_LEVELS == 4 - pv_mmu_ops.set_pgd = kvm_set_pgd; -+ pv_mmu_ops.set_pgd_batched = kvm_set_pgd; - #endif - #endif - pv_mmu_ops.flush_tlb_user = kvm_flush_tlb; -diff -urNp linux-3.0.4/arch/x86/kernel/ldt.c linux-3.0.4/arch/x86/kernel/ldt.c ---- linux-3.0.4/arch/x86/kernel/ldt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ldt.c 2011-08-23 21:47:55.000000000 -0400 -@@ -67,13 +67,13 @@ static int alloc_ldt(mm_context_t *pc, i - 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) { -@@ -95,7 +95,7 @@ static inline int copy_ldt(mm_context_t - 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; - } - -@@ -116,6 +116,24 @@ int init_new_context(struct task_struct - 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; - } - -@@ -230,6 +248,13 @@ static int write_ldt(void __user *ptr, u - } - } - -+#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 -urNp linux-3.0.4/arch/x86/kernel/machine_kexec_32.c linux-3.0.4/arch/x86/kernel/machine_kexec_32.c ---- linux-3.0.4/arch/x86/kernel/machine_kexec_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/machine_kexec_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -27,7 +27,7 @@ - #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; - -@@ -39,7 +39,7 @@ static void set_idt(void *newidt, __u16 - } - - --static void set_gdt(void *newgdt, __u16 limit) -+static void set_gdt(struct desc_struct *newgdt, __u16 limit) - { - struct desc_ptr curgdt; - -@@ -217,7 +217,7 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/microcode_intel.c linux-3.0.4/arch/x86/kernel/microcode_intel.c ---- linux-3.0.4/arch/x86/kernel/microcode_intel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/microcode_intel.c 2011-08-23 21:47:55.000000000 -0400 -@@ -440,13 +440,13 @@ static enum ucode_state request_microcod - - 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, (__force const void __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 void *)buf, size, &get_ucode_user); - } - - static void microcode_fini_cpu(int cpu) -diff -urNp linux-3.0.4/arch/x86/kernel/module.c linux-3.0.4/arch/x86/kernel/module.c ---- linux-3.0.4/arch/x86/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,21 +36,66 @@ - #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) - 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 -+ -+} -+ - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) - { - vfree(module_region); - } - -+#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 -+ - /* We don't need anything special. */ - int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, -@@ -70,14 +115,16 @@ 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 -@@ -86,11 +133,15 @@ 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", -@@ -146,21 +197,30 @@ int apply_relocate_add(Elf64_Shdr *sechd - 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 -urNp linux-3.0.4/arch/x86/kernel/paravirt.c linux-3.0.4/arch/x86/kernel/paravirt.c ---- linux-3.0.4/arch/x86/kernel/paravirt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/paravirt.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,9 @@ 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) - { -@@ -122,7 +125,7 @@ unsigned paravirt_patch_jmp(void *insnbu - * corresponding structure. */ - static void *get_call_destination(u8 type) - { -- struct paravirt_patch_template tmpl = { -+ const struct paravirt_patch_template tmpl = { - .pv_init_ops = pv_init_ops, - .pv_time_ops = pv_time_ops, - .pv_cpu_ops = pv_cpu_ops, -@@ -133,6 +136,9 @@ static void *get_call_destination(u8 typ - .pv_lock_ops = pv_lock_ops, - #endif - }; -+ -+ pax_track_stack(); -+ - return *((void **)&tmpl + type); - } - -@@ -145,15 +151,19 @@ unsigned paravirt_patch_default(u8 type, - 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) || -@@ -178,7 +188,7 @@ unsigned paravirt_patch_insns(void *insn - 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; - } -@@ -294,22 +304,22 @@ 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, - .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ - }; - --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, - }; - --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), -@@ -321,7 +331,7 @@ 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, -@@ -382,21 +392,26 @@ 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, -@@ -446,6 +461,7 @@ 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 */ - -@@ -465,6 +481,12 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c ---- linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c 2011-08-23 21:47:55.000000000 -0400 -@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t - 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 -urNp linux-3.0.4/arch/x86/kernel/pci-iommu_table.c linux-3.0.4/arch/x86/kernel/pci-iommu_table.c ---- linux-3.0.4/arch/x86/kernel/pci-iommu_table.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/pci-iommu_table.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2,7 +2,7 @@ - #include <asm/iommu_table.h> - #include <linux/string.h> - #include <linux/kallsyms.h> -- -+#include <linux/sched.h> - - #define DEBUG 1 - -@@ -51,6 +51,8 @@ void __init check_iommu_entries(struct i - { - struct iommu_table_entry *p, *q, *x; - -+ pax_track_stack(); -+ - /* Simple cyclic dependency checker. */ - for (p = start; p < finish; p++) { - q = find_dependents_of(start, finish, p); -diff -urNp linux-3.0.4/arch/x86/kernel/process_32.c linux-3.0.4/arch/x86/kernel/process_32.c ---- linux-3.0.4/arch/x86/kernel/process_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,7 @@ asmlinkage void ret_from_fork(void) __as - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - #ifndef CONFIG_SMP -@@ -126,15 +127,14 @@ void __show_regs(struct pt_regs *regs, i - 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(); - -@@ -196,13 +196,14 @@ int copy_thread(unsigned long clone_flag - 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; - -@@ -292,7 +293,7 @@ __switch_to(struct task_struct *prev_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; - bool preload_fpu; - - /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ -@@ -327,6 +328,10 @@ __switch_to(struct task_struct *prev_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. - */ -@@ -362,6 +367,9 @@ __switch_to(struct task_struct *prev_p, - */ - arch_end_context_switch(next_p); - -+ percpu_write(current_task, next_p); -+ percpu_write(current_tinfo, &next_p->tinfo); -+ - if (preload_fpu) - __math_state_restore(); - -@@ -371,8 +379,6 @@ __switch_to(struct task_struct *prev_p, - if (prev->gs | next->gs) - lazy_load_gs(next->gs); - -- percpu_write(current_task, next_p); -- - return prev_p; - } - -@@ -402,4 +408,3 @@ unsigned long get_wchan(struct task_stru - } while (count++ < 16); - return 0; - } -- -diff -urNp linux-3.0.4/arch/x86/kernel/process_64.c linux-3.0.4/arch/x86/kernel/process_64.c ---- linux-3.0.4/arch/x86/kernel/process_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -87,7 +87,7 @@ 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(); - } -@@ -260,8 +260,7 @@ int copy_thread(unsigned long clone_flag - 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; -@@ -273,6 +272,7 @@ int copy_thread(unsigned long clone_flag - 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); - -@@ -375,7 +375,7 @@ __switch_to(struct task_struct *prev_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; - bool preload_fpu; - -@@ -471,10 +471,9 @@ __switch_to(struct task_struct *prev_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 -@@ -536,12 +535,11 @@ unsigned long get_wchan(struct task_stru - 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 -urNp linux-3.0.4/arch/x86/kernel/process.c linux-3.0.4/arch/x86/kernel/process.c ---- linux-3.0.4/arch/x86/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process.c 2011-08-30 18:23:52.000000000 -0400 -@@ -48,16 +48,33 @@ void free_thread_xstate(struct task_stru - - void free_thread_info(struct thread_info *ti) - { -- free_thread_xstate(ti->task); - free_pages((unsigned long)ti, get_order(THREAD_SIZE)); - } - -+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); - } - - /* -@@ -70,7 +87,7 @@ 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); -@@ -106,7 +123,7 @@ 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); -@@ -120,6 +137,9 @@ 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)); - /* -@@ -282,10 +302,10 @@ int kernel_thread(int (*fn)(void *), voi - 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 -@@ -403,7 +423,7 @@ void default_idle(void) - EXPORT_SYMBOL(default_idle); - #endif - --void stop_this_cpu(void *dummy) -+__noreturn void stop_this_cpu(void *dummy) - { - local_irq_disable(); - /* -@@ -668,16 +688,37 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/ptrace.c linux-3.0.4/arch/x86/kernel/ptrace.c ---- linux-3.0.4/arch/x86/kernel/ptrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ptrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -821,7 +821,7 @@ long arch_ptrace(struct task_struct *chi - 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. */ -@@ -906,14 +906,14 @@ long arch_ptrace(struct task_struct *chi - 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 - -@@ -1330,7 +1330,7 @@ static void fill_sigtrap_info(struct tas - 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, -diff -urNp linux-3.0.4/arch/x86/kernel/pvclock.c linux-3.0.4/arch/x86/kernel/pvclock.c ---- linux-3.0.4/arch/x86/kernel/pvclock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/pvclock.c 2011-08-23 21:47:55.000000000 -0400 -@@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvc - 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 - * 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 -urNp linux-3.0.4/arch/x86/kernel/reboot.c linux-3.0.4/arch/x86/kernel/reboot.c ---- linux-3.0.4/arch/x86/kernel/reboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/reboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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; - -@@ -315,13 +315,17 @@ 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 -@@ -347,14 +351,14 @@ void machine_real_restart(unsigned int t - 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] = -@@ -365,7 +369,33 @@ void machine_real_restart(unsigned int t - 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); -@@ -523,7 +553,7 @@ void __attribute__((weak)) mach_reboot_f - * 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; -@@ -647,13 +677,13 @@ 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"); - -@@ -662,7 +692,7 @@ static void native_machine_restart(char - __machine_emergency_restart(0); - } - --static void native_machine_halt(void) -+static __noreturn void native_machine_halt(void) - { - /* stop other cpus and apics */ - machine_shutdown(); -@@ -673,7 +703,7 @@ 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) -@@ -682,6 +712,7 @@ static void native_machine_power_off(voi - } - /* a fallback in case there is no PM info available */ - tboot_shutdown(TB_SHUTDOWN_HALT); -+ unreachable(); - } - - struct machine_ops machine_ops = { -diff -urNp linux-3.0.4/arch/x86/kernel/setup.c linux-3.0.4/arch/x86/kernel/setup.c ---- linux-3.0.4/arch/x86/kernel/setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -650,7 +650,7 @@ 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); - } - -@@ -773,14 +773,14 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/setup_percpu.c linux-3.0.4/arch/x86/kernel/setup_percpu.c ---- linux-3.0.4/arch/x86/kernel/setup_percpu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/setup_percpu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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( - { - #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 -@@ -207,6 +205,11 @@ 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; -@@ -247,6 +250,12 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/signal.c linux-3.0.4/arch/x86/kernel/signal.c ---- linux-3.0.4/arch/x86/kernel/signal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/signal.c 2011-08-23 21:48:14.000000000 -0400 -@@ -198,7 +198,7 @@ static unsigned long align_sigframe(unsi - * 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 -@@ -249,11 +249,11 @@ get_sigframe(struct k_sigaction *ka, str - * 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; - } -@@ -308,9 +308,9 @@ __setup_frame(int sig, struct k_sigactio - } - - 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; - -@@ -324,7 +324,7 @@ __setup_frame(int sig, struct k_sigactio - * 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; -@@ -378,7 +378,10 @@ static int __setup_rt_frame(int sig, str - 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); -@@ -390,7 +393,7 @@ static int __setup_rt_frame(int sig, str - * 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) -@@ -769,6 +772,8 @@ static void do_signal(struct pt_regs *re - int signr; - sigset_t *oldset; - -+ pax_track_stack(); -+ - /* - * We want the common case to go fast, which is why we may in certain - * cases get here from kernel mode. Just return without doing anything -@@ -776,7 +781,7 @@ static void do_signal(struct pt_regs *re - * 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; - - if (current_thread_info()->status & TS_RESTORE_SIGMASK) -diff -urNp linux-3.0.4/arch/x86/kernel/smpboot.c linux-3.0.4/arch/x86/kernel/smpboot.c ---- linux-3.0.4/arch/x86/kernel/smpboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/smpboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -709,17 +709,20 @@ static int __cpuinit do_boot_cpu(int api - 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; - -@@ -861,6 +864,12 @@ int __cpuinit native_cpu_up(unsigned int - - 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 -urNp linux-3.0.4/arch/x86/kernel/step.c linux-3.0.4/arch/x86/kernel/step.c ---- linux-3.0.4/arch/x86/kernel/step.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/step.c 2011-08-23 21:47:55.000000000 -0400 -@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struc - 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(struc - 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 t - 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]) { -@@ -74,7 +78,7 @@ static int is_setting_trap_flag(struct t - - #ifdef CONFIG_X86_64 - case 0x40 ... 0x4f: -- if (regs->cs != __USER_CS) -+ if ((regs->cs & 0xffff) != __USER_CS) - /* 32-bit mode: register increment */ - return 0; - /* 64-bit mode: REX prefix */ -diff -urNp linux-3.0.4/arch/x86/kernel/syscall_table_32.S linux-3.0.4/arch/x86/kernel/syscall_table_32.S ---- linux-3.0.4/arch/x86/kernel/syscall_table_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/syscall_table_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -1,3 +1,4 @@ -+.section .rodata,"a",@progbits - ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit -diff -urNp linux-3.0.4/arch/x86/kernel/sys_i386_32.c linux-3.0.4/arch/x86/kernel/sys_i386_32.c ---- linux-3.0.4/arch/x86/kernel/sys_i386_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/sys_i386_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/sys_x86_64.c linux-3.0.4/arch/x86/kernel/sys_x86_64.c ---- linux-3.0.4/arch/x86/kernel/sys_x86_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/sys_x86_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -32,8 +32,8 @@ 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_IA32) && (flags & MAP_32BIT)) { - unsigned long new_begin; -@@ -52,7 +52,7 @@ static void find_start_end(unsigned long - *begin = new_begin; - } - } else { -- *begin = TASK_UNMAPPED_BASE; -+ *begin = mm->mmap_base; - *end = TASK_SIZE; - } - } -@@ -69,16 +69,19 @@ arch_get_unmapped_area(struct file *filp - 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_IA32)) -@@ -106,7 +109,7 @@ 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: - */ -@@ -128,7 +131,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -141,13 +144,18 @@ arch_get_unmapped_area_topdown(struct fi - if (!test_thread_flag(TIF_IA32) && (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 */ -@@ -162,7 +170,7 @@ arch_get_unmapped_area_topdown(struct fi - /* make sure it can fit in the remaining address space */ - if (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; - } -@@ -179,7 +187,7 @@ arch_get_unmapped_area_topdown(struct fi - * 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; - -@@ -188,8 +196,8 @@ arch_get_unmapped_area_topdown(struct fi - 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)); - - bottomup: - /* -@@ -198,13 +206,21 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/tboot.c linux-3.0.4/arch/x86/kernel/tboot.c ---- linux-3.0.4/arch/x86/kernel/tboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/tboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -217,7 +217,7 @@ static int tboot_setup_sleep(void) - - void tboot_shutdown(u32 shutdown_type) - { -- void (*shutdown)(void); -+ void (* __noreturn shutdown)(void); - - if (!tboot_enabled()) - return; -@@ -239,7 +239,7 @@ 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 */ -@@ -296,7 +296,7 @@ void tboot_sleep(u8 sleep_state, u32 pm1 - tboot_shutdown(acpi_shutdown_map[sleep_state]); - } - --static atomic_t ap_wfs_count; -+static atomic_unchecked_t ap_wfs_count; - - static int tboot_wait_for_aps(int num_aps) - { -@@ -320,9 +320,9 @@ static int __cpuinit tboot_cpu_callback( - { - 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; - } -@@ -341,7 +341,7 @@ 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); - return 0; - } -diff -urNp linux-3.0.4/arch/x86/kernel/time.c linux-3.0.4/arch/x86/kernel/time.c ---- linux-3.0.4/arch/x86/kernel/time.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/time.c 2011-08-23 21:47:55.000000000 -0400 -@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_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); -@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_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 -urNp linux-3.0.4/arch/x86/kernel/tls.c linux-3.0.4/arch/x86/kernel/tls.c ---- linux-3.0.4/arch/x86/kernel/tls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/tls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc - 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 -urNp linux-3.0.4/arch/x86/kernel/trampoline_32.S linux-3.0.4/arch/x86/kernel/trampoline_32.S ---- linux-3.0.4/arch/x86/kernel/trampoline_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/trampoline_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/trampoline_64.S linux-3.0.4/arch/x86/kernel/trampoline_64.S ---- linux-3.0.4/arch/x86/kernel/trampoline_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/trampoline_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/traps.c linux-3.0.4/arch/x86/kernel/traps.c ---- linux-3.0.4/arch/x86/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/traps.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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); -@@ -117,13 +111,13 @@ static inline void preempt_conditional_c - } - - 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. -@@ -134,7 +128,7 @@ do_trap(int trapnr, int signr, char *str - } - #endif - -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto kernel_trap; - - #ifdef CONFIG_X86_32 -@@ -157,7 +151,7 @@ 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"); -@@ -174,8 +168,20 @@ kernel_trap: - if (!fixup_exception(regs)) { - tsk->thread.error_code = error_code; - tsk->thread.trap_no = 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 -@@ -264,14 +270,30 @@ do_general_protection(struct pt_regs *re - 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_no = 13; - -@@ -304,6 +326,13 @@ gp_in_kernel: - if (notify_die(DIE_GPF, "general protection fault", regs, - error_code, 13, 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); - } - -@@ -433,6 +462,17 @@ static notrace __kprobes void default_do - 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_enter(); - - inc_irq_stat(__nmi_count); -@@ -569,7 +609,7 @@ dotraplinkage void __kprobes do_debug(st - /* 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, 1); - preempt_conditional_cli(regs); -@@ -583,7 +623,7 @@ dotraplinkage void __kprobes do_debug(st - * 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; -@@ -612,7 +652,7 @@ void math_error(struct pt_regs *regs, in - return; - conditional_sti(regs); - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - { - if (!fixup_exception(regs)) { - task->thread.error_code = error_code; -@@ -723,7 +763,7 @@ asmlinkage void __attribute__((weak)) sm - void __math_state_restore(void) - { - struct thread_info *thread = current_thread_info(); -- struct task_struct *tsk = thread->task; -+ struct task_struct *tsk = current; - - /* - * Paranoid restore. send a SIGSEGV if we fail to restore the state. -@@ -750,8 +790,7 @@ void __math_state_restore(void) - */ - asmlinkage void math_state_restore(void) - { -- struct thread_info *thread = current_thread_info(); -- struct task_struct *tsk = thread->task; -+ struct task_struct *tsk = current; - - if (!tsk_used_math(tsk)) { - local_irq_enable(); -diff -urNp linux-3.0.4/arch/x86/kernel/verify_cpu.S linux-3.0.4/arch/x86/kernel/verify_cpu.S ---- linux-3.0.4/arch/x86/kernel/verify_cpu.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/verify_cpu.S 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/vm86_32.c linux-3.0.4/arch/x86/kernel/vm86_32.c ---- linux-3.0.4/arch/x86/kernel/vm86_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vm86_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 ke - 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); -@@ -208,6 +209,13 @@ int sys_vm86old(struct vm86_struct __use - 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; -@@ -238,6 +246,14 @@ int sys_vm86(unsigned long cmd, unsigned - 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: -@@ -324,7 +340,7 @@ static void do_sys_vm86(struct kernel_vm - 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; -@@ -529,7 +545,7 @@ static void do_int(struct kernel_vm86_re - 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 -urNp linux-3.0.4/arch/x86/kernel/vmlinux.lds.S linux-3.0.4/arch/x86/kernel/vmlinux.lds.S ---- linux-3.0.4/arch/x86/kernel/vmlinux.lds.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vmlinux.lds.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 */ - -@@ -69,31 +76,46 @@ 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 - user PT_LOAD FLAGS(5); /* R_E */ -+#endif -+ 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); -@@ -109,13 +131,47 @@ SECTIONS - IRQENTRY_TEXT - *(.fixup) - *(.gnu.warning) -- /* End of text section */ -- _etext = .; - } :text = 0x9090 - -- NOTES :text :note -+ . += __KERNEL_TEXT_OFFSET; -+ -+#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) :text = 0x9090 -+ EXCEPTION_TABLE(16) :rodata - - #if defined(CONFIG_DEBUG_RODATA) - /* .text should occupy whole number of pages */ -@@ -127,16 +183,20 @@ 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) - -@@ -208,12 +268,19 @@ 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 -@@ -222,12 +289,27 @@ 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 -@@ -301,19 +383,12 @@ 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 - -@@ -332,16 +407,10 @@ 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) { -@@ -357,6 +426,7 @@ SECTIONS - __brk_base = .; - . += 64 * 1024; /* 64k alignment slop space */ - *(.brk_reservation) /* areas brk users have reserved */ -+ . = ALIGN(HPAGE_SIZE); - __brk_limit = .; - } - -@@ -383,13 +453,12 @@ 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 -urNp linux-3.0.4/arch/x86/kernel/vsyscall_64.c linux-3.0.4/arch/x86/kernel/vsyscall_64.c ---- linux-3.0.4/arch/x86/kernel/vsyscall_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vsyscall_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -53,7 +53,7 @@ DEFINE_VVAR(int, vgetcpu_mode); - DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data) = - { - .lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock), -- .sysctl_enabled = 1, -+ .sysctl_enabled = 0, - }; - - void update_vsyscall_tz(void) -@@ -231,7 +231,7 @@ static long __vsyscall(3) venosys_1(void - static ctl_table kernel_table2[] = { - { .procname = "vsyscall64", - .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), -- .mode = 0644, -+ .mode = 0444, - .proc_handler = proc_dointvec }, - {} - }; -diff -urNp linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c ---- linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/kernel/xsave.c linux-3.0.4/arch/x86/kernel/xsave.c ---- linux-3.0.4/arch/x86/kernel/xsave.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/xsave.c 2011-08-23 21:47:55.000000000 -0400 -@@ -130,7 +130,7 @@ int check_for_xstate(struct i387_fxsave_ - 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 __user *)buf); - } - - /* -@@ -299,7 +299,7 @@ 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 __user *) - buf); - if (unlikely(err)) { - /* -diff -urNp linux-3.0.4/arch/x86/kvm/emulate.c linux-3.0.4/arch/x86/kvm/emulate.c ---- linux-3.0.4/arch/x86/kvm/emulate.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/emulate.c 2011-08-23 21:47:55.000000000 -0400 -@@ -96,7 +96,7 @@ - #define Src2ImmByte (2<<29) - #define Src2One (3<<29) - #define Src2Imm (4<<29) --#define Src2Mask (7<<29) -+#define Src2Mask (7U<<29) - - #define X2(x...) x, x - #define X3(x...) X2(x), x -@@ -207,6 +207,7 @@ struct gprefix { - - #define ____emulate_2op(_op, _src, _dst, _eflags, _x, _y, _suffix, _dsttype) \ - do { \ -+ unsigned long _tmp; \ - __asm__ __volatile__ ( \ - _PRE_EFLAGS("0", "4", "2") \ - _op _suffix " %"_x"3,%1; " \ -@@ -220,8 +221,6 @@ struct gprefix { - /* Raw emulation: instruction has two explicit operands. */ - #define __emulate_2op_nobyte(_op,_src,_dst,_eflags,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ -- \ - switch ((_dst).bytes) { \ - case 2: \ - ____emulate_2op(_op,_src,_dst,_eflags,_wx,_wy,"w",u16);\ -@@ -237,7 +236,6 @@ struct gprefix { - - #define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ - switch ((_dst).bytes) { \ - case 1: \ - ____emulate_2op(_op,_src,_dst,_eflags,_bx,_by,"b",u8); \ -diff -urNp linux-3.0.4/arch/x86/kvm/lapic.c linux-3.0.4/arch/x86/kvm/lapic.c ---- linux-3.0.4/arch/x86/kvm/lapic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/lapic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -53,7 +53,7 @@ - #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 -urNp linux-3.0.4/arch/x86/kvm/mmu.c linux-3.0.4/arch/x86/kvm/mmu.c ---- linux-3.0.4/arch/x86/kvm/mmu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/mmu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3238,7 +3238,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * - - pgprintk("%s: gpa %llx bytes %d\n", __func__, gpa, bytes); - -- invlpg_counter = atomic_read(&vcpu->kvm->arch.invlpg_counter); -+ invlpg_counter = atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter); - - /* - * Assume that the pte write on a page table of the same type -@@ -3270,7 +3270,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * - } - - spin_lock(&vcpu->kvm->mmu_lock); -- if (atomic_read(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) -+ if (atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) - gentry = 0; - kvm_mmu_free_some_pages(vcpu); - ++vcpu->kvm->stat.mmu_pte_write; -diff -urNp linux-3.0.4/arch/x86/kvm/paging_tmpl.h linux-3.0.4/arch/x86/kvm/paging_tmpl.h ---- linux-3.0.4/arch/x86/kvm/paging_tmpl.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/paging_tmpl.h 2011-08-23 21:48:14.000000000 -0400 -@@ -583,6 +583,8 @@ static int FNAME(page_fault)(struct kvm_ - unsigned long mmu_seq; - bool map_writable; - -+ pax_track_stack(); -+ - pgprintk("%s: addr %lx err %x\n", __func__, addr, error_code); - - r = mmu_topup_memory_caches(vcpu); -@@ -703,7 +705,7 @@ static void FNAME(invlpg)(struct kvm_vcp - if (need_flush) - kvm_flush_remote_tlbs(vcpu->kvm); - -- atomic_inc(&vcpu->kvm->arch.invlpg_counter); -+ atomic_inc_unchecked(&vcpu->kvm->arch.invlpg_counter); - - spin_unlock(&vcpu->kvm->mmu_lock); - -diff -urNp linux-3.0.4/arch/x86/kvm/svm.c linux-3.0.4/arch/x86/kvm/svm.c ---- linux-3.0.4/arch/x86/kvm/svm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/svm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3377,7 +3377,11 @@ static void reload_tss(struct kvm_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(); - } - -@@ -3755,6 +3759,10 @@ static void svm_vcpu_run(struct kvm_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 -urNp linux-3.0.4/arch/x86/kvm/vmx.c linux-3.0.4/arch/x86/kvm/vmx.c ---- linux-3.0.4/arch/x86/kvm/vmx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/vmx.c 2011-08-23 21:47:55.000000000 -0400 -@@ -797,7 +797,11 @@ 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(); - } - -@@ -1747,8 +1751,11 @@ 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(); -@@ -2814,7 +2821,7 @@ static int vmx_vcpu_setup(struct vcpu_vm - vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); -- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */ - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); - vmcs_write64(VM_EXIT_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.host)); -@@ -4211,6 +4218,12 @@ static void __noclone vmx_vcpu_run(struc - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.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" -@@ -4259,6 +4272,11 @@ static void __noclone vmx_vcpu_run(struc - #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 -@@ -4276,7 +4294,16 @@ static void __noclone vmx_vcpu_run(struc - - vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD); - -- 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->launched = 1; - - vmx->exit_reason = vmcs_read32(VM_EXIT_REASON); -diff -urNp linux-3.0.4/arch/x86/kvm/x86.c linux-3.0.4/arch/x86/kvm/x86.c ---- linux-3.0.4/arch/x86/kvm/x86.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/x86.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2057,6 +2057,8 @@ long kvm_arch_dev_ioctl(struct file *fil - 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; -@@ -2229,15 +2231,20 @@ static int kvm_vcpu_ioctl_set_cpuid2(str - 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); -@@ -2252,15 +2259,19 @@ static int kvm_vcpu_ioctl_get_cpuid2(str - 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: -@@ -2579,7 +2590,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru - 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; -@@ -4878,7 +4889,7 @@ void kvm_after_handle_nmi(struct kvm_vcp - } - EXPORT_SYMBOL_GPL(kvm_after_handle_nmi); - --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 -urNp linux-3.0.4/arch/x86/lguest/boot.c linux-3.0.4/arch/x86/lguest/boot.c ---- linux-3.0.4/arch/x86/lguest/boot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lguest/boot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1176,9 +1176,10 @@ static __init int early_put_chars(u32 vt - * 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 -urNp linux-3.0.4/arch/x86/lib/atomic64_32.c linux-3.0.4/arch/x86/lib/atomic64_32.c ---- linux-3.0.4/arch/x86/lib/atomic64_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -8,18 +8,30 @@ - - long long atomic64_read_cx8(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_read_cx8); -+long long atomic64_read_unchecked_cx8(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_read_unchecked_cx8); - long long atomic64_set_cx8(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_set_cx8); -+long long atomic64_set_unchecked_cx8(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_set_unchecked_cx8); - long long atomic64_xchg_cx8(long long, unsigned high); - EXPORT_SYMBOL(atomic64_xchg_cx8); - long long atomic64_add_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_return_cx8); -+long long atomic64_add_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_return_unchecked_cx8); - long long atomic64_sub_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_return_cx8); -+long long atomic64_sub_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_return_unchecked_cx8); - long long atomic64_inc_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_return_cx8); -+long long atomic64_inc_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_return_unchecked_cx8); - long long atomic64_dec_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_return_cx8); -+long long atomic64_dec_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_return_unchecked_cx8); - long long atomic64_dec_if_positive_cx8(atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_if_positive_cx8); - int atomic64_inc_not_zero_cx8(atomic64_t *v); -@@ -30,26 +42,46 @@ EXPORT_SYMBOL(atomic64_add_unless_cx8); - #ifndef CONFIG_X86_CMPXCHG64 - long long atomic64_read_386(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_read_386); -+long long atomic64_read_unchecked_386(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_read_unchecked_386); - long long atomic64_set_386(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_set_386); -+long long atomic64_set_unchecked_386(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_set_unchecked_386); - long long atomic64_xchg_386(long long, unsigned high); - EXPORT_SYMBOL(atomic64_xchg_386); - long long atomic64_add_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_return_386); -+long long atomic64_add_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_return_unchecked_386); - long long atomic64_sub_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_return_386); -+long long atomic64_sub_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_return_unchecked_386); - long long atomic64_inc_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_return_386); -+long long atomic64_inc_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_return_unchecked_386); - long long atomic64_dec_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_return_386); -+long long atomic64_dec_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_return_unchecked_386); - long long atomic64_add_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_386); -+long long atomic64_add_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_unchecked_386); - long long atomic64_sub_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_386); -+long long atomic64_sub_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_unchecked_386); - long long atomic64_inc_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_386); -+long long atomic64_inc_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_unchecked_386); - long long atomic64_dec_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_386); -+long long atomic64_dec_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_unchecked_386); - long long atomic64_dec_if_positive_386(atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_if_positive_386); - int atomic64_inc_not_zero_386(atomic64_t *v); -diff -urNp linux-3.0.4/arch/x86/lib/atomic64_386_32.S linux-3.0.4/arch/x86/lib/atomic64_386_32.S ---- linux-3.0.4/arch/x86/lib/atomic64_386_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_386_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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, %esi - 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 -urNp linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S ---- linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S 2011-09-17 18:31:51.000000000 -0400 -@@ -35,10 +35,24 @@ ENTRY(atomic64_read_cx8) - CFI_STARTPROC - - read64 %ecx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(atomic64_read_cx8) - -+ENTRY(atomic64_read_unchecked_cx8) -+ CFI_STARTPROC -+ -+ read64 %ecx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_read_unchecked_cx8) -+ - ENTRY(atomic64_set_cx8) - CFI_STARTPROC - -@@ -48,10 +62,29 @@ ENTRY(atomic64_set_cx8) - cmpxchg8b (%esi) - jne 1b - -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - 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 -+ -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_set_unchecked_cx8) -+ - ENTRY(atomic64_xchg_cx8) - CFI_STARTPROC - -@@ -62,12 +95,15 @@ ENTRY(atomic64_xchg_cx8) - cmpxchg8b (%esi) - jne 1b - -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - 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 -@@ -84,27 +120,46 @@ 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 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - 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 - -@@ -114,21 +169,41 @@ 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 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - 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 -@@ -140,6 +215,13 @@ 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) -@@ -149,6 +231,9 @@ ENTRY(atomic64_dec_if_positive_cx8) - movl %ebx, %eax - movl %ecx, %edx - RESTORE ebx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(atomic64_dec_if_positive_cx8) -@@ -174,6 +259,13 @@ ENTRY(atomic64_add_unless_cx8) - movl %edx, %ecx - addl %esi, %ebx - adcl %edi, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%ebp) - jne 1b -@@ -184,6 +276,9 @@ ENTRY(atomic64_add_unless_cx8) - CFI_ADJUST_CFA_OFFSET -8 - RESTORE ebx - RESTORE ebp -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - 4: - cmpl %edx, 4(%esp) -@@ -206,6 +301,13 @@ ENTRY(atomic64_inc_not_zero_cx8) - movl %edx, %ecx - addl $1, %ebx - adcl $0, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b -@@ -213,6 +315,9 @@ ENTRY(atomic64_inc_not_zero_cx8) - movl $1, %eax - 3: - RESTORE ebx -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - 4: - testl %edx, %edx -diff -urNp linux-3.0.4/arch/x86/lib/checksum_32.S linux-3.0.4/arch/x86/lib/checksum_32.S ---- linux-3.0.4/arch/x86/lib/checksum_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/checksum_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 ( - - #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 -urNp linux-3.0.4/arch/x86/lib/clear_page_64.S linux-3.0.4/arch/x86/lib/clear_page_64.S ---- linux-3.0.4/arch/x86/lib/clear_page_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/clear_page_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -11,6 +11,9 @@ ENTRY(clear_page_c) - movl $4096/8,%ecx - xorl %eax,%eax - rep stosq -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(clear_page_c) -@@ -20,6 +23,9 @@ ENTRY(clear_page_c_e) - movl $4096,%ecx - xorl %eax,%eax - rep stosb -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(clear_page_c_e) -@@ -43,6 +49,9 @@ ENTRY(clear_page) - leaq 64(%rdi),%rdi - jnz .Lloop - nop -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - .Lclear_page_end: -@@ -58,7 +67,7 @@ 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 -urNp linux-3.0.4/arch/x86/lib/copy_page_64.S linux-3.0.4/arch/x86/lib/copy_page_64.S ---- linux-3.0.4/arch/x86/lib/copy_page_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_page_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -8,6 +8,9 @@ copy_page_c: - CFI_STARTPROC - movl $4096/8,%ecx - rep movsq -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(copy_page_c) -@@ -94,6 +97,9 @@ ENTRY(copy_page) - CFI_RESTORE r13 - addq $3*8,%rsp - CFI_ADJUST_CFA_OFFSET -3*8 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - .Lcopy_page_end: - CFI_ENDPROC -@@ -104,7 +110,7 @@ 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 -urNp linux-3.0.4/arch/x86/lib/copy_user_64.S linux-3.0.4/arch/x86/lib/copy_user_64.S ---- linux-3.0.4/arch/x86/lib/copy_user_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_user_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -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 +72,22 @@ - #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 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(bad_from_user) -@@ -179,6 +155,9 @@ ENTRY(copy_user_generic_unrolled) - decl %ecx - jnz 21b - 23: xor %eax,%eax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - .section .fixup,"ax" -@@ -251,6 +230,9 @@ ENTRY(copy_user_generic_string) - 3: rep - movsb - 4: xorl %eax,%eax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - .section .fixup,"ax" -@@ -287,6 +269,9 @@ ENTRY(copy_user_enhanced_fast_string) - 1: rep - movsb - 2: xorl %eax,%eax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - .section .fixup,"ax" -diff -urNp linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S ---- linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -14,6 +14,7 @@ - #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 +51,15 @@ - */ - 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 -@@ -98,6 +108,9 @@ ENTRY(__copy_user_nocache) - jnz 21b - 23: xorl %eax,%eax - sfence -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - .section .fixup,"ax" -diff -urNp linux-3.0.4/arch/x86/lib/csum-copy_64.S linux-3.0.4/arch/x86/lib/csum-copy_64.S ---- linux-3.0.4/arch/x86/lib/csum-copy_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/csum-copy_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -228,6 +228,9 @@ ENTRY(csum_partial_copy_generic) - CFI_RESTORE rbp - addq $7*8, %rsp - CFI_ADJUST_CFA_OFFSET -7*8 -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_RESTORE_STATE - -diff -urNp linux-3.0.4/arch/x86/lib/csum-wrappers_64.c linux-3.0.4/arch/x86/lib/csum-wrappers_64.c ---- linux-3.0.4/arch/x86/lib/csum-wrappers_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/csum-wrappers_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -52,6 +52,12 @@ csum_partial_copy_from_user(const void _ - len -= 2; - } - } -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ - isum = csum_partial_copy_generic((__force const void *)src, - dst, len, isum, errp, NULL); - if (unlikely(*errp)) -@@ -105,6 +111,12 @@ csum_partial_copy_to_user(const void *sr - } - - *errp = 0; -+ -+#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 *)dst, - len, isum, NULL, errp); - } -diff -urNp linux-3.0.4/arch/x86/lib/getuser.S linux-3.0.4/arch/x86/lib/getuser.S ---- linux-3.0.4/arch/x86/lib/getuser.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/getuser.S 2011-08-23 21:47:55.000000000 -0400 -@@ -33,14 +33,35 @@ - #include <asm/asm-offsets.h> - #include <asm/thread_info.h> - #include <asm/asm.h> -+#include <asm/segment.h> -+#include <asm/pgtable.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 - ret - CFI_ENDPROC -@@ -49,11 +70,24 @@ 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 - ret - CFI_ENDPROC -@@ -62,11 +96,24 @@ 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 - ret - CFI_ENDPROC -@@ -80,6 +127,15 @@ 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 - ret -diff -urNp linux-3.0.4/arch/x86/lib/insn.c linux-3.0.4/arch/x86/lib/insn.c ---- linux-3.0.4/arch/x86/lib/insn.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/insn.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - - #define get_next(t, insn) \ - ({t r; r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; }) -@@ -40,8 +45,8 @@ - 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 -urNp linux-3.0.4/arch/x86/lib/iomap_copy_64.S linux-3.0.4/arch/x86/lib/iomap_copy_64.S ---- linux-3.0.4/arch/x86/lib/iomap_copy_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/iomap_copy_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -25,6 +25,9 @@ ENTRY(__iowrite32_copy) - CFI_STARTPROC - movl %edx,%ecx - rep movsd -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(__iowrite32_copy) -diff -urNp linux-3.0.4/arch/x86/lib/memcpy_64.S linux-3.0.4/arch/x86/lib/memcpy_64.S ---- linux-3.0.4/arch/x86/lib/memcpy_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/memcpy_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -34,6 +34,9 @@ - rep movsq - movl %edx, %ecx - rep movsb -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - .Lmemcpy_e: - .previous -@@ -51,6 +54,9 @@ - - movl %edx, %ecx - rep movsb -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - .Lmemcpy_e_e: - .previous -@@ -141,6 +147,9 @@ ENTRY(memcpy) - movq %r9, 1*8(%rdi) - movq %r10, -2*8(%rdi, %rdx) - movq %r11, -1*8(%rdi, %rdx) -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - .p2align 4 - .Lless_16bytes: -@@ -153,6 +162,9 @@ ENTRY(memcpy) - movq -1*8(%rsi, %rdx), %r9 - movq %r8, 0*8(%rdi) - movq %r9, -1*8(%rdi, %rdx) -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - .p2align 4 - .Lless_8bytes: -@@ -166,6 +178,9 @@ ENTRY(memcpy) - movl -4(%rsi, %rdx), %r8d - movl %ecx, (%rdi) - movl %r8d, -4(%rdi, %rdx) -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - .p2align 4 - .Lless_3bytes: -@@ -183,6 +198,9 @@ ENTRY(memcpy) - jnz .Lloop_1 - - .Lend: -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - CFI_ENDPROC - ENDPROC(memcpy) -diff -urNp linux-3.0.4/arch/x86/lib/memmove_64.S linux-3.0.4/arch/x86/lib/memmove_64.S ---- linux-3.0.4/arch/x86/lib/memmove_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/memmove_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -201,6 +201,9 @@ ENTRY(memmove) - movb (%rsi), %r11b - movb %r11b, (%rdi) - 13: -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - CFI_ENDPROC - -@@ -209,6 +212,9 @@ ENTRY(memmove) - /* Forward moving data. */ - movq %rdx, %rcx - rep movsb -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - retq - .Lmemmove_end_forward_efs: - .previous -diff -urNp linux-3.0.4/arch/x86/lib/memset_64.S linux-3.0.4/arch/x86/lib/memset_64.S ---- linux-3.0.4/arch/x86/lib/memset_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/memset_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -31,6 +31,9 @@ - movl %r8d,%ecx - rep stosb - movq %r9,%rax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - .Lmemset_e: - .previous -@@ -53,6 +56,9 @@ - movl %edx,%ecx - rep stosb - movq %r9,%rax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - .Lmemset_e_e: - .previous -@@ -121,6 +127,9 @@ ENTRY(__memset) - - .Lende: - movq %r10,%rax -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - - CFI_RESTORE_STATE -diff -urNp linux-3.0.4/arch/x86/lib/mmx_32.c linux-3.0.4/arch/x86/lib/mmx_32.c ---- linux-3.0.4/arch/x86/lib/mmx_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/mmx_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void * - { - 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 * - 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, voi - * 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 -urNp linux-3.0.4/arch/x86/lib/putuser.S linux-3.0.4/arch/x86/lib/putuser.S ---- linux-3.0.4/arch/x86/lib/putuser.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/putuser.S 2011-08-23 21:47:55.000000000 -0400 -@@ -15,7 +15,8 @@ - #include <asm/thread_info.h> - #include <asm/errno.h> - #include <asm/asm.h> -- -+#include <asm/segment.h> -+#include <asm/pgtable.h> - - /* - * __put_user_X -@@ -29,52 +30,119 @@ - * as they get called from within inline assembly. - */ - --#define ENTER CFI_STARTPROC ; \ -- GET_THREAD_INFO(%_ASM_BX) -+#define ENTER CFI_STARTPROC - #define EXIT 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 -urNp linux-3.0.4/arch/x86/lib/rwlock_64.S linux-3.0.4/arch/x86/lib/rwlock_64.S ---- linux-3.0.4/arch/x86/lib/rwlock_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/rwlock_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -17,6 +17,9 @@ ENTRY(__write_lock_failed) - LOCK_PREFIX - subl $RW_LOCK_BIAS,(%rdi) - jnz __write_lock_failed -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - END(__write_lock_failed) -@@ -33,6 +36,9 @@ ENTRY(__read_lock_failed) - LOCK_PREFIX - decl (%rdi) - js __read_lock_failed -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - END(__read_lock_failed) -diff -urNp linux-3.0.4/arch/x86/lib/rwsem_64.S linux-3.0.4/arch/x86/lib/rwsem_64.S ---- linux-3.0.4/arch/x86/lib/rwsem_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/rwsem_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -51,6 +51,9 @@ ENTRY(call_rwsem_down_read_failed) - popq_cfi %rdx - CFI_RESTORE rdx - restore_common_regs -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(call_rwsem_down_read_failed) -@@ -61,6 +64,9 @@ ENTRY(call_rwsem_down_write_failed) - movq %rax,%rdi - call rwsem_down_write_failed - restore_common_regs -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(call_rwsem_down_write_failed) -@@ -73,6 +79,9 @@ ENTRY(call_rwsem_wake) - movq %rax,%rdi - call rwsem_wake - restore_common_regs -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - 1: ret - CFI_ENDPROC - ENDPROC(call_rwsem_wake) -@@ -88,6 +97,9 @@ ENTRY(call_rwsem_downgrade_wake) - popq_cfi %rdx - CFI_RESTORE rdx - restore_common_regs -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC - ENDPROC(call_rwsem_downgrade_wake) -diff -urNp linux-3.0.4/arch/x86/lib/thunk_64.S linux-3.0.4/arch/x86/lib/thunk_64.S ---- linux-3.0.4/arch/x86/lib/thunk_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/thunk_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -50,5 +50,8 @@ - SAVE_ARGS - restore: - RESTORE_ARGS -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - CFI_ENDPROC -diff -urNp linux-3.0.4/arch/x86/lib/usercopy_32.c linux-3.0.4/arch/x86/lib/usercopy_32.c ---- linux-3.0.4/arch/x86/lib/usercopy_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/usercopy_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,7 +43,7 @@ do { \ - __asm__ __volatile__( \ - " testl %1,%1\n" \ - " jz 2f\n" \ -- "0: lodsb\n" \ -+ "0: "__copyuser_seg"lodsb\n" \ - " stosb\n" \ - " testb %%al,%%al\n" \ - " jz 1f\n" \ -@@ -128,10 +128,12 @@ 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" \ -@@ -200,6 +202,7 @@ long strnlen_user(const char __user *s, - might_fault(); - - __asm__ __volatile__( -+ __COPYUSER_SET_ES - " testl %0, %0\n" - " jz 3f\n" - " andl %0,%%ecx\n" -@@ -208,6 +211,7 @@ long strnlen_user(const char __user *s, - " 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" -@@ -227,7 +231,7 @@ 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__( -@@ -239,36 +243,36 @@ __copy_user_intel(void __user *to, const - " .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" -@@ -278,10 +282,119 @@ __copy_user_intel(void __user *to, const - " 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" -+ ".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 -+__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" -@@ -339,41 +452,41 @@ __copy_user_zeroing_intel(void *to, cons - 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" -@@ -385,9 +498,9 @@ __copy_user_zeroing_intel(void *to, cons - " 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" -@@ -440,41 +553,41 @@ static unsigned long __copy_user_zeroing - - __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" -@@ -487,9 +600,9 @@ static unsigned long __copy_user_zeroing - " 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" -@@ -537,41 +650,41 @@ static unsigned long __copy_user_intel_n - - __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" -@@ -584,9 +697,9 @@ static unsigned long __copy_user_intel_n - " 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" -@@ -629,32 +742,36 @@ static unsigned long __copy_user_intel_n - */ - 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" \ -@@ -682,14 +799,14 @@ 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" \ -@@ -775,9 +892,9 @@ 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); -@@ -797,10 +914,9 @@ unsigned long __copy_from_user_ll_nozero - 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); -@@ -827,65 +943,50 @@ unsigned long __copy_from_user_ll_nocach - 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) -+void copy_from_user_overflow(void) - { -- if (access_ok(VERIFY_WRITE, to, n)) -- n = __copy_to_user(to, from, n); -- return n; -+ WARN(1, "Buffer overflow detected!\n"); - } --EXPORT_SYMBOL(copy_to_user); -+EXPORT_SYMBOL(copy_from_user_overflow); - --/** -- * 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) -+void copy_to_user_overflow(void) - { -- if (access_ok(VERIFY_READ, from, n)) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; -+ WARN(1, "Buffer overflow detected!\n"); - } --EXPORT_SYMBOL(_copy_from_user); -+EXPORT_SYMBOL(copy_to_user_overflow); - --void copy_from_user_overflow(void) -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x) - { -- WARN(1, "Buffer overflow detected!\n"); -+ 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(copy_from_user_overflow); -+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 -urNp linux-3.0.4/arch/x86/lib/usercopy_64.c linux-3.0.4/arch/x86/lib/usercopy_64.c ---- linux-3.0.4/arch/x86/lib/usercopy_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/usercopy_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,6 +42,12 @@ long - __strncpy_from_user(char *dst, const char __user *src, long count) - { - long res; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ - __do_strncpy_from_user(dst, src, count, res); - return res; - } -@@ -65,6 +71,12 @@ unsigned long __clear_user(void __user * - { - 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( -@@ -151,10 +163,18 @@ EXPORT_SYMBOL(strlen_user); - - unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len) - { -- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, 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((__force void *)to, (__force void *)from, len); -- } -- return len; -+ } -+ return len; - } - EXPORT_SYMBOL(copy_in_user); - -diff -urNp linux-3.0.4/arch/x86/Makefile linux-3.0.4/arch/x86/Makefile ---- linux-3.0.4/arch/x86/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Makefile 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,7 @@ ifeq ($(CONFIG_X86_32),y) - else - BITS := 64 - UTS_MACHINE := x86_64 -+ biarch := $(call cc-option,-m64) - CHECKFLAGS += -D__x86_64__ -m64 - - KBUILD_AFLAGS += -m64 -@@ -195,3 +196,12 @@ 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 -urNp linux-3.0.4/arch/x86/mm/extable.c linux-3.0.4/arch/x86/mm/extable.c ---- linux-3.0.4/arch/x86/mm/extable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/extable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/mm/fault.c linux-3.0.4/arch/x86/mm/fault.c ---- linux-3.0.4/arch/x86/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/fault.c 2011-08-23 21:48:14.000000000 -0400 -@@ -13,10 +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/vsyscall.h> -+#include <asm/tlbflush.h> -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#include <asm/stacktrace.h> -+#endif - - /* - * Page fault error code bits: -@@ -54,7 +62,7 @@ static inline int __kprobes notify_page_ - 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; -@@ -115,7 +123,10 @@ check_prefetch_opcode(struct pt_regs *re - 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, (__force unsigned char __user *)(instr), 1)) -+ return 0; -+ } else if (probe_kernel_address(instr, opcode)) - return 0; - - *prefetch = (instr_lo == 0xF) && -@@ -149,7 +160,10 @@ is_prefetch(struct pt_regs *regs, unsign - while (instr < max_instr) { - unsigned char opcode; - -- if (probe_kernel_address(instr, opcode)) -+ if (user_mode(regs)) { -+ if (__copy_from_user_inatomic(&opcode, (__force unsigned char __user *)(instr), 1)) -+ break; -+ } else if (probe_kernel_address(instr, opcode)) - break; - - instr++; -@@ -180,6 +194,30 @@ force_sig_info_fault(int si_signo, int s - force_sig_info(si_signo, &info, tsk); - } - -+#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); - -@@ -230,10 +268,22 @@ 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_CPUS; ++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; - -@@ -241,8 +291,13 @@ 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; -@@ -276,6 +331,11 @@ static noinline __kprobes int vmalloc_fa - * 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; -@@ -371,7 +431,14 @@ static noinline __kprobes int vmalloc_fa - * 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; -@@ -533,7 +600,7 @@ static int is_errata93(struct pt_regs *r - 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; -@@ -560,7 +627,7 @@ static int is_f00f_bug(struct pt_regs *r - } - - 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, -@@ -569,14 +636,25 @@ show_fault_oops(struct pt_regs *regs, un - 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) -@@ -702,6 +780,66 @@ __bad_area_nosemaphore(struct pt_regs *r - unsigned long address, int si_code) - { - struct task_struct *tsk = current; -+#if defined(CONFIG_X86_64) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ struct mm_struct *mm = tsk->mm; -+#endif -+ -+#ifdef CONFIG_X86_64 -+ if (mm && (error_code & PF_INSTR) && mm->context.vdso) { -+ if (regs->ip == VSYSCALL_ADDR(__NR_vgettimeofday) || -+ regs->ip == VSYSCALL_ADDR(__NR_vtime) || -+ regs->ip == VSYSCALL_ADDR(__NR_vgetcpu)) { -+ regs->ip += mm->context.vdso - PAGE_SIZE - VSYSCALL_START; -+ return; -+ } -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm && (error_code & PF_USER)) { -+ unsigned long ip = regs->ip; -+ -+ if (v8086_mode(regs)) -+ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff); -+ -+ /* -+ * It's possible to have interrupts off here: -+ */ -+ local_irq_enable(); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && -+ (((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && ip == address))) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address)) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+ } -+#endif - - /* User mode accesses just cause a SIGSEGV */ - if (error_code & PF_USER) { -@@ -871,6 +1009,99 @@ static int spurious_fault_check(unsigned - 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. - * -@@ -943,6 +1174,9 @@ 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))) -@@ -976,19 +1210,33 @@ do_page_fault(struct pt_regs *regs, unsi - { - 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); - -+ /* Get the faulting address: */ -+ 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)) { -+ 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: %pA\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; - -- /* Get the faulting address: */ -- address = read_cr2(); -- - /* - * Detect and handle instructions that would cause a page fault for - * both a tracked kernel page and a userspace page. -@@ -1048,7 +1296,7 @@ do_page_fault(struct pt_regs *regs, unsi - * 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 { -@@ -1103,6 +1351,11 @@ 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); -@@ -1114,18 +1367,24 @@ 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; -@@ -1180,3 +1439,199 @@ good_area: - - up_read(&mm->mmap_sem); - } -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault_32(struct pt_regs *regs) -+{ -+ int err; -+ -+ 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: 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(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-%lu: ", (unsigned long)sizeof(long)); -+ for (i = -1; i < 80 / (long)sizeof(long); i++) { -+ unsigned long c; -+ if (get_user(c, (__force unsigned long __user *)sp+i)) -+#ifdef CONFIG_X86_32 -+ printk(KERN_CONT "???????? "); -+#else -+ printk(KERN_CONT "???????????????? "); -+#endif -+ else -+ 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((__force void __user *)dst, src, size); -+ pax_close_kernel(); -+ pagefault_enable(); -+ set_fs(old_fs); -+ -+ return ret ? -EFAULT : 0; -+} -diff -urNp linux-3.0.4/arch/x86/mm/gup.c linux-3.0.4/arch/x86/mm/gup.c ---- linux-3.0.4/arch/x86/mm/gup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/gup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -263,7 +263,7 @@ int __get_user_pages_fast(unsigned long - 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 -urNp linux-3.0.4/arch/x86/mm/highmem_32.c linux-3.0.4/arch/x86/mm/highmem_32.c ---- linux-3.0.4/arch/x86/mm/highmem_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/highmem_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,10 @@ void *kmap_atomic_prot(struct page *page - 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(); - - return (void *)vaddr; - } -diff -urNp linux-3.0.4/arch/x86/mm/hugetlbpage.c linux-3.0.4/arch/x86/mm/hugetlbpage.c ---- linux-3.0.4/arch/x86/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmappe - 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, -@@ -308,10 +316,9 @@ static unsigned long hugetlb_get_unmappe - { - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; -- struct vm_area_struct *vma, *prev_vma; -- unsigned long base = mm->mmap_base, addr = addr0; -+ struct vm_area_struct *vma; -+ unsigned long base = mm->mmap_base, addr; - unsigned long largest_hole = mm->cached_hole_size; -- int first_time = 1; - - /* don't allow allocations above current base */ - if (mm->free_area_cache > base) -@@ -321,64 +328,63 @@ static unsigned long hugetlb_get_unmappe - largest_hole = 0; - mm->free_area_cache = base; - } --try_again: -+ - /* 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); -+ vma = find_vma(mm, addr); - /* - * Lookup failure means no vma is above this address, - * i.e. return with success: -- */ -- if (!(vma = find_vma_prev(mm, addr, &prev_vma))) -- return addr; -- -- /* - * new region fits between prev_vma->vm_end and - * vma->vm_start, use it: - */ -- if (addr + len <= vma->vm_start && -- (!prev_vma || (addr >= prev_vma->vm_end))) { -+ 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); -- } else { -- /* pull free_area_cache down to the first hole */ -- if (mm->free_area_cache == vma->vm_end) { -- mm->free_area_cache = vma->vm_start; -- mm->cached_hole_size = largest_hole; -- } -+ mm->cached_hole_size = largest_hole; -+ return (mm->free_area_cache = addr); -+ } -+ /* pull free_area_cache down to the first hole */ -+ if (mm->free_area_cache == vma->vm_end) { -+ mm->free_area_cache = vma->vm_start; -+ mm->cached_hole_size = largest_hole; - } - - /* 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 (first_time) { -- mm->free_area_cache = base; -- largest_hole = 0; -- first_time = 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); -@@ -386,6 +392,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -399,10 +406,19 @@ hugetlb_get_unmapped_area(struct file *f - 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) { -@@ -414,8 +430,7 @@ hugetlb_get_unmapped_area(struct file *f - 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 -urNp linux-3.0.4/arch/x86/mm/init_32.c linux-3.0.4/arch/x86/mm/init_32.c ---- linux-3.0.4/arch/x86/mm/init_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -74,36 +74,6 @@ 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: - */ -@@ -123,13 +93,28 @@ static pte_t * __init one_page_table_ini - 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); -@@ -203,6 +188,7 @@ page_table_range_init(unsigned long star - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte = NULL; - -@@ -212,8 +198,13 @@ page_table_range_init(unsigned long star - 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), -@@ -225,11 +216,20 @@ page_table_range_init(unsigned long star - } - } - --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; - } - - /* -@@ -246,9 +246,10 @@ kernel_physical_mapping_init(unsigned lo - 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; -@@ -281,8 +282,13 @@ 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; -@@ -294,14 +300,13 @@ 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 -@@ -311,11 +316,7 @@ 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++; -@@ -332,7 +333,7 @@ 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 -@@ -340,7 +341,7 @@ 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++; -@@ -472,7 +473,7 @@ void __init native_pagetable_setup_start - - 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); -@@ -524,12 +525,10 @@ void __init early_ioremap_page_table_ran - - 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 */ -@@ -757,6 +756,12 @@ 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 -@@ -774,7 +779,7 @@ void __init mem_init(void) - set_highmem_pages_init(); - - 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, " -@@ -815,10 +820,10 @@ 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); - - /* -@@ -896,6 +901,7 @@ 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); - -@@ -910,6 +916,7 @@ 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); - -@@ -938,6 +945,7 @@ 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 -urNp linux-3.0.4/arch/x86/mm/init_64.c linux-3.0.4/arch/x86/mm/init_64.c ---- linux-3.0.4/arch/x86/mm/init_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -75,7 +75,7 @@ early_param("gbpages", parse_direct_gbpa - * 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; -@@ -108,12 +108,22 @@ void sync_global_pgds(unsigned long star - - 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_CPUS; ++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; -@@ -122,6 +132,7 @@ void sync_global_pgds(unsigned long star - /* 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); -@@ -129,7 +140,10 @@ void sync_global_pgds(unsigned long star - 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); - } -@@ -203,7 +217,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, - 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. -@@ -262,14 +278,12 @@ static void __init __init_extra_mapping( - 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)); -@@ -693,6 +707,12 @@ 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; -@@ -853,8 +873,8 @@ 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) -@@ -888,7 +908,7 @@ int in_gate_area_no_mm(unsigned long add - - 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 -urNp linux-3.0.4/arch/x86/mm/init.c linux-3.0.4/arch/x86/mm/init.c ---- linux-3.0.4/arch/x86/mm/init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init.c 2011-08-23 21:48:14.000000000 -0400 -@@ -31,7 +31,7 @@ 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; -@@ -313,12 +313,34 @@ unsigned long __init_refok init_memory_m - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+#ifdef CONFIG_GRKERNSEC_KMEM -+ /* allow BDA */ -+ if (!pagenr) -+ return 1; -+ /* allow EBDA */ -+ if ((0x9f000 >> PAGE_SHIFT) == pagenr) -+ 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 0; -+#endif - if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) - return 0; - if (!page_is_ram(pagenr)) - return 1; -+ - return 0; - } - -@@ -373,6 +395,86 @@ void free_init_pages(char *what, unsigne - - 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; -+ -+ 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_CPUS; 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 -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ unsigned long addr, end; -+ -+ /* 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 -urNp linux-3.0.4/arch/x86/mm/iomap_32.c linux-3.0.4/arch/x86/mm/iomap_32.c ---- linux-3.0.4/arch/x86/mm/iomap_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/iomap_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long - 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 -urNp linux-3.0.4/arch/x86/mm/ioremap.c linux-3.0.4/arch/x86/mm/ioremap.c ---- linux-3.0.4/arch/x86/mm/ioremap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/ioremap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(re - 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); - } -@@ -344,7 +344,7 @@ static int __init early_ioremap_debug_se - 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 +381,7 @@ 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 -urNp linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c ---- linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c 2011-08-23 21:47:55.000000000 -0400 -@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *reg - * 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 -urNp linux-3.0.4/arch/x86/mm/mmap.c linux-3.0.4/arch/x86/mm/mmap.c ---- linux-3.0.4/arch/x86/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -49,7 +49,7 @@ static unsigned int stack_maxrandom_size - * 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) - - /* - * True on X86_32 or when emulating IA32 on X86_64 -@@ -94,27 +94,40 @@ 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(); - } - -@@ -125,11 +138,23 @@ static unsigned long mmap_legacy_base(vo - 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 -urNp linux-3.0.4/arch/x86/mm/mmio-mod.c linux-3.0.4/arch/x86/mm/mmio-mod.c ---- linux-3.0.4/arch/x86/mm/mmio-mod.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/mmio-mod.c 2011-08-23 21:47:55.000000000 -0400 -@@ -195,7 +195,7 @@ static void pre(struct kmmio_probe *p, s - 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 | -@@ -235,7 +235,7 @@ static void post(struct kmmio_probe *p, - 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 = { -@@ -259,7 +259,7 @@ static void ioremap_trace_core(resource_ - .private = trace - }, - .phys = offset, -- .id = atomic_inc_return(&next_id) -+ .id = atomic_inc_return_unchecked(&next_id) - }; - map.map_id = trace->id; - -diff -urNp linux-3.0.4/arch/x86/mm/pageattr.c linux-3.0.4/arch/x86/mm/pageattr.c ---- linux-3.0.4/arch/x86/mm/pageattr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pageattr.c 2011-08-23 21:47:55.000000000 -0400 -@@ -261,7 +261,7 @@ static inline pgprot_t static_protection - */ - #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_protection - * 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_protection - 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_protection - } - #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_CPUS; ++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 -urNp linux-3.0.4/arch/x86/mm/pageattr-test.c linux-3.0.4/arch/x86/mm/pageattr-test.c ---- linux-3.0.4/arch/x86/mm/pageattr-test.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pageattr-test.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/mm/pat.c linux-3.0.4/arch/x86/mm/pat.c ---- linux-3.0.4/arch/x86/mm/pat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pat.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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(unsig - 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, un - 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, - 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, - 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 -urNp linux-3.0.4/arch/x86/mm/pf_in.c linux-3.0.4/arch/x86/mm/pf_in.c ---- linux-3.0.4/arch/x86/mm/pf_in.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pf_in.c 2011-08-23 21:47:55.000000000 -0400 -@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned l - 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(un - 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 - 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 l - 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 l - 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 -urNp linux-3.0.4/arch/x86/mm/pgtable_32.c linux-3.0.4/arch/x86/mm/pgtable_32.c ---- linux-3.0.4/arch/x86/mm/pgtable_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pgtable_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,10 +48,13 @@ void set_pte_vaddr(unsigned long vaddr, - 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 -urNp linux-3.0.4/arch/x86/mm/pgtable.c linux-3.0.4/arch/x86/mm/pgtable.c ---- linux-3.0.4/arch/x86/mm/pgtable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pgtable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -84,10 +84,52 @@ static inline void pgd_list_del(pgd_t *p - 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, int count) -+{ -+ 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, int count) -+{ -+ while (count--) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ *dst++ = __pgd(pgd_val(*src++) & clone_pgd_mask); -+#else -+ *dst++ = *src++; -+#endif - -+} -+#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 +170,7 @@ 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 +183,7 @@ 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 +195,7 @@ 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 +213,38 @@ void pud_populate(struct mm_struct *mm, - */ - 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 +257,55 @@ 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 +314,11 @@ 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 +328,14 @@ 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 +344,7 @@ 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 -urNp linux-3.0.4/arch/x86/mm/setup_nx.c linux-3.0.4/arch/x86/mm/setup_nx.c ---- linux-3.0.4/arch/x86/mm/setup_nx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/setup_nx.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/mm/tlb.c linux-3.0.4/arch/x86/mm/tlb.c ---- linux-3.0.4/arch/x86/mm/tlb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/tlb.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/net/bpf_jit_comp.c linux-3.0.4/arch/x86/net/bpf_jit_comp.c ---- linux-3.0.4/arch/x86/net/bpf_jit_comp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/net/bpf_jit_comp.c 2011-08-23 21:47:55.000000000 -0400 -@@ -589,7 +589,9 @@ cond_branch: f_offset = addrs[i + filt - module_free(NULL, image); - return; - } -+ pax_open_kernel(); - memcpy(image + proglen, temp, ilen); -+ pax_close_kernel(); - } - proglen += ilen; - addrs[i] = proglen; -@@ -609,7 +611,7 @@ cond_branch: f_offset = addrs[i + filt - break; - } - if (proglen == oldproglen) { -- image = module_alloc(max_t(unsigned int, -+ image = module_alloc_exec(max_t(unsigned int, - proglen, - sizeof(struct work_struct))); - if (!image) -diff -urNp linux-3.0.4/arch/x86/oprofile/backtrace.c linux-3.0.4/arch/x86/oprofile/backtrace.c ---- linux-3.0.4/arch/x86/oprofile/backtrace.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/arch/x86/oprofile/backtrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -148,7 +148,7 @@ x86_backtrace(struct pt_regs * const reg - { - 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 -urNp linux-3.0.4/arch/x86/pci/mrst.c linux-3.0.4/arch/x86/pci/mrst.c ---- linux-3.0.4/arch/x86/pci/mrst.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/pci/mrst.c 2011-08-23 21:47:55.000000000 -0400 -@@ -234,7 +234,9 @@ int __init pci_mrst_init(void) - printk(KERN_INFO "Moorestown platform detected, using MRST 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(); - /* Continue with standard init */ - return 1; - } -diff -urNp linux-3.0.4/arch/x86/pci/pcbios.c linux-3.0.4/arch/x86/pci/pcbios.c ---- linux-3.0.4/arch/x86/pci/pcbios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/pci/pcbios.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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_CPUS; 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); - -@@ -188,7 +234,10 @@ static int pci_bios_read(unsigned int se - - 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:" -@@ -197,7 +246,8 @@ static int pci_bios_read(unsigned int se - : "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: -@@ -205,7 +255,10 @@ static int pci_bios_read(unsigned int se - *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:" -@@ -214,7 +267,8 @@ static int pci_bios_read(unsigned int se - : "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: -@@ -222,7 +276,10 @@ static int pci_bios_read(unsigned int se - *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:" -@@ -231,7 +288,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_DWORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -254,7 +312,10 @@ static int pci_bios_write(unsigned int s - - 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:" -@@ -263,10 +324,14 @@ static int pci_bios_write(unsigned int s - "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:" -@@ -275,10 +340,14 @@ static int pci_bios_write(unsigned int s - "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:" -@@ -287,7 +356,8 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -392,10 +462,13 @@ struct irq_routing_table * pcibios_get_i - - 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:" -@@ -406,7 +479,8 @@ struct irq_routing_table * pcibios_get_i - "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) -@@ -430,7 +504,10 @@ int pcibios_set_irq_routing(struct pci_d - { - 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:" -@@ -438,7 +515,8 @@ int pcibios_set_irq_routing(struct pci_d - : "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 -urNp linux-3.0.4/arch/x86/platform/efi/efi_32.c linux-3.0.4/arch/x86/platform/efi/efi_32.c ---- linux-3.0.4/arch/x86/platform/efi/efi_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/efi/efi_32.c 2011-09-19 09:16:58.000000000 -0400 -@@ -38,70 +38,56 @@ - */ - - static unsigned long efi_rt_eflags; --static pgd_t efi_bak_pg_dir_pointer[2]; -+static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS]; - --void efi_call_phys_prelog(void) -+void __init efi_call_phys_prelog(void) - { -- unsigned long cr4; -- unsigned long temp; - struct desc_ptr gdt_descr; - -- local_irq_save(efi_rt_eflags); -+#ifdef CONFIG_PAX_KERNEXEC -+ struct desc_struct d; -+#endif - -- /* -- * If I don't have PAE, I should just duplicate two entries in page -- * directory. If I have PAE, I just need to duplicate one entry in -- * page directory. -- */ -- cr4 = read_cr4_safe(); -+ local_irq_save(efi_rt_eflags); - -- if (cr4 & X86_CR4_PAE) { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- swapper_pg_dir[0].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- } else { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- efi_bak_pg_dir_pointer[1].pgd = -- swapper_pg_dir[pgd_index(0x400000)].pgd; -- swapper_pg_dir[pgd_index(0)].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- temp = PAGE_OFFSET + 0x400000; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- swapper_pg_dir[pgd_index(temp)].pgd; -- } -+ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * After the lock is released, the original page table is restored. - */ - __flush_tlb_all(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_EFI_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_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); - } - --void efi_call_phys_epilog(void) -+void __init efi_call_phys_epilog(void) - { -- unsigned long cr4; - 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_EFI_CS, &d, DESCTYPE_S); -+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_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); - -- cr4 = read_cr4_safe(); -- -- if (cr4 & X86_CR4_PAE) { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- } else { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- efi_bak_pg_dir_pointer[1].pgd; -- } -+ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS); - - /* - * After the lock is released, the original page table is restored. -diff -urNp linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S ---- linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S 2011-09-19 09:16:58.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/platform/efi/efi_stub_64.S linux-3.0.4/arch/x86/platform/efi/efi_stub_64.S ---- linux-3.0.4/arch/x86/platform/efi/efi_stub_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/efi/efi_stub_64.S 2011-09-17 18:31:51.000000000 -0400 -@@ -40,6 +40,9 @@ ENTRY(efi_call0) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call0) - -@@ -50,6 +53,9 @@ ENTRY(efi_call1) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call1) - -@@ -60,6 +66,9 @@ ENTRY(efi_call2) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call2) - -@@ -71,6 +80,9 @@ ENTRY(efi_call3) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call3) - -@@ -83,6 +95,9 @@ ENTRY(efi_call4) - call *%rdi - addq $32, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call4) - -@@ -96,6 +111,9 @@ ENTRY(efi_call5) - call *%rdi - addq $48, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call5) - -@@ -112,5 +130,8 @@ ENTRY(efi_call6) - call *%rdi - addq $48, %rsp - RESTORE_XMM -+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+ orb $0x80, 0x7(%rsp) -+#endif - ret - ENDPROC(efi_call6) -diff -urNp linux-3.0.4/arch/x86/platform/mrst/mrst.c linux-3.0.4/arch/x86/platform/mrst/mrst.c ---- linux-3.0.4/arch/x86/platform/mrst/mrst.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/mrst/mrst.c 2011-08-23 21:47:55.000000000 -0400 -@@ -239,14 +239,16 @@ static int mrst_i8042_detect(void) - } - - /* Reboot and power off are handled by the SCU on a MID device */ --static void mrst_power_off(void) -+static __noreturn void mrst_power_off(void) - { - intel_scu_ipc_simple_command(0xf1, 1); -+ BUG(); - } - --static void mrst_reboot(void) -+static __noreturn void mrst_reboot(void) - { - intel_scu_ipc_simple_command(0xf1, 0); -+ BUG(); - } - - /* -diff -urNp linux-3.0.4/arch/x86/platform/uv/tlb_uv.c linux-3.0.4/arch/x86/platform/uv/tlb_uv.c ---- linux-3.0.4/arch/x86/platform/uv/tlb_uv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/uv/tlb_uv.c 2011-08-23 21:48:14.000000000 -0400 -@@ -373,6 +373,8 @@ static void reset_with_ipi(struct bau_ta - cpumask_t mask; - struct reset_args reset_args; - -+ pax_track_stack(); -+ - reset_args.sender = sender; - cpus_clear(mask); - /* find a single cpu for each uvhub in this distribution mask */ -diff -urNp linux-3.0.4/arch/x86/power/cpu.c linux-3.0.4/arch/x86/power/cpu.c ---- linux-3.0.4/arch/x86/power/cpu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/power/cpu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -130,7 +130,7 @@ 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 -@@ -140,7 +140,9 @@ 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 -urNp linux-3.0.4/arch/x86/vdso/Makefile linux-3.0.4/arch/x86/vdso/Makefile ---- linux-3.0.4/arch/x86/vdso/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -136,7 +136,7 @@ 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 -urNp linux-3.0.4/arch/x86/vdso/vdso32-setup.c linux-3.0.4/arch/x86/vdso/vdso32-setup.c ---- linux-3.0.4/arch/x86/vdso/vdso32-setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/vdso32-setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 m - 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); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -@@ -331,14 +332,14 @@ int arch_setup_additional_pages(struct l - 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) { - /* -@@ -361,11 +362,11 @@ int arch_setup_additional_pages(struct l - } - - 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); - -@@ -412,8 +413,14 @@ __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; - } - -@@ -423,7 +430,7 @@ struct vm_area_struct *get_gate_vma(stru - * 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 -urNp linux-3.0.4/arch/x86/vdso/vma.c linux-3.0.4/arch/x86/vdso/vma.c ---- linux-3.0.4/arch/x86/vdso/vma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/vma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -15,18 +15,19 @@ - #include <asm/proto.h> - #include <asm/vdso.h> - --unsigned int __read_mostly vdso_enabled = 1; -- - extern char vdso_start[], vdso_end[]; - extern unsigned short vdso_sync_cpuid; -+extern char __vsyscall_0; - - static struct page **vdso_pages; -+static struct page *vsyscall_page; - static unsigned vdso_size; - - static int __init init_vdso_vars(void) - { -- int npages = (vdso_end - vdso_start + PAGE_SIZE - 1) / PAGE_SIZE; -- int i; -+ size_t nbytes = vdso_end - vdso_start; -+ size_t npages = (nbytes + PAGE_SIZE - 1) / PAGE_SIZE; -+ size_t i; - - vdso_size = npages << PAGE_SHIFT; - vdso_pages = kmalloc(sizeof(struct page *) * npages, GFP_KERNEL); -@@ -34,19 +35,19 @@ static int __init init_vdso_vars(void) - goto oom; - for (i = 0; i < npages; i++) { - struct page *p; -- p = alloc_page(GFP_KERNEL); -+ p = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!p) - goto oom; - vdso_pages[i] = p; -- copy_page(page_address(p), vdso_start + i*PAGE_SIZE); -+ memcpy(page_address(p), vdso_start + i*PAGE_SIZE, nbytes > PAGE_SIZE ? PAGE_SIZE : nbytes); -+ nbytes -= PAGE_SIZE; - } -+ vsyscall_page = pfn_to_page((__pa_symbol(&__vsyscall_0)) >> PAGE_SHIFT); - - return 0; - - oom: -- printk("Cannot allocate vdso\n"); -- vdso_enabled = 0; -- return -ENOMEM; -+ panic("Cannot allocate vdso\n"); - } - subsys_initcall(init_vdso_vars); - -@@ -80,37 +81,35 @@ int arch_setup_additional_pages(struct l - unsigned long addr; - int ret; - -- if (!vdso_enabled) -- return 0; -- - down_write(&mm->mmap_sem); -- addr = vdso_addr(mm->start_stack, vdso_size); -- addr = get_unmapped_area(NULL, addr, vdso_size, 0, 0); -+ addr = vdso_addr(mm->start_stack, vdso_size + PAGE_SIZE); -+ addr = get_unmapped_area(NULL, addr, vdso_size + PAGE_SIZE, 0, 0); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - -- current->mm->context.vdso = (void *)addr; -+ mm->context.vdso = addr + PAGE_SIZE; - -- ret = install_special_mapping(mm, addr, vdso_size, -+ ret = install_special_mapping(mm, addr, PAGE_SIZE, - VM_READ|VM_EXEC| -- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| -+ VM_MAYREAD|VM_MAYEXEC| - VM_ALWAYSDUMP, -- vdso_pages); -+ &vsyscall_page); - if (ret) { -- current->mm->context.vdso = NULL; -+ mm->context.vdso = 0; - goto up_fail; - } - -+ ret = install_special_mapping(mm, addr + PAGE_SIZE, vdso_size, -+ VM_READ|VM_EXEC| -+ VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| -+ VM_ALWAYSDUMP, -+ vdso_pages); -+ if (ret) -+ mm->context.vdso = 0; -+ - up_fail: - up_write(&mm->mmap_sem); - return ret; - } -- --static __init int vdso_setup(char *s) --{ -- vdso_enabled = simple_strtoul(s, NULL, 0); -- return 0; --} --__setup("vdso=", vdso_setup); -diff -urNp linux-3.0.4/arch/x86/xen/enlighten.c linux-3.0.4/arch/x86/xen/enlighten.c ---- linux-3.0.4/arch/x86/xen/enlighten.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/enlighten.c 2011-08-29 23:26:21.000000000 -0400 -@@ -85,8 +85,6 @@ 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); -@@ -1010,7 +1008,7 @@ static const struct pv_apic_ops xen_apic - #endif - }; - --static void xen_reboot(int reason) -+static __noreturn void xen_reboot(int reason) - { - struct sched_shutdown r = { .reason = reason }; - -@@ -1018,17 +1016,17 @@ static void xen_reboot(int reason) - 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); - } -@@ -1134,7 +1132,17 @@ asmlinkage void __init xen_start_kernel( - __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(); - -@@ -1165,13 +1173,6 @@ asmlinkage void __init xen_start_kernel( - - 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 -urNp linux-3.0.4/arch/x86/xen/mmu.c linux-3.0.4/arch/x86/xen/mmu.c ---- linux-3.0.4/arch/x86/xen/mmu.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/mmu.c 2011-08-29 23:26:21.000000000 -0400 -@@ -1683,6 +1683,8 @@ pgd_t * __init xen_setup_kernel_pagetabl - convert_pfn_mfn(init_level4_pgt); - convert_pfn_mfn(level3_ident_pgt); - convert_pfn_mfn(level3_kernel_pgt); -+ convert_pfn_mfn(level3_vmalloc_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); -@@ -1701,7 +1703,10 @@ pgd_t * __init xen_setup_kernel_pagetabl - 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_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); - -@@ -1913,6 +1918,7 @@ static void __init xen_post_allocator_in - 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 -@@ -1994,6 +2000,7 @@ static const struct pv_mmu_ops xen_mmu_o - .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 -urNp linux-3.0.4/arch/x86/xen/smp.c linux-3.0.4/arch/x86/xen/smp.c ---- linux-3.0.4/arch/x86/xen/smp.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/smp.c 2011-08-29 23:26:21.000000000 -0400 -@@ -193,11 +193,6 @@ static void __init xen_smp_prepare_boot_ - { - 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(); - } -@@ -265,12 +260,12 @@ cpu_initialize_context(unsigned int cpu, - 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 -@@ -321,13 +316,12 @@ static int __cpuinit xen_cpu_up(unsigned - 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 -urNp linux-3.0.4/arch/x86/xen/xen-asm_32.S linux-3.0.4/arch/x86/xen/xen-asm_32.S ---- linux-3.0.4/arch/x86/xen/xen-asm_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-asm_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/xen/xen-head.S linux-3.0.4/arch/x86/xen/xen-head.S ---- linux-3.0.4/arch/x86/xen/xen-head.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-head.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/arch/x86/xen/xen-ops.h linux-3.0.4/arch/x86/xen/xen-ops.h ---- linux-3.0.4/arch/x86/xen/xen-ops.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-ops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/block/blk-iopoll.c linux-3.0.4/block/blk-iopoll.c ---- linux-3.0.4/block/blk-iopoll.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-iopoll.c 2011-08-23 21:47:55.000000000 -0400 -@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopo - } - 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 -urNp linux-3.0.4/block/blk-map.c linux-3.0.4/block/blk-map.c ---- linux-3.0.4/block/blk-map.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-map.c 2011-08-23 21:47:55.000000000 -0400 -@@ -301,7 +301,7 @@ int blk_rq_map_kern(struct request_queue - 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 -urNp linux-3.0.4/block/blk-softirq.c linux-3.0.4/block/blk-softirq.c ---- linux-3.0.4/block/blk-softirq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-softirq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ static DEFINE_PER_CPU(struct list_head, - * 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 -urNp linux-3.0.4/block/bsg.c linux-3.0.4/block/bsg.c ---- linux-3.0.4/block/bsg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/bsg.c 2011-08-23 21:47:55.000000000 -0400 -@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct r - 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 *)(unsigned long)hdr->request, -+ if (copy_from_user(cmdptr, (void *)(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 -urNp linux-3.0.4/block/scsi_ioctl.c linux-3.0.4/block/scsi_ioctl.c ---- linux-3.0.4/block/scsi_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/scsi_ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -222,8 +222,20 @@ 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; - -@@ -432,6 +444,8 @@ int sg_scsi_ioctl(struct request_queue * - 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; -@@ -465,9 +479,18 @@ int sg_scsi_ioctl(struct request_queue * - */ - 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 -urNp linux-3.0.4/crypto/cryptd.c linux-3.0.4/crypto/cryptd.c ---- linux-3.0.4/crypto/cryptd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/cryptd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/crypto/gf128mul.c linux-3.0.4/crypto/gf128mul.c ---- linux-3.0.4/crypto/gf128mul.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/gf128mul.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,7 +182,7 @@ void gf128mul_lle(be128 *r, const be128 - for (i = 0; i < 7; ++i) - gf128mul_x_lle(&p[i + 1], &p[i]); - -- memset(r, 0, sizeof(r)); -+ memset(r, 0, sizeof(*r)); - for (i = 0;;) { - u8 ch = ((u8 *)b)[15 - i]; - -@@ -220,7 +220,7 @@ void gf128mul_bbe(be128 *r, const be128 - for (i = 0; i < 7; ++i) - gf128mul_x_bbe(&p[i + 1], &p[i]); - -- memset(r, 0, sizeof(r)); -+ memset(r, 0, sizeof(*r)); - for (i = 0;;) { - u8 ch = ((u8 *)b)[i]; - -diff -urNp linux-3.0.4/crypto/serpent.c linux-3.0.4/crypto/serpent.c ---- linux-3.0.4/crypto/serpent.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/serpent.c 2011-08-23 21:48:14.000000000 -0400 -@@ -224,6 +224,8 @@ static int serpent_setkey(struct crypto_ - u32 r0,r1,r2,r3,r4; - int i; - -+ pax_track_stack(); -+ - /* Copy key, add padding */ - - for (i = 0; i < keylen; ++i) -diff -urNp linux-3.0.4/Documentation/dontdiff linux-3.0.4/Documentation/dontdiff ---- linux-3.0.4/Documentation/dontdiff 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/Documentation/dontdiff 2011-08-23 21:47:55.000000000 -0400 -@@ -5,6 +5,7 @@ - *.cis - *.cpio - *.csp -+*.dbg - *.dsp - *.dvi - *.elf -@@ -48,9 +49,11 @@ - *.tab.h - *.tex - *.ver -+*.vim - *.xml - *.xz - *_MODULES -+*_reg_safe.h - *_vga16.c - *~ - \#*# -@@ -70,6 +73,7 @@ Kerntypes - Module.markers - Module.symvers - PENDING -+PERF* - SCCS - System.map* - TAGS -@@ -98,6 +102,8 @@ bzImage* - capability_names.h - capflags.c - classlist.h* -+clut_vga16.c -+common-cmds.h - comp*.log - compile.h* - conf -@@ -126,12 +132,14 @@ 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 - hpet_example - hugepage-mmap - hugepage-shm -@@ -146,7 +154,6 @@ int32.c - int4.c - int8.c - kallsyms --kconfig - keywords.c - ksym.c* - ksym.h* -@@ -154,7 +161,6 @@ kxgettext - lkc_defs.h - lex.c - lex.*.c --linux - logo_*.c - logo_*_clut224.c - logo_*_mono.c -@@ -174,6 +180,7 @@ mkboot - mkbugboot - mkcpustr - mkdep -+mkpiggy - mkprep - mkregtable - mktables -@@ -209,6 +216,7 @@ r300_reg_safe.h - r420_reg_safe.h - r600_reg_safe.h - recordmcount -+regdb.c - relocs - rlim_names.h - rn50_reg_safe.h -@@ -219,6 +227,7 @@ setup - setup.bin - setup.elf - sImage -+slabinfo - sm_tbl* - split-include - syscalltab.h -@@ -246,7 +255,9 @@ vmlinux - vmlinux-* - vmlinux.aout - vmlinux.bin.all -+vmlinux.bin.bz2 - vmlinux.lds -+vmlinux.relocs - vmlinuz - voffset.h - vsyscall.lds -@@ -254,6 +265,7 @@ vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds -diff -urNp linux-3.0.4/Documentation/kernel-parameters.txt linux-3.0.4/Documentation/kernel-parameters.txt ---- linux-3.0.4/Documentation/kernel-parameters.txt 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/Documentation/kernel-parameters.txt 2011-08-23 21:47:55.000000000 -0400 -@@ -1883,6 +1883,13 @@ bytes respectively. Such letter suffixes - 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 -urNp linux-3.0.4/drivers/acpi/apei/cper.c linux-3.0.4/drivers/acpi/apei/cper.c ---- linux-3.0.4/drivers/acpi/apei/cper.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/apei/cper.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/acpi/ec_sys.c linux-3.0.4/drivers/acpi/ec_sys.c ---- linux-3.0.4/drivers/acpi/ec_sys.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/ec_sys.c 2011-08-24 19:06:55.000000000 -0400 -@@ -11,6 +11,7 @@ - #include <linux/kernel.h> - #include <linux/acpi.h> - #include <linux/debugfs.h> -+#include <asm/uaccess.h> - #include "internal.h" - - MODULE_AUTHOR("Thomas Renninger <trenn(a)suse.de>"); -@@ -39,7 +40,7 @@ static ssize_t acpi_ec_read_io(struct fi - * 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; - -@@ -52,9 +53,11 @@ static ssize_t acpi_ec_read_io(struct fi - 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--; - } -@@ -70,7 +73,6 @@ static ssize_t acpi_ec_write_io(struct f - - unsigned int size = count; - loff_t init_off = *off; -- u8 *data = (u8 *) buf; - int err = 0; - - if (*off >= EC_SPACE_SIZE) -@@ -81,7 +83,9 @@ static ssize_t acpi_ec_write_io(struct f - } - - 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 -urNp linux-3.0.4/drivers/acpi/proc.c linux-3.0.4/drivers/acpi/proc.c ---- linux-3.0.4/drivers/acpi/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/proc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -342,19 +342,13 @@ acpi_system_write_wakeup_device(struct f - size_t count, loff_t * ppos) - { - struct list_head *node, *next; -- char strbuf[5]; -- char str[5] = ""; -- unsigned int len = count; -- -- if (len > 4) -- len = 4; -- if (len < 0) -- return -EFAULT; -+ char strbuf[5] = {0}; - -- if (copy_from_user(strbuf, buffer, len)) -+ if (count > 4) -+ count = 4; -+ if (copy_from_user(strbuf, buffer, count)) - 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) { -@@ -363,7 +357,7 @@ acpi_system_write_wakeup_device(struct f - 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 -urNp linux-3.0.4/drivers/acpi/processor_driver.c linux-3.0.4/drivers/acpi/processor_driver.c ---- linux-3.0.4/drivers/acpi/processor_driver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/processor_driver.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,7 +473,7 @@ static int __cpuinit acpi_processor_add( - return 0; - #endif - -- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); -+ BUG_ON(pr->id >= nr_cpu_ids); - - /* - * Buggy BIOS check -diff -urNp linux-3.0.4/drivers/ata/libata-core.c linux-3.0.4/drivers/ata/libata-core.c ---- linux-3.0.4/drivers/ata/libata-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/libata-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -4753,7 +4753,7 @@ void ata_qc_free(struct ata_queued_cmd * - 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; -@@ -4769,7 +4769,7 @@ void __ata_qc_complete(struct ata_queued - 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; -@@ -5774,6 +5774,7 @@ static void ata_finalize_port_ops(struct - return; - - spin_lock(&lock); -+ pax_open_kernel(); - - for (cur = ops->inherits; cur; cur = cur->inherits) { - void **inherit = (void **)cur; -@@ -5787,8 +5788,9 @@ static void ata_finalize_port_ops(struct - if (IS_ERR(*pp)) - *pp = NULL; - -- ops->inherits = NULL; -+ *(struct ata_port_operations **)&ops->inherits = NULL; - -+ pax_close_kernel(); - spin_unlock(&lock); - } - -diff -urNp linux-3.0.4/drivers/ata/libata-eh.c linux-3.0.4/drivers/ata/libata-eh.c ---- linux-3.0.4/drivers/ata/libata-eh.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/libata-eh.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2518,6 +2518,8 @@ void ata_eh_report(struct ata_port *ap) - { - struct ata_link *link; - -+ pax_track_stack(); -+ - ata_for_each_link(link, ap, HOST_FIRST) - ata_eh_link_report(link); - } -diff -urNp linux-3.0.4/drivers/ata/pata_arasan_cf.c linux-3.0.4/drivers/ata/pata_arasan_cf.c ---- linux-3.0.4/drivers/ata/pata_arasan_cf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/pata_arasan_cf.c 2011-08-23 21:47:55.000000000 -0400 -@@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(str - /* 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 -urNp linux-3.0.4/drivers/atm/adummy.c linux-3.0.4/drivers/atm/adummy.c ---- linux-3.0.4/drivers/atm/adummy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/adummy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff -urNp linux-3.0.4/drivers/atm/ambassador.c linux-3.0.4/drivers/atm/ambassador.c ---- linux-3.0.4/drivers/atm/ambassador.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/ambassador.c 2011-08-23 21:47:55.000000000 -0400 -@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, - 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, - 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, - } 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 { -@@ -1342,7 +1342,7 @@ static int amb_send (struct atm_vcc * at - } - - 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 -urNp linux-3.0.4/drivers/atm/atmtcp.c linux-3.0.4/drivers/atm/atmtcp.c ---- linux-3.0.4/drivers/atm/atmtcp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/atmtcp.c 2011-08-23 21:47:55.000000000 -0400 -@@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc - 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 - 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 - 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 - 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 - __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 -urNp linux-3.0.4/drivers/atm/eni.c linux-3.0.4/drivers/atm/eni.c ---- linux-3.0.4/drivers/atm/eni.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/eni.c 2011-08-23 21:47:55.000000000 -0400 -@@ -526,7 +526,7 @@ 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 */ -@@ -581,7 +581,7 @@ 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); -@@ -598,7 +598,7 @@ 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; -@@ -771,7 +771,7 @@ rx_dequeued++; - vcc->push(vcc,skb); - pushed++; - } -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - wake_up(&eni_dev->rx_wait); - } -@@ -1228,7 +1228,7 @@ static void dequeue_tx(struct atm_dev *d - 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++; - } -diff -urNp linux-3.0.4/drivers/atm/firestream.c linux-3.0.4/drivers/atm/firestream.c ---- linux-3.0.4/drivers/atm/firestream.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/firestream.c 2011-08-23 21:47:55.000000000 -0400 -@@ -749,7 +749,7 @@ static void process_txdone_queue (struct - } - } - -- 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_ - #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_ - 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 -urNp linux-3.0.4/drivers/atm/fore200e.c linux-3.0.4/drivers/atm/fore200e.c ---- linux-3.0.4/drivers/atm/fore200e.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/fore200e.c 2011-08-23 21:47:55.000000000 -0400 -@@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200 - #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* fore2 - 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* fore2 - - 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* fore200 - 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, struc - 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 -urNp linux-3.0.4/drivers/atm/he.c linux-3.0.4/drivers/atm/he.c ---- linux-3.0.4/drivers/atm/he.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/he.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, i - - 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, i - 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, i - 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, str - 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_b - 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_b - 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_b - 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_b - 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_b - __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 -urNp linux-3.0.4/drivers/atm/horizon.c linux-3.0.4/drivers/atm/horizon.c ---- linux-3.0.4/drivers/atm/horizon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/horizon.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, - { - 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->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 -urNp linux-3.0.4/drivers/atm/idt77252.c linux-3.0.4/drivers/atm/idt77252.c ---- linux-3.0.4/drivers/atm/idt77252.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/idt77252.c 2011-08-23 21:47:55.000000000 -0400 -@@ -811,7 +811,7 @@ drain_scq(struct idt77252_dev *card, str - else - dev_kfree_skb(skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - - atomic_dec(&scq->used); -@@ -1074,13 +1074,13 @@ dequeue_rx(struct idt77252_dev *card, st - 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; - } -@@ -1097,7 +1097,7 @@ dequeue_rx(struct idt77252_dev *card, st - 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; - } -@@ -1134,13 +1134,13 @@ dequeue_rx(struct idt77252_dev *card, st - "(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) { -@@ -1151,7 +1151,7 @@ dequeue_rx(struct idt77252_dev *card, st - 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)) { -@@ -1170,7 +1170,7 @@ dequeue_rx(struct idt77252_dev *card, st - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return; - } -@@ -1192,7 +1192,7 @@ dequeue_rx(struct idt77252_dev *card, st - __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); -@@ -1303,14 +1303,14 @@ idt77252_rx_raw(struct idt77252_dev *car - 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; - } - -@@ -1329,7 +1329,7 @@ idt77252_rx_raw(struct idt77252_dev *car - 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); -@@ -1954,13 +1954,13 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - 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; - } -@@ -1972,14 +1972,14 @@ idt77252_send_skb(struct atm_vcc *vcc, s - 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; - } -@@ -1987,7 +1987,7 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - 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; - } -@@ -2010,7 +2010,7 @@ idt77252_send_oam(struct atm_vcc *vcc, v - 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 -urNp linux-3.0.4/drivers/atm/iphase.c linux-3.0.4/drivers/atm/iphase.c ---- linux-3.0.4/drivers/atm/iphase.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/iphase.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1120,7 +1120,7 @@ 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");) -@@ -1143,7 +1143,7 @@ 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; - } - -@@ -1293,7 +1293,7 @@ static void rx_dle_intr(struct atm_dev * - ia_vcc = INPH_IA_VCC(vcc); - if (ia_vcc == NULL) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - dev_kfree_skb_any(skb); - atm_return(vcc, atm_guess_pdu2truesize(len)); - goto INCR_DLE; -@@ -1305,7 +1305,7 @@ static void rx_dle_intr(struct atm_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);) - dev_kfree_skb_any(skb); -@@ -1321,7 +1321,7 @@ static void rx_dle_intr(struct atm_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: -@@ -2801,15 +2801,15 @@ static int ia_ioctl(struct atm_dev *dev, - { - 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; -@@ -2914,7 +2914,7 @@ static int ia_pkt_tx (struct atm_vcc *vc - 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 -@@ -3019,14 +3019,14 @@ static int ia_pkt_tx (struct atm_vcc *vc - 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 -urNp linux-3.0.4/drivers/atm/lanai.c linux-3.0.4/drivers/atm/lanai.c ---- linux-3.0.4/drivers/atm/lanai.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/lanai.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct l - 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 - 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); -@@ -1668,7 +1668,7 @@ static int handle_service(struct lanai_d - 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)))) { -@@ -1680,7 +1680,7 @@ static int handle_service(struct lanai_d - 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) - -@@ -1692,7 +1692,7 @@ static int handle_service(struct lanai_d - } - 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); -@@ -1700,7 +1700,7 @@ static int handle_service(struct lanai_d - 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 -urNp linux-3.0.4/drivers/atm/nicstar.c linux-3.0.4/drivers/atm/nicstar.c ---- linux-3.0.4/drivers/atm/nicstar.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/nicstar.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, - 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, - 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, - 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, - } - - 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 - 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 - 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 - 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 - 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 - ("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 - ("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 - 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 - /* 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 - 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 - 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 - 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 - - 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 - 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 - 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 - 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 - #endif /* NS_USE_DESTRUCTORS */ - __net_timestamp(hb); - vcc->push(vcc, hb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } - -diff -urNp linux-3.0.4/drivers/atm/solos-pci.c linux-3.0.4/drivers/atm/solos-pci.c ---- linux-3.0.4/drivers/atm/solos-pci.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/solos-pci.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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: -@@ -899,6 +899,8 @@ static int print_buffer(struct sk_buff * - char msg[500]; - char item[10]; - -+ pax_track_stack(); -+ - len = buf->len; - for (i = 0; i < len; i++){ - if(i % 8 == 0) -@@ -1008,7 +1010,7 @@ static uint32_t fpga_tx(struct solos_car - 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 -urNp linux-3.0.4/drivers/atm/suni.c linux-3.0.4/drivers/atm/suni.c ---- linux-3.0.4/drivers/atm/suni.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/suni.c 2011-08-23 21:47:55.000000000 -0400 -@@ -50,8 +50,8 @@ 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 -urNp linux-3.0.4/drivers/atm/uPD98402.c linux-3.0.4/drivers/atm/uPD98402.c ---- linux-3.0.4/drivers/atm/uPD98402.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/uPD98402.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *d - 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 - - - #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 - 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 - 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 -urNp linux-3.0.4/drivers/atm/zatm.c linux-3.0.4/drivers/atm/zatm.c ---- linux-3.0.4/drivers/atm/zatm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/zatm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy - } - 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 - 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 - 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 -urNp linux-3.0.4/drivers/base/power/wakeup.c linux-3.0.4/drivers/base/power/wakeup.c ---- linux-3.0.4/drivers/base/power/wakeup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/base/power/wakeup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -29,14 +29,14 @@ 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; -@@ -350,7 +350,7 @@ static void wakeup_source_activate(struc - ws->last_time = ktime_get(); - - /* Increment the counter of events in progress. */ -- atomic_inc(&combined_event_count); -+ atomic_inc_unchecked(&combined_event_count); - } - - /** -@@ -440,7 +440,7 @@ static void wakeup_source_deactivate(str - * 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 -urNp linux-3.0.4/drivers/block/cciss.c linux-3.0.4/drivers/block/cciss.c ---- linux-3.0.4/drivers/block/cciss.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cciss.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1179,6 +1179,8 @@ static int cciss_ioctl32_passthru(struct - int err; - u32 cp; - -+ memset(&arg64, 0, sizeof(arg64)); -+ - err = 0; - err |= - copy_from_user(&arg64.LUN_info, &arg32->LUN_info, -@@ -2986,7 +2988,7 @@ 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; - } -@@ -2996,7 +2998,7 @@ 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); -@@ -3422,17 +3424,17 @@ 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)); - } - -@@ -3465,7 +3467,7 @@ static inline u32 next_command(ctlr_info - 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 */ -@@ -4020,7 +4022,7 @@ static void __devinit cciss_put_controll - 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; -@@ -4292,7 +4294,7 @@ static int __devinit cciss_pci_init(ctlr - 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"); -@@ -5002,7 +5004,7 @@ 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; -@@ -5054,7 +5056,7 @@ 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[PERF_MODE_INT], h); - rc = cciss_request_irq(h, cciss_msix_discard_completions, -@@ -5074,9 +5076,9 @@ 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) -@@ -5099,7 +5101,7 @@ 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); -@@ -5171,7 +5173,7 @@ static void cciss_shutdown(struct pci_de - 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[PERF_MODE_INT], h); - } - -diff -urNp linux-3.0.4/drivers/block/cciss.h linux-3.0.4/drivers/block/cciss.h ---- linux-3.0.4/drivers/block/cciss.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/block/cciss.h 2011-08-23 21:47:55.000000000 -0400 -@@ -100,7 +100,7 @@ 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 -urNp linux-3.0.4/drivers/block/cpqarray.c linux-3.0.4/drivers/block/cpqarray.c ---- linux-3.0.4/drivers/block/cpqarray.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cpqarray.c 2011-08-23 21:48:14.000000000 -0400 -@@ -404,7 +404,7 @@ static int __devinit cpqarray_register_c - 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_c - 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_detec - 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 */ -@@ -911,6 +911,8 @@ static void do_ida_request(struct reques - struct scatterlist tmp_sg[SG_MAX]; - int i, dir, seg; - -+ pax_track_stack(); -+ - queue_next: - creq = blk_peek_request(q); - if (!creq) -@@ -980,7 +982,7 @@ 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 +990,7 @@ 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 +1052,7 @@ static irqreturn_t do_ida_intr(int irq, - 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 +1063,7 @@ static irqreturn_t do_ida_intr(int irq, - */ - 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 +1451,11 @@ 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 +1468,7 @@ 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 +1551,9 @@ static int revalidate_allvol(ctlr_info_t - * 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 +1593,7 @@ 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 -urNp linux-3.0.4/drivers/block/cpqarray.h linux-3.0.4/drivers/block/cpqarray.h ---- linux-3.0.4/drivers/block/cpqarray.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cpqarray.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/block/DAC960.c linux-3.0.4/drivers/block/DAC960.c ---- linux-3.0.4/drivers/block/DAC960.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/DAC960.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1980,6 +1980,8 @@ static bool DAC960_V1_ReadDeviceConfigur - unsigned long flags; - int Channel, TargetID; - -+ pax_track_stack(); -+ - if (!init_dma_loaf(Controller->PCIDevice, &local_dma, - DAC960_V1_MaxChannels*(sizeof(DAC960_V1_DCDB_T) + - sizeof(DAC960_SCSI_Inquiry_T) + -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_int.h linux-3.0.4/drivers/block/drbd/drbd_int.h ---- linux-3.0.4/drivers/block/drbd/drbd_int.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_int.h 2011-08-23 21:47:55.000000000 -0400 -@@ -737,7 +737,7 @@ 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; - }; -@@ -1109,7 +1109,7 @@ 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; -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_main.c linux-3.0.4/drivers/block/drbd/drbd_main.c ---- linux-3.0.4/drivers/block/drbd/drbd_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_main.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2397,7 +2397,7 @@ static int _drbd_send_ack(struct drbd_co - 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 *m - 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_ - 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->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 -urNp linux-3.0.4/drivers/block/drbd/drbd_nl.c linux-3.0.4/drivers/block/drbd/drbd_nl.c ---- linux-3.0.4/drivers/block/drbd/drbd_nl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_nl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2359,7 +2359,7 @@ static void drbd_connector_callback(stru - 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 * - 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_co - 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 *mde - 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 drb - 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 -urNp linux-3.0.4/drivers/block/drbd/drbd_receiver.c linux-3.0.4/drivers/block/drbd/drbd_receiver.c ---- linux-3.0.4/drivers/block/drbd/drbd_receiver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_receiver.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - 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 - 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_c - 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_c - } - - 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 - 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 - - 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_ - 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 -urNp linux-3.0.4/drivers/block/nbd.c linux-3.0.4/drivers/block/nbd.c ---- linux-3.0.4/drivers/block/nbd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/nbd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -157,6 +157,8 @@ static int sock_xmit(struct nbd_device * - struct kvec iov; - sigset_t blocked, oldset; - -+ pax_track_stack(); -+ - if (unlikely(!sock)) { - printk(KERN_ERR "%s: Attempted %s on closed socket in sock_xmit\n", - lo->disk->disk_name, (send ? "send" : "recv")); -@@ -572,6 +574,8 @@ static void do_nbd_request(struct reques - static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, - unsigned int cmd, unsigned long arg) - { -+ pax_track_stack(); -+ - switch (cmd) { - case NBD_DISCONNECT: { - struct request sreq; -diff -urNp linux-3.0.4/drivers/char/agp/frontend.c linux-3.0.4/drivers/char/agp/frontend.c ---- linux-3.0.4/drivers/char/agp/frontend.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/agp/frontend.c 2011-08-23 21:47:55.000000000 -0400 -@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct ag - 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 -urNp linux-3.0.4/drivers/char/briq_panel.c linux-3.0.4/drivers/char/briq_panel.c ---- linux-3.0.4/drivers/char/briq_panel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/briq_panel.c 2011-08-23 21:48:14.000000000 -0400 -@@ -9,6 +9,7 @@ - #include <linux/types.h> - #include <linux/errno.h> - #include <linux/tty.h> -+#include <linux/mutex.h> - #include <linux/timer.h> - #include <linux/kernel.h> - #include <linux/wait.h> -@@ -34,6 +35,7 @@ static int vfd_is_open; - static unsigned char vfd[40]; - static int vfd_cursor; - static unsigned char ledpb, led; -+static DEFINE_MUTEX(vfd_mutex); - - static void update_vfd(void) - { -@@ -140,12 +142,15 @@ static ssize_t briq_panel_write(struct f - if (!vfd_is_open) - return -EBUSY; - -+ mutex_lock(&vfd_mutex); - for (;;) { - char c; - if (!indx) - break; -- if (get_user(c, buf)) -+ if (get_user(c, buf)) { -+ mutex_unlock(&vfd_mutex); - return -EFAULT; -+ } - if (esc) { - set_led(c); - esc = 0; -@@ -175,6 +180,7 @@ static ssize_t briq_panel_write(struct f - buf++; - } - update_vfd(); -+ mutex_unlock(&vfd_mutex); - - return len; - } -diff -urNp linux-3.0.4/drivers/char/genrtc.c linux-3.0.4/drivers/char/genrtc.c ---- linux-3.0.4/drivers/char/genrtc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/genrtc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *fi - switch (cmd) { - - case RTC_PLL_GET: -+ memset(&pll, 0, sizeof(pll)); - if (get_rtc_pll(&pll)) - return -EINVAL; - else -diff -urNp linux-3.0.4/drivers/char/hpet.c linux-3.0.4/drivers/char/hpet.c ---- linux-3.0.4/drivers/char/hpet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/hpet.c 2011-08-23 21:47:55.000000000 -0400 -@@ -572,7 +572,7 @@ static inline unsigned long hpet_time_di - } - - 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 -urNp linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c ---- linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c 2011-08-23 21:48:14.000000000 -0400 -@@ -415,7 +415,7 @@ 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 -@@ -448,9 +448,9 @@ 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) - { -@@ -2868,7 +2868,7 @@ int ipmi_register_smi(struct ipmi_smi_ha - 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; - -@@ -4220,6 +4220,8 @@ static void send_panic_events(char *str) - struct ipmi_smi_msg smi_msg; - struct ipmi_recv_msg recv_msg; - -+ pax_track_stack(); -+ - si = (struct ipmi_system_interface_addr *) &addr; - si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; - si->channel = IPMI_BMC_CHANNEL; -diff -urNp linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c ---- linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c 2011-08-23 21:47:55.000000000 -0400 -@@ -277,7 +277,7 @@ 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; - -@@ -286,9 +286,9 @@ 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 - -@@ -3230,7 +3230,7 @@ static int try_smi_init(struct smi_info - 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 -urNp linux-3.0.4/drivers/char/Kconfig linux-3.0.4/drivers/char/Kconfig ---- linux-3.0.4/drivers/char/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -@@ -596,6 +597,7 @@ config DEVPORT - bool - depends on !M68K - depends on ISA || PCI -+ depends on !GRKERNSEC_KMEM - default y - - source "drivers/s390/char/Kconfig" -diff -urNp linux-3.0.4/drivers/char/mem.c linux-3.0.4/drivers/char/mem.c ---- linux-3.0.4/drivers/char/mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/mem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -34,6 +35,10 @@ - # include <linux/efi.h> - #endif - -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+extern struct file_operations grsec_fops; -+#endif -+ - static inline unsigned long size_inside_page(unsigned long start, - unsigned long size) - { -@@ -65,9 +70,13 @@ static inline int range_is_allowed(unsig - - 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; -@@ -75,6 +84,11 @@ static inline int range_is_allowed(unsig - } - 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) - { -@@ -117,6 +131,7 @@ static ssize_t read_mem(struct file *fil - - while (count > 0) { - unsigned long remaining; -+ char *temp; - - sz = size_inside_page(p, count); - -@@ -132,7 +147,23 @@ static ssize_t read_mem(struct file *fil - 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; -@@ -395,9 +426,8 @@ static ssize_t read_kmem(struct file *fi - 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) { -@@ -419,6 +449,8 @@ static ssize_t read_kmem(struct file *fi - } - #endif - while (low_count > 0) { -+ char *temp; -+ - sz = size_inside_page(p, low_count); - - /* -@@ -428,7 +460,22 @@ static ssize_t read_kmem(struct file *fi - */ - 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; -@@ -866,6 +913,9 @@ 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 -urNp linux-3.0.4/drivers/char/nvram.c linux-3.0.4/drivers/char/nvram.c ---- linux-3.0.4/drivers/char/nvram.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/nvram.c 2011-08-23 21:47:55.000000000 -0400 -@@ -246,7 +246,7 @@ static ssize_t nvram_read(struct file *f - - 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 -urNp linux-3.0.4/drivers/char/random.c linux-3.0.4/drivers/char/random.c ---- linux-3.0.4/drivers/char/random.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/char/random.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 }, -@@ -909,7 +921,7 @@ static ssize_t extract_entropy_user(stru - - 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; - } -@@ -1214,7 +1226,7 @@ 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 -urNp linux-3.0.4/drivers/char/sonypi.c linux-3.0.4/drivers/char/sonypi.c ---- linux-3.0.4/drivers/char/sonypi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/sonypi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -55,6 +55,7 @@ - #include <asm/uaccess.h> - #include <asm/io.h> - #include <asm/system.h> -+#include <asm/local.h> - - #include <linux/sonypi.h> - -@@ -491,7 +492,7 @@ 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; -@@ -898,7 +899,7 @@ static int sonypi_misc_fasync(int fd, st - 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; - } -@@ -907,9 +908,9 @@ static int sonypi_misc_open(struct inode - { - 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 -urNp linux-3.0.4/drivers/char/tpm/tpm_bios.c linux-3.0.4/drivers/char/tpm/tpm_bios.c ---- linux-3.0.4/drivers/char/tpm/tpm_bios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/tpm/tpm_bios.c 2011-08-23 21:47:55.000000000 -0400 -@@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start - 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( - 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_ - 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; - } -@@ -410,6 +411,11 @@ static int read_log(struct tpm_bios_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); - -diff -urNp linux-3.0.4/drivers/char/tpm/tpm.c linux-3.0.4/drivers/char/tpm/tpm.c ---- linux-3.0.4/drivers/char/tpm/tpm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/tpm/tpm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -411,7 +411,7 @@ static ssize_t tpm_transmit(struct tpm_c - 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; -@@ -844,6 +844,8 @@ ssize_t tpm_show_pubek(struct device *de - - struct tpm_chip *chip = dev_get_drvdata(dev); - -+ pax_track_stack(); -+ - tpm_cmd.header.in = tpm_readpubek_header; - err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, - "attempting to read the PUBEK"); -diff -urNp linux-3.0.4/drivers/crypto/hifn_795x.c linux-3.0.4/drivers/crypto/hifn_795x.c ---- linux-3.0.4/drivers/crypto/hifn_795x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/crypto/hifn_795x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1655,6 +1655,8 @@ static int hifn_test(struct hifn_device - 0xCA, 0x34, 0x2B, 0x2E}; - struct scatterlist sg; - -+ pax_track_stack(); -+ - memset(src, 0, sizeof(src)); - memset(ctx.key, 0, sizeof(ctx.key)); - -diff -urNp linux-3.0.4/drivers/crypto/padlock-aes.c linux-3.0.4/drivers/crypto/padlock-aes.c ---- linux-3.0.4/drivers/crypto/padlock-aes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/crypto/padlock-aes.c 2011-08-23 21:48:14.000000000 -0400 -@@ -109,6 +109,8 @@ static int aes_set_key(struct crypto_tfm - struct crypto_aes_ctx gen_aes; - int cpu; - -+ pax_track_stack(); -+ - if (key_len % 8) { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; -diff -urNp linux-3.0.4/drivers/edac/edac_pci_sysfs.c linux-3.0.4/drivers/edac/edac_pci_sysfs.c ---- linux-3.0.4/drivers/edac/edac_pci_sysfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/edac/edac_pci_sysfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log - 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(str - 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(str - "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(str - "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(str - 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(str - "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(str - "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 -urNp linux-3.0.4/drivers/edac/mce_amd.h linux-3.0.4/drivers/edac/mce_amd.h ---- linux-3.0.4/drivers/edac/mce_amd.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/edac/mce_amd.h 2011-08-23 21:47:55.000000000 -0400 -@@ -83,7 +83,7 @@ struct amd_decoder_ops { - bool (*dc_mce)(u16, u8); - bool (*ic_mce)(u16, u8); - bool (*nb_mce)(u16, u8); --}; -+} __no_const; - - void amd_report_gart_errors(bool); - void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32)); -diff -urNp linux-3.0.4/drivers/firewire/core-card.c linux-3.0.4/drivers/firewire/core-card.c ---- linux-3.0.4/drivers/firewire/core-card.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-card.c 2011-08-23 21:47:55.000000000 -0400 -@@ -657,7 +657,7 @@ 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 -urNp linux-3.0.4/drivers/firewire/core-cdev.c linux-3.0.4/drivers/firewire/core-cdev.c ---- linux-3.0.4/drivers/firewire/core-cdev.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-cdev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1313,8 +1313,7 @@ static int init_iso_resource(struct clie - 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 -urNp linux-3.0.4/drivers/firewire/core.h linux-3.0.4/drivers/firewire/core.h ---- linux-3.0.4/drivers/firewire/core.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core.h 2011-08-23 21:47:55.000000000 -0400 -@@ -101,6 +101,7 @@ 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 -urNp linux-3.0.4/drivers/firewire/core-transaction.c linux-3.0.4/drivers/firewire/core-transaction.c ---- linux-3.0.4/drivers/firewire/core-transaction.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-transaction.c 2011-08-23 21:48:14.000000000 -0400 -@@ -37,6 +37,7 @@ - #include <linux/timer.h> - #include <linux/types.h> - #include <linux/workqueue.h> -+#include <linux/sched.h> - - #include <asm/byteorder.h> - -@@ -422,6 +423,8 @@ int fw_run_transaction(struct fw_card *c - struct transaction_callback_data d; - struct fw_transaction t; - -+ pax_track_stack(); -+ - init_timer_on_stack(&t.split_timeout_timer); - init_completion(&d.done); - d.payload = payload; -diff -urNp linux-3.0.4/drivers/firmware/dmi_scan.c linux-3.0.4/drivers/firmware/dmi_scan.c ---- linux-3.0.4/drivers/firmware/dmi_scan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firmware/dmi_scan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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; -diff -urNp linux-3.0.4/drivers/gpio/vr41xx_giu.c linux-3.0.4/drivers/gpio/vr41xx_giu.c ---- linux-3.0.4/drivers/gpio/vr41xx_giu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpio/vr41xx_giu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c ---- linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c 2011-08-23 21:48:14.000000000 -0400 -@@ -276,7 +276,7 @@ static bool drm_encoder_crtc_ok(struct d - struct drm_crtc *tmp; - int crtc_mask = 1; - -- WARN(!crtc, "checking null crtc?\n"); -+ BUG_ON(!crtc); - - dev = crtc->dev; - -@@ -343,6 +343,8 @@ bool drm_crtc_helper_set_mode(struct drm - struct drm_encoder *encoder; - bool ret = true; - -+ pax_track_stack(); -+ - crtc->enabled = drm_helper_crtc_in_use(crtc); - if (!crtc->enabled) - return true; -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_drv.c linux-3.0.4/drivers/gpu/drm/drm_drv.c ---- linux-3.0.4/drivers/gpu/drm/drm_drv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_drv.c 2011-08-23 21:47:55.000000000 -0400 -@@ -386,7 +386,7 @@ long drm_ioctl(struct file *filp, - - dev = file_priv->minor->dev; - 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 -urNp linux-3.0.4/drivers/gpu/drm/drm_fops.c linux-3.0.4/drivers/gpu/drm/drm_fops.c ---- linux-3.0.4/drivers/gpu/drm/drm_fops.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_fops.c 2011-08-23 21:47:55.000000000 -0400 -@@ -70,7 +70,7 @@ static int drm_setup(struct drm_device * - } - - 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; - -@@ -134,8 +134,8 @@ int drm_open(struct inode *inode, struct - - 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) { -@@ -472,7 +472,7 @@ int drm_release(struct inode *inode, str - - mutex_lock(&drm_global_mutex); - -- DRM_DEBUG("open_count = %d\n", dev->open_count); -+ DRM_DEBUG("open_count = %d\n", local_read(&dev->open_count)); - - if (dev->driver->preclose) - dev->driver->preclose(dev, file_priv); -@@ -484,7 +484,7 @@ int drm_release(struct inode *inode, str - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - task_pid_nr(current), - (long)old_encode_dev(file_priv->minor->device), -- dev->open_count); -+ local_read(&dev->open_count)); - - /* if the master has gone away we can't do anything with the lock */ - if (file_priv->minor->master) -@@ -565,8 +565,8 @@ int drm_release(struct inode *inode, str - * 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 -urNp linux-3.0.4/drivers/gpu/drm/drm_global.c linux-3.0.4/drivers/gpu/drm/drm_global.c ---- linux-3.0.4/drivers/gpu/drm/drm_global.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_global.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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_globa - 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_globa - 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_gl - 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 -urNp linux-3.0.4/drivers/gpu/drm/drm_info.c linux-3.0.4/drivers/gpu/drm/drm_info.c ---- linux-3.0.4/drivers/gpu/drm/drm_info.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_info.c 2011-08-23 21:48:14.000000000 -0400 -@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void - 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 - 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, voi - 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 -urNp linux-3.0.4/drivers/gpu/drm/drm_ioctl.c linux-3.0.4/drivers/gpu/drm/drm_ioctl.c ---- linux-3.0.4/drivers/gpu/drm/drm_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -256,7 +256,7 @@ int drm_getstats(struct drm_device *dev, - 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 -urNp linux-3.0.4/drivers/gpu/drm/drm_lock.c linux-3.0.4/drivers/gpu/drm/drm_lock.c ---- linux-3.0.4/drivers/gpu/drm/drm_lock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_lock.c 2011-08-23 21:47:55.000000000 -0400 -@@ -89,7 +89,7 @@ int drm_lock(struct drm_device *dev, voi - 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 */ - } - -@@ -160,7 +160,7 @@ int drm_unlock(struct drm_device *dev, v - 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 -urNp linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c ---- linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -950,8 +950,8 @@ static int i810_dma_vertex(struct drm_de - 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]; - -@@ -1111,8 +1111,8 @@ static int i810_dma_mc(struct drm_device - 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 -urNp linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h ---- linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -497,7 +497,7 @@ static int i915_interrupt_info(struct se - 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)) { - seq_printf(m, "Graphics Interrupt mask (%s): %08x\n", -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1169,7 +1169,7 @@ static bool i915_switcheroo_can_switch(s - 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 -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h ---- linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -219,7 +219,7 @@ 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; -@@ -300,7 +300,7 @@ 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; -@@ -874,7 +874,7 @@ 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) -@@ -1247,7 +1247,7 @@ extern int intel_setup_gmbus(struct drm_ - 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 -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-08-23 21:47:55.000000000 -0400 -@@ -188,7 +188,7 @@ i915_gem_object_set_to_gpu_domain(struct - 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 -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,7 +473,7 @@ static irqreturn_t ivybridge_irq_handler - 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( - 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; -@@ -1226,7 +1226,7 @@ static irqreturn_t i915_driver_irq_handl - 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); - -@@ -1735,7 +1735,7 @@ static void ironlake_irq_preinstall(stru - { - 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); -@@ -1899,7 +1899,7 @@ static void i915_driver_irq_preinstall(s - 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 -urNp linux-3.0.4/drivers/gpu/drm/i915/intel_display.c linux-3.0.4/drivers/gpu/drm/i915/intel_display.c ---- linux-3.0.4/drivers/gpu/drm/i915/intel_display.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/intel_display.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1961,7 +1961,7 @@ intel_pipe_set_base(struct drm_crtc *crt - - 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 -@@ -2548,7 +2548,7 @@ static void intel_crtc_wait_for_pending_ - 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) -@@ -6225,7 +6225,7 @@ static void do_intel_finish_page_flip(st - - 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); -@@ -6514,7 +6514,7 @@ static int intel_crtc_page_flip(struct d - /* 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) -@@ -6527,7 +6527,7 @@ static int intel_crtc_page_flip(struct d - 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); - cleanup_objs: - drm_gem_object_unreference(&work->old_fb_obj->base); - drm_gem_object_unreference(&obj->base); -diff -urNp linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h ---- linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c ---- linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_de - 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_I - /* 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_I - 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_dev - * 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 -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-08-26 19:49:56.000000000 -0400 -@@ -200,7 +200,7 @@ struct methods { - const char desc[8]; - void (*loadbios)(struct drm_device *, uint8_t *); - const bool rw; --}; -+} __do_const; - - static struct methods shadow_methods[] = { - { "PRAMIN", load_vbios_pramin, true }, -@@ -5488,7 +5488,7 @@ parse_bit_displayport_tbl_entry(struct d - 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 -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -227,7 +227,7 @@ 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; - } fence; - - /* DMA push buffer */ -@@ -304,7 +304,7 @@ 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; -@@ -325,13 +325,13 @@ 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; -@@ -494,7 +494,7 @@ 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; -@@ -640,7 +640,7 @@ 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 -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -85,7 +85,7 @@ nouveau_fence_update(struct nouveau_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; -@@ -544,7 +544,7 @@ nouveau_fence_channel_init(struct nouvea - - INIT_LIST_HEAD(&chan->fence.pending); - spin_lock_init(&chan->fence.lock); -- atomic_set(&chan->fence.last_sequence_irq, 0); -+ atomic_set_unchecked(&chan->fence.last_sequence_irq, 0); - return 0; - } - -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-08-23 21:47:55.000000000 -0400 -@@ -249,7 +249,7 @@ validate_init(struct nouveau_channel *ch - 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 -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -488,7 +488,7 @@ static bool nouveau_switcheroo_can_switc - 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 -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c 2011-08-23 21:47:55.000000000 -0400 -@@ -560,7 +560,7 @@ 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 -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c 2011-08-23 21:47:55.000000000 -0400 -@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_d - - /* 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 -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h ---- linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_d - 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_ - /* 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 -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_state.c linux-3.0.4/drivers/gpu/drm/r128/r128_state.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/atom.c linux-3.0.4/drivers/gpu/drm/radeon/atom.c ---- linux-3.0.4/drivers/gpu/drm/radeon/atom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/atom.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1245,6 +1245,8 @@ struct atom_context *atom_parse(struct c - char name[512]; - int i; - -+ pax_track_stack(); -+ - ctx->card = card; - ctx->bios = bios; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c ---- linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, - 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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c 2011-08-23 21:48:14.000000000 -0400 -@@ -545,6 +545,8 @@ bool radeon_get_atom_connector_info_from - struct radeon_gpio_rec gpio; - struct radeon_hpd hpd; - -+ pax_track_stack(); -+ - if (!atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset)) - return false; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c 2011-08-23 21:47:55.000000000 -0400 -@@ -678,7 +678,7 @@ static bool radeon_switcheroo_can_switch - 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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c 2011-08-23 21:48:14.000000000 -0400 -@@ -946,6 +946,8 @@ void radeon_compute_pll_legacy(struct ra - uint32_t post_div; - u32 pll_out_min, pll_out_max; - -+ pax_track_stack(); -+ - DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); - freq = freq * 1000; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -78,7 +78,7 @@ int radeon_fence_emit(struct radeon_devi - write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); - return 0; - } -- fence->seq = atomic_add_return(1, &rdev->fence_drv.seq); -+ fence->seq = atomic_add_return_unchecked(1, &rdev->fence_drv.seq); - if (!rdev->cp.ready) - /* FIXME: cp is not running assume everythings is done right - * away -@@ -373,7 +373,7 @@ int radeon_fence_driver_init(struct rade - return r; - } - radeon_fence_write(rdev, 0); -- atomic_set(&rdev->fence_drv.seq, 0); -+ atomic_set_unchecked(&rdev->fence_drv.seq, 0); - INIT_LIST_HEAD(&rdev->fence_drv.created); - INIT_LIST_HEAD(&rdev->fence_drv.emited); - INIT_LIST_HEAD(&rdev->fence_drv.signaled); -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon.h linux-3.0.4/drivers/gpu/drm/radeon/radeon.h ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon.h 2011-08-23 21:47:55.000000000 -0400 -@@ -191,7 +191,7 @@ extern int sumo_get_temp(struct radeon_d - */ - struct radeon_fence_driver { - uint32_t scratch_reg; -- atomic_t seq; -+ atomic_unchecked_t seq; - uint32_t last_seq; - unsigned long last_jiffies; - unsigned long last_timeout; -@@ -960,7 +960,7 @@ struct radeon_asic { - void (*pre_page_flip)(struct radeon_device *rdev, int crtc); - u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base); - void (*post_page_flip)(struct radeon_device *rdev, int crtc); --}; -+} __no_const; - - /* - * Asic structures -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(str - 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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_de - 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_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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_de - 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 - { - 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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -644,8 +644,10 @@ int radeon_mmap(struct file *filp, struc - } - 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 -urNp linux-3.0.4/drivers/gpu/drm/radeon/rs690.c linux-3.0.4/drivers/gpu/drm/radeon/rs690.c ---- linux-3.0.4/drivers/gpu/drm/radeon/rs690.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/rs690.c 2011-08-23 21:47:55.000000000 -0400 -@@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct - 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 -urNp linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c ---- linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -398,9 +398,9 @@ static int ttm_pool_get_num_unused_pages - 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 -urNp linux-3.0.4/drivers/gpu/drm/via/via_drv.h linux-3.0.4/drivers/gpu/drm/via/via_drv.h ---- linux-3.0.4/drivers/gpu/drm/via/via_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/via/via_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/gpu/drm/via/via_irq.c linux-3.0.4/drivers/gpu/drm/via/via_irq.c ---- linux-3.0.4/drivers/gpu/drm/via/via_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/via/via_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_de - 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_I - - 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_I - 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_I - - 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 *d - 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 dr - } - - 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, - 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 -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -240,7 +240,7 @@ struct vmw_private { - * Fencing and IRQs. - */ - -- atomic_t fence_seq; -+ atomic_unchecked_t fence_seq; - wait_queue_head_t fence_queue; - wait_queue_head_t fifo_queue; - atomic_t fence_queue_waiters; -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev - while (!vmw_lag_lt(queue, us)) { - spin_lock(&queue->lock); - if (list_empty(&queue->head)) -- sequence = atomic_read(&dev_priv->fence_seq); -+ sequence = atomic_read_unchecked(&dev_priv->fence_seq); - else { - fence = list_first_entry(&queue->head, - struct vmw_fence, head); -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-08-23 21:47:55.000000000 -0400 -@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *de - (unsigned int) min, - (unsigned int) fifo->capabilities); - -- atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence); -+ atomic_set_unchecked(&dev_priv->fence_seq, dev_priv->last_read_sequence); - iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE); - vmw_fence_queue_init(&fifo->fence_queue); - return vmw_fifo_send_fence(dev_priv, &dummy); -@@ -476,7 +476,7 @@ int vmw_fifo_send_fence(struct vmw_priva - - fm = vmw_fifo_reserve(dev_priv, bytes); - if (unlikely(fm == NULL)) { -- *sequence = atomic_read(&dev_priv->fence_seq); -+ *sequence = atomic_read_unchecked(&dev_priv->fence_seq); - ret = -ENOMEM; - (void)vmw_fallback_wait(dev_priv, false, true, *sequence, - false, 3*HZ); -@@ -484,7 +484,7 @@ int vmw_fifo_send_fence(struct vmw_priva - } - - do { -- *sequence = atomic_add_return(1, &dev_priv->fence_seq); -+ *sequence = atomic_add_return_unchecked(1, &dev_priv->fence_seq); - } while (*sequence == 0); - - if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) { -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -100,7 +100,7 @@ bool vmw_fence_signaled(struct vmw_priva - * emitted. Then the fence is stale and signaled. - */ - -- ret = ((atomic_read(&dev_priv->fence_seq) - sequence) -+ ret = ((atomic_read_unchecked(&dev_priv->fence_seq) - sequence) - > VMW_FENCE_WRAP); - - return ret; -@@ -131,7 +131,7 @@ int vmw_fallback_wait(struct vmw_private - - if (fifo_idle) - down_read(&fifo_state->rwsem); -- signal_seq = atomic_read(&dev_priv->fence_seq); -+ signal_seq = atomic_read_unchecked(&dev_priv->fence_seq); - ret = 0; - - for (;;) { -diff -urNp linux-3.0.4/drivers/hid/hid-core.c linux-3.0.4/drivers/hid/hid-core.c ---- linux-3.0.4/drivers/hid/hid-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hid/hid-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1923,7 +1923,7 @@ static bool hid_ignore(struct hid_device - - 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)) -@@ -1938,7 +1938,7 @@ int hid_add_device(struct hid_device *hd - /* 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 -urNp linux-3.0.4/drivers/hid/usbhid/hiddev.c linux-3.0.4/drivers/hid/usbhid/hiddev.c ---- linux-3.0.4/drivers/hid/usbhid/hiddev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hid/usbhid/hiddev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -624,7 +624,7 @@ static long hiddev_ioctl(struct file *fi - break; - - case HIDIOCAPPLICATION: -- if (arg < 0 || arg >= hid->maxapplication) -+ if (arg >= hid->maxapplication) - break; - - for (i = 0; i < hid->maxcollection; i++) -diff -urNp linux-3.0.4/drivers/hwmon/acpi_power_meter.c linux-3.0.4/drivers/hwmon/acpi_power_meter.c ---- linux-3.0.4/drivers/hwmon/acpi_power_meter.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/acpi_power_meter.c 2011-08-23 21:47:55.000000000 -0400 -@@ -316,8 +316,6 @@ static ssize_t set_trip(struct device *d - return res; - - temp /= 1000; -- if (temp < 0) -- return -EINVAL; - - mutex_lock(&resource->lock); - resource->trip[attr->index - 7] = temp; -diff -urNp linux-3.0.4/drivers/hwmon/sht15.c linux-3.0.4/drivers/hwmon/sht15.c ---- linux-3.0.4/drivers/hwmon/sht15.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/sht15.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 sht1 - 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 - - /* 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 wo - * 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 has been scheduled */ - if (gpio_get_value(data->pdata->gpio_data) -- || atomic_read(&data->interrupt_handled)) -+ || atomic_read_unchecked(&data->interrupt_handled)) - return; - } - -diff -urNp linux-3.0.4/drivers/hwmon/w83791d.c linux-3.0.4/drivers/hwmon/w83791d.c ---- linux-3.0.4/drivers/hwmon/w83791d.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/w83791d.c 2011-08-23 21:47:55.000000000 -0400 -@@ -329,8 +329,8 @@ static int w83791d_detect(struct i2c_cli - struct i2c_board_info *info); - static int w83791d_remove(struct i2c_client *client); - --static int w83791d_read(struct i2c_client *client, u8 register); --static int w83791d_write(struct i2c_client *client, u8 register, u8 value); -+static int w83791d_read(struct i2c_client *client, u8 reg); -+static int w83791d_write(struct i2c_client *client, u8 reg, u8 value); - static struct w83791d_data *w83791d_update_device(struct device *dev); - - #ifdef DEBUG -diff -urNp linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c ---- linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c ---- linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/i2c/i2c-mux.c linux-3.0.4/drivers/i2c/i2c-mux.c ---- linux-3.0.4/drivers/i2c/i2c-mux.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/i2c-mux.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/ide/ide-cd.c linux-3.0.4/drivers/ide/ide-cd.c ---- linux-3.0.4/drivers/ide/ide-cd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/ide-cd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -769,7 +769,7 @@ static void cdrom_do_block_pc(ide_drive_ - 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 -urNp linux-3.0.4/drivers/ide/ide-floppy.c linux-3.0.4/drivers/ide/ide-floppy.c ---- linux-3.0.4/drivers/ide/ide-floppy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/ide-floppy.c 2011-08-23 21:48:14.000000000 -0400 -@@ -379,6 +379,8 @@ static int ide_floppy_get_capacity(ide_d - u8 pc_buf[256], header_len, desc_cnt; - int i, rc = 1, blocks, length; - -+ pax_track_stack(); -+ - ide_debug_log(IDE_DBG_FUNC, "enter"); - - drive->bios_cyl = 0; -diff -urNp linux-3.0.4/drivers/ide/setup-pci.c linux-3.0.4/drivers/ide/setup-pci.c ---- linux-3.0.4/drivers/ide/setup-pci.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/setup-pci.c 2011-08-23 21:48:14.000000000 -0400 -@@ -542,6 +542,8 @@ int ide_pci_init_two(struct pci_dev *dev - int ret, i, n_ports = dev2 ? 4 : 2; - struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL }; - -+ pax_track_stack(); -+ - for (i = 0; i < n_ports / 2; i++) { - ret = ide_setup_pci_controller(pdev[i], d, !i); - if (ret < 0) -diff -urNp linux-3.0.4/drivers/infiniband/core/cm.c linux-3.0.4/drivers/infiniband/core/cm.c ---- linux-3.0.4/drivers/infiniband/core/cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/core/cm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -113,7 +113,7 @@ static char const counter_group_names[CM - - 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 { -@@ -1387,7 +1387,7 @@ static void cm_dup_req_handler(struct cm - 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. */ -@@ -1765,7 +1765,7 @@ static void cm_dup_rep_handler(struct cm - 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) -@@ -1932,7 +1932,7 @@ static int cm_rtu_handler(struct cm_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; - } -@@ -2115,7 +2115,7 @@ static int cm_dreq_handler(struct cm_wor - 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; -@@ -2140,7 +2140,7 @@ static int cm_dreq_handler(struct cm_wor - 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; -@@ -2154,7 +2154,7 @@ static int cm_dreq_handler(struct cm_wor - 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: -@@ -2521,7 +2521,7 @@ static int cm_mra_handler(struct cm_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; -@@ -2530,7 +2530,7 @@ static int cm_mra_handler(struct cm_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: -@@ -2692,7 +2692,7 @@ static int cm_lap_handler(struct cm_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; -@@ -2708,7 +2708,7 @@ static int cm_lap_handler(struct cm_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: -@@ -2992,7 +2992,7 @@ static int cm_sidr_req_handler(struct cm - 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. */ - } -@@ -3204,10 +3204,10 @@ static void cm_send_handler(struct ib_ma - 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]); - -@@ -3417,7 +3417,7 @@ static void cm_recv_handler(struct ib_ma - } - - 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, -@@ -3615,7 +3615,7 @@ static ssize_t cm_show_counter(struct ko - 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 -urNp linux-3.0.4/drivers/infiniband/core/fmr_pool.c linux-3.0.4/drivers/infiniband/core/fmr_pool.c ---- linux-3.0.4/drivers/infiniband/core/fmr_pool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/core/fmr_pool.c 2011-08-23 21:47:55.000000000 -0400 -@@ -97,8 +97,8 @@ 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; - }; -@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *p - 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) -@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *p - } - - 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); -@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(s - 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, -@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_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; -@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_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 -urNp linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c ---- linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c 2011-08-23 21:47:55.000000000 -0400 -@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_r - 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_r - &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 -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -113,6 +113,8 @@ static ssize_t atomic_counters_read(stru - struct infinipath_counters counters; - struct ipath_devdata *dd; - -+ pax_track_stack(); -+ - dd = file->f_path.dentry->d_inode->i_private; - dd->ipath_f_read_counters(dd, &counters); - -diff -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *de - 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 *de - 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 -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ip - 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 -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes.c linux-3.0.4/drivers/infiniband/hw/nes/nes.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes.c 2011-08-23 21:47:55.000000000 -0400 -@@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limi - 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; -@@ -275,7 +275,7 @@ static void nes_cqp_rem_ref_callback(str - 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 -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 *); -@@ -151,13 +151,13 @@ 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; - - - /** -@@ -1045,7 +1045,7 @@ static int mini_cm_dec_refcnt_listen(str - 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); - } -@@ -1240,7 +1240,7 @@ static struct nes_cm_node *make_cm_node( - 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; - } -@@ -1298,7 +1298,7 @@ static int rem_ref_cm_node(struct nes_cm - } - - 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; -@@ -1365,7 +1365,7 @@ static int process_options(struct nes_cm - - 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); - } - -@@ -1428,7 +1428,7 @@ static void handle_rst_pkt(struct nes_cm - { - - 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)); -@@ -2057,7 +2057,7 @@ static struct nes_cm_node *mini_cm_conne - 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; -@@ -2332,7 +2332,7 @@ static int mini_cm_recv_pkt(struct nes_c - add_ref_cm_node(cm_node); - } else if (cm_node->state == NES_CM_STATE_TSA) { - 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; - } -@@ -2638,7 +2638,7 @@ static int nes_cm_disconn_true(struct ne - - 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; -@@ -2660,7 +2660,7 @@ static int nes_cm_disconn_true(struct ne - } - - if (issue_close) { -- atomic_inc(&cm_closes); -+ atomic_inc_unchecked(&cm_closes); - nes_disconnect(nesqp, 1); - - cm_id->provider_data = nesqp; -@@ -2791,7 +2791,7 @@ int nes_accept(struct iw_cm_id *cm_id, s - - 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)); -@@ -3001,7 +3001,7 @@ int nes_reject(struct iw_cm_id *cm_id, c - - struct nes_cm_core *cm_core; - -- 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; -@@ -3067,7 +3067,7 @@ int nes_connect(struct iw_cm_id *cm_id, - 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 */ -@@ -3173,7 +3173,7 @@ int nes_create_listen(struct iw_cm_id *c - 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); -@@ -3278,7 +3278,7 @@ static void cm_event_connected(struct ne - 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, -@@ -3493,7 +3493,7 @@ static void cm_event_reset(struct nes_cm - - 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; -@@ -3529,7 +3529,7 @@ static void cm_event_mpa_req(struct nes_ - 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); - -@@ -3567,7 +3567,7 @@ static void cm_event_mpa_reject(struct n - 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 -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes.h linux-3.0.4/drivers/infiniband/hw/nes/nes.h ---- linux-3.0.4/drivers/infiniband/hw/nes/nes.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes.h 2011-08-23 21:47:55.000000000 -0400 -@@ -175,17 +175,17 @@ 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; -@@ -194,14 +194,14 @@ 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_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 u32 int_mod_timer_init; - extern u32 int_mod_cq_depth_256; -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1274,31 +1274,31 @@ static void nes_netdev_get_ethtool_stats - 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; -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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); - -@@ -1141,7 +1141,7 @@ static struct ib_qp *nes_create_qp(struc - 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) { -@@ -1470,7 +1470,7 @@ static int nes_destroy_qp(struct ib_qp * - struct iw_cm_event cm_event; - int ret; - -- atomic_inc(&sw_qps_destroyed); -+ atomic_inc_unchecked(&sw_qps_destroyed); - nesqp->destroyed = 1; - - /* Blow away the connection if it exists. */ -diff -urNp linux-3.0.4/drivers/infiniband/hw/qib/qib.h linux-3.0.4/drivers/infiniband/hw/qib/qib.h ---- linux-3.0.4/drivers/infiniband/hw/qib/qib.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/qib/qib.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/input/gameport/gameport.c linux-3.0.4/drivers/input/gameport/gameport.c ---- linux-3.0.4/drivers/input/gameport/gameport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/gameport/gameport.c 2011-08-23 21:47:55.000000000 -0400 -@@ -488,14 +488,14 @@ 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 -urNp linux-3.0.4/drivers/input/input.c linux-3.0.4/drivers/input/input.c ---- linux-3.0.4/drivers/input/input.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/input.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struc - */ - 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_d - 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 -urNp linux-3.0.4/drivers/input/joystick/sidewinder.c linux-3.0.4/drivers/input/joystick/sidewinder.c ---- linux-3.0.4/drivers/input/joystick/sidewinder.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/joystick/sidewinder.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -428,6 +429,8 @@ static int sw_read(struct sw *sw) - unsigned char buf[SW_LENGTH]; - int i; - -+ pax_track_stack(); -+ - i = sw_read_packet(sw->gameport, buf, sw->length, 0); - - if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */ -diff -urNp linux-3.0.4/drivers/input/joystick/xpad.c linux-3.0.4/drivers/input/joystick/xpad.c ---- linux-3.0.4/drivers/input/joystick/xpad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/joystick/xpad.c 2011-08-23 21:47:55.000000000 -0400 -@@ -689,7 +689,7 @@ static void xpad_led_set(struct led_clas - - 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; -@@ -702,7 +702,7 @@ static int xpad_led_probe(struct usb_xpa - 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 -urNp linux-3.0.4/drivers/input/mousedev.c linux-3.0.4/drivers/input/mousedev.c ---- linux-3.0.4/drivers/input/mousedev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/mousedev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file - - 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 -urNp linux-3.0.4/drivers/input/serio/serio.c linux-3.0.4/drivers/input/serio/serio.c ---- linux-3.0.4/drivers/input/serio/serio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/serio/serio.c 2011-08-23 21:47:55.000000000 -0400 -@@ -497,7 +497,7 @@ static void serio_release_port(struct de - */ - 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); - -@@ -508,7 +508,7 @@ static void serio_init_port(struct 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 -urNp linux-3.0.4/drivers/isdn/capi/capi.c linux-3.0.4/drivers/isdn/capi/capi.c ---- linux-3.0.4/drivers/isdn/capi/capi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/capi/capi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 *m - 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 cap - 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 -urNp linux-3.0.4/drivers/isdn/gigaset/common.c linux-3.0.4/drivers/isdn/gigaset/common.c ---- linux-3.0.4/drivers/isdn/gigaset/common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/common.c 2011-08-23 21:47:55.000000000 -0400 -@@ -723,7 +723,7 @@ struct cardstate *gigaset_initcs(struct - cs->commands_pending = 0; - cs->cur_at_seq = 0; - cs->gotfwver = -1; -- cs->open_count = 0; -+ local_set(&cs->open_count, 0); - cs->dev = NULL; - cs->tty = NULL; - cs->tty_dev = NULL; -diff -urNp linux-3.0.4/drivers/isdn/gigaset/gigaset.h linux-3.0.4/drivers/isdn/gigaset/gigaset.h ---- linux-3.0.4/drivers/isdn/gigaset/gigaset.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/gigaset.h 2011-08-23 21:47:55.000000000 -0400 -@@ -35,6 +35,7 @@ - #include <linux/tty_driver.h> - #include <linux/list.h> - #include <asm/atomic.h> -+#include <asm/local.h> - - #define GIG_VERSION {0, 5, 0, 0} - #define GIG_COMPAT {0, 4, 0, 0} -@@ -433,7 +434,7 @@ struct cardstate { - spinlock_t cmdlock; - unsigned curlen, cmdbytes; - -- unsigned open_count; -+ local_t open_count; - struct tty_struct *tty; - struct tasklet_struct if_wake_tasklet; - unsigned control_state; -diff -urNp linux-3.0.4/drivers/isdn/gigaset/interface.c linux-3.0.4/drivers/isdn/gigaset/interface.c ---- linux-3.0.4/drivers/isdn/gigaset/interface.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/interface.c 2011-08-23 21:47:55.000000000 -0400 -@@ -162,9 +162,7 @@ static int if_open(struct tty_struct *tt - } - tty->driver_data = cs; - -- ++cs->open_count; -- -- if (cs->open_count == 1) { -+ if (local_inc_return(&cs->open_count) == 1) { - spin_lock_irqsave(&cs->lock, flags); - cs->tty = tty; - spin_unlock_irqrestore(&cs->lock, flags); -@@ -192,10 +190,10 @@ static void if_close(struct tty_struct * - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else { -- if (!--cs->open_count) { -+ if (!local_dec_return(&cs->open_count)) { - spin_lock_irqsave(&cs->lock, flags); - cs->tty = NULL; - spin_unlock_irqrestore(&cs->lock, flags); -@@ -230,7 +228,7 @@ static int if_ioctl(struct tty_struct *t - if (!cs->connected) { - gig_dbg(DEBUG_IF, "not connected"); - retval = -ENODEV; -- } else if (!cs->open_count) -+ } else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else { - retval = 0; -@@ -360,7 +358,7 @@ static int if_write(struct tty_struct *t - retval = -ENODEV; - goto done; - } -- if (!cs->open_count) { -+ if (!local_read(&cs->open_count)) { - dev_warn(cs->dev, "%s: device not opened\n", __func__); - retval = -ENODEV; - goto done; -@@ -413,7 +411,7 @@ static int if_write_room(struct tty_stru - if (!cs->connected) { - gig_dbg(DEBUG_IF, "not connected"); - retval = -ENODEV; -- } else if (!cs->open_count) -+ } else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else if (cs->mstate != MS_LOCKED) { - dev_warn(cs->dev, "can't write to unlocked device\n"); -@@ -443,7 +441,7 @@ static int if_chars_in_buffer(struct tty - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else if (cs->mstate != MS_LOCKED) - dev_warn(cs->dev, "can't write to unlocked device\n"); -@@ -471,7 +469,7 @@ static void if_throttle(struct tty_struc - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else - gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); -@@ -495,7 +493,7 @@ static void if_unthrottle(struct tty_str - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else - gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); -@@ -526,7 +524,7 @@ static void if_set_termios(struct tty_st - goto out; - } - -- if (!cs->open_count) { -+ if (!local_read(&cs->open_count)) { - dev_warn(cs->dev, "%s: device not opened\n", __func__); - goto out; - } -diff -urNp linux-3.0.4/drivers/isdn/hardware/avm/b1.c linux-3.0.4/drivers/isdn/hardware/avm/b1.c ---- linux-3.0.4/drivers/isdn/hardware/avm/b1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/avm/b1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capilo - } - 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, capilo - } - 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 -urNp linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c 2011-08-23 21:48:14.000000000 -0400 -@@ -498,6 +498,7 @@ void capidtmf_recv_block (t_capidtmf_sta - byte goertzel_result_buffer[CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT]; - short windowed_sample_buffer[CAPIDTMF_RECV_WINDOWED_SAMPLES]; - -+ pax_track_stack(); - - if (p_state->recv.state & CAPIDTMF_RECV_STATE_DTMF_ACTIVE) - { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1055,6 +1055,8 @@ static int divacapi_connect_didd(void) - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -54,6 +54,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -160,6 +160,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h ---- linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -188,6 +188,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/message.c linux-3.0.4/drivers/isdn/hardware/eicon/message.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/message.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/message.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4886,6 +4886,8 @@ static void sig_ind(PLCI *plci) - dword d; - word w; - -+ pax_track_stack(); -+ - a = plci->adapter; - Id = ((word)plci->Id<<8)|a->Id; - PUT_WORD(&SS_Ind[4],0x0000); -@@ -7480,6 +7482,8 @@ static word add_b1(PLCI *plci, API_PARSE - word j, n, w; - dword d; - -+ pax_track_stack(); -+ - - for(i=0;i<8;i++) bp_parms[i].length = 0; - for(i=0;i<2;i++) global_config[i].length = 0; -@@ -7954,6 +7958,8 @@ static word add_b23(PLCI *plci, API_PARS - const byte llc3[] = {4,3,2,2,6,6,0}; - const byte header[] = {0,2,3,3,0,0,0}; - -+ pax_track_stack(); -+ - for(i=0;i<8;i++) bp_parms[i].length = 0; - for(i=0;i<6;i++) b2_config_parms[i].length = 0; - for(i=0;i<5;i++) b3_config_parms[i].length = 0; -@@ -14741,6 +14747,8 @@ static void group_optimization(DIVA_CAPI - word appl_number_group_type[MAX_APPL]; - PLCI *auxplci; - -+ pax_track_stack(); -+ - set_group_ind_mask (plci); /* all APPLs within this inc. call are allowed to dial in */ - - if(!a->group_optimization_enabled) -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -79,6 +79,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h ---- linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/isdn/i4l/isdn_common.c linux-3.0.4/drivers/isdn/i4l/isdn_common.c ---- linux-3.0.4/drivers/isdn/i4l/isdn_common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/i4l/isdn_common.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1286,6 +1286,8 @@ isdn_ioctl(struct file *file, uint cmd, - } iocpar; - void __user *argp = (void __user *)arg; - -+ pax_track_stack(); -+ - #define name iocpar.name - #define bname iocpar.bname - #define iocts iocpar.iocts -diff -urNp linux-3.0.4/drivers/isdn/icn/icn.c linux-3.0.4/drivers/isdn/icn/icn.c ---- linux-3.0.4/drivers/isdn/icn/icn.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/icn/icn.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char * buf, int len - 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 -urNp linux-3.0.4/drivers/lguest/core.c linux-3.0.4/drivers/lguest/core.c ---- linux-3.0.4/drivers/lguest/core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 <arch>_switcher.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 -urNp linux-3.0.4/drivers/lguest/x86/core.c linux-3.0.4/drivers/lguest/x86/core.c ---- linux-3.0.4/drivers/lguest/x86/core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/x86/core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 - * 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). -@@ -547,7 +553,7 @@ 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. -@@ -630,7 +636,7 @@ 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 -urNp linux-3.0.4/drivers/lguest/x86/switcher_32.S linux-3.0.4/drivers/lguest/x86/switcher_32.S ---- linux-3.0.4/drivers/lguest/x86/switcher_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/x86/switcher_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/md/dm.c linux-3.0.4/drivers/md/dm.c ---- linux-3.0.4/drivers/md/dm.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -164,9 +164,9 @@ 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 */ - -@@ -1842,8 +1842,8 @@ static struct mapped_device *alloc_dev(i - 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); - -@@ -1977,7 +1977,7 @@ 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); - } - -@@ -2553,18 +2553,18 @@ int dm_kobject_uevent(struct mapped_devi - - 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 -urNp linux-3.0.4/drivers/md/dm-ioctl.c linux-3.0.4/drivers/md/dm-ioctl.c ---- linux-3.0.4/drivers/md/dm-ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1551,7 +1551,7 @@ static int validate_params(uint cmd, str - 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 -urNp linux-3.0.4/drivers/md/dm-raid1.c linux-3.0.4/drivers/md/dm-raid1.c ---- linux-3.0.4/drivers/md/dm-raid1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-raid1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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(s - 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 - * 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(stru - 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 * - */ - 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)) -@@ -937,7 +937,7 @@ static int get_mirror(struct mirror_set - } - - 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; - -@@ -1347,7 +1347,7 @@ static void mirror_resume(struct dm_targ - */ - 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 -urNp linux-3.0.4/drivers/md/dm-stripe.c linux-3.0.4/drivers/md/dm-stripe.c ---- linux-3.0.4/drivers/md/dm-stripe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-stripe.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 { -@@ -192,7 +192,7 @@ static int stripe_ctr(struct dm_target * - kfree(sc); - return r; - } -- atomic_set(&(sc->stripe[i].error_count), 0); -+ atomic_set_unchecked(&(sc->stripe[i].error_count), 0); - } - - ti->private = sc; -@@ -314,7 +314,7 @@ static int stripe_status(struct dm_targe - 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'; -@@ -361,8 +361,8 @@ static int stripe_end_io(struct dm_targe - */ - 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 -urNp linux-3.0.4/drivers/md/dm-table.c linux-3.0.4/drivers/md/dm-table.c ---- linux-3.0.4/drivers/md/dm-table.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-table.c 2011-08-23 21:47:55.000000000 -0400 -@@ -390,7 +390,7 @@ static int device_area_is_invalid(struct - 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 -urNp linux-3.0.4/drivers/md/md.c linux-3.0.4/drivers/md/md.c ---- linux-3.0.4/drivers/md/md.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/md.c 2011-08-23 21:47:55.000000000 -0400 -@@ -226,10 +226,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev); - * 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(mddev_t *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - EXPORT_SYMBOL_GPL(md_new_event); -@@ -239,7 +239,7 @@ EXPORT_SYMBOL_GPL(md_new_event); - */ - static void md_new_event_inintr(mddev_t *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - -@@ -1457,7 +1457,7 @@ static int super_1_load(mdk_rdev_t *rdev - - 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; -@@ -1635,7 +1635,7 @@ static void super_1_sync(mddev_t *mddev, - 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); -@@ -2428,7 +2428,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_sho - static ssize_t - errors_show(mdk_rdev_t *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 -@@ -2437,7 +2437,7 @@ errors_store(mdk_rdev_t *rdev, const cha - 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; -@@ -2793,8 +2793,8 @@ void md_rdev_init(mdk_rdev_t *rdev) - rdev->last_read_error.tv_sec = 0; - rdev->last_read_error.tv_nsec = 0; - 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); -@@ -6415,7 +6415,7 @@ static int md_seq_show(struct seq_file * - - spin_unlock(&pers_lock); - seq_printf(seq, "\n"); -- mi->event = atomic_read(&md_event_count); -+ mi->event = atomic_read_unchecked(&md_event_count); - return 0; - } - if (v == (void*)2) { -@@ -6504,7 +6504,7 @@ static int md_seq_show(struct seq_file * - 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"); -@@ -6538,7 +6538,7 @@ static int md_seq_open(struct inode *ino - else { - struct seq_file *p = file->private_data; - p->private = mi; -- mi->event = atomic_read(&md_event_count); -+ mi->event = atomic_read_unchecked(&md_event_count); - } - return error; - } -@@ -6554,7 +6554,7 @@ static unsigned int mdstat_poll(struct f - /* always allow read */ - mask = POLLIN | POLLRDNORM; - -- if (mi->event != atomic_read(&md_event_count)) -+ if (mi->event != atomic_read_unchecked(&md_event_count)) - mask |= POLLERR | POLLPRI; - return mask; - } -@@ -6598,7 +6598,7 @@ static int is_mddev_idle(mddev_t *mddev, - 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 -urNp linux-3.0.4/drivers/md/md.h linux-3.0.4/drivers/md/md.h ---- linux-3.0.4/drivers/md/md.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/md.h 2011-08-23 21:47:55.000000000 -0400 -@@ -97,13 +97,13 @@ struct mdk_rdev_s - * 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. - */ -@@ -344,7 +344,7 @@ static inline void rdev_dec_pending(mdk_ - - 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 mdk_personality -diff -urNp linux-3.0.4/drivers/md/raid10.c linux-3.0.4/drivers/md/raid10.c ---- linux-3.0.4/drivers/md/raid10.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid10.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1186,7 +1186,7 @@ static void end_sync_read(struct bio *bi - if (test_bit(BIO_UPTODATE, &bio->bi_flags)) - set_bit(R10BIO_Uptodate, &r10_bio->state); - else { -- atomic_add(r10_bio->sectors, -+ atomic_add_unchecked(r10_bio->sectors, - &conf->mirrors[d].rdev->corrected_errors); - if (!test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery)) - md_error(r10_bio->mddev, -@@ -1394,7 +1394,7 @@ static void check_decay_read_errors(mdde - { - 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); - -@@ -1416,9 +1416,9 @@ static void check_decay_read_errors(mdde - * 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); - } - - /* -@@ -1448,8 +1448,8 @@ static void fix_read_error(conf_t *conf, - 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); - -@@ -1457,7 +1457,7 @@ static void fix_read_error(conf_t *conf, - "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); -@@ -1520,7 +1520,7 @@ static void fix_read_error(conf_t *conf, - test_bit(In_sync, &rdev->flags)) { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - if (sync_page_io(rdev, - r10_bio->devs[sl].addr + - sect, -diff -urNp linux-3.0.4/drivers/md/raid1.c linux-3.0.4/drivers/md/raid1.c ---- linux-3.0.4/drivers/md/raid1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1263,7 +1263,7 @@ static int fix_sync_read_error(r1bio_t * - rdev_dec_pending(rdev, mddev); - md_error(mddev, rdev); - } else -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - } - d = start; - while (d != r1_bio->read_disk) { -@@ -1492,7 +1492,7 @@ static void fix_read_error(conf_t *conf, - /* Well, this device is dead */ - md_error(mddev, rdev); - else { -- 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 -urNp linux-3.0.4/drivers/md/raid5.c linux-3.0.4/drivers/md/raid5.c ---- linux-3.0.4/drivers/md/raid5.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid5.c 2011-08-23 21:48:14.000000000 -0400 -@@ -550,7 +550,7 @@ static void ops_run_io(struct stripe_hea - bi->bi_next = NULL; - if ((rw & WRITE) && - test_bit(R5_ReWrite, &sh->dev[i].flags)) -- atomic_add(STRIPE_SECTORS, -+ atomic_add_unchecked(STRIPE_SECTORS, - &rdev->corrected_errors); - generic_make_request(bi); - } else { -@@ -1596,15 +1596,15 @@ static void raid5_end_read_request(struc - clear_bit(R5_ReadError, &sh->dev[i].flags); - clear_bit(R5_ReWrite, &sh->dev[i].flags); - } -- if (atomic_read(&conf->disks[i].rdev->read_errors)) -- atomic_set(&conf->disks[i].rdev->read_errors, 0); -+ if (atomic_read_unchecked(&conf->disks[i].rdev->read_errors)) -+ atomic_set_unchecked(&conf->disks[i].rdev->read_errors, 0); - } else { - const char *bdn = bdevname(conf->disks[i].rdev->bdev, b); - int retry = 0; - rdev = conf->disks[i].rdev; - - clear_bit(R5_UPTODATE, &sh->dev[i].flags); -- atomic_inc(&rdev->read_errors); -+ atomic_inc_unchecked(&rdev->read_errors); - if (conf->mddev->degraded >= conf->max_degraded) - printk_rl(KERN_WARNING - "md/raid:%s: read error not correctable " -@@ -1622,7 +1622,7 @@ static void raid5_end_read_request(struc - (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", -@@ -1945,6 +1945,7 @@ static sector_t compute_blocknr(struct s - sector_t r_sector; - struct stripe_head sh2; - -+ pax_track_stack(); - - chunk_offset = sector_div(new_sector, sectors_per_chunk); - stripe = new_sector; -diff -urNp linux-3.0.4/drivers/media/common/saa7146_hlp.c linux-3.0.4/drivers/media/common/saa7146_hlp.c ---- linux-3.0.4/drivers/media/common/saa7146_hlp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/common/saa7146_hlp.c 2011-08-23 21:48:14.000000000 -0400 -@@ -353,6 +353,8 @@ static void calculate_clipping_registers - - int x[32], y[32], w[32], h[32]; - -+ pax_track_stack(); -+ - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-08-23 21:48:14.000000000 -0400 -@@ -590,6 +590,8 @@ static int dvb_ca_en50221_read_data(stru - u8 buf[HOST_LINK_BUF_SIZE]; - int i; - -+ pax_track_stack(); -+ - dprintk("%s\n", __func__); - - /* check if we have space for a link buf in the rx_buffer */ -@@ -1285,6 +1287,8 @@ static ssize_t dvb_ca_en50221_io_write(s - unsigned long timeout; - int written; - -+ pax_track_stack(); -+ - dprintk("%s\n", __func__); - - /* Incoming packet has a 2 byte header. hdr[0] = slot_id, hdr[1] = connection_id */ -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h 2011-08-24 18:24:40.000000000 -0400 -@@ -68,12 +68,12 @@ struct dvb_demux_feed { - union { - struct dmx_ts_feed ts; - struct dmx_section_feed sec; -- } feed; -+ } __no_const feed; - - union { - dmx_ts_cb ts; - dmx_section_cb sec; -- } cb; -+ } __no_const cb; - - struct dvb_demux *demux; - void *priv; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c 2011-08-24 18:24:19.000000000 -0400 -@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapt - 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 -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c 2011-08-24 18:26:33.000000000 -0400 -@@ -1059,7 +1059,7 @@ static struct dib0070_config dib7070p_di - struct dib0700_adapter_state { - int (*set_param_save) (struct dvb_frontend *, - struct dvb_frontend_parameters *); --}; -+} __no_const; - - static int dib7070_set_param_override(struct dvb_frontend *fe, - struct dvb_frontend_parameters *fep) -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-08-23 21:48:14.000000000 -0400 -@@ -434,6 +434,8 @@ int dib0700_download_firmware(struct usb - if (!buf) - return -ENOMEM; - -+ pax_track_stack(); -+ - while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) { - deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n", - hx.addr, hx.len, hx.chk); -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h 2011-08-24 18:27:27.000000000 -0400 -@@ -97,7 +97,7 @@ - #define DIBUSB_IOCTL_CMD_DISABLE_STREAM 0x02 - - struct dibusb_state { -- struct dib_fe_xfer_ops ops; -+ dib_fe_xfer_ops_no_const ops; - int mt2060_present; - u8 tuner_addr; - }; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c 2011-08-24 18:27:45.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c 2011-08-23 21:48:14.000000000 -0400 -@@ -742,6 +742,7 @@ static int lme2510_download_firmware(str - usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), - 0x06, 0x80, 0x0200, 0x00, data, 0x0109, 1000); - -+ pax_track_stack(); - - data[0] = 0x8a; - len_in = 1; -@@ -764,6 +765,8 @@ static void lme_coldreset(struct usb_dev - int ret = 0, len_in; - u8 data[512] = {0}; - -+ pax_track_stack(); -+ - data[0] = 0x0a; - len_in = 1; - info("FRM Firmware Cold Reset"); -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/dib3000.h linux-3.0.4/drivers/media/dvb/frontends/dib3000.h ---- linux-3.0.4/drivers/media/dvb/frontends/dib3000.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/dib3000.h 2011-08-24 18:28:18.000000000 -0400 -@@ -40,10 +40,11 @@ struct dib_fe_xfer_ops - 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); - }; -+typedef struct dib_fe_xfer_ops __no_const dib_fe_xfer_ops_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, -- struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops); -+ struct i2c_adapter* i2c, dib_fe_xfer_ops_no_const *xfer_ops); - #else - static inline struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, - struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops) -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c ---- linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c 2011-08-24 18:28:42.000000000 -0400 -@@ -756,7 +756,7 @@ static int dib3000mb_tuner_pass_ctrl(str - static struct dvb_frontend_ops dib3000mb_ops; - - struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, -- struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops) -+ struct i2c_adapter* i2c, dib_fe_xfer_ops_no_const *xfer_ops) - { - struct dib3000_state* state = NULL; - -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c ---- linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1060,6 +1060,8 @@ static int mb86a16_set_fe(struct mb86a16 - int ret = -1; - int sync; - -+ pax_track_stack(); -+ - dprintk(verbose, MB86A16_INFO, 1, "freq=%d Mhz, symbrt=%d Ksps", state->frequency, state->srate); - - fcp = 3000; -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/or51211.c linux-3.0.4/drivers/media/dvb/frontends/or51211.c ---- linux-3.0.4/drivers/media/dvb/frontends/or51211.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/or51211.c 2011-08-23 21:48:14.000000000 -0400 -@@ -113,6 +113,8 @@ static int or51211_load_firmware (struct - u8 tudata[585]; - int i; - -+ pax_track_stack(); -+ - dprintk("Firmware is %zd bytes\n",fw->size); - - /* Get eprom data */ -diff -urNp linux-3.0.4/drivers/media/video/cx18/cx18-driver.c linux-3.0.4/drivers/media/video/cx18/cx18-driver.c ---- linux-3.0.4/drivers/media/video/cx18/cx18-driver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/cx18/cx18-driver.c 2011-08-23 21:48:14.000000000 -0400 -@@ -327,6 +327,8 @@ void cx18_read_eeprom(struct cx18 *cx, s - struct i2c_client c; - u8 eedata[256]; - -+ pax_track_stack(); -+ - memset(&c, 0, sizeof(c)); - strlcpy(c.name, "cx18 tveeprom tmp", sizeof(c.name)); - c.adapter = &cx->i2c_adap[0]; -diff -urNp linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c ---- linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,8 @@ static void cx23885_input_process_measur - bool handle = false; - struct ir_raw_event ir_core_event[64]; - -+ pax_track_stack(); -+ - do { - num = 0; - v4l2_subdev_call(dev->sd_ir, ir, rx_read, (u8 *) ir_core_event, -diff -urNp linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c ---- linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-08-23 21:48:14.000000000 -0400 -@@ -120,6 +120,8 @@ int pvr2_eeprom_analyze(struct pvr2_hdw - u8 *eeprom; - struct tveeprom tvdata; - -+ pax_track_stack(); -+ - memset(&tvdata,0,sizeof(tvdata)); - - eeprom = pvr2_eeprom_fetch(hdw); -diff -urNp linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c ---- linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -682,6 +682,8 @@ static int saa6752hs_init(struct v4l2_su - unsigned char localPAT[256]; - unsigned char localPMT[256]; - -+ pax_track_stack(); -+ - /* Set video format - must be done first as it resets other settings */ - set_reg8(client, 0x41, h->video_format); - -diff -urNp linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c ---- linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -88,6 +88,8 @@ int saa7164_irq_dequeue(struct saa7164_d - u8 tmp[512]; - dprintk(DBGLVL_CMD, "%s()\n", __func__); - -+ pax_track_stack(); -+ - /* While any outstand message on the bus exists... */ - do { - -@@ -141,6 +143,8 @@ int saa7164_cmd_dequeue(struct saa7164_d - u8 tmp[512]; - dprintk(DBGLVL_CMD, "%s()\n", __func__); - -+ pax_track_stack(); -+ - while (loop) { - - struct tmComResInfo tRsp = { 0, 0, 0, 0, 0, 0 }; -diff -urNp linux-3.0.4/drivers/media/video/timblogiw.c linux-3.0.4/drivers/media/video/timblogiw.c ---- linux-3.0.4/drivers/media/video/timblogiw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/timblogiw.c 2011-08-24 18:29:20.000000000 -0400 -@@ -745,7 +745,7 @@ static int timblogiw_mmap(struct file *f - - /* 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, -diff -urNp linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c ---- linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c 2011-08-23 21:48:14.000000000 -0400 -@@ -707,6 +707,8 @@ static enum parse_state usbvision_parse_ - unsigned char rv, gv, bv; - static unsigned char *Y, *U, *V; - -+ pax_track_stack(); -+ - frame = usbvision->cur_frame; - image_size = frame->frmwidth * frame->frmheight; - if ((frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || -diff -urNp linux-3.0.4/drivers/media/video/videobuf-dma-sg.c linux-3.0.4/drivers/media/video/videobuf-dma-sg.c ---- linux-3.0.4/drivers/media/video/videobuf-dma-sg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/videobuf-dma-sg.c 2011-08-23 21:48:14.000000000 -0400 -@@ -606,6 +606,8 @@ void *videobuf_sg_alloc(size_t size) - { - struct videobuf_queue q; - -+ pax_track_stack(); -+ - /* Required to make generic handler to call __videobuf_alloc */ - q.int_ops = &sg_ops; - -diff -urNp linux-3.0.4/drivers/message/fusion/mptbase.c linux-3.0.4/drivers/message/fusion/mptbase.c ---- linux-3.0.4/drivers/message/fusion/mptbase.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptbase.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6681,8 +6681,13 @@ static int mpt_iocinfo_proc_show(struct - 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 -urNp linux-3.0.4/drivers/message/fusion/mptsas.c linux-3.0.4/drivers/message/fusion/mptsas.c ---- linux-3.0.4/drivers/message/fusion/mptsas.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptsas.c 2011-08-23 21:47:55.000000000 -0400 -@@ -439,6 +439,23 @@ mptsas_is_end_device(struct mptsas_devin - 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) -@@ -477,23 +494,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *p - 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 -urNp linux-3.0.4/drivers/message/fusion/mptscsih.c linux-3.0.4/drivers/message/fusion/mptscsih.c ---- linux-3.0.4/drivers/message/fusion/mptscsih.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptscsih.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1268,15 +1268,16 @@ 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 -urNp linux-3.0.4/drivers/message/i2o/i2o_config.c linux-3.0.4/drivers/message/i2o/i2o_config.c ---- linux-3.0.4/drivers/message/i2o/i2o_config.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/i2o_config.c 2011-08-23 21:48:14.000000000 -0400 -@@ -781,6 +781,8 @@ static int i2o_cfg_passthru(unsigned lon - struct i2o_message *msg; - unsigned int iop; - -+ pax_track_stack(); -+ - if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) - return -EFAULT; - -diff -urNp linux-3.0.4/drivers/message/i2o/i2o_proc.c linux-3.0.4/drivers/message/i2o/i2o_proc.c ---- linux-3.0.4/drivers/message/i2o/i2o_proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/i2o_proc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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_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(s - - 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(str - 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(str - } - - 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 - 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 -urNp linux-3.0.4/drivers/message/i2o/iop.c linux-3.0.4/drivers/message/i2o/iop.c ---- linux-3.0.4/drivers/message/i2o/iop.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/iop.c 2011-08-23 21:47:55.000000000 -0400 -@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_contro - - 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(voi - - #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 -urNp linux-3.0.4/drivers/mfd/abx500-core.c linux-3.0.4/drivers/mfd/abx500-core.c ---- linux-3.0.4/drivers/mfd/abx500-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/abx500-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -14,7 +14,7 @@ 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 -urNp linux-3.0.4/drivers/mfd/janz-cmodio.c linux-3.0.4/drivers/mfd/janz-cmodio.c ---- linux-3.0.4/drivers/mfd/janz-cmodio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/janz-cmodio.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/mfd/wm8350-i2c.c linux-3.0.4/drivers/mfd/wm8350-i2c.c ---- linux-3.0.4/drivers/mfd/wm8350-i2c.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/wm8350-i2c.c 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,8 @@ static int wm8350_i2c_write_device(struc - u8 msg[(WM8350_MAX_REGISTER << 1) + 1]; - int ret; - -+ pax_track_stack(); -+ - if (bytes > ((WM8350_MAX_REGISTER << 1) + 1)) - return -EINVAL; - -diff -urNp linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c ---- linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c 2011-08-23 21:47:55.000000000 -0400 -@@ -435,7 +435,7 @@ static irqreturn_t lis302dl_interrupt(in - * the lid is closed. This leads to interrupts as soon as a little move - * is done. - */ -- atomic_inc(&lis3_dev.count); -+ atomic_inc_unchecked(&lis3_dev.count); - - wake_up_interruptible(&lis3_dev.misc_wait); - kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN); -@@ -518,7 +518,7 @@ static int lis3lv02d_misc_open(struct in - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - -- atomic_set(&lis3_dev.count, 0); -+ atomic_set_unchecked(&lis3_dev.count, 0); - return 0; - } - -@@ -545,7 +545,7 @@ static ssize_t lis3lv02d_misc_read(struc - add_wait_queue(&lis3_dev.misc_wait, &wait); - while (true) { - set_current_state(TASK_INTERRUPTIBLE); -- data = atomic_xchg(&lis3_dev.count, 0); -+ data = atomic_xchg_unchecked(&lis3_dev.count, 0); - if (data) - break; - -@@ -583,7 +583,7 @@ out: - static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) - { - poll_wait(file, &lis3_dev.misc_wait, wait); -- if (atomic_read(&lis3_dev.count)) -+ if (atomic_read_unchecked(&lis3_dev.count)) - return POLLIN | POLLRDNORM; - return 0; - } -diff -urNp linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h ---- linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h 2011-08-23 21:47:55.000000000 -0400 -@@ -265,7 +265,7 @@ 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 -urNp linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c ---- linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op - 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 -urNp linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c ---- linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 se - - 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 -urNp linux-3.0.4/drivers/misc/sgi-gru/grutables.h linux-3.0.4/drivers/misc/sgi-gru/grutables.h ---- linux-3.0.4/drivers/misc/sgi-gru/grutables.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/grutables.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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_t copy_gpa; -- atomic_long_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 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_unchecked_t copy_gpa; -+ atomic_long_unchecked_t read_gpa; -+ -+ 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 - 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_st - - #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 -urNp linux-3.0.4/drivers/misc/sgi-xp/xp.h linux-3.0.4/drivers/misc/sgi-xp/xp.h ---- linux-3.0.4/drivers/misc/sgi-xp/xp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-xp/xp.h 2011-08-23 21:47:55.000000000 -0400 -@@ -289,7 +289,7 @@ 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 -urNp linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c ---- linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c 2011-08-23 21:48:14.000000000 -0400 -@@ -757,6 +757,8 @@ static int chip_ready (struct map_info * - struct cfi_pri_intelext *cfip = cfi->cmdset_priv; - unsigned long timeo = jiffies + HZ; - -+ pax_track_stack(); -+ - /* Prevent setting state FL_SYNCING for chip in suspended state. */ - if (mode == FL_SYNCING && chip->oldstate != FL_READY) - goto sleep; -@@ -1653,6 +1655,8 @@ static int __xipram do_write_buffer(stru - unsigned long initial_adr; - int initial_len = len; - -+ pax_track_stack(); -+ - wbufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; - adr += chip->start; - initial_adr = adr; -@@ -1871,6 +1875,8 @@ static int __xipram do_erase_oneblock(st - int retries = 3; - int ret; - -+ pax_track_stack(); -+ - adr += chip->start; - - retry: -diff -urNp linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c ---- linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c 2011-08-23 21:48:14.000000000 -0400 -@@ -255,6 +255,8 @@ static inline int do_read_onechip(struct - unsigned long cmd_addr; - struct cfi_private *cfi = map->fldrv_priv; - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Ensure cmd read/writes are aligned. */ -@@ -429,6 +431,8 @@ static inline int do_write_buffer(struct - DECLARE_WAITQUEUE(wait, current); - int wbufsize, z; - -+ pax_track_stack(); -+ - /* M58LW064A requires bus alignment for buffer wriets -- saw */ - if (adr & (map_bankwidth(map)-1)) - return -EINVAL; -@@ -743,6 +747,8 @@ static inline int do_erase_oneblock(stru - DECLARE_WAITQUEUE(wait, current); - int ret = 0; - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -@@ -1048,6 +1054,8 @@ static inline int do_lock_oneblock(struc - unsigned long timeo = jiffies + HZ; - DECLARE_WAITQUEUE(wait, current); - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -@@ -1197,6 +1205,8 @@ static inline int do_unlock_oneblock(str - unsigned long timeo = jiffies + HZ; - DECLARE_WAITQUEUE(wait, current); - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -diff -urNp linux-3.0.4/drivers/mtd/devices/doc2000.c linux-3.0.4/drivers/mtd/devices/doc2000.c ---- linux-3.0.4/drivers/mtd/devices/doc2000.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/devices/doc2000.c 2011-08-23 21:47:55.000000000 -0400 -@@ -776,7 +776,7 @@ static int doc_write(struct mtd_info *mt - - /* 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 -urNp linux-3.0.4/drivers/mtd/devices/doc2001.c linux-3.0.4/drivers/mtd/devices/doc2001.c ---- linux-3.0.4/drivers/mtd/devices/doc2001.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/devices/doc2001.c 2011-08-23 21:47:55.000000000 -0400 -@@ -393,7 +393,7 @@ static int doc_read (struct mtd_info *mt - struct Nand *mychip = &this->chips[from >> (this->chipshift)]; - - /* Don't allow read past end of device */ -- if (from >= this->totlen) -+ if (from >= this->totlen || !len) - return -EINVAL; - - /* Don't allow a single read to cross a 512-byte block boundary */ -diff -urNp linux-3.0.4/drivers/mtd/ftl.c linux-3.0.4/drivers/mtd/ftl.c ---- linux-3.0.4/drivers/mtd/ftl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/ftl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -474,6 +474,8 @@ static int copy_erase_unit(partition_t * - loff_t offset; - uint16_t srcunitswap = cpu_to_le16(srcunit); - -+ pax_track_stack(); -+ - eun = &part->EUNInfo[srcunit]; - xfer = &part->XferInfo[xferunit]; - DEBUG(2, "ftl_cs: copying block 0x%x to 0x%x\n", -diff -urNp linux-3.0.4/drivers/mtd/inftlcore.c linux-3.0.4/drivers/mtd/inftlcore.c ---- linux-3.0.4/drivers/mtd/inftlcore.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/inftlcore.c 2011-08-23 21:48:14.000000000 -0400 -@@ -259,6 +259,8 @@ static u16 INFTL_foldchain(struct INFTLr - struct inftl_oob oob; - size_t retlen; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," - "pending=%d)\n", inftl, thisVUC, pendingblock); - -diff -urNp linux-3.0.4/drivers/mtd/inftlmount.c linux-3.0.4/drivers/mtd/inftlmount.c ---- linux-3.0.4/drivers/mtd/inftlmount.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/inftlmount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,8 @@ static int find_boot_record(struct INFTL - struct INFTLPartition *ip; - size_t retlen; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl); - - /* -diff -urNp linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c ---- linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c 2011-08-23 21:48:14.000000000 -0400 -@@ -106,6 +106,8 @@ static int lpddr_pfow_present(struct map - { - map_word pfow_val[4]; - -+ pax_track_stack(); -+ - /* Check identification string */ - pfow_val[0] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_P); - pfow_val[1] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_F); -diff -urNp linux-3.0.4/drivers/mtd/mtdchar.c linux-3.0.4/drivers/mtd/mtdchar.c ---- linux-3.0.4/drivers/mtd/mtdchar.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/mtdchar.c 2011-08-23 21:48:14.000000000 -0400 -@@ -553,6 +553,8 @@ static int mtd_ioctl(struct file *file, - u_long size; - struct mtd_info_user info; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n"); - - size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; -diff -urNp linux-3.0.4/drivers/mtd/nand/denali.c linux-3.0.4/drivers/mtd/nand/denali.c ---- linux-3.0.4/drivers/mtd/nand/denali.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nand/denali.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/mtd/nftlcore.c linux-3.0.4/drivers/mtd/nftlcore.c ---- linux-3.0.4/drivers/mtd/nftlcore.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nftlcore.c 2011-08-23 21:48:14.000000000 -0400 -@@ -264,6 +264,8 @@ static u16 NFTL_foldchain (struct NFTLre - int inplace = 1; - size_t retlen; - -+ pax_track_stack(); -+ - memset(BlockMap, 0xff, sizeof(BlockMap)); - memset(BlockFreeFound, 0, sizeof(BlockFreeFound)); - -diff -urNp linux-3.0.4/drivers/mtd/nftlmount.c linux-3.0.4/drivers/mtd/nftlmount.c ---- linux-3.0.4/drivers/mtd/nftlmount.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nftlmount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -45,6 +46,8 @@ static int find_boot_record(struct NFTLr - struct mtd_info *mtd = nftl->mbd.mtd; - unsigned int i; - -+ pax_track_stack(); -+ - /* Assume logical EraseSize == physical erasesize for starting the scan. - We'll sort it out later if we find a MediaHeader which says otherwise */ - /* Actually, we won't. The new DiskOnChip driver has already scanned -diff -urNp linux-3.0.4/drivers/mtd/ubi/build.c linux-3.0.4/drivers/mtd/ubi/build.c ---- linux-3.0.4/drivers/mtd/ubi/build.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/ubi/build.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1287,7 +1287,7 @@ module_exit(ubi_exit); - static int __init bytes_str_to_int(const char *str) - { - char *endp; -- unsigned long result; -+ unsigned long result, scale = 1; - - result = simple_strtoul(str, &endp, 0); - if (str == endp || result >= INT_MAX) { -@@ -1298,11 +1298,11 @@ static int __init bytes_str_to_int(const - - switch (*endp) { - case 'G': -- result *= 1024; -+ scale *= 1024; - case 'M': -- result *= 1024; -+ scale *= 1024; - case 'K': -- result *= 1024; -+ scale *= 1024; - if (endp[1] == 'i' && endp[2] == 'B') - endp += 2; - case '\0': -@@ -1313,7 +1313,13 @@ static int __init bytes_str_to_int(const - return -EINVAL; - } - -- return result; -+ if ((intoverflow_t)result*scale >= INT_MAX) { -+ printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n", -+ str); -+ return -EINVAL; -+ } -+ -+ return result*scale; - } - - /** -diff -urNp linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c ---- linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,7 +48,21 @@ static void bfa_ioc_ct_sync_ack(struct b - static bool bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc); - static enum bfa_status bfa_ioc_ct_pll_init(void __iomem *rb, bool fcmode); - --static struct bfa_ioc_hwif nw_hwif_ct; -+static struct bfa_ioc_hwif nw_hwif_ct = { -+ .ioc_pll_init = bfa_ioc_ct_pll_init, -+ .ioc_firmware_lock = bfa_ioc_ct_firmware_lock, -+ .ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock, -+ .ioc_reg_init = bfa_ioc_ct_reg_init, -+ .ioc_map_port = bfa_ioc_ct_map_port, -+ .ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set, -+ .ioc_notify_fail = bfa_ioc_ct_notify_fail, -+ .ioc_ownership_reset = bfa_ioc_ct_ownership_reset, -+ .ioc_sync_start = bfa_ioc_ct_sync_start, -+ .ioc_sync_join = bfa_ioc_ct_sync_join, -+ .ioc_sync_leave = bfa_ioc_ct_sync_leave, -+ .ioc_sync_ack = bfa_ioc_ct_sync_ack, -+ .ioc_sync_complete = bfa_ioc_ct_sync_complete -+}; - - /** - * Called from bfa_ioc_attach() to map asic specific calls. -@@ -56,20 +70,6 @@ static struct bfa_ioc_hwif nw_hwif_ct; - void - bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc) - { -- nw_hwif_ct.ioc_pll_init = bfa_ioc_ct_pll_init; -- nw_hwif_ct.ioc_firmware_lock = bfa_ioc_ct_firmware_lock; -- nw_hwif_ct.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock; -- nw_hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init; -- nw_hwif_ct.ioc_map_port = bfa_ioc_ct_map_port; -- nw_hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set; -- nw_hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail; -- nw_hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset; -- nw_hwif_ct.ioc_sync_start = bfa_ioc_ct_sync_start; -- nw_hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join; -- nw_hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave; -- nw_hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack; -- nw_hwif_ct.ioc_sync_complete = bfa_ioc_ct_sync_complete; -- - ioc->ioc_hwif = &nw_hwif_ct; - } - -diff -urNp linux-3.0.4/drivers/net/bna/bnad.c linux-3.0.4/drivers/net/bna/bnad.c ---- linux-3.0.4/drivers/net/bna/bnad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bna/bnad.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1681,7 +1681,14 @@ bnad_setup_tx(struct bnad *bnad, uint tx - struct bna_intr_info *intr_info = - &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; - struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; -- struct bna_tx_event_cbfn tx_cbfn; -+ static struct bna_tx_event_cbfn tx_cbfn = { -+ /* Initialize the tx event handlers */ -+ .tcb_setup_cbfn = bnad_cb_tcb_setup, -+ .tcb_destroy_cbfn = bnad_cb_tcb_destroy, -+ .tx_stall_cbfn = bnad_cb_tx_stall, -+ .tx_resume_cbfn = bnad_cb_tx_resume, -+ .tx_cleanup_cbfn = bnad_cb_tx_cleanup -+ }; - struct bna_tx *tx; - unsigned long flags; - -@@ -1690,13 +1697,6 @@ bnad_setup_tx(struct bnad *bnad, uint tx - tx_config->txq_depth = bnad->txq_depth; - tx_config->tx_type = BNA_TX_T_REGULAR; - -- /* Initialize the tx event handlers */ -- tx_cbfn.tcb_setup_cbfn = bnad_cb_tcb_setup; -- tx_cbfn.tcb_destroy_cbfn = bnad_cb_tcb_destroy; -- tx_cbfn.tx_stall_cbfn = bnad_cb_tx_stall; -- tx_cbfn.tx_resume_cbfn = bnad_cb_tx_resume; -- tx_cbfn.tx_cleanup_cbfn = bnad_cb_tx_cleanup; -- - /* Get BNA's resource requirement for one tx object */ - spin_lock_irqsave(&bnad->bna_lock, flags); - bna_tx_res_req(bnad->num_txq_per_tx, -@@ -1827,21 +1827,21 @@ bnad_setup_rx(struct bnad *bnad, uint rx - struct bna_intr_info *intr_info = - &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; - struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; -- struct bna_rx_event_cbfn rx_cbfn; -+ static struct bna_rx_event_cbfn rx_cbfn = { -+ /* Initialize the Rx event handlers */ -+ .rcb_setup_cbfn = bnad_cb_rcb_setup, -+ .rcb_destroy_cbfn = bnad_cb_rcb_destroy, -+ .ccb_setup_cbfn = bnad_cb_ccb_setup, -+ .ccb_destroy_cbfn = bnad_cb_ccb_destroy, -+ .rx_cleanup_cbfn = bnad_cb_rx_cleanup, -+ .rx_post_cbfn = bnad_cb_rx_post -+ }; - struct bna_rx *rx; - unsigned long flags; - - /* Initialize the Rx object configuration */ - bnad_init_rx_config(bnad, rx_config); - -- /* Initialize the Rx event handlers */ -- rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup; -- rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy; -- rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup; -- rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy; -- rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup; -- rx_cbfn.rx_post_cbfn = bnad_cb_rx_post; -- - /* Get BNA's resource requirement for one Rx object */ - spin_lock_irqsave(&bnad->bna_lock, flags); - bna_rx_res_req(rx_config, res_info); -diff -urNp linux-3.0.4/drivers/net/bnx2.c linux-3.0.4/drivers/net/bnx2.c ---- linux-3.0.4/drivers/net/bnx2.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bnx2.c 2011-08-23 21:48:14.000000000 -0400 -@@ -5828,6 +5828,8 @@ bnx2_test_nvram(struct bnx2 *bp) - int rc = 0; - u32 magic, csum; - -+ pax_track_stack(); -+ - if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0) - goto test_nvram_done; - -diff -urNp linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c ---- linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1705,6 +1705,8 @@ static int bnx2x_test_nvram(struct bnx2x - int i, rc; - u32 magic, crc; - -+ pax_track_stack(); -+ - if (BP_NOMCP(bp)) - return 0; - -diff -urNp linux-3.0.4/drivers/net/cxgb3/l2t.h linux-3.0.4/drivers/net/cxgb3/l2t.h ---- linux-3.0.4/drivers/net/cxgb3/l2t.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb3/l2t.h 2011-08-23 21:47:55.000000000 -0400 -@@ -86,7 +86,7 @@ typedef void (*arp_failure_handler_func) - */ - 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 -urNp linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c ---- linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3396,6 +3396,8 @@ static int __devinit enable_msix(struct - unsigned int nchan = adap->params.nports; - struct msix_entry entries[MAX_INGQ + 1]; - -+ pax_track_stack(); -+ - for (i = 0; i < ARRAY_SIZE(entries); ++i) - entries[i].entry = i; - -diff -urNp linux-3.0.4/drivers/net/cxgb4/t4_hw.c linux-3.0.4/drivers/net/cxgb4/t4_hw.c ---- linux-3.0.4/drivers/net/cxgb4/t4_hw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb4/t4_hw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -362,6 +362,8 @@ static int get_vpd_params(struct adapter - u8 vpd[VPD_LEN], csum; - unsigned int vpdr_len, kw_offset, id_len; - -+ pax_track_stack(); -+ - ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(vpd), vpd); - if (ret < 0) - return ret; -diff -urNp linux-3.0.4/drivers/net/e1000e/82571.c linux-3.0.4/drivers/net/e1000e/82571.c ---- linux-3.0.4/drivers/net/e1000e/82571.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/82571.c 2011-08-23 21:47:55.000000000 -0400 -@@ -239,7 +239,7 @@ static s32 e1000_init_mac_params_82571(s - { - struct e1000_hw *hw = &adapter->hw; - struct e1000_mac_info *mac = &hw->mac; -- struct e1000_mac_operations *func = &mac->ops; -+ e1000_mac_operations_no_const *func = &mac->ops; - u32 swsm = 0; - u32 swsm2 = 0; - bool force_clear_smbi = false; -diff -urNp linux-3.0.4/drivers/net/e1000e/es2lan.c linux-3.0.4/drivers/net/e1000e/es2lan.c ---- linux-3.0.4/drivers/net/e1000e/es2lan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/es2lan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -205,7 +205,7 @@ static s32 e1000_init_mac_params_80003es - { - struct e1000_hw *hw = &adapter->hw; - struct e1000_mac_info *mac = &hw->mac; -- struct e1000_mac_operations *func = &mac->ops; -+ e1000_mac_operations_no_const *func = &mac->ops; - - /* Set media type */ - switch (adapter->pdev->device) { -diff -urNp linux-3.0.4/drivers/net/e1000e/hw.h linux-3.0.4/drivers/net/e1000e/hw.h ---- linux-3.0.4/drivers/net/e1000e/hw.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -776,6 +776,7 @@ struct e1000_mac_operations { - void (*write_vfta)(struct e1000_hw *, u32, u32); - s32 (*read_mac_addr)(struct e1000_hw *); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - /* Function pointers for the PHY. */ - struct e1000_phy_operations { -@@ -799,6 +800,7 @@ 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 { -@@ -810,9 +812,10 @@ 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]; - -@@ -853,7 +856,7 @@ struct e1000_mac_info { - }; - - struct e1000_phy_info { -- struct e1000_phy_operations ops; -+ e1000_phy_operations_no_const ops; - - enum e1000_phy_type type; - -@@ -887,7 +890,7 @@ 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 -urNp linux-3.0.4/drivers/net/hamradio/6pack.c linux-3.0.4/drivers/net/hamradio/6pack.c ---- linux-3.0.4/drivers/net/hamradio/6pack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/hamradio/6pack.c 2011-08-23 21:48:14.000000000 -0400 -@@ -463,6 +463,8 @@ static void sixpack_receive_buf(struct t - unsigned char buf[512]; - int count1; - -+ pax_track_stack(); -+ - if (!count) - return; - -diff -urNp linux-3.0.4/drivers/net/igb/e1000_hw.h linux-3.0.4/drivers/net/igb/e1000_hw.h ---- linux-3.0.4/drivers/net/igb/e1000_hw.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/igb/e1000_hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/net/igbvf/vf.h linux-3.0.4/drivers/net/igbvf/vf.h ---- linux-3.0.4/drivers/net/igbvf/vf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/igbvf/vf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/net/ixgb/ixgb_main.c linux-3.0.4/drivers/net/ixgb/ixgb_main.c ---- linux-3.0.4/drivers/net/ixgb/ixgb_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgb/ixgb_main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1070,6 +1070,8 @@ ixgb_set_multi(struct net_device *netdev - u32 rctl; - int i; - -+ pax_track_stack(); -+ - /* Check for Promiscuous and All Multicast modes */ - - rctl = IXGB_READ_REG(hw, RCTL); -diff -urNp linux-3.0.4/drivers/net/ixgb/ixgb_param.c linux-3.0.4/drivers/net/ixgb/ixgb_param.c ---- linux-3.0.4/drivers/net/ixgb/ixgb_param.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgb/ixgb_param.c 2011-08-23 21:48:14.000000000 -0400 -@@ -261,6 +261,9 @@ void __devinit - ixgb_check_options(struct ixgb_adapter *adapter) - { - int bd = adapter->bd_number; -+ -+ pax_track_stack(); -+ - if (bd >= IXGB_MAX_NIC) { - pr_notice("Warning: no configuration for board #%i\n", bd); - pr_notice("Using defaults for all values\n"); -diff -urNp linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h ---- linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h 2011-08-23 21:47:55.000000000 -0400 -@@ -2584,6 +2584,7 @@ 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 *); -@@ -2639,6 +2640,7 @@ struct ixgbe_mac_operations { - /* Flow Control */ - s32 (*fc_enable)(struct ixgbe_hw *, s32); - }; -+typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; - - struct ixgbe_phy_operations { - s32 (*identify)(struct ixgbe_hw *); -@@ -2658,9 +2660,10 @@ 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; -@@ -2670,7 +2673,7 @@ 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[IXGBE_ETH_LENGTH_OF_ADDRESS]; - u8 perm_addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; -@@ -2698,7 +2701,7 @@ 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; -@@ -2726,6 +2729,7 @@ 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; -@@ -2737,7 +2741,7 @@ 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 -urNp linux-3.0.4/drivers/net/ixgbevf/vf.h linux-3.0.4/drivers/net/ixgbevf/vf.h ---- linux-3.0.4/drivers/net/ixgbevf/vf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgbevf/vf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/net/ksz884x.c linux-3.0.4/drivers/net/ksz884x.c ---- linux-3.0.4/drivers/net/ksz884x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ksz884x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6534,6 +6534,8 @@ static void netdev_get_ethtool_stats(str - int rc; - u64 counter[TOTAL_PORT_COUNTER_NUM]; - -+ pax_track_stack(); -+ - mutex_lock(&hw_priv->lock); - n = SWITCH_PORT_NUM; - for (i = 0, p = port->first_port; i < port->mib_port_cnt; i++, p++) { -diff -urNp linux-3.0.4/drivers/net/mlx4/main.c linux-3.0.4/drivers/net/mlx4/main.c ---- linux-3.0.4/drivers/net/mlx4/main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/mlx4/main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -40,6 +40,7 @@ - #include <linux/dma-mapping.h> - #include <linux/slab.h> - #include <linux/io-mapping.h> -+#include <linux/sched.h> - - #include <linux/mlx4/device.h> - #include <linux/mlx4/doorbell.h> -@@ -764,6 +765,8 @@ static int mlx4_init_hca(struct mlx4_dev - u64 icm_size; - int err; - -+ pax_track_stack(); -+ - err = mlx4_QUERY_FW(dev); - if (err) { - if (err == -EACCES) -diff -urNp linux-3.0.4/drivers/net/niu.c linux-3.0.4/drivers/net/niu.c ---- linux-3.0.4/drivers/net/niu.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/net/niu.c 2011-08-23 21:48:14.000000000 -0400 -@@ -9056,6 +9056,8 @@ static void __devinit niu_try_msix(struc - int i, num_irqs, err; - u8 first_ldg; - -+ pax_track_stack(); -+ - first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; - for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) - ldg_num_map[i] = first_ldg + i; -diff -urNp linux-3.0.4/drivers/net/pcnet32.c linux-3.0.4/drivers/net/pcnet32.c ---- linux-3.0.4/drivers/net/pcnet32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/pcnet32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -82,7 +82,7 @@ static int cards_found; - /* - * VLB I/O addresses - */ --static unsigned int pcnet32_portlist[] __initdata = -+static unsigned int pcnet32_portlist[] __devinitdata = - { 0x300, 0x320, 0x340, 0x360, 0 }; - - static int pcnet32_debug; -@@ -270,7 +270,7 @@ struct pcnet32_private { - struct sk_buff **rx_skbuff; - dma_addr_t *tx_dma_addr; - dma_addr_t *rx_dma_addr; -- struct pcnet32_access a; -+ struct pcnet32_access *a; - spinlock_t lock; /* Guard lock */ - unsigned int cur_rx, cur_tx; /* The next free ring entry */ - unsigned int rx_ring_size; /* current rx ring size */ -@@ -460,9 +460,9 @@ static void pcnet32_netif_start(struct n - u16 val; - - netif_wake_queue(dev); -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val &= 0x00ff; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - napi_enable(&lp->napi); - } - -@@ -730,7 +730,7 @@ static u32 pcnet32_get_link(struct net_d - r = mii_link_ok(&lp->mii_if); - } else if (lp->chip_version >= PCNET32_79C970A) { - ulong ioaddr = dev->base_addr; /* card base I/O address */ -- r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); -+ r = (lp->a->read_bcr(ioaddr, 4) != 0xc0); - } else { /* can not detect link on really old chips */ - r = 1; - } -@@ -792,7 +792,7 @@ static int pcnet32_set_ringparam(struct - pcnet32_netif_stop(dev); - - spin_lock_irqsave(&lp->lock, flags); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ - - size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); - -@@ -868,7 +868,7 @@ static void pcnet32_ethtool_test(struct - static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) - { - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; /* access to registers */ -+ struct pcnet32_access *a = lp->a; /* access to registers */ - ulong ioaddr = dev->base_addr; /* card base I/O address */ - struct sk_buff *skb; /* sk buff */ - int x, i; /* counters */ -@@ -888,21 +888,21 @@ static int pcnet32_loopback_test(struct - pcnet32_netif_stop(dev); - - spin_lock_irqsave(&lp->lock, flags); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ - - numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size)); - - /* Reset the PCNET32 */ -- lp->a.reset(ioaddr); -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->reset(ioaddr); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ - - /* switch pcnet32 to 32bit mode */ -- lp->a.write_bcr(ioaddr, 20, 2); -+ lp->a->write_bcr(ioaddr, 20, 2); - - /* purge & init rings but don't actually restart */ - pcnet32_restart(dev, 0x0000); - -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ - - /* Initialize Transmit buffers. */ - size = data_len + 15; -@@ -947,10 +947,10 @@ static int pcnet32_loopback_test(struct - - /* set int loopback in CSR15 */ - x = a->read_csr(ioaddr, CSR15) & 0xfffc; -- lp->a.write_csr(ioaddr, CSR15, x | 0x0044); -+ lp->a->write_csr(ioaddr, CSR15, x | 0x0044); - - teststatus = cpu_to_le16(0x8000); -- lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ - - /* Check status of descriptors */ - for (x = 0; x < numbuffs; x++) { -@@ -969,7 +969,7 @@ static int pcnet32_loopback_test(struct - } - } - -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ - wmb(); - if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { - netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n"); -@@ -1015,7 +1015,7 @@ clean_up: - pcnet32_restart(dev, CSR0_NORMAL); - } else { - pcnet32_purge_rx_ring(dev); -- lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ -+ lp->a->write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ - } - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -1026,7 +1026,7 @@ static int pcnet32_set_phys_id(struct ne - enum ethtool_phys_id_state state) - { - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - unsigned long flags; - int i; -@@ -1067,7 +1067,7 @@ static int pcnet32_suspend(struct net_de - { - int csr5; - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - int ticks; - -@@ -1324,8 +1324,8 @@ static int pcnet32_poll(struct napi_stru - spin_lock_irqsave(&lp->lock, flags); - if (pcnet32_tx(dev)) { - /* reset the chip to clear the error condition, then restart */ -- lp->a.reset(ioaddr); -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->reset(ioaddr); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ - pcnet32_restart(dev, CSR0_START); - netif_wake_queue(dev); - } -@@ -1337,12 +1337,12 @@ static int pcnet32_poll(struct napi_stru - __napi_complete(napi); - - /* clear interrupt masks */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val &= 0x00ff; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - - /* Set interrupt enable. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN); - - spin_unlock_irqrestore(&lp->lock, flags); - } -@@ -1365,7 +1365,7 @@ static void pcnet32_get_regs(struct net_ - int i, csr0; - u16 *buff = ptr; - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - unsigned long flags; - -@@ -1401,9 +1401,9 @@ static void pcnet32_get_regs(struct net_ - for (j = 0; j < PCNET32_MAX_PHYS; j++) { - if (lp->phymask & (1 << j)) { - for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { -- lp->a.write_bcr(ioaddr, 33, -+ lp->a->write_bcr(ioaddr, 33, - (j << 5) | i); -- *buff++ = lp->a.read_bcr(ioaddr, 34); -+ *buff++ = lp->a->read_bcr(ioaddr, 34); - } - } - } -@@ -1785,7 +1785,7 @@ pcnet32_probe1(unsigned long ioaddr, int - ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) - lp->options |= PCNET32_PORT_FD; - -- lp->a = *a; -+ lp->a = a; - - /* prior to register_netdev, dev->name is not yet correct */ - if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { -@@ -1844,7 +1844,7 @@ pcnet32_probe1(unsigned long ioaddr, int - if (lp->mii) { - /* lp->phycount and lp->phymask are set to 0 by memset above */ - -- lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; -+ lp->mii_if.phy_id = ((lp->a->read_bcr(ioaddr, 33)) >> 5) & 0x1f; - /* scan for PHYs */ - for (i = 0; i < PCNET32_MAX_PHYS; i++) { - unsigned short id1, id2; -@@ -1864,7 +1864,7 @@ pcnet32_probe1(unsigned long ioaddr, int - pr_info("Found PHY %04x:%04x at address %d\n", - id1, id2, i); - } -- lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); -+ lp->a->write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); - if (lp->phycount > 1) - lp->options |= PCNET32_PORT_MII; - } -@@ -2020,10 +2020,10 @@ static int pcnet32_open(struct net_devic - } - - /* Reset the PCNET32 */ -- lp->a.reset(ioaddr); -+ lp->a->reset(ioaddr); - - /* switch pcnet32 to 32bit mode */ -- lp->a.write_bcr(ioaddr, 20, 2); -+ lp->a->write_bcr(ioaddr, 20, 2); - - netif_printk(lp, ifup, KERN_DEBUG, dev, - "%s() irq %d tx/rx rings %#x/%#x init %#x\n", -@@ -2032,14 +2032,14 @@ static int pcnet32_open(struct net_devic - (u32) (lp->init_dma_addr)); - - /* set/reset autoselect bit */ -- val = lp->a.read_bcr(ioaddr, 2) & ~2; -+ val = lp->a->read_bcr(ioaddr, 2) & ~2; - if (lp->options & PCNET32_PORT_ASEL) - val |= 2; -- lp->a.write_bcr(ioaddr, 2, val); -+ lp->a->write_bcr(ioaddr, 2, val); - - /* handle full duplex setting */ - if (lp->mii_if.full_duplex) { -- val = lp->a.read_bcr(ioaddr, 9) & ~3; -+ val = lp->a->read_bcr(ioaddr, 9) & ~3; - if (lp->options & PCNET32_PORT_FD) { - val |= 1; - if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) -@@ -2049,14 +2049,14 @@ static int pcnet32_open(struct net_devic - if (lp->chip_version == 0x2627) - val |= 3; - } -- lp->a.write_bcr(ioaddr, 9, val); -+ lp->a->write_bcr(ioaddr, 9, val); - } - - /* set/reset GPSI bit in test register */ -- val = lp->a.read_csr(ioaddr, 124) & ~0x10; -+ val = lp->a->read_csr(ioaddr, 124) & ~0x10; - if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) - val |= 0x10; -- lp->a.write_csr(ioaddr, 124, val); -+ lp->a->write_csr(ioaddr, 124, val); - - /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ - if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT && -@@ -2075,24 +2075,24 @@ static int pcnet32_open(struct net_devic - * duplex, and/or enable auto negotiation, and clear DANAS - */ - if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { -- lp->a.write_bcr(ioaddr, 32, -- lp->a.read_bcr(ioaddr, 32) | 0x0080); -+ lp->a->write_bcr(ioaddr, 32, -+ lp->a->read_bcr(ioaddr, 32) | 0x0080); - /* disable Auto Negotiation, set 10Mpbs, HD */ -- val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; -+ val = lp->a->read_bcr(ioaddr, 32) & ~0xb8; - if (lp->options & PCNET32_PORT_FD) - val |= 0x10; - if (lp->options & PCNET32_PORT_100) - val |= 0x08; -- lp->a.write_bcr(ioaddr, 32, val); -+ lp->a->write_bcr(ioaddr, 32, val); - } else { - if (lp->options & PCNET32_PORT_ASEL) { -- lp->a.write_bcr(ioaddr, 32, -- lp->a.read_bcr(ioaddr, -+ lp->a->write_bcr(ioaddr, 32, -+ lp->a->read_bcr(ioaddr, - 32) | 0x0080); - /* enable auto negotiate, setup, disable fd */ -- val = lp->a.read_bcr(ioaddr, 32) & ~0x98; -+ val = lp->a->read_bcr(ioaddr, 32) & ~0x98; - val |= 0x20; -- lp->a.write_bcr(ioaddr, 32, val); -+ lp->a->write_bcr(ioaddr, 32, val); - } - } - } else { -@@ -2105,10 +2105,10 @@ static int pcnet32_open(struct net_devic - * There is really no good other way to handle multiple PHYs - * other than turning off all automatics - */ -- val = lp->a.read_bcr(ioaddr, 2); -- lp->a.write_bcr(ioaddr, 2, val & ~2); -- val = lp->a.read_bcr(ioaddr, 32); -- lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ -+ val = lp->a->read_bcr(ioaddr, 2); -+ lp->a->write_bcr(ioaddr, 2, val & ~2); -+ val = lp->a->read_bcr(ioaddr, 32); -+ lp->a->write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ - - if (!(lp->options & PCNET32_PORT_ASEL)) { - /* setup ecmd */ -@@ -2118,7 +2118,7 @@ static int pcnet32_open(struct net_devic - ethtool_cmd_speed_set(&ecmd, - (lp->options & PCNET32_PORT_100) ? - SPEED_100 : SPEED_10); -- bcr9 = lp->a.read_bcr(ioaddr, 9); -+ bcr9 = lp->a->read_bcr(ioaddr, 9); - - if (lp->options & PCNET32_PORT_FD) { - ecmd.duplex = DUPLEX_FULL; -@@ -2127,7 +2127,7 @@ static int pcnet32_open(struct net_devic - ecmd.duplex = DUPLEX_HALF; - bcr9 |= ~(1 << 0); - } -- lp->a.write_bcr(ioaddr, 9, bcr9); -+ lp->a->write_bcr(ioaddr, 9, bcr9); - } - - for (i = 0; i < PCNET32_MAX_PHYS; i++) { -@@ -2158,9 +2158,9 @@ static int pcnet32_open(struct net_devic - - #ifdef DO_DXSUFLO - if (lp->dxsuflo) { /* Disable transmit stop on underflow */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val |= 0x40; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - } - #endif - -@@ -2176,11 +2176,11 @@ static int pcnet32_open(struct net_devic - napi_enable(&lp->napi); - - /* Re-initialize the PCNET32, and start it when done. */ -- lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); -- lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); -+ lp->a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); -+ lp->a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); - -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); - - netif_start_queue(dev); - -@@ -2192,19 +2192,19 @@ static int pcnet32_open(struct net_devic - - i = 0; - while (i++ < 100) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) - break; - /* - * We used to clear the InitDone bit, 0x0100, here but Mark Stockton - * reports that doing so triggers a bug in the '974. - */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_NORMAL); - - netif_printk(lp, ifup, KERN_DEBUG, dev, - "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n", - i, - (u32) (lp->init_dma_addr), -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -2218,7 +2218,7 @@ err_free_ring: - * Switch back to 16bit mode to avoid problems with dumb - * DOS packet driver after a warm reboot - */ -- lp->a.write_bcr(ioaddr, 20, 4); -+ lp->a->write_bcr(ioaddr, 20, 4); - - err_free_irq: - spin_unlock_irqrestore(&lp->lock, flags); -@@ -2323,7 +2323,7 @@ static void pcnet32_restart(struct net_d - - /* wait for stop */ - for (i = 0; i < 100; i++) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_STOP) - break; - - if (i >= 100) -@@ -2335,13 +2335,13 @@ static void pcnet32_restart(struct net_d - return; - - /* ReInit Ring */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); - i = 0; - while (i++ < 1000) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) - break; - -- lp->a.write_csr(ioaddr, CSR0, csr0_bits); -+ lp->a->write_csr(ioaddr, CSR0, csr0_bits); - } - - static void pcnet32_tx_timeout(struct net_device *dev) -@@ -2353,8 +2353,8 @@ static void pcnet32_tx_timeout(struct ne - /* Transmitter timeout, serious problems. */ - if (pcnet32_debug & NETIF_MSG_DRV) - pr_err("%s: transmit timed out, status %4.4x, resetting\n", -- dev->name, lp->a.read_csr(ioaddr, CSR0)); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ dev->name, lp->a->read_csr(ioaddr, CSR0)); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - dev->stats.tx_errors++; - if (netif_msg_tx_err(lp)) { - int i; -@@ -2397,7 +2397,7 @@ static netdev_tx_t pcnet32_start_xmit(st - - netif_printk(lp, tx_queued, KERN_DEBUG, dev, - "%s() called, csr0 %4.4x\n", -- __func__, lp->a.read_csr(ioaddr, CSR0)); -+ __func__, lp->a->read_csr(ioaddr, CSR0)); - - /* Default status -- will not enable Successful-TxDone - * interrupt when that option is available to us. -@@ -2427,7 +2427,7 @@ static netdev_tx_t pcnet32_start_xmit(st - dev->stats.tx_bytes += skb->len; - - /* Trigger an immediate send poll. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); - - if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { - lp->tx_full = 1; -@@ -2452,16 +2452,16 @@ pcnet32_interrupt(int irq, void *dev_id) - - spin_lock(&lp->lock); - -- csr0 = lp->a.read_csr(ioaddr, CSR0); -+ csr0 = lp->a->read_csr(ioaddr, CSR0); - while ((csr0 & 0x8f00) && --boguscnt >= 0) { - if (csr0 == 0xffff) - break; /* PCMCIA remove happened */ - /* Acknowledge all of the current interrupt sources ASAP. */ -- lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); -+ lp->a->write_csr(ioaddr, CSR0, csr0 & ~0x004f); - - netif_printk(lp, intr, KERN_DEBUG, dev, - "interrupt csr0=%#2.2x new csr=%#2.2x\n", -- csr0, lp->a.read_csr(ioaddr, CSR0)); -+ csr0, lp->a->read_csr(ioaddr, CSR0)); - - /* Log misc errors. */ - if (csr0 & 0x4000) -@@ -2488,19 +2488,19 @@ pcnet32_interrupt(int irq, void *dev_id) - if (napi_schedule_prep(&lp->napi)) { - u16 val; - /* set interrupt masks */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val |= 0x5f00; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - - __napi_schedule(&lp->napi); - break; - } -- csr0 = lp->a.read_csr(ioaddr, CSR0); -+ csr0 = lp->a->read_csr(ioaddr, CSR0); - } - - netif_printk(lp, intr, KERN_DEBUG, dev, - "exiting interrupt, csr0=%#4.4x\n", -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - spin_unlock(&lp->lock); - -@@ -2520,20 +2520,20 @@ static int pcnet32_close(struct net_devi - - spin_lock_irqsave(&lp->lock, flags); - -- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); -+ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); - - netif_printk(lp, ifdown, KERN_DEBUG, dev, - "Shutting down ethercard, status was %2.2x\n", -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - - /* - * Switch back to 16bit mode to avoid problems with dumb - * DOS packet driver after a warm reboot - */ -- lp->a.write_bcr(ioaddr, 20, 4); -+ lp->a->write_bcr(ioaddr, 20, 4); - - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -2556,7 +2556,7 @@ static struct net_device_stats *pcnet32_ - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); -- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); -+ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); - spin_unlock_irqrestore(&lp->lock, flags); - - return &dev->stats; -@@ -2578,10 +2578,10 @@ static void pcnet32_load_multicast(struc - if (dev->flags & IFF_ALLMULTI) { - ib->filter[0] = cpu_to_le32(~0U); - ib->filter[1] = cpu_to_le32(~0U); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); - return; - } - /* clear the multicast filter */ -@@ -2601,7 +2601,7 @@ static void pcnet32_load_multicast(struc - mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); - } - for (i = 0; i < 4; i++) -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER + i, - le16_to_cpu(mcast_table[i])); - } - -@@ -2616,28 +2616,28 @@ static void pcnet32_set_multicast_list(s - - spin_lock_irqsave(&lp->lock, flags); - suspended = pcnet32_suspend(dev, &flags, 0); -- csr15 = lp->a.read_csr(ioaddr, CSR15); -+ csr15 = lp->a->read_csr(ioaddr, CSR15); - if (dev->flags & IFF_PROMISC) { - /* Log any net taps. */ - netif_info(lp, hw, dev, "Promiscuous mode enabled\n"); - lp->init_block->mode = - cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << - 7); -- lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); -+ lp->a->write_csr(ioaddr, CSR15, csr15 | 0x8000); - } else { - lp->init_block->mode = - cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); -- lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); -+ lp->a->write_csr(ioaddr, CSR15, csr15 & 0x7fff); - pcnet32_load_multicast(dev); - } - - if (suspended) { - int csr5; - /* clear SUSPEND (SPND) - CSR5 bit 0 */ -- csr5 = lp->a.read_csr(ioaddr, CSR5); -- lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); -+ csr5 = lp->a->read_csr(ioaddr, CSR5); -+ lp->a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); - } else { -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - pcnet32_restart(dev, CSR0_NORMAL); - netif_wake_queue(dev); - } -@@ -2655,8 +2655,8 @@ static int mdio_read(struct net_device * - if (!lp->mii) - return 0; - -- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -- val_out = lp->a.read_bcr(ioaddr, 34); -+ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -+ val_out = lp->a->read_bcr(ioaddr, 34); - - return val_out; - } -@@ -2670,8 +2670,8 @@ static void mdio_write(struct net_device - if (!lp->mii) - return; - -- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -- lp->a.write_bcr(ioaddr, 34, val); -+ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -+ lp->a->write_bcr(ioaddr, 34, val); - } - - static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -@@ -2748,7 +2748,7 @@ static void pcnet32_check_media(struct n - curr_link = mii_link_ok(&lp->mii_if); - } else { - ulong ioaddr = dev->base_addr; /* card base I/O address */ -- curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); -+ curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0); - } - if (!curr_link) { - if (prev_link || verbose) { -@@ -2771,13 +2771,13 @@ static void pcnet32_check_media(struct n - (ecmd.duplex == DUPLEX_FULL) - ? "full" : "half"); - } -- bcr9 = lp->a.read_bcr(dev->base_addr, 9); -+ bcr9 = lp->a->read_bcr(dev->base_addr, 9); - if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { - if (lp->mii_if.full_duplex) - bcr9 |= (1 << 0); - else - bcr9 &= ~(1 << 0); -- lp->a.write_bcr(dev->base_addr, 9, bcr9); -+ lp->a->write_bcr(dev->base_addr, 9, bcr9); - } - } else { - netif_info(lp, link, dev, "link up\n"); -diff -urNp linux-3.0.4/drivers/net/ppp_generic.c linux-3.0.4/drivers/net/ppp_generic.c ---- linux-3.0.4/drivers/net/ppp_generic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ppp_generic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -987,7 +987,6 @@ ppp_net_ioctl(struct net_device *dev, st - 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: -@@ -1009,8 +1008,7 @@ ppp_net_ioctl(struct net_device *dev, st - 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 -urNp linux-3.0.4/drivers/net/r8169.c linux-3.0.4/drivers/net/r8169.c ---- linux-3.0.4/drivers/net/r8169.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/net/r8169.c 2011-08-23 21:47:55.000000000 -0400 -@@ -645,12 +645,12 @@ 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; - - int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv); - int (*get_settings)(struct net_device *, struct ethtool_cmd *); -diff -urNp linux-3.0.4/drivers/net/tg3.h linux-3.0.4/drivers/net/tg3.h ---- linux-3.0.4/drivers/net/tg3.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tg3.h 2011-08-23 21:47:55.000000000 -0400 -@@ -134,6 +134,7 @@ - #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 -urNp linux-3.0.4/drivers/net/tokenring/abyss.c linux-3.0.4/drivers/net/tokenring/abyss.c ---- linux-3.0.4/drivers/net/tokenring/abyss.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/abyss.c 2011-08-23 21:47:55.000000000 -0400 -@@ -451,10 +451,12 @@ 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 -urNp linux-3.0.4/drivers/net/tokenring/madgemc.c linux-3.0.4/drivers/net/tokenring/madgemc.c ---- linux-3.0.4/drivers/net/tokenring/madgemc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/madgemc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -744,9 +744,11 @@ 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 -urNp linux-3.0.4/drivers/net/tokenring/proteon.c linux-3.0.4/drivers/net/tokenring/proteon.c ---- linux-3.0.4/drivers/net/tokenring/proteon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/proteon.c 2011-08-23 21:47:55.000000000 -0400 -@@ -353,9 +353,11 @@ 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 -urNp linux-3.0.4/drivers/net/tokenring/skisa.c linux-3.0.4/drivers/net/tokenring/skisa.c ---- linux-3.0.4/drivers/net/tokenring/skisa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/skisa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -363,9 +363,11 @@ 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 -urNp linux-3.0.4/drivers/net/tulip/de2104x.c linux-3.0.4/drivers/net/tulip/de2104x.c ---- linux-3.0.4/drivers/net/tulip/de2104x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tulip/de2104x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1794,6 +1794,8 @@ static void __devinit de21041_get_srom_i - struct de_srom_info_leaf *il; - void *bufp; - -+ pax_track_stack(); -+ - /* download entire eeprom */ - for (i = 0; i < DE_EEPROM_WORDS; i++) - ((__le16 *)ee_data)[i] = -diff -urNp linux-3.0.4/drivers/net/tulip/de4x5.c linux-3.0.4/drivers/net/tulip/de4x5.c ---- linux-3.0.4/drivers/net/tulip/de4x5.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tulip/de4x5.c 2011-08-23 21:47:55.000000000 -0400 -@@ -5401,7 +5401,7 @@ de4x5_ioctl(struct net_device *dev, stru - 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 */ -@@ -5441,7 +5441,7 @@ de4x5_ioctl(struct net_device *dev, stru - 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 -urNp linux-3.0.4/drivers/net/usb/hso.c linux-3.0.4/drivers/net/usb/hso.c ---- linux-3.0.4/drivers/net/usb/hso.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/usb/hso.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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_ - 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_cal - 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_st - 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_st - 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_ - - /* 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(struc - - /* 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 *ur - 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_interfa - /* 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 -urNp linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c ---- linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-08-23 21:47:55.000000000 -0400 -@@ -594,8 +594,7 @@ vmxnet3_set_rss_indir(struct net_device - * Return with error code if any of the queue indices - * is out of range - */ -- if (p->ring_index[i] < 0 || -- p->ring_index[i] >= adapter->num_rx_queues) -+ if (p->ring_index[i] >= adapter->num_rx_queues) - return -EINVAL; - } - -diff -urNp linux-3.0.4/drivers/net/vxge/vxge-config.h linux-3.0.4/drivers/net/vxge/vxge-config.h ---- linux-3.0.4/drivers/net/vxge/vxge-config.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-config.h 2011-08-23 21:47:55.000000000 -0400 -@@ -512,7 +512,7 @@ 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 -urNp linux-3.0.4/drivers/net/vxge/vxge-main.c linux-3.0.4/drivers/net/vxge/vxge-main.c ---- linux-3.0.4/drivers/net/vxge/vxge-main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -98,6 +98,8 @@ static inline void VXGE_COMPLETE_VPATH_T - struct sk_buff *completed[NR_SKB_COMPLETED]; - int more; - -+ pax_track_stack(); -+ - do { - more = 0; - skb_ptr = completed; -@@ -1920,6 +1922,8 @@ static enum vxge_hw_status vxge_rth_conf - u8 mtable[256] = {0}; /* CPU to vpath mapping */ - int index; - -+ pax_track_stack(); -+ - /* - * Filling - * - itable with bucket numbers -diff -urNp linux-3.0.4/drivers/net/vxge/vxge-traffic.h linux-3.0.4/drivers/net/vxge/vxge-traffic.h ---- linux-3.0.4/drivers/net/vxge/vxge-traffic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-traffic.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/net/wan/cycx_x25.c linux-3.0.4/drivers/net/wan/cycx_x25.c ---- linux-3.0.4/drivers/net/wan/cycx_x25.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wan/cycx_x25.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1018,6 +1018,8 @@ static void hex_dump(char *msg, unsigned - unsigned char hex[1024], - * phex = hex; - -+ pax_track_stack(); -+ - if (len >= (sizeof(hex) / 2)) - len = (sizeof(hex) / 2) - 1; - -diff -urNp linux-3.0.4/drivers/net/wan/hdlc_x25.c linux-3.0.4/drivers/net/wan/hdlc_x25.c ---- linux-3.0.4/drivers/net/wan/hdlc_x25.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wan/hdlc_x25.c 2011-08-23 21:47:55.000000000 -0400 -@@ -136,16 +136,16 @@ static netdev_tx_t x25_xmit(struct sk_bu - - static int x25_open(struct net_device *dev) - { -- struct lapb_register_struct cb; -+ static struct lapb_register_struct cb = { -+ .connect_confirmation = x25_connected, -+ .connect_indication = x25_connected, -+ .disconnect_confirmation = x25_disconnected, -+ .disconnect_indication = x25_disconnected, -+ .data_indication = x25_data_indication, -+ .data_transmit = x25_data_transmit -+ }; - int result; - -- cb.connect_confirmation = x25_connected; -- cb.connect_indication = x25_connected; -- cb.disconnect_confirmation = x25_disconnected; -- cb.disconnect_indication = x25_disconnected; -- cb.data_indication = x25_data_indication; -- cb.data_transmit = x25_data_transmit; -- - result = lapb_register(dev, &cb); - if (result != LAPB_OK) - return result; -diff -urNp linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c ---- linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -287,6 +287,8 @@ ssize_t i2400mu_bus_bm_wait_for_ack(stru - int do_autopm = 1; - DECLARE_COMPLETION_ONSTACK(notif_completion); - -+ pax_track_stack(); -+ - d_fnstart(8, dev, "(i2400m %p ack %p size %zu)\n", - i2400m, ack, ack_size); - BUG_ON(_ack == i2400m->bm_ack_buf); -diff -urNp linux-3.0.4/drivers/net/wireless/airo.c linux-3.0.4/drivers/net/wireless/airo.c ---- linux-3.0.4/drivers/net/wireless/airo.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/airo.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3003,6 +3003,8 @@ static void airo_process_scan_results (s - BSSListElement * loop_net; - BSSListElement * tmp_net; - -+ pax_track_stack(); -+ - /* Blow away current list of scan results */ - list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) { - list_move_tail (&loop_net->list, &ai->network_free_list); -@@ -3794,6 +3796,8 @@ static u16 setup_card(struct airo_info * - WepKeyRid wkr; - int rc; - -+ pax_track_stack(); -+ - memset( &mySsid, 0, sizeof( mySsid ) ); - kfree (ai->flash); - ai->flash = NULL; -@@ -4753,6 +4757,8 @@ static int proc_stats_rid_open( struct i - __le32 *vals = stats.vals; - int len; - -+ pax_track_stack(); -+ - if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) - return -ENOMEM; - data = file->private_data; -@@ -5476,6 +5482,8 @@ static int proc_BSSList_open( struct ino - /* If doLoseSync is not 1, we won't do a Lose Sync */ - int doLoseSync = -1; - -+ pax_track_stack(); -+ - if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) - return -ENOMEM; - data = file->private_data; -@@ -7181,6 +7189,8 @@ static int airo_get_aplist(struct net_de - int i; - int loseSync = capable(CAP_NET_ADMIN) ? 1: -1; - -+ pax_track_stack(); -+ - qual = kmalloc(IW_MAX_AP * sizeof(*qual), GFP_KERNEL); - if (!qual) - return -ENOMEM; -@@ -7741,6 +7751,8 @@ static void airo_read_wireless_stats(str - CapabilityRid cap_rid; - __le32 *vals = stats_rid.vals; - -+ pax_track_stack(); -+ - /* Get stats out of the card */ - clear_bit(JOB_WSTATS, &local->jobs); - if (local->power.event) { -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -204,6 +204,8 @@ static ssize_t read_file_beacon(struct f - unsigned int v; - u64 tsf; - -+ pax_track_stack(); -+ - v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON); - len += snprintf(buf+len, sizeof(buf)-len, - "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", -@@ -323,6 +325,8 @@ static ssize_t read_file_debug(struct fi - unsigned int len = 0; - unsigned int i; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level); - -@@ -384,6 +388,8 @@ static ssize_t read_file_antenna(struct - unsigned int i; - unsigned int v; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n", - sc->ah->ah_ant_mode); - len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n", -@@ -494,6 +500,8 @@ static ssize_t read_file_misc(struct fil - unsigned int len = 0; - u32 filt = ath5k_hw_get_rx_filter(sc->ah); - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n", - sc->bssidmask); - len += snprintf(buf+len, sizeof(buf)-len, "filter-flags: 0x%x ", -@@ -550,6 +558,8 @@ static ssize_t read_file_frameerrors(str - unsigned int len = 0; - int i; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "RX\n---------------------\n"); - len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%u\t(%u%%)\n", -@@ -667,6 +677,8 @@ static ssize_t read_file_ani(struct file - char buf[700]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "HW has PHY error counters:\t%s\n", - sc->ah->ah_capabilities.cap_has_phyerr_counters ? -@@ -827,6 +839,8 @@ static ssize_t read_file_queue(struct fi - struct ath5k_buf *bf, *bf0; - int i, n; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "available txbuffers: %d\n", sc->txbuf_len); - -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-08-23 21:48:14.000000000 -0400 -@@ -757,6 +757,8 @@ static void ar9003_hw_tx_iq_cal_post_pro - int i, im, j; - int nmeasurement; - -+ pax_track_stack(); -+ - for (i = 0; i < AR9300_MAX_CHAINS; i++) { - if (ah->txchainmask & (1 << i)) - num_chains++; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -356,6 +356,8 @@ static bool create_pa_curve(u32 *data_L, - int theta_low_bin = 0; - int i; - -+ pax_track_stack(); -+ - /* disregard any bin that contains <= 16 samples */ - thresh_accum_cnt = 16; - scale_factor = 5; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -337,6 +337,8 @@ static ssize_t read_file_interrupt(struc - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); -@@ -427,6 +429,8 @@ static ssize_t read_file_wiphy(struct fi - u8 addr[ETH_ALEN]; - u32 tmp; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, - "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", - wiphy_name(sc->hw->wiphy), -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -31,6 +31,8 @@ static ssize_t read_file_tgt_int_stats(s - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -89,6 +91,8 @@ static ssize_t read_file_tgt_tx_stats(st - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -159,6 +163,8 @@ static ssize_t read_file_tgt_rx_stats(st - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -203,6 +209,8 @@ static ssize_t read_file_xmit(struct fil - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, - "%20s : %10u\n", "Buffers queued", - priv->debug.tx_stats.buf_queued); -@@ -376,6 +384,8 @@ static ssize_t read_file_slot(struct fil - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - spin_lock_bh(&priv->tx.tx_lock); - - len += snprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : "); -@@ -411,6 +421,8 @@ static ssize_t read_file_queue(struct fi - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n", - "Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue)); - -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -585,7 +585,7 @@ 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 -@@ -637,7 +637,7 @@ 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; -@@ -650,7 +650,7 @@ struct ath_nf_limits { - #define AH_UNPLUGGED 0x2 /* The card has been physically removed. */ - - struct ath_hw { -- struct ath_ops reg_ops; -+ ath_ops_no_const reg_ops; - - struct ieee80211_hw *hw; - struct ath_common common; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath.h linux-3.0.4/drivers/net/wireless/ath/ath.h ---- linux-3.0.4/drivers/net/wireless/ath/ath.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath.h 2011-08-23 21:47:55.000000000 -0400 -@@ -121,6 +121,7 @@ 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 -urNp linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c ---- linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2100,6 +2100,8 @@ static int ipw2100_set_essid(struct ipw2 - int err; - DECLARE_SSID_BUF(ssid); - -+ pax_track_stack(); -+ - IPW_DEBUG_HC("SSID: '%s'\n", print_ssid(ssid, essid, ssid_len)); - - if (ssid_len) -@@ -5449,6 +5451,8 @@ static int ipw2100_set_key(struct ipw210 - struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters; - int err; - -+ pax_track_stack(); -+ - IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n", - idx, keylen, len); - -diff -urNp linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c ---- linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1565,6 +1565,8 @@ static void libipw_process_probe_respons - unsigned long flags; - DECLARE_SSID_BUF(ssid); - -+ pax_track_stack(); -+ - LIBIPW_DEBUG_SCAN("'%s' (%pM" - "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", - print_ssid(ssid, info_element->data, info_element->len), -diff -urNp linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c ---- linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3962,7 +3962,9 @@ static int iwl3945_pci_probe(struct pci_ - */ - if (iwl3945_mod_params.disable_hw_scan) { - IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); -- iwl3945_hw_ops.hw_scan = NULL; -+ pax_open_kernel(); -+ *(void **)&iwl3945_hw_ops.hw_scan = NULL; -+ pax_close_kernel(); - } - - IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -910,6 +910,8 @@ static void rs_tx_status(void *priv_r, s - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - -+ pax_track_stack(); -+ - IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n"); - - /* Treat uninitialized rate scaling data same as non-existing. */ -@@ -2918,6 +2920,8 @@ static void rs_fill_link_cmd(struct iwl_ - container_of(lq_sta, struct iwl_station_priv, lq_sta); - struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq; - -+ pax_track_stack(); -+ - /* Override starting rate (index 0) if needed for debug purposes */ - rs_dbgfs_set_mcs(lq_sta, &new_rate, index); - -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -548,6 +548,8 @@ static ssize_t iwl_dbgfs_status_read(str - int pos = 0; - const size_t bufsz = sizeof(buf); - -+ pax_track_stack(); -+ - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n", - test_bit(STATUS_HCMD_ACTIVE, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n", -@@ -680,6 +682,8 @@ static ssize_t iwl_dbgfs_qos_read(struct - char buf[256 * NUM_IWL_RXON_CTX]; - const size_t bufsz = sizeof(buf); - -+ pax_track_stack(); -+ - for_each_context(priv, ctx) { - pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", - ctx->ctxid); -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-08-23 21:47:55.000000000 -0400 -@@ -68,8 +68,8 @@ do { - } while (0) - - #else --#define IWL_DEBUG(__priv, level, fmt, args...) --#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) -+#define IWL_DEBUG(__priv, level, fmt, args...) do {} while (0) -+#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) do {} while (0) - static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - const void *p, u32 len) - {} -diff -urNp linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c ---- linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -327,6 +327,8 @@ static ssize_t iwm_debugfs_fw_err_read(s - int buf_len = 512; - size_t len = 0; - -+ pax_track_stack(); -+ - if (*ppos != 0) - return 0; - if (count < sizeof(buf)) -diff -urNp linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c ---- linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1260,9 +1260,11 @@ static int __init init_mac80211_hwsim(vo - 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 -urNp linux-3.0.4/drivers/net/wireless/rndis_wlan.c linux-3.0.4/drivers/net/wireless/rndis_wlan.c ---- linux-3.0.4/drivers/net/wireless/rndis_wlan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/rndis_wlan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1277,7 +1277,7 @@ static int set_rts_threshold(struct usbn - - 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 -urNp linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c ---- linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-08-23 21:48:14.000000000 -0400 -@@ -837,6 +837,8 @@ bool _rtl92c_phy_sw_chnl_step_by_step(st - u8 rfpath; - u8 num_total_rfpath = rtlphy->num_total_rfpath; - -+ pax_track_stack(); -+ - precommoncmdcnt = 0; - _rtl92c_phy_set_sw_chnl_cmdarray(precommoncmd, precommoncmdcnt++, - MAX_PRECMD_CNT, -diff -urNp linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h ---- linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/net/wireless/wl12xx/spi.c linux-3.0.4/drivers/net/wireless/wl12xx/spi.c ---- linux-3.0.4/drivers/net/wireless/wl12xx/spi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/wl12xx/spi.c 2011-08-23 21:48:14.000000000 -0400 -@@ -280,6 +280,8 @@ static void wl1271_spi_raw_write(struct - u32 chunk_len; - int i; - -+ pax_track_stack(); -+ - WARN_ON(len > WL1271_AGGR_BUFFER_SIZE); - - spi_message_init(&m); -diff -urNp linux-3.0.4/drivers/oprofile/buffer_sync.c linux-3.0.4/drivers/oprofile/buffer_sync.c ---- linux-3.0.4/drivers/oprofile/buffer_sync.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/buffer_sync.c 2011-08-23 21:47:55.000000000 -0400 -@@ -343,7 +343,7 @@ static void add_data(struct op_entry *en - 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 - /* 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 -urNp linux-3.0.4/drivers/oprofile/event_buffer.c linux-3.0.4/drivers/oprofile/event_buffer.c ---- linux-3.0.4/drivers/oprofile/event_buffer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/event_buffer.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/oprofile/oprof.c linux-3.0.4/drivers/oprofile/oprof.c ---- linux-3.0.4/drivers/oprofile/oprof.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprof.c 2011-08-23 21:47:55.000000000 -0400 -@@ -110,7 +110,7 @@ static void switch_worker(struct work_st - if (oprofile_ops.switch_events()) - return; - -- atomic_inc(&oprofile_stats.multiplex_counter); -+ atomic_inc_unchecked(&oprofile_stats.multiplex_counter); - start_switch_worker(); - } - -diff -urNp linux-3.0.4/drivers/oprofile/oprofilefs.c linux-3.0.4/drivers/oprofile/oprofilefs.c ---- linux-3.0.4/drivers/oprofile/oprofilefs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofilefs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -186,7 +186,7 @@ static const struct file_operations atom - - - 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 -urNp linux-3.0.4/drivers/oprofile/oprofile_stats.c linux-3.0.4/drivers/oprofile/oprofile_stats.c ---- linux-3.0.4/drivers/oprofile/oprofile_stats.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofile_stats.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/oprofile/oprofile_stats.h linux-3.0.4/drivers/oprofile/oprofile_stats.h ---- linux-3.0.4/drivers/oprofile/oprofile_stats.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofile_stats.h 2011-08-23 21:47:55.000000000 -0400 -@@ -13,11 +13,11 @@ - #include <asm/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 -urNp linux-3.0.4/drivers/parport/procfs.c linux-3.0.4/drivers/parport/procfs.c ---- linux-3.0.4/drivers/parport/procfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/parport/procfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *t - - *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 - - *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 -urNp linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h ---- linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c ---- linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c 2011-08-23 21:47:55.000000000 -0400 -@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_ - - 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 -urNp linux-3.0.4/drivers/pci/pcie/aspm.c linux-3.0.4/drivers/pci/pcie/aspm.c ---- linux-3.0.4/drivers/pci/pcie/aspm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/pcie/aspm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/pci/probe.c linux-3.0.4/drivers/pci/probe.c ---- linux-3.0.4/drivers/pci/probe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/probe.c 2011-08-23 21:47:55.000000000 -0400 -@@ -129,7 +129,7 @@ int __pci_read_base(struct pci_dev *dev, - u32 l, sz, mask; - u16 orig_cmd; - -- 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 -urNp linux-3.0.4/drivers/pci/proc.c linux-3.0.4/drivers/pci/proc.c ---- linux-3.0.4/drivers/pci/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/proc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -476,7 +476,16 @@ static const struct file_operations proc - 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 -urNp linux-3.0.4/drivers/pci/xen-pcifront.c linux-3.0.4/drivers/pci/xen-pcifront.c ---- linux-3.0.4/drivers/pci/xen-pcifront.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/xen-pcifront.c 2011-08-23 21:48:14.000000000 -0400 -@@ -187,6 +187,8 @@ static int pcifront_bus_read(struct pci_ - struct pcifront_sd *sd = bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - if (verbose_request) - dev_info(&pdev->xdev->dev, - "read dev=%04x:%02x:%02x.%01x - offset %x size %d\n", -@@ -226,6 +228,8 @@ static int pcifront_bus_write(struct pci - struct pcifront_sd *sd = bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - if (verbose_request) - dev_info(&pdev->xdev->dev, - "write dev=%04x:%02x:%02x.%01x - " -@@ -258,6 +262,8 @@ static int pci_frontend_enable_msix(stru - struct pcifront_device *pdev = pcifront_get_pdev(sd); - struct msi_desc *entry; - -+ pax_track_stack(); -+ - if (nvec > SH_INFO_MAX_VEC) { - dev_err(&dev->dev, "too much vector for pci frontend: %x." - " Increase SH_INFO_MAX_VEC.\n", nvec); -@@ -309,6 +315,8 @@ static void pci_frontend_disable_msix(st - struct pcifront_sd *sd = dev->bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - err = do_pci_op(pdev, &op); - - /* What should do for error ? */ -@@ -328,6 +336,8 @@ static int pci_frontend_enable_msi(struc - struct pcifront_sd *sd = dev->bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - err = do_pci_op(pdev, &op); - if (likely(!err)) { - vector[0] = op.value; -diff -urNp linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c ---- linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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 & -diff -urNp linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c ---- linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -59,7 +59,7 @@ 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); - - /* -@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func - - 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); -@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func - :"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. */ -@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 n - 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; - -@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_i - 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) -@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_i - set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], - (unsigned long)__va(header->fields.pm16dseg)); - } -+ -+ pax_close_kernel(); - } -diff -urNp linux-3.0.4/drivers/pnp/resource.c linux-3.0.4/drivers/pnp/resource.c ---- linux-3.0.4/drivers/pnp/resource.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pnp/resource.c 2011-08-23 21:47:55.000000000 -0400 -@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, s - 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, s - 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 -urNp linux-3.0.4/drivers/power/bq27x00_battery.c linux-3.0.4/drivers/power/bq27x00_battery.c ---- linux-3.0.4/drivers/power/bq27x00_battery.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/power/bq27x00_battery.c 2011-08-23 21:47:55.000000000 -0400 -@@ -67,7 +67,7 @@ - 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 -urNp linux-3.0.4/drivers/regulator/max8660.c linux-3.0.4/drivers/regulator/max8660.c ---- linux-3.0.4/drivers/regulator/max8660.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/regulator/max8660.c 2011-08-23 21:47:55.000000000 -0400 -@@ -383,8 +383,10 @@ static int __devinit max8660_probe(struc - 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 -urNp linux-3.0.4/drivers/regulator/mc13892-regulator.c linux-3.0.4/drivers/regulator/mc13892-regulator.c ---- linux-3.0.4/drivers/regulator/mc13892-regulator.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/regulator/mc13892-regulator.c 2011-08-23 21:47:55.000000000 -0400 -@@ -564,10 +564,12 @@ static int __devinit mc13892_regulator_p - } - 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(); - for (i = 0; i < pdata->num_regulators; i++) { - init_data = &pdata->regulators[i]; - priv->regulators[i] = regulator_register( -diff -urNp linux-3.0.4/drivers/rtc/rtc-dev.c linux-3.0.4/drivers/rtc/rtc-dev.c ---- linux-3.0.4/drivers/rtc/rtc-dev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/rtc/rtc-dev.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 *f - if (copy_from_user(&tm, uarg, sizeof(tm))) - return -EFAULT; - -+ gr_log_timechange(); -+ - return rtc_set_time(rtc, &tm); - - case RTC_PIE_ON: -diff -urNp linux-3.0.4/drivers/scsi/aacraid/aacraid.h linux-3.0.4/drivers/scsi/aacraid/aacraid.h ---- linux-3.0.4/drivers/scsi/aacraid/aacraid.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/aacraid/aacraid.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/scsi/aacraid/commctrl.c linux-3.0.4/drivers/scsi/aacraid/commctrl.c ---- linux-3.0.4/drivers/scsi/aacraid/commctrl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/aacraid/commctrl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -482,6 +482,7 @@ static int aac_send_raw_srb(struct aac_d - u32 actual_fibsize64, actual_fibsize = 0; - int i; - -+ pax_track_stack(); - - if (dev->in_reset) { - dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n")); -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfad.c linux-3.0.4/drivers/scsi/bfa/bfad.c ---- linux-3.0.4/drivers/scsi/bfa/bfad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfad.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1032,6 +1032,8 @@ bfad_start_ops(struct bfad_s *bfad) { - struct bfad_vport_s *vport, *vport_new; - struct bfa_fcs_driver_info_s driver_info; - -+ pax_track_stack(); -+ - /* Fill the driver_info info to fcs*/ - memset(&driver_info, 0, sizeof(driver_info)); - strncpy(driver_info.version, BFAD_DRIVER_VERSION, -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c ---- linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1559,6 +1559,8 @@ bfa_fcs_lport_fdmi_build_rhba_pyld(struc - u16 len, count; - u16 templen; - -+ pax_track_stack(); -+ - /* - * get hba attributes - */ -@@ -1836,6 +1838,8 @@ bfa_fcs_lport_fdmi_build_portattr_block( - u8 count = 0; - u16 templen; - -+ pax_track_stack(); -+ - /* - * get port attributes - */ -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c ---- linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1844,6 +1844,8 @@ bfa_fcs_rport_process_rpsc(struct bfa_fc - struct fc_rpsc_speed_info_s speeds; - struct bfa_port_attr_s pport_attr; - -+ pax_track_stack(); -+ - bfa_trc(port->fcs, rx_fchs->s_id); - bfa_trc(port->fcs, rx_fchs->d_id); - -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa.h linux-3.0.4/drivers/scsi/bfa/bfa.h ---- linux-3.0.4/drivers/scsi/bfa/bfa.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa.h 2011-08-23 21:47:55.000000000 -0400 -@@ -238,7 +238,7 @@ struct bfa_hwif_s { - u32 *nvecs, u32 *maxvec); - void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start, - u32 *end); --}; -+} __no_const; - typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); - - struct bfa_iocfc_s { -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h ---- linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -196,7 +196,7 @@ 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; - - /* - * Heartbeat failure notification queue element. -@@ -268,7 +268,7 @@ struct bfa_ioc_hwif_s { - void (*ioc_sync_leave) (struct bfa_ioc_s *ioc); - void (*ioc_sync_ack) (struct bfa_ioc_s *ioc); - bfa_boolean_t (*ioc_sync_complete) (struct bfa_ioc_s *ioc); --}; -+} __no_const; - - #define bfa_ioc_pcifn(__ioc) ((__ioc)->pcidev.pci_func) - #define bfa_ioc_devid(__ioc) ((__ioc)->pcidev.device_id) -diff -urNp linux-3.0.4/drivers/scsi/BusLogic.c linux-3.0.4/drivers/scsi/BusLogic.c ---- linux-3.0.4/drivers/scsi/BusLogic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/BusLogic.c 2011-08-23 21:48:14.000000000 -0400 -@@ -962,6 +962,8 @@ static int __init BusLogic_InitializeFla - static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter - *PrototypeHostAdapter) - { -+ pax_track_stack(); -+ - /* - If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint - Host Adapters; otherwise, default to the standard ISA MultiMaster probe. -diff -urNp linux-3.0.4/drivers/scsi/dpt_i2o.c linux-3.0.4/drivers/scsi/dpt_i2o.c ---- linux-3.0.4/drivers/scsi/dpt_i2o.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/dpt_i2o.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1811,6 +1811,8 @@ static int adpt_i2o_passthru(adpt_hba* p - dma_addr_t addr; - ulong flags = 0; - -+ pax_track_stack(); -+ - memset(&msg, 0, MAX_MESSAGE_SIZE*4); - // get user msg size in u32s - if(get_user(size, &user_msg[0])){ -@@ -2317,6 +2319,8 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pH - s32 rcode; - dma_addr_t addr; - -+ pax_track_stack(); -+ - memset(msg, 0 , sizeof(msg)); - len = scsi_bufflen(cmd); - direction = 0x00000000; -diff -urNp linux-3.0.4/drivers/scsi/eata.c linux-3.0.4/drivers/scsi/eata.c ---- linux-3.0.4/drivers/scsi/eata.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/eata.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1087,6 +1087,8 @@ static int port_detect(unsigned long por - struct hostdata *ha; - char name[16]; - -+ pax_track_stack(); -+ - sprintf(name, "%s%d", driver_name, j); - - if (!request_region(port_base, REGION_SIZE, driver_name)) { -diff -urNp linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c ---- linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2503,6 +2503,8 @@ static int fcoe_ctlr_vn_recv(struct fcoe - } buf; - int rc; - -+ pax_track_stack(); -+ - fiph = (struct fip_header *)skb->data; - sub = fiph->fip_subcode; - -diff -urNp linux-3.0.4/drivers/scsi/gdth.c linux-3.0.4/drivers/scsi/gdth.c ---- linux-3.0.4/drivers/scsi/gdth.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/gdth.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4107,6 +4107,8 @@ static int ioc_lockdrv(void __user *arg) - unsigned long flags; - gdth_ha_str *ha; - -+ pax_track_stack(); -+ - if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv))) - return -EFAULT; - ha = gdth_find_ha(ldrv.ionode); -@@ -4139,6 +4141,8 @@ static int ioc_resetdrv(void __user *arg - gdth_ha_str *ha; - int rval; - -+ pax_track_stack(); -+ - if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) || - res.number >= MAX_HDRIVES) - return -EFAULT; -@@ -4174,6 +4178,8 @@ static int ioc_general(void __user *arg, - gdth_ha_str *ha; - int rval; - -+ pax_track_stack(); -+ - if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general))) - return -EFAULT; - ha = gdth_find_ha(gen.ionode); -@@ -4642,6 +4648,9 @@ static void gdth_flush(gdth_ha_str *ha) - int i; - gdth_cmd_str gdtcmd; - char cmnd[MAX_COMMAND_SIZE]; -+ -+ pax_track_stack(); -+ - memset(cmnd, 0xff, MAX_COMMAND_SIZE); - - TRACE2(("gdth_flush() hanum %d\n", ha->hanum)); -diff -urNp linux-3.0.4/drivers/scsi/gdth_proc.c linux-3.0.4/drivers/scsi/gdth_proc.c ---- linux-3.0.4/drivers/scsi/gdth_proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/gdth_proc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -47,6 +47,9 @@ static int gdth_set_asc_info(struct Scsi - u64 paddr; - - char cmnd[MAX_COMMAND_SIZE]; -+ -+ pax_track_stack(); -+ - memset(cmnd, 0xff, 12); - memset(&gdtcmd, 0, sizeof(gdth_cmd_str)); - -@@ -175,6 +178,8 @@ static int gdth_get_info(char *buffer,ch - gdth_hget_str *phg; - char cmnd[MAX_COMMAND_SIZE]; - -+ pax_track_stack(); -+ - gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL); - estr = kmalloc(sizeof(*estr), GFP_KERNEL); - if (!gdtcmd || !estr) -diff -urNp linux-3.0.4/drivers/scsi/hosts.c linux-3.0.4/drivers/scsi/hosts.c ---- linux-3.0.4/drivers/scsi/hosts.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hosts.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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) -@@ -354,7 +354,7 @@ struct Scsi_Host *scsi_host_alloc(struct - * 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 -urNp linux-3.0.4/drivers/scsi/hpsa.c linux-3.0.4/drivers/scsi/hpsa.c ---- linux-3.0.4/drivers/scsi/hpsa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hpsa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -498,7 +498,7 @@ static inline u32 next_command(struct ct - 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 */ -@@ -2938,7 +2938,7 @@ 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; - } -@@ -2948,7 +2948,7 @@ 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); -@@ -2957,17 +2957,17 @@ 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); - } - -@@ -3857,7 +3857,7 @@ static int __devinit hpsa_pci_init(struc - 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"); -@@ -4134,7 +4134,7 @@ 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; -@@ -4168,7 +4168,7 @@ 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, -@@ -4187,9 +4187,9 @@ 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) -@@ -4210,7 +4210,7 @@ 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 */ -@@ -4263,7 +4263,7 @@ static void hpsa_shutdown(struct pci_dev - * 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) -@@ -4426,7 +4426,7 @@ static __devinit void hpsa_enter_perform - 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 -urNp linux-3.0.4/drivers/scsi/hpsa.h linux-3.0.4/drivers/scsi/hpsa.h ---- linux-3.0.4/drivers/scsi/hpsa.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hpsa.h 2011-08-23 21:47:55.000000000 -0400 -@@ -73,7 +73,7 @@ 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 -urNp linux-3.0.4/drivers/scsi/ips.h linux-3.0.4/drivers/scsi/ips.h ---- linux-3.0.4/drivers/scsi/ips.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/ips.h 2011-08-23 21:47:55.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/scsi/libfc/fc_exch.c linux-3.0.4/drivers/scsi/libfc/fc_exch.c ---- linux-3.0.4/drivers/scsi/libfc/fc_exch.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/libfc/fc_exch.c 2011-08-23 21:47:55.000000000 -0400 -@@ -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; - }; - -@@ -700,7 +700,7 @@ static struct fc_exch *fc_exch_em_alloc( - /* 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)); -@@ -761,7 +761,7 @@ 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; - } -@@ -906,7 +906,7 @@ static enum fc_pf_rjt_reason fc_seq_look - 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; - } -@@ -936,7 +936,7 @@ static enum fc_pf_rjt_reason fc_seq_look - 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; - } -@@ -947,7 +947,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } - 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; - } -@@ -964,7 +964,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } 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); - reject = FC_RJT_SEQ_ID; /* sequence/exch should exist */ - goto rel; - } -@@ -1392,22 +1392,22 @@ static void fc_exch_recv_seq_resp(struct - - 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); -@@ -1416,7 +1416,7 @@ static void fc_exch_recv_seq_resp(struct - 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; - } - -@@ -1480,9 +1480,9 @@ static void fc_exch_recv_resp(struct fc_ - 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 -urNp linux-3.0.4/drivers/scsi/libsas/sas_ata.c linux-3.0.4/drivers/scsi/libsas/sas_ata.c ---- linux-3.0.4/drivers/scsi/libsas/sas_ata.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/libsas/sas_ata.c 2011-08-23 21:47:55.000000000 -0400 -@@ -368,7 +368,7 @@ static struct ata_port_operations sas_sa - .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 -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -104,7 +104,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_ - - #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 */ -@@ -141,7 +141,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_v - 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; -@@ -202,7 +202,7 @@ lpfc_debugfs_slow_ring_trc_data(struct l - 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; -@@ -380,6 +380,8 @@ lpfc_debugfs_dumpHBASlim_data(struct lpf - uint32_t *ptr; - char buffer[1024]; - -+ pax_track_stack(); -+ - off = 0; - spin_lock_irq(&phba->hbalock); - -@@ -617,14 +619,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport - !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; -@@ -655,14 +657,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_h - !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; -@@ -2606,7 +2608,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor - "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)); -@@ -2652,7 +2654,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor - "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 -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc.h linux-3.0.4/drivers/scsi/lpfc/lpfc.h ---- linux-3.0.4/drivers/scsi/lpfc/lpfc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -420,7 +420,7 @@ 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; -@@ -841,7 +841,7 @@ struct lpfc_hba { - struct dentry *debug_dumpDif; /* BlockGuard BPL*/ - 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 -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c 2011-08-23 21:47:56.000000000 -0400 -@@ -9923,8 +9923,10 @@ lpfc_init(void) - printk(LPFC_COPYRIGHT "\n"); - - 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 -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -297,7 +297,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hb - 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) { -@@ -338,7 +338,7 @@ lpfc_rampup_queue_depth(struct lpfc_vpor - 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; -@@ -382,8 +382,8 @@ lpfc_ramp_down_queue_handler(struct lpfc - 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) -@@ -403,8 +403,8 @@ lpfc_ramp_down_queue_handler(struct lpfc - } - } - 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); - } - - /** -@@ -438,8 +438,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_h - } - } - 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 -urNp linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c ---- linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3503,6 +3503,8 @@ megaraid_cmm_register(adapter_t *adapter - int rval; - int i; - -+ pax_track_stack(); -+ - // Allocate memory for the base list of scb for management module. - adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL); - -diff -urNp linux-3.0.4/drivers/scsi/osd/osd_initiator.c linux-3.0.4/drivers/scsi/osd/osd_initiator.c ---- linux-3.0.4/drivers/scsi/osd/osd_initiator.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/osd/osd_initiator.c 2011-08-23 21:48:14.000000000 -0400 -@@ -97,6 +97,8 @@ static int _osd_get_print_system_info(st - int nelem = ARRAY_SIZE(get_attrs), a = 0; - int ret; - -+ pax_track_stack(); -+ - or = osd_start_request(od, GFP_KERNEL); - if (!or) - return -ENOMEM; -diff -urNp linux-3.0.4/drivers/scsi/pmcraid.c linux-3.0.4/drivers/scsi/pmcraid.c ---- linux-3.0.4/drivers/scsi/pmcraid.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/pmcraid.c 2011-08-23 21:47:56.000000000 -0400 -@@ -201,8 +201,8 @@ static int pmcraid_slave_alloc(struct sc - 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); -@@ -2677,9 +2677,9 @@ static int pmcraid_error_handler(struct - - /* 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) { -@@ -3535,7 +3535,7 @@ 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; - -@@ -3860,7 +3860,7 @@ 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) { -@@ -4498,7 +4498,7 @@ static void pmcraid_worker_function(stru - - 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); -@@ -5332,8 +5332,8 @@ static int __devinit pmcraid_init_instan - 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); -@@ -6048,7 +6048,7 @@ 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 -urNp linux-3.0.4/drivers/scsi/pmcraid.h linux-3.0.4/drivers/scsi/pmcraid.h ---- linux-3.0.4/drivers/scsi/pmcraid.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/pmcraid.h 2011-08-23 21:47:56.000000000 -0400 -@@ -749,7 +749,7 @@ 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; -@@ -778,7 +778,7 @@ struct pmcraid_instance { - atomic_t outstanding_cmds; - - /* should add/delete resources to mid-layer now ?*/ -- atomic_t expose_resources; -+ atomic_unchecked_t expose_resources; - - - -@@ -814,8 +814,8 @@ 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 -urNp linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h ---- linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -2244,7 +2244,7 @@ struct isp_operations { - int (*get_flash_version) (struct scsi_qla_host *, void *); - int (*start_scsi) (srb_t *); - int (*abort_isp) (struct scsi_qla_host *); --}; -+} __no_const; - - /* MSI-X Support *************************************************************/ - -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -256,7 +256,7 @@ struct ddb_entry { - atomic_t retry_relogin_timer; /* Min Time between relogins - * (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 */ - - uint16_t port; -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c 2011-08-23 21:47:56.000000000 -0400 -@@ -680,7 +680,7 @@ static struct ddb_entry * qla4xxx_alloc_ - ddb_entry->fw_ddb_index = fw_ddb_index; - 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); - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - list_add_tail(&ddb_entry->list, &ha->ddb_list); - ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; -@@ -1433,7 +1433,7 @@ int qla4xxx_process_ddb_changed(struct s - if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && - (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); -- atomic_set(&ddb_entry->relogin_retry_count, 0); -+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); - atomic_set(&ddb_entry->relogin_timer, 0); - clear_bit(DF_RELOGIN, &ddb_entry->flags); - iscsi_unblock_session(ddb_entry->sess); -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c 2011-08-23 21:47:56.000000000 -0400 -@@ -811,13 +811,13 @@ static void qla4xxx_timer(struct scsi_ql - ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_FAILED) { - /* Reset retry relogin timer */ -- atomic_inc(&ddb_entry->relogin_retry_count); -+ atomic_inc_unchecked(&ddb_entry->relogin_retry_count); - DEBUG2(printk("scsi%ld: ddb [%d] relogin" - " timed out-retrying" - " relogin (%d)\n", - ha->host_no, - ddb_entry->fw_ddb_index, -- atomic_read(&ddb_entry-> -+ atomic_read_unchecked(&ddb_entry-> - relogin_retry_count)) - ); - start_dpc++; -diff -urNp linux-3.0.4/drivers/scsi/scsi.c linux-3.0.4/drivers/scsi/scsi.c ---- linux-3.0.4/drivers/scsi/scsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -655,7 +655,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd * - 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 -urNp linux-3.0.4/drivers/scsi/scsi_debug.c linux-3.0.4/drivers/scsi/scsi_debug.c ---- linux-3.0.4/drivers/scsi/scsi_debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1493,6 +1493,8 @@ static int resp_mode_select(struct scsi_ - unsigned char arr[SDEBUG_MAX_MSELECT_SZ]; - unsigned char *cmd = (unsigned char *)scp->cmnd; - -+ pax_track_stack(); -+ - if ((errsts = check_readiness(scp, 1, devip))) - return errsts; - memset(arr, 0, sizeof(arr)); -@@ -1590,6 +1592,8 @@ static int resp_log_sense(struct scsi_cm - unsigned char arr[SDEBUG_MAX_LSENSE_SZ]; - unsigned char *cmd = (unsigned char *)scp->cmnd; - -+ pax_track_stack(); -+ - if ((errsts = check_readiness(scp, 1, devip))) - return errsts; - memset(arr, 0, sizeof(arr)); -diff -urNp linux-3.0.4/drivers/scsi/scsi_lib.c linux-3.0.4/drivers/scsi/scsi_lib.c ---- linux-3.0.4/drivers/scsi/scsi_lib.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_lib.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1412,7 +1412,7 @@ static void scsi_kill_request(struct req - 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(), -@@ -1438,9 +1438,9 @@ static void scsi_softirq_done(struct req - - 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 -urNp linux-3.0.4/drivers/scsi/scsi_sysfs.c linux-3.0.4/drivers/scsi/scsi_sysfs.c ---- linux-3.0.4/drivers/scsi/scsi_sysfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_sysfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -622,7 +622,7 @@ show_iostat_##field(struct device *dev, - 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 -urNp linux-3.0.4/drivers/scsi/scsi_transport_fc.c linux-3.0.4/drivers/scsi/scsi_transport_fc.c ---- linux-3.0.4/drivers/scsi/scsi_transport_fc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_fc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -484,7 +484,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_ - * 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 -@@ -497,7 +497,7 @@ 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); - -@@ -645,7 +645,7 @@ 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) -@@ -835,7 +835,7 @@ static int fc_str_to_dev_loss(const char - 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 -urNp linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c ---- linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -83,7 +83,7 @@ struct iscsi_internal { - struct device_attribute *session_attrs[ISCSI_SESSION_ATTRS + 1]; - }; - --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; - - /* -@@ -761,7 +761,7 @@ int iscsi_add_session(struct iscsi_cls_s - 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 (id == ISCSI_MAX_TARGET) { - for (id = 0; id < ISCSI_MAX_TARGET; id++) { -@@ -2200,7 +2200,7 @@ static __init int iscsi_transport_init(v - 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 -urNp linux-3.0.4/drivers/scsi/scsi_transport_srp.c linux-3.0.4/drivers/scsi/scsi_transport_srp.c ---- linux-3.0.4/drivers/scsi/scsi_transport_srp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_srp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 transpo - 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 S - 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 -urNp linux-3.0.4/drivers/scsi/sg.c linux-3.0.4/drivers/scsi/sg.c ---- linux-3.0.4/drivers/scsi/sg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/sg.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2310,7 +2310,7 @@ 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}, -@@ -2325,7 +2325,7 @@ sg_proc_init(void) - { - int k, mask; - int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr); -- struct sg_proc_leaf * leaf; -+ const struct sg_proc_leaf * leaf; - - sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL); - if (!sg_proc_sgp) -diff -urNp linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c ---- linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1756,6 +1756,8 @@ static int __devinit sym2_probe(struct p - int do_iounmap = 0; - int do_disable_device = 1; - -+ pax_track_stack(); -+ - memset(&sym_dev, 0, sizeof(sym_dev)); - memset(&nvram, 0, sizeof(nvram)); - sym_dev.pdev = pdev; -diff -urNp linux-3.0.4/drivers/scsi/vmw_pvscsi.c linux-3.0.4/drivers/scsi/vmw_pvscsi.c ---- linux-3.0.4/drivers/scsi/vmw_pvscsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/vmw_pvscsi.c 2011-08-23 21:48:14.000000000 -0400 -@@ -447,6 +447,8 @@ static void pvscsi_setup_all_rings(const - dma_addr_t base; - unsigned i; - -+ pax_track_stack(); -+ - cmd.ringsStatePPN = adapter->ringStatePA >> PAGE_SHIFT; - cmd.reqRingNumPages = adapter->req_pages; - cmd.cmpRingNumPages = adapter->cmp_pages; -diff -urNp linux-3.0.4/drivers/spi/spi.c linux-3.0.4/drivers/spi/spi.c ---- linux-3.0.4/drivers/spi/spi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/spi/spi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1023,7 +1023,7 @@ int spi_bus_unlock(struct spi_master *ma - 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 -urNp linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c ---- linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-08-23 21:48:14.000000000 -0400 -@@ -362,7 +362,7 @@ static struct ar_cookie s_ar_cookie_mem[ - (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_HOST_INTEREST_ITEM_ADDRESS(item) : 0)) - - --static struct net_device_ops ar6000_netdev_ops = { -+static net_device_ops_no_const ar6000_netdev_ops = { - .ndo_init = NULL, - .ndo_open = ar6000_open, - .ndo_stop = ar6000_close, -diff -urNp linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h ---- linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -30,7 +30,7 @@ typedef bool (*ar6k_pal_recv_pkt_t)(void - typedef struct ar6k_pal_config_s - { - ar6k_pal_recv_pkt_t fpar6k_pal_recv_pkt; --}ar6k_pal_config_t; -+} __no_const ar6k_pal_config_t; - - void register_pal_cb(ar6k_pal_config_t *palConfig_p); - #endif /* _AR6K_PAL_H_ */ -diff -urNp linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c ---- linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-08-23 21:47:56.000000000 -0400 -@@ -853,14 +853,14 @@ static void dhd_op_if(dhd_if_t *ifp) - free_netdev(ifp->net); - } - /* Allocate etherdev, including space for private structure */ -- ifp->net = alloc_etherdev(sizeof(dhd)); -+ ifp->net = alloc_etherdev(sizeof(*dhd)); - if (!ifp->net) { - DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); - ret = -ENOMEM; - } - if (ret == 0) { - strcpy(ifp->net->name, ifp->name); -- memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(ifp->net), dhd, sizeof(*dhd)); - err = dhd_net_attach(&dhd->pub, ifp->idx); - if (err != 0) { - DHD_ERROR(("%s: dhd_net_attach failed, " -@@ -1872,7 +1872,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - strcpy(nv_path, nvram_path); - - /* Allocate etherdev, including space for private structure */ -- net = alloc_etherdev(sizeof(dhd)); -+ net = alloc_etherdev(sizeof(*dhd)); - if (!net) { - DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); - goto fail; -@@ -1888,7 +1888,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - /* - * Save the dhd_info into the priv - */ -- memcpy(netdev_priv(net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(net), dhd, sizeof(*dhd)); - - /* Set network interface name if it was provided as module parameter */ - if (iface_name[0]) { -@@ -2004,7 +2004,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - /* - * Save the dhd_info into the priv - */ -- memcpy(netdev_priv(net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(net), dhd, sizeof(*dhd)); - - #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) - g_bus = bus; -diff -urNp linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h ---- linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h 2011-08-23 21:47:56.000000000 -0400 -@@ -593,7 +593,7 @@ struct phy_func_ptr { - initfn_t carrsuppr; - rxsigpwrfn_t rxsigpwr; - detachfn_t detach; --}; -+} __no_const; - typedef struct phy_func_ptr phy_func_ptr_t; - - struct phy_info { -diff -urNp linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h ---- linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h 2011-08-23 21:47:56.000000000 -0400 -@@ -185,7 +185,7 @@ typedef struct { - u16 func, uint bustype, void *regsva, void *param); - /* detach from device */ - void (*detach) (void *ch); --} bcmsdh_driver_t; -+} __no_const bcmsdh_driver_t; - - /* platform specific/high level functions */ - extern int bcmsdh_register(bcmsdh_driver_t *driver); -diff -urNp linux-3.0.4/drivers/staging/et131x/et1310_tx.c linux-3.0.4/drivers/staging/et131x/et1310_tx.c ---- linux-3.0.4/drivers/staging/et131x/et1310_tx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/et131x/et1310_tx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -635,11 +635,11 @@ inline void et131x_free_send_packet(stru - struct net_device_stats *stats = &etdev->net_stats; - - if (tcb->flags & fMP_DEST_BROAD) -- atomic_inc(&etdev->Stats.brdcstxmt); -+ atomic_inc_unchecked(&etdev->Stats.brdcstxmt); - else if (tcb->flags & fMP_DEST_MULTI) -- atomic_inc(&etdev->Stats.multixmt); -+ atomic_inc_unchecked(&etdev->Stats.multixmt); - else -- atomic_inc(&etdev->Stats.unixmt); -+ atomic_inc_unchecked(&etdev->Stats.unixmt); - - if (tcb->skb) { - stats->tx_bytes += tcb->skb->len; -diff -urNp linux-3.0.4/drivers/staging/et131x/et131x_adapter.h linux-3.0.4/drivers/staging/et131x/et131x_adapter.h ---- linux-3.0.4/drivers/staging/et131x/et131x_adapter.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/et131x/et131x_adapter.h 2011-08-23 21:47:56.000000000 -0400 -@@ -110,11 +110,11 @@ typedef struct _ce_stats_t { - * operations - */ - u32 unircv; /* # multicast packets received */ -- atomic_t unixmt; /* # multicast packets for Tx */ -+ atomic_unchecked_t unixmt; /* # multicast packets for Tx */ - u32 multircv; /* # multicast packets received */ -- atomic_t multixmt; /* # multicast packets for Tx */ -+ atomic_unchecked_t multixmt; /* # multicast packets for Tx */ - u32 brdcstrcv; /* # broadcast packets received */ -- atomic_t brdcstxmt; /* # broadcast packets for Tx */ -+ atomic_unchecked_t brdcstxmt; /* # broadcast packets for Tx */ - u32 norcvbuf; /* # Rx packets discarded */ - u32 noxmtbuf; /* # Tx packets discarded */ - -diff -urNp linux-3.0.4/drivers/staging/hv/channel.c linux-3.0.4/drivers/staging/hv/channel.c ---- linux-3.0.4/drivers/staging/hv/channel.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/channel.c 2011-08-23 21:47:56.000000000 -0400 -@@ -433,8 +433,8 @@ int vmbus_establish_gpadl(struct vmbus_c - 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 -urNp linux-3.0.4/drivers/staging/hv/hv.c linux-3.0.4/drivers/staging/hv/hv.c ---- linux-3.0.4/drivers/staging/hv/hv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, voi - u64 output_address = (output) ? virt_to_phys(output) : 0; - u32 output_address_hi = output_address >> 32; - u32 output_address_lo = output_address & 0xFFFFFFFF; -- volatile void *hypercall_page = hv_context.hypercall_page; -+ volatile 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 -urNp linux-3.0.4/drivers/staging/hv/hv_mouse.c linux-3.0.4/drivers/staging/hv/hv_mouse.c ---- linux-3.0.4/drivers/staging/hv/hv_mouse.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hv_mouse.c 2011-08-23 21:47:56.000000000 -0400 -@@ -879,8 +879,10 @@ static void reportdesc_callback(struct h - if (hid_dev) { - DPRINT_INFO(INPUTVSC_DRV, "hid_device created"); - -- hid_dev->ll_driver->open = mousevsc_hid_open; -- hid_dev->ll_driver->close = mousevsc_hid_close; -+ pax_open_kernel(); -+ *(void **)&hid_dev->ll_driver->open = mousevsc_hid_open; -+ *(void **)&hid_dev->ll_driver->close = mousevsc_hid_close; -+ pax_close_kernel(); - - hid_dev->bus = BUS_VIRTUAL; - hid_dev->vendor = input_device_ctx->device_info.vendor; -diff -urNp linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h ---- linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h 2011-08-23 21:47:56.000000000 -0400 -@@ -559,7 +559,7 @@ 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 -urNp linux-3.0.4/drivers/staging/hv/rndis_filter.c linux-3.0.4/drivers/staging/hv/rndis_filter.c ---- linux-3.0.4/drivers/staging/hv/rndis_filter.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/rndis_filter.c 2011-08-23 21:47:56.000000000 -0400 -@@ -43,7 +43,7 @@ struct rndis_device { - - enum rndis_device_state state; - u32 link_stat; -- atomic_t new_req_id; -+ atomic_unchecked_t new_req_id; - - spinlock_t request_lock; - struct list_head req_list; -@@ -117,7 +117,7 @@ static struct rndis_request *get_rndis_r - * 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); -@@ -637,7 +637,7 @@ static void rndis_filter_halt_device(str - - /* 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 -urNp linux-3.0.4/drivers/staging/hv/vmbus_drv.c linux-3.0.4/drivers/staging/hv/vmbus_drv.c ---- linux-3.0.4/drivers/staging/hv/vmbus_drv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/vmbus_drv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -668,11 +668,11 @@ int vmbus_child_device_register(struct h - { - int ret = 0; - -- static atomic_t device_num = ATOMIC_INIT(0); -+ static atomic_unchecked_t device_num = ATOMIC_INIT(0); - - /* Set the device name. Otherwise, device_register() will fail. */ - dev_set_name(&child_device_obj->device, "vmbus_0_%d", -- atomic_inc_return(&device_num)); -+ atomic_inc_return_unchecked(&device_num)); - - /* The new device belongs to this bus */ - child_device_obj->device.bus = &hv_bus; /* device->dev.bus; */ -diff -urNp linux-3.0.4/drivers/staging/iio/ring_generic.h linux-3.0.4/drivers/staging/iio/ring_generic.h ---- linux-3.0.4/drivers/staging/iio/ring_generic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/iio/ring_generic.h 2011-08-23 21:47:56.000000000 -0400 -@@ -62,7 +62,7 @@ struct iio_ring_access_funcs { - - int (*is_enabled)(struct iio_ring_buffer *ring); - int (*enable)(struct iio_ring_buffer *ring); --}; -+} __no_const; - - struct iio_ring_setup_ops { - int (*preenable)(struct iio_dev *); -diff -urNp linux-3.0.4/drivers/staging/octeon/ethernet.c linux-3.0.4/drivers/staging/octeon/ethernet.c ---- linux-3.0.4/drivers/staging/octeon/ethernet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/octeon/ethernet.c 2011-08-23 21:47:56.000000000 -0400 -@@ -258,11 +258,11 @@ static struct net_device_stats *cvm_oct_ - * 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 -urNp linux-3.0.4/drivers/staging/octeon/ethernet-rx.c linux-3.0.4/drivers/staging/octeon/ethernet-rx.c ---- linux-3.0.4/drivers/staging/octeon/ethernet-rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/octeon/ethernet-rx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -417,11 +417,11 @@ static int cvm_oct_napi_poll(struct napi - /* 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); -@@ -433,9 +433,9 @@ static int cvm_oct_napi_poll(struct napi - 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 -urNp linux-3.0.4/drivers/staging/pohmelfs/inode.c linux-3.0.4/drivers/staging/pohmelfs/inode.c ---- linux-3.0.4/drivers/staging/pohmelfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1856,7 +1856,7 @@ static int pohmelfs_fill_super(struct su - mutex_init(&psb->mcache_lock); - psb->mcache_root = RB_ROOT; - psb->mcache_timeout = msecs_to_jiffies(5000); -- atomic_long_set(&psb->mcache_gen, 0); -+ atomic_long_set_unchecked(&psb->mcache_gen, 0); - - psb->trans_max_pages = 100; - -@@ -1871,7 +1871,7 @@ static int pohmelfs_fill_super(struct su - INIT_LIST_HEAD(&psb->crypto_ready_list); - INIT_LIST_HEAD(&psb->crypto_active_list); - -- atomic_set(&psb->trans_gen, 1); -+ atomic_set_unchecked(&psb->trans_gen, 1); - atomic_long_set(&psb->total_inodes, 0); - - mutex_init(&psb->state_lock); -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/mcache.c linux-3.0.4/drivers/staging/pohmelfs/mcache.c ---- linux-3.0.4/drivers/staging/pohmelfs/mcache.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/mcache.c 2011-08-23 21:47:56.000000000 -0400 -@@ -121,7 +121,7 @@ struct pohmelfs_mcache *pohmelfs_mcache_ - m->data = data; - m->start = start; - m->size = size; -- m->gen = atomic_long_inc_return(&psb->mcache_gen); -+ m->gen = atomic_long_inc_return_unchecked(&psb->mcache_gen); - - mutex_lock(&psb->mcache_lock); - err = pohmelfs_mcache_insert(psb, m); -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/netfs.h linux-3.0.4/drivers/staging/pohmelfs/netfs.h ---- linux-3.0.4/drivers/staging/pohmelfs/netfs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/netfs.h 2011-08-23 21:47:56.000000000 -0400 -@@ -571,14 +571,14 @@ struct pohmelfs_config; - struct pohmelfs_sb { - struct rb_root mcache_root; - struct mutex mcache_lock; -- atomic_long_t mcache_gen; -+ atomic_long_unchecked_t mcache_gen; - unsigned long mcache_timeout; - - unsigned int idx; - - unsigned int trans_retries; - -- atomic_t trans_gen; -+ atomic_unchecked_t trans_gen; - - unsigned int crypto_attached_size; - unsigned int crypto_align_size; -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/trans.c linux-3.0.4/drivers/staging/pohmelfs/trans.c ---- linux-3.0.4/drivers/staging/pohmelfs/trans.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/trans.c 2011-08-23 21:47:56.000000000 -0400 -@@ -492,7 +492,7 @@ int netfs_trans_finish(struct netfs_tran - int err; - struct netfs_cmd *cmd = t->iovec.iov_base; - -- t->gen = atomic_inc_return(&psb->trans_gen); -+ t->gen = atomic_inc_return_unchecked(&psb->trans_gen); - - cmd->size = t->iovec.iov_len - sizeof(struct netfs_cmd) + - t->attached_size + t->attached_pages * sizeof(struct netfs_cmd); -diff -urNp linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h ---- linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h 2011-08-23 21:47:56.000000000 -0400 -@@ -83,7 +83,7 @@ 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 -urNp linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c ---- linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c 2011-08-24 18:21:41.000000000 -0400 -@@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, s - 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 -urNp linux-3.0.4/drivers/staging/tty/stallion.c linux-3.0.4/drivers/staging/tty/stallion.c ---- linux-3.0.4/drivers/staging/tty/stallion.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/tty/stallion.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2406,6 +2406,8 @@ static int stl_getportstruct(struct stlp - struct stlport stl_dummyport; - struct stlport *portp; - -+ pax_track_stack(); -+ - if (copy_from_user(&stl_dummyport, arg, sizeof(struct stlport))) - return -EFAULT; - portp = stl_getport(stl_dummyport.brdnr, stl_dummyport.panelnr, -diff -urNp linux-3.0.4/drivers/staging/usbip/usbip_common.h linux-3.0.4/drivers/staging/usbip/usbip_common.h ---- linux-3.0.4/drivers/staging/usbip/usbip_common.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/usbip_common.h 2011-08-23 21:47:56.000000000 -0400 -@@ -315,7 +315,7 @@ struct usbip_device { - void (*shutdown)(struct usbip_device *); - void (*reset)(struct usbip_device *); - void (*unusable)(struct usbip_device *); -- } eh_ops; -+ } __no_const eh_ops; - }; - - void usbip_pack_pdu(struct usbip_header *pdu, struct urb *urb, int cmd, -diff -urNp linux-3.0.4/drivers/staging/usbip/vhci.h linux-3.0.4/drivers/staging/usbip/vhci.h ---- linux-3.0.4/drivers/staging/usbip/vhci.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci.h 2011-08-23 21:47:56.000000000 -0400 -@@ -94,7 +94,7 @@ struct vhci_hcd { - unsigned resuming:1; - unsigned long re_timeout; - -- atomic_t seqnum; -+ atomic_unchecked_t seqnum; - - /* - * NOTE: -diff -urNp linux-3.0.4/drivers/staging/usbip/vhci_hcd.c linux-3.0.4/drivers/staging/usbip/vhci_hcd.c ---- linux-3.0.4/drivers/staging/usbip/vhci_hcd.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci_hcd.c 2011-08-23 21:47:56.000000000 -0400 -@@ -511,7 +511,7 @@ 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"); - -@@ -765,7 +765,7 @@ static int vhci_urb_dequeue(struct usb_h - 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"); - -@@ -955,7 +955,7 @@ static int vhci_start(struct usb_hcd *hc - 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 -urNp linux-3.0.4/drivers/staging/usbip/vhci_rx.c linux-3.0.4/drivers/staging/usbip/vhci_rx.c ---- linux-3.0.4/drivers/staging/usbip/vhci_rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci_rx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -76,7 +76,7 @@ static void vhci_recv_ret_submit(struct - 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 -urNp linux-3.0.4/drivers/staging/vt6655/hostap.c linux-3.0.4/drivers/staging/vt6655/hostap.c ---- linux-3.0.4/drivers/staging/vt6655/hostap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/vt6655/hostap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -79,14 +79,13 @@ static int msglevel - * - */ - -+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(PSDevic - *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 -urNp linux-3.0.4/drivers/staging/vt6656/hostap.c linux-3.0.4/drivers/staging/vt6656/hostap.c ---- linux-3.0.4/drivers/staging/vt6656/hostap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/vt6656/hostap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -80,14 +80,13 @@ static int msglevel - * - */ - -+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(PSDevic - *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 -urNp linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c ---- linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hf - - struct usbctlx_completor { - int (*complete) (struct usbctlx_completor *); --}; -+} __no_const; - - static int - hfa384x_usbctlx_complete_sync(hfa384x_t *hw, -diff -urNp linux-3.0.4/drivers/staging/zcache/tmem.c linux-3.0.4/drivers/staging/zcache/tmem.c ---- linux-3.0.4/drivers/staging/zcache/tmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/zcache/tmem.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_h - * 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 -urNp linux-3.0.4/drivers/staging/zcache/tmem.h linux-3.0.4/drivers/staging/zcache/tmem.h ---- linux-3.0.4/drivers/staging/zcache/tmem.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/zcache/tmem.h 2011-08-23 21:47:56.000000000 -0400 -@@ -171,6 +171,7 @@ struct tmem_pamops { - int (*get_data)(struct page *, void *, struct tmem_pool *); - void (*free)(void *, struct tmem_pool *); - }; -+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 */ -@@ -180,6 +181,7 @@ 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 -urNp linux-3.0.4/drivers/target/target_core_alua.c linux-3.0.4/drivers/target/target_core_alua.c ---- linux-3.0.4/drivers/target/target_core_alua.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_alua.c 2011-08-23 21:48:14.000000000 -0400 -@@ -675,6 +675,8 @@ static int core_alua_update_tpg_primary_ - char path[ALUA_METADATA_PATH_LEN]; - int len; - -+ pax_track_stack(); -+ - memset(path, 0, ALUA_METADATA_PATH_LEN); - - len = snprintf(md_buf, tg_pt_gp->tg_pt_gp_md_buf_len, -@@ -938,6 +940,8 @@ static int core_alua_update_tpg_secondar - char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN]; - int len; - -+ pax_track_stack(); -+ - memset(path, 0, ALUA_METADATA_PATH_LEN); - memset(wwn, 0, ALUA_SECONDARY_METADATA_WWN_LEN); - -diff -urNp linux-3.0.4/drivers/target/target_core_cdb.c linux-3.0.4/drivers/target/target_core_cdb.c ---- linux-3.0.4/drivers/target/target_core_cdb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_cdb.c 2011-08-23 21:48:14.000000000 -0400 -@@ -838,6 +838,8 @@ target_emulate_modesense(struct se_cmd * - int length = 0; - unsigned char buf[SE_MODE_PAGE_BUF]; - -+ pax_track_stack(); -+ - memset(buf, 0, SE_MODE_PAGE_BUF); - - switch (cdb[2] & 0x3f) { -diff -urNp linux-3.0.4/drivers/target/target_core_configfs.c linux-3.0.4/drivers/target/target_core_configfs.c ---- linux-3.0.4/drivers/target/target_core_configfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_configfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1276,6 +1276,8 @@ static ssize_t target_core_dev_pr_show_a - ssize_t len = 0; - int reg_count = 0, prf_isid; - -+ pax_track_stack(); -+ - if (!(su_dev->se_dev_ptr)) - return -ENODEV; - -diff -urNp linux-3.0.4/drivers/target/target_core_pr.c linux-3.0.4/drivers/target/target_core_pr.c ---- linux-3.0.4/drivers/target/target_core_pr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_pr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -918,6 +918,8 @@ static int __core_scsi3_check_aptpl_regi - unsigned char t_port[PR_APTPL_MAX_TPORT_LEN]; - u16 tpgt; - -+ pax_track_stack(); -+ - memset(i_port, 0, PR_APTPL_MAX_IPORT_LEN); - memset(t_port, 0, PR_APTPL_MAX_TPORT_LEN); - /* -@@ -1861,6 +1863,8 @@ static int __core_scsi3_update_aptpl_buf - ssize_t len = 0; - int reg_count = 0; - -+ pax_track_stack(); -+ - memset(buf, 0, pr_aptpl_buf_len); - /* - * Called to clear metadata once APTPL has been deactivated. -@@ -1983,6 +1987,8 @@ static int __core_scsi3_write_aptpl_to_f - char path[512]; - int ret; - -+ pax_track_stack(); -+ - memset(iov, 0, sizeof(struct iovec)); - memset(path, 0, 512); - -diff -urNp linux-3.0.4/drivers/target/target_core_tmr.c linux-3.0.4/drivers/target/target_core_tmr.c ---- linux-3.0.4/drivers/target/target_core_tmr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_tmr.c 2011-08-23 21:47:56.000000000 -0400 -@@ -269,7 +269,7 @@ int core_tmr_lun_reset( - CMD_TFO(cmd)->get_task_tag(cmd), cmd->pr_res_key, - T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), - atomic_read(&T_TASK(cmd)->t_transport_sent)); -@@ -311,7 +311,7 @@ int core_tmr_lun_reset( - DEBUG_LR("LUN_RESET: got t_transport_active = 1 for" - " task: %p, t_fe_count: %d dev: %p\n", task, - fe_count, dev); -- atomic_set(&T_TASK(cmd)->t_transport_aborted, 1); -+ atomic_set_unchecked(&T_TASK(cmd)->t_transport_aborted, 1); - spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, - flags); - core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); -@@ -321,7 +321,7 @@ int core_tmr_lun_reset( - } - DEBUG_LR("LUN_RESET: Got t_transport_active = 0 for task: %p," - " t_fe_count: %d dev: %p\n", task, fe_count, dev); -- atomic_set(&T_TASK(cmd)->t_transport_aborted, 1); -+ atomic_set_unchecked(&T_TASK(cmd)->t_transport_aborted, 1); - spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags); - core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); - -diff -urNp linux-3.0.4/drivers/target/target_core_transport.c linux-3.0.4/drivers/target/target_core_transport.c ---- linux-3.0.4/drivers/target/target_core_transport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_transport.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1681,7 +1681,7 @@ struct se_device *transport_add_device_t - - dev->queue_depth = dev_limits->queue_depth; - atomic_set(&dev->depth_left, dev->queue_depth); -- atomic_set(&dev->dev_ordered_id, 0); -+ atomic_set_unchecked(&dev->dev_ordered_id, 0); - - se_dev_set_default_attribs(dev, dev_limits); - -@@ -1882,7 +1882,7 @@ static int transport_check_alloc_task_at - * Used to determine when ORDERED commands should go from - * Dormant to Active status. - */ -- cmd->se_ordered_id = atomic_inc_return(&SE_DEV(cmd)->dev_ordered_id); -+ cmd->se_ordered_id = atomic_inc_return_unchecked(&SE_DEV(cmd)->dev_ordered_id); - smp_mb__after_atomic_inc(); - DEBUG_STA("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", - cmd->se_ordered_id, cmd->sam_task_attr, -@@ -2169,7 +2169,7 @@ static void transport_generic_request_fa - " t_transport_active: %d t_transport_stop: %d" - " t_transport_sent: %d\n", T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_task_cdbs_ex_left), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), -@@ -2673,9 +2673,9 @@ check_depth: - spin_lock_irqsave(&T_TASK(cmd)->t_state_lock, flags); - atomic_set(&task->task_active, 1); - atomic_set(&task->task_sent, 1); -- atomic_inc(&T_TASK(cmd)->t_task_cdbs_sent); -+ atomic_inc_unchecked(&T_TASK(cmd)->t_task_cdbs_sent); - -- if (atomic_read(&T_TASK(cmd)->t_task_cdbs_sent) == -+ if (atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent) == - T_TASK(cmd)->t_task_cdbs) - atomic_set(&cmd->transport_sent, 1); - -@@ -5568,7 +5568,7 @@ static void transport_generic_wait_for_t - atomic_set(&T_TASK(cmd)->transport_lun_stop, 0); - } - if (!atomic_read(&T_TASK(cmd)->t_transport_active) || -- atomic_read(&T_TASK(cmd)->t_transport_aborted)) -+ atomic_read_unchecked(&T_TASK(cmd)->t_transport_aborted)) - goto remove; - - atomic_set(&T_TASK(cmd)->t_transport_stop, 1); -@@ -5797,7 +5797,7 @@ int transport_check_aborted_status(struc - { - int ret = 0; - -- if (atomic_read(&T_TASK(cmd)->t_transport_aborted) != 0) { -+ if (atomic_read_unchecked(&T_TASK(cmd)->t_transport_aborted) != 0) { - if (!(send_status) || - (cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS)) - return 1; -@@ -5825,7 +5825,7 @@ void transport_send_task_abort(struct se - */ - if (cmd->data_direction == DMA_TO_DEVICE) { - if (CMD_TFO(cmd)->write_pending_status(cmd) != 0) { -- atomic_inc(&T_TASK(cmd)->t_transport_aborted); -+ atomic_inc_unchecked(&T_TASK(cmd)->t_transport_aborted); - smp_mb__after_atomic_inc(); - cmd->scsi_status = SAM_STAT_TASK_ABORTED; - transport_new_cmd_failure(cmd); -@@ -5949,7 +5949,7 @@ static void transport_processing_shutdow - CMD_TFO(cmd)->get_task_tag(cmd), - T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), - atomic_read(&T_TASK(cmd)->t_transport_sent)); -diff -urNp linux-3.0.4/drivers/telephony/ixj.c linux-3.0.4/drivers/telephony/ixj.c ---- linux-3.0.4/drivers/telephony/ixj.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/telephony/ixj.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4976,6 +4976,8 @@ static int ixj_daa_cid_read(IXJ *j) - bool mContinue; - char *pIn, *pOut; - -+ pax_track_stack(); -+ - if (!SCI_Prepare(j)) - return 0; - -diff -urNp linux-3.0.4/drivers/tty/hvc/hvcs.c linux-3.0.4/drivers/tty/hvc/hvcs.c ---- linux-3.0.4/drivers/tty/hvc/hvcs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/hvc/hvcs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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(st - - 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"); -@@ -1145,7 +1146,7 @@ static int hvcs_open(struct tty_struct * - 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; - -@@ -1179,7 +1180,7 @@ 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); - -@@ -1223,7 +1224,7 @@ static void hvcs_close(struct tty_struct - 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); - -@@ -1249,10 +1250,10 @@ static void hvcs_close(struct tty_struct - 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); -@@ -1268,7 +1269,7 @@ static void hvcs_hangup(struct tty_struc - - 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 -@@ -1283,7 +1284,7 @@ static void hvcs_hangup(struct tty_struc - 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. */ -@@ -1354,7 +1355,7 @@ static int hvcs_write(struct tty_struct - * 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; - } -@@ -1428,7 +1429,7 @@ static int hvcs_write_room(struct tty_st - { - 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 -urNp linux-3.0.4/drivers/tty/ipwireless/tty.c linux-3.0.4/drivers/tty/ipwireless/tty.c ---- linux-3.0.4/drivers/tty/ipwireless/tty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/ipwireless/tty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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; -@@ -127,10 +128,10 @@ static int ipw_open(struct tty_struct *l - 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; -@@ -146,9 +147,7 @@ static int ipw_open(struct tty_struct *l - - 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) { -@@ -169,7 +168,7 @@ static void ipw_hangup(struct tty_struct - 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; - } -@@ -198,7 +197,7 @@ void ipwireless_tty_received(struct ipw_ - return; - } - -- if (!tty->open_count) { -+ if (!local_read(&tty->open_count)) { - mutex_unlock(&tty->ipw_tty_mutex); - return; - } -@@ -240,7 +239,7 @@ static int ipw_write(struct tty_struct * - 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; - } -@@ -280,7 +279,7 @@ static int ipw_write_room(struct tty_str - 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; -@@ -322,7 +321,7 @@ static int ipw_chars_in_buffer(struct tt - if (!tty) - return 0; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return 0; - - return tty->tx_bytes_queued; -@@ -403,7 +402,7 @@ static int ipw_tiocmget(struct tty_struc - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return get_control_lines(tty); -@@ -419,7 +418,7 @@ ipw_tiocmset(struct tty_struct *linux_tt - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return set_control_lines(tty, set, clear); -@@ -433,7 +432,7 @@ static int ipw_ioctl(struct tty_struct * - 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 .. */ -@@ -582,7 +581,7 @@ void ipwireless_tty_free(struct ipw_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 -urNp linux-3.0.4/drivers/tty/n_gsm.c linux-3.0.4/drivers/tty/n_gsm.c ---- linux-3.0.4/drivers/tty/n_gsm.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/drivers/tty/n_gsm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1589,7 +1589,7 @@ static struct gsm_dlci *gsm_dlci_alloc(s - return NULL; - spin_lock_init(&dlci->lock); - 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 -urNp linux-3.0.4/drivers/tty/n_tty.c linux-3.0.4/drivers/tty/n_tty.c ---- linux-3.0.4/drivers/tty/n_tty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/n_tty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2123,6 +2123,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ - { - *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 -urNp linux-3.0.4/drivers/tty/pty.c linux-3.0.4/drivers/tty/pty.c ---- linux-3.0.4/drivers/tty/pty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/pty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -754,8 +754,10 @@ static void __init unix98_pty_init(void) - register_sysctl_table(pty_root_table); - - /* 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 -urNp linux-3.0.4/drivers/tty/rocket.c linux-3.0.4/drivers/tty/rocket.c ---- linux-3.0.4/drivers/tty/rocket.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/rocket.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1277,6 +1277,8 @@ static int get_ports(struct r_port *info - struct rocket_ports tmp; - int board; - -+ pax_track_stack(); -+ - if (!retports) - return -EFAULT; - memset(&tmp, 0, sizeof (tmp)); -diff -urNp linux-3.0.4/drivers/tty/serial/kgdboc.c linux-3.0.4/drivers/tty/serial/kgdboc.c ---- linux-3.0.4/drivers/tty/serial/kgdboc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/serial/kgdboc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -23,8 +23,9 @@ - #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]; -@@ -147,6 +148,8 @@ 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) -@@ -156,13 +159,13 @@ 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; -@@ -183,7 +186,7 @@ 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; -@@ -193,12 +196,16 @@ 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: -@@ -212,7 +219,7 @@ noconfig: - static int __init init_kgdboc(void) - { - /* Already configured? */ -- if (configured == 1) -+ if (configured >= 1) - return 0; - - return configure_kgdboc(); -@@ -261,7 +268,7 @@ static int param_set_kgdboc_var(const ch - if (config[len - 1] == '\n') - config[len - 1] = '\0'; - -- if (configured == 1) -+ if (configured >= 1) - cleanup_kgdboc(); - - /* Go and configure with the new params. */ -@@ -301,6 +308,15 @@ 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 -urNp linux-3.0.4/drivers/tty/serial/mrst_max3110.c linux-3.0.4/drivers/tty/serial/mrst_max3110.c ---- linux-3.0.4/drivers/tty/serial/mrst_max3110.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/serial/mrst_max3110.c 2011-08-23 21:48:14.000000000 -0400 -@@ -393,6 +393,8 @@ static void max3110_con_receive(struct u - int loop = 1, num, total = 0; - u8 recv_buf[512], *pbuf; - -+ pax_track_stack(); -+ - pbuf = recv_buf; - do { - num = max3110_read_multi(max, pbuf); -diff -urNp linux-3.0.4/drivers/tty/tty_io.c linux-3.0.4/drivers/tty/tty_io.c ---- linux-3.0.4/drivers/tty/tty_io.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/tty_io.c 2011-08-23 21:47:56.000000000 -0400 -@@ -3215,7 +3215,7 @@ 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 -urNp linux-3.0.4/drivers/tty/tty_ldisc.c linux-3.0.4/drivers/tty/tty_ldisc.c ---- linux-3.0.4/drivers/tty/tty_ldisc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/tty_ldisc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -74,7 +74,7 @@ static void put_ldisc(struct tty_ldisc * - 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); - -@@ -109,7 +109,7 @@ int tty_register_ldisc(int disc, struct - 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; -@@ -137,7 +137,7 @@ 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; -@@ -158,7 +158,7 @@ static struct tty_ldisc_ops *get_ldops(i - if (ldops) { - ret = ERR_PTR(-EAGAIN); - if (try_module_get(ldops->owner)) { -- ldops->refcount++; -+ atomic_inc(&ldops->refcount); - ret = ldops; - } - } -@@ -171,7 +171,7 @@ static void put_ldops(struct tty_ldisc_o - 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 -urNp linux-3.0.4/drivers/tty/vt/keyboard.c linux-3.0.4/drivers/tty/vt/keyboard.c ---- linux-3.0.4/drivers/tty/vt/keyboard.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/keyboard.c 2011-08-23 21:48:14.000000000 -0400 -@@ -656,6 +656,16 @@ static void k_spec(struct vc_data *vc, u - 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); - } - -diff -urNp linux-3.0.4/drivers/tty/vt/vt.c linux-3.0.4/drivers/tty/vt/vt.c ---- linux-3.0.4/drivers/tty/vt/vt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/vt.c 2011-08-23 21:47:56.000000000 -0400 -@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(unregister_vt_notifier - - static void notify_write(struct vc_data *vc, unsigned int unicode) - { -- struct vt_notifier_param param = { .vc = vc, unicode = unicode }; -+ struct vt_notifier_param param = { .vc = vc, .c = unicode }; - atomic_notifier_call_chain(&vt_notifier_list, VT_WRITE, &param); - } - -diff -urNp linux-3.0.4/drivers/tty/vt/vt_ioctl.c linux-3.0.4/drivers/tty/vt/vt_ioctl.c ---- linux-3.0.4/drivers/tty/vt/vt_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/vt_ioctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -207,9 +207,6 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) - return -EFAULT; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - switch (cmd) { - case KDGKBENT: - key_map = key_maps[s]; -@@ -221,6 +218,9 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - val = (i ? K_HOLE : K_NOSUCHMAP); - 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) { -@@ -322,9 +322,6 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - int i, j, k; - int ret; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); - if (!kbs) { - ret = -ENOMEM; -@@ -358,6 +355,9 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - kfree(kbs); - return ((p && *p) ? -EOVERFLOW : 0); - case KDSKBSENT: -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ perm = 0; -+ - if (!perm) { - ret = -EPERM; - goto reterr; -diff -urNp linux-3.0.4/drivers/uio/uio.c linux-3.0.4/drivers/uio/uio.c ---- linux-3.0.4/drivers/uio/uio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/uio/uio.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 - 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 *i - { - 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, - } - - 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 - 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 *fil - 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_ - 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) -@@ -823,7 +824,7 @@ int __uio_register_device(struct module - 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 -urNp linux-3.0.4/drivers/usb/atm/cxacru.c linux-3.0.4/drivers/usb/atm/cxacru.c ---- linux-3.0.4/drivers/usb/atm/cxacru.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/atm/cxacru.c 2011-08-23 21:47:56.000000000 -0400 -@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_c - 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 -urNp linux-3.0.4/drivers/usb/atm/usbatm.c linux-3.0.4/drivers/usb/atm/usbatm.c ---- linux-3.0.4/drivers/usb/atm/usbatm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/atm/usbatm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -332,7 +332,7 @@ static void usbatm_extract_one_cell(stru - 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; - } - -@@ -360,7 +360,7 @@ static void usbatm_extract_one_cell(stru - 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; - } - -@@ -369,14 +369,14 @@ static void usbatm_extract_one_cell(stru - 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; - } - -@@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(stru - 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; - } - -@@ -411,7 +411,7 @@ static void usbatm_extract_one_cell(stru - - vcc->push(vcc, skb); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - out: - skb_trim(sarb, 0); - } -@@ -614,7 +614,7 @@ static void usbatm_tx_process(unsigned l - 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 a - 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 -urNp linux-3.0.4/drivers/usb/core/devices.c linux-3.0.4/drivers/usb/core/devices.c ---- linux-3.0.4/drivers/usb/core/devices.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/core/devices.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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(stru - - 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 -urNp linux-3.0.4/drivers/usb/core/message.c linux-3.0.4/drivers/usb/core/message.c ---- linux-3.0.4/drivers/usb/core/message.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/core/message.c 2011-08-23 21:47:56.000000000 -0400 -@@ -869,8 +869,8 @@ char *usb_cache_string(struct usb_device - buf = kmalloc(MAX_USB_STRING_SIZE, GFP_NOIO); - if (buf) { - len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE); -- if (len > 0) { -- smallbuf = kmalloc(++len, GFP_NOIO); -+ if (len++ > 0) { -+ smallbuf = kmalloc(len, GFP_NOIO); - if (!smallbuf) - return buf; - memcpy(smallbuf, buf, len); -diff -urNp linux-3.0.4/drivers/usb/early/ehci-dbgp.c linux-3.0.4/drivers/usb/early/ehci-dbgp.c ---- linux-3.0.4/drivers/usb/early/ehci-dbgp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/early/ehci-dbgp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, - - #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( - 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 -urNp linux-3.0.4/drivers/usb/host/xhci-mem.c linux-3.0.4/drivers/usb/host/xhci-mem.c ---- linux-3.0.4/drivers/usb/host/xhci-mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/host/xhci-mem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1685,6 +1685,8 @@ static int xhci_check_trb_in_td_math(str - unsigned int num_tests; - int i, ret; - -+ pax_track_stack(); -+ - num_tests = ARRAY_SIZE(simple_test_vector); - for (i = 0; i < num_tests; i++) { - ret = xhci_test_trb_in_td(xhci, -diff -urNp linux-3.0.4/drivers/usb/wusbcore/wa-hc.h linux-3.0.4/drivers/usb/wusbcore/wa-hc.h ---- linux-3.0.4/drivers/usb/wusbcore/wa-hc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/wusbcore/wa-hc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 * - 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 -urNp linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c ---- linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -294,7 +294,7 @@ 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 -urNp linux-3.0.4/drivers/vhost/vhost.c linux-3.0.4/drivers/vhost/vhost.c ---- linux-3.0.4/drivers/vhost/vhost.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/vhost/vhost.c 2011-08-23 21:47:56.000000000 -0400 -@@ -589,7 +589,7 @@ static int init_used(struct vhost_virtqu - return get_user(vq->last_used_idx, &used->idx); - } - --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 -urNp linux-3.0.4/drivers/video/fbcmap.c linux-3.0.4/drivers/video/fbcmap.c ---- linux-3.0.4/drivers/video/fbcmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/fbcmap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user - 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 -urNp linux-3.0.4/drivers/video/fbmem.c linux-3.0.4/drivers/video/fbmem.c ---- linux-3.0.4/drivers/video/fbmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/fbmem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_in - 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_in - 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; - } -@@ -939,6 +939,8 @@ fb_set_var(struct fb_info *info, struct - int flags = info->flags; - int ret = 0; - -+ pax_track_stack(); -+ - if (var->activate & FB_ACTIVATE_INV_MODE) { - struct fb_videomode mode1, mode2; - -@@ -1064,6 +1066,8 @@ static long do_fb_ioctl(struct fb_info * - void __user *argp = (void __user *)arg; - long ret = 0; - -+ pax_track_stack(); -+ - switch (cmd) { - case FBIOGET_VSCREENINFO: - if (!lock_fb_info(info)) -@@ -1143,7 +1147,7 @@ static long do_fb_ioctl(struct fb_info * - 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 -urNp linux-3.0.4/drivers/video/i810/i810_accel.c linux-3.0.4/drivers/video/i810/i810_accel.c ---- linux-3.0.4/drivers/video/i810/i810_accel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/i810/i810_accel.c 2011-08-23 21:47:56.000000000 -0400 -@@ -73,6 +73,7 @@ static inline int wait_for_space(struct - } - } - 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 -urNp linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm ---- linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm 2011-08-29 23:49:40.000000000 -0400 -@@ -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 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4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 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 -urNp linux-3.0.4/drivers/video/udlfb.c linux-3.0.4/drivers/video/udlfb.c ---- linux-3.0.4/drivers/video/udlfb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/udlfb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -586,11 +586,11 @@ int dlfb_handle_damage(struct dlfb_data - 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); - -@@ -711,11 +711,11 @@ static void dlfb_dpy_deferred_io(struct - 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); - } -@@ -1307,7 +1307,7 @@ static ssize_t metrics_bytes_rendered_sh - 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, -@@ -1315,7 +1315,7 @@ static ssize_t metrics_bytes_identical_s - 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, -@@ -1323,7 +1323,7 @@ static ssize_t metrics_bytes_sent_show(s - 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, -@@ -1331,7 +1331,7 @@ static ssize_t metrics_cpu_kcycles_used_ - 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( -@@ -1388,10 +1388,10 @@ static ssize_t metrics_reset_store(struc - 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 -urNp linux-3.0.4/drivers/video/uvesafb.c linux-3.0.4/drivers/video/uvesafb.c ---- linux-3.0.4/drivers/video/uvesafb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/uvesafb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -@@ -121,7 +122,7 @@ static int uvesafb_helper_start(void) - NULL, - }; - -- return call_usermodehelper(v86d_path, argv, envp, 1); -+ return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC); - } - - /* -@@ -569,10 +570,32 @@ static int __devinit uvesafb_vbe_getpmi( - 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); -@@ -1821,6 +1844,11 @@ 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; - } -@@ -1847,6 +1875,12 @@ static int uvesafb_remove(struct platfor - 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 -urNp linux-3.0.4/drivers/video/vesafb.c linux-3.0.4/drivers/video/vesafb.c ---- linux-3.0.4/drivers/video/vesafb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/vesafb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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; /* - 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 pl - 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 pl - 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 pl - 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 pl - - 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 pl - 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 -urNp linux-3.0.4/drivers/video/via/via_clock.h linux-3.0.4/drivers/video/via/via_clock.h ---- linux-3.0.4/drivers/video/via/via_clock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/via/via_clock.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/drivers/virtio/virtio_balloon.c linux-3.0.4/drivers/virtio/virtio_balloon.c ---- linux-3.0.4/drivers/virtio/virtio_balloon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/virtio/virtio_balloon.c 2011-08-23 21:48:14.000000000 -0400 -@@ -174,6 +174,8 @@ static void update_balloon_stats(struct - struct sysinfo i; - int idx = 0; - -+ pax_track_stack(); -+ - all_vm_events(events); - si_meminfo(&i); - -diff -urNp linux-3.0.4/fs/9p/vfs_inode.c linux-3.0.4/fs/9p/vfs_inode.c ---- linux-3.0.4/fs/9p/vfs_inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/9p/vfs_inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1210,7 +1210,7 @@ static void *v9fs_vfs_follow_link(struct - 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_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name, - IS_ERR(s) ? "<error>" : s); -diff -urNp linux-3.0.4/fs/aio.c linux-3.0.4/fs/aio.c ---- linux-3.0.4/fs/aio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/aio.c 2011-08-23 21:48:14.000000000 -0400 -@@ -119,7 +119,7 @@ static int aio_setup_ring(struct kioctx - 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); -@@ -1088,6 +1088,8 @@ static int read_events(struct kioctx *ct - struct aio_timeout to; - int retry = 0; - -+ pax_track_stack(); -+ - /* needed to zero any padding within an entry (there shouldn't be - * any, but C is fun! - */ -@@ -1381,22 +1383,27 @@ static ssize_t aio_fsync(struct kiocb *i - 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); - 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); - 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 -urNp linux-3.0.4/fs/attr.c linux-3.0.4/fs/attr.c ---- linux-3.0.4/fs/attr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/attr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -98,6 +98,7 @@ int inode_newsize_ok(const struct inode - 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 -urNp linux-3.0.4/fs/befs/linuxvfs.c linux-3.0.4/fs/befs/linuxvfs.c ---- linux-3.0.4/fs/befs/linuxvfs.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/fs/befs/linuxvfs.c 2011-08-29 23:26:27.000000000 -0400 -@@ -503,7 +503,7 @@ static void befs_put_link(struct dentry - { - 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 -urNp linux-3.0.4/fs/binfmt_aout.c linux-3.0.4/fs/binfmt_aout.c ---- linux-3.0.4/fs/binfmt_aout.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/binfmt_aout.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -86,6 +87,8 @@ static int aout_core_dump(struct coredum - #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; -@@ -97,10 +100,12 @@ static int aout_core_dump(struct coredum - - /* 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; - -@@ -234,6 +239,8 @@ static int load_aout_binary(struct linux - 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; - -@@ -262,6 +269,27 @@ static int load_aout_binary(struct linux - install_exec_creds(bprm); - current->flags &= ~PF_FORKNOEXEC; - -+#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; -@@ -334,7 +362,7 @@ static int load_aout_binary(struct linux - - down_write(&current->mm->mmap_sem); - error = do_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); - up_write(&current->mm->mmap_sem); -diff -urNp linux-3.0.4/fs/binfmt_elf.c linux-3.0.4/fs/binfmt_elf.c ---- linux-3.0.4/fs/binfmt_elf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/binfmt_elf.c 2011-08-23 21:48:14.000000000 -0400 -@@ -51,6 +51,10 @@ static int elf_core_dump(struct coredump - #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 -@@ -70,6 +74,11 @@ 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, - }; - -@@ -77,6 +86,8 @@ 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) { -@@ -87,7 +98,7 @@ static int set_brk(unsigned long start, - if (BAD_ADDR(addr)) - return addr; - } -- current->mm->start_brk = current->mm->brk = end; -+ current->mm->start_brk = current->mm->brk = e; - return 0; - } - -@@ -148,12 +159,15 @@ create_elf_tables(struct linux_binprm *b - 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]; -+ -+ pax_track_stack(); - - /* - * In some cases (e.g. Hyper-Threading), we want to avoid L1 -@@ -195,8 +209,12 @@ create_elf_tables(struct linux_binprm *b - * 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; - -@@ -308,9 +326,11 @@ create_elf_tables(struct linux_binprm *b - 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; - } -@@ -381,10 +401,10 @@ static unsigned long load_elf_interp(str - { - 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; - -@@ -430,6 +450,11 @@ static unsigned long load_elf_interp(str - 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) { -@@ -473,8 +498,8 @@ static unsigned long load_elf_interp(str - 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; - } -@@ -528,6 +553,193 @@ out: - return error; - } - -+#if (defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)) && defined(CONFIG_PAX_SOFTMODE) -+static unsigned long pax_parse_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 -+ -+#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 -+ -+ return pax_flags; -+} -+#endif -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+static unsigned long pax_parse_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 -+ -+#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 -+ -+ return pax_flags; -+} -+#endif -+ -+#ifdef CONFIG_PAX_EI_PAX -+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#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 -+ -+ return pax_flags; -+} -+#endif -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) -+static long pax_parse_elf_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ unsigned long i; -+ int found_flags = 0; -+#endif -+ -+#ifdef CONFIG_PAX_EI_PAX -+ pax_flags = pax_parse_ei_pax(elf_ex); -+#endif -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ 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 -EINVAL; -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ if (pax_softmode) -+ pax_flags = pax_parse_softmode(&elf_phdata[i]); -+ else -+#endif -+ -+ pax_flags = pax_parse_hardmode(&elf_phdata[i]); -+ found_flags = 1; -+ break; -+ } -+#endif -+ -+#if !defined(CONFIG_PAX_EI_PAX) && defined(CONFIG_PAX_PT_PAX_FLAGS) -+ if (found_flags == 0) { -+ struct elf_phdr phdr; -+ memset(&phdr, 0, sizeof(phdr)); -+ phdr.p_flags = PF_NOEMUTRAMP; -+#ifdef CONFIG_PAX_SOFTMODE -+ if (pax_softmode) -+ pax_flags = pax_parse_softmode(&phdr); -+ else -+#endif -+ pax_flags = pax_parse_hardmode(&phdr); -+ } -+#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. -@@ -544,6 +756,11 @@ static unsigned long randomize_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; -@@ -562,7 +779,7 @@ static int load_elf_binary(struct linux_ - 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; -@@ -572,11 +789,11 @@ static int load_elf_binary(struct linux_ - 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) { -@@ -714,11 +931,81 @@ static int load_elf_binary(struct linux_ - - /* OK, This is the point of no return */ - current->flags &= ~PF_FORKNOEXEC; -- 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) -+ if (0 > pax_parse_elf_flags(&loc->elf_ex, elf_phdata)) { -+ 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; - -@@ -800,6 +1087,20 @@ static int load_elf_binary(struct linux_ - #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, -@@ -832,9 +1133,9 @@ static int load_elf_binary(struct linux_ - * 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; -@@ -862,6 +1163,11 @@ static int load_elf_binary(struct linux_ - start_data += load_bias; - end_data += load_bias; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) -+ elf_brk += PAGE_SIZE + ((pax_get_random_long() & ~PAGE_MASK) << 4); -+#endif -+ - /* Calling set_brk effectively mmaps the pages that we need - * for the bss and break sections. We must do this before - * mapping in the interpreter, to make sure it doesn't wind -@@ -873,9 +1179,11 @@ static int load_elf_binary(struct linux_ - 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 -+ */ - } - - if (elf_interpreter) { -@@ -1090,7 +1398,7 @@ out: - * 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)) - -@@ -1124,7 +1432,7 @@ static unsigned long vma_dump_size(struc - if (vma->vm_file == NULL) - return 0; - -- if (FILTER(MAPPED_PRIVATE)) -+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE)) - goto whole; - - /* -@@ -1346,9 +1654,9 @@ static void fill_auxv_note(struct memelf - { - 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); - } - -@@ -1854,14 +2162,14 @@ static void fill_extnum_info(struct elfh - } - - 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; - } - -@@ -1955,7 +2263,7 @@ static int elf_core_dump(struct coredump - - 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; - -@@ -1969,10 +2277,12 @@ static int elf_core_dump(struct coredump - 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; -@@ -1986,7 +2296,7 @@ static int elf_core_dump(struct coredump - 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; -@@ -1997,6 +2307,7 @@ static int elf_core_dump(struct coredump - 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; -@@ -2021,7 +2332,7 @@ static int elf_core_dump(struct coredump - 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; -@@ -2030,6 +2341,7 @@ static int elf_core_dump(struct coredump - 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); -@@ -2047,6 +2359,7 @@ static int elf_core_dump(struct coredump - - 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))) -@@ -2067,6 +2380,97 @@ 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) - { - return register_binfmt(&elf_format); -diff -urNp linux-3.0.4/fs/binfmt_flat.c linux-3.0.4/fs/binfmt_flat.c ---- linux-3.0.4/fs/binfmt_flat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/binfmt_flat.c 2011-08-23 21:47:56.000000000 -0400 -@@ -567,7 +567,9 @@ static int load_flat_file(struct linux_b - 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; - } -@@ -591,8 +593,10 @@ static int load_flat_file(struct linux_b - } - 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; - } -@@ -661,8 +665,10 @@ static int load_flat_file(struct linux_b - } - 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 -urNp linux-3.0.4/fs/bio.c linux-3.0.4/fs/bio.c ---- linux-3.0.4/fs/bio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/bio.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1233,7 +1233,7 @@ static void bio_copy_kern_endio(struct b - 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 = (__force char *)bmd->sgvecs[0].iov_base; - - __bio_for_each_segment(bvec, bio, i, 0) { - char *addr = page_address(bvec->bv_page); -diff -urNp linux-3.0.4/fs/block_dev.c linux-3.0.4/fs/block_dev.c ---- linux-3.0.4/fs/block_dev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/block_dev.c 2011-08-23 21:47:56.000000000 -0400 -@@ -671,7 +671,7 @@ static bool bd_may_claim(struct block_de - 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 -urNp linux-3.0.4/fs/btrfs/ctree.c linux-3.0.4/fs/btrfs/ctree.c ---- linux-3.0.4/fs/btrfs/ctree.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/btrfs/ctree.c 2011-08-23 21:47:56.000000000 -0400 -@@ -454,9 +454,12 @@ static noinline int __btrfs_cow_block(st - 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 -urNp linux-3.0.4/fs/btrfs/inode.c linux-3.0.4/fs/btrfs/inode.c ---- linux-3.0.4/fs/btrfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/btrfs/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6895,7 +6895,7 @@ 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; -@@ -6907,6 +6907,14 @@ static int btrfs_getattr(struct vfsmount - return 0; - } - -+EXPORT_SYMBOL(btrfs_getattr); -+ -+dev_t get_btrfs_dev_from_inode(struct inode *inode) -+{ -+ return BTRFS_I(inode)->root->anon_super.s_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 -urNp linux-3.0.4/fs/btrfs/ioctl.c linux-3.0.4/fs/btrfs/ioctl.c ---- linux-3.0.4/fs/btrfs/ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/btrfs/ioctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2676,9 +2676,12 @@ long btrfs_ioctl_space_info(struct btrfs - 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, -@@ -2700,10 +2703,7 @@ long btrfs_ioctl_space_info(struct btrfs - memcpy(dest, &space, sizeof(space)); - dest++; - space_args.total_spaces++; -- slot_count--; - } -- if (!slot_count) -- break; - } - up_read(&info->groups_sem); - } -diff -urNp linux-3.0.4/fs/btrfs/relocation.c linux-3.0.4/fs/btrfs/relocation.c ---- linux-3.0.4/fs/btrfs/relocation.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/btrfs/relocation.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1242,7 +1242,7 @@ static int __update_reloc_root(struct bt - } - 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 -urNp linux-3.0.4/fs/cachefiles/bind.c linux-3.0.4/fs/cachefiles/bind.c ---- linux-3.0.4/fs/cachefiles/bind.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/bind.c 2011-08-23 21:47:56.000000000 -0400 -@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachef - 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 -urNp linux-3.0.4/fs/cachefiles/daemon.c linux-3.0.4/fs/cachefiles/daemon.c ---- linux-3.0.4/fs/cachefiles/daemon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/daemon.c 2011-08-23 21:47:56.000000000 -0400 -@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(st - 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(s - 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(struc - 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(struc - 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 -urNp linux-3.0.4/fs/cachefiles/internal.h linux-3.0.4/fs/cachefiles/internal.h ---- linux-3.0.4/fs/cachefiles/internal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/internal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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(struc - * 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 -urNp linux-3.0.4/fs/cachefiles/namei.c linux-3.0.4/fs/cachefiles/namei.c ---- linux-3.0.4/fs/cachefiles/namei.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/namei.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/cachefiles/proc.c linux-3.0.4/fs/cachefiles/proc.c ---- linux-3.0.4/fs/cachefiles/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/proc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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(str - 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 -urNp linux-3.0.4/fs/cachefiles/rdwr.c linux-3.0.4/fs/cachefiles/rdwr.c ---- linux-3.0.4/fs/cachefiles/rdwr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cachefiles/rdwr.c 2011-08-23 21:47:56.000000000 -0400 -@@ -945,7 +945,7 @@ int cachefiles_write_page(struct fscache - old_fs = get_fs(); - set_fs(KERNEL_DS); - ret = file->f_op->write( -- file, (const void __user *) data, len, &pos); -+ file, (__force const void __user *) data, len, &pos); - set_fs(old_fs); - kunmap(page); - if (ret != len) -diff -urNp linux-3.0.4/fs/ceph/dir.c linux-3.0.4/fs/ceph/dir.c ---- linux-3.0.4/fs/ceph/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ceph/dir.c 2011-08-23 21:47:56.000000000 -0400 -@@ -226,7 +226,7 @@ static int ceph_readdir(struct file *fil - 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; -diff -urNp linux-3.0.4/fs/cifs/cifs_debug.c linux-3.0.4/fs/cifs/cifs_debug.c ---- linux-3.0.4/fs/cifs/cifs_debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cifs/cifs_debug.c 2011-08-25 17:18:05.000000000 -0400 -@@ -265,8 +265,8 @@ static ssize_t cifs_stats_proc_write(str - - 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(str - 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 s - 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 s - 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 -urNp linux-3.0.4/fs/cifs/cifsfs.c linux-3.0.4/fs/cifs/cifsfs.c ---- linux-3.0.4/fs/cifs/cifsfs.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/cifs/cifsfs.c 2011-08-25 17:18:05.000000000 -0400 -@@ -994,7 +994,7 @@ 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; - -@@ -1021,7 +1021,7 @@ 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); -@@ -1106,8 +1106,8 @@ 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 -urNp linux-3.0.4/fs/cifs/cifsglob.h linux-3.0.4/fs/cifs/cifsglob.h ---- linux-3.0.4/fs/cifs/cifsglob.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cifs/cifsglob.h 2011-08-25 17:18:05.000000000 -0400 -@@ -381,28 +381,28 @@ 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; -@@ -613,7 +613,7 @@ 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) -@@ -911,8 +911,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnect - /* 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 -urNp linux-3.0.4/fs/cifs/link.c linux-3.0.4/fs/cifs/link.c ---- linux-3.0.4/fs/cifs/link.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cifs/link.c 2011-08-23 21:47:56.000000000 -0400 -@@ -587,7 +587,7 @@ 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 -urNp linux-3.0.4/fs/cifs/misc.c linux-3.0.4/fs/cifs/misc.c ---- linux-3.0.4/fs/cifs/misc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/cifs/misc.c 2011-08-25 17:18:05.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/coda/cache.c linux-3.0.4/fs/coda/cache.c ---- linux-3.0.4/fs/coda/cache.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/coda/cache.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 *inod - 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 - { - 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 - 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 -urNp linux-3.0.4/fs/compat_binfmt_elf.c linux-3.0.4/fs/compat_binfmt_elf.c ---- linux-3.0.4/fs/compat_binfmt_elf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/compat_binfmt_elf.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/compat.c linux-3.0.4/fs/compat.c ---- linux-3.0.4/fs/compat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/compat.c 2011-08-23 22:49:33.000000000 -0400 -@@ -566,7 +566,7 @@ ssize_t compat_rw_copy_check_uvector(int - 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; -@@ -848,6 +848,7 @@ struct compat_old_linux_dirent { - - struct compat_readdir_callback { - struct compat_old_linux_dirent __user *dirent; -+ struct file * file; - int result; - }; - -@@ -865,6 +866,10 @@ static int compat_fillonedir(void *__buf - 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, -@@ -897,6 +902,7 @@ asmlinkage long compat_sys_old_readdir(u - - buf.result = 0; - buf.dirent = dirent; -+ buf.file = file; - - error = vfs_readdir(file, compat_fillonedir, &buf); - if (buf.result) -@@ -917,6 +923,7 @@ 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; - }; -@@ -938,6 +945,10 @@ static int compat_filldir(void *__buf, c - 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)) -@@ -985,6 +996,7 @@ asmlinkage long compat_sys_getdents(unsi - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, compat_filldir, &buf); - if (error >= 0) -@@ -1006,6 +1018,7 @@ out: - struct compat_getdents_callback64 { - struct linux_dirent64 __user *current_dir; - struct linux_dirent64 __user *previous; -+ struct file * file; - int count; - int error; - }; -@@ -1022,6 +1035,10 @@ static int compat_filldir64(void * __buf - 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) { -@@ -1073,6 +1090,7 @@ asmlinkage long compat_sys_getdents64(un - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, compat_filldir64, &buf); - if (error >= 0) -@@ -1446,6 +1464,8 @@ int compat_core_sys_select(int n, compat - struct fdtable *fdt; - long stack_fds[SELECT_STACK_ALLOC/sizeof(long)]; - -+ pax_track_stack(); -+ - if (n < 0) - goto out_nofds; - -diff -urNp linux-3.0.4/fs/compat_ioctl.c linux-3.0.4/fs/compat_ioctl.c ---- linux-3.0.4/fs/compat_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/compat_ioctl.c 2011-08-23 21:47:56.000000000 -0400 -@@ -208,6 +208,8 @@ static int do_video_set_spu_palette(unsi - - 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); -@@ -1638,8 +1640,8 @@ asmlinkage long compat_sys_ioctl(unsigne - 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 -urNp linux-3.0.4/fs/configfs/dir.c linux-3.0.4/fs/configfs/dir.c ---- linux-3.0.4/fs/configfs/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/configfs/dir.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1575,7 +1575,8 @@ static int configfs_readdir(struct file - } - 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; - -@@ -1585,7 +1586,12 @@ static int configfs_readdir(struct file - 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 -urNp linux-3.0.4/fs/dcache.c linux-3.0.4/fs/dcache.c ---- linux-3.0.4/fs/dcache.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/dcache.c 2011-08-23 21:47:56.000000000 -0400 -@@ -3089,7 +3089,7 @@ void __init vfs_caches_init(unsigned lon - 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 -urNp linux-3.0.4/fs/ecryptfs/inode.c linux-3.0.4/fs/ecryptfs/inode.c ---- linux-3.0.4/fs/ecryptfs/inode.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/ecryptfs/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -704,7 +704,7 @@ static int ecryptfs_readlink_lower(struc - old_fs = get_fs(); - set_fs(get_ds()); - rc = lower_dentry->d_inode->i_op->readlink(lower_dentry, -- (char __user *)lower_buf, -+ (__force char __user *)lower_buf, - lower_bufsiz); - set_fs(old_fs); - if (rc < 0) -@@ -750,7 +750,7 @@ static void *ecryptfs_follow_link(struct - } - 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, (__force char __user *)buf, len); - set_fs(old_fs); - if (rc < 0) { - kfree(buf); -@@ -765,7 +765,7 @@ 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 -urNp linux-3.0.4/fs/ecryptfs/miscdev.c linux-3.0.4/fs/ecryptfs/miscdev.c ---- linux-3.0.4/fs/ecryptfs/miscdev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ecryptfs/miscdev.c 2011-08-23 21:47:56.000000000 -0400 -@@ -328,7 +328,7 @@ check_list: - goto out_unlock_msg_ctx; - i = 5; - 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 -urNp linux-3.0.4/fs/exec.c linux-3.0.4/fs/exec.c ---- linux-3.0.4/fs/exec.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/exec.c 2011-08-25 17:26:58.000000000 -0400 -@@ -55,12 +55,24 @@ - #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 <asm/uaccess.h> - #include <asm/mmu_context.h> - #include <asm/tlb.h> - #include "internal.h" - -+#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; -@@ -70,7 +82,7 @@ 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 */ - -@@ -116,7 +128,7 @@ SYSCALL_DEFINE1(uselib, const char __use - char *tmp = getname(library); - int error = PTR_ERR(tmp); - static const struct open_flags uselib_flags = { -- .open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC, -+ .open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC | FMODE_GREXEC, - .acc_mode = MAY_READ | MAY_EXEC | MAY_OPEN, - .intent = LOOKUP_OPEN - }; -@@ -195,18 +207,10 @@ static struct page *get_arg_page(struct - 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) { -@@ -281,6 +285,11 @@ static int __bprm_mm_init(struct linux_b - 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); - -@@ -295,6 +304,12 @@ static int __bprm_mm_init(struct linux_b - 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 ^= (pax_get_random_long() & ~15) & ~PAGE_MASK; -+#endif -+ - return 0; - err: - up_write(&mm->mmap_sem); -@@ -403,19 +418,7 @@ 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; - -@@ -566,7 +569,7 @@ int copy_strings_kernel(int argc, const - int r; - mm_segment_t oldfs = get_fs(); - struct user_arg_ptr argv = { -- .ptr.native = (const char __user *const __user *)__argv, -+ .ptr.native = (__force const char __user *const __user *)__argv, - }; - - set_fs(KERNEL_DS); -@@ -601,7 +604,8 @@ static int shift_arg_pages(struct vm_are - 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 -@@ -610,6 +614,10 @@ static int shift_arg_pages(struct vm_are - 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) - */ -@@ -690,10 +698,6 @@ int setup_arg_pages(struct linux_binprm - 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; -@@ -705,8 +709,28 @@ int setup_arg_pages(struct linux_binprm - 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 -@@ -725,13 +749,6 @@ int setup_arg_pages(struct linux_binprm - 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; - -@@ -771,7 +788,7 @@ struct file *open_exec(const char *name) - struct file *file; - int err; - static const struct open_flags open_exec_flags = { -- .open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC, -+ .open_flag = O_LARGEFILE | O_RDONLY | __FMODE_EXEC | FMODE_GREXEC, - .acc_mode = MAY_EXEC | MAY_OPEN, - .intent = LOOKUP_OPEN - }; -@@ -812,7 +829,7 @@ int kernel_read(struct file *file, loff_ - 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, (__force void __user *)addr, count, &pos); - set_fs(old_fs); - return result; - } -@@ -1236,7 +1253,7 @@ int check_unsafe_exec(struct linux_binpr - } - 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; -@@ -1428,11 +1445,35 @@ static int do_execve_common(const char * - 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; - bool clear_in_exec; - 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 -+ * don't check setuid() return code. Here we additionally recheck -+ * whether NPROC limit is still exceeded. -+ */ -+ if ((current->flags & PF_NPROC_EXCEEDED) && -+ atomic_read(&cred->user->processes) > rlimit(RLIMIT_NPROC)) { -+ retval = -EAGAIN; -+ goto out_ret; -+ } -+ -+ /* We're below the limit (still or again), so we don't want to make -+ * further execve() calls fail. */ -+ current->flags &= ~PF_NPROC_EXCEEDED; - - retval = unshare_files(&displaced); - if (retval) -@@ -1464,6 +1505,16 @@ static int do_execve_common(const char * - 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; -@@ -1493,9 +1544,40 @@ static int do_execve_common(const char * - if (retval < 0) - goto out; - -+ if (!gr_tpe_allow(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ if (gr_check_crash_exec(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); -+ -+ gr_handle_exec_args(bprm, argv); -+ -+#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 -+ -+ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt, -+ bprm->unsafe & LSM_UNSAFE_SHARE); -+ if (retval < 0) -+ goto out_fail; -+ - 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 */ - current->fs->in_exec = 0; -@@ -1506,6 +1588,14 @@ static int do_execve_common(const char * - 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); -@@ -1579,7 +1669,7 @@ static int expand_corename(struct core_n - { - 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) { -@@ -1667,7 +1757,7 @@ static int format_corename(struct core_n - 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; - -@@ -1758,6 +1848,219 @@ 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(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 -+} -+ -+ -+NORET_TYPE 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 -+ - static int zap_process(struct task_struct *start, int exit_code) - { - struct task_struct *t; -@@ -1969,17 +2272,17 @@ static void wait_for_dump_helpers(struct - 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); - - } -@@ -2040,7 +2343,7 @@ void do_coredump(long signr, int exit_co - 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, -@@ -2055,6 +2358,9 @@ void do_coredump(long signr, int exit_co - - 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; -@@ -2095,6 +2401,8 @@ void do_coredump(long signr, int exit_co - goto fail_corename; - } - -+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1); -+ - if (ispipe) { - int dump_count; - char **helper_argv; -@@ -2122,7 +2430,7 @@ void do_coredump(long signr, int exit_co - } - 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); -@@ -2192,7 +2500,7 @@ 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: -diff -urNp linux-3.0.4/fs/ext2/balloc.c linux-3.0.4/fs/ext2/balloc.c ---- linux-3.0.4/fs/ext2/balloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ext2/balloc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct e - - 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 -urNp linux-3.0.4/fs/ext3/balloc.c linux-3.0.4/fs/ext3/balloc.c ---- linux-3.0.4/fs/ext3/balloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ext3/balloc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1441,7 +1441,7 @@ static int ext3_has_free_blocks(struct e - - 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 -urNp linux-3.0.4/fs/ext4/balloc.c linux-3.0.4/fs/ext4/balloc.c ---- linux-3.0.4/fs/ext4/balloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ext4/balloc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -394,8 +394,8 @@ static int ext4_has_free_blocks(struct e - /* Hm, nope. Are (enough) root reserved blocks 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_blocks >= (nblocks + dirty_blocks)) - return 1; -diff -urNp linux-3.0.4/fs/ext4/ext4.h linux-3.0.4/fs/ext4/ext4.h ---- linux-3.0.4/fs/ext4/ext4.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/ext4/ext4.h 2011-08-23 21:47:56.000000000 -0400 -@@ -1177,19 +1177,19 @@ 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 -urNp linux-3.0.4/fs/ext4/mballoc.c linux-3.0.4/fs/ext4/mballoc.c ---- linux-3.0.4/fs/ext4/mballoc.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/ext4/mballoc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1793,7 +1793,7 @@ void ext4_mb_simple_scan_group(struct ex - 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; - } -@@ -2087,7 +2087,7 @@ 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; - } - } -@@ -2130,6 +2130,8 @@ static int ext4_mb_seq_groups_show(struc - ext4_grpblk_t counters[16]; - } sg; - -+ pax_track_stack(); -+ - group--; - if (group == 0) - seq_printf(seq, "#%-5s: %-5s %-5s %-5s " -@@ -2553,25 +2555,25 @@ int ext4_mb_release(struct super_block * - if (sbi->s_mb_stats) { - printk(KERN_INFO - "EXT4-fs: mballoc: %u blocks %u reqs (%u success)\n", -- 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)); - printk(KERN_INFO - "EXT4-fs: mballoc: %u extents scanned, %u goal hits, " - "%u 2^N hits, %u breaks, %u lost\n", -- 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)); - printk(KERN_INFO - "EXT4-fs: mballoc: %lu generated and it took %Lu\n", - sbi->s_mb_buddies_generated++, - sbi->s_mb_generation_time); - printk(KERN_INFO - "EXT4-fs: mballoc: %u preallocated, %u discarded\n", -- 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); -@@ -3041,16 +3043,16 @@ static void ext4_mb_collect_stats(struct - 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) -@@ -3448,7 +3450,7 @@ ext4_mb_new_inode_pa(struct ext4_allocat - trace_ext4_mb_new_inode_pa(ac, pa); - - ext4_mb_use_inode_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); - - ei = EXT4_I(ac->ac_inode); - grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); -@@ -3508,7 +3510,7 @@ ext4_mb_new_group_pa(struct ext4_allocat - 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; -@@ -3595,7 +3597,7 @@ ext4_mb_release_inode_pa(struct ext4_bud - * from the bitmap and continue. - */ - } -- atomic_add(free, &sbi->s_mb_discarded); -+ atomic_add_unchecked(free, &sbi->s_mb_discarded); - - return err; - } -@@ -3613,7 +3615,7 @@ ext4_mb_release_group_pa(struct ext4_bud - 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 -urNp linux-3.0.4/fs/fcntl.c linux-3.0.4/fs/fcntl.c ---- linux-3.0.4/fs/fcntl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fcntl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -224,6 +224,11 @@ int __f_setown(struct file *filp, struct - 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; - } -@@ -348,6 +353,7 @@ static long do_fcntl(int fd, unsigned in - 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); -@@ -835,14 +841,14 @@ static int __init fcntl_init(void) - * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY - * is defined as O_NONBLOCK on some platforms and not on others. - */ -- BUILD_BUG_ON(19 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( -+ BUILD_BUG_ON(20 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( - O_RDONLY | O_WRONLY | O_RDWR | - O_CREAT | O_EXCL | O_NOCTTY | - O_TRUNC | O_APPEND | /* O_NONBLOCK | */ - __O_SYNC | O_DSYNC | FASYNC | - O_DIRECT | O_LARGEFILE | O_DIRECTORY | - O_NOFOLLOW | O_NOATIME | O_CLOEXEC | -- __FMODE_EXEC | O_PATH -+ __FMODE_EXEC | O_PATH | FMODE_GREXEC - )); - - fasync_cache = kmem_cache_create("fasync_cache", -diff -urNp linux-3.0.4/fs/fifo.c linux-3.0.4/fs/fifo.c ---- linux-3.0.4/fs/fifo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fifo.c 2011-08-23 21:47:56.000000000 -0400 -@@ -58,10 +58,10 @@ static int fifo_open(struct inode *inode - */ - 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 - * 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 - */ - 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 - 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 -urNp linux-3.0.4/fs/file.c linux-3.0.4/fs/file.c ---- linux-3.0.4/fs/file.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/file.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -254,6 +255,7 @@ int expand_files(struct files_struct *fi - * 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 -urNp linux-3.0.4/fs/filesystems.c linux-3.0.4/fs/filesystems.c ---- linux-3.0.4/fs/filesystems.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/filesystems.c 2011-08-23 21:48:14.000000000 -0400 -@@ -274,7 +274,12 @@ struct file_system_type *get_fs_type(con - 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 -urNp linux-3.0.4/fs/fscache/cookie.c linux-3.0.4/fs/fscache/cookie.c ---- linux-3.0.4/fs/fscache/cookie.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/cookie.c 2011-08-23 21:47:56.000000000 -0400 -@@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire - 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 - /* 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 - - 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 - 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_coo - 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 f - 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 fsca - 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 - 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 - - /* 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 -urNp linux-3.0.4/fs/fscache/internal.h linux-3.0.4/fs/fscache/internal.h ---- linux-3.0.4/fs/fscache/internal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/internal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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_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_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_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_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_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_t fscache_n_marks; --extern atomic_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_t fscache_n_updates; --extern atomic_t fscache_n_updates_null; --extern atomic_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_t fscache_n_cookie_index; --extern atomic_t fscache_n_cookie_data; --extern atomic_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_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_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_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_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_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_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_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_unchecked_t fscache_n_marks; -+extern atomic_unchecked_t fscache_n_uncaches; -+ -+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_unchecked_t fscache_n_updates; -+extern atomic_unchecked_t fscache_n_updates_null; -+extern atomic_unchecked_t fscache_n_updates_run; -+ -+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_unchecked_t fscache_n_cookie_index; -+extern atomic_unchecked_t fscache_n_cookie_data; -+extern atomic_unchecked_t fscache_n_cookie_special; -+ -+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_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 - 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 fsca - - #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 -urNp linux-3.0.4/fs/fscache/object.c linux-3.0.4/fs/fscache/object.c ---- linux-3.0.4/fs/fscache/object.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/object.c 2011-08-23 21:47:56.000000000 -0400 -@@ -128,7 +128,7 @@ static void fscache_object_state_machine - /* 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 - 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 - 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 - 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 - 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(stru - - 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 fsca - * 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 fsca - 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(str - 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( - 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( - 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 -urNp linux-3.0.4/fs/fscache/operation.c linux-3.0.4/fs/fscache/operation.c ---- linux-3.0.4/fs/fscache/operation.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/operation.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 fs - 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 fscach - 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 f - 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 f - 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_obj - 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_obj - 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_ope - - 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 fscach - 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 fscach - * 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_st - - _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 -urNp linux-3.0.4/fs/fscache/page.c linux-3.0.4/fs/fscache/page.c ---- linux-3.0.4/fs/fscache/page.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/page.c 2011-08-23 21:47:56.000000000 -0400 -@@ -60,7 +60,7 @@ bool __fscache_maybe_release_page(struct - 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 - 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(struc - 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(stru - - _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 fscach - - 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 fscach - 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 fscach - 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 - /* 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_loo - 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_loo - */ - 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_ac - 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_ac - - 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 - - _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 - 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 - - 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 - - _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 - 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 - - 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_ - - _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_ - 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_ - - 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 fsca - - 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 fsca - 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 fsca - 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_ - 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_ - 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_ - - 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_ - 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 fscac - 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 fs - 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 -urNp linux-3.0.4/fs/fscache/stats.c linux-3.0.4/fs/fscache/stats.c ---- linux-3.0.4/fs/fscache/stats.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fscache/stats.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_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_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_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_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_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_t fscache_n_marks; --atomic_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_t fscache_n_updates; --atomic_t fscache_n_updates_null; --atomic_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_t fscache_n_cookie_index; --atomic_t fscache_n_cookie_data; --atomic_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_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_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_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_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_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_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_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_unchecked_t fscache_n_marks; -+atomic_unchecked_t fscache_n_uncaches; -+ -+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_unchecked_t fscache_n_updates; -+atomic_unchecked_t fscache_n_updates_null; -+atomic_unchecked_t fscache_n_updates_run; -+ -+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_unchecked_t fscache_n_cookie_index; -+atomic_unchecked_t fscache_n_cookie_data; -+atomic_unchecked_t fscache_n_cookie_special; -+ -+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_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 - 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 -urNp linux-3.0.4/fs/fs_struct.c linux-3.0.4/fs/fs_struct.c ---- linux-3.0.4/fs/fs_struct.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fs_struct.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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, s - old_root = fs->root; - fs->root = *path; - path_get_longterm(path); -+ gr_set_chroot_entries(current, path); - write_seqcount_end(&fs->seq); - spin_unlock(&fs->lock); - if (old_root.dentry) -@@ -74,6 +76,7 @@ void chroot_fs_refs(struct path *old_roo - && fs->root.mnt == old_root->mnt) { - path_get_longterm(new_root); - fs->root = *new_root; -+ gr_set_chroot_entries(p, new_root); - count++; - } - if (fs->pwd.dentry == old_root->dentry -@@ -109,7 +112,8 @@ void exit_fs(struct task_struct *tsk) - spin_lock(&fs->lock); - write_seqcount_begin(&fs->seq); - tsk->fs = NULL; -- kill = !--fs->users; -+ gr_clear_chroot_entries(tsk); -+ kill = !atomic_dec_return(&fs->users); - write_seqcount_end(&fs->seq); - spin_unlock(&fs->lock); - task_unlock(tsk); -@@ -123,7 +127,7 @@ struct fs_struct *copy_fs_struct(struct - 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); -@@ -132,6 +136,9 @@ struct fs_struct *copy_fs_struct(struct - 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); -@@ -150,8 +157,9 @@ 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); - -@@ -170,7 +178,7 @@ 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, -@@ -186,12 +194,13 @@ 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 -urNp linux-3.0.4/fs/fuse/cuse.c linux-3.0.4/fs/fuse/cuse.c ---- linux-3.0.4/fs/fuse/cuse.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fuse/cuse.c 2011-08-23 21:47:56.000000000 -0400 -@@ -586,10 +586,12 @@ 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 -urNp linux-3.0.4/fs/fuse/dev.c linux-3.0.4/fs/fuse/dev.c ---- linux-3.0.4/fs/fuse/dev.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/fs/fuse/dev.c 2011-08-29 23:26:27.000000000 -0400 -@@ -1238,7 +1238,7 @@ static ssize_t fuse_dev_splice_read(stru - ret = 0; - pipe_lock(pipe); - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -diff -urNp linux-3.0.4/fs/fuse/dir.c linux-3.0.4/fs/fuse/dir.c ---- linux-3.0.4/fs/fuse/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/fuse/dir.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1148,7 +1148,7 @@ static char *read_link(struct dentry *de - 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 -urNp linux-3.0.4/fs/gfs2/inode.c linux-3.0.4/fs/gfs2/inode.c ---- linux-3.0.4/fs/gfs2/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/gfs2/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1525,7 +1525,7 @@ 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 -urNp linux-3.0.4/fs/hfsplus/catalog.c linux-3.0.4/fs/hfsplus/catalog.c ---- linux-3.0.4/fs/hfsplus/catalog.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hfsplus/catalog.c 2011-08-23 21:48:14.000000000 -0400 -@@ -179,6 +179,8 @@ int hfsplus_find_cat(struct super_block - int err; - u16 type; - -+ pax_track_stack(); -+ - hfsplus_cat_build_key(sb, fd->search_key, cnid, NULL); - err = hfs_brec_read(fd, &tmp, sizeof(hfsplus_cat_entry)); - if (err) -@@ -210,6 +212,8 @@ int hfsplus_create_cat(u32 cnid, struct - int entry_size; - int err; - -+ pax_track_stack(); -+ - dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", - str->name, cnid, inode->i_nlink); - hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); -@@ -349,6 +353,8 @@ int hfsplus_rename_cat(u32 cnid, - int entry_size, type; - int err = 0; - -+ pax_track_stack(); -+ - dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", - cnid, src_dir->i_ino, src_name->name, - dst_dir->i_ino, dst_name->name); -diff -urNp linux-3.0.4/fs/hfsplus/dir.c linux-3.0.4/fs/hfsplus/dir.c ---- linux-3.0.4/fs/hfsplus/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hfsplus/dir.c 2011-08-23 21:48:14.000000000 -0400 -@@ -129,6 +129,8 @@ static int hfsplus_readdir(struct file * - struct hfsplus_readdir_data *rd; - u16 type; - -+ pax_track_stack(); -+ - if (filp->f_pos >= inode->i_size) - return 0; - -diff -urNp linux-3.0.4/fs/hfsplus/inode.c linux-3.0.4/fs/hfsplus/inode.c ---- linux-3.0.4/fs/hfsplus/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hfsplus/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -489,6 +489,8 @@ int hfsplus_cat_read_inode(struct inode - int res = 0; - u16 type; - -+ pax_track_stack(); -+ - type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); - - HFSPLUS_I(inode)->linkid = 0; -@@ -552,6 +554,8 @@ int hfsplus_cat_write_inode(struct inode - struct hfs_find_data fd; - hfsplus_cat_entry entry; - -+ pax_track_stack(); -+ - if (HFSPLUS_IS_RSRC(inode)) - main_inode = HFSPLUS_I(inode)->rsrc_inode; - -diff -urNp linux-3.0.4/fs/hfsplus/ioctl.c linux-3.0.4/fs/hfsplus/ioctl.c ---- linux-3.0.4/fs/hfsplus/ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hfsplus/ioctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -122,6 +122,8 @@ int hfsplus_setxattr(struct dentry *dent - struct hfsplus_cat_file *file; - int res; - -+ pax_track_stack(); -+ - if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode)) - return -EOPNOTSUPP; - -@@ -166,6 +168,8 @@ ssize_t hfsplus_getxattr(struct dentry * - struct hfsplus_cat_file *file; - ssize_t res = 0; - -+ pax_track_stack(); -+ - if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode)) - return -EOPNOTSUPP; - -diff -urNp linux-3.0.4/fs/hfsplus/super.c linux-3.0.4/fs/hfsplus/super.c ---- linux-3.0.4/fs/hfsplus/super.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hfsplus/super.c 2011-08-23 21:48:14.000000000 -0400 -@@ -340,6 +340,8 @@ static int hfsplus_fill_super(struct sup - struct nls_table *nls = NULL; - int err; - -+ pax_track_stack(); -+ - err = -EINVAL; - sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); - if (!sbi) -diff -urNp linux-3.0.4/fs/hugetlbfs/inode.c linux-3.0.4/fs/hugetlbfs/inode.c ---- linux-3.0.4/fs/hugetlbfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/hugetlbfs/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -914,7 +914,7 @@ static struct file_system_type hugetlbfs - .kill_sb = kill_litter_super, - }; - --static struct vfsmount *hugetlbfs_vfsmount; -+struct vfsmount *hugetlbfs_vfsmount; - - static int can_do_hugetlb_shm(void) - { -diff -urNp linux-3.0.4/fs/inode.c linux-3.0.4/fs/inode.c ---- linux-3.0.4/fs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -829,8 +829,8 @@ 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 -urNp linux-3.0.4/fs/jbd/checkpoint.c linux-3.0.4/fs/jbd/checkpoint.c ---- linux-3.0.4/fs/jbd/checkpoint.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jbd/checkpoint.c 2011-08-23 21:48:14.000000000 -0400 -@@ -350,6 +350,8 @@ int log_do_checkpoint(journal_t *journal - tid_t this_tid; - int result; - -+ pax_track_stack(); -+ - jbd_debug(1, "Start checkpoint\n"); - - /* -diff -urNp linux-3.0.4/fs/jffs2/compr_rtime.c linux-3.0.4/fs/jffs2/compr_rtime.c ---- linux-3.0.4/fs/jffs2/compr_rtime.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jffs2/compr_rtime.c 2011-08-23 21:48:14.000000000 -0400 -@@ -37,6 +37,8 @@ static int jffs2_rtime_compress(unsigned - int outpos = 0; - int pos=0; - -+ pax_track_stack(); -+ - memset(positions,0,sizeof(positions)); - - while (pos < (*sourcelen) && outpos <= (*dstlen)-2) { -@@ -78,6 +80,8 @@ static int jffs2_rtime_decompress(unsign - int outpos = 0; - int pos=0; - -+ pax_track_stack(); -+ - memset(positions,0,sizeof(positions)); - - while (outpos<destlen) { -diff -urNp linux-3.0.4/fs/jffs2/compr_rubin.c linux-3.0.4/fs/jffs2/compr_rubin.c ---- linux-3.0.4/fs/jffs2/compr_rubin.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jffs2/compr_rubin.c 2011-08-23 21:48:14.000000000 -0400 -@@ -314,6 +314,8 @@ static int jffs2_dynrubin_compress(unsig - int ret; - uint32_t mysrclen, mydstlen; - -+ pax_track_stack(); -+ - mysrclen = *sourcelen; - mydstlen = *dstlen - 8; - -diff -urNp linux-3.0.4/fs/jffs2/erase.c linux-3.0.4/fs/jffs2/erase.c ---- linux-3.0.4/fs/jffs2/erase.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jffs2/erase.c 2011-08-23 21:47:56.000000000 -0400 -@@ -439,7 +439,8 @@ static void jffs2_mark_erased_block(stru - 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 -urNp linux-3.0.4/fs/jffs2/wbuf.c linux-3.0.4/fs/jffs2/wbuf.c ---- linux-3.0.4/fs/jffs2/wbuf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jffs2/wbuf.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1012,7 +1012,8 @@ static const struct jffs2_unknown_node o - { - .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 -urNp linux-3.0.4/fs/jffs2/xattr.c linux-3.0.4/fs/jffs2/xattr.c ---- linux-3.0.4/fs/jffs2/xattr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jffs2/xattr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -773,6 +773,8 @@ void jffs2_build_xattr_subsystem(struct - - BUG_ON(!(c->flags & JFFS2_SB_FLAG_BUILDING)); - -+ pax_track_stack(); -+ - /* Phase.1 : Merge same xref */ - for (i=0; i < XREF_TMPHASH_SIZE; i++) - xref_tmphash[i] = NULL; -diff -urNp linux-3.0.4/fs/jfs/super.c linux-3.0.4/fs/jfs/super.c ---- linux-3.0.4/fs/jfs/super.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/jfs/super.c 2011-08-23 21:47:56.000000000 -0400 -@@ -803,7 +803,7 @@ 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 -urNp linux-3.0.4/fs/Kconfig.binfmt linux-3.0.4/fs/Kconfig.binfmt ---- linux-3.0.4/fs/Kconfig.binfmt 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/Kconfig.binfmt 2011-08-23 21:47:56.000000000 -0400 -@@ -86,7 +86,7 @@ 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 -urNp linux-3.0.4/fs/libfs.c linux-3.0.4/fs/libfs.c ---- linux-3.0.4/fs/libfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/libfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -163,6 +163,9 @@ int dcache_readdir(struct file * filp, v - - 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)) { -@@ -172,7 +175,12 @@ int dcache_readdir(struct file * filp, v - - 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 -urNp linux-3.0.4/fs/lockd/clntproc.c linux-3.0.4/fs/lockd/clntproc.c ---- linux-3.0.4/fs/lockd/clntproc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/lockd/clntproc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt - /* - * 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; -@@ -620,6 +620,8 @@ nlmclnt_reclaim(struct nlm_host *host, s - struct nlm_rqst reqst, *req; - int status; - -+ pax_track_stack(); -+ - req = &reqst; - memset(req, 0, sizeof(*req)); - locks_init_lock(&req->a_args.lock.fl); -diff -urNp linux-3.0.4/fs/locks.c linux-3.0.4/fs/locks.c ---- linux-3.0.4/fs/locks.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/locks.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2043,16 +2043,16 @@ void locks_remove_flock(struct file *fil - 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 -urNp linux-3.0.4/fs/logfs/super.c linux-3.0.4/fs/logfs/super.c ---- linux-3.0.4/fs/logfs/super.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/logfs/super.c 2011-08-23 21:48:14.000000000 -0400 -@@ -266,6 +266,8 @@ static int logfs_recover_sb(struct super - struct logfs_disk_super _ds1, *ds1 = &_ds1; - int err, valid0, valid1; - -+ pax_track_stack(); -+ - /* read first superblock */ - err = wbuf_read(sb, super->s_sb_ofs[0], sizeof(*ds0), ds0); - if (err) -diff -urNp linux-3.0.4/fs/namei.c linux-3.0.4/fs/namei.c ---- linux-3.0.4/fs/namei.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/namei.c 2011-08-23 21:48:14.000000000 -0400 -@@ -237,21 +237,31 @@ int generic_permission(struct inode *ino - return ret; - - /* -- * Read/write DACs are always overridable. -- * Executable DACs are overridable for all directories and -- * for non-directories that have least one exec bit set. -+ * Searching includes executable on directories, else just read. - */ -- if (!(mask & MAY_EXEC) || execute_ok(inode)) -- if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) -+ mask &= MAY_READ | MAY_WRITE | MAY_EXEC; -+ if (mask == MAY_READ || (S_ISDIR(inode->i_mode) && !(mask & MAY_WRITE))) { -+#ifdef CONFIG_GRKERNSEC -+ if (flags & IPERM_FLAG_RCU) -+ return -ECHILD; -+#endif -+ if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) - return 0; -+ } - - /* -- * Searching includes executable on directories, else just read. -+ * Read/write DACs are always overridable. -+ * Executable DACs are overridable for all directories and -+ * for non-directories that have least one exec bit set. - */ -- mask &= MAY_READ | MAY_WRITE | MAY_EXEC; -- if (mask == MAY_READ || (S_ISDIR(inode->i_mode) && !(mask & MAY_WRITE))) -- if (ns_capable(inode_userns(inode), CAP_DAC_READ_SEARCH)) -+ if (!(mask & MAY_EXEC) || execute_ok(inode)) { -+#ifdef CONFIG_GRKERNSEC -+ if (flags & IPERM_FLAG_RCU) -+ return -ECHILD; -+#endif -+ if (ns_capable(inode_userns(inode), CAP_DAC_OVERRIDE)) - return 0; -+ } - - return -EACCES; - } -@@ -547,6 +557,9 @@ static int complete_walk(struct nameidat - br_read_unlock(vfsmount_lock); - } - -+ if (!(nd->flags & LOOKUP_PARENT) && !gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) -+ return -ENOENT; -+ - if (likely(!(nd->flags & LOOKUP_JUMPED))) - return 0; - -@@ -593,9 +606,16 @@ static inline int exec_permission(struct - if (ret == -ECHILD) - return ret; - -- if (ns_capable(ns, CAP_DAC_OVERRIDE) || -- ns_capable(ns, CAP_DAC_READ_SEARCH)) -+ if (ns_capable_nolog(ns, CAP_DAC_OVERRIDE)) - goto ok; -+ else { -+#ifdef CONFIG_GRKERNSEC -+ if (flags & IPERM_FLAG_RCU) -+ return -ECHILD; -+#endif -+ if (ns_capable(ns, CAP_DAC_READ_SEARCH) || ns_capable(ns, CAP_DAC_OVERRIDE)) -+ goto ok; -+ } - - return ret; - ok: -@@ -703,11 +723,19 @@ follow_link(struct path *link, struct na - 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); -@@ -1625,6 +1653,9 @@ static int do_path_lookup(int dfd, const - retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd); - - if (likely(!retval)) { -+ if (*name != '/' && nd->path.dentry && nd->inode && !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); -@@ -1935,6 +1966,30 @@ int vfs_create(struct inode *dir, struct - return error; - } - -+/* -+ * Note that while the flag value (low two bits) for sys_open means: -+ * 00 - read-only -+ * 01 - write-only -+ * 10 - read-write -+ * 11 - special -+ * it is changed into -+ * 00 - no permissions needed -+ * 01 - read-permission -+ * 10 - write-permission -+ * 11 - read-write -+ * for the internal routines (ie open_namei()/follow_link() etc) -+ * This is more logical, and also allows the 00 "no perm needed" -+ * to be used for symlinks (where the permissions are checked -+ * later). -+ * -+*/ -+static inline int open_to_namei_flags(int flag) -+{ -+ if ((flag+1) & O_ACCMODE) -+ flag++; -+ return flag; -+} -+ - static int may_open(struct path *path, int acc_mode, int flag) - { - struct dentry *dentry = path->dentry; -@@ -1987,7 +2042,27 @@ static int may_open(struct path *path, i - /* - * Ensure there are no outstanding leases on the file. - */ -- return break_lease(inode, flag); -+ error = break_lease(inode, flag); -+ -+ if (error) -+ return error; -+ -+ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode)) { -+ error = -EPERM; -+ goto exit; -+ } -+ -+ if (gr_handle_rawio(inode)) { -+ error = -EPERM; -+ goto exit; -+ } -+ -+ if (!gr_acl_handle_open(dentry, path->mnt, open_to_namei_flags(flag))) { -+ error = -EACCES; -+ goto exit; -+ } -+exit: -+ return error; - } - - static int handle_truncate(struct file *filp) -@@ -2013,30 +2088,6 @@ static int handle_truncate(struct file * - } - - /* -- * Note that while the flag value (low two bits) for sys_open means: -- * 00 - read-only -- * 01 - write-only -- * 10 - read-write -- * 11 - special -- * it is changed into -- * 00 - no permissions needed -- * 01 - read-permission -- * 10 - write-permission -- * 11 - read-write -- * for the internal routines (ie open_namei()/follow_link() etc) -- * This is more logical, and also allows the 00 "no perm needed" -- * to be used for symlinks (where the permissions are checked -- * later). -- * --*/ --static inline int open_to_namei_flags(int flag) --{ -- if ((flag+1) & O_ACCMODE) -- flag++; -- return flag; --} -- --/* - * Handle the last step of open() - */ - static struct file *do_last(struct nameidata *nd, struct path *path, -@@ -2045,6 +2096,7 @@ static struct file *do_last(struct namei - struct dentry *dir = nd->path.dentry; - struct dentry *dentry; - int open_flag = op->open_flag; -+ int flag = open_to_namei_flags(open_flag); - int will_truncate = open_flag & O_TRUNC; - int want_write = 0; - int acc_mode = op->acc_mode; -@@ -2132,6 +2184,12 @@ static struct file *do_last(struct namei - /* Negative dentry, just create the file */ - if (!dentry->d_inode) { - int mode = op->mode; -+ -+ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, path->mnt, flag, mode)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ - if (!IS_POSIXACL(dir->d_inode)) - mode &= ~current_umask(); - /* -@@ -2155,6 +2213,8 @@ static struct file *do_last(struct namei - 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; -@@ -2164,6 +2224,14 @@ static struct file *do_last(struct namei - /* - * It already exists. - */ -+ -+ /* 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, flag, acc_mode)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ - mutex_unlock(&dir->d_inode->i_mutex); - audit_inode(pathname, path->dentry); - -@@ -2450,6 +2518,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const - error = may_mknod(mode); - if (error) - goto out_dput; -+ -+ if (gr_handle_chroot_mknod(dentry, nd.path.mnt, mode)) { -+ error = -EPERM; -+ goto out_dput; -+ } -+ -+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; -@@ -2470,6 +2549,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const - } - out_drop_write: - mnt_drop_write(nd.path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); - out_dput: - dput(dentry); - out_unlock: -@@ -2522,6 +2604,11 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const - if (IS_ERR(dentry)) - goto out_unlock; - -+ if (!gr_acl_handle_mkdir(dentry, nd.path.dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - if (!IS_POSIXACL(nd.path.dentry->d_inode)) - mode &= ~current_umask(); - error = mnt_want_write(nd.path.mnt); -@@ -2533,6 +2620,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const - error = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode); - out_drop_write: - mnt_drop_write(nd.path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); -+ - out_dput: - dput(dentry); - out_unlock: -@@ -2613,6 +2704,8 @@ static long do_rmdir(int dfd, const char - 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) -@@ -2641,6 +2734,17 @@ static long do_rmdir(int dfd, const char - error = -ENOENT; - goto exit3; - } -+ -+ if (dentry->d_inode->i_nlink <= 1) { -+ 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; -@@ -2648,6 +2752,8 @@ static long do_rmdir(int dfd, const char - 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: -@@ -2710,6 +2816,8 @@ static long do_unlinkat(int dfd, const c - 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) -@@ -2732,6 +2840,16 @@ static long do_unlinkat(int dfd, const c - 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; -@@ -2739,6 +2857,8 @@ static long do_unlinkat(int dfd, const c - 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: -@@ -2816,6 +2936,11 @@ SYSCALL_DEFINE3(symlinkat, const char __ - if (IS_ERR(dentry)) - goto out_unlock; - -+ if (!gr_acl_handle_symlink(dentry, nd.path.dentry, nd.path.mnt, from)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; -@@ -2823,6 +2948,8 @@ SYSCALL_DEFINE3(symlinkat, const char __ - if (error) - goto out_drop_write; - error = vfs_symlink(nd.path.dentry->d_inode, dentry, from); -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); - out_drop_write: - mnt_drop_write(nd.path.mnt); - out_dput: -@@ -2931,6 +3058,20 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con - error = PTR_ERR(new_dentry); - if (IS_ERR(new_dentry)) - goto out_unlock; -+ -+ 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_dput; -+ } -+ -+ if (!gr_acl_handle_link(new_dentry, nd.path.dentry, nd.path.mnt, -+ old_path.dentry, old_path.mnt, to)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; -@@ -2938,6 +3079,8 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con - if (error) - goto out_drop_write; - error = vfs_link(old_path.dentry, nd.path.dentry->d_inode, new_dentry); -+ if (!error) -+ gr_handle_create(new_dentry, nd.path.mnt); - out_drop_write: - mnt_drop_write(nd.path.mnt); - out_dput: -@@ -3113,6 +3256,8 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c - char *to; - int error; - -+ pax_track_stack(); -+ - error = user_path_parent(olddfd, oldname, &oldnd, &from); - if (error) - goto exit; -@@ -3169,6 +3314,12 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c - 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; -@@ -3178,6 +3329,9 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c - 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: -@@ -3203,6 +3357,8 @@ SYSCALL_DEFINE2(rename, const char __use - - 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); -@@ -3212,7 +3368,14 @@ int vfs_readlink(struct dentry *dentry, - 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 -urNp linux-3.0.4/fs/namespace.c linux-3.0.4/fs/namespace.c ---- linux-3.0.4/fs/namespace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/namespace.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1328,6 +1328,9 @@ static int do_umount(struct vfsmount *mn - 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; - } - -@@ -1347,6 +1350,9 @@ static int do_umount(struct vfsmount *mn - br_write_unlock(vfsmount_lock); - up_write(&namespace_sem); - release_mounts(&umount_list); -+ -+ gr_log_unmount(mnt->mnt_devname, retval); -+ - return retval; - } - -@@ -2338,6 +2344,16 @@ long do_mount(char *dev_name, char *dir_ - 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); -@@ -2352,6 +2368,9 @@ long do_mount(char *dev_name, char *dir_ - dev_name, data_page); - dput_out: - path_put(&path); -+ -+ gr_log_mount(dev_name, dir_name, retval); -+ - return retval; - } - -@@ -2575,6 +2594,11 @@ SYSCALL_DEFINE2(pivot_root, const char _ - 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 -urNp linux-3.0.4/fs/ncpfs/dir.c linux-3.0.4/fs/ncpfs/dir.c ---- linux-3.0.4/fs/ncpfs/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ncpfs/dir.c 2011-08-23 21:48:14.000000000 -0400 -@@ -299,6 +299,8 @@ ncp_lookup_validate(struct dentry *dentr - int res, val = 0, len; - __u8 __name[NCP_MAXPATHLEN + 1]; - -+ pax_track_stack(); -+ - if (dentry == dentry->d_sb->s_root) - return 1; - -@@ -844,6 +846,8 @@ static struct dentry *ncp_lookup(struct - int error, res, len; - __u8 __name[NCP_MAXPATHLEN + 1]; - -+ pax_track_stack(); -+ - error = -EIO; - if (!ncp_conn_valid(server)) - goto finished; -@@ -931,6 +935,8 @@ int ncp_create_new(struct inode *dir, st - PPRINTK("ncp_create_new: creating %s/%s, mode=%x\n", - dentry->d_parent->d_name.name, dentry->d_name.name, mode); - -+ pax_track_stack(); -+ - ncp_age_dentry(server, dentry); - len = sizeof(__name); - error = ncp_io2vol(server, __name, &len, dentry->d_name.name, -@@ -992,6 +998,8 @@ static int ncp_mkdir(struct inode *dir, - int error, len; - __u8 __name[NCP_MAXPATHLEN + 1]; - -+ pax_track_stack(); -+ - DPRINTK("ncp_mkdir: making %s/%s\n", - dentry->d_parent->d_name.name, dentry->d_name.name); - -@@ -1140,6 +1148,8 @@ static int ncp_rename(struct inode *old_ - int old_len, new_len; - __u8 __old_name[NCP_MAXPATHLEN + 1], __new_name[NCP_MAXPATHLEN + 1]; - -+ pax_track_stack(); -+ - DPRINTK("ncp_rename: %s/%s to %s/%s\n", - old_dentry->d_parent->d_name.name, old_dentry->d_name.name, - new_dentry->d_parent->d_name.name, new_dentry->d_name.name); -diff -urNp linux-3.0.4/fs/ncpfs/inode.c linux-3.0.4/fs/ncpfs/inode.c ---- linux-3.0.4/fs/ncpfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ncpfs/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -461,6 +461,8 @@ static int ncp_fill_super(struct super_b - #endif - struct ncp_entry_info finfo; - -+ pax_track_stack(); -+ - memset(&data, 0, sizeof(data)); - server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); - if (!server) -diff -urNp linux-3.0.4/fs/nfs/inode.c linux-3.0.4/fs/nfs/inode.c ---- linux-3.0.4/fs/nfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/nfs/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -150,7 +150,7 @@ static void nfs_zap_caches_locked(struct - 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 -@@ -1000,16 +1000,16 @@ static int nfs_size_need_update(const st - 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 -urNp linux-3.0.4/fs/nfsd/nfs4state.c linux-3.0.4/fs/nfsd/nfs4state.c ---- linux-3.0.4/fs/nfsd/nfs4state.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/nfsd/nfs4state.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3794,6 +3794,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struc - unsigned int strhashval; - int err; - -+ pax_track_stack(); -+ - dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n", - (long long) lock->lk_offset, - (long long) lock->lk_length); -diff -urNp linux-3.0.4/fs/nfsd/nfs4xdr.c linux-3.0.4/fs/nfsd/nfs4xdr.c ---- linux-3.0.4/fs/nfsd/nfs4xdr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/nfsd/nfs4xdr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1788,6 +1788,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, s - .dentry = dentry, - }; - -+ pax_track_stack(); -+ - BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1); - BUG_ON(bmval0 & ~nfsd_suppattrs0(minorversion)); - BUG_ON(bmval1 & ~nfsd_suppattrs1(minorversion)); -diff -urNp linux-3.0.4/fs/nfsd/vfs.c linux-3.0.4/fs/nfsd/vfs.c ---- linux-3.0.4/fs/nfsd/vfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/nfsd/vfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -896,7 +896,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, st - } else { - oldfs = get_fs(); - set_fs(KERNEL_DS); -- host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset); -+ host_err = vfs_readv(file, (__force struct iovec __user *)vec, vlen, &offset); - set_fs(oldfs); - } - -@@ -1000,7 +1000,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, s - - /* 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, (__force struct iovec __user *)vec, vlen, &offset); - set_fs(oldfs); - if (host_err < 0) - goto out_nfserr; -@@ -1535,7 +1535,7 @@ nfsd_readlink(struct svc_rqst *rqstp, st - */ - - oldfs = get_fs(); set_fs(KERNEL_DS); -- host_err = inode->i_op->readlink(dentry, buf, *lenp); -+ host_err = inode->i_op->readlink(dentry, (__force char __user *)buf, *lenp); - set_fs(oldfs); - - if (host_err < 0) -diff -urNp linux-3.0.4/fs/notify/fanotify/fanotify_user.c linux-3.0.4/fs/notify/fanotify/fanotify_user.c ---- linux-3.0.4/fs/notify/fanotify/fanotify_user.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/notify/fanotify/fanotify_user.c 2011-08-23 21:48:14.000000000 -0400 -@@ -276,7 +276,8 @@ static ssize_t copy_event_to_user(struct - 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 -urNp linux-3.0.4/fs/notify/notification.c linux-3.0.4/fs/notify/notification.c ---- linux-3.0.4/fs/notify/notification.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/notify/notification.c 2011-08-23 21:47:56.000000000 -0400 -@@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event - * 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 = A - */ - 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 -urNp linux-3.0.4/fs/ntfs/dir.c linux-3.0.4/fs/ntfs/dir.c ---- linux-3.0.4/fs/ntfs/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ntfs/dir.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/ntfs/file.c linux-3.0.4/fs/ntfs/file.c ---- linux-3.0.4/fs/ntfs/file.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ntfs/file.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2222,6 +2222,6 @@ const struct inode_operations ntfs_file_ - #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 -urNp linux-3.0.4/fs/ocfs2/localalloc.c linux-3.0.4/fs/ocfs2/localalloc.c ---- linux-3.0.4/fs/ocfs2/localalloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/localalloc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1283,7 +1283,7 @@ static int ocfs2_local_alloc_slide_windo - goto bail; - } - -- atomic_inc(&osb->alloc_stats.moves); -+ atomic_inc_unchecked(&osb->alloc_stats.moves); - - bail: - if (handle) -diff -urNp linux-3.0.4/fs/ocfs2/namei.c linux-3.0.4/fs/ocfs2/namei.c ---- linux-3.0.4/fs/ocfs2/namei.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/namei.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1063,6 +1063,8 @@ static int ocfs2_rename(struct inode *ol - struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; - struct ocfs2_dir_lookup_result target_insert = { NULL, }; - -+ pax_track_stack(); -+ - /* At some point it might be nice to break this function up a - * bit. */ - -diff -urNp linux-3.0.4/fs/ocfs2/ocfs2.h linux-3.0.4/fs/ocfs2/ocfs2.h ---- linux-3.0.4/fs/ocfs2/ocfs2.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/ocfs2.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/ocfs2/suballoc.c linux-3.0.4/fs/ocfs2/suballoc.c ---- linux-3.0.4/fs/ocfs2/suballoc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/suballoc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(s - 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 *handl - 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_ - 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 *hand - 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 *han - 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 *han - 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 -urNp linux-3.0.4/fs/ocfs2/super.c linux-3.0.4/fs/ocfs2/super.c ---- linux-3.0.4/fs/ocfs2/super.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/super.c 2011-08-23 21:47:56.000000000 -0400 -@@ -300,11 +300,11 @@ static int ocfs2_osb_dump(struct ocfs2_s - "%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 " -@@ -2112,11 +2112,11 @@ static int ocfs2_initialize_super(struct - 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 -urNp linux-3.0.4/fs/ocfs2/symlink.c linux-3.0.4/fs/ocfs2/symlink.c ---- linux-3.0.4/fs/ocfs2/symlink.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/ocfs2/symlink.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/open.c linux-3.0.4/fs/open.c ---- linux-3.0.4/fs/open.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/open.c 2011-09-14 09:16:46.000000000 -0400 -@@ -112,6 +112,10 @@ static long do_sys_truncate(const char _ - 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 +362,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con - 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 +391,8 @@ SYSCALL_DEFINE1(chdir, const char __user - if (error) - goto dput_and_out; - -+ gr_log_chdir(path.dentry, path.mnt); -+ - set_fs_pwd(current->fs, &path); - - dput_and_out: -@@ -410,6 +419,13 @@ 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 +454,13 @@ SYSCALL_DEFINE1(chroot, const char __use - 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); -@@ -466,12 +488,25 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd - err = mnt_want_write_file(file); - if (err) - goto out_putf; -+ - mutex_lock(&inode->i_mutex); -+ -+ if (!gr_acl_handle_fchmod(dentry, file->f_vfsmnt, mode)) { -+ err = -EACCES; -+ goto out_unlock; -+ } -+ - err = security_path_chmod(dentry, file->f_vfsmnt, mode); - if (err) - goto out_unlock; - if (mode == (mode_t) -1) - mode = inode->i_mode; -+ -+ if (gr_handle_chroot_chmod(dentry, file->f_vfsmnt, mode)) { -+ err = -EACCES; -+ goto out_unlock; -+ } -+ - newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); - newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; - err = notify_change(dentry, &newattrs); -@@ -499,12 +534,25 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons - error = mnt_want_write(path.mnt); - if (error) - goto dput_and_out; -+ - mutex_lock(&inode->i_mutex); -+ -+ if (!gr_acl_handle_chmod(path.dentry, path.mnt, mode)) { -+ error = -EACCES; -+ goto out_unlock; -+ } -+ - error = security_path_chmod(path.dentry, path.mnt, mode); - if (error) - goto out_unlock; - if (mode == (mode_t) -1) - mode = inode->i_mode; -+ -+ if (gr_handle_chroot_chmod(path.dentry, path.mnt, mode)) { -+ error = -EACCES; -+ goto out_unlock; -+ } -+ - newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); - newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; - error = notify_change(path.dentry, &newattrs); -@@ -528,6 +576,9 @@ static int chown_common(struct path *pat - 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; -@@ -998,7 +1049,10 @@ long do_sys_open(int dfd, const char __u - if (!IS_ERR(tmp)) { - fd = get_unused_fd_flags(flags); - if (fd >= 0) { -- struct file *f = do_filp_open(dfd, tmp, &op, lookup); -+ struct file *f; -+ /* don't allow to be set by userland */ -+ flags &= ~FMODE_GREXEC; -+ f = do_filp_open(dfd, tmp, &op, lookup); - if (IS_ERR(f)) { - put_unused_fd(fd); - fd = PTR_ERR(f); -diff -urNp linux-3.0.4/fs/partitions/ldm.c linux-3.0.4/fs/partitions/ldm.c ---- linux-3.0.4/fs/partitions/ldm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/partitions/ldm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1311,6 +1311,7 @@ static bool ldm_frag_add (const u8 *data - ldm_error ("A VBLK claims to have %d parts.", num); - return false; - } -+ - if (rec >= num) { - ldm_error("REC value (%d) exceeds NUM value (%d)", rec, num); - return false; -@@ -1322,7 +1323,7 @@ static bool ldm_frag_add (const u8 *data - goto found; - } - -- f = kmalloc (sizeof (*f) + size*num, GFP_KERNEL); -+ f = kmalloc (size*num + sizeof (*f), GFP_KERNEL); - if (!f) { - ldm_crit ("Out of memory."); - return false; -diff -urNp linux-3.0.4/fs/pipe.c linux-3.0.4/fs/pipe.c ---- linux-3.0.4/fs/pipe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/pipe.c 2011-08-23 21:48:14.000000000 -0400 -@@ -420,9 +420,9 @@ 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 -@@ -481,7 +481,7 @@ pipe_write(struct kiocb *iocb, const str - 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; -@@ -530,7 +530,7 @@ redo1: - for (;;) { - int bufs; - -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -@@ -616,9 +616,9 @@ 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); -@@ -685,7 +685,7 @@ pipe_poll(struct file *filp, poll_table - 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; - } - -@@ -695,7 +695,7 @@ pipe_poll(struct file *filp, poll_table - * 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; - } - -@@ -709,10 +709,10 @@ pipe_release(struct inode *inode, int de - - 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); -@@ -802,7 +802,7 @@ pipe_read_open(struct inode *inode, stru - - if (inode->i_pipe) { - ret = 0; -- inode->i_pipe->readers++; -+ atomic_inc(&inode->i_pipe->readers); - } - - mutex_unlock(&inode->i_mutex); -@@ -819,7 +819,7 @@ pipe_write_open(struct inode *inode, str - - if (inode->i_pipe) { - ret = 0; -- inode->i_pipe->writers++; -+ atomic_inc(&inode->i_pipe->writers); - } - - mutex_unlock(&inode->i_mutex); -@@ -837,9 +837,9 @@ pipe_rdwr_open(struct inode *inode, stru - 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); -@@ -931,7 +931,7 @@ 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(). -@@ -961,7 +961,8 @@ static struct inode * get_pipe_inode(voi - 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 -urNp linux-3.0.4/fs/proc/array.c linux-3.0.4/fs/proc/array.c ---- linux-3.0.4/fs/proc/array.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/array.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 - 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, - 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) - { -@@ -375,9 +406,11 @@ static int do_task_stat(struct seq_file - cputime_t cutime, cstime, utime, stime; - cputime_t cgtime, gtime; - unsigned long rsslim = 0; -- char tcomm[sizeof(task->comm)]; -+ char tcomm[sizeof(task->comm)] = { 0 }; - unsigned long flags; - -+ pax_track_stack(); -+ - state = *get_task_state(task); - vsize = eip = esp = 0; - permitted = ptrace_may_access(task, PTRACE_MODE_READ); -@@ -449,6 +482,19 @@ static int do_task_stat(struct seq_file - 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); -@@ -489,9 +535,15 @@ static int do_task_stat(struct seq_file - vsize, - mm ? get_mm_rss(mm) : 0, - rsslim, -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0), -+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0), -+ PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0), -+#else - mm ? (permitted ? mm->start_code : 1) : 0, - mm ? (permitted ? mm->end_code : 1) : 0, - (permitted && mm) ? mm->start_stack : 0, -+#endif - esp, - eip, - /* The signal information here is obsolete. -@@ -544,3 +596,18 @@ int proc_pid_statm(struct seq_file *m, s - - 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 -urNp linux-3.0.4/fs/proc/base.c linux-3.0.4/fs/proc/base.c ---- linux-3.0.4/fs/proc/base.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/fs/proc/base.c 2011-09-13 14:50:28.000000000 -0400 -@@ -107,6 +107,22 @@ 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; -+}; -+ -+static int gr_fake_filldir(void * __buf, const char *name, int namlen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct getdents_callback * buf = (struct getdents_callback *) __buf; -+ buf->error = -EINVAL; -+ return 0; -+} -+ - #define NOD(NAME, MODE, IOP, FOP, OP) { \ - .name = (NAME), \ - .len = sizeof(NAME) - 1, \ -@@ -209,6 +225,9 @@ static struct mm_struct *__check_mem_per - if (task == current) - return mm; - -+ if (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task)) -+ return ERR_PTR(-EPERM); -+ - /* - * If current is actively ptrace'ing, and would also be - * permitted to freshly attach with ptrace now, permit it. -@@ -282,6 +301,9 @@ static int proc_pid_cmdline(struct task_ - 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) -@@ -309,12 +331,28 @@ 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 */ -@@ -328,7 +366,7 @@ static int proc_pid_auxv(struct task_str - } - - --#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. -@@ -367,7 +405,7 @@ static void unlock_trace(struct task_str - mutex_unlock(&task->signal->cred_guard_mutex); - } - --#ifdef CONFIG_STACKTRACE -+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) - - #define MAX_STACK_TRACE_DEPTH 64 - -@@ -558,7 +596,7 @@ static int proc_pid_limits(struct task_s - 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; -@@ -587,7 +625,7 @@ static int proc_pid_syscall(struct task_ - /************************************************************************/ - - /* 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; -@@ -597,7 +635,10 @@ static int proc_fd_access_allowed(struct - */ - task = get_proc_task(inode); - if (task) { -- allowed = ptrace_may_access(task, PTRACE_MODE_READ); -+ if (log) -+ allowed = ptrace_may_access_log(task, PTRACE_MODE_READ); -+ else -+ allowed = ptrace_may_access(task, PTRACE_MODE_READ); - put_task_struct(task); - } - return allowed; -@@ -978,6 +1019,9 @@ static ssize_t environ_read(struct file - 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) -@@ -1614,7 +1658,7 @@ static void *proc_pid_follow_link(struct - 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(inode, &nd->path); -@@ -1653,8 +1697,18 @@ static int proc_pid_readlink(struct dent - 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(inode, &path); - if (error) -@@ -1719,7 +1773,11 @@ struct inode *proc_pid_make_inode(struct - 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); -@@ -1737,6 +1795,9 @@ int pid_getattr(struct vfsmount *mnt, st - struct inode *inode = dentry->d_inode; - struct task_struct *task; - const struct cred *cred; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ const struct cred *tmpcred = current_cred(); -+#endif - - generic_fillattr(inode, stat); - -@@ -1744,13 +1805,41 @@ int pid_getattr(struct vfsmount *mnt, st - stat->uid = 0; - stat->gid = 0; - task = pid_task(proc_pid(inode), PIDTYPE_PID); -+ -+ if (task && (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))) { -+ rcu_read_unlock(); -+ return -ENOENT; -+ } -+ - if (task) { -+ cred = __task_cred(task); -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ if (!tmpcred->uid || (tmpcred->uid == cred->uid) -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ || in_group_p(CONFIG_GRKERNSEC_PROC_GID) -+#endif -+ ) { -+#endif - 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 - } -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ } else { -+ rcu_read_unlock(); -+ return -ENOENT; -+ } -+#endif - } - rcu_read_unlock(); - return 0; -@@ -1787,11 +1876,20 @@ int pid_revalidate(struct dentry *dentry - - 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; -@@ -1909,7 +2007,8 @@ static int proc_fd_info(struct inode *in - 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) { -@@ -2169,11 +2268,21 @@ static const struct file_operations proc - */ - static int proc_fd_permission(struct inode *inode, int mask, unsigned int flags) - { -+ struct task_struct *task; - int rv = generic_permission(inode, mask, flags, NULL); -- 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; - } - -@@ -2283,6 +2392,9 @@ static struct dentry *proc_pident_lookup - 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. -@@ -2327,6 +2439,9 @@ static int proc_pident_readdir(struct fi - 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) { -@@ -2597,7 +2712,7 @@ static void *proc_self_follow_link(struc - 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); - } -@@ -2795,7 +2910,7 @@ static const struct pid_entry tgid_base_ - 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), -@@ -2820,10 +2935,10 @@ static const struct pid_entry tgid_base_ - #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 -@@ -2857,6 +2972,9 @@ static const struct pid_entry tgid_base_ - #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, -@@ -2982,7 +3100,14 @@ static struct dentry *proc_pid_instantia - 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; -@@ -3024,7 +3149,11 @@ struct dentry *proc_pid_lookup(struct in - 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; -@@ -3089,6 +3218,11 @@ int proc_pid_readdir(struct file * filp, - { - unsigned int nr; - struct task_struct *reaper; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ const struct cred *tmpcred = current_cred(); -+ const struct cred *itercred; -+#endif -+ filldir_t __filldir = filldir; - struct tgid_iter iter; - struct pid_namespace *ns; - -@@ -3112,8 +3246,27 @@ int proc_pid_readdir(struct file * filp, - for (iter = next_tgid(ns, iter); - iter.task; - iter.tgid += 1, iter = next_tgid(ns, iter)) { -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ rcu_read_lock(); -+ itercred = __task_cred(iter.task); -+#endif -+ if (gr_pid_is_chrooted(iter.task) || gr_check_hidden_task(iter.task) -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ || (tmpcred->uid && (itercred->uid != tmpcred->uid) -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ && !in_group_p(CONFIG_GRKERNSEC_PROC_GID) -+#endif -+ ) -+#endif -+ ) -+ __filldir = &gr_fake_filldir; -+ else -+ __filldir = filldir; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ rcu_read_unlock(); -+#endif - filp->f_pos = iter.tgid + TGID_OFFSET; -- if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) { -+ if (proc_pid_fill_cache(filp, dirent, __filldir, iter) < 0) { - put_task_struct(iter.task); - goto out; - } -@@ -3141,7 +3294,7 @@ static const struct pid_entry tid_base_s - 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), -@@ -3165,10 +3318,10 @@ static const struct pid_entry tid_base_s - #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 -urNp linux-3.0.4/fs/proc/cmdline.c linux-3.0.4/fs/proc/cmdline.c ---- linux-3.0.4/fs/proc/cmdline.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/cmdline.c 2011-08-23 21:48:14.000000000 -0400 -@@ -23,7 +23,11 @@ static const struct file_operations cmdl - - 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 -urNp linux-3.0.4/fs/proc/devices.c linux-3.0.4/fs/proc/devices.c ---- linux-3.0.4/fs/proc/devices.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/devices.c 2011-08-23 21:48:14.000000000 -0400 -@@ -64,7 +64,11 @@ static const struct file_operations proc - - 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 -urNp linux-3.0.4/fs/proc/inode.c linux-3.0.4/fs/proc/inode.c ---- linux-3.0.4/fs/proc/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -440,7 +440,11 @@ struct inode *proc_get_inode(struct supe - 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 -urNp linux-3.0.4/fs/proc/internal.h linux-3.0.4/fs/proc/internal.h ---- linux-3.0.4/fs/proc/internal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/internal.h 2011-08-23 21:48:14.000000000 -0400 -@@ -51,6 +51,9 @@ extern int proc_pid_status(struct seq_fi - 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_maps_operations; -diff -urNp linux-3.0.4/fs/proc/Kconfig linux-3.0.4/fs/proc/Kconfig ---- linux-3.0.4/fs/proc/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/proc/kcore.c linux-3.0.4/fs/proc/kcore.c ---- linux-3.0.4/fs/proc/kcore.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/kcore.c 2011-08-23 21:48:14.000000000 -0400 -@@ -321,6 +321,8 @@ static void elf_kcore_store_hdr(char *bu - off_t offset = 0; - struct kcore_list *m; - -+ pax_track_stack(); -+ - /* setup ELF header */ - elf = (struct elfhdr *) bufp; - bufp += sizeof(struct elfhdr); -@@ -478,9 +480,10 @@ read_kcore(struct file *file, char __use - * 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; - -@@ -509,20 +512,23 @@ read_kcore(struct file *file, char __use - 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 distingush 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; -@@ -542,6 +548,9 @@ read_kcore(struct file *file, char __use - - 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 -urNp linux-3.0.4/fs/proc/meminfo.c linux-3.0.4/fs/proc/meminfo.c ---- linux-3.0.4/fs/proc/meminfo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/meminfo.c 2011-08-23 21:48:14.000000000 -0400 -@@ -29,6 +29,8 @@ static int meminfo_proc_show(struct seq_ - unsigned long pages[NR_LRU_LISTS]; - int lru; - -+ pax_track_stack(); -+ - /* - * display in kilobytes. - */ -@@ -157,7 +159,7 @@ static int meminfo_proc_show(struct seq_ - 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 -urNp linux-3.0.4/fs/proc/nommu.c linux-3.0.4/fs/proc/nommu.c ---- linux-3.0.4/fs/proc/nommu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/nommu.c 2011-08-23 21:47:56.000000000 -0400 -@@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_ - 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 -urNp linux-3.0.4/fs/proc/proc_net.c linux-3.0.4/fs/proc/proc_net.c ---- linux-3.0.4/fs/proc/proc_net.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/proc_net.c 2011-08-23 21:48:14.000000000 -0400 -@@ -105,6 +105,17 @@ static struct net *get_proc_task_net(str - 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 -urNp linux-3.0.4/fs/proc/proc_sysctl.c linux-3.0.4/fs/proc/proc_sysctl.c ---- linux-3.0.4/fs/proc/proc_sysctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/proc_sysctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -8,6 +8,8 @@ - #include <linux/namei.h> - #include "internal.h" - -+extern __u32 gr_handle_sysctl(const struct ctl_table *table, 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; -@@ -111,6 +113,9 @@ static struct dentry *proc_sys_lookup(st - if (!p) - goto out; - -+ if (gr_handle_sysctl(p, MAY_EXEC)) -+ goto out; -+ - err = ERR_PTR(-ENOMEM); - inode = proc_sys_make_inode(dir->i_sb, h ? h : head, p); - if (h) -@@ -230,6 +235,9 @@ static int scan(struct ctl_table_header - if (*pos < file->f_pos) - continue; - -+ if (gr_handle_sysctl(table, 0)) -+ continue; -+ - res = proc_sys_fill_cache(file, dirent, filldir, head, table); - if (res) - return res; -@@ -355,6 +363,9 @@ static int proc_sys_getattr(struct vfsmo - if (IS_ERR(head)) - return PTR_ERR(head); - -+ if (table && gr_handle_sysctl(table, MAY_EXEC)) -+ return -ENOENT; -+ - generic_fillattr(inode, stat); - if (table) - stat->mode = (stat->mode & S_IFMT) | table->mode; -diff -urNp linux-3.0.4/fs/proc/root.c linux-3.0.4/fs/proc/root.c ---- linux-3.0.4/fs/proc/root.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/root.c 2011-08-23 21:48:14.000000000 -0400 -@@ -123,7 +123,15 @@ 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 -urNp linux-3.0.4/fs/proc/task_mmu.c linux-3.0.4/fs/proc/task_mmu.c ---- linux-3.0.4/fs/proc/task_mmu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/task_mmu.c 2011-08-23 21:48:14.000000000 -0400 -@@ -51,8 +51,13 @@ void task_mem(struct seq_file *m, struct - "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), - hiwater_rss << (PAGE_SHIFT-10), -@@ -60,7 +65,13 @@ void task_mem(struct seq_file *m, struct - 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 -+ , mm->context.user_cs_base, mm->context.user_cs_limit -+#endif -+ -+ ); - } - - unsigned long task_vsize(struct mm_struct *mm) -@@ -207,6 +218,12 @@ static int do_maps_open(struct inode *in - return ret; - } - -+#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 void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) - { - struct mm_struct *mm = vma->vm_mm; -@@ -225,13 +242,13 @@ static void show_map_vma(struct seq_file - 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, -@@ -240,7 +257,11 @@ static void show_map_vma(struct seq_file - 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); - - /* -@@ -249,7 +270,7 @@ static void show_map_vma(struct seq_file - */ - if (file) { - pad_len_spaces(m, len); -- seq_path(m, &file->f_path, "\n"); -+ seq_path(m, &file->f_path, "\n\\"); - } else { - const char *name = arch_vma_name(vma); - if (!name) { -@@ -257,8 +278,9 @@ static void show_map_vma(struct seq_file - if (vma->vm_start <= mm->brk && - vma->vm_end >= mm->start_brk) { - name = "[heap]"; -- } else if (vma->vm_start <= mm->start_stack && -- vma->vm_end >= mm->start_stack) { -+ } else if ((vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) || -+ (vma->vm_start <= mm->start_stack && -+ vma->vm_end >= mm->start_stack)) { - name = "[stack]"; - } - } else { -@@ -433,11 +455,16 @@ static int show_smap(struct seq_file *m, - }; - - 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); - - seq_printf(m, -@@ -455,7 +482,11 @@ static int show_smap(struct seq_file *m, - "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, -@@ -1001,7 +1032,7 @@ static int show_numa_map(struct seq_file - - 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 if (vma->vm_start <= mm->start_stack && -diff -urNp linux-3.0.4/fs/proc/task_nommu.c linux-3.0.4/fs/proc/task_nommu.c ---- linux-3.0.4/fs/proc/task_nommu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/proc/task_nommu.c 2011-08-23 21:47:56.000000000 -0400 -@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct - 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); -@@ -166,7 +166,7 @@ static int nommu_vma_show(struct seq_fil - - if (file) { - pad_len_spaces(m, len); -- seq_path(m, &file->f_path, ""); -+ seq_path(m, &file->f_path, "\n\\"); - } else if (mm) { - if (vma->vm_start <= mm->start_stack && - vma->vm_end >= mm->start_stack) { -diff -urNp linux-3.0.4/fs/quota/netlink.c linux-3.0.4/fs/quota/netlink.c ---- linux-3.0.4/fs/quota/netlink.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/quota/netlink.c 2011-08-23 21:47:56.000000000 -0400 -@@ -33,7 +33,7 @@ static struct genl_family quota_genl_fam - 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, unsi - "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 -urNp linux-3.0.4/fs/readdir.c linux-3.0.4/fs/readdir.c ---- linux-3.0.4/fs/readdir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/readdir.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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, cons - 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 in - - 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 c - 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, - 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 - 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 - - buf.current_dir = dirent; - buf.previous = NULL; -+ buf.file = file; - buf.count = count; - buf.error = 0; - -diff -urNp linux-3.0.4/fs/reiserfs/dir.c linux-3.0.4/fs/reiserfs/dir.c ---- linux-3.0.4/fs/reiserfs/dir.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/dir.c 2011-08-23 21:48:14.000000000 -0400 -@@ -66,6 +66,8 @@ int reiserfs_readdir_dentry(struct dentr - struct reiserfs_dir_entry de; - int ret = 0; - -+ pax_track_stack(); -+ - reiserfs_write_lock(inode->i_sb); - - reiserfs_check_lock_depth(inode->i_sb, "readdir"); -diff -urNp linux-3.0.4/fs/reiserfs/do_balan.c linux-3.0.4/fs/reiserfs/do_balan.c ---- linux-3.0.4/fs/reiserfs/do_balan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/do_balan.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb, - 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 -urNp linux-3.0.4/fs/reiserfs/journal.c linux-3.0.4/fs/reiserfs/journal.c ---- linux-3.0.4/fs/reiserfs/journal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/journal.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2299,6 +2299,8 @@ static struct buffer_head *reiserfs_brea - struct buffer_head *bh; - int i, j; - -+ pax_track_stack(); -+ - bh = __getblk(dev, block, bufsize); - if (buffer_uptodate(bh)) - return (bh); -diff -urNp linux-3.0.4/fs/reiserfs/namei.c linux-3.0.4/fs/reiserfs/namei.c ---- linux-3.0.4/fs/reiserfs/namei.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/namei.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1225,6 +1225,8 @@ static int reiserfs_rename(struct inode - unsigned long savelink = 1; - struct timespec ctime; - -+ pax_track_stack(); -+ - /* three balancings: (1) old name removal, (2) new name insertion - and (3) maybe "save" link insertion - stat data updates: (1) old directory, -diff -urNp linux-3.0.4/fs/reiserfs/procfs.c linux-3.0.4/fs/reiserfs/procfs.c ---- linux-3.0.4/fs/reiserfs/procfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/procfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -113,7 +113,7 @@ static int show_super(struct seq_file *m - "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), -@@ -299,6 +299,8 @@ static int show_journal(struct seq_file - struct journal_params *jp = &rs->s_v1.s_journal; - char b[BDEVNAME_SIZE]; - -+ pax_track_stack(); -+ - seq_printf(m, /* on-disk fields */ - "jp_journal_1st_block: \t%i\n" - "jp_journal_dev: \t%s[%x]\n" -diff -urNp linux-3.0.4/fs/reiserfs/stree.c linux-3.0.4/fs/reiserfs/stree.c ---- linux-3.0.4/fs/reiserfs/stree.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/stree.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1196,6 +1196,8 @@ int reiserfs_delete_item(struct reiserfs - int iter = 0; - #endif - -+ pax_track_stack(); -+ - BUG_ON(!th->t_trans_id); - - init_tb_struct(th, &s_del_balance, sb, path, -@@ -1333,6 +1335,8 @@ void reiserfs_delete_solid_item(struct r - int retval; - int quota_cut_bytes = 0; - -+ pax_track_stack(); -+ - BUG_ON(!th->t_trans_id); - - le_key2cpu_key(&cpu_key, key); -@@ -1562,6 +1566,8 @@ int reiserfs_cut_from_item(struct reiser - int quota_cut_bytes; - loff_t tail_pos = 0; - -+ pax_track_stack(); -+ - BUG_ON(!th->t_trans_id); - - init_tb_struct(th, &s_cut_balance, inode->i_sb, path, -@@ -1957,6 +1963,8 @@ int reiserfs_paste_into_item(struct reis - int retval; - int fs_gen; - -+ pax_track_stack(); -+ - BUG_ON(!th->t_trans_id); - - fs_gen = get_generation(inode->i_sb); -@@ -2045,6 +2053,8 @@ int reiserfs_insert_item(struct reiserfs - int fs_gen = 0; - int quota_bytes = 0; - -+ pax_track_stack(); -+ - BUG_ON(!th->t_trans_id); - - if (inode) { /* Do we count quotas for item? */ -diff -urNp linux-3.0.4/fs/reiserfs/super.c linux-3.0.4/fs/reiserfs/super.c ---- linux-3.0.4/fs/reiserfs/super.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/reiserfs/super.c 2011-08-23 21:48:14.000000000 -0400 -@@ -927,6 +927,8 @@ static int reiserfs_parse_options(struct - {.option_name = NULL} - }; - -+ pax_track_stack(); -+ - *blocks = 0; - if (!options || !*options) - /* use default configuration: create tails, journaling on, no -diff -urNp linux-3.0.4/fs/select.c linux-3.0.4/fs/select.c ---- linux-3.0.4/fs/select.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/select.c 2011-08-23 21:48:14.000000000 -0400 -@@ -20,6 +20,7 @@ - #include <linux/module.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> -@@ -403,6 +404,8 @@ int do_select(int n, fd_set_bits *fds, s - int retval, i, timed_out = 0; - unsigned long slack = 0; - -+ pax_track_stack(); -+ - rcu_read_lock(); - retval = max_select_fd(n, fds); - rcu_read_unlock(); -@@ -528,6 +531,8 @@ int core_sys_select(int n, fd_set __user - /* Allocate small arguments on the stack to save memory and be faster */ - long stack_fds[SELECT_STACK_ALLOC/sizeof(long)]; - -+ pax_track_stack(); -+ - ret = -EINVAL; - if (n < 0) - goto out_nofds; -@@ -837,6 +842,9 @@ int do_sys_poll(struct pollfd __user *uf - struct poll_list *walk = head; - unsigned long todo = nfds; - -+ pax_track_stack(); -+ -+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1); - if (nfds > rlimit(RLIMIT_NOFILE)) - return -EINVAL; - -diff -urNp linux-3.0.4/fs/seq_file.c linux-3.0.4/fs/seq_file.c ---- linux-3.0.4/fs/seq_file.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/seq_file.c 2011-08-23 21:47:56.000000000 -0400 -@@ -76,7 +76,8 @@ static int traverse(struct seq_file *m, - return 0; - } - if (!m->buf) { -- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); -+ m->size = PAGE_SIZE; -+ m->buf = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (!m->buf) - return -ENOMEM; - } -@@ -116,7 +117,8 @@ static int traverse(struct seq_file *m, - Eoverflow: - m->op->stop(m, p); - kfree(m->buf); -- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); -+ m->size <<= 1; -+ m->buf = kmalloc(m->size, GFP_KERNEL); - return !m->buf ? -ENOMEM : -EAGAIN; - } - -@@ -169,7 +171,8 @@ ssize_t seq_read(struct file *file, char - m->version = file->f_version; - /* grab buffer if we didn't have one */ - if (!m->buf) { -- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); -+ m->size = PAGE_SIZE; -+ m->buf = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (!m->buf) - goto Enomem; - } -@@ -210,7 +213,8 @@ ssize_t seq_read(struct file *file, char - goto Fill; - m->op->stop(m, p); - kfree(m->buf); -- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); -+ m->size <<= 1; -+ m->buf = kmalloc(m->size, GFP_KERNEL); - if (!m->buf) - goto Enomem; - m->count = 0; -@@ -549,7 +553,7 @@ static void single_stop(struct seq_file - 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 -urNp linux-3.0.4/fs/splice.c linux-3.0.4/fs/splice.c ---- linux-3.0.4/fs/splice.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/splice.c 2011-08-23 21:48:14.000000000 -0400 -@@ -194,7 +194,7 @@ ssize_t splice_to_pipe(struct pipe_inode - 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 - 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); -@@ -320,6 +320,8 @@ __generic_file_splice_read(struct file * - .spd_release = spd_release_page, - }; - -+ pax_track_stack(); -+ - if (splice_grow_spd(pipe, &spd)) - return -ENOMEM; - -@@ -560,7 +562,7 @@ static ssize_t kernel_readv(struct file - 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, (__force const struct iovec __user *)vec, vlen, &pos); - set_fs(old_fs); - - return res; -@@ -575,7 +577,7 @@ static ssize_t kernel_write(struct file - 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, (__force const char __user *)buf, count, &pos); - set_fs(old_fs); - - return res; -@@ -603,6 +605,8 @@ ssize_t default_file_splice_read(struct - .spd_release = spd_release_page, - }; - -+ pax_track_stack(); -+ - if (splice_grow_spd(pipe, &spd)) - return -ENOMEM; - -@@ -626,7 +630,7 @@ ssize_t default_file_splice_read(struct - 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 = (__force void __user *) page_address(page); - vec[i].iov_len = this_len; - spd.pages[i] = page; - spd.nr_pages++; -@@ -846,10 +850,10 @@ 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) -@@ -1182,7 +1186,7 @@ ssize_t splice_direct_to_actor(struct fi - * 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; - } -@@ -1619,6 +1623,8 @@ static long vmsplice_to_pipe(struct file - }; - long ret; - -+ pax_track_stack(); -+ - pipe = get_pipe_info(file); - if (!pipe) - return -EBADF; -@@ -1734,9 +1740,9 @@ static int ipipe_prep(struct pipe_inode_ - 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; -@@ -1768,7 +1774,7 @@ static int opipe_prep(struct pipe_inode_ - pipe_lock(pipe); - - while (pipe->nrbufs >= pipe->buffers) { -- if (!pipe->readers) { -+ if (!atomic_read(&pipe->readers)) { - send_sig(SIGPIPE, current, 0); - ret = -EPIPE; - break; -@@ -1781,9 +1787,9 @@ static int opipe_prep(struct pipe_inode_ - 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); -@@ -1819,14 +1825,14 @@ 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; - - /* -@@ -1923,7 +1929,7 @@ static int link_pipe(struct pipe_inode_i - pipe_double_lock(ipipe, opipe); - - do { -- if (!opipe->readers) { -+ if (!atomic_read(&opipe->readers)) { - send_sig(SIGPIPE, current, 0); - if (!ret) - ret = -EPIPE; -@@ -1968,7 +1974,7 @@ static int link_pipe(struct pipe_inode_i - * 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 -urNp linux-3.0.4/fs/sysfs/file.c linux-3.0.4/fs/sysfs/file.c ---- linux-3.0.4/fs/sysfs/file.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/sysfs/file.c 2011-08-23 21:47:56.000000000 -0400 -@@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent - - 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 dentr - 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 - 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 fi - - 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_di - - od = sd->s_attr.open; - if (od) { -- atomic_inc(&od->event); -+ atomic_inc_unchecked(&od->event); - wake_up_interruptible(&od->poll); - } - -diff -urNp linux-3.0.4/fs/sysfs/mount.c linux-3.0.4/fs/sysfs/mount.c ---- linux-3.0.4/fs/sysfs/mount.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/sysfs/mount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -36,7 +36,11 @@ struct sysfs_dirent sysfs_root = { - .s_name = "", - .s_count = ATOMIC_INIT(1), - .s_flags = SYSFS_DIR | (KOBJ_NS_TYPE_NONE << SYSFS_NS_TYPE_SHIFT), -+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT -+ .s_mode = S_IFDIR | S_IRWXU, -+#else - .s_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO, -+#endif - .s_ino = 1, - }; - -diff -urNp linux-3.0.4/fs/sysfs/symlink.c linux-3.0.4/fs/sysfs/symlink.c ---- linux-3.0.4/fs/sysfs/symlink.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/sysfs/symlink.c 2011-08-23 21:47:56.000000000 -0400 -@@ -286,7 +286,7 @@ static void *sysfs_follow_link(struct de - - 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 -urNp linux-3.0.4/fs/udf/inode.c linux-3.0.4/fs/udf/inode.c ---- linux-3.0.4/fs/udf/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/udf/inode.c 2011-08-23 21:48:14.000000000 -0400 -@@ -560,6 +560,8 @@ static struct buffer_head *inode_getblk( - int goal = 0, pgoal = iinfo->i_location.logicalBlockNum; - int lastblock = 0; - -+ pax_track_stack(); -+ - prev_epos.offset = udf_file_entry_alloc_offset(inode); - prev_epos.block = iinfo->i_location; - prev_epos.bh = NULL; -diff -urNp linux-3.0.4/fs/udf/misc.c linux-3.0.4/fs/udf/misc.c ---- linux-3.0.4/fs/udf/misc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/udf/misc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -286,7 +286,7 @@ void udf_new_tag(char *data, uint16_t id - - 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 -urNp linux-3.0.4/fs/utimes.c linux-3.0.4/fs/utimes.c ---- linux-3.0.4/fs/utimes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/utimes.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 *pa - 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 -urNp linux-3.0.4/fs/xattr_acl.c linux-3.0.4/fs/xattr_acl.c ---- linux-3.0.4/fs/xattr_acl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xattr_acl.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/xattr.c linux-3.0.4/fs/xattr.c ---- linux-3.0.4/fs/xattr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xattr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -254,7 +254,7 @@ 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; -@@ -278,7 +278,13 @@ setxattr(struct dentry *d, const char __ - return PTR_ERR(kvalue); - } - -- 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: - kfree(kvalue); - return error; - } -@@ -295,7 +301,7 @@ SYSCALL_DEFINE5(setxattr, const char __u - 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); -@@ -314,7 +320,7 @@ SYSCALL_DEFINE5(lsetxattr, const char __ - 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); -@@ -325,17 +331,15 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, cons - 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(f->f_path.mnt); - } - fput(f); -diff -urNp linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl32.c linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl32.c ---- linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -73,6 +73,7 @@ xfs_compat_ioc_fsgeometry_v1( - xfs_fsop_geom_t fsgeo; - int error; - -+ memset(&fsgeo, 0, sizeof(fsgeo)); - error = xfs_fs_geometry(mp, &fsgeo, 3); - if (error) - return -error; -diff -urNp linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl.c linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl.c ---- linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xfs/linux-2.6/xfs_ioctl.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/fs/xfs/linux-2.6/xfs_iops.c linux-3.0.4/fs/xfs/linux-2.6/xfs_iops.c ---- linux-3.0.4/fs/xfs/linux-2.6/xfs_iops.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xfs/linux-2.6/xfs_iops.c 2011-08-23 21:47:56.000000000 -0400 -@@ -437,7 +437,7 @@ 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 -urNp linux-3.0.4/fs/xfs/xfs_bmap.c linux-3.0.4/fs/xfs/xfs_bmap.c ---- linux-3.0.4/fs/xfs/xfs_bmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xfs/xfs_bmap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -253,7 +253,7 @@ 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 -urNp linux-3.0.4/fs/xfs/xfs_dir2_sf.c linux-3.0.4/fs/xfs/xfs_dir2_sf.c ---- linux-3.0.4/fs/xfs/xfs_dir2_sf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/fs/xfs/xfs_dir2_sf.c 2011-08-23 21:47:56.000000000 -0400 -@@ -780,7 +780,15 @@ xfs_dir2_sf_getdents( - } - - ino = xfs_dir2_sf_get_inumber(sfp, xfs_dir2_sf_inumberp(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 -urNp linux-3.0.4/grsecurity/gracl_alloc.c linux-3.0.4/grsecurity/gracl_alloc.c ---- linux-3.0.4/grsecurity/gracl_alloc.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_alloc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/gracl.c linux-3.0.4/grsecurity/gracl.c ---- linux-3.0.4/grsecurity/gracl.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,4106 @@ -+#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/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/pid_namespace.h> -+#include <linux/fdtable.h> -+#include <linux/percpu.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; -+ 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 (vfsmnt->mnt_parent == vfsmnt) { -+ goto out; -+ } -+ dentry = vfsmnt->mnt_mountpoint; -+ vfsmnt = vfsmnt->mnt_parent; -+ 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_task; -+ -+ 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; -+} -+ -+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; -+ -+ curr = &acl_role_set.r_hash[index]; -+ -+ /* if role was already inserted due to domains and already has -+ a role in the same bucket as it attached, then we need to -+ combine these two buckets -+ */ -+ if (role->next) { -+ tmp = role->next; -+ while (tmp->next) -+ tmp = tmp->next; -+ tmp->next = *curr; -+ } else -+ role->next = *curr; -+ *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_task; -+ 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); -+ -+ /* 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; -+ 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) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ for (i = 0; i < num_sprole_pws; i++) { -+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw)); -+ if (!sptmp) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(sptmp, arg->sprole_pws + i, -+ sizeof (struct sprole_pw))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ len = -+ strnlen_user(sptmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= GR_SPROLE_LEN) { -+ err = -EINVAL; -+ goto cleanup; -+ } -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(tmp, sptmp->rolename, len)) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ 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) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(&r_utmp2, r_utmp + r_num, -+ sizeof (struct acl_role_label *))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(r_tmp, r_utmp2, -+ sizeof (struct acl_role_label))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= PATH_MAX) { -+ err = -EINVAL; -+ goto cleanup; -+ } -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(tmp, r_tmp->rolename, len)) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ 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) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ 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) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ err = copy_user_allowedips(r_tmp); -+ if (err) -+ goto cleanup; -+ -+ /* copy domain info */ -+ if (r_tmp->domain_children != NULL) { -+ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t)); -+ if (domainlist == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ r_tmp->domain_children = domainlist; -+ } -+ -+ err = copy_user_transitions(r_tmp); -+ if (err) -+ goto cleanup; -+ -+ 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) -+ goto cleanup; -+ -+ /* set nested subject list to null */ -+ r_tmp->hash->first = NULL; -+ -+ insert_acl_role_label(r_tmp); -+ } -+ -+ goto return_err; -+ cleanup: -+ free_variables(); -+ return_err: -+ 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, -+ struct dentry *dentry, 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, (struct dentry *)orig_dentry, -+ (struct vfsmount *)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 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->mnt_parent == mnt) -+ break; -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ 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 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->mnt_parent == 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 = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ 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_sysctl(const char *path, 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, path, (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_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; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (GR_CREATE | GR_LINK); -+ -+ obj = chk_obj_label(old_dentry, old_mnt, current->acl); -+ oldmode = obj->mode; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ oldmode |= (GR_CREATE | GR_LINK); -+ -+ needmode = GR_CREATE | GR_AUDIT_CREATE | GR_SUPPRESS; -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) -+ needmode |= GR_SETID | GR_AUDIT_SETID; -+ -+ newmode = -+ gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ oldmode | needmode); -+ -+ needmode = newmode & (GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | -+ GR_SETID | GR_READ | GR_FIND | GR_DELETE | -+ GR_INHERIT | GR_AUDIT_INHERIT); -+ -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID) && !(newmode & GR_SETID)) -+ goto bad; -+ -+ if ((oldmode & needmode) != needmode) -+ goto bad; -+ -+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS); -+ if ((newmode & needmode) != needmode) -+ goto bad; -+ -+ 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); -+ return (GR_CREATE | GR_LINK); -+ } else if (newmode & GR_SUPPRESS) -+ return GR_SUPPRESS; -+ else -+ return 0; -+} -+ -+__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; -+} -+ -+__u32 -+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent, -+ const struct vfsmount * mnt, const __u32 mode) -+{ -+ struct name_entry *match; -+ struct acl_object_label *matchpo; -+ struct acl_subject_label *curracl; -+ char *path; -+ __u32 retval; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (mode & ~GR_AUDITS); -+ -+ preempt_disable(); -+ path = gr_to_filename_rbac(new_dentry, mnt); -+ match = lookup_name_entry_create(path); -+ -+ if (!match) -+ goto check_parent; -+ -+ curracl = current->acl; -+ -+ read_lock(&gr_inode_lock); -+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl); -+ read_unlock(&gr_inode_lock); -+ -+ if (matchpo) { -+ if ((matchpo->mode & mode) != -+ (mode & ~(GR_AUDITS | GR_SUPPRESS)) -+ && curracl->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ gr_log_learn(new_dentry, mnt, new_mode); -+ -+ preempt_enable(); -+ return new_mode; -+ } -+ preempt_enable(); -+ return (matchpo->mode & mode); -+ } -+ -+ check_parent: -+ curracl = current->acl; -+ -+ matchpo = chk_obj_create_label(parent, mnt, curracl, path); -+ retval = matchpo->mode & mode; -+ -+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))) -+ && (curracl->mode & (GR_LEARN | GR_INHERITLEARN))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ gr_log_learn(new_dentry, mnt, new_mode); -+ preempt_enable(); -+ return new_mode; -+ } -+ -+ preempt_enable(); -+ return retval; -+} -+ -+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; -+ } -+} -+ -+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); -+ -+ /* 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_share) -+{ -+ 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); -+ -+ task_lock(task); -+ if ((((task->ptrace & PT_PTRACED) || unsafe_share) && -+ !(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)))) { -+ task_unlock(task); -+ if (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; -+ } -+ task_unlock(task); -+ -+ 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, const struct dentry *dentry, -+ const struct vfsmount *mnt) -+{ -+ struct acl_subject_label *subj; -+ struct acl_role_label *role; -+ unsigned int x; -+ ino_t ino = dentry->d_inode->i_ino; -+ dev_t dev = __get_dev(dentry); -+ -+ 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; -+} -+ -+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_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; -+ 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 && new_dentry->d_inode)) { -+ ino_t new_ino = new_dentry->d_inode->i_ino; -+ dev_t new_dev = __get_dev(new_dentry); -+ -+ inodev = lookup_inodev_entry(new_ino, new_dev); -+ if (inodev != NULL && (new_dentry->d_inode->i_nlink <= 1)) -+ 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)) -+ 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 -+ -+#ifdef CONFIG_SYSCTL -+/* Eric Biederman likes breaking userland ABI and every inode-based security -+ system to save 35kb of memory */ -+ -+/* we modify the passed in filename, but adjust it back before returning */ -+static struct acl_object_label *gr_lookup_by_name(char *name, unsigned int len) -+{ -+ struct name_entry *nmatch; -+ char *p, *lastp = NULL; -+ struct acl_object_label *obj = NULL, *tmp; -+ struct acl_subject_label *tmpsubj; -+ char c = '\0'; -+ -+ read_lock(&gr_inode_lock); -+ -+ p = name + len - 1; -+ do { -+ nmatch = lookup_name_entry(name); -+ if (lastp != NULL) -+ *lastp = c; -+ -+ if (nmatch == NULL) -+ goto next_component; -+ tmpsubj = current->acl; -+ do { -+ obj = lookup_acl_obj_label(nmatch->inode, nmatch->device, tmpsubj); -+ if (obj != NULL) { -+ tmp = obj->globbed; -+ while (tmp) { -+ if (!glob_match(tmp->filename, name)) { -+ obj = tmp; -+ goto found_obj; -+ } -+ tmp = tmp->next; -+ } -+ goto found_obj; -+ } -+ } while ((tmpsubj = tmpsubj->parent_subject)); -+next_component: -+ /* end case */ -+ if (p == name) -+ break; -+ -+ while (*p != '/') -+ p--; -+ if (p == name) -+ lastp = p + 1; -+ else { -+ lastp = p; -+ p--; -+ } -+ c = *lastp; -+ *lastp = '\0'; -+ } while (1); -+found_obj: -+ read_unlock(&gr_inode_lock); -+ /* obj returned will always be non-null */ -+ return obj; -+} -+ -+/* returns 0 when allowing, non-zero on error -+ op of 0 is used for readdir, so we don't log the names of hidden files -+*/ -+__u32 -+gr_handle_sysctl(const struct ctl_table *table, const int op) -+{ -+ struct ctl_table *tmp; -+ const char *proc_sys = "/proc/sys"; -+ char *path; -+ struct acl_object_label *obj; -+ unsigned short len = 0, pos = 0, depth = 0, i; -+ __u32 err = 0; -+ __u32 mode = 0; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ /* for now, ignore operations on non-sysctl entries if it's not a -+ readdir*/ -+ if (table->child != NULL && op != 0) -+ return 0; -+ -+ mode |= GR_FIND; -+ /* it's only a read if it's an entry, read on dirs is for readdir */ -+ if (op & MAY_READ) -+ mode |= GR_READ; -+ if (op & MAY_WRITE) -+ mode |= GR_WRITE; -+ -+ preempt_disable(); -+ -+ path = per_cpu_ptr(gr_shared_page[0], smp_processor_id()); -+ -+ /* it's only a read/write if it's an actual entry, not a dir -+ (which are opened for readdir) -+ */ -+ -+ /* convert the requested sysctl entry into a pathname */ -+ -+ for (tmp = (struct ctl_table *)table; tmp != NULL; tmp = tmp->parent) { -+ len += strlen(tmp->procname); -+ len++; -+ depth++; -+ } -+ -+ if ((len + depth + strlen(proc_sys) + 1) > PAGE_SIZE) { -+ /* deny */ -+ goto out; -+ } -+ -+ memset(path, 0, PAGE_SIZE); -+ -+ memcpy(path, proc_sys, strlen(proc_sys)); -+ -+ pos += strlen(proc_sys); -+ -+ for (; depth > 0; depth--) { -+ path[pos] = '/'; -+ pos++; -+ for (i = 1, tmp = (struct ctl_table *)table; tmp != NULL; tmp = tmp->parent) { -+ if (depth == i) { -+ memcpy(path + pos, tmp->procname, -+ strlen(tmp->procname)); -+ pos += strlen(tmp->procname); -+ } -+ i++; -+ } -+ } -+ -+ obj = gr_lookup_by_name(path, pos); -+ err = obj->mode & (mode | to_gr_audit(mode) | GR_SUPPRESS); -+ -+ if (unlikely((current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) && -+ ((err & mode) != mode))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ err = 0; -+ gr_log_learn_sysctl(path, new_mode); -+ } else if (!(err & GR_FIND) && !(err & GR_SUPPRESS) && op != 0) { -+ gr_log_hidden_sysctl(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, path); -+ err = -ENOENT; -+ } else if (!(err & GR_FIND)) { -+ err = -ENOENT; -+ } else if (((err & mode) & ~GR_FIND) != (mode & ~GR_FIND) && !(err & GR_SUPPRESS)) { -+ gr_log_str4(GR_DONT_AUDIT, GR_SYSCTL_ACL_MSG, "denied", -+ path, (mode & GR_READ) ? " reading" : "", -+ (mode & GR_WRITE) ? " writing" : ""); -+ err = -EACCES; -+ } else if ((err & mode) != mode) { -+ err = -EACCES; -+ } else if ((((err & mode) & ~GR_FIND) == (mode & ~GR_FIND)) && (err & GR_AUDITS)) { -+ gr_log_str4(GR_DO_AUDIT, GR_SYSCTL_ACL_MSG, "successful", -+ path, (mode & GR_READ) ? " reading" : "", -+ (mode & GR_WRITE) ? " writing" : ""); -+ err = 0; -+ } else -+ err = 0; -+ -+ out: -+ preempt_enable(); -+ -+ return err; -+} -+#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 -+ -+ 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_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 -urNp linux-3.0.4/grsecurity/gracl_cap.c linux-3.0.4/grsecurity/gracl_cap.c ---- linux-3.0.4/grsecurity/gracl_cap.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_cap.c 2011-09-14 09:21:24.000000000 -0400 -@@ -0,0 +1,101 @@ -+#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_acl_is_capable(const int cap) -+{ -+ struct task_struct *task = current; -+ const struct cred *cred = current_cred(); -+ 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_nolog(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 = current->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; -+} -+ -diff -urNp linux-3.0.4/grsecurity/gracl_fs.c linux-3.0.4/grsecurity/gracl_fs.c ---- linux-3.0.4/grsecurity/gracl_fs.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_fs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,431 @@ -+#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> -+ -+__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, -+ const int fmode) -+{ -+ __u32 reqmode = GR_FIND; -+ __u32 mode; -+ -+ if (unlikely(!dentry->d_inode)) -+ return reqmode; -+ -+ if (unlikely(fmode & O_APPEND)) -+ reqmode |= GR_APPEND; -+ else if (unlikely(fmode & FMODE_WRITE)) -+ reqmode |= GR_WRITE; -+ if (likely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY))) -+ reqmode |= GR_READ; -+ if ((fmode & FMODE_GREXEC) && (fmode & __FMODE_EXEC)) -+ 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, const int fmode, -+ const int imode) -+{ -+ __u32 reqmode = GR_WRITE | GR_CREATE; -+ __u32 mode; -+ -+ if (unlikely(fmode & O_APPEND)) -+ reqmode |= GR_APPEND; -+ if (unlikely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY))) -+ reqmode |= GR_READ; -+ if (unlikely((fmode & 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_fchmod(const struct dentry *dentry, const struct vfsmount *mnt, -+ mode_t mode) -+{ -+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode))) -+ return 1; -+ -+ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) { -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, -+ GR_FCHMOD_ACL_MSG); -+ } else { -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_FCHMOD_ACL_MSG); -+ } -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt, -+ mode_t mode) -+{ -+ if (unlikely((mode != (mode_t)-1) && (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 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 -urNp linux-3.0.4/grsecurity/gracl_ip.c linux-3.0.4/grsecurity/gracl_ip.c ---- linux-3.0.4/grsecurity/gracl_ip.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_ip.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,381 @@ -+#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) -+{ -+ 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 -urNp linux-3.0.4/grsecurity/gracl_learn.c linux-3.0.4/grsecurity/gracl_learn.c ---- linux-3.0.4/grsecurity/gracl_learn.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_learn.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/gracl_res.c linux-3.0.4/grsecurity/gracl_res.c ---- linux-3.0.4/grsecurity/gracl_res.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_res.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/gracl_segv.c linux-3.0.4/grsecurity/gracl_segv.c ---- linux-3.0.4/grsecurity/gracl_segv.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_segv.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 acl_subject_label *curr2; -+ 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); -+ do_each_thread(tsk2, tsk) { -+ if (likely(tsk != task)) { -+ curr2 = tsk->acl; -+ -+ if (curr2->device == curr->device && -+ curr2->inode == curr->inode) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } -+ } while_each_thread(tsk2, tsk); -+ 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 -urNp linux-3.0.4/grsecurity/gracl_shm.c linux-3.0.4/grsecurity/gracl_shm.c ---- linux-3.0.4/grsecurity/gracl_shm.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/gracl_shm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_chdir.c linux-3.0.4/grsecurity/grsec_chdir.c ---- linux-3.0.4/grsecurity/grsec_chdir.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_chdir.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_chroot.c linux-3.0.4/grsecurity/grsec_chroot.c ---- linux-3.0.4/grsecurity/grsec_chroot.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_chroot.c 2011-09-15 06:47:48.000000000 -0400 -@@ -0,0 +1,351 @@ -+#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 <linux/pid_namespace.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_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_chroot_is_capable(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(current)) { -+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; -+ if (cap_raised(chroot_caps, cap)) { -+ const struct cred *creds = current_cred(); -+ if (cap_raised(creds->cap_effective, cap) && cap < captab_log_entries) { -+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, current, captab_log[cap]); -+ } -+ return 0; -+ } -+ } -+#endif -+ return 1; -+} -+ -+int -+gr_chroot_is_capable_nolog(const int cap) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(current)) { -+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; -+ if (cap_raised(chroot_caps, cap)) { -+ return 0; -+ } -+ } -+#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 -urNp linux-3.0.4/grsecurity/grsec_disabled.c linux-3.0.4/grsecurity/grsec_disabled.c ---- linux-3.0.4/grsecurity/grsec_disabled.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_disabled.c 2011-09-24 08:13:01.000000000 -0400 -@@ -0,0 +1,433 @@ -+#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; -+} -+ -+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, -+ const int fmode) -+{ -+ 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_fchmod(const struct dentry * dentry, const struct vfsmount * mnt, -+ mode_t mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt, -+ mode_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; -+} -+ -+__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, const int fmode, -+ 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 -urNp linux-3.0.4/grsecurity/grsec_exec.c linux-3.0.4/grsecurity/grsec_exec.c ---- linux-3.0.4/grsecurity/grsec_exec.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_exec.c 2011-09-14 09:20:28.000000000 -0400 -@@ -0,0 +1,145 @@ -+#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_chroot_is_capable(const int cap); -+extern int gr_chroot_is_capable_nolog(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" -+}; -+ -+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_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 -+} -+ -+EXPORT_SYMBOL(gr_is_capable); -+EXPORT_SYMBOL(gr_is_capable_nolog); -diff -urNp linux-3.0.4/grsecurity/grsec_fifo.c linux-3.0.4/grsecurity/grsec_fifo.c ---- linux-3.0.4/grsecurity/grsec_fifo.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_fifo.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_fork.c linux-3.0.4/grsecurity/grsec_fork.c ---- linux-3.0.4/grsecurity/grsec_fork.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_fork.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_init.c linux-3.0.4/grsecurity/grsec_init.c ---- linux-3.0.4/grsecurity/grsec_init.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_init.c 2011-08-25 17:25:12.000000000 -0400 -@@ -0,0 +1,269 @@ -+#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_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_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_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 -urNp linux-3.0.4/grsecurity/grsec_link.c linux-3.0.4/grsecurity/grsec_link.c ---- linux-3.0.4/grsecurity/grsec_link.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_link.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_log.c linux-3.0.4/grsecurity/grsec_log.c ---- linux-3.0.4/grsecurity/grsec_log.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_log.c 2011-09-26 10:46:21.000000000 -0400 -@@ -0,0 +1,315 @@ -+#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) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ 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); -+ gr_log_end(audit); -+ END_LOCKS(audit); -+} -diff -urNp linux-3.0.4/grsecurity/grsec_mem.c linux-3.0.4/grsecurity/grsec_mem.c ---- linux-3.0.4/grsecurity/grsec_mem.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_mem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,33 @@ -+#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; -+} -diff -urNp linux-3.0.4/grsecurity/grsec_mount.c linux-3.0.4/grsecurity/grsec_mount.c ---- linux-3.0.4/grsecurity/grsec_mount.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_mount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_pax.c linux-3.0.4/grsecurity/grsec_pax.c ---- linux-3.0.4/grsecurity/grsec_pax.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_pax.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_ptrace.c linux-3.0.4/grsecurity/grsec_ptrace.c ---- linux-3.0.4/grsecurity/grsec_ptrace.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_ptrace.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,14 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grinternal.h> -+#include <linux/grsecurity.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; -+} -diff -urNp linux-3.0.4/grsecurity/grsec_sig.c linux-3.0.4/grsecurity/grsec_sig.c ---- linux-3.0.4/grsecurity/grsec_sig.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_sig.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,206 @@ -+#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 -+ if (current->pid > 1 && 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 -urNp linux-3.0.4/grsecurity/grsec_sock.c linux-3.0.4/grsecurity/grsec_sock.c ---- linux-3.0.4/grsecurity/grsec_sock.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_sock.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_sysctl.c linux-3.0.4/grsecurity/grsec_sysctl.c ---- linux-3.0.4/grsecurity/grsec_sysctl.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_sysctl.c 2011-08-25 17:26:15.000000000 -0400 -@@ -0,0 +1,433 @@ -+#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 (!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_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 -urNp linux-3.0.4/grsecurity/grsec_time.c linux-3.0.4/grsecurity/grsec_time.c ---- linux-3.0.4/grsecurity/grsec_time.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_time.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/grsec_tpe.c linux-3.0.4/grsecurity/grsec_tpe.c ---- linux-3.0.4/grsecurity/grsec_tpe.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsec_tpe.c 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,39 @@ -+#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(); -+ -+ if (cred->uid && ((grsec_enable_tpe && -+#ifdef CONFIG_GRKERNSEC_TPE_INVERT -+ ((grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid)) || -+ (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))) -+#else -+ in_group_p(grsec_tpe_gid) -+#endif -+ ) || gr_acl_tpe_check()) && -+ (inode->i_uid || (!inode->i_uid && ((inode->i_mode & S_IWGRP) || -+ (inode->i_mode & S_IWOTH))))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ if (cred->uid && grsec_enable_tpe && grsec_enable_tpe_all && -+ ((inode->i_uid && (inode->i_uid != cred->uid)) || -+ (inode->i_mode & S_IWGRP) || (inode->i_mode & S_IWOTH))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+#endif -+#endif -+ return 1; -+} -diff -urNp linux-3.0.4/grsecurity/grsum.c linux-3.0.4/grsecurity/grsum.c ---- linux-3.0.4/grsecurity/grsum.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/grsum.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/grsecurity/Kconfig linux-3.0.4/grsecurity/Kconfig ---- linux-3.0.4/grsecurity/Kconfig 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/Kconfig 2011-09-15 00:00:57.000000000 -0400 -@@ -0,0 +1,1038 @@ -+# -+# grecurity configuration -+# -+ -+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 "Security Level" -+ depends on GRKERNSEC -+ default GRKERNSEC_CUSTOM -+ -+config GRKERNSEC_LOW -+ bool "Low" -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_CHDIR -+ -+ help -+ If you choose this option, several of the grsecurity options will -+ be enabled that will give you greater protection against a number -+ of attacks, while assuring that none of your software will have any -+ conflicts with the additional security measures. If you run a lot -+ of unusual software, or you are having problems with the higher -+ security levels, you should say Y here. With this option, the -+ following features are enabled: -+ -+ - Linking restrictions -+ - FIFO restrictions -+ - Restricted dmesg -+ - Enforced chdir("/") on chroot -+ - Runtime module disabling -+ -+config GRKERNSEC_MEDIUM -+ bool "Medium" -+ select PAX -+ select PAX_EI_PAX -+ select PAX_PT_PAX_FLAGS -+ select PAX_HAVE_ACL_FLAGS -+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_SYSCTL -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_FORKFAIL -+ select GRKERNSEC_TIME -+ select GRKERNSEC_SIGNAL -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_UNIX -+ select GRKERNSEC_CHROOT_MOUNT -+ select GRKERNSEC_CHROOT_PIVOT -+ select GRKERNSEC_CHROOT_DOUBLE -+ select GRKERNSEC_CHROOT_CHDIR -+ select GRKERNSEC_CHROOT_MKNOD -+ select GRKERNSEC_PROC -+ select GRKERNSEC_PROC_USERGROUP -+ select PAX_RANDUSTACK -+ select PAX_ASLR -+ select PAX_RANDMMAP -+ select PAX_REFCOUNT if (X86 || SPARC64) -+ select PAX_USERCOPY if ((X86 || SPARC || PPC || ARM) && (SLAB || SLUB || SLOB)) -+ -+ help -+ If you say Y here, several features in addition to those included -+ in the low additional security level will be enabled. These -+ features provide even more security to your system, though in rare -+ cases they may be incompatible with very old or poorly written -+ software. If you enable this option, make sure that your auth -+ service (identd) is running as gid 1001. With this option, -+ the following features (in addition to those provided in the -+ low additional security level) will be enabled: -+ -+ - Failed fork logging -+ - Time change logging -+ - Signal logging -+ - Deny mounts in chroot -+ - Deny double chrooting -+ - Deny sysctl writes in chroot -+ - Deny mknod in chroot -+ - Deny access to abstract AF_UNIX sockets out of chroot -+ - Deny pivot_root in chroot -+ - Denied writes of /dev/kmem, /dev/mem, and /dev/port -+ - /proc restrictions with special GID set to 10 (usually wheel) -+ - Address Space Layout Randomization (ASLR) -+ - Prevent exploitation of most refcount overflows -+ - Bounds checking of copying between the kernel and userland -+ -+config GRKERNSEC_HIGH -+ bool "High" -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_FORKFAIL -+ select GRKERNSEC_TIME -+ select GRKERNSEC_SIGNAL -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_SHMAT -+ select GRKERNSEC_CHROOT_UNIX -+ select GRKERNSEC_CHROOT_MOUNT -+ select GRKERNSEC_CHROOT_FCHDIR -+ select GRKERNSEC_CHROOT_PIVOT -+ select GRKERNSEC_CHROOT_DOUBLE -+ select GRKERNSEC_CHROOT_CHDIR -+ select GRKERNSEC_CHROOT_MKNOD -+ select GRKERNSEC_CHROOT_CAPS -+ select GRKERNSEC_CHROOT_SYSCTL -+ select GRKERNSEC_CHROOT_FINDTASK -+ select GRKERNSEC_SYSFS_RESTRICT -+ select GRKERNSEC_PROC -+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) -+ select GRKERNSEC_HIDESYM -+ select GRKERNSEC_BRUTE -+ select GRKERNSEC_PROC_USERGROUP -+ select GRKERNSEC_KMEM -+ select GRKERNSEC_RESLOG -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_PROC_ADD -+ select GRKERNSEC_CHROOT_CHMOD -+ select GRKERNSEC_CHROOT_NICE -+ select GRKERNSEC_AUDIT_MOUNT -+ select GRKERNSEC_MODHARDEN if (MODULES) -+ select GRKERNSEC_HARDEN_PTRACE -+ select GRKERNSEC_VM86 if (X86_32) -+ select GRKERNSEC_KERN_LOCKOUT if (X86 || ARM || PPC || SPARC) -+ select PAX -+ select PAX_RANDUSTACK -+ select PAX_ASLR -+ select PAX_RANDMMAP -+ select PAX_NOEXEC -+ select PAX_MPROTECT -+ select PAX_EI_PAX -+ select PAX_PT_PAX_FLAGS -+ select PAX_HAVE_ACL_FLAGS -+ select PAX_KERNEXEC if ((PPC || X86) && (!X86_32 || X86_WP_WORKS_OK) && !XEN) -+ select PAX_MEMORY_UDEREF if (X86 && !XEN) -+ select PAX_RANDKSTACK if (X86_TSC && X86) -+ select PAX_SEGMEXEC if (X86_32) -+ select PAX_PAGEEXEC -+ select PAX_EMUPLT if (ALPHA || PARISC || SPARC) -+ select PAX_EMUTRAMP if (PARISC) -+ select PAX_EMUSIGRT if (PARISC) -+ select PAX_ETEXECRELOCS if (ALPHA || IA64 || PARISC) -+ select PAX_ELFRELOCS if (PAX_ETEXECRELOCS || (IA64 || PPC || X86)) -+ select PAX_REFCOUNT if (X86 || SPARC64) -+ select PAX_USERCOPY if ((X86 || PPC || SPARC || ARM) && (SLAB || SLUB || SLOB)) -+ help -+ If you say Y here, many of the features of grsecurity will be -+ enabled, which will protect you against many kinds of attacks -+ against your system. The heightened security comes at a cost -+ of an increased chance of incompatibilities with rare software -+ on your machine. Since this security level enables PaX, you should -+ view <http://pax.grsecurity.net> and read about the PaX -+ project. While you are there, download chpax and run it on -+ binaries that cause problems with PaX. Also remember that -+ since the /proc restrictions are enabled, you must run your -+ identd as gid 1001. This security level enables the following -+ features in addition to those listed in the low and medium -+ security levels: -+ -+ - Additional /proc restrictions -+ - Chmod restrictions in chroot -+ - No signals, ptrace, or viewing of processes outside of chroot -+ - Capability restrictions in chroot -+ - Deny fchdir out of chroot -+ - Priority restrictions in chroot -+ - Segmentation-based implementation of PaX -+ - Mprotect restrictions -+ - Removal of addresses from /proc/<pid>/[smaps|maps|stat] -+ - Kernel stack randomization -+ - Mount/unmount/remount logging -+ - Kernel symbol hiding -+ - Prevention of memory exhaustion-based exploits -+ - Hardening of module auto-loading -+ - Ptrace restrictions -+ - Restricted vm86 mode -+ - Restricted sysfs/debugfs -+ - Active kernel exploit response -+ -+config GRKERNSEC_CUSTOM -+ bool "Custom" -+ help -+ If you say Y here, you will be able to configure every grsecurity -+ option, which allows you to enable many more features that aren't -+ covered in the basic security levels. These additional features -+ include TPE, socket restrictions, and the sysctl system for -+ grsecurity. It is advised that you read through the help for -+ each option to determine its usefulness in your situation. -+ -+endchoice -+ -+menu "Address Space Protection" -+depends on GRKERNSEC -+ -+config GRKERNSEC_KMEM -+ bool "Deny writing to /dev/kmem, /dev/mem, and /dev/port" -+ 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 via mmap or otherwise to modify 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" -+ 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" -+ 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 "Remove addresses from /proc/<pid>/[smaps|maps|stat]" -+ default y if (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. -+ If you use PaX it is greatly recommended that you say Y here as it -+ closes up a hole that makes the full ASLR useless for suid -+ binaries. -+ -+config GRKERNSEC_BRUTE -+ bool "Deter exploit bruteforcing" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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 only -+ be accessible 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. -+ This option is equivalent to a chmod 0700 of the mount paths. -+ -+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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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' -+ 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" -+ 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" -+ 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_TPE -+ bool "Trusted Path Execution (TPE)" -+ 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" -+ 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" -+ 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" -+ 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" -+ 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 -+ -+endmenu -diff -urNp linux-3.0.4/grsecurity/Makefile linux-3.0.4/grsecurity/Makefile ---- linux-3.0.4/grsecurity/Makefile 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/grsecurity/Makefile 2011-09-14 23:29:56.000000000 -0400 -@@ -0,0 +1,35 @@ -+# 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 -+ -+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 700 . -+ @echo ' grsec: protected kernel image paths' -+endif -diff -urNp linux-3.0.4/include/acpi/acpi_bus.h linux-3.0.4/include/acpi/acpi_bus.h ---- linux-3.0.4/include/acpi/acpi_bus.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/acpi/acpi_bus.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/asm-generic/atomic-long.h linux-3.0.4/include/asm-generic/atomic-long.h ---- linux-3.0.4/include/asm-generic/atomic-long.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/atomic-long.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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(atom - 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(atomi - 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(atomi - 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(atomi - 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 - 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 - 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_retur - 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_unles - - 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(atom - 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(atomi - 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(atomi - 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(atomi - 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 - 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 - 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_retur - 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_unles - - #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 -urNp linux-3.0.4/include/asm-generic/cache.h linux-3.0.4/include/asm-generic/cache.h ---- linux-3.0.4/include/asm-generic/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/cache.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/asm-generic/int-l64.h linux-3.0.4/include/asm-generic/int-l64.h ---- linux-3.0.4/include/asm-generic/int-l64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/int-l64.h 2011-08-23 21:47:56.000000000 -0400 -@@ -46,6 +46,8 @@ typedef unsigned int u32; - typedef signed long s64; - typedef unsigned long u64; - -+typedef unsigned int intoverflow_t __attribute__ ((mode(TI))); -+ - #define S8_C(x) x - #define U8_C(x) x ## U - #define S16_C(x) x -diff -urNp linux-3.0.4/include/asm-generic/int-ll64.h linux-3.0.4/include/asm-generic/int-ll64.h ---- linux-3.0.4/include/asm-generic/int-ll64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/int-ll64.h 2011-08-23 21:47:56.000000000 -0400 -@@ -51,6 +51,8 @@ typedef unsigned int u32; - typedef signed long long s64; - typedef unsigned long long u64; - -+typedef unsigned long long intoverflow_t; -+ - #define S8_C(x) x - #define U8_C(x) x ## U - #define S16_C(x) x -diff -urNp linux-3.0.4/include/asm-generic/kmap_types.h linux-3.0.4/include/asm-generic/kmap_types.h ---- linux-3.0.4/include/asm-generic/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/kmap_types.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/asm-generic/pgtable.h linux-3.0.4/include/asm-generic/pgtable.h ---- linux-3.0.4/include/asm-generic/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/pgtable.h 2011-08-23 21:47:56.000000000 -0400 -@@ -443,6 +443,14 @@ static inline int pmd_write(pmd_t pmd) - #endif /* __HAVE_ARCH_PMD_WRITE */ - #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 /* !__ASSEMBLY__ */ - - #endif /* _ASM_GENERIC_PGTABLE_H */ -diff -urNp linux-3.0.4/include/asm-generic/pgtable-nopmd.h linux-3.0.4/include/asm-generic/pgtable-nopmd.h ---- linux-3.0.4/include/asm-generic/pgtable-nopmd.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/pgtable-nopmd.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/asm-generic/pgtable-nopud.h linux-3.0.4/include/asm-generic/pgtable-nopud.h ---- linux-3.0.4/include/asm-generic/pgtable-nopud.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/pgtable-nopud.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -diff -urNp linux-3.0.4/include/asm-generic/vmlinux.lds.h linux-3.0.4/include/asm-generic/vmlinux.lds.h ---- linux-3.0.4/include/asm-generic/vmlinux.lds.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/asm-generic/vmlinux.lds.h 2011-08-23 21:47:56.000000000 -0400 -@@ -217,6 +217,7 @@ - .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) = .; \ -@@ -723,17 +724,18 @@ - * 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 -urNp linux-3.0.4/include/drm/drm_crtc_helper.h linux-3.0.4/include/drm/drm_crtc_helper.h ---- linux-3.0.4/include/drm/drm_crtc_helper.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/drm/drm_crtc_helper.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/drm/drmP.h linux-3.0.4/include/drm/drmP.h ---- linux-3.0.4/include/drm/drmP.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/drm/drmP.h 2011-08-23 21:47:56.000000000 -0400 -@@ -73,6 +73,7 @@ - #include <linux/workqueue.h> - #include <linux/poll.h> - #include <asm/pgalloc.h> -+#include <asm/local.h> - #include "drm.h" - - #include <linux/idr.h> -@@ -1033,7 +1034,7 @@ 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 */ -@@ -1044,7 +1045,7 @@ 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 -urNp linux-3.0.4/include/drm/ttm/ttm_memory.h linux-3.0.4/include/drm/ttm/ttm_memory.h ---- linux-3.0.4/include/drm/ttm/ttm_memory.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/drm/ttm/ttm_memory.h 2011-08-23 21:47:56.000000000 -0400 -@@ -47,7 +47,7 @@ - - struct ttm_mem_shrink { - int (*do_shrink) (struct ttm_mem_shrink *); --}; -+} __no_const; - - /** - * struct ttm_mem_global - Global memory accounting structure. -diff -urNp linux-3.0.4/include/linux/a.out.h linux-3.0.4/include/linux/a.out.h ---- linux-3.0.4/include/linux/a.out.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/a.out.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/atmdev.h linux-3.0.4/include/linux/atmdev.h ---- linux-3.0.4/include/linux/atmdev.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/atmdev.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/binfmts.h linux-3.0.4/include/linux/binfmts.h ---- linux-3.0.4/include/linux/binfmts.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/binfmts.h 2011-08-23 21:47:56.000000000 -0400 -@@ -88,6 +88,7 @@ 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 -urNp linux-3.0.4/include/linux/blkdev.h linux-3.0.4/include/linux/blkdev.h ---- linux-3.0.4/include/linux/blkdev.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/blkdev.h 2011-08-26 19:49:56.000000000 -0400 -@@ -1308,7 +1308,7 @@ 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 -urNp linux-3.0.4/include/linux/blktrace_api.h linux-3.0.4/include/linux/blktrace_api.h ---- linux-3.0.4/include/linux/blktrace_api.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/blktrace_api.h 2011-08-23 21:47:56.000000000 -0400 -@@ -161,7 +161,7 @@ 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 -urNp linux-3.0.4/include/linux/byteorder/little_endian.h linux-3.0.4/include/linux/byteorder/little_endian.h ---- linux-3.0.4/include/linux/byteorder/little_endian.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/byteorder/little_endian.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/cache.h linux-3.0.4/include/linux/cache.h ---- linux-3.0.4/include/linux/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/cache.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/capability.h linux-3.0.4/include/linux/capability.h ---- linux-3.0.4/include/linux/capability.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/capability.h 2011-08-23 21:48:14.000000000 -0400 -@@ -547,6 +547,9 @@ extern bool capable(int cap); - extern bool ns_capable(struct user_namespace *ns, int cap); - extern bool task_ns_capable(struct task_struct *t, int cap); - extern bool nsown_capable(int cap); -+extern bool task_ns_capable_nolog(struct task_struct *t, int cap); -+extern bool ns_capable_nolog(struct user_namespace *ns, int cap); -+extern bool capable_nolog(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 -urNp linux-3.0.4/include/linux/cleancache.h linux-3.0.4/include/linux/cleancache.h ---- linux-3.0.4/include/linux/cleancache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/cleancache.h 2011-08-23 21:47:56.000000000 -0400 -@@ -31,7 +31,7 @@ struct cleancache_ops { - void (*flush_page)(int, struct cleancache_filekey, pgoff_t); - void (*flush_inode)(int, struct cleancache_filekey); - void (*flush_fs)(int); --}; -+} __no_const; - - extern struct cleancache_ops - cleancache_register_ops(struct cleancache_ops *ops); -diff -urNp linux-3.0.4/include/linux/compiler-gcc4.h linux-3.0.4/include/linux/compiler-gcc4.h ---- linux-3.0.4/include/linux/compiler-gcc4.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/compiler-gcc4.h 2011-08-26 19:49:56.000000000 -0400 -@@ -31,6 +31,12 @@ - - - #if __GNUC_MINOR__ >= 5 -+ -+#ifdef CONSTIFY_PLUGIN -+#define __no_const __attribute__((no_const)) -+#define __do_const __attribute__((do_const)) -+#endif -+ - /* - * Mark a position in code as unreachable. This can be used to - * suppress control flow warnings after asm blocks that transfer -@@ -46,6 +52,11 @@ - #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 -urNp linux-3.0.4/include/linux/compiler.h linux-3.0.4/include/linux/compiler.h ---- linux-3.0.4/include/linux/compiler.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/compiler.h 2011-08-26 19:49:56.000000000 -0400 -@@ -264,6 +264,14 @@ void ftrace_likely_update(struct ftrace_ - # define __attribute_const__ /* unimplemented */ - #endif - -+#ifndef __no_const -+# define __no_const -+#endif -+ -+#ifndef __do_const -+# define __do_const -+#endif -+ - /* - * Tell gcc if a function is cold. The compiler will assume any path - * directly leading to the call is unlikely. -@@ -273,6 +281,22 @@ void ftrace_likely_update(struct ftrace_ - #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))) -@@ -306,6 +330,7 @@ void ftrace_likely_update(struct ftrace_ - * 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 -urNp linux-3.0.4/include/linux/cpuset.h linux-3.0.4/include/linux/cpuset.h ---- linux-3.0.4/include/linux/cpuset.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/cpuset.h 2011-08-23 21:47:56.000000000 -0400 -@@ -118,7 +118,7 @@ static inline void put_mems_allowed(void - * nodemask. - */ - smp_mb(); -- --ACCESS_ONCE(current->mems_allowed_change_disable); -+ --ACCESS_ONCE_RW(current->mems_allowed_change_disable); - } - - static inline void set_mems_allowed(nodemask_t nodemask) -diff -urNp linux-3.0.4/include/linux/crypto.h linux-3.0.4/include/linux/crypto.h ---- linux-3.0.4/include/linux/crypto.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/crypto.h 2011-08-23 21:47:56.000000000 -0400 -@@ -361,7 +361,7 @@ 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); -@@ -382,13 +382,13 @@ 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 -urNp linux-3.0.4/include/linux/decompress/mm.h linux-3.0.4/include/linux/decompress/mm.h ---- linux-3.0.4/include/linux/decompress/mm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/decompress/mm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/dma-mapping.h linux-3.0.4/include/linux/dma-mapping.h ---- linux-3.0.4/include/linux/dma-mapping.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/dma-mapping.h 2011-08-26 19:49:56.000000000 -0400 -@@ -50,7 +50,7 @@ struct dma_map_ops { - int (*dma_supported)(struct device *dev, u64 mask); - int (*set_dma_mask)(struct device *dev, u64 mask); - int is_phys; --}; -+} __do_const; - - #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) - -diff -urNp linux-3.0.4/include/linux/efi.h linux-3.0.4/include/linux/efi.h ---- linux-3.0.4/include/linux/efi.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/efi.h 2011-08-23 21:47:56.000000000 -0400 -@@ -410,7 +410,7 @@ 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 -urNp linux-3.0.4/include/linux/elf.h linux-3.0.4/include/linux/elf.h ---- linux-3.0.4/include/linux/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/elf.h 2011-08-23 21:47:56.000000000 -0400 -@@ -49,6 +49,17 @@ 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 -@@ -106,6 +117,8 @@ 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 -@@ -252,6 +265,19 @@ 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; -@@ -344,6 +370,8 @@ 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' -@@ -422,6 +450,7 @@ 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 - -@@ -432,6 +461,7 @@ 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 -urNp linux-3.0.4/include/linux/firewire.h linux-3.0.4/include/linux/firewire.h ---- linux-3.0.4/include/linux/firewire.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/firewire.h 2011-08-23 21:47:56.000000000 -0400 -@@ -428,7 +428,7 @@ struct fw_iso_context { - union { - fw_iso_callback_t sc; - fw_iso_mc_callback_t mc; -- } callback; -+ } __no_const callback; - void *callback_data; - }; - -diff -urNp linux-3.0.4/include/linux/fscache-cache.h linux-3.0.4/include/linux/fscache-cache.h ---- linux-3.0.4/include/linux/fscache-cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/fscache-cache.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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_ini - { - 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 -urNp linux-3.0.4/include/linux/fs.h linux-3.0.4/include/linux/fs.h ---- linux-3.0.4/include/linux/fs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/fs.h 2011-08-26 19:49:56.000000000 -0400 -@@ -109,6 +109,11 @@ struct inodes_stat_t { - /* File was opened by fanotify and shouldn't generate fanotify events */ - #define FMODE_NONOTIFY ((__force fmode_t)0x1000000) - -+/* Hack for grsec so as not to require read permission simply to execute -+ * a binary -+ */ -+#define FMODE_GREXEC ((__force fmode_t)0x2000000) -+ - /* - * The below are the various read and write types that we support. Some of - * them include behavioral modifiers that send information down to the -@@ -1571,7 +1576,8 @@ 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; - - #define IPERM_FLAG_RCU 0x0001 - -diff -urNp linux-3.0.4/include/linux/fsnotify.h linux-3.0.4/include/linux/fsnotify.h ---- linux-3.0.4/include/linux/fsnotify.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/fsnotify.h 2011-08-24 18:10:29.000000000 -0400 -@@ -314,7 +314,7 @@ static inline void fsnotify_change(struc - */ - 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 -urNp linux-3.0.4/include/linux/fs_struct.h linux-3.0.4/include/linux/fs_struct.h ---- linux-3.0.4/include/linux/fs_struct.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/fs_struct.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/ftrace_event.h linux-3.0.4/include/linux/ftrace_event.h ---- linux-3.0.4/include/linux/ftrace_event.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/ftrace_event.h 2011-08-23 21:47:56.000000000 -0400 -@@ -96,7 +96,7 @@ 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; -@@ -247,7 +247,7 @@ extern int trace_define_field(struct ftr - 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 -urNp linux-3.0.4/include/linux/genhd.h linux-3.0.4/include/linux/genhd.h ---- linux-3.0.4/include/linux/genhd.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/genhd.h 2011-08-23 21:47:56.000000000 -0400 -@@ -184,7 +184,7 @@ 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 -urNp linux-3.0.4/include/linux/gracl.h linux-3.0.4/include/linux/gracl.h ---- linux-3.0.4/include/linux/gracl.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/gracl.h 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1,317 @@ -+#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 2.2.2" -+#define GRSECURITY_VERSION 0x2202 -+ -+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; -+ -+ 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 -urNp linux-3.0.4/include/linux/gralloc.h linux-3.0.4/include/linux/gralloc.h ---- linux-3.0.4/include/linux/gralloc.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/gralloc.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/grdefs.h linux-3.0.4/include/linux/grdefs.h ---- linux-3.0.4/include/linux/grdefs.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/grdefs.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/grinternal.h linux-3.0.4/include/linux/grinternal.h ---- linux-3.0.4/include/linux/grinternal.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/grinternal.h 2011-09-24 08:43:45.000000000 -0400 -@@ -0,0 +1,219 @@ -+#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_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_SYSLOG) }} -+ -+#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 -urNp linux-3.0.4/include/linux/grmsg.h linux-3.0.4/include/linux/grmsg.h ---- linux-3.0.4/include/linux/grmsg.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/grmsg.h 2011-09-14 09:16:54.000000000 -0400 -@@ -0,0 +1,108 @@ -+#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 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_FCHMOD_ACL_MSG "%s fchmod of %.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 garbaged 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_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by " -diff -urNp linux-3.0.4/include/linux/grsecurity.h linux-3.0.4/include/linux/grsecurity.h ---- linux-3.0.4/include/linux/grsecurity.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/grsecurity.h 2011-09-14 09:16:54.000000000 -0400 -@@ -0,0 +1,226 @@ -+#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_NOEXEC) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) -+#error "CONFIG_PAX_NOEXEC enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." -+#endif -+#if defined(CONFIG_PAX_ASLR) && (defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) -+#error "CONFIG_PAX_ASLR enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." -+#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); -+ -+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); -+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_fchmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, mode_t mode); -+__u32 gr_acl_handle_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, mode_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_share); -+__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, const int fmode); -+__u32 gr_acl_handle_creat(const struct dentry *dentry, -+ const struct dentry *p_dentry, -+ const struct vfsmount *p_mnt, const int fmode, -+ const int imode); -+void gr_handle_create(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__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); -+ -+#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); -+ -+extern int grsec_enable_dmesg; -+extern int grsec_disable_privio; -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+extern int grsec_enable_chroot_findtask; -+#endif -+#endif -+ -+#endif -diff -urNp linux-3.0.4/include/linux/grsock.h linux-3.0.4/include/linux/grsock.h ---- linux-3.0.4/include/linux/grsock.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/grsock.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/hid.h linux-3.0.4/include/linux/hid.h ---- linux-3.0.4/include/linux/hid.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/hid.h 2011-08-23 21:47:56.000000000 -0400 -@@ -675,7 +675,7 @@ 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 -urNp linux-3.0.4/include/linux/highmem.h linux-3.0.4/include/linux/highmem.h ---- linux-3.0.4/include/linux/highmem.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/highmem.h 2011-08-23 21:47:56.000000000 -0400 -@@ -185,6 +185,18 @@ static inline void clear_highpage(struct - kunmap_atomic(kaddr, KM_USER0); - } - -+static inline void sanitize_highpage(struct page *page) -+{ -+ void *kaddr; -+ unsigned long flags; -+ -+ local_irq_save(flags); -+ kaddr = kmap_atomic(page, KM_CLEARPAGE); -+ clear_page(kaddr); -+ kunmap_atomic(kaddr, KM_CLEARPAGE); -+ local_irq_restore(flags); -+} -+ - static inline void zero_user_segments(struct page *page, - unsigned start1, unsigned end1, - unsigned start2, unsigned end2) -diff -urNp linux-3.0.4/include/linux/i2c.h linux-3.0.4/include/linux/i2c.h ---- linux-3.0.4/include/linux/i2c.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/i2c.h 2011-08-23 21:47:56.000000000 -0400 -@@ -346,6 +346,7 @@ 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 -urNp linux-3.0.4/include/linux/i2o.h linux-3.0.4/include/linux/i2o.h ---- linux-3.0.4/include/linux/i2o.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/i2o.h 2011-08-23 21:47:56.000000000 -0400 -@@ -564,7 +564,7 @@ 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 -urNp linux-3.0.4/include/linux/init.h linux-3.0.4/include/linux/init.h ---- linux-3.0.4/include/linux/init.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/init.h 2011-08-23 21:47:56.000000000 -0400 -@@ -293,13 +293,13 @@ void __init parse_early_options(char *cm - - /* 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 -urNp linux-3.0.4/include/linux/init_task.h linux-3.0.4/include/linux/init_task.h ---- linux-3.0.4/include/linux/init_task.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/init_task.h 2011-08-23 21:47:56.000000000 -0400 -@@ -126,6 +126,12 @@ extern struct cred init_cred; - # define INIT_PERF_EVENTS(tsk) - #endif - -+#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) -@@ -164,6 +170,7 @@ extern struct cred init_cred; - RCU_INIT_POINTER(.cred, &init_cred), \ - .comm = "swapper", \ - .thread = INIT_THREAD, \ -+ INIT_TASK_THREAD_INFO \ - .fs = &init_fs, \ - .files = &init_files, \ - .signal = &init_signals, \ -diff -urNp linux-3.0.4/include/linux/intel-iommu.h linux-3.0.4/include/linux/intel-iommu.h ---- linux-3.0.4/include/linux/intel-iommu.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/intel-iommu.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/interrupt.h linux-3.0.4/include/linux/interrupt.h ---- linux-3.0.4/include/linux/interrupt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/interrupt.h 2011-08-23 21:47:56.000000000 -0400 -@@ -422,7 +422,7 @@ 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 -@@ -430,12 +430,12 @@ 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); - static inline void __raise_softirq_irqoff(unsigned int nr) - { -diff -urNp linux-3.0.4/include/linux/kallsyms.h linux-3.0.4/include/linux/kallsyms.h ---- linux-3.0.4/include/linux/kallsyms.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/kallsyms.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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(un - /* 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 void __check_printsym_format(const char *fmt, ...) -diff -urNp linux-3.0.4/include/linux/kgdb.h linux-3.0.4/include/linux/kgdb.h ---- linux-3.0.4/include/linux/kgdb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/kgdb.h 2011-08-26 19:49:56.000000000 -0400 -@@ -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; -@@ -251,7 +251,7 @@ 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. -@@ -276,7 +276,7 @@ struct kgdb_io { - void (*pre_exception) (void); - void (*post_exception) (void); - int is_console; --}; -+} __do_const; - - extern struct kgdb_arch arch_kgdb_ops; - -diff -urNp linux-3.0.4/include/linux/kmod.h linux-3.0.4/include/linux/kmod.h ---- linux-3.0.4/include/linux/kmod.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/kmod.h 2011-08-23 21:48:14.000000000 -0400 -@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysc - * usually useless though. */ - extern int __request_module(bool wait, const char *name, ...) \ - __attribute__((format(printf, 2, 3))); -+extern int ___request_module(bool wait, char *param_name, const char *name, ...) \ -+ __attribute__((format(printf, 3, 4))); - #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 -urNp linux-3.0.4/include/linux/kvm_host.h linux-3.0.4/include/linux/kvm_host.h ---- linux-3.0.4/include/linux/kvm_host.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/kvm_host.h 2011-08-23 21:47:56.000000000 -0400 -@@ -307,7 +307,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vc - 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); - -@@ -446,7 +446,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug( - 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 -urNp linux-3.0.4/include/linux/libata.h linux-3.0.4/include/linux/libata.h ---- linux-3.0.4/include/linux/libata.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/libata.h 2011-08-26 19:49:56.000000000 -0400 -@@ -899,7 +899,7 @@ struct ata_port_operations { - * fields must be pointers. - */ - const struct ata_port_operations *inherits; --}; -+} __do_const; - - struct ata_port_info { - unsigned long flags; -diff -urNp linux-3.0.4/include/linux/mca.h linux-3.0.4/include/linux/mca.h ---- linux-3.0.4/include/linux/mca.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mca.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/memory.h linux-3.0.4/include/linux/memory.h ---- linux-3.0.4/include/linux/memory.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/memory.h 2011-08-23 21:47:56.000000000 -0400 -@@ -144,7 +144,7 @@ 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 -urNp linux-3.0.4/include/linux/mfd/abx500.h linux-3.0.4/include/linux/mfd/abx500.h ---- linux-3.0.4/include/linux/mfd/abx500.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mfd/abx500.h 2011-08-23 21:47:56.000000000 -0400 -@@ -234,6 +234,7 @@ 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 -urNp linux-3.0.4/include/linux/mm.h linux-3.0.4/include/linux/mm.h ---- linux-3.0.4/include/linux/mm.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/include/linux/mm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -113,7 +113,14 @@ extern unsigned int kobjsize(const void - - #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 */ - -@@ -1009,34 +1016,6 @@ 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 unsigned long move_page_tables(struct vm_area_struct *vma, - unsigned long old_addr, struct vm_area_struct *new_vma, - unsigned long new_addr, unsigned long len); -@@ -1169,6 +1148,15 @@ struct shrinker { - extern void register_shrinker(struct shrinker *); - extern void unregister_shrinker(struct shrinker *); - -+#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, -@@ -1452,6 +1440,7 @@ out: - } - - extern int do_munmap(struct mm_struct *, unsigned long, size_t); -+extern int __do_munmap(struct mm_struct *, unsigned long, size_t); - - extern unsigned long do_brk(unsigned long, unsigned long); - -@@ -1510,6 +1499,10 @@ extern struct vm_area_struct * find_vma( - 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) -@@ -1526,15 +1519,6 @@ static inline unsigned long vma_pages(st - return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; - } - --#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); -@@ -1647,7 +1631,7 @@ extern int unpoison_memory(unsigned long - 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); -@@ -1661,5 +1645,11 @@ extern void copy_user_huge_page(struct p - unsigned int pages_per_huge_page); - #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */ - -+#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 -urNp linux-3.0.4/include/linux/mm_types.h linux-3.0.4/include/linux/mm_types.h ---- linux-3.0.4/include/linux/mm_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mm_types.h 2011-08-23 21:47:56.000000000 -0400 -@@ -184,6 +184,8 @@ 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 { -@@ -316,6 +318,24 @@ 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_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ 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 -urNp linux-3.0.4/include/linux/mmu_notifier.h linux-3.0.4/include/linux/mmu_notifier.h ---- linux-3.0.4/include/linux/mmu_notifier.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mmu_notifier.h 2011-08-23 21:47:56.000000000 -0400 -@@ -255,12 +255,12 @@ static inline void mmu_notifier_mm_destr - */ - #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 -urNp linux-3.0.4/include/linux/mmzone.h linux-3.0.4/include/linux/mmzone.h ---- linux-3.0.4/include/linux/mmzone.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mmzone.h 2011-08-23 21:47:56.000000000 -0400 -@@ -350,7 +350,7 @@ 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 -urNp linux-3.0.4/include/linux/mod_devicetable.h linux-3.0.4/include/linux/mod_devicetable.h ---- linux-3.0.4/include/linux/mod_devicetable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/mod_devicetable.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/module.h linux-3.0.4/include/linux/module.h ---- linux-3.0.4/include/linux/module.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/module.h 2011-08-23 21:47:56.000000000 -0400 -@@ -16,6 +16,7 @@ - #include <linux/kobject.h> - #include <linux/moduleparam.h> - #include <linux/tracepoint.h> -+#include <linux/fs.h> - - #include <linux/percpu.h> - #include <asm/module.h> -@@ -325,19 +326,16 @@ 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; -@@ -393,6 +391,10 @@ 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; -@@ -443,16 +445,46 @@ bool is_module_address(unsigned long add - 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 -urNp linux-3.0.4/include/linux/moduleloader.h linux-3.0.4/include/linux/moduleloader.h ---- linux-3.0.4/include/linux/moduleloader.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/moduleloader.h 2011-08-23 21:47:56.000000000 -0400 -@@ -20,9 +20,21 @@ unsigned int arch_mod_section_prepend(st - sections. Returns NULL on failure. */ - void *module_alloc(unsigned long size); - -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc_exec(unsigned long size); -+#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 -urNp linux-3.0.4/include/linux/moduleparam.h linux-3.0.4/include/linux/moduleparam.h ---- linux-3.0.4/include/linux/moduleparam.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/moduleparam.h 2011-08-23 21:47:56.000000000 -0400 -@@ -255,7 +255,7 @@ static inline void __kernel_param_unlock - * @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, \ -@@ -370,7 +370,7 @@ extern int param_get_invbool(char *buffe - * module_param_named() for why this might be necessary. - */ - #define module_param_array_named(name, array, type, nump, perm) \ -- 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 -urNp linux-3.0.4/include/linux/namei.h linux-3.0.4/include/linux/namei.h ---- linux-3.0.4/include/linux/namei.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/namei.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 { -@@ -91,12 +91,12 @@ 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 -urNp linux-3.0.4/include/linux/netdevice.h linux-3.0.4/include/linux/netdevice.h ---- linux-3.0.4/include/linux/netdevice.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/include/linux/netdevice.h 2011-08-23 21:47:56.000000000 -0400 -@@ -979,6 +979,7 @@ struct net_device_ops { - int (*ndo_set_features)(struct net_device *dev, - u32 features); - }; -+typedef struct net_device_ops __no_const net_device_ops_no_const; - - /* - * The DEVICE structure. -diff -urNp linux-3.0.4/include/linux/netfilter/xt_gradm.h linux-3.0.4/include/linux/netfilter/xt_gradm.h ---- linux-3.0.4/include/linux/netfilter/xt_gradm.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/include/linux/netfilter/xt_gradm.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/of_pdt.h linux-3.0.4/include/linux/of_pdt.h ---- linux-3.0.4/include/linux/of_pdt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/of_pdt.h 2011-08-30 06:20:11.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/oprofile.h linux-3.0.4/include/linux/oprofile.h ---- linux-3.0.4/include/linux/oprofile.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/oprofile.h 2011-08-23 21:47:56.000000000 -0400 -@@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super - 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 -urNp linux-3.0.4/include/linux/padata.h linux-3.0.4/include/linux/padata.h ---- linux-3.0.4/include/linux/padata.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/padata.h 2011-08-23 21:47:56.000000000 -0400 -@@ -129,7 +129,7 @@ struct parallel_data { - struct padata_instance *pinst; - struct padata_parallel_queue __percpu *pqueue; - struct padata_serial_queue __percpu *squeue; -- atomic_t seq_nr; -+ atomic_unchecked_t seq_nr; - atomic_t reorder_objects; - atomic_t refcnt; - unsigned int max_seq_nr; -diff -urNp linux-3.0.4/include/linux/perf_event.h linux-3.0.4/include/linux/perf_event.h ---- linux-3.0.4/include/linux/perf_event.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/perf_event.h 2011-08-23 21:47:56.000000000 -0400 -@@ -761,8 +761,8 @@ 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 -@@ -813,8 +813,8 @@ 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 -urNp linux-3.0.4/include/linux/pipe_fs_i.h linux-3.0.4/include/linux/pipe_fs_i.h ---- linux-3.0.4/include/linux/pipe_fs_i.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/pipe_fs_i.h 2011-08-23 21:47:56.000000000 -0400 -@@ -46,9 +46,9 @@ 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 -urNp linux-3.0.4/include/linux/pm_runtime.h linux-3.0.4/include/linux/pm_runtime.h ---- linux-3.0.4/include/linux/pm_runtime.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/pm_runtime.h 2011-08-23 21:47:56.000000000 -0400 -@@ -94,7 +94,7 @@ static inline bool pm_runtime_callbacks_ - - 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 -urNp linux-3.0.4/include/linux/poison.h linux-3.0.4/include/linux/poison.h ---- linux-3.0.4/include/linux/poison.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/poison.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/preempt.h linux-3.0.4/include/linux/preempt.h ---- linux-3.0.4/include/linux/preempt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/preempt.h 2011-08-23 21:47:56.000000000 -0400 -@@ -115,7 +115,7 @@ 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 -urNp linux-3.0.4/include/linux/proc_fs.h linux-3.0.4/include/linux/proc_fs.h ---- linux-3.0.4/include/linux/proc_fs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/proc_fs.h 2011-08-23 21:48:14.000000000 -0400 -@@ -155,6 +155,19 @@ static inline struct proc_dir_entry *pro - return proc_create_data(name, mode, parent, proc_fops, NULL); - } - -+static inline struct proc_dir_entry *proc_create_grsec(const char *name, mode_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, - mode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) -@@ -258,7 +271,7 @@ 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 -urNp linux-3.0.4/include/linux/ptrace.h linux-3.0.4/include/linux/ptrace.h ---- linux-3.0.4/include/linux/ptrace.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/ptrace.h 2011-08-23 21:48:14.000000000 -0400 -@@ -115,10 +115,10 @@ extern void __ptrace_unlink(struct task_ - extern void exit_ptrace(struct task_struct *tracer); - #define PTRACE_MODE_READ 1 - #define PTRACE_MODE_ATTACH 2 --/* Returns 0 on success, -errno on denial. */ --extern int __ptrace_may_access(struct task_struct *task, unsigned int mode); - /* Returns true on success, false on denial. */ - extern bool ptrace_may_access(struct task_struct *task, unsigned int mode); -+/* Returns true on success, false on denial. */ -+extern bool ptrace_may_access_log(struct task_struct *task, unsigned int mode); - - static inline int ptrace_reparented(struct task_struct *child) - { -diff -urNp linux-3.0.4/include/linux/random.h linux-3.0.4/include/linux/random.h ---- linux-3.0.4/include/linux/random.h 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/include/linux/random.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/reboot.h linux-3.0.4/include/linux/reboot.h ---- linux-3.0.4/include/linux/reboot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/reboot.h 2011-08-23 21:47:56.000000000 -0400 -@@ -47,9 +47,9 @@ extern int unregister_reboot_notifier(st - * 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; -@@ -60,9 +60,9 @@ extern void machine_crash_shutdown(struc - */ - - 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); -@@ -76,7 +76,7 @@ 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 -urNp linux-3.0.4/include/linux/reiserfs_fs.h linux-3.0.4/include/linux/reiserfs_fs.h ---- linux-3.0.4/include/linux/reiserfs_fs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/reiserfs_fs.h 2011-08-23 21:47:56.000000000 -0400 -@@ -1406,7 +1406,7 @@ static inline loff_t max_reiserfs_offset - #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 -urNp linux-3.0.4/include/linux/reiserfs_fs_sb.h linux-3.0.4/include/linux/reiserfs_fs_sb.h ---- linux-3.0.4/include/linux/reiserfs_fs_sb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/reiserfs_fs_sb.h 2011-08-23 21:47:56.000000000 -0400 -@@ -386,7 +386,7 @@ 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 */ -diff -urNp linux-3.0.4/include/linux/relay.h linux-3.0.4/include/linux/relay.h ---- linux-3.0.4/include/linux/relay.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/relay.h 2011-08-23 21:47:56.000000000 -0400 -@@ -159,7 +159,7 @@ 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 -urNp linux-3.0.4/include/linux/rfkill.h linux-3.0.4/include/linux/rfkill.h ---- linux-3.0.4/include/linux/rfkill.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/rfkill.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/rmap.h linux-3.0.4/include/linux/rmap.h ---- linux-3.0.4/include/linux/rmap.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/rmap.h 2011-08-23 21:47:56.000000000 -0400 -@@ -119,8 +119,8 @@ static inline void anon_vma_unlock(struc - 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_fork(struct vm_area_struct *, struct vm_area_struct *); -+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *); -+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *); - void __anon_vma_link(struct vm_area_struct *); - - static inline void anon_vma_merge(struct vm_area_struct *vma, -diff -urNp linux-3.0.4/include/linux/sched.h linux-3.0.4/include/linux/sched.h ---- linux-3.0.4/include/linux/sched.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/sched.h 2011-08-25 17:22:27.000000000 -0400 -@@ -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, -@@ -380,10 +381,13 @@ 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, -@@ -629,6 +633,17 @@ 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; -@@ -710,6 +725,11 @@ 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; -@@ -1340,8 +1360,8 @@ 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; -@@ -1357,13 +1377,6 @@ 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()) -@@ -1380,8 +1393,16 @@ 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 */ -@@ -1428,6 +1449,11 @@ 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; -@@ -1538,6 +1564,21 @@ struct task_struct { - unsigned long default_timer_slack_ns; - - struct list_head *scm_work_list; -+ -+#ifdef CONFIG_GRKERNSEC -+ /* grsecurity */ -+ 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; -@@ -1572,6 +1613,57 @@ 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(void *pc, void *sp); -+extern void pax_report_refcount_overflow(struct pt_regs *regs); -+extern NORET_TYPE void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type) ATTRIB_NORET; -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+extern void pax_track_stack(void); -+#else -+static inline void pax_track_stack(void) {} -+#endif -+ - /* Future-safe accessor for struct task_struct's cpus_allowed. */ - #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) - -@@ -1768,6 +1860,7 @@ extern void thread_group_times(struct ta - #define PF_DUMPCORE 0x00000200 /* dumped core */ - #define PF_SIGNALED 0x00000400 /* killed by a signal */ - #define PF_MEMALLOC 0x00000800 /* Allocating memory */ -+#define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */ - #define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */ - #define PF_FREEZING 0x00004000 /* freeze in progress. do not account to load */ - #define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */ -@@ -2056,7 +2149,9 @@ 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)]; - }; - -@@ -2089,6 +2184,7 @@ 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); - -@@ -2225,7 +2321,7 @@ extern void __cleanup_sighand(struct sig - extern void exit_itimers(struct signal_struct *); - extern void flush_itimer_signals(void); - --extern NORET_TYPE void do_group_exit(int); -+extern NORET_TYPE void do_group_exit(int) ATTRIB_NORET; - - extern void daemonize(const char *, ...); - extern int allow_signal(int); -@@ -2393,13 +2489,17 @@ static inline unsigned long *end_of_stac - - #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 -urNp linux-3.0.4/include/linux/screen_info.h linux-3.0.4/include/linux/screen_info.h ---- linux-3.0.4/include/linux/screen_info.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/screen_info.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/security.h linux-3.0.4/include/linux/security.h ---- linux-3.0.4/include/linux/security.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/security.h 2011-08-23 21:48:14.000000000 -0400 -@@ -36,6 +36,7 @@ - #include <linux/key.h> - #include <linux/xfrm.h> - #include <linux/slab.h> -+#include <linux/grsecurity.h> - #include <net/flow.h> - - /* Maximum number of letters for an LSM name string */ -diff -urNp linux-3.0.4/include/linux/seq_file.h linux-3.0.4/include/linux/seq_file.h ---- linux-3.0.4/include/linux/seq_file.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/seq_file.h 2011-08-23 21:47:56.000000000 -0400 -@@ -32,6 +32,7 @@ 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 -urNp linux-3.0.4/include/linux/shmem_fs.h linux-3.0.4/include/linux/shmem_fs.h ---- linux-3.0.4/include/linux/shmem_fs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/shmem_fs.h 2011-08-23 21:47:56.000000000 -0400 -@@ -10,7 +10,7 @@ - - #define SHMEM_NR_DIRECT 16 - --#define SHMEM_SYMLINK_INLINE_LEN (SHMEM_NR_DIRECT * sizeof(swp_entry_t)) -+#define SHMEM_SYMLINK_INLINE_LEN 64 - - struct shmem_inode_info { - spinlock_t lock; -diff -urNp linux-3.0.4/include/linux/shm.h linux-3.0.4/include/linux/shm.h ---- linux-3.0.4/include/linux/shm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/shm.h 2011-08-23 21:48:14.000000000 -0400 -@@ -95,6 +95,10 @@ struct shmid_kernel /* private to the ke - pid_t shm_cprid; - pid_t shm_lprid; - struct user_struct *mlock_user; -+#ifdef CONFIG_GRKERNSEC -+ time_t shm_createtime; -+ pid_t shm_lapid; -+#endif - }; - - /* shm_mode upper byte flags */ -diff -urNp linux-3.0.4/include/linux/skbuff.h linux-3.0.4/include/linux/skbuff.h ---- linux-3.0.4/include/linux/skbuff.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/skbuff.h 2011-08-23 21:47:56.000000000 -0400 -@@ -592,7 +592,7 @@ static inline struct skb_shared_hwtstamp - */ - 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; - } - - /** -@@ -605,7 +605,7 @@ static inline int skb_queue_empty(const - 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; - } - - /** -@@ -618,7 +618,7 @@ static inline bool skb_queue_is_last(con - 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; - } - - /** -@@ -1440,7 +1440,7 @@ static inline int pskb_network_may_pull( - * 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 -urNp linux-3.0.4/include/linux/slab_def.h linux-3.0.4/include/linux/slab_def.h ---- linux-3.0.4/include/linux/slab_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/slab_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -96,10 +96,10 @@ 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 -diff -urNp linux-3.0.4/include/linux/slab.h linux-3.0.4/include/linux/slab.h ---- linux-3.0.4/include/linux/slab.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/slab.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -@@ -141,6 +152,7 @@ void * __must_check krealloc(const void - 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 -@@ -333,4 +345,59 @@ static inline void *kzalloc_node(size_t - - void __init kmem_cache_init_late(void); - -+#define kmalloc(x, y) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "kmalloc size overflow\n")) \ -+ ___retval = NULL; \ -+ else \ -+ ___retval = kmalloc((size_t)___x, (y)); \ -+ ___retval; \ -+}) -+ -+#define kmalloc_node(x, y, z) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "kmalloc_node size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = kmalloc_node((size_t)___x, (y), (z));\ -+ ___retval; \ -+}) -+ -+#define kzalloc(x, y) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "kzalloc size overflow\n")) \ -+ ___retval = NULL; \ -+ else \ -+ ___retval = kzalloc((size_t)___x, (y)); \ -+ ___retval; \ -+}) -+ -+#define __krealloc(x, y, z) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___y = (intoverflow_t)y; \ -+ if (WARN(___y > ULONG_MAX, "__krealloc size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = __krealloc((x), (size_t)___y, (z)); \ -+ ___retval; \ -+}) -+ -+#define krealloc(x, y, z) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___y = (intoverflow_t)y; \ -+ if (WARN(___y > ULONG_MAX, "krealloc size overflow\n")) \ -+ ___retval = NULL; \ -+ else \ -+ ___retval = krealloc((x), (size_t)___y, (z)); \ -+ ___retval; \ -+}) -+ - #endif /* _LINUX_SLAB_H */ -diff -urNp linux-3.0.4/include/linux/slub_def.h linux-3.0.4/include/linux/slub_def.h ---- linux-3.0.4/include/linux/slub_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/slub_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -82,7 +82,7 @@ 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 */ -@@ -218,7 +218,7 @@ static __always_inline struct kmem_cache - } - - 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); - - static __always_inline void * - kmalloc_order(size_t size, gfp_t flags, unsigned int order) -diff -urNp linux-3.0.4/include/linux/sonet.h linux-3.0.4/include/linux/sonet.h ---- linux-3.0.4/include/linux/sonet.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/sonet.h 2011-08-23 21:47:56.000000000 -0400 -@@ -61,7 +61,7 @@ struct sonet_stats { - #include <asm/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 -urNp linux-3.0.4/include/linux/sunrpc/clnt.h linux-3.0.4/include/linux/sunrpc/clnt.h ---- linux-3.0.4/include/linux/sunrpc/clnt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/sunrpc/clnt.h 2011-08-23 21:47:56.000000000 -0400 -@@ -169,9 +169,9 @@ static inline unsigned short rpc_get_por - { - 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; - } -@@ -204,7 +204,7 @@ static inline bool __rpc_cmp_addr4(const - 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; -@@ -301,7 +301,7 @@ static inline u32 rpc_get_scope_id(const - 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 -urNp linux-3.0.4/include/linux/sunrpc/svc_rdma.h linux-3.0.4/include/linux/sunrpc/svc_rdma.h ---- linux-3.0.4/include/linux/sunrpc/svc_rdma.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/sunrpc/svc_rdma.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/sysctl.h linux-3.0.4/include/linux/sysctl.h ---- linux-3.0.4/include/linux/sysctl.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/sysctl.h 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -@@ -967,6 +971,8 @@ typedef int proc_handler (struct ctl_tab - - 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 -urNp linux-3.0.4/include/linux/tty_ldisc.h linux-3.0.4/include/linux/tty_ldisc.h ---- linux-3.0.4/include/linux/tty_ldisc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/tty_ldisc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -148,7 +148,7 @@ struct tty_ldisc_ops { - - struct module *owner; - -- int refcount; -+ atomic_t refcount; - }; - - struct tty_ldisc { -diff -urNp linux-3.0.4/include/linux/types.h linux-3.0.4/include/linux/types.h ---- linux-3.0.4/include/linux/types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/types.h 2011-08-23 21:47:56.000000000 -0400 -@@ -213,10 +213,26 @@ 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 -urNp linux-3.0.4/include/linux/uaccess.h linux-3.0.4/include/linux/uaccess.h ---- linux-3.0.4/include/linux/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/uaccess.h 2011-08-23 21:47:56.000000000 -0400 -@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_ - long ret; \ - mm_segment_t old_fs = get_fs(); \ - \ -- set_fs(KERNEL_DS); \ - pagefault_disable(); \ -+ set_fs(KERNEL_DS); \ - ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \ -- pagefault_enable(); \ - set_fs(old_fs); \ -+ pagefault_enable(); \ - ret; \ - }) - -diff -urNp linux-3.0.4/include/linux/unaligned/access_ok.h linux-3.0.4/include/linux/unaligned/access_ok.h ---- linux-3.0.4/include/linux/unaligned/access_ok.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/unaligned/access_ok.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/linux/vmalloc.h linux-3.0.4/include/linux/vmalloc.h ---- linux-3.0.4/include/linux/vmalloc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/vmalloc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -13,6 +13,11 @@ struct vm_area_struct; /* vma defining - #define VM_MAP 0x00000004 /* vmap()ed pages */ - #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ - #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC) -+#define VM_KERNEXEC 0x00000020 /* allocate from executable kernel memory range */ -+#endif -+ - /* bits [20..32] reserved for arch specific ioremap internals */ - - /* -@@ -155,4 +160,103 @@ pcpu_free_vm_areas(struct vm_struct **vm - # endif - #endif - -+#define vmalloc(x) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc size overflow\n")) \ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc((unsigned long)___x); \ -+ ___retval; \ -+}) -+ -+#define vzalloc(x) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vzalloc size overflow\n")) \ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vzalloc((unsigned long)___x); \ -+ ___retval; \ -+}) -+ -+#define __vmalloc(x, y, z) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "__vmalloc size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = __vmalloc((unsigned long)___x, (y), (z));\ -+ ___retval; \ -+}) -+ -+#define vmalloc_user(x) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc_user size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc_user((unsigned long)___x); \ -+ ___retval; \ -+}) -+ -+#define vmalloc_exec(x) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc_exec size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc_exec((unsigned long)___x); \ -+ ___retval; \ -+}) -+ -+#define vmalloc_node(x, y) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc_node size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc_node((unsigned long)___x, (y));\ -+ ___retval; \ -+}) -+ -+#define vzalloc_node(x, y) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vzalloc_node size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vzalloc_node((unsigned long)___x, (y));\ -+ ___retval; \ -+}) -+ -+#define vmalloc_32(x) \ -+({ \ -+ void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc_32 size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc_32((unsigned long)___x); \ -+ ___retval; \ -+}) -+ -+#define vmalloc_32_user(x) \ -+({ \ -+void *___retval; \ -+ intoverflow_t ___x = (intoverflow_t)x; \ -+ if (WARN(___x > ULONG_MAX, "vmalloc_32_user size overflow\n"))\ -+ ___retval = NULL; \ -+ else \ -+ ___retval = vmalloc_32_user((unsigned long)___x);\ -+ ___retval; \ -+}) -+ - #endif /* _LINUX_VMALLOC_H */ -diff -urNp linux-3.0.4/include/linux/vmstat.h linux-3.0.4/include/linux/vmstat.h ---- linux-3.0.4/include/linux/vmstat.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/linux/vmstat.h 2011-08-23 21:47:56.000000000 -0400 -@@ -87,18 +87,18 @@ static inline void vm_events_fold_cpu(in - /* - * 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_ - 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_st - 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 - - 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 - - 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 -urNp linux-3.0.4/include/media/saa7146_vv.h linux-3.0.4/include/media/saa7146_vv.h ---- linux-3.0.4/include/media/saa7146_vv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/media/saa7146_vv.h 2011-08-24 18:26:09.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/media/v4l2-ioctl.h linux-3.0.4/include/media/v4l2-ioctl.h ---- linux-3.0.4/include/media/v4l2-ioctl.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/media/v4l2-ioctl.h 2011-08-24 18:25:45.000000000 -0400 -@@ -272,6 +272,7 @@ 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 -urNp linux-3.0.4/include/net/caif/cfctrl.h linux-3.0.4/include/net/caif/cfctrl.h ---- linux-3.0.4/include/net/caif/cfctrl.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/caif/cfctrl.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/net/flow.h linux-3.0.4/include/net/flow.h ---- linux-3.0.4/include/net/flow.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/flow.h 2011-08-23 21:47:56.000000000 -0400 -@@ -188,6 +188,6 @@ extern struct flow_cache_object *flow_ca - u8 dir, flow_resolve_t resolver, void *ctx); - - extern void flow_cache_flush(void); --extern atomic_t flow_cache_genid; -+extern atomic_unchecked_t flow_cache_genid; - - #endif -diff -urNp linux-3.0.4/include/net/inetpeer.h linux-3.0.4/include/net/inetpeer.h ---- linux-3.0.4/include/net/inetpeer.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/inetpeer.h 2011-08-23 21:47:56.000000000 -0400 -@@ -43,8 +43,8 @@ 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; - u32 metrics[RTAX_MAX]; -@@ -108,7 +108,7 @@ static inline __u16 inet_getid(struct in - { - more++; - inet_peer_refcheck(p); -- return atomic_add_return(more, &p->ip_id_count) - more; -+ return atomic_add_return_unchecked(more, &p->ip_id_count) - more; - } - - #endif /* _NET_INETPEER_H */ -diff -urNp linux-3.0.4/include/net/ip_fib.h linux-3.0.4/include/net/ip_fib.h ---- linux-3.0.4/include/net/ip_fib.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/ip_fib.h 2011-08-23 21:47:56.000000000 -0400 -@@ -146,7 +146,7 @@ extern __be32 fib_info_update_nh_saddr(s - - #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 -urNp linux-3.0.4/include/net/ip_vs.h linux-3.0.4/include/net/ip_vs.h ---- linux-3.0.4/include/net/ip_vs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/ip_vs.h 2011-08-23 21:47:56.000000000 -0400 -@@ -509,7 +509,7 @@ 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, -@@ -647,7 +647,7 @@ 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 -urNp linux-3.0.4/include/net/irda/ircomm_core.h linux-3.0.4/include/net/irda/ircomm_core.h ---- linux-3.0.4/include/net/irda/ircomm_core.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/irda/ircomm_core.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/net/irda/ircomm_tty.h linux-3.0.4/include/net/irda/ircomm_tty.h ---- linux-3.0.4/include/net/irda/ircomm_tty.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/irda/ircomm_tty.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/net/iucv/af_iucv.h linux-3.0.4/include/net/iucv/af_iucv.h ---- linux-3.0.4/include/net/iucv/af_iucv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/iucv/af_iucv.h 2011-08-23 21:47:56.000000000 -0400 -@@ -87,7 +87,7 @@ 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 -urNp linux-3.0.4/include/net/lapb.h linux-3.0.4/include/net/lapb.h ---- linux-3.0.4/include/net/lapb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/lapb.h 2011-08-23 21:47:56.000000000 -0400 -@@ -95,7 +95,7 @@ struct lapb_cb { - struct sk_buff_head write_queue; - struct sk_buff_head ack_queue; - unsigned char window; -- struct lapb_register_struct callbacks; -+ struct lapb_register_struct *callbacks; - - /* FRMR control information */ - struct lapb_frame frmr_data; -diff -urNp linux-3.0.4/include/net/neighbour.h linux-3.0.4/include/net/neighbour.h ---- linux-3.0.4/include/net/neighbour.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/neighbour.h 2011-08-31 18:39:25.000000000 -0400 -@@ -124,7 +124,7 @@ struct neigh_ops { - int (*connected_output)(struct sk_buff*); - int (*hh_output)(struct sk_buff*); - int (*queue_xmit)(struct sk_buff*); --}; -+} __do_const; - - struct pneigh_entry { - struct pneigh_entry *next; -diff -urNp linux-3.0.4/include/net/netlink.h linux-3.0.4/include/net/netlink.h ---- linux-3.0.4/include/net/netlink.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/netlink.h 2011-08-23 21:47:56.000000000 -0400 -@@ -562,7 +562,7 @@ static inline void *nlmsg_get_pos(struct - 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 -urNp linux-3.0.4/include/net/netns/ipv4.h linux-3.0.4/include/net/netns/ipv4.h ---- linux-3.0.4/include/net/netns/ipv4.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/netns/ipv4.h 2011-08-23 21:47:56.000000000 -0400 -@@ -56,8 +56,8 @@ struct netns_ipv4 { - - unsigned int sysctl_ping_group_range[2]; - -- 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 -urNp linux-3.0.4/include/net/sctp/sctp.h linux-3.0.4/include/net/sctp/sctp.h ---- linux-3.0.4/include/net/sctp/sctp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/sctp/sctp.h 2011-08-23 21:47:56.000000000 -0400 -@@ -315,9 +315,9 @@ 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 -urNp linux-3.0.4/include/net/sock.h linux-3.0.4/include/net/sock.h ---- linux-3.0.4/include/net/sock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/sock.h 2011-08-23 21:47:56.000000000 -0400 -@@ -277,7 +277,7 @@ 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; -@@ -1390,7 +1390,7 @@ static inline void sk_nocaps_add(struct - } - - 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 -urNp linux-3.0.4/include/net/tcp.h linux-3.0.4/include/net/tcp.h ---- linux-3.0.4/include/net/tcp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/tcp.h 2011-08-23 21:47:56.000000000 -0400 -@@ -1374,8 +1374,8 @@ enum tcp_seq_states { - struct tcp_seq_afinfo { - char *name; - sa_family_t family; -- struct file_operations seq_fops; -- struct seq_operations seq_ops; -+ file_operations_no_const seq_fops; -+ seq_operations_no_const seq_ops; - }; - - struct tcp_iter_state { -diff -urNp linux-3.0.4/include/net/udp.h linux-3.0.4/include/net/udp.h ---- linux-3.0.4/include/net/udp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/udp.h 2011-08-23 21:47:56.000000000 -0400 -@@ -234,8 +234,8 @@ struct udp_seq_afinfo { - char *name; - sa_family_t family; - struct udp_table *udp_table; -- struct file_operations seq_fops; -- struct seq_operations seq_ops; -+ file_operations_no_const seq_fops; -+ seq_operations_no_const seq_ops; - }; - - struct udp_iter_state { -diff -urNp linux-3.0.4/include/net/xfrm.h linux-3.0.4/include/net/xfrm.h ---- linux-3.0.4/include/net/xfrm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/net/xfrm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/rdma/iw_cm.h linux-3.0.4/include/rdma/iw_cm.h ---- linux-3.0.4/include/rdma/iw_cm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/rdma/iw_cm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -120,7 +120,7 @@ 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 -urNp linux-3.0.4/include/scsi/libfc.h linux-3.0.4/include/scsi/libfc.h ---- linux-3.0.4/include/scsi/libfc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/scsi/libfc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -750,6 +750,7 @@ 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 -@@ -853,7 +854,7 @@ 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 -urNp linux-3.0.4/include/scsi/scsi_device.h linux-3.0.4/include/scsi/scsi_device.h ---- linux-3.0.4/include/scsi/scsi_device.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/scsi/scsi_device.h 2011-08-23 21:47:56.000000000 -0400 -@@ -161,9 +161,9 @@ 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 -urNp linux-3.0.4/include/scsi/scsi_transport_fc.h linux-3.0.4/include/scsi/scsi_transport_fc.h ---- linux-3.0.4/include/scsi/scsi_transport_fc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/scsi/scsi_transport_fc.h 2011-08-26 19:49:56.000000000 -0400 -@@ -711,7 +711,7 @@ struct fc_function_template { - unsigned long show_host_system_hostname:1; - - unsigned long disable_target_scan:1; --}; -+} __do_const; - - - /** -diff -urNp linux-3.0.4/include/sound/ak4xxx-adda.h linux-3.0.4/include/sound/ak4xxx-adda.h ---- linux-3.0.4/include/sound/ak4xxx-adda.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/ak4xxx-adda.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/sound/hwdep.h linux-3.0.4/include/sound/hwdep.h ---- linux-3.0.4/include/sound/hwdep.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/hwdep.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/sound/info.h linux-3.0.4/include/sound/info.h ---- linux-3.0.4/include/sound/info.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/info.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/sound/pcm.h linux-3.0.4/include/sound/pcm.h ---- linux-3.0.4/include/sound/pcm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/pcm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/sound/sb16_csp.h linux-3.0.4/include/sound/sb16_csp.h ---- linux-3.0.4/include/sound/sb16_csp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/sb16_csp.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/sound/soc.h linux-3.0.4/include/sound/soc.h ---- linux-3.0.4/include/sound/soc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/soc.h 2011-08-26 19:49:56.000000000 -0400 -@@ -636,7 +636,7 @@ struct snd_soc_platform_driver { - - /* platform stream ops */ - struct snd_pcm_ops *ops; --}; -+} __do_const; - - struct snd_soc_platform { - const char *name; -diff -urNp linux-3.0.4/include/sound/ymfpci.h linux-3.0.4/include/sound/ymfpci.h ---- linux-3.0.4/include/sound/ymfpci.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/sound/ymfpci.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/target/target_core_base.h linux-3.0.4/include/target/target_core_base.h ---- linux-3.0.4/include/target/target_core_base.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/target/target_core_base.h 2011-08-23 21:47:56.000000000 -0400 -@@ -364,7 +364,7 @@ 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_template { - /* Reservation effects all target ports */ -@@ -432,8 +432,8 @@ struct se_transport_task { - atomic_t t_task_cdbs_left; - atomic_t t_task_cdbs_ex_left; - atomic_t t_task_cdbs_timeout_left; -- atomic_t t_task_cdbs_sent; -- atomic_t t_transport_aborted; -+ atomic_unchecked_t t_task_cdbs_sent; -+ atomic_unchecked_t t_transport_aborted; - atomic_t t_transport_active; - atomic_t t_transport_complete; - atomic_t t_transport_queue_active; -@@ -774,7 +774,7 @@ struct se_device { - atomic_t active_cmds; - atomic_t simple_cmds; - atomic_t depth_left; -- atomic_t dev_ordered_id; -+ atomic_unchecked_t dev_ordered_id; - atomic_t dev_tur_active; - atomic_t execute_tasks; - atomic_t dev_status_thr_count; -diff -urNp linux-3.0.4/include/trace/events/irq.h linux-3.0.4/include/trace/events/irq.h ---- linux-3.0.4/include/trace/events/irq.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/trace/events/irq.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/include/video/udlfb.h linux-3.0.4/include/video/udlfb.h ---- linux-3.0.4/include/video/udlfb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/video/udlfb.h 2011-08-23 21:47:56.000000000 -0400 -@@ -51,10 +51,10 @@ struct dlfb_data { - int base8; - u32 pseudo_palette[256]; - /* 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 -urNp linux-3.0.4/include/video/uvesafb.h linux-3.0.4/include/video/uvesafb.h ---- linux-3.0.4/include/video/uvesafb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/include/video/uvesafb.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/init/do_mounts.c linux-3.0.4/init/do_mounts.c ---- linux-3.0.4/init/do_mounts.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/do_mounts.c 2011-08-23 21:47:56.000000000 -0400 -@@ -287,7 +287,7 @@ static void __init get_fs_names(char *pa - - static int __init do_mount_root(char *name, char *fs, int flags, void *data) - { -- int err = sys_mount(name, "/root", fs, flags, data); -+ int err = sys_mount((__force char __user *)name, (__force char __user *)"/root", (__force char __user *)fs, flags, (__force void __user *)data); - if (err) - return err; - -@@ -383,18 +383,18 @@ 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); -@@ -488,6 +488,6 @@ void __init prepare_namespace(void) - mount_root(); - out: - devtmpfs_mount("dev"); -- sys_mount(".", "/", NULL, MS_MOVE, NULL); -+ sys_mount((__force char __user *)".", (__force char __user *)"/", NULL, MS_MOVE, NULL); - sys_chroot((const char __user __force *)"."); - } -diff -urNp linux-3.0.4/init/do_mounts.h linux-3.0.4/init/do_mounts.h ---- linux-3.0.4/init/do_mounts.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/do_mounts.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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((__force char __user *)name); -+ return sys_mknod((__force char __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((__force char __user *)name, (__force struct stat64 __user *)&stat) != 0) - return 0; - if (!S_ISBLK(stat.st_mode)) - return 0; -diff -urNp linux-3.0.4/init/do_mounts_initrd.c linux-3.0.4/init/do_mounts_initrd.c ---- linux-3.0.4/init/do_mounts_initrd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/do_mounts_initrd.c 2011-08-23 21:47:56.000000000 -0400 -@@ -44,13 +44,13 @@ 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((__force const char __user *)"/old", 0700); -+ root_fd = sys_open((__force const char __user *)"/", 0, 0); -+ old_fd = sys_open((__force const char __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((__force const char __user *)"/root"); -+ sys_mount((__force char __user *)".", (__force char __user *)"/", NULL, MS_MOVE, NULL); -+ sys_chroot((__force const char __user *)"."); - - /* - * In case that a resume from disk is carried out by linuxrc or one of -@@ -67,15 +67,15 @@ static void __init handle_initrd(void) - - /* move initrd to rootfs' /old */ - sys_fchdir(old_fd); -- sys_mount("/", ".", NULL, MS_MOVE, NULL); -+ sys_mount((__force char __user *)"/", (__force char __user *)".", NULL, MS_MOVE, NULL); - /* switch root and cwd back to / of rootfs */ - sys_fchdir(root_fd); -- sys_chroot("."); -+ sys_chroot((__force const char __user *)"."); - sys_close(old_fd); - sys_close(root_fd); - - if (new_decode_dev(real_root_dev) == Root_RAM0) { -- sys_chdir("/old"); -+ sys_chdir((__force const char __user *)"/old"); - return; - } - -@@ -83,17 +83,17 @@ 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((__force char __user *)"/old", (__force char __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((__force const char __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((__force char __user *)"/old", MNT_DETACH); - printk(KERN_NOTICE "Trying to free ramdisk memory ... "); - if (fd < 0) { - error = fd; -@@ -116,11 +116,11 @@ 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((__force const char __user *)"/initrd.image"); - handle_initrd(); - return 1; - } - } -- sys_unlink("/initrd.image"); -+ sys_unlink((__force const char __user *)"/initrd.image"); - return 0; - } -diff -urNp linux-3.0.4/init/do_mounts_md.c linux-3.0.4/init/do_mounts_md.c ---- linux-3.0.4/init/do_mounts_md.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/do_mounts_md.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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((__force char __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((__force char __user *)name, 0, 0); - sys_ioctl(fd, BLKRRPART, 0); - } - sys_close(fd); -diff -urNp linux-3.0.4/init/initramfs.c linux-3.0.4/init/initramfs.c ---- linux-3.0.4/init/initramfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/initramfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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((__force char __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((__force char __user *)old, (__force char __user *)collected) < 0) ? -1 : 1; - } - return 0; - } -@@ -280,11 +280,11 @@ static void __init clean_path(char *path - { - struct stat st; - -- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) { -+ if (!sys_newlstat((__force char __user *)path, (__force struct stat __user *)&st) && (st.st_mode^mode) & S_IFMT) { - if (S_ISDIR(st.st_mode)) -- sys_rmdir(path); -+ sys_rmdir((__force char __user *)path); - else -- sys_unlink(path); -+ sys_unlink((__force char __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((__force char __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((__force char __user *)collected, mode); -+ sys_chown((__force char __user *)collected, uid, gid); -+ sys_chmod((__force char __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((__force char __user *)collected, mode, rdev); -+ sys_chown((__force char __user *)collected, uid, gid); -+ sys_chmod((__force char __user *)collected, mode); -+ do_utime((__force char __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, (__force char __user *)victim, body_len); - sys_close(wfd); -- do_utime(vcollected, mtime); -+ do_utime((__force char __user *)vcollected, mtime); - kfree(vcollected); - eat(body_len); - state = SkipIt; - return 0; - } else { -- sys_write(wfd, victim, count); -+ sys_write(wfd, (__force char __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((__force char __user *)collected + N_ALIGN(name_len), (__force char __user *)collected); -+ sys_lchown((__force char __user *)collected, uid, gid); -+ do_utime((__force char __user *)collected, mtime); - state = SkipIt; - next_state = Reset; - return 0; -diff -urNp linux-3.0.4/init/Kconfig linux-3.0.4/init/Kconfig ---- linux-3.0.4/init/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/Kconfig 2011-08-23 21:47:56.000000000 -0400 -@@ -1195,7 +1195,7 @@ 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 -urNp linux-3.0.4/init/main.c linux-3.0.4/init/main.c ---- linux-3.0.4/init/main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/init/main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -96,6 +96,8 @@ 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 -@@ -149,6 +151,49 @@ static int __init set_reset_devices(char - - __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_CPUS; 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; -@@ -667,6 +712,7 @@ int __init_or_module do_one_initcall(ini - { - int count = preempt_count(); - int ret; -+ const char *msg1 = "", *msg2 = ""; - - if (initcall_debug) - ret = do_one_initcall_debug(fn); -@@ -679,15 +725,15 @@ int __init_or_module do_one_initcall(ini - 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; -@@ -805,7 +851,7 @@ static int __init kernel_init(void * unu - 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((__force const char __user *) "/dev/console", O_RDWR, 0) < 0) - printk(KERN_WARNING "Warning: unable to open an initial console.\n"); - - (void) sys_dup(0); -@@ -818,11 +864,13 @@ static int __init kernel_init(void * unu - if (!ramdisk_execute_command) - ramdisk_execute_command = "/init"; - -- if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { -+ if (sys_access((__force const char __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 -urNp linux-3.0.4/ipc/mqueue.c linux-3.0.4/ipc/mqueue.c ---- linux-3.0.4/ipc/mqueue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/ipc/mqueue.c 2011-08-23 21:48:14.000000000 -0400 -@@ -154,6 +154,7 @@ static struct inode *mqueue_get_inode(st - 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 > -diff -urNp linux-3.0.4/ipc/msg.c linux-3.0.4/ipc/msg.c ---- linux-3.0.4/ipc/msg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/ipc/msg.c 2011-08-23 21:47:56.000000000 -0400 -@@ -309,18 +309,19 @@ static inline int msg_security(struct ke - 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 -urNp linux-3.0.4/ipc/sem.c linux-3.0.4/ipc/sem.c ---- linux-3.0.4/ipc/sem.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/ipc/sem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -318,10 +318,15 @@ static inline int sem_more_checks(struct - 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; -@@ -329,10 +334,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, - 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; -@@ -854,6 +855,8 @@ static int semctl_main(struct ipc_namesp - int nsems; - struct list_head tasks; - -+ pax_track_stack(); -+ - sma = sem_lock_check(ns, semid); - if (IS_ERR(sma)) - return PTR_ERR(sma); -@@ -1301,6 +1304,8 @@ SYSCALL_DEFINE4(semtimedop, int, semid, - struct ipc_namespace *ns; - struct list_head tasks; - -+ pax_track_stack(); -+ - ns = current->nsproxy->ipc_ns; - - if (nsops < 1 || semid < 0) -diff -urNp linux-3.0.4/ipc/shm.c linux-3.0.4/ipc/shm.c ---- linux-3.0.4/ipc/shm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/ipc/shm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_name - 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; -@@ -401,6 +409,14 @@ static int newseg(struct ipc_namespace * - 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; -@@ -451,18 +467,19 @@ static inline int shm_more_checks(struct - 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; -@@ -762,8 +779,6 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, - case SHM_LOCK: - case SHM_UNLOCK: - { -- struct file *uninitialized_var(shm_file); -- - lru_add_drain_all(); /* drain pagevecs to lru lists */ - - shp = shm_lock_check(ns, shmid); -@@ -896,9 +911,21 @@ long do_shmat(int shmid, char __user *sh - 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 -urNp linux-3.0.4/kernel/acct.c linux-3.0.4/kernel/acct.c ---- linux-3.0.4/kernel/acct.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/acct.c 2011-08-23 21:47:56.000000000 -0400 -@@ -570,7 +570,7 @@ static void do_acct_process(struct bsd_a - */ - 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, (__force char __user *)&ac, - sizeof(acct_t), &file->f_pos); - current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; - set_fs(fs); -diff -urNp linux-3.0.4/kernel/audit.c linux-3.0.4/kernel/audit.c ---- linux-3.0.4/kernel/audit.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/audit.c 2011-08-23 21:47:56.000000000 -0400 -@@ -112,7 +112,7 @@ 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; -@@ -234,7 +234,7 @@ 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); - -@@ -253,7 +253,7 @@ 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); -@@ -686,7 +686,7 @@ static int audit_receive_msg(struct sk_b - 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 -urNp linux-3.0.4/kernel/auditsc.c linux-3.0.4/kernel/auditsc.c ---- linux-3.0.4/kernel/auditsc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/auditsc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2118,7 +2118,7 @@ int auditsc_get_stamp(struct audit_conte - } - - /* 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 a task's audit_context loginuid -@@ -2131,7 +2131,7 @@ static atomic_t session_id = ATOMIC_INIT - */ - int audit_set_loginuid(struct task_struct *task, uid_t loginuid) - { -- unsigned int sessionid = atomic_inc_return(&session_id); -+ unsigned int sessionid = atomic_inc_return_unchecked(&session_id); - struct audit_context *context = task->audit_context; - - if (context && context->in_syscall) { -diff -urNp linux-3.0.4/kernel/capability.c linux-3.0.4/kernel/capability.c ---- linux-3.0.4/kernel/capability.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/capability.c 2011-08-23 21:48:14.000000000 -0400 -@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_ - * 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; -@@ -374,7 +377,7 @@ bool ns_capable(struct user_namespace *n - BUG(); - } - -- if (security_capable(ns, current_cred(), cap) == 0) { -+ if (security_capable(ns, current_cred(), cap) == 0 && gr_is_capable(cap)) { - current->flags |= PF_SUPERPRIV; - return true; - } -@@ -382,6 +385,27 @@ bool ns_capable(struct user_namespace *n - } - 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(ns, current_cred(), cap) == 0 && gr_is_capable_nolog(cap)) { -+ current->flags |= PF_SUPERPRIV; -+ return true; -+ } -+ return false; -+} -+EXPORT_SYMBOL(ns_capable_nolog); -+ -+bool capable_nolog(int cap) -+{ -+ return ns_capable_nolog(&init_user_ns, cap); -+} -+EXPORT_SYMBOL(capable_nolog); -+ - /** - * task_ns_capable - Determine whether current task has a superior - * capability targeted at a specific task's user namespace. -@@ -396,6 +420,12 @@ bool task_ns_capable(struct task_struct - } - EXPORT_SYMBOL(task_ns_capable); - -+bool task_ns_capable_nolog(struct task_struct *t, int cap) -+{ -+ return ns_capable_nolog(task_cred_xxx(t, user)->user_ns, cap); -+} -+EXPORT_SYMBOL(task_ns_capable_nolog); -+ - /** - * nsown_capable - Check superior capability to one's own user_ns - * @cap: The capability in question -diff -urNp linux-3.0.4/kernel/cgroup.c linux-3.0.4/kernel/cgroup.c ---- linux-3.0.4/kernel/cgroup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/cgroup.c 2011-08-23 21:48:14.000000000 -0400 -@@ -593,6 +593,8 @@ static struct css_set *find_css_set( - struct hlist_head *hhead; - struct cg_cgroup_link *link; - -+ pax_track_stack(); -+ - /* First see if we already have a cgroup group that matches - * the desired set */ - read_lock(&css_set_lock); -diff -urNp linux-3.0.4/kernel/compat.c linux-3.0.4/kernel/compat.c ---- linux-3.0.4/kernel/compat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/compat.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -diff -urNp linux-3.0.4/kernel/configs.c linux-3.0.4/kernel/configs.c ---- linux-3.0.4/kernel/configs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/configs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/kernel/cred.c linux-3.0.4/kernel/cred.c ---- linux-3.0.4/kernel/cred.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/cred.c 2011-08-25 17:23:03.000000000 -0400 -@@ -158,6 +158,8 @@ static void put_cred_rcu(struct rcu_head - */ - void __put_cred(struct cred *cred) - { -+ pax_track_stack(); -+ - kdebug("__put_cred(%p{%d,%d})", cred, - atomic_read(&cred->usage), - read_cred_subscribers(cred)); -@@ -182,6 +184,8 @@ void exit_creds(struct task_struct *tsk) - { - struct cred *cred; - -+ pax_track_stack(); -+ - kdebug("exit_creds(%u,%p,%p,{%d,%d})", tsk->pid, tsk->real_cred, tsk->cred, - atomic_read(&tsk->cred->usage), - read_cred_subscribers(tsk->cred)); -@@ -220,6 +224,8 @@ const struct cred *get_task_cred(struct - { - const struct cred *cred; - -+ pax_track_stack(); -+ - rcu_read_lock(); - - do { -@@ -239,6 +245,8 @@ struct cred *cred_alloc_blank(void) - { - struct cred *new; - -+ pax_track_stack(); -+ - new = kmem_cache_zalloc(cred_jar, GFP_KERNEL); - if (!new) - return NULL; -@@ -287,6 +295,8 @@ struct cred *prepare_creds(void) - const struct cred *old; - struct cred *new; - -+ pax_track_stack(); -+ - validate_process_creds(); - - new = kmem_cache_alloc(cred_jar, GFP_KERNEL); -@@ -333,6 +343,8 @@ struct cred *prepare_exec_creds(void) - struct thread_group_cred *tgcred = NULL; - struct cred *new; - -+ pax_track_stack(); -+ - #ifdef CONFIG_KEYS - tgcred = kmalloc(sizeof(*tgcred), GFP_KERNEL); - if (!tgcred) -@@ -385,6 +397,8 @@ int copy_creds(struct task_struct *p, un - struct cred *new; - int ret; - -+ pax_track_stack(); -+ - if ( - #ifdef CONFIG_KEYS - !p->cred->thread_keyring && -@@ -475,6 +489,8 @@ int commit_creds(struct cred *new) - struct task_struct *task = current; - const struct cred *old = task->real_cred; - -+ pax_track_stack(); -+ - kdebug("commit_creds(%p{%d,%d})", new, - atomic_read(&new->usage), - read_cred_subscribers(new)); -@@ -489,6 +505,8 @@ 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 || -@@ -508,10 +526,8 @@ int commit_creds(struct cred *new) - key_fsgid_changed(task); - - /* do it -- * - What if a process setreuid()'s and this brings the -- * new uid over his NPROC rlimit? We can check this now -- * cheaply with the new uid cache, so if it matters -- * we should be checking for it. -DaveM -+ * RLIMIT_NPROC limits on user->processes have already been checked -+ * in set_user(). - */ - alter_cred_subscribers(new, 2); - if (new->user != old->user) -@@ -551,6 +567,8 @@ EXPORT_SYMBOL(commit_creds); - */ - void abort_creds(struct cred *new) - { -+ pax_track_stack(); -+ - kdebug("abort_creds(%p{%d,%d})", new, - atomic_read(&new->usage), - read_cred_subscribers(new)); -@@ -574,6 +592,8 @@ const struct cred *override_creds(const - { - const struct cred *old = current->cred; - -+ pax_track_stack(); -+ - kdebug("override_creds(%p{%d,%d})", new, - atomic_read(&new->usage), - read_cred_subscribers(new)); -@@ -603,6 +623,8 @@ void revert_creds(const struct cred *old - { - const struct cred *override = current->cred; - -+ pax_track_stack(); -+ - kdebug("revert_creds(%p{%d,%d})", old, - atomic_read(&old->usage), - read_cred_subscribers(old)); -@@ -649,6 +671,8 @@ struct cred *prepare_kernel_cred(struct - const struct cred *old; - struct cred *new; - -+ pax_track_stack(); -+ - new = kmem_cache_alloc(cred_jar, GFP_KERNEL); - if (!new) - return NULL; -@@ -703,6 +727,8 @@ EXPORT_SYMBOL(prepare_kernel_cred); - */ - int set_security_override(struct cred *new, u32 secid) - { -+ pax_track_stack(); -+ - return security_kernel_act_as(new, secid); - } - EXPORT_SYMBOL(set_security_override); -@@ -722,6 +748,8 @@ int set_security_override_from_ctx(struc - u32 secid; - int ret; - -+ pax_track_stack(); -+ - ret = security_secctx_to_secid(secctx, strlen(secctx), &secid); - if (ret < 0) - return ret; -diff -urNp linux-3.0.4/kernel/debug/debug_core.c linux-3.0.4/kernel/debug/debug_core.c ---- linux-3.0.4/kernel/debug/debug_core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/debug/debug_core.c 2011-08-23 21:47:56.000000000 -0400 -@@ -119,7 +119,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_loc - */ - 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; -@@ -129,7 +129,7 @@ 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 -@@ -542,7 +542,7 @@ 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); -@@ -636,8 +636,8 @@ 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 -@@ -834,18 +834,18 @@ static void kgdb_unregister_callbacks(vo - 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 -urNp linux-3.0.4/kernel/debug/kdb/kdb_main.c linux-3.0.4/kernel/debug/kdb/kdb_main.c ---- linux-3.0.4/kernel/debug/kdb/kdb_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/debug/kdb/kdb_main.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1980,7 +1980,7 @@ static int kdb_lsmod(int argc, const cha - 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("%4d ", module_refcount(mod)); - #endif -@@ -1990,7 +1990,7 @@ static int kdb_lsmod(int argc, const cha - 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 -urNp linux-3.0.4/kernel/events/core.c linux-3.0.4/kernel/events/core.c ---- linux-3.0.4/kernel/events/core.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/kernel/events/core.c 2011-09-14 09:08:05.000000000 -0400 -@@ -170,7 +170,7 @@ int perf_proc_update_handler(struct ctl_ - 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); -@@ -2488,7 +2488,7 @@ 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) -@@ -3023,9 +3023,9 @@ u64 perf_event_read_value(struct perf_ev - 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); -@@ -3388,10 +3388,10 @@ void perf_event_update_userpage(struct p - userpg->offset -= local64_read(&event->hw.prev_count); - - userpg->time_enabled = event->total_time_enabled + -- atomic64_read(&event->child_total_time_enabled); -+ atomic64_read_unchecked(&event->child_total_time_enabled); - - userpg->time_running = event->total_time_running + -- atomic64_read(&event->child_total_time_running); -+ atomic64_read_unchecked(&event->child_total_time_running); - - barrier(); - ++userpg->lock; -@@ -4188,11 +4188,11 @@ static void perf_output_read_one(struct - 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); -@@ -4833,12 +4833,12 @@ static void perf_event_mmap_event(struct - * 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; -@@ -6190,7 +6190,7 @@ perf_event_alloc(struct perf_event_attr - 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; - -@@ -6713,10 +6713,10 @@ static void sync_child_event(struct perf - /* - * 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 -urNp linux-3.0.4/kernel/exit.c linux-3.0.4/kernel/exit.c ---- linux-3.0.4/kernel/exit.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/exit.c 2011-08-23 21:48:14.000000000 -0400 -@@ -57,6 +57,10 @@ - #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) -@@ -169,6 +173,10 @@ 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 -+ - tracehook_prepare_release_task(p); - /* 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 */ -@@ -338,11 +346,22 @@ static void reparent_to_kthreadd(void) - { - write_lock_irq(&tasklist_lock); - -+#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 -+ - ptrace_unlink(current); - /* Reparent to init */ - current->real_parent = current->parent = kthreadd_task; - list_move_tail(&current->sibling, &current->real_parent->children); - -+ gr_set_kernel_label(current); -+ - /* Set the exit signal to SIGCHLD so we signal init on exit */ - current->exit_signal = SIGCHLD; - -@@ -394,7 +413,7 @@ 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; -@@ -430,6 +449,17 @@ 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 -@@ -904,15 +934,8 @@ NORET_TYPE void do_exit(long code) - struct task_struct *tsk = current; - int group_dead; - -- profile_task_exit(tsk); -- -- WARN_ON(atomic_read(&tsk->fs_excl)); -- WARN_ON(blk_needs_flush_plug(tsk)); -- - if (unlikely(in_interrupt())) - panic("Aiee, killing interrupt handler!"); -- if (unlikely(!tsk->pid)) -- panic("Attempted to kill the idle task!"); - - /* - * If do_exit is called because this processes oopsed, it's possible -@@ -923,6 +946,14 @@ NORET_TYPE void do_exit(long code) - */ - set_fs(USER_DS); - -+ profile_task_exit(tsk); -+ -+ WARN_ON(atomic_read(&tsk->fs_excl)); -+ WARN_ON(blk_needs_flush_plug(tsk)); -+ -+ if (unlikely(!tsk->pid)) -+ panic("Attempted to kill the idle task!"); -+ - tracehook_report_exit(&code); - - validate_creds_for_do_exit(tsk); -@@ -983,6 +1014,9 @@ NORET_TYPE 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) -diff -urNp linux-3.0.4/kernel/fork.c linux-3.0.4/kernel/fork.c ---- linux-3.0.4/kernel/fork.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/fork.c 2011-08-25 17:23:36.000000000 -0400 -@@ -286,7 +286,7 @@ static struct task_struct *dup_task_stru - *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 - - /* One for us, one for whoever does the "release_task()" (usually parent) */ -@@ -308,13 +308,77 @@ out: - } - - #ifdef CONFIG_MMU -+static struct vm_area_struct *dup_vma(struct mm_struct *mm, 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 int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; -+ if (security_vm_enough_memory(len)) -+ 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); -@@ -326,8 +390,8 @@ static int dup_mmap(struct mm_struct *mm - 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; -@@ -343,8 +407,6 @@ static int dup_mmap(struct mm_struct *mm - - 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; -@@ -352,55 +414,13 @@ static int dup_mmap(struct mm_struct *mm - -pages); - continue; - } -- charge = 0; -- if (mpnt->vm_flags & VM_ACCOUNT) { -- unsigned int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; -- if (security_vm_enough_memory(len)) -- goto fail_nomem; -- charge = len; -- } -- 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); -+ tmp = dup_vma(mm, mpnt); -+ if (!tmp) { -+ retval = -ENOMEM; -+ goto out; - } - - /* -- * 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. - */ - *pprev = tmp; -@@ -421,6 +441,31 @@ static int dup_mmap(struct mm_struct *mm - 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; -@@ -429,14 +474,6 @@ 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) -@@ -836,13 +873,14 @@ static int copy_fs(unsigned long clone_f - 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; - } - -@@ -1104,12 +1142,16 @@ static struct task_struct *copy_process( - 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) && -- p->real_cred->user != INIT_USER) -+ if (p->real_cred->user != INIT_USER && -+ !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE)) - goto bad_fork_free; - } -+ current->flags &= ~PF_NPROC_EXCEEDED; - - retval = copy_creds(p, clone_flags); - if (retval < 0) -@@ -1250,6 +1292,8 @@ static struct task_struct *copy_process( - 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()? -@@ -1414,6 +1458,8 @@ bad_fork_cleanup_count: - bad_fork_free: - free_task(p); - fork_out: -+ gr_log_forkfail(retval); -+ - return ERR_PTR(retval); - } - -@@ -1502,6 +1548,8 @@ 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); -@@ -1610,7 +1658,7 @@ static int unshare_fs(unsigned long unsh - 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); -@@ -1697,7 +1745,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, - 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 -urNp linux-3.0.4/kernel/futex.c linux-3.0.4/kernel/futex.c ---- linux-3.0.4/kernel/futex.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/kernel/futex.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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/module.h> - #include <linux/magic.h> -@@ -238,6 +239,11 @@ get_futex_key(u32 __user *uaddr, int fsh - 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. - */ -@@ -1863,6 +1869,8 @@ static int futex_wait(u32 __user *uaddr, - struct futex_q q = futex_q_init; - int ret; - -+ pax_track_stack(); -+ - if (!bitset) - return -EINVAL; - q.bitset = bitset; -@@ -2259,6 +2267,8 @@ static int futex_wait_requeue_pi(u32 __u - struct futex_q q = futex_q_init; - int res, ret; - -+ pax_track_stack(); -+ - if (!bitset) - return -EINVAL; - -@@ -2431,7 +2441,9 @@ SYSCALL_DEFINE3(get_robust_list, int, pi - { - struct robust_list_head __user *head; - unsigned long ret; -+#ifndef CONFIG_GRKERNSEC_PROC_MEMMAP - const struct cred *cred = current_cred(), *pcred; -+#endif - - if (!futex_cmpxchg_enabled) - return -ENOSYS; -@@ -2447,6 +2459,10 @@ SYSCALL_DEFINE3(get_robust_list, int, pi - if (!p) - goto err_unlock; - ret = -EPERM; -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (!ptrace_may_access(p, PTRACE_MODE_READ)) -+ goto err_unlock; -+#else - pcred = __task_cred(p); - /* If victim is in different user_ns, then uids are not - comparable, so we must have CAP_SYS_PTRACE */ -@@ -2461,6 +2477,7 @@ SYSCALL_DEFINE3(get_robust_list, int, pi - !ns_capable(pcred->user->user_ns, CAP_SYS_PTRACE)) - goto err_unlock; - ok: -+#endif - head = p->robust_list; - rcu_read_unlock(); - } -@@ -2712,6 +2729,7 @@ 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 -@@ -2723,8 +2741,11 @@ 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, &futex_queues[i].lock); -diff -urNp linux-3.0.4/kernel/futex_compat.c linux-3.0.4/kernel/futex_compat.c ---- linux-3.0.4/kernel/futex_compat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/futex_compat.c 2011-08-23 21:48:14.000000000 -0400 -@@ -10,6 +10,7 @@ - #include <linux/compat.h> - #include <linux/nsproxy.h> - #include <linux/futex.h> -+#include <linux/ptrace.h> - - #include <asm/uaccess.h> - -@@ -136,7 +137,10 @@ compat_sys_get_robust_list(int pid, comp - { - struct compat_robust_list_head __user *head; - unsigned long ret; -- const struct cred *cred = current_cred(), *pcred; -+#ifndef CONFIG_GRKERNSEC_PROC_MEMMAP -+ const struct cred *cred = current_cred(); -+ const struct cred *pcred; -+#endif - - if (!futex_cmpxchg_enabled) - return -ENOSYS; -@@ -152,6 +156,10 @@ compat_sys_get_robust_list(int pid, comp - if (!p) - goto err_unlock; - ret = -EPERM; -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (!ptrace_may_access(p, PTRACE_MODE_READ)) -+ goto err_unlock; -+#else - pcred = __task_cred(p); - /* If victim is in different user_ns, then uids are not - comparable, so we must have CAP_SYS_PTRACE */ -@@ -166,6 +174,7 @@ compat_sys_get_robust_list(int pid, comp - !ns_capable(pcred->user->user_ns, CAP_SYS_PTRACE)) - goto err_unlock; - ok: -+#endif - head = p->compat_robust_list; - rcu_read_unlock(); - } -diff -urNp linux-3.0.4/kernel/gcov/base.c linux-3.0.4/kernel/gcov/base.c ---- linux-3.0.4/kernel/gcov/base.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/gcov/base.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 n - 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 -urNp linux-3.0.4/kernel/hrtimer.c linux-3.0.4/kernel/hrtimer.c ---- linux-3.0.4/kernel/hrtimer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/hrtimer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1391,7 +1391,7 @@ 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 -urNp linux-3.0.4/kernel/jump_label.c linux-3.0.4/kernel/jump_label.c ---- linux-3.0.4/kernel/jump_label.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/jump_label.c 2011-08-23 21:47:56.000000000 -0400 -@@ -55,7 +55,9 @@ jump_label_sort_entries(struct jump_entr - - 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 jump_label_key *key, int enable); -@@ -297,10 +299,12 @@ static void jump_label_invalidate_module - 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 -urNp linux-3.0.4/kernel/kallsyms.c linux-3.0.4/kernel/kallsyms.c ---- linux-3.0.4/kernel/kallsyms.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/kallsyms.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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_mark - - 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(unsigne - - 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(st - - 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, vo - { - 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 *i - 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 -urNp linux-3.0.4/kernel/kmod.c linux-3.0.4/kernel/kmod.c ---- linux-3.0.4/kernel/kmod.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/kmod.c 2011-08-23 21:48:14.000000000 -0400 -@@ -73,13 +73,12 @@ char modprobe_path[KMOD_PATH_LEN] = "/sb - * 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; -- char *argv[] = { modprobe_path, "-q", "--", module_name, NULL }; -+ char *argv[] = { modprobe_path, "-q", "--", module_name, module_param, NULL }; - static char *envp[] = { "HOME=/", - "TERM=linux", - "PATH=/sbin:/usr/sbin:/bin:/usr/bin", -@@ -88,9 +87,7 @@ int __request_module(bool wait, const ch - #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; - -@@ -98,6 +95,20 @@ int __request_module(bool wait, const ch - 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 -@@ -131,6 +142,47 @@ int __request_module(bool wait, const ch - 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 */ - -diff -urNp linux-3.0.4/kernel/kprobes.c linux-3.0.4/kernel/kprobes.c ---- linux-3.0.4/kernel/kprobes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/kprobes.c 2011-08-23 21:47:56.000000000 -0400 -@@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_ - * 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(st - */ - 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; -@@ -1936,7 +1936,7 @@ 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; -@@ -2062,7 +2062,7 @@ static int __kprobes show_kprobe_addr(st - 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 -urNp linux-3.0.4/kernel/lockdep.c linux-3.0.4/kernel/lockdep.c ---- linux-3.0.4/kernel/lockdep.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/lockdep.c 2011-08-23 21:47:56.000000000 -0400 -@@ -583,6 +583,10 @@ 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? - */ -@@ -718,6 +722,7 @@ register_lock_class(struct lockdep_map * - 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(); -@@ -2936,7 +2941,7 @@ static int __lock_acquire(struct lockdep - 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 -urNp linux-3.0.4/kernel/lockdep_proc.c linux-3.0.4/kernel/lockdep_proc.c ---- linux-3.0.4/kernel/lockdep_proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/lockdep_proc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -39,7 +39,7 @@ static void l_stop(struct seq_file *m, 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 -urNp linux-3.0.4/kernel/module.c linux-3.0.4/kernel/module.c ---- linux-3.0.4/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/module.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -119,7 +120,8 @@ static BLOCKING_NOTIFIER_HEAD(module_not - - /* 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) - { -@@ -284,7 +286,7 @@ bool each_symbol_section(bool (*fn)(cons - 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, -@@ -306,7 +308,7 @@ bool each_symbol_section(bool (*fn)(cons - #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; -@@ -438,7 +440,7 @@ static inline void __percpu *mod_percpu( - 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; -@@ -1166,7 +1168,7 @@ 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; -@@ -1632,21 +1634,21 @@ 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); - } - -@@ -1657,14 +1659,14 @@ 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); - } - } -@@ -1678,14 +1680,14 @@ 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); - } - } -@@ -1722,16 +1724,19 @@ static void free_module(struct module *m - - /* 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); -@@ -1800,10 +1805,31 @@ static int simplify_symbols(struct modul - unsigned int i; - 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 -@@ -1824,7 +1850,9 @@ static int simplify_symbols(struct modul - 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; - } - -@@ -1843,11 +1871,20 @@ static int simplify_symbols(struct modul - 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; - } - -@@ -1931,22 +1968,12 @@ static void layout_sections(struct modul - || 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); - DEBUGP("\t%s\n", name); - } -- 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; -- } - } - - DEBUGP("Init section allocation order:\n"); -@@ -1960,23 +1987,13 @@ static void layout_sections(struct modul - || 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; - DEBUGP("\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; -- } - } - } - -@@ -2141,7 +2158,7 @@ static void layout_symtab(struct module - - /* 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; - DEBUGP("\t%s\n", info->secstrings + symsect->sh_name); - -@@ -2158,19 +2175,19 @@ static void layout_symtab(struct module - } - - /* Append room for core symbols at end of core part. */ -- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); -- mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym); -+ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1); -+ mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym); - - /* 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; - DEBUGP("\t%s\n", info->secstrings + strsect->sh_name); - - /* Append room for core symbols' strings at end of core part. */ -- info->stroffs = mod->core_size; -+ info->stroffs = mod->core_size_rx; - __set_bit(0, info->strmap); -- mod->core_size += bitmap_weight(info->strmap, strsect->sh_size); -+ mod->core_size_rx += bitmap_weight(info->strmap, strsect->sh_size); - } - - static void add_kallsyms(struct module *mod, const struct load_info *info) -@@ -2186,11 +2203,13 @@ static void add_kallsyms(struct module * - /* 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_symtab = dst = mod->module_core_rx + info->symoffs; - src = mod->symtab; - *dst = *src; - for (ndst = i = 1; i < mod->num_symtab; ++i, ++src) { -@@ -2203,10 +2222,12 @@ static void add_kallsyms(struct module * - } - mod->core_num_syms = ndst; - -- mod->core_strtab = s = mod->module_core + info->stroffs; -+ mod->core_strtab = s = mod->module_core_rx + info->stroffs; - for (*s = 0, i = 1; i < info->sechdrs[info->index.str].sh_size; ++i) - if (test_bit(i, info->strmap)) - *++s = mod->strtab[i]; -+ -+ pax_close_kernel(); - } - #else - static inline void layout_symtab(struct module *mod, struct load_info *info) -@@ -2235,17 +2256,33 @@ static void dynamic_debug_remove(struct - ddebug_remove_module(debug->modname); - } - --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; -@@ -2538,7 +2575,7 @@ static int move_module(struct module *mo - 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 -@@ -2548,23 +2585,50 @@ static int move_module(struct module *mo - 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 */ - DEBUGP("final section addresses:\n"); -@@ -2575,16 +2639,45 @@ static int move_module(struct module *mo - 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; - DEBUGP("\t0x%lx %s\n", - shdr->sh_addr, info->secstrings + shdr->sh_name); - } -@@ -2635,12 +2728,12 @@ static void flush_module_icache(const st - * 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); - } -@@ -2712,8 +2805,10 @@ static void module_deallocate(struct mod - { - kfree(info->strmap); - 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); - } - - static int post_relocation(struct module *mod, const struct load_info *info) -@@ -2770,9 +2865,38 @@ static struct module *load_module(void _ - 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) -@@ -2788,13 +2912,6 @@ static struct module *load_module(void _ - - 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; - -@@ -2854,11 +2971,10 @@ static struct module *load_module(void _ - 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: -@@ -2899,16 +3015,16 @@ SYSCALL_DEFINE3(init_module, void __user - 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 */ -@@ -2954,11 +3070,12 @@ SYSCALL_DEFINE3(init_module, void __user - 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; -@@ -2989,10 +3106,16 @@ static const char *get_ksymbol(struct mo - 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). */ -@@ -3238,7 +3361,7 @@ static int m_show(struct seq_file *m, vo - 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. */ -@@ -3247,7 +3370,7 @@ static int m_show(struct seq_file *m, vo - 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) -@@ -3283,7 +3406,17 @@ static const struct file_operations proc - - 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); -@@ -3342,12 +3475,12 @@ struct module *__module_address(unsigned - { - 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; - } -@@ -3381,11 +3514,20 @@ bool is_module_text_address(unsigned lon - */ - 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 -urNp linux-3.0.4/kernel/mutex.c linux-3.0.4/kernel/mutex.c ---- linux-3.0.4/kernel/mutex.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/mutex.c 2011-08-23 21:47:56.000000000 -0400 -@@ -198,7 +198,7 @@ __mutex_lock_common(struct mutex *lock, - 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, - * 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); - -@@ -249,7 +248,7 @@ __mutex_lock_common(struct mutex *lock, - 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 -urNp linux-3.0.4/kernel/mutex-debug.c linux-3.0.4/kernel/mutex-debug.c ---- linux-3.0.4/kernel/mutex-debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/mutex-debug.c 2011-08-23 21:47:56.000000000 -0400 -@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mute - } - - 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 -urNp linux-3.0.4/kernel/mutex-debug.h linux-3.0.4/kernel/mutex-debug.h ---- linux-3.0.4/kernel/mutex-debug.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/mutex-debug.h 2011-08-23 21:47:56.000000000 -0400 -@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(stru - 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 -urNp linux-3.0.4/kernel/padata.c linux-3.0.4/kernel/padata.c ---- linux-3.0.4/kernel/padata.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/padata.c 2011-08-23 21:47:56.000000000 -0400 -@@ -132,10 +132,10 @@ int padata_do_parallel(struct padata_ins - padata->pd = pd; - padata->cb_cpu = cb_cpu; - -- if (unlikely(atomic_read(&pd->seq_nr) == pd->max_seq_nr)) -- atomic_set(&pd->seq_nr, -1); -+ if (unlikely(atomic_read_unchecked(&pd->seq_nr) == pd->max_seq_nr)) -+ atomic_set_unchecked(&pd->seq_nr, -1); - -- padata->seq_nr = atomic_inc_return(&pd->seq_nr); -+ padata->seq_nr = atomic_inc_return_unchecked(&pd->seq_nr); - - target_cpu = padata_cpu_hash(padata); - queue = per_cpu_ptr(pd->pqueue, target_cpu); -@@ -444,7 +444,7 @@ static struct parallel_data *padata_allo - padata_init_pqueues(pd); - padata_init_squeues(pd); - setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd); -- atomic_set(&pd->seq_nr, -1); -+ atomic_set_unchecked(&pd->seq_nr, -1); - atomic_set(&pd->reorder_objects, 0); - atomic_set(&pd->refcnt, 0); - pd->pinst = pinst; -diff -urNp linux-3.0.4/kernel/panic.c linux-3.0.4/kernel/panic.c ---- linux-3.0.4/kernel/panic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/panic.c 2011-08-23 21:48:14.000000000 -0400 -@@ -369,7 +369,7 @@ static void warn_slowpath_common(const c - 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); -@@ -424,7 +424,8 @@ 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 -urNp linux-3.0.4/kernel/pid.c linux-3.0.4/kernel/pid.c ---- linux-3.0.4/kernel/pid.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/pid.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 - - 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; -@@ -419,8 +420,15 @@ 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()); -- 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) -@@ -428,6 +436,12 @@ struct task_struct *find_task_by_vpid(pi - 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()); -+ 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 -urNp linux-3.0.4/kernel/posix-cpu-timers.c linux-3.0.4/kernel/posix-cpu-timers.c ---- linux-3.0.4/kernel/posix-cpu-timers.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/posix-cpu-timers.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -1604,14 +1605,14 @@ 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 -urNp linux-3.0.4/kernel/posix-timers.c linux-3.0.4/kernel/posix-timers.c ---- linux-3.0.4/kernel/posix-timers.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/posix-timers.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 cloc - */ - 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, -@@ -272,6 +273,8 @@ static __init int init_posix_timers(void - .timer_del = common_timer_del, - }; - -+ pax_track_stack(); -+ - posix_timers_register_clock(CLOCK_REALTIME, &clock_realtime); - posix_timers_register_clock(CLOCK_MONOTONIC, &clock_monotonic); - posix_timers_register_clock(CLOCK_MONOTONIC_RAW, &clock_monotonic_raw); -@@ -473,7 +476,7 @@ void posix_timers_register_clock(const c - return; - } - -- posix_clocks[clock_id] = *new_clock; -+ posix_clocks[clock_id] = new_clock; - } - EXPORT_SYMBOL_GPL(posix_timers_register_clock); - -@@ -519,9 +522,9 @@ static struct k_clock *clockid_to_kclock - 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 +962,13 @@ SYSCALL_DEFINE2(clock_settime, const clo - 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 -urNp linux-3.0.4/kernel/power/poweroff.c linux-3.0.4/kernel/power/poweroff.c ---- linux-3.0.4/kernel/power/poweroff.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/power/poweroff.c 2011-08-23 21:47:56.000000000 -0400 -@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_powerof - .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 -urNp linux-3.0.4/kernel/power/process.c linux-3.0.4/kernel/power/process.c ---- linux-3.0.4/kernel/power/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/power/process.c 2011-08-23 21:47:56.000000000 -0400 -@@ -41,6 +41,7 @@ static int try_to_freeze_tasks(bool sig_ - u64 elapsed_csecs64; - unsigned int elapsed_csecs; - bool wakeup = false; -+ bool timedout = false; - - do_gettimeofday(&start); - -@@ -51,6 +52,8 @@ static int try_to_freeze_tasks(bool sig_ - - while (true) { - todo = 0; -+ if (time_after(jiffies, end_time)) -+ timedout = true; - read_lock(&tasklist_lock); - do_each_thread(g, p) { - if (frozen(p) || !freezable(p)) -@@ -71,9 +74,13 @@ static int try_to_freeze_tasks(bool sig_ - * try_to_stop() after schedule() in ptrace/signal - * stop sees TIF_FREEZE. - */ -- 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); - -@@ -82,7 +89,7 @@ static int try_to_freeze_tasks(bool sig_ - todo += wq_busy; - } - -- if (!todo || time_after(jiffies, end_time)) -+ if (!todo || timedout) - break; - - if (pm_wakeup_pending()) { -diff -urNp linux-3.0.4/kernel/printk.c linux-3.0.4/kernel/printk.c ---- linux-3.0.4/kernel/printk.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/printk.c 2011-08-23 21:48:14.000000000 -0400 -@@ -313,12 +313,17 @@ static int check_syslog_permissions(int - 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; - /* For historical reasons, accept CAP_SYS_ADMIN too, with a warning */ - if (capable(CAP_SYS_ADMIN)) { -- WARN_ONCE(1, "Attempt to access syslog with CAP_SYS_ADMIN " -+ printk_once(KERN_WARNING "Attempt to access syslog with CAP_SYS_ADMIN " - "but no CAP_SYSLOG (deprecated).\n"); - return 0; - } -diff -urNp linux-3.0.4/kernel/profile.c linux-3.0.4/kernel/profile.c ---- linux-3.0.4/kernel/profile.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/profile.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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, vo - * 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, vo - { - 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 __u - 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 - } - #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 -urNp linux-3.0.4/kernel/ptrace.c linux-3.0.4/kernel/ptrace.c ---- linux-3.0.4/kernel/ptrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/ptrace.c 2011-08-23 21:48:14.000000000 -0400 -@@ -132,7 +132,8 @@ int ptrace_check_attach(struct task_stru - return ret; - } - --int __ptrace_may_access(struct task_struct *task, unsigned int mode) -+static int __ptrace_may_access(struct task_struct *task, unsigned int mode, -+ unsigned int log) - { - const struct cred *cred = current_cred(), *tcred; - -@@ -158,7 +159,8 @@ int __ptrace_may_access(struct task_stru - cred->gid == tcred->sgid && - cred->gid == tcred->gid)) - goto ok; -- if (ns_capable(tcred->user->user_ns, CAP_SYS_PTRACE)) -+ if ((!log && ns_capable_nolog(tcred->user->user_ns, CAP_SYS_PTRACE)) || -+ (log && ns_capable(tcred->user->user_ns, CAP_SYS_PTRACE))) - goto ok; - rcu_read_unlock(); - return -EPERM; -@@ -167,7 +169,9 @@ ok: - smp_rmb(); - if (task->mm) - dumpable = get_dumpable(task->mm); -- if (!dumpable && !task_ns_capable(task, CAP_SYS_PTRACE)) -+ if (!dumpable && -+ ((!log && !task_ns_capable_nolog(task, CAP_SYS_PTRACE)) || -+ (log && !task_ns_capable(task, CAP_SYS_PTRACE)))) - return -EPERM; - - return security_ptrace_access_check(task, mode); -@@ -177,7 +181,16 @@ bool ptrace_may_access(struct task_struc - { - int err; - task_lock(task); -- err = __ptrace_may_access(task, mode); -+ err = __ptrace_may_access(task, mode, 0); -+ task_unlock(task); -+ return !err; -+} -+ -+bool ptrace_may_access_log(struct task_struct *task, unsigned int mode) -+{ -+ int err; -+ task_lock(task); -+ err = __ptrace_may_access(task, mode, 1); - task_unlock(task); - return !err; - } -@@ -205,7 +218,7 @@ static int ptrace_attach(struct task_str - goto out; - - task_lock(task); -- retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH); -+ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH, 1); - task_unlock(task); - if (retval) - goto unlock_creds; -@@ -218,7 +231,7 @@ static int ptrace_attach(struct task_str - goto unlock_tasklist; - - task->ptrace = PT_PTRACED; -- if (task_ns_capable(task, CAP_SYS_PTRACE)) -+ if (task_ns_capable_nolog(task, CAP_SYS_PTRACE)) - task->ptrace |= PT_PTRACE_CAP; - - __ptrace_link(task, current); -@@ -406,6 +419,8 @@ int ptrace_readdata(struct task_struct * - { - int copied = 0; - -+ pax_track_stack(); -+ - while (len > 0) { - char buf[128]; - int this_len, retval; -@@ -417,7 +432,7 @@ int ptrace_readdata(struct task_struct * - 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; -@@ -431,6 +446,8 @@ int ptrace_writedata(struct task_struct - { - int copied = 0; - -+ pax_track_stack(); -+ - while (len > 0) { - char buf[128]; - int this_len, retval; -@@ -613,9 +630,11 @@ int ptrace_request(struct task_struct *c - { - int ret = -EIO; - siginfo_t siginfo; -- void __user *datavp = (void __user *) data; -+ void __user *datavp = (__force void __user *) data; - unsigned long __user *datalp = datavp; - -+ pax_track_stack(); -+ - switch (request) { - case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: -@@ -761,14 +780,21 @@ SYSCALL_DEFINE4(ptrace, long, request, l - goto out; - } - -+ if (gr_handle_ptrace(child, request)) { -+ ret = -EPERM; -+ goto out_put_task_struct; -+ } -+ - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - /* - * 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; - } - -@@ -793,7 +819,7 @@ int generic_ptrace_peekdata(struct task_ - 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, -@@ -816,6 +842,8 @@ int compat_ptrace_request(struct task_st - siginfo_t siginfo; - int ret; - -+ pax_track_stack(); -+ - switch (request) { - case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: -@@ -903,14 +931,21 @@ asmlinkage long compat_sys_ptrace(compat - goto out; - } - -+ if (gr_handle_ptrace(child, request)) { -+ ret = -EPERM; -+ goto out_put_task_struct; -+ } -+ - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - /* - * 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 -urNp linux-3.0.4/kernel/rcutorture.c linux-3.0.4/kernel/rcutorture.c ---- linux-3.0.4/kernel/rcutorture.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/rcutorture.c 2011-08-23 21:47:56.000000000 -0400 -@@ -138,12 +138,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_ - { 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; -@@ -223,11 +223,11 @@ 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); -@@ -240,7 +240,7 @@ 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); -@@ -360,7 +360,7 @@ 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); -@@ -407,7 +407,7 @@ static void rcu_sync_torture_deferred_fr - 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); -@@ -882,7 +882,7 @@ 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); - } -@@ -951,7 +951,7 @@ static void rcu_torture_timer(unsigned l - return; - } - 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++; -@@ -1013,7 +1013,7 @@ rcu_torture_reader(void *arg) - continue; - } - 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; -@@ -1072,16 +1072,16 @@ 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, - n_rcu_torture_boosts, - n_rcu_torture_timers); -- 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) -@@ -1089,7 +1089,7 @@ 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: "); -@@ -1103,7 +1103,7 @@ 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) -@@ -1412,7 +1412,7 @@ 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 - rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS"); -@@ -1476,17 +1476,17 @@ 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 -urNp linux-3.0.4/kernel/rcutree.c linux-3.0.4/kernel/rcutree.c ---- linux-3.0.4/kernel/rcutree.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/rcutree.c 2011-09-14 09:08:05.000000000 -0400 -@@ -356,9 +356,9 @@ void rcu_enter_nohz(void) - } - /* 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); - local_irq_restore(flags); - - /* If the interrupt queued a callback, get out of dyntick mode. */ -@@ -387,10 +387,10 @@ void rcu_exit_nohz(void) - return; - } - 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)); - local_irq_restore(flags); - } - -@@ -406,14 +406,14 @@ 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)); - } - - /** -@@ -432,9 +432,9 @@ 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); - } - - /** -@@ -469,7 +469,7 @@ void rcu_irq_exit(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 0; - } - -@@ -484,7 +484,7 @@ static int rcu_implicit_dynticks_qs(stru - unsigned long curr; - unsigned long snap; - -- curr = (unsigned long)atomic_add_return(0, &rdp->dynticks->dynticks); -+ curr = (unsigned long)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); - snap = (unsigned long)rdp->dynticks_snap; - - /* -@@ -1470,7 +1470,7 @@ __rcu_process_callbacks(struct rcu_state - /* - * Do softirq processing for the current CPU. - */ --static void rcu_process_callbacks(struct softirq_action *unused) -+static void rcu_process_callbacks(void) - { - __rcu_process_callbacks(&rcu_sched_state, - &__get_cpu_var(rcu_sched_data)); -diff -urNp linux-3.0.4/kernel/rcutree.h linux-3.0.4/kernel/rcutree.h ---- linux-3.0.4/kernel/rcutree.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/rcutree.h 2011-09-14 09:08:05.000000000 -0400 -@@ -86,7 +86,7 @@ - struct rcu_dynticks { - int dynticks_nesting; /* Track irq/process nesting level. */ - int dynticks_nmi_nesting; /* Track NMI nesting level. */ -- atomic_t dynticks; /* Even value for dynticks-idle, else odd. */ -+ atomic_unchecked_t dynticks; /* Even value for dynticks-idle, else odd. */ - }; - - /* RCU's kthread states for tracing. */ -diff -urNp linux-3.0.4/kernel/rcutree_plugin.h linux-3.0.4/kernel/rcutree_plugin.h ---- linux-3.0.4/kernel/rcutree_plugin.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/rcutree_plugin.h 2011-08-23 21:47:56.000000000 -0400 -@@ -822,7 +822,7 @@ 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: -@@ -1774,8 +1774,8 @@ EXPORT_SYMBOL_GPL(synchronize_sched_expe - - #else /* #ifndef CONFIG_SMP */ - --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) - { -@@ -1830,7 +1830,7 @@ 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(); - - /* -@@ -1851,7 +1851,7 @@ 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; -@@ -1866,7 +1866,7 @@ void synchronize_sched_expedited(void) - * grace period works for us. - */ - get_online_cpus(); -- snap = atomic_read(&sync_sched_expedited_started) - 1; -+ snap = atomic_read_unchecked(&sync_sched_expedited_started) - 1; - smp_mb(); /* ensure read is before try_stop_cpus(). */ - } - -@@ -1877,12 +1877,12 @@ 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(); - } -diff -urNp linux-3.0.4/kernel/relay.c linux-3.0.4/kernel/relay.c ---- linux-3.0.4/kernel/relay.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/relay.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1236,6 +1236,8 @@ static ssize_t subbuf_splice_actor(struc - }; - ssize_t ret; - -+ pax_track_stack(); -+ - if (rbuf->subbufs_produced == rbuf->subbufs_consumed) - return 0; - if (splice_grow_spd(pipe, &spd)) -diff -urNp linux-3.0.4/kernel/resource.c linux-3.0.4/kernel/resource.c ---- linux-3.0.4/kernel/resource.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/resource.c 2011-08-23 21:48:14.000000000 -0400 -@@ -141,8 +141,18 @@ static const struct file_operations proc - - 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 -urNp linux-3.0.4/kernel/rtmutex-tester.c linux-3.0.4/kernel/rtmutex-tester.c ---- linux-3.0.4/kernel/rtmutex-tester.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/rtmutex-tester.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_ - - 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_ - 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_ - 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_ - 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_ - 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_mu - 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_mu - 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_mu - 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 -urNp linux-3.0.4/kernel/sched_autogroup.c linux-3.0.4/kernel/sched_autogroup.c ---- linux-3.0.4/kernel/sched_autogroup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/sched_autogroup.c 2011-08-23 21:47:56.000000000 -0400 -@@ -7,7 +7,7 @@ - - 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; - - static void __init autogroup_init(struct task_struct *init_task) - { -@@ -78,7 +78,7 @@ static inline struct autogroup *autogrou - - 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 -urNp linux-3.0.4/kernel/sched.c linux-3.0.4/kernel/sched.c ---- linux-3.0.4/kernel/sched.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/sched.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4251,6 +4251,8 @@ asmlinkage void __sched schedule(void) - struct rq *rq; - int cpu; - -+ pax_track_stack(); -+ - need_resched: - preempt_disable(); - cpu = smp_processor_id(); -@@ -4934,6 +4936,8 @@ int can_nice(const struct task_struct *p - /* 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)); - } -@@ -4967,7 +4971,8 @@ 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); -@@ -5111,6 +5116,7 @@ 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 -urNp linux-3.0.4/kernel/sched_fair.c linux-3.0.4/kernel/sched_fair.c ---- linux-3.0.4/kernel/sched_fair.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/sched_fair.c 2011-08-23 21:47:56.000000000 -0400 -@@ -4050,7 +4050,7 @@ static void nohz_idle_balance(int this_c - * 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 -urNp linux-3.0.4/kernel/signal.c linux-3.0.4/kernel/signal.c ---- linux-3.0.4/kernel/signal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/signal.c 2011-08-23 21:48:14.000000000 -0400 -@@ -45,12 +45,12 @@ static struct kmem_cache *sigqueue_cache - - 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 || -@@ -60,7 +60,7 @@ static int sig_handler_ignored(void __us - static int sig_task_ignored(struct task_struct *t, int sig, - int from_ancestor_ns) - { -- void __user *handler; -+ __sighandler_t handler; - - handler = sig_handler(t, sig); - -@@ -320,6 +320,9 @@ __sigqueue_alloc(int sig, struct task_st - 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)) { -@@ -444,7 +447,7 @@ flush_signal_handlers(struct task_struct - - 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) -@@ -770,6 +773,13 @@ static int check_kill_permission(int sig - } - } - -+ /* 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); - } - -@@ -1092,7 +1102,7 @@ __group_send_sig_info(int sig, struct si - 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); -@@ -1129,6 +1139,7 @@ force_sig_info(int sig, struct siginfo * - 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]; -@@ -1143,9 +1154,18 @@ force_sig_info(int sig, struct siginfo * - } - 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; - } - -@@ -1212,8 +1232,11 @@ int group_send_sig_info(int sig, struct - 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; - } -@@ -1839,6 +1862,8 @@ void ptrace_notify(int exit_code) - { - siginfo_t info; - -+ pax_track_stack(); -+ - BUG_ON((exit_code & (0x7f | ~0xffff)) != SIGTRAP); - - memset(&info, 0, sizeof info); -@@ -2639,7 +2664,15 @@ do_send_specific(pid_t tgid, pid_t pid, - 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 -urNp linux-3.0.4/kernel/smp.c linux-3.0.4/kernel/smp.c ---- linux-3.0.4/kernel/smp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/smp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -580,22 +580,22 @@ int smp_call_function(smp_call_func_t fu - } - 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 -urNp linux-3.0.4/kernel/softirq.c linux-3.0.4/kernel/softirq.c ---- linux-3.0.4/kernel/softirq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/softirq.c 2011-08-23 21:47:56.000000000 -0400 -@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec - - 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" -@@ -385,9 +385,11 @@ void raise_softirq(unsigned int nr) - local_irq_restore(flags); - } - --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(); - } - - /* -@@ -441,7 +443,7 @@ void __tasklet_hi_schedule_first(struct - - EXPORT_SYMBOL(__tasklet_hi_schedule_first); - --static void tasklet_action(struct softirq_action *a) -+static void tasklet_action(void) - { - struct tasklet_struct *list; - -@@ -476,7 +478,7 @@ static void tasklet_action(struct softir - } - } - --static void tasklet_hi_action(struct softirq_action *a) -+static void tasklet_hi_action(void) - { - struct tasklet_struct *list; - -diff -urNp linux-3.0.4/kernel/sys.c linux-3.0.4/kernel/sys.c ---- linux-3.0.4/kernel/sys.c 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/kernel/sys.c 2011-08-29 23:26:27.000000000 -0400 -@@ -158,6 +158,12 @@ static int set_one_prio(struct task_stru - 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; -@@ -541,6 +547,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g - 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; -@@ -570,6 +579,10 @@ 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) -@@ -595,11 +608,18 @@ static int set_user(struct cred *new) - if (!new_user) - return -EAGAIN; - -+ /* -+ * We don't fail in case of NPROC limit excess here because too many -+ * poorly written programs don't check set*uid() return code, assuming -+ * it never fails if called by root. We may still enforce NPROC limit -+ * for programs doing set*uid()+execve() by harmlessly deferring the -+ * failure to the execve() stage. -+ */ - if (atomic_read(&new_user->processes) >= rlimit(RLIMIT_NPROC) && -- new_user != INIT_USER) { -- free_uid(new_user); -- return -EAGAIN; -- } -+ new_user != INIT_USER) -+ current->flags |= PF_NPROC_EXCEEDED; -+ else -+ current->flags &= ~PF_NPROC_EXCEEDED; - - free_uid(new->user); - new->user = new_user; -@@ -650,6 +670,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, u - 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) -@@ -694,6 +717,12 @@ 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) { -@@ -748,6 +777,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, - goto error; - } - -+ if (gr_check_user_change(ruid, euid, -1)) -+ goto error; -+ - if (ruid != (uid_t) -1) { - new->uid = ruid; - if (ruid != old->uid) { -@@ -812,6 +844,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, - 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) -@@ -858,6 +893,9 @@ 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)) { -@@ -868,6 +906,7 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) - } - } - -+error: - abort_creds(new); - return old_fsuid; - -@@ -894,12 +933,16 @@ 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; - -@@ -1680,7 +1723,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsi - error = get_dumpable(me->mm); - break; - case PR_SET_DUMPABLE: -- if (arg2 < 0 || arg2 > 1) { -+ if (arg2 > 1) { - error = -EINVAL; - break; - } -diff -urNp linux-3.0.4/kernel/sysctl.c linux-3.0.4/kernel/sysctl.c ---- linux-3.0.4/kernel/sysctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/sysctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -85,6 +85,13 @@ - - - #if defined(CONFIG_SYSCTL) -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+extern __u32 gr_handle_sysctl(const ctl_table *table, const int op); -+extern int gr_handle_sysctl_mod(const char *dirname, const char *name, -+ const int op); -+extern int gr_handle_chroot_sysctl(const int op); - - /* External variables not in a header file. */ - extern int sysctl_overcommit_memory; -@@ -197,6 +204,7 @@ static int sysrq_sysctl_handler(ctl_tabl - } - - #endif -+extern struct ctl_table grsecurity_table[]; - - static struct ctl_table root_table[]; - static struct ctl_table_root sysctl_table_root; -@@ -226,6 +234,20 @@ 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 root_table[] = { -@@ -272,6 +294,22 @@ 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, -@@ -546,7 +584,7 @@ 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", -@@ -713,16 +751,20 @@ 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_dmesg_restrict, -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ .extra1 = &two, -+#else - .extra1 = &zero, -+#endif - .extra2 = &two, - }, --#endif - { - .procname = "ngroups_max", - .data = &ngroups_max, -@@ -1205,6 +1247,13 @@ 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", -@@ -1714,6 +1763,17 @@ static int test_perm(int mode, int op) - int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op) - { - int mode; -+ int error; -+ -+ if (table->parent != NULL && table->parent->procname != NULL && -+ table->procname != NULL && -+ gr_handle_sysctl_mod(table->parent->procname, table->procname, op)) -+ return -EACCES; -+ if (gr_handle_chroot_sysctl(op)) -+ return -EACCES; -+ error = gr_handle_sysctl(table, op); -+ if (error) -+ return error; - - if (root->permissions) - mode = root->permissions(root, current->nsproxy, table); -@@ -2118,6 +2178,16 @@ int proc_dostring(struct ctl_table *tabl - 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; -@@ -2223,6 +2293,8 @@ static int proc_put_long(void __user **b - 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; -@@ -2539,8 +2611,11 @@ static int __do_proc_doulongvec_minmax(v - *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; -@@ -2935,6 +3010,12 @@ int proc_dostring(struct ctl_table *tabl - 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) - { -@@ -2991,6 +3072,7 @@ 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); - EXPORT_SYMBOL(register_sysctl_table); -diff -urNp linux-3.0.4/kernel/sysctl_check.c linux-3.0.4/kernel/sysctl_check.c ---- linux-3.0.4/kernel/sysctl_check.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/sysctl_check.c 2011-08-23 21:48:14.000000000 -0400 -@@ -129,6 +129,7 @@ int sysctl_check_table(struct nsproxy *n - set_fail(&fail, table, "Directory with extra2"); - } else { - if ((table->proc_handler == proc_dostring) || -+ (table->proc_handler == proc_dostring_modpriv) || - (table->proc_handler == proc_dointvec) || - (table->proc_handler == proc_dointvec_minmax) || - (table->proc_handler == proc_dointvec_jiffies) || -diff -urNp linux-3.0.4/kernel/taskstats.c linux-3.0.4/kernel/taskstats.c ---- linux-3.0.4/kernel/taskstats.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/taskstats.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 <asm/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 -@@ -558,6 +561,9 @@ 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 -urNp linux-3.0.4/kernel/time/alarmtimer.c linux-3.0.4/kernel/time/alarmtimer.c ---- linux-3.0.4/kernel/time/alarmtimer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time/alarmtimer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -685,7 +685,7 @@ static int __init alarmtimer_init(void) - { - 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 -urNp linux-3.0.4/kernel/time/tick-broadcast.c linux-3.0.4/kernel/time/tick-broadcast.c ---- linux-3.0.4/kernel/time/tick-broadcast.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time/tick-broadcast.c 2011-08-23 21:47:56.000000000 -0400 -@@ -115,7 +115,7 @@ int tick_device_uses_broadcast(struct cl - * 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 -urNp linux-3.0.4/kernel/time/timekeeping.c linux-3.0.4/kernel/time/timekeeping.c ---- linux-3.0.4/kernel/time/timekeeping.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time/timekeeping.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -361,6 +362,8 @@ int do_settimeofday(const struct timespe - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - -+ gr_log_timechange(); -+ - write_seqlock_irqsave(&xtime_lock, flags); - - timekeeping_forward_now(); -diff -urNp linux-3.0.4/kernel/time/timer_list.c linux-3.0.4/kernel/time/timer_list.c ---- linux-3.0.4/kernel/time/timer_list.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time/timer_list.c 2011-08-23 21:48:14.000000000 -0400 -@@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, - - 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 - { - 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 -urNp linux-3.0.4/kernel/time/timer_stats.c linux-3.0.4/kernel/time/timer_stats.c ---- linux-3.0.4/kernel/time/timer_stats.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time/timer_stats.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 *time - 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 *time - - 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 * - - 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(voi - { - 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 -urNp linux-3.0.4/kernel/time.c linux-3.0.4/kernel/time.c ---- linux-3.0.4/kernel/time.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/time.c 2011-08-23 21:48:14.000000000 -0400 -@@ -163,6 +163,11 @@ int do_sys_settimeofday(const struct tim - return error; - - if (tz) { -+ /* we log in do_settimeofday called below, so don't log twice -+ */ -+ if (!tv) -+ gr_log_timechange(); -+ - /* SMP safe, global irq locking makes it work. */ - sys_tz = *tz; - update_vsyscall_tz(); -diff -urNp linux-3.0.4/kernel/timer.c linux-3.0.4/kernel/timer.c ---- linux-3.0.4/kernel/timer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/timer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1304,7 +1304,7 @@ 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 -urNp linux-3.0.4/kernel/trace/blktrace.c linux-3.0.4/kernel/trace/blktrace.c ---- linux-3.0.4/kernel/trace/blktrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/blktrace.c 2011-08-23 21:47:56.000000000 -0400 -@@ -321,7 +321,7 @@ static ssize_t blk_dropped_read(struct f - 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)); - } -@@ -386,7 +386,7 @@ static int blk_subbuf_start_callback(str - return 1; - - bt = buf->chan->private_data; -- atomic_inc(&bt->dropped); -+ atomic_inc_unchecked(&bt->dropped); - return 0; - } - -@@ -487,7 +487,7 @@ int do_blk_trace_setup(struct request_qu - - 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 -urNp linux-3.0.4/kernel/trace/ftrace.c linux-3.0.4/kernel/trace/ftrace.c ---- linux-3.0.4/kernel/trace/ftrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/ftrace.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1566,12 +1566,17 @@ ftrace_code_disable(struct module *mod, - 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; - } - - /* -@@ -2550,7 +2555,7 @@ static void ftrace_free_entry_rcu(struct - - 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 -urNp linux-3.0.4/kernel/trace/trace.c linux-3.0.4/kernel/trace/trace.c ---- linux-3.0.4/kernel/trace/trace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3339,6 +3339,8 @@ static ssize_t tracing_splice_read_pipe( - size_t rem; - unsigned int i; - -+ pax_track_stack(); -+ - if (splice_grow_spd(pipe, &spd)) - return -ENOMEM; - -@@ -3822,6 +3824,8 @@ tracing_buffers_splice_read(struct file - int entries, size, i; - size_t ret; - -+ pax_track_stack(); -+ - if (splice_grow_spd(pipe, &spd)) - return -ENOMEM; - -@@ -3990,10 +3994,9 @@ static const struct file_operations trac - }; - #endif - --static struct dentry *d_tracer; -- - struct dentry *tracing_init_dentry(void) - { -+ static struct dentry *d_tracer; - static int once; - - if (d_tracer) -@@ -4013,10 +4016,9 @@ 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 -urNp linux-3.0.4/kernel/trace/trace_events.c linux-3.0.4/kernel/trace/trace_events.c ---- linux-3.0.4/kernel/trace/trace_events.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace_events.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1318,10 +1318,6 @@ 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 * -@@ -1342,17 +1338,12 @@ 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); - -@@ -1376,8 +1367,8 @@ static void trace_module_add_events(stru - - 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 -urNp linux-3.0.4/kernel/trace/trace_mmiotrace.c linux-3.0.4/kernel/trace/trace_mmiotrace.c ---- linux-3.0.4/kernel/trace/trace_mmiotrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace_mmiotrace.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_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 - 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 - 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 -urNp linux-3.0.4/kernel/trace/trace_output.c linux-3.0.4/kernel/trace/trace_output.c ---- linux-3.0.4/kernel/trace/trace_output.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace_output.c 2011-08-23 21:47:56.000000000 -0400 -@@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, - - 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 -urNp linux-3.0.4/kernel/trace/trace_stack.c linux-3.0.4/kernel/trace/trace_stack.c ---- linux-3.0.4/kernel/trace/trace_stack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace_stack.c 2011-08-23 21:47:56.000000000 -0400 -@@ -50,7 +50,7 @@ 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 -urNp linux-3.0.4/kernel/trace/trace_workqueue.c linux-3.0.4/kernel/trace/trace_workqueue.c ---- linux-3.0.4/kernel/trace/trace_workqueue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/kernel/trace/trace_workqueue.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 se - 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 -urNp linux-3.0.4/lib/bug.c linux-3.0.4/lib/bug.c ---- linux-3.0.4/lib/bug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/bug.c 2011-08-23 21:47:56.000000000 -0400 -@@ -133,6 +133,8 @@ enum bug_trap_type report_bug(unsigned l - return BUG_TRAP_TYPE_NONE; - - bug = find_bug(bugaddr); -+ if (!bug) -+ return BUG_TRAP_TYPE_NONE; - - file = NULL; - line = 0; -diff -urNp linux-3.0.4/lib/debugobjects.c linux-3.0.4/lib/debugobjects.c ---- linux-3.0.4/lib/debugobjects.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/debugobjects.c 2011-08-23 21:47:56.000000000 -0400 -@@ -284,7 +284,7 @@ static void debug_object_is_on_stack(voi - 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 -urNp linux-3.0.4/lib/dma-debug.c linux-3.0.4/lib/dma-debug.c ---- linux-3.0.4/lib/dma-debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/dma-debug.c 2011-08-23 21:47:56.000000000 -0400 -@@ -870,7 +870,7 @@ 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 -urNp linux-3.0.4/lib/extable.c linux-3.0.4/lib/extable.c ---- linux-3.0.4/lib/extable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/extable.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 v - 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 -urNp linux-3.0.4/lib/inflate.c linux-3.0.4/lib/inflate.c ---- linux-3.0.4/lib/inflate.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/inflate.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/lib/Kconfig.debug linux-3.0.4/lib/Kconfig.debug ---- linux-3.0.4/lib/Kconfig.debug 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/Kconfig.debug 2011-08-23 21:48:14.000000000 -0400 -@@ -1088,6 +1088,7 @@ 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 - select KALLSYMS - select KALLSYMS_ALL -diff -urNp linux-3.0.4/lib/kref.c linux-3.0.4/lib/kref.c ---- linux-3.0.4/lib/kref.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/kref.c 2011-08-23 21:47:56.000000000 -0400 -@@ -52,7 +52,7 @@ void kref_get(struct kref *kref) - */ - int kref_put(struct kref *kref, void (*release)(struct kref *kref)) - { -- WARN_ON(release == NULL); -+ BUG_ON(release == NULL); - WARN_ON(release == (void (*)(struct kref *))kfree); - - if (atomic_dec_and_test(&kref->refcount)) { -diff -urNp linux-3.0.4/lib/radix-tree.c linux-3.0.4/lib/radix-tree.c ---- linux-3.0.4/lib/radix-tree.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/radix-tree.c 2011-08-23 21:47:56.000000000 -0400 -@@ -80,7 +80,7 @@ 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 -urNp linux-3.0.4/lib/vsprintf.c linux-3.0.4/lib/vsprintf.c ---- linux-3.0.4/lib/vsprintf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/lib/vsprintf.c 2011-08-23 21:48:14.000000000 -0400 -@@ -16,6 +16,9 @@ - * - scnprintf and vscnprintf - */ - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+#define __INCLUDED_BY_HIDESYM 1 -+#endif - #include <stdarg.h> - #include <linux/module.h> - #include <linux/types.h> -@@ -435,7 +438,7 @@ char *symbol_string(char *buf, char *end - 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); -@@ -799,7 +802,11 @@ char *uuid_string(char *buf, char *end, - return string(buf, end, uuid, 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 -@@ -813,6 +820,8 @@ 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 -@@ -857,12 +866,12 @@ char *pointer(const char *fmt, char *buf - { - 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) { -@@ -872,6 +881,13 @@ char *pointer(const char *fmt, char *buf - /* 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': -@@ -1631,11 +1647,11 @@ int bstr_printf(char *buf, size_t size, - 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; \ -@@ -1698,7 +1714,7 @@ int bstr_printf(char *buf, size_t size, - 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 -urNp linux-3.0.4/localversion-grsec linux-3.0.4/localversion-grsec ---- linux-3.0.4/localversion-grsec 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/localversion-grsec 2011-08-23 21:48:14.000000000 -0400 -@@ -0,0 +1 @@ -+-grsec -diff -urNp linux-3.0.4/Makefile linux-3.0.4/Makefile ---- linux-3.0.4/Makefile 2011-09-02 18:11:26.000000000 -0400 -+++ linux-3.0.4/Makefile 2011-09-17 00:56:07.000000000 -0400 -@@ -245,8 +245,9 @@ CONFIG_SHELL := $(shell if [ -x "$$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 -+HOSTCFLAGS += $(call cc-option, -Wno-empty-body) -+HOSTCXXFLAGS = -O2 -fno-delete-null-pointer-checks - - # Decide whether to build built-in, modular, or both. - # Normally, just do built-in. -@@ -365,10 +366,12 @@ LINUXINCLUDE := -I$(srctree)/arch/$(h - KBUILD_CPPFLAGS := -D__KERNEL__ - - KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -+ -W -Wno-unused-parameter -Wno-missing-field-initializers \ - -fno-strict-aliasing -fno-common \ - -Werror-implicit-function-declaration \ - -Wno-format-security \ - -fno-delete-null-pointer-checks -+KBUILD_CFLAGS += $(call cc-option, -Wno-empty-body) - KBUILD_AFLAGS_KERNEL := - KBUILD_CFLAGS_KERNEL := - KBUILD_AFLAGS := -D__ASSEMBLY__ -@@ -407,8 +410,8 @@ export RCS_TAR_IGNORE := --exclude SCCS - # 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 - $(Q)rm -f .tmp_quiet_recordmcount - -@@ -564,6 +567,31 @@ else - KBUILD_CFLAGS += -O2 - endif - -+ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(CC)"), y) -+CONSTIFY_PLUGIN := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN -+ifdef CONFIG_PAX_KERNEXEC_PLUGIN -+KERNEXEC_PLUGIN := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so -+endif -+ifdef CONFIG_KALLOCSTAT_PLUGIN -+KALLOCSTAT_PLUGIN := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so -+endif -+ifdef CONFIG_PAX_MEMORY_STACKLEAK -+STACKLEAK_PLUGIN := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -fplugin-arg-stackleak_plugin-track-lowest-sp=100 -+endif -+GCC_PLUGINS := $(CONSTIFY_PLUGIN) $(STACKLEAK_PLUGIN) $(KALLOCSTAT_PLUGIN) $(KERNEXEC_PLUGIN) -+export CONSTIFY_PLUGIN STACKLEAK_PLUGIN KERNEXEC_PLUGIN -+gcc-plugins: -+ $(Q)$(MAKE) $(build)=tools/gcc -+else -+gcc-plugins: -+ifeq ($(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.)) -+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 constification will be less secure" -+endif -+ - include $(srctree)/arch/$(SRCARCH)/Makefile - - ifneq ($(CONFIG_FRAME_WARN),0) -@@ -708,7 +736,7 @@ export mod_strip_cmd - - - ifeq ($(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) $(drivers-m) \ -@@ -907,6 +935,8 @@ define rule_vmlinux-modpost - endef - - # vmlinux image - including updated kernel symbols -+$(vmlinux-all): KBUILD_CFLAGS += $(GCC_PLUGINS) -+$(vmlinux-all): gcc-plugins - vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE - ifdef CONFIG_HEADERS_CHECK - $(Q)$(MAKE) -f $(srctree)/Makefile headers_check -@@ -941,7 +971,8 @@ $(sort $(vmlinux-init) $(vmlinux-main)) - # Error messages still appears in the original language - - PHONY += $(vmlinux-dirs) --$(vmlinux-dirs): prepare scripts -+$(vmlinux-dirs): KBUILD_CFLAGS += $(GCC_PLUGINS) -+$(vmlinux-dirs): gcc-plugins prepare scripts - $(Q)$(MAKE) $(build)=$@ - - # Store (new) KERNELRELASE string in include/config/kernel.release -@@ -986,6 +1017,7 @@ prepare0: archprepare FORCE - $(Q)$(MAKE) $(build)=. missing-syscalls - - # All the preparing.. -+prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS),$(KBUILD_CFLAGS)) - prepare: prepare0 - - # Generate some files -@@ -1102,7 +1134,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modu - - # 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 -@@ -1198,7 +1230,7 @@ distclean: mrproper - @find $(srctree) $(RCS_FIND_IGNORE) \ - $ -name '*.orig' -o -name '*.rej' -o -name '*~' \ - -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ -- -o -name '.*.rej' -o -size 0 \ -+ -o -name '.*.rej' -o -name '*.so' -o -size 0 \ - -o -name '*%' -o -name '.*.cmd' -o -name 'core' $ \ - -type f -print | xargs rm -f - -@@ -1359,6 +1391,7 @@ PHONY += $(module-dirs) modules - $(module-dirs): crmodverdir $(objtree)/Module.symvers - $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) - -+modules: KBUILD_CFLAGS += $(GCC_PLUGINS) - modules: $(module-dirs) - @$(kecho) ' Building modules, stage 2.'; - $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost -@@ -1485,17 +1518,19 @@ else - target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) - endif - --%.s: %.c prepare scripts FORCE -+%.s: KBUILD_CFLAGS += $(GCC_PLUGINS) -+%.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) -+%.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 $@) -@@ -1505,11 +1540,13 @@ endif - $(cmd_crmodverdir) - $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ - $(build)=$(build-dir) --%/: prepare scripts FORCE -+%/: KBUILD_CFLAGS += $(GCC_PLUGINS) -+%/: 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) -+%.ko: gcc-plugins prepare scripts FORCE - $(cmd_crmodverdir) - $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ - $(build)=$(build-dir) $(@:.ko=.o) -diff -urNp linux-3.0.4/mm/filemap.c linux-3.0.4/mm/filemap.c ---- linux-3.0.4/mm/filemap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/filemap.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1763,7 +1763,7 @@ int generic_file_mmap(struct file * file - 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; -@@ -2169,6 +2169,7 @@ inline int generic_write_checks(struct f - *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 -urNp linux-3.0.4/mm/fremap.c linux-3.0.4/mm/fremap.c ---- linux-3.0.4/mm/fremap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/fremap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -156,6 +156,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsign - 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 -urNp linux-3.0.4/mm/highmem.c linux-3.0.4/mm/highmem.c ---- linux-3.0.4/mm/highmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/highmem.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/mm/huge_memory.c linux-3.0.4/mm/huge_memory.c ---- linux-3.0.4/mm/huge_memory.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/huge_memory.c 2011-08-23 21:47:56.000000000 -0400 -@@ -702,7 +702,7 @@ 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 -urNp linux-3.0.4/mm/hugetlb.c linux-3.0.4/mm/hugetlb.c ---- linux-3.0.4/mm/hugetlb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/hugetlb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2339,6 +2339,27 @@ static int unmap_ref_private(struct mm_s - 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. - */ -@@ -2440,6 +2461,11 @@ 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, -@@ -2591,6 +2617,10 @@ 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); -@@ -2620,6 +2650,10 @@ int hugetlb_fault(struct mm_struct *mm, - static DEFINE_MUTEX(hugetlb_instantiation_mutex); - struct hstate *h = hstate_vma(vma); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - ptep = huge_pte_offset(mm, address); - if (ptep) { - entry = huge_ptep_get(ptep); -@@ -2631,6 +2665,26 @@ int hugetlb_fault(struct mm_struct *mm, - 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 -urNp linux-3.0.4/mm/internal.h linux-3.0.4/mm/internal.h ---- linux-3.0.4/mm/internal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/internal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -49,6 +49,7 @@ extern void putback_lru_page(struct 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 -urNp linux-3.0.4/mm/Kconfig linux-3.0.4/mm/Kconfig ---- linux-3.0.4/mm/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -240,7 +240,7 @@ config KSM - config DEFAULT_MMAP_MIN_ADDR - int "Low address space to protect from user allocation" - depends on MMU -- default 4096 -+ 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 -diff -urNp linux-3.0.4/mm/kmemleak.c linux-3.0.4/mm/kmemleak.c ---- linux-3.0.4/mm/kmemleak.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/kmemleak.c 2011-08-23 21:48:14.000000000 -0400 -@@ -357,7 +357,7 @@ static void print_unreferenced(struct se - - 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 -urNp linux-3.0.4/mm/madvise.c linux-3.0.4/mm/madvise.c ---- linux-3.0.4/mm/madvise.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/madvise.c 2011-08-23 21:47:56.000000000 -0400 -@@ -45,6 +45,10 @@ static long madvise_behavior(struct vm_a - 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; -@@ -110,6 +114,13 @@ 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: -@@ -168,6 +179,11 @@ static long madvise_dontneed(struct vm_a - 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; -@@ -180,6 +196,21 @@ static long madvise_dontneed(struct vm_a - 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; - } - -@@ -376,6 +407,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, - 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 -urNp linux-3.0.4/mm/memory.c linux-3.0.4/mm/memory.c ---- linux-3.0.4/mm/memory.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/mm/memory.c 2011-08-23 21:47:56.000000000 -0400 -@@ -457,8 +457,12 @@ static inline void free_pmd_range(struct - 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, -@@ -489,9 +493,12 @@ static inline void free_pud_range(struct - 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 -+ - } - - /* -@@ -1577,12 +1584,6 @@ 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 -@@ -1655,10 +1656,10 @@ int __get_user_pages(struct task_struct - (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; -@@ -1706,7 +1707,7 @@ int __get_user_pages(struct task_struct - 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; -@@ -1733,11 +1734,6 @@ int __get_user_pages(struct task_struct - 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) -@@ -1811,7 +1807,7 @@ next_page: - start += PAGE_SIZE; - nr_pages--; - } while (nr_pages && start < vma->vm_end); -- } while (nr_pages); -+ } - return i; - } - EXPORT_SYMBOL(__get_user_pages); -@@ -2018,6 +2014,10 @@ static int insert_page(struct vm_area_st - 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; -@@ -2052,10 +2052,22 @@ 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); - } -@@ -2141,6 +2153,7 @@ int vm_insert_mixed(struct vm_area_struc - 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; -@@ -2456,6 +2469,186 @@ static inline void cow_user_page(struct - 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 -@@ -2667,6 +2860,12 @@ 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); -@@ -2718,6 +2917,10 @@ 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; -@@ -2997,6 +3200,11 @@ static int do_swap_page(struct mm_struct - 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) { - /* -@@ -3020,6 +3228,11 @@ static int do_swap_page(struct mm_struct - - /* 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: -@@ -3039,40 +3252,6 @@ 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. -@@ -3081,27 +3260,23 @@ static int do_anonymous_page(struct mm_s - 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); -@@ -3120,6 +3295,11 @@ static int do_anonymous_page(struct mm_s - 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: -@@ -3127,6 +3307,12 @@ 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; -@@ -3264,6 +3450,12 @@ static int __do_fault(struct mm_struct * - */ - /* 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) -@@ -3283,6 +3475,14 @@ static int __do_fault(struct mm_struct * - - /* 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 (charged) - mem_cgroup_uncharge_page(page); -@@ -3430,6 +3630,12 @@ int handle_pte_fault(struct mm_struct *m - 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; -@@ -3446,6 +3652,10 @@ int handle_mm_fault(struct mm_struct *mm - 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); -@@ -3457,6 +3667,34 @@ int handle_mm_fault(struct mm_struct *mm - 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) -@@ -3486,7 +3724,7 @@ int handle_mm_fault(struct mm_struct *mm - * 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))) -@@ -3590,7 +3828,7 @@ 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); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -diff -urNp linux-3.0.4/mm/memory-failure.c linux-3.0.4/mm/memory-failure.c ---- linux-3.0.4/mm/memory-failure.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/memory-failure.c 2011-08-23 21:47:56.000000000 -0400 -@@ -59,7 +59,7 @@ int sysctl_memory_failure_early_kill __r - - 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) - -@@ -1008,7 +1008,7 @@ int __memory_failure(unsigned long pfn, - } - - 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. -@@ -1038,7 +1038,7 @@ int __memory_failure(unsigned long pfn, - 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); -@@ -1096,7 +1096,7 @@ int __memory_failure(unsigned long pfn, - } - 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; -@@ -1222,7 +1222,7 @@ 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; - } -@@ -1236,7 +1236,7 @@ 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); -@@ -1349,7 +1349,7 @@ static int soft_offline_huge_page(struct - } - 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 */ -@@ -1480,7 +1480,7 @@ int soft_offline_page(struct page *page, - 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 -urNp linux-3.0.4/mm/mempolicy.c linux-3.0.4/mm/mempolicy.c ---- linux-3.0.4/mm/mempolicy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/mempolicy.c 2011-08-23 21:48:14.000000000 -0400 -@@ -639,6 +639,10 @@ static int mbind_range(struct mm_struct - unsigned long vmstart; - unsigned long vmend; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - vma = find_vma_prev(mm, start, &prev); - if (!vma || vma->vm_start > start) - return -EFAULT; -@@ -669,6 +673,16 @@ static int mbind_range(struct mm_struct - err = policy_vma(vma, new_pol); - if (err) - goto out; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ err = policy_vma(vma_m, new_pol); -+ if (err) -+ goto out; -+ } -+#endif -+ - } - - out: -@@ -1102,6 +1116,17 @@ static long do_mbind(unsigned long start - - 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; - -@@ -1320,6 +1345,14 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pi - if (!mm) - goto out; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (mm != current->mm && -+ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { -+ err = -EPERM; -+ goto out; -+ } -+#endif -+ - /* - * Check if this process has the right to modify the specified - * process. The right exists if the process has administrative -@@ -1329,8 +1362,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pi - rcu_read_lock(); - 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; -diff -urNp linux-3.0.4/mm/migrate.c linux-3.0.4/mm/migrate.c ---- linux-3.0.4/mm/migrate.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/migrate.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1124,6 +1124,8 @@ static int do_pages_move(struct mm_struc - unsigned long chunk_start; - int err; - -+ pax_track_stack(); -+ - task_nodes = cpuset_mems_allowed(task); - - err = -ENOMEM; -@@ -1308,6 +1310,14 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, - if (!mm) - return -EINVAL; - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (mm != current->mm && -+ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { -+ err = -EPERM; -+ goto out; -+ } -+#endif -+ - /* - * Check if this process has the right to modify the specified - * process. The right exists if the process has administrative -@@ -1317,8 +1327,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, - rcu_read_lock(); - 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; -diff -urNp linux-3.0.4/mm/mlock.c linux-3.0.4/mm/mlock.c ---- linux-3.0.4/mm/mlock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/mlock.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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/module.h> - #include <linux/rmap.h> -@@ -377,6 +378,9 @@ static int do_mlock(unsigned long start, - return -EINVAL; - if (end == start) - return 0; -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - vma = find_vma_prev(current->mm, start, &prev); - if (!vma || vma->vm_start > start) - return -ENOMEM; -@@ -387,6 +391,11 @@ static int do_mlock(unsigned long start, - 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; -@@ -492,6 +501,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st - 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); -@@ -515,17 +525,23 @@ SYSCALL_DEFINE2(munlock, unsigned long, - 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; -@@ -557,6 +573,7 @@ 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 -urNp linux-3.0.4/mm/mmap.c linux-3.0.4/mm/mmap.c ---- linux-3.0.4/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/mmap.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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_struc - * 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. -@@ -236,6 +256,7 @@ static struct vm_area_struct *remove_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) { -@@ -280,6 +301,7 @@ 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; -@@ -697,6 +719,12 @@ 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) -@@ -716,6 +744,12 @@ 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; -@@ -758,13 +792,20 @@ can_vma_merge_after(struct vm_area_struc - 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. -@@ -780,6 +821,15 @@ struct vm_area_struct *vma_merge(struct - 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? - */ -@@ -799,9 +849,24 @@ struct vm_area_struct *vma_merge(struct - /* 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); -@@ -815,12 +880,27 @@ struct vm_area_struct *vma_merge(struct - 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); -@@ -929,14 +1009,11 @@ 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; -@@ -963,7 +1040,7 @@ unsigned long do_mmap_pgoff(struct file - * (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; - -@@ -989,7 +1066,7 @@ unsigned long do_mmap_pgoff(struct file - /* 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; - -@@ -1000,6 +1077,36 @@ unsigned long do_mmap_pgoff(struct file - 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; -@@ -1011,6 +1118,7 @@ unsigned long do_mmap_pgoff(struct file - 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; - } -@@ -1081,6 +1189,9 @@ unsigned long do_mmap_pgoff(struct file - if (error) - return error; - -+ if (!gr_acl_handle_mmap(file, prot)) -+ return -EACCES; -+ - return mmap_region(file, addr, len, flags, vm_flags, pgoff); - } - EXPORT_SYMBOL(do_mmap_pgoff); -@@ -1161,7 +1272,7 @@ int vma_wants_writenotify(struct vm_area - 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? */ -@@ -1210,14 +1321,24 @@ unsigned long mmap_region(struct file *f - 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. */ -@@ -1266,6 +1387,16 @@ 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; -@@ -1289,6 +1420,19 @@ 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); - -@@ -1324,6 +1468,11 @@ 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); -@@ -1332,6 +1481,7 @@ 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); -@@ -1349,6 +1499,12 @@ 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) -@@ -1356,6 +1512,44 @@ 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. - * -@@ -1382,18 +1576,23 @@ arch_get_unmapped_area(struct file *filp - 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: -@@ -1404,34 +1603,40 @@ 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; - mm->cached_hole_size = ~0UL; - } -@@ -1449,7 +1654,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -1458,13 +1663,18 @@ arch_get_unmapped_area_topdown(struct fi - 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 */ -@@ -1479,7 +1689,7 @@ arch_get_unmapped_area_topdown(struct fi - /* make sure it can fit in the remaining address space */ - if (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); - } -@@ -1496,7 +1706,7 @@ arch_get_unmapped_area_topdown(struct fi - * 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); - -@@ -1505,8 +1715,8 @@ arch_get_unmapped_area_topdown(struct fi - 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)); - - bottomup: - /* -@@ -1515,13 +1725,21 @@ 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; -@@ -1530,6 +1748,12 @@ bottomup: - - 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? - */ -@@ -1537,8 +1761,10 @@ void arch_unmap_area_topdown(struct mm_s - 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 -@@ -1646,6 +1872,28 @@ out: - return prev ? prev->vm_next : 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 -@@ -1662,6 +1910,7 @@ static int acct_stack_growth(struct vm_a - return -ENOMEM; - - /* Stack limit test */ -+ gr_learn_resource(current, RLIMIT_STACK, size, 1); - if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) - return -ENOMEM; - -@@ -1672,6 +1921,7 @@ static int acct_stack_growth(struct vm_a - 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; - } -@@ -1702,37 +1952,48 @@ static int acct_stack_growth(struct vm_a - * 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; -@@ -1747,6 +2008,8 @@ int expand_upwards(struct vm_area_struct - } - } - } -+ if (locknext) -+ vma_unlock_anon_vma(vma->vm_next); - vma_unlock_anon_vma(vma); - khugepaged_enter_vma_merge(vma); - return error; -@@ -1760,6 +2023,8 @@ int expand_downwards(struct vm_area_stru - unsigned long address) - { - int error; -+ bool lockprev = false; -+ struct vm_area_struct *prev; - - /* - * We must make sure the anon_vma is allocated -@@ -1773,6 +2038,15 @@ int expand_downwards(struct vm_area_stru - 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); - - /* -@@ -1782,9 +2056,17 @@ int expand_downwards(struct vm_area_stru - */ - - /* 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; - -@@ -1794,11 +2076,22 @@ int expand_downwards(struct vm_area_stru - 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; - } -@@ -1868,6 +2161,13 @@ static void remove_vma_list(struct mm_st - 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); -@@ -1913,6 +2213,16 @@ detach_vmas_to_be_unmapped(struct mm_str - 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; -@@ -1941,14 +2251,33 @@ static int __split_vma(struct mm_struct - 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; - -@@ -1961,6 +2290,22 @@ static int __split_vma(struct mm_struct - 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); -@@ -1986,6 +2331,42 @@ static int __split_vma(struct mm_struct - 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; -@@ -1998,10 +2379,18 @@ static int __split_vma(struct mm_struct - 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; -@@ -2014,6 +2403,15 @@ static int __split_vma(struct mm_struct - 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; - -@@ -2025,11 +2423,30 @@ int split_vma(struct mm_struct *mm, stru - * 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; - -@@ -2104,6 +2521,8 @@ int do_munmap(struct mm_struct *mm, unsi - /* Fix up all other VM information */ - remove_vma_list(mm, vma); - -+ track_exec_limit(mm, start, end, 0UL); -+ - return 0; - } - -@@ -2116,22 +2535,18 @@ SYSCALL_DEFINE2(munmap, unsigned long, a - - profile_munmap(addr); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && -+ (len > SEGMEXEC_TASK_SIZE || addr > SEGMEXEC_TASK_SIZE-len)) -+ return -EINVAL; -+#endif -+ - down_write(&mm->mmap_sem); - ret = do_munmap(mm, addr, len); - up_write(&mm->mmap_sem); - return ret; - } - --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 -@@ -2145,6 +2560,7 @@ unsigned long do_brk(unsigned long addr, - struct rb_node ** rb_link, * rb_parent; - pgoff_t pgoff = addr >> PAGE_SHIFT; - int error; -+ unsigned long charged; - - len = PAGE_ALIGN(len); - if (!len) -@@ -2156,16 +2572,30 @@ unsigned long do_brk(unsigned long addr, - - 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; -@@ -2182,22 +2612,22 @@ unsigned long do_brk(unsigned long addr, - /* - * 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(len >> PAGE_SHIFT)) -+ if (security_vm_enough_memory(charged)) - return -ENOMEM; - - /* Can we just expand an old private anonymous mapping? */ -@@ -2211,7 +2641,7 @@ unsigned long do_brk(unsigned long addr, - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!vma) { -- vm_unacct_memory(len >> PAGE_SHIFT); -+ vm_unacct_memory(charged); - return -ENOMEM; - } - -@@ -2225,11 +2655,12 @@ unsigned long do_brk(unsigned long addr, - 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; - } - -@@ -2276,8 +2707,10 @@ 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); - } -@@ -2291,6 +2724,13 @@ int insert_vm_struct(struct mm_struct * - 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 -@@ -2313,7 +2753,22 @@ int insert_vm_struct(struct mm_struct * - 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; - } - -@@ -2331,6 +2786,8 @@ struct vm_area_struct *copy_vma(struct v - struct rb_node **rb_link, *rb_parent; - struct mempolicy *pol; - -+ 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. -@@ -2381,6 +2838,39 @@ struct vm_area_struct *copy_vma(struct v - 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 -@@ -2391,7 +2881,7 @@ int may_expand_vm(struct mm_struct *mm, - unsigned long lim; - - lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT; -- -+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1); - if (cur + npages > lim) - return 0; - return 1; -@@ -2462,6 +2952,22 @@ int install_special_mapping(struct mm_st - 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 -urNp linux-3.0.4/mm/mprotect.c linux-3.0.4/mm/mprotect.c ---- linux-3.0.4/mm/mprotect.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/mprotect.c 2011-08-23 21:48:14.000000000 -0400 -@@ -23,10 +23,16 @@ - #include <linux/mmu_notifier.h> - #include <linux/migrate.h> - #include <linux/perf_event.h> -+ -+#ifdef CONFIG_PAX_MPROTECT -+#include <linux/elf.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 +147,48 @@ static void change_protection(struct vm_ - 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 +201,29 @@ mprotect_fixup(struct vm_area_struct *vm - 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 +240,42 @@ mprotect_fixup(struct vm_area_struct *vm - } - } - -+#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 +306,21 @@ 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 +362,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - 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 +380,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - /* - * 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); -@@ -287,6 +412,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - 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; - -@@ -296,6 +426,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - - /* 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; - } -@@ -310,6 +448,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - 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 -urNp linux-3.0.4/mm/mremap.c linux-3.0.4/mm/mremap.c ---- linux-3.0.4/mm/mremap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/mremap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -113,6 +113,12 @@ static void move_ptes(struct vm_area_str - continue; - pte = ptep_clear_flush(vma, 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); - } - -@@ -272,6 +278,11 @@ static struct vm_area_struct *vma_to_res - 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; -@@ -328,20 +339,25 @@ static unsigned long mremap_to(unsigned - 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); -@@ -413,6 +429,7 @@ unsigned long do_mremap(unsigned long ad - 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; -@@ -431,6 +448,17 @@ unsigned long do_mremap(unsigned long ad - 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); -@@ -480,6 +508,7 @@ unsigned long do_mremap(unsigned long ad - addr + new_len); - } - ret = addr; -+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags); - goto out; - } - } -@@ -506,7 +535,13 @@ unsigned long do_mremap(unsigned long ad - 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 -urNp linux-3.0.4/mm/nobootmem.c linux-3.0.4/mm/nobootmem.c ---- linux-3.0.4/mm/nobootmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/nobootmem.c 2011-08-23 21:47:56.000000000 -0400 -@@ -110,19 +110,30 @@ static void __init __free_pages_memory(u - unsigned long __init free_all_memory_core_early(int nodeid) - { - int i; -- u64 start, end; -+ u64 start, end, startrange, endrange; - unsigned long count = 0; -- struct range *range = NULL; -+ struct range *range = NULL, rangerange = { 0, 0 }; - int nr_range; - - nr_range = get_free_all_memory_range(&range, nodeid); -+ startrange = __pa(range) >> PAGE_SHIFT; -+ endrange = (__pa(range + nr_range) - 1) >> PAGE_SHIFT; - - for (i = 0; i < nr_range; i++) { - start = range[i].start; - end = range[i].end; -+ if (start <= endrange && startrange < end) { -+ BUG_ON(rangerange.start | rangerange.end); -+ rangerange = range[i]; -+ continue; -+ } - count += end - start; - __free_pages_memory(start, end); - } -+ start = rangerange.start; -+ end = rangerange.end; -+ count += end - start; -+ __free_pages_memory(start, end); - - return count; - } -diff -urNp linux-3.0.4/mm/nommu.c linux-3.0.4/mm/nommu.c ---- linux-3.0.4/mm/nommu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/nommu.c 2011-08-23 21:47:56.000000000 -0400 -@@ -63,7 +63,6 @@ int sysctl_overcommit_memory = OVERCOMMI - 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; - -@@ -826,15 +825,6 @@ struct vm_area_struct *find_vma(struct m - 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 - */ -@@ -1554,6 +1544,7 @@ int split_vma(struct mm_struct *mm, stru - - /* 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 -urNp linux-3.0.4/mm/page_alloc.c linux-3.0.4/mm/page_alloc.c ---- linux-3.0.4/mm/page_alloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/page_alloc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -340,7 +340,7 @@ 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)); - } -@@ -653,6 +653,10 @@ static bool free_pages_prepare(struct pa - int i; - int bad = 0; - -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ unsigned long index = 1UL << order; -+#endif -+ - trace_mm_page_free_direct(page, order); - kmemcheck_free_shadow(page, order); - -@@ -668,6 +672,12 @@ static bool free_pages_prepare(struct pa - 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); - -@@ -783,8 +793,10 @@ static int prep_new_page(struct page *pa - 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); -@@ -2525,6 +2537,8 @@ void show_free_areas(unsigned int filter - int cpu; - struct zone *zone; - -+ pax_track_stack(); -+ - for_each_populated_zone(zone) { - if (skip_free_areas_node(filter, zone_to_nid(zone))) - continue; -diff -urNp linux-3.0.4/mm/percpu.c linux-3.0.4/mm/percpu.c ---- linux-3.0.4/mm/percpu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/percpu.c 2011-08-23 21:47:56.000000000 -0400 -@@ -121,7 +121,7 @@ static unsigned int pcpu_first_unit_cpu - static unsigned int pcpu_last_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 -urNp linux-3.0.4/mm/rmap.c linux-3.0.4/mm/rmap.c ---- linux-3.0.4/mm/rmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/rmap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -153,6 +153,10 @@ int anon_vma_prepare(struct vm_area_stru - 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; -@@ -162,6 +166,12 @@ int anon_vma_prepare(struct vm_area_stru - 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) { -@@ -175,6 +185,21 @@ int anon_vma_prepare(struct vm_area_stru - /* 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; -+ avc_m->anon_vma = anon_vma; -+ avc_m->vma = vma; -+ list_add(&avc_m->same_vma, &vma_m->anon_vma_chain); -+ list_add(&avc_m->same_anon_vma, &anon_vma->head); -+ avc_m = NULL; -+ } -+#endif -+ - vma->anon_vma = anon_vma; - avc->anon_vma = anon_vma; - avc->vma = vma; -@@ -188,12 +213,24 @@ int anon_vma_prepare(struct vm_area_stru - - 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; -@@ -244,7 +281,7 @@ static void anon_vma_chain_link(struct v - * 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; -@@ -277,7 +314,7 @@ int anon_vma_clone(struct vm_area_struct - * 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 -urNp linux-3.0.4/mm/shmem.c linux-3.0.4/mm/shmem.c ---- linux-3.0.4/mm/shmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/shmem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -31,7 +31,7 @@ - #include <linux/percpu_counter.h> - #include <linux/swap.h> - --static struct vfsmount *shm_mnt; -+struct vfsmount *shm_mnt; - - #ifdef CONFIG_SHMEM - /* -@@ -1101,6 +1101,8 @@ static int shmem_writepage(struct page * - goto unlock; - } - entry = shmem_swp_entry(info, index, NULL); -+ if (!entry) -+ goto unlock; - if (entry->val) { - /* - * The more uptodate page coming down from a stacked -@@ -1172,6 +1174,8 @@ static struct page *shmem_swapin(swp_ent - struct vm_area_struct pvma; - struct page *page; - -+ pax_track_stack(); -+ - spol = mpol_cond_copy(&mpol, - mpol_shared_policy_lookup(&info->policy, idx)); - -@@ -2568,8 +2572,7 @@ int shmem_fill_super(struct super_block - 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 -urNp linux-3.0.4/mm/slab.c linux-3.0.4/mm/slab.c ---- linux-3.0.4/mm/slab.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/slab.c 2011-08-23 21:48:14.000000000 -0400 -@@ -151,7 +151,7 @@ - - /* 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 | \ -@@ -159,7 +159,7 @@ - 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 | \ -@@ -288,7 +288,7 @@ 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) -@@ -389,10 +389,10 @@ static void kmem_list3_init(struct kmem_ - 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) -@@ -538,7 +538,7 @@ static inline void *index_to_obj(struct - * 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); -@@ -564,7 +564,7 @@ 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 - }; - -@@ -1530,7 +1530,7 @@ 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) { -@@ -1538,7 +1538,7 @@ 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); - } - -@@ -1556,7 +1556,7 @@ 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 -@@ -4272,10 +4272,10 @@ static int s_show(struct seq_file *m, vo - } - /* 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); -@@ -4532,15 +4532,66 @@ static const struct file_operations proc - - static int __init slab_proc_init(void) - { -- proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations); -+ mode_t gr_mode = S_IRUGO; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ gr_mode = S_IRUSR; -+#endif -+ -+ proc_create("slabinfo",S_IWUSR|gr_mode,NULL,&proc_slabinfo_operations); - #ifdef CONFIG_DEBUG_SLAB_LEAK -- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); -+ proc_create("slab_allocators", gr_mode, 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; -+ -+ if (!n) -+ return; -+ -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ page = virt_to_head_page(ptr); -+ -+ if (!PageSlab(page)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ cachep = page_get_cache(page); -+ 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, cachep ? cachep->name : NULL); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - /** - * ksize - get the actual amount of memory allocated for a given object - * @objp: Pointer to the object -diff -urNp linux-3.0.4/mm/slob.c linux-3.0.4/mm/slob.c ---- linux-3.0.4/mm/slob.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/slob.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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(struc - - 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_ - /* - * 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, i - if (!page) - return NULL; - -+ set_slob_page(page); - return page_address(page); - } - -@@ -370,11 +373,11 @@ static void *slob_alloc(size_t size, gfp - 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; - - lockdep_trace_alloc(gfp); -@@ -492,7 +494,10 @@ void *__kmalloc_node(size_t size, gfp_t - - 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, -@@ -504,16 +509,25 @@ void *__kmalloc_node(size_t size, gfp_t - 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); -@@ -531,13 +545,88 @@ 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; -+ -+ if (!n) -+ return; -+ -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ sp = slob_page(ptr); -+ if (!PageSlab((struct page*)sp)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ 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, NULL); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - /* can't use ksize for kmem_cache_alloc memory, only kmalloc */ - size_t ksize(const void *block) - { -@@ -550,10 +639,10 @@ 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); - -@@ -569,8 +658,13 @@ struct kmem_cache *kmem_cache_create(con - { - 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; -@@ -608,17 +702,25 @@ void *kmem_cache_alloc_node(struct kmem_ - { - void *b; - -+#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); -@@ -630,10 +732,16 @@ 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) -@@ -646,17 +754,31 @@ static void kmem_rcu_free(struct rcu_hea - - 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 -urNp linux-3.0.4/mm/slub.c linux-3.0.4/mm/slub.c ---- linux-3.0.4/mm/slub.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/slub.c 2011-09-25 22:15:40.000000000 -0400 -@@ -200,7 +200,7 @@ 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 *); -@@ -442,7 +442,7 @@ static void print_track(const char *s, s - 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); - } - -@@ -2137,6 +2137,8 @@ void kmem_cache_free(struct kmem_cache * - - page = virt_to_head_page(x); - -+ BUG_ON(!PageSlab(page)); -+ - slab_free(s, page, x, _RET_IP_); - - trace_kmem_cache_free(_RET_IP_, x); -@@ -2170,7 +2172,7 @@ 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. -@@ -2594,7 +2596,7 @@ static int kmem_cache_open(struct kmem_c - * list to avoid pounding the page allocator excessively. - */ - set_min_partial(s, ilog2(s->size)); -- s->refcount = 1; -+ atomic_set(&s->refcount, 1); - #ifdef CONFIG_NUMA - s->remote_node_defrag_ratio = 1000; - #endif -@@ -2699,8 +2701,7 @@ static inline int kmem_cache_close(struc - 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); - if (kmem_cache_close(s)) { - printk(KERN_ERR "SLUB %s: %s called for cache that " -@@ -2910,6 +2911,46 @@ void *__kmalloc_node(size_t size, gfp_t - 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; -+ -+ if (!n) -+ return; -+ -+ if (ZERO_OR_NULL_PTR(ptr)) -+ goto report; -+ -+ if (!virt_addr_valid(ptr)) -+ return; -+ -+ page = virt_to_head_page(ptr); -+ -+ if (!PageSlab(page)) { -+ if (object_is_on_stack(ptr, n) == -1) -+ goto report; -+ return; -+ } -+ -+ s = page->slab; -+ 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, s ? s->name : NULL); -+#endif -+ -+} -+EXPORT_SYMBOL(check_object_size); -+ - size_t ksize(const void *object) - { - struct page *page; -@@ -3154,7 +3195,7 @@ static void __init kmem_cache_bootstrap_ - 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); -@@ -3271,17 +3312,17 @@ 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++; - } - -@@ -3349,7 +3390,7 @@ static int slab_unmergeable(struct kmem_ - /* - * 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; -@@ -3408,7 +3449,7 @@ struct kmem_cache *kmem_cache_create(con - 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. -@@ -3417,7 +3458,7 @@ struct kmem_cache *kmem_cache_create(con - 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); -@@ -3545,7 +3586,7 @@ void *__kmalloc_node_track_caller(size_t - } - #endif - --#ifdef CONFIG_SYSFS -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int count_inuse(struct page *page) - { - return page->inuse; -@@ -3935,12 +3976,12 @@ 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 */ -@@ -4150,7 +4191,7 @@ 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); - -@@ -4662,6 +4703,7 @@ static char *create_unique_id(struct kme - return name; - } - -+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) - static int sysfs_slab_add(struct kmem_cache *s) - { - int err; -@@ -4724,6 +4766,7 @@ static void sysfs_slab_remove(struct kme - kobject_del(&s->kobj); - kobject_put(&s->kobj); - } -+#endif - - /* - * Need to buffer aliases during bootup until sysfs becomes -@@ -4737,6 +4780,7 @@ 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; -@@ -4759,6 +4803,7 @@ static int sysfs_slab_alias(struct kmem_ - alias_list = al; - return 0; - } -+#endif - - static int __init slab_sysfs_init(void) - { -@@ -4894,7 +4939,13 @@ static const struct file_operations proc - - static int __init slab_proc_init(void) - { -- proc_create("slabinfo", S_IRUGO, NULL, &proc_slabinfo_operations); -+ mode_t gr_mode = S_IRUGO; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ gr_mode = S_IRUSR; -+#endif -+ -+ proc_create("slabinfo", gr_mode, NULL, &proc_slabinfo_operations); - return 0; - } - module_init(slab_proc_init); -diff -urNp linux-3.0.4/mm/swap.c linux-3.0.4/mm/swap.c ---- linux-3.0.4/mm/swap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/swap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -31,6 +31,7 @@ - #include <linux/backing-dev.h> - #include <linux/memcontrol.h> - #include <linux/gfp.h> -+#include <linux/hugetlb.h> - - #include "internal.h" - -@@ -71,6 +72,8 @@ static void __put_compound_page(struct p - - __page_cache_release(page); - dtor = get_compound_page_dtor(page); -+ if (!PageHuge(page)) -+ BUG_ON(dtor != free_compound_page); - (*dtor)(page); - } - -diff -urNp linux-3.0.4/mm/swapfile.c linux-3.0.4/mm/swapfile.c ---- linux-3.0.4/mm/swapfile.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/swapfile.c 2011-08-23 21:47:56.000000000 -0400 -@@ -62,7 +62,7 @@ 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 __us - } - 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: -@@ -1692,8 +1692,8 @@ static unsigned swaps_poll(struct file * - - poll_wait(file, &proc_poll_wait, wait); - -- if (s->event != atomic_read(&proc_poll_event)) { -- s->event = atomic_read(&proc_poll_event); -+ if (s->event != atomic_read_unchecked(&proc_poll_event)) { -+ s->event = atomic_read_unchecked(&proc_poll_event); - return POLLIN | POLLRDNORM | POLLERR | POLLPRI; - } - -@@ -1799,7 +1799,7 @@ static int swaps_open(struct inode *inod - } - - s->seq.private = s; -- s->event = atomic_read(&proc_poll_event); -+ s->event = atomic_read_unchecked(&proc_poll_event); - return ret; - } - -@@ -2133,7 +2133,7 @@ SYSCALL_DEFINE2(swapon, const char __use - (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 -urNp linux-3.0.4/mm/util.c linux-3.0.4/mm/util.c ---- linux-3.0.4/mm/util.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/util.c 2011-08-23 21:47:56.000000000 -0400 -@@ -114,6 +114,7 @@ EXPORT_SYMBOL(memdup_user); - * allocated buffer. Use this if you don't want to free the buffer immediately - * like, for example, with RCU. - */ -+#undef __krealloc - void *__krealloc(const void *p, size_t new_size, gfp_t flags) - { - void *ret; -@@ -147,6 +148,7 @@ EXPORT_SYMBOL(__krealloc); - * behaves exactly like kmalloc(). If @size is 0 and @p is not a - * %NULL pointer, the object pointed to is freed. - */ -+#undef krealloc - void *krealloc(const void *p, size_t new_size, gfp_t flags) - { - void *ret; -@@ -243,6 +245,12 @@ void __vma_link_list(struct mm_struct *m - 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 -urNp linux-3.0.4/mm/vmalloc.c linux-3.0.4/mm/vmalloc.c ---- linux-3.0.4/mm/vmalloc.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/mm/vmalloc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, - - 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, un - 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, un - 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, -@@ -191,11 +216,20 @@ int is_vmalloc_or_module_addr(const void - * 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 - - 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; - -@@ -1297,6 +1337,16 @@ static struct vm_struct *__get_vm_area_n - 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); - -@@ -1515,6 +1565,11 @@ void *vmap(struct page **pages, unsigned - 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) -@@ -1616,6 +1671,13 @@ void *__vmalloc_node_range(unsigned long - if (!size || (size >> PAGE_SHIFT) > totalram_pages) - return NULL; - -+#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_KERNEXEC, VMALLOC_START, VMALLOC_END, -+ node, gfp_mask, caller); -+ else -+#endif -+ - area = __get_vm_area_node(size, align, VM_ALLOC, start, end, node, - gfp_mask, caller); - -@@ -1655,6 +1717,7 @@ static void *__vmalloc_node(unsigned lon - gfp_mask, prot, node, caller); - } - -+#undef __vmalloc - void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) - { - return __vmalloc_node(size, 1, gfp_mask, prot, -1, -@@ -1678,6 +1741,7 @@ static inline void *__vmalloc_node_flags - * For tight control over page level allocator and protection flags - * use __vmalloc() instead. - */ -+#undef vmalloc - void *vmalloc(unsigned long size) - { - return __vmalloc_node_flags(size, -1, GFP_KERNEL | __GFP_HIGHMEM); -@@ -1694,6 +1758,7 @@ EXPORT_SYMBOL(vmalloc); - * For tight control over page level allocator and protection flags - * use __vmalloc() instead. - */ -+#undef vzalloc - void *vzalloc(unsigned long size) - { - return __vmalloc_node_flags(size, -1, -@@ -1708,6 +1773,7 @@ EXPORT_SYMBOL(vzalloc); - * The resulting memory area is zeroed so it can be mapped to userspace - * without leaking data. - */ -+#undef vmalloc_user - void *vmalloc_user(unsigned long size) - { - struct vm_struct *area; -@@ -1735,6 +1801,7 @@ EXPORT_SYMBOL(vmalloc_user); - * For tight control over page level allocator and protection flags - * use __vmalloc() instead. - */ -+#undef vmalloc_node - void *vmalloc_node(unsigned long size, int node) - { - return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL, -@@ -1754,6 +1821,7 @@ EXPORT_SYMBOL(vmalloc_node); - * For tight control over page level allocator and protection flags - * use __vmalloc_node() instead. - */ -+#undef vzalloc_node - void *vzalloc_node(unsigned long size, int node) - { - return __vmalloc_node_flags(size, node, -@@ -1776,10 +1844,10 @@ EXPORT_SYMBOL(vzalloc_node); - * For tight control over page level allocator and protection flags - * use __vmalloc() instead. - */ -- -+#undef vmalloc_exec - 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)); - } - -@@ -1798,6 +1866,7 @@ void *vmalloc_exec(unsigned long size) - * Allocate enough 32bit PA addressable pages to cover @size from the - * page level allocator and map them into contiguous kernel virtual space. - */ -+#undef vmalloc_32 - void *vmalloc_32(unsigned long size) - { - return __vmalloc_node(size, 1, GFP_VMALLOC32, PAGE_KERNEL, -@@ -1812,6 +1881,7 @@ EXPORT_SYMBOL(vmalloc_32); - * The resulting memory area is 32bit addressable and zeroed so it can be - * mapped to userspace without leaking data. - */ -+#undef vmalloc_32_user - void *vmalloc_32_user(unsigned long size) - { - struct vm_struct *area; -@@ -2074,6 +2144,8 @@ int remap_vmalloc_range(struct vm_area_s - 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; - -diff -urNp linux-3.0.4/mm/vmstat.c linux-3.0.4/mm/vmstat.c ---- linux-3.0.4/mm/vmstat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/mm/vmstat.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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]; -+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; - 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 -@@ -1207,10 +1207,20 @@ 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 -urNp linux-3.0.4/net/8021q/vlan.c linux-3.0.4/net/8021q/vlan.c ---- linux-3.0.4/net/8021q/vlan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/8021q/vlan.c 2011-08-23 21:47:56.000000000 -0400 -@@ -591,8 +591,7 @@ static int vlan_ioctl_handler(struct net - 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 -urNp linux-3.0.4/net/atm/atm_misc.c linux-3.0.4/net/atm/atm_misc.c ---- linux-3.0.4/net/atm/atm_misc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/atm_misc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int - 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_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 -urNp linux-3.0.4/net/atm/lec.h linux-3.0.4/net/atm/lec.h ---- linux-3.0.4/net/atm/lec.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/lec.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/atm/mpc.h linux-3.0.4/net/atm/mpc.h ---- linux-3.0.4/net/atm/mpc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/mpc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/atm/mpoa_caches.c linux-3.0.4/net/atm/mpoa_caches.c ---- linux-3.0.4/net/atm/mpoa_caches.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/mpoa_caches.c 2011-08-23 21:48:14.000000000 -0400 -@@ -255,6 +255,8 @@ static void check_resolving_entries(stru - struct timeval now; - struct k_message msg; - -+ pax_track_stack(); -+ - do_gettimeofday(&now); - - read_lock_bh(&client->ingress_lock); -diff -urNp linux-3.0.4/net/atm/proc.c linux-3.0.4/net/atm/proc.c ---- linux-3.0.4/net/atm/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/proc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *s - 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 -urNp linux-3.0.4/net/atm/resources.c linux-3.0.4/net/atm/resources.c ---- linux-3.0.4/net/atm/resources.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/atm/resources.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_ - 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 -urNp linux-3.0.4/net/batman-adv/hard-interface.c linux-3.0.4/net/batman-adv/hard-interface.c ---- linux-3.0.4/net/batman-adv/hard-interface.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/hard-interface.c 2011-08-23 21:47:56.000000000 -0400 -@@ -351,8 +351,8 @@ int hardif_enable_interface(struct hard_ - 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 -urNp linux-3.0.4/net/batman-adv/routing.c linux-3.0.4/net/batman-adv/routing.c ---- linux-3.0.4/net/batman-adv/routing.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/routing.c 2011-08-23 21:47:56.000000000 -0400 -@@ -627,7 +627,7 @@ void receive_bat_packet(struct ethhdr *e - 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_packet->flags & DIRECTLINK ? 1 : 0); - -diff -urNp linux-3.0.4/net/batman-adv/send.c linux-3.0.4/net/batman-adv/send.c ---- linux-3.0.4/net/batman-adv/send.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/send.c 2011-08-23 21:47:56.000000000 -0400 -@@ -279,7 +279,7 @@ void schedule_own_packet(struct hard_ifa - - /* change sequence number to network order */ - batman_packet->seqno = -- htonl((uint32_t)atomic_read(&hard_iface->seqno)); -+ htonl((uint32_t)atomic_read_unchecked(&hard_iface->seqno)); - - if (vis_server == VIS_TYPE_SERVER_SYNC) - batman_packet->flags |= VIS_SERVER; -@@ -293,7 +293,7 @@ void schedule_own_packet(struct hard_ifa - else - batman_packet->gw_flags = 0; - -- atomic_inc(&hard_iface->seqno); -+ atomic_inc_unchecked(&hard_iface->seqno); - - slide_own_bcast_window(hard_iface); - send_time = own_send_time(bat_priv); -diff -urNp linux-3.0.4/net/batman-adv/soft-interface.c linux-3.0.4/net/batman-adv/soft-interface.c ---- linux-3.0.4/net/batman-adv/soft-interface.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/soft-interface.c 2011-08-23 21:47:56.000000000 -0400 -@@ -628,7 +628,7 @@ int interface_tx(struct sk_buff *skb, st - - /* 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); - -@@ -830,7 +830,7 @@ struct net_device *softif_create(char *n - 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->tt_local_changed, 0); - - bat_priv->primary_if = NULL; -diff -urNp linux-3.0.4/net/batman-adv/types.h linux-3.0.4/net/batman-adv/types.h ---- linux-3.0.4/net/batman-adv/types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/types.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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; -@@ -142,7 +142,7 @@ 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; - char num_ifaces; -diff -urNp linux-3.0.4/net/batman-adv/unicast.c linux-3.0.4/net/batman-adv/unicast.c ---- linux-3.0.4/net/batman-adv/unicast.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/batman-adv/unicast.c 2011-08-23 21:47:56.000000000 -0400 -@@ -265,7 +265,7 @@ int frag_send_skb(struct sk_buff *skb, s - 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 -urNp linux-3.0.4/net/bridge/br_multicast.c linux-3.0.4/net/bridge/br_multicast.c ---- linux-3.0.4/net/bridge/br_multicast.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/bridge/br_multicast.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1485,7 +1485,7 @@ static int br_multicast_ipv6_rcv(struct - nexthdr = ip6h->nexthdr; - offset = ipv6_skip_exthdr(skb, sizeof(*ip6h), &nexthdr); - -- if (offset < 0 || nexthdr != IPPROTO_ICMPV6) -+ if (nexthdr != IPPROTO_ICMPV6) - return 0; - - /* Okay, we found ICMPv6 header */ -diff -urNp linux-3.0.4/net/bridge/netfilter/ebtables.c linux-3.0.4/net/bridge/netfilter/ebtables.c ---- linux-3.0.4/net/bridge/netfilter/ebtables.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/bridge/netfilter/ebtables.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1512,7 +1512,7 @@ static int do_ebt_get_ctl(struct sock *s - 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; -@@ -1780,6 +1780,8 @@ static int compat_copy_everything_to_use - int ret; - void __user *pos; - -+ pax_track_stack(); -+ - memset(&tinfo, 0, sizeof(tinfo)); - - if (cmd == EBT_SO_GET_ENTRIES) { -diff -urNp linux-3.0.4/net/caif/caif_socket.c linux-3.0.4/net/caif/caif_socket.c ---- linux-3.0.4/net/caif/caif_socket.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/caif/caif_socket.c 2011-08-23 21:47:56.000000000 -0400 -@@ -48,19 +48,20 @@ static struct dentry *debugfsdir; - #ifdef CONFIG_DEBUG_FS - struct debug_fs_counter { - atomic_t caif_nr_socks; -- atomic_t caif_sock_create; -- atomic_t num_connect_req; -- atomic_t num_connect_resp; -- atomic_t num_connect_fail_resp; -- atomic_t num_disconnect; -- atomic_t num_remote_shutdown_ind; -- atomic_t num_tx_flow_off_ind; -- atomic_t num_tx_flow_on_ind; -- atomic_t num_rx_flow_off; -- atomic_t num_rx_flow_on; -+ atomic_unchecked_t caif_sock_create; -+ atomic_unchecked_t num_connect_req; -+ atomic_unchecked_t num_connect_resp; -+ atomic_unchecked_t num_connect_fail_resp; -+ atomic_unchecked_t num_disconnect; -+ atomic_unchecked_t num_remote_shutdown_ind; -+ atomic_unchecked_t num_tx_flow_off_ind; -+ atomic_unchecked_t num_tx_flow_on_ind; -+ atomic_unchecked_t num_rx_flow_off; -+ atomic_unchecked_t num_rx_flow_on; - }; - static struct debug_fs_counter cnt; - #define dbfs_atomic_inc(v) atomic_inc_return(v) -+#define dbfs_atomic_inc_unchecked(v) atomic_inc_return_unchecked(v) - #define dbfs_atomic_dec(v) atomic_dec_return(v) - #else - #define dbfs_atomic_inc(v) 0 -@@ -161,7 +162,7 @@ static int caif_queue_rcv_skb(struct soc - atomic_read(&cf_sk->sk.sk_rmem_alloc), - sk_rcvbuf_lowwater(cf_sk)); - set_rx_flow_off(cf_sk); -- dbfs_atomic_inc(&cnt.num_rx_flow_off); -+ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_off); - caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); - } - -@@ -172,7 +173,7 @@ static int caif_queue_rcv_skb(struct soc - set_rx_flow_off(cf_sk); - if (net_ratelimit()) - pr_debug("sending flow OFF due to rmem_schedule\n"); -- dbfs_atomic_inc(&cnt.num_rx_flow_off); -+ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_off); - caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); - } - skb->dev = NULL; -@@ -233,14 +234,14 @@ static void caif_ctrl_cb(struct cflayer - switch (flow) { - case CAIF_CTRLCMD_FLOW_ON_IND: - /* OK from modem to start sending again */ -- dbfs_atomic_inc(&cnt.num_tx_flow_on_ind); -+ dbfs_atomic_inc_unchecked(&cnt.num_tx_flow_on_ind); - set_tx_flow_on(cf_sk); - cf_sk->sk.sk_state_change(&cf_sk->sk); - break; - - case CAIF_CTRLCMD_FLOW_OFF_IND: - /* Modem asks us to shut up */ -- dbfs_atomic_inc(&cnt.num_tx_flow_off_ind); -+ dbfs_atomic_inc_unchecked(&cnt.num_tx_flow_off_ind); - set_tx_flow_off(cf_sk); - cf_sk->sk.sk_state_change(&cf_sk->sk); - break; -@@ -249,7 +250,7 @@ static void caif_ctrl_cb(struct cflayer - /* We're now connected */ - caif_client_register_refcnt(&cf_sk->layer, - cfsk_hold, cfsk_put); -- dbfs_atomic_inc(&cnt.num_connect_resp); -+ dbfs_atomic_inc_unchecked(&cnt.num_connect_resp); - cf_sk->sk.sk_state = CAIF_CONNECTED; - set_tx_flow_on(cf_sk); - cf_sk->sk.sk_state_change(&cf_sk->sk); -@@ -263,7 +264,7 @@ static void caif_ctrl_cb(struct cflayer - - case CAIF_CTRLCMD_INIT_FAIL_RSP: - /* Connect request failed */ -- dbfs_atomic_inc(&cnt.num_connect_fail_resp); -+ dbfs_atomic_inc_unchecked(&cnt.num_connect_fail_resp); - cf_sk->sk.sk_err = ECONNREFUSED; - cf_sk->sk.sk_state = CAIF_DISCONNECTED; - cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; -@@ -277,7 +278,7 @@ static void caif_ctrl_cb(struct cflayer - - case CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND: - /* Modem has closed this connection, or device is down. */ -- dbfs_atomic_inc(&cnt.num_remote_shutdown_ind); -+ dbfs_atomic_inc_unchecked(&cnt.num_remote_shutdown_ind); - cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; - cf_sk->sk.sk_err = ECONNRESET; - set_rx_flow_on(cf_sk); -@@ -297,7 +298,7 @@ static void caif_check_flow_release(stru - return; - - if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) { -- dbfs_atomic_inc(&cnt.num_rx_flow_on); -+ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_on); - set_rx_flow_on(cf_sk); - caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ); - } -@@ -854,7 +855,7 @@ static int caif_connect(struct socket *s - /*ifindex = id of the interface.*/ - cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if; - -- dbfs_atomic_inc(&cnt.num_connect_req); -+ dbfs_atomic_inc_unchecked(&cnt.num_connect_req); - cf_sk->layer.receive = caif_sktrecv_cb; - - err = caif_connect_client(sock_net(sk), &cf_sk->conn_req, -@@ -943,7 +944,7 @@ static int caif_release(struct socket *s - spin_unlock_bh(&sk->sk_receive_queue.lock); - sock->sk = NULL; - -- dbfs_atomic_inc(&cnt.num_disconnect); -+ dbfs_atomic_inc_unchecked(&cnt.num_disconnect); - - WARN_ON(IS_ERR(cf_sk->debugfs_socket_dir)); - if (cf_sk->debugfs_socket_dir != NULL) -@@ -1122,7 +1123,7 @@ static int caif_create(struct net *net, - cf_sk->conn_req.protocol = protocol; - /* Increase the number of sockets created. */ - dbfs_atomic_inc(&cnt.caif_nr_socks); -- num = dbfs_atomic_inc(&cnt.caif_sock_create); -+ num = dbfs_atomic_inc_unchecked(&cnt.caif_sock_create); - #ifdef CONFIG_DEBUG_FS - if (!IS_ERR(debugfsdir)) { - -diff -urNp linux-3.0.4/net/caif/cfctrl.c linux-3.0.4/net/caif/cfctrl.c ---- linux-3.0.4/net/caif/cfctrl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/caif/cfctrl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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> -@@ -45,8 +46,8 @@ struct cflayer *cfctrl_create(void) - dev_info.id = 0xff; - memset(this, 0, sizeof(*this)); - 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; -@@ -132,8 +133,8 @@ static void cfctrl_insert_req(struct cfc - 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); - } -@@ -151,7 +152,7 @@ static struct cfctrl_request_info *cfctr - 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; -@@ -364,6 +365,7 @@ static int cfctrl_recv(struct cflayer *l - struct cfctrl *cfctrl = container_obj(layer); - struct cfctrl_request_info rsp, *req; - -+ pax_track_stack(); - - cfpkt_extr_head(pkt, &cmdrsp, 1); - cmd = cmdrsp & CFCTRL_CMD_MASK; -diff -urNp linux-3.0.4/net/core/datagram.c linux-3.0.4/net/core/datagram.c ---- linux-3.0.4/net/core/datagram.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/datagram.c 2011-08-23 21:47:56.000000000 -0400 -@@ -285,7 +285,7 @@ int skb_kill_datagram(struct sock *sk, s - } - - kfree_skb(skb); -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - sk_mem_reclaim_partial(sk); - - return err; -diff -urNp linux-3.0.4/net/core/dev.c linux-3.0.4/net/core/dev.c ---- linux-3.0.4/net/core/dev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/dev.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1125,10 +1125,14 @@ void dev_load(struct net *net, const cha - 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); -@@ -1959,7 +1963,7 @@ static int illegal_highdma(struct net_de - - struct dev_gso_cb { - void (*destructor)(struct sk_buff *skb); --}; -+} __no_const; - - #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb) - -@@ -2912,7 +2916,7 @@ 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); - -@@ -3761,7 +3765,7 @@ void netif_napi_del(struct napi_struct * - } - 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; -diff -urNp linux-3.0.4/net/core/flow.c linux-3.0.4/net/core/flow.c ---- linux-3.0.4/net/core/flow.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/flow.c 2011-08-23 21:47:56.000000000 -0400 -@@ -60,7 +60,7 @@ 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; -@@ -85,7 +85,7 @@ static void flow_cache_new_hashrnd(unsig - - 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; -@@ -253,7 +253,7 @@ flow_cache_lookup(struct net *net, const - 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; -@@ -274,7 +274,7 @@ 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 -urNp linux-3.0.4/net/core/rtnetlink.c linux-3.0.4/net/core/rtnetlink.c ---- linux-3.0.4/net/core/rtnetlink.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/rtnetlink.c 2011-08-23 21:47:56.000000000 -0400 -@@ -56,7 +56,7 @@ - struct rtnl_link { - rtnl_doit_func doit; - rtnl_dumpit_func dumpit; --}; -+} __no_const; - - static DEFINE_MUTEX(rtnl_mutex); - -diff -urNp linux-3.0.4/net/core/skbuff.c linux-3.0.4/net/core/skbuff.c ---- linux-3.0.4/net/core/skbuff.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/skbuff.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1543,6 +1543,8 @@ int skb_splice_bits(struct sk_buff *skb, - struct sock *sk = skb->sk; - int ret = 0; - -+ pax_track_stack(); -+ - if (splice_grow_spd(pipe, &spd)) - return -ENOMEM; - -diff -urNp linux-3.0.4/net/core/sock.c linux-3.0.4/net/core/sock.c ---- linux-3.0.4/net/core/sock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/core/sock.c 2011-08-23 21:48:14.000000000 -0400 -@@ -291,7 +291,7 @@ int sock_queue_rcv_skb(struct sock *sk, - */ - if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= - (unsigned)sk->sk_rcvbuf) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - return -ENOMEM; - } - -@@ -300,7 +300,7 @@ int sock_queue_rcv_skb(struct sock *sk, - return err; - - if (!sk_rmem_schedule(sk, skb->truesize)) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - return -ENOBUFS; - } - -@@ -320,7 +320,7 @@ int sock_queue_rcv_skb(struct sock *sk, - 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); - -@@ -340,7 +340,7 @@ int sk_receive_skb(struct sock *sk, stru - 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) -@@ -358,7 +358,7 @@ int sk_receive_skb(struct sock *sk, stru - 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; - } - -@@ -921,7 +921,7 @@ int sock_getsockopt(struct socket *sock, - 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; - } -@@ -934,7 +934,7 @@ int sock_getsockopt(struct socket *sock, - 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; - } -@@ -967,7 +967,7 @@ int sock_getsockopt(struct socket *sock, - - 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)) -@@ -2023,7 +2023,7 @@ void sock_init_data(struct socket *sock, - */ - 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 -urNp linux-3.0.4/net/decnet/sysctl_net_decnet.c linux-3.0.4/net/decnet/sysctl_net_decnet.c ---- linux-3.0.4/net/decnet/sysctl_net_decnet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/decnet/sysctl_net_decnet.c 2011-08-23 21:47:56.000000000 -0400 -@@ -173,7 +173,7 @@ static int dn_node_address_handler(ctl_t - - 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; -@@ -236,7 +236,7 @@ static int dn_def_dev_handler(ctl_table - - 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 -urNp linux-3.0.4/net/econet/Kconfig linux-3.0.4/net/econet/Kconfig ---- linux-3.0.4/net/econet/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/econet/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/ipv4/fib_frontend.c linux-3.0.4/net/ipv4/fib_frontend.c ---- linux-3.0.4/net/ipv4/fib_frontend.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/fib_frontend.c 2011-08-23 21:47:56.000000000 -0400 -@@ -970,12 +970,12 @@ static int fib_inetaddr_event(struct not - #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. -@@ -1011,7 +1011,7 @@ static int fib_netdev_event(struct notif - #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 -urNp linux-3.0.4/net/ipv4/fib_semantics.c linux-3.0.4/net/ipv4/fib_semantics.c ---- linux-3.0.4/net/ipv4/fib_semantics.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/fib_semantics.c 2011-08-23 21:47:56.000000000 -0400 -@@ -691,7 +691,7 @@ __be32 fib_info_update_nh_saddr(struct n - 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 -urNp linux-3.0.4/net/ipv4/inet_diag.c linux-3.0.4/net/ipv4/inet_diag.c ---- linux-3.0.4/net/ipv4/inet_diag.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/inet_diag.c 2011-08-23 21:48:14.000000000 -0400 -@@ -114,8 +114,14 @@ static int inet_csk_diag_fill(struct soc - r->idiag_retrans = 0; - - r->id.idiag_if = sk->sk_bound_dev_if; -+ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ r->id.idiag_cookie[0] = 0; -+ r->id.idiag_cookie[1] = 0; -+#else - r->id.idiag_cookie[0] = (u32)(unsigned long)sk; - r->id.idiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1); -+#endif - - r->id.idiag_sport = inet->inet_sport; - r->id.idiag_dport = inet->inet_dport; -@@ -201,8 +207,15 @@ static int inet_twsk_diag_fill(struct in - r->idiag_family = tw->tw_family; - r->idiag_retrans = 0; - r->id.idiag_if = tw->tw_bound_dev_if; -+ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ r->id.idiag_cookie[0] = 0; -+ r->id.idiag_cookie[1] = 0; -+#else - r->id.idiag_cookie[0] = (u32)(unsigned long)tw; - r->id.idiag_cookie[1] = (u32)(((unsigned long)tw >> 31) >> 1); -+#endif -+ - r->id.idiag_sport = tw->tw_sport; - r->id.idiag_dport = tw->tw_dport; - r->id.idiag_src[0] = tw->tw_rcv_saddr; -@@ -285,12 +298,14 @@ static int inet_diag_get_exact(struct sk - if (sk == NULL) - goto unlock; - -+#ifndef CONFIG_GRKERNSEC_HIDESYM - err = -ESTALE; - if ((req->id.idiag_cookie[0] != INET_DIAG_NOCOOKIE || - req->id.idiag_cookie[1] != INET_DIAG_NOCOOKIE) && - ((u32)(unsigned long)sk != req->id.idiag_cookie[0] || - (u32)((((unsigned long)sk) >> 31) >> 1) != req->id.idiag_cookie[1])) - goto out; -+#endif - - err = -ENOMEM; - rep = alloc_skb(NLMSG_SPACE((sizeof(struct inet_diag_msg) + -@@ -580,8 +595,14 @@ static int inet_diag_fill_req(struct sk_ - r->idiag_retrans = req->retrans; - - r->id.idiag_if = sk->sk_bound_dev_if; -+ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ r->id.idiag_cookie[0] = 0; -+ r->id.idiag_cookie[1] = 0; -+#else - r->id.idiag_cookie[0] = (u32)(unsigned long)req; - r->id.idiag_cookie[1] = (u32)(((unsigned long)req >> 31) >> 1); -+#endif - - tmo = req->expires - jiffies; - if (tmo < 0) -diff -urNp linux-3.0.4/net/ipv4/inet_hashtables.c linux-3.0.4/net/ipv4/inet_hashtables.c ---- linux-3.0.4/net/ipv4/inet_hashtables.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv4/inet_hashtables.c 2011-08-23 21:55:24.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/ipv4/inetpeer.c linux-3.0.4/net/ipv4/inetpeer.c ---- linux-3.0.4/net/ipv4/inetpeer.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv4/inetpeer.c 2011-08-23 21:48:14.000000000 -0400 -@@ -481,6 +481,8 @@ struct inet_peer *inet_getpeer(struct in - unsigned int sequence; - int invalidated, newrefcnt = 0; - -+ pax_track_stack(); -+ - /* Look up for the address quickly, lockless. - * Because of a concurrent writer, we might not find an existing entry. - */ -@@ -517,8 +519,8 @@ found: /* The existing node has been fo - if (p) { - p->daddr = *daddr; - atomic_set(&p->refcnt, 1); -- atomic_set(&p->rid, 0); -- atomic_set(&p->ip_id_count, secure_ip_id(daddr->addr.a4)); -+ atomic_set_unchecked(&p->rid, 0); -+ atomic_set_unchecked(&p->ip_id_count, secure_ip_id(daddr->addr.a4)); - p->tcp_ts_stamp = 0; - p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW; - p->rate_tokens = 0; -diff -urNp linux-3.0.4/net/ipv4/ip_fragment.c linux-3.0.4/net/ipv4/ip_fragment.c ---- linux-3.0.4/net/ipv4/ip_fragment.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/ip_fragment.c 2011-08-23 21:47:56.000000000 -0400 -@@ -315,7 +315,7 @@ static inline int ip_frag_too_far(struct - 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 -urNp linux-3.0.4/net/ipv4/ip_sockglue.c linux-3.0.4/net/ipv4/ip_sockglue.c ---- linux-3.0.4/net/ipv4/ip_sockglue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/ip_sockglue.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1073,6 +1073,8 @@ static int do_ip_getsockopt(struct sock - int val; - int len; - -+ pax_track_stack(); -+ - if (level != SOL_IP) - return -EOPNOTSUPP; - -@@ -1110,7 +1112,8 @@ static int do_ip_getsockopt(struct sock - 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; - } -diff -urNp linux-3.0.4/net/ipv4/netfilter/nf_nat_snmp_basic.c linux-3.0.4/net/ipv4/netfilter/nf_nat_snmp_basic.c ---- linux-3.0.4/net/ipv4/netfilter/nf_nat_snmp_basic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/netfilter/nf_nat_snmp_basic.c 2011-08-23 21:47:56.000000000 -0400 -@@ -399,7 +399,7 @@ static unsigned char asn1_octets_decode( - - *len = 0; - -- *octets = kmalloc(eoc - ctx->pointer, GFP_ATOMIC); -+ *octets = kmalloc((eoc - ctx->pointer), GFP_ATOMIC); - if (*octets == NULL) { - if (net_ratelimit()) - pr_notice("OOM in bsalg (%d)\n", __LINE__); -diff -urNp linux-3.0.4/net/ipv4/ping.c linux-3.0.4/net/ipv4/ping.c ---- linux-3.0.4/net/ipv4/ping.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/ping.c 2011-08-23 21:47:56.000000000 -0400 -@@ -837,7 +837,7 @@ static void ping_format_sock(struct sock - 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 -urNp linux-3.0.4/net/ipv4/raw.c linux-3.0.4/net/ipv4/raw.c ---- linux-3.0.4/net/ipv4/raw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/raw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -302,7 +302,7 @@ static int raw_rcv_skb(struct sock * sk, - 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; - } -@@ -736,16 +736,20 @@ 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; -@@ -755,8 +759,9 @@ static int raw_geticmpfilter(struct sock - 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; -@@ -984,7 +989,13 @@ static void raw_sock_seq_show(struct seq - 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 -urNp linux-3.0.4/net/ipv4/route.c linux-3.0.4/net/ipv4/route.c ---- linux-3.0.4/net/ipv4/route.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv4/route.c 2011-08-23 21:47:56.000000000 -0400 -@@ -304,7 +304,7 @@ static inline unsigned int rt_hash(__be3 - - 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 -@@ -833,7 +833,7 @@ static void rt_cache_invalidate(struct n - 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); - } - - /* -@@ -2834,7 +2834,7 @@ 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 -urNp linux-3.0.4/net/ipv4/tcp.c linux-3.0.4/net/ipv4/tcp.c ---- linux-3.0.4/net/ipv4/tcp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2122,6 +2122,8 @@ static int do_tcp_setsockopt(struct sock - int val; - int err = 0; - -+ pax_track_stack(); -+ - /* These are data/string values, all the others are ints */ - switch (optname) { - case TCP_CONGESTION: { -@@ -2501,6 +2503,8 @@ static int do_tcp_getsockopt(struct sock - struct tcp_sock *tp = tcp_sk(sk); - int val, len; - -+ pax_track_stack(); -+ - if (get_user(len, optlen)) - return -EFAULT; - -diff -urNp linux-3.0.4/net/ipv4/tcp_ipv4.c linux-3.0.4/net/ipv4/tcp_ipv4.c ---- linux-3.0.4/net/ipv4/tcp_ipv4.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp_ipv4.c 2011-08-23 21:48:14.000000000 -0400 -@@ -87,6 +87,9 @@ int sysctl_tcp_tw_reuse __read_mostly; - 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 struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, -@@ -1607,6 +1610,9 @@ int tcp_v4_do_rcv(struct sock *sk, struc - return 0; - - reset: -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole) -+#endif - tcp_v4_send_reset(rsk, skb); - discard: - kfree_skb(skb); -@@ -1669,12 +1675,19 @@ 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); -@@ -1724,6 +1737,10 @@ 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); - } - -@@ -2388,7 +2405,11 @@ static void get_openreq4(struct sock *sk - 0, /* non standard timer */ - 0, /* open_requests have no inode */ - atomic_read(&sk->sk_refcnt), -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ NULL, -+#else - req, -+#endif - len); - } - -@@ -2438,7 +2459,12 @@ static void get_tcp4_sock(struct sock *s - 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, -@@ -2466,7 +2492,13 @@ static void get_timewait4_sock(struct in - " %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 -urNp linux-3.0.4/net/ipv4/tcp_minisocks.c linux-3.0.4/net/ipv4/tcp_minisocks.c ---- linux-3.0.4/net/ipv4/tcp_minisocks.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp_minisocks.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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); - -@@ -745,6 +749,10 @@ 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 -urNp linux-3.0.4/net/ipv4/tcp_output.c linux-3.0.4/net/ipv4/tcp_output.c ---- linux-3.0.4/net/ipv4/tcp_output.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp_output.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2421,6 +2421,8 @@ struct sk_buff *tcp_make_synack(struct s - int mss; - int s_data_desired = 0; - -+ pax_track_stack(); -+ - if (cvp != NULL && cvp->s_data_constant && cvp->s_data_desired) - s_data_desired = cvp->s_data_desired; - skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15 + s_data_desired, 1, GFP_ATOMIC); -diff -urNp linux-3.0.4/net/ipv4/tcp_probe.c linux-3.0.4/net/ipv4/tcp_probe.c ---- linux-3.0.4/net/ipv4/tcp_probe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp_probe.c 2011-08-23 21:47:56.000000000 -0400 -@@ -202,7 +202,7 @@ static ssize_t tcpprobe_read(struct file - 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 -urNp linux-3.0.4/net/ipv4/tcp_timer.c linux-3.0.4/net/ipv4/tcp_timer.c ---- linux-3.0.4/net/ipv4/tcp_timer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/tcp_timer.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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; -@@ -199,6 +203,13 @@ static int tcp_write_timeout(struct sock - } - } - -+#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 -urNp linux-3.0.4/net/ipv4/udp.c linux-3.0.4/net/ipv4/udp.c ---- linux-3.0.4/net/ipv4/udp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv4/udp.c 2011-08-23 21:48:14.000000000 -0400 -@@ -86,6 +86,7 @@ - #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> -@@ -107,6 +108,10 @@ - #include <net/xfrm.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); - -@@ -564,6 +569,9 @@ 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 -@@ -855,9 +863,18 @@ int udp_sendmsg(struct kiocb *iocb, stru - 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. -@@ -1098,7 +1115,7 @@ static unsigned int first_packet_length( - 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); - } -@@ -1184,6 +1201,10 @@ try_again: - if (!skb) - goto out; - -+ err = gr_search_udp_recvmsg(sk, skb); -+ if (err) -+ goto out_free; -+ - ulen = skb->len - sizeof(struct udphdr); - if (len > ulen) - len = ulen; -@@ -1483,7 +1504,7 @@ int udp_queue_rcv_skb(struct sock *sk, s - - 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; - } -@@ -1502,7 +1523,7 @@ static void flush_stack(struct sock **st - 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, -@@ -1671,6 +1692,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, - 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); - - /* -@@ -2098,8 +2122,13 @@ static void udp4_format_sock(struct sock - 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 -urNp linux-3.0.4/net/ipv6/inet6_connection_sock.c linux-3.0.4/net/ipv6/inet6_connection_sock.c ---- linux-3.0.4/net/ipv6/inet6_connection_sock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv6/inet6_connection_sock.c 2011-08-23 21:47:56.000000000 -0400 -@@ -178,7 +178,7 @@ void __inet6_csk_dst_store(struct sock * - #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( - #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 -urNp linux-3.0.4/net/ipv6/ipv6_sockglue.c linux-3.0.4/net/ipv6/ipv6_sockglue.c ---- linux-3.0.4/net/ipv6/ipv6_sockglue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv6/ipv6_sockglue.c 2011-08-23 21:48:14.000000000 -0400 -@@ -129,6 +129,8 @@ static int do_ipv6_setsockopt(struct soc - int val, valbool; - int retv = -ENOPROTOOPT; - -+ pax_track_stack(); -+ - if (optval == NULL) - val=0; - else { -@@ -919,6 +921,8 @@ static int do_ipv6_getsockopt(struct soc - int len; - int val; - -+ pax_track_stack(); -+ - if (ip6_mroute_opt(optname)) - return ip6_mroute_getsockopt(sk, optname, optval, optlen); - -diff -urNp linux-3.0.4/net/ipv6/raw.c linux-3.0.4/net/ipv6/raw.c ---- linux-3.0.4/net/ipv6/raw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/ipv6/raw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -376,7 +376,7 @@ static inline int rawv6_rcv_skb(struct s - { - if ((raw6_sk(sk)->checksum || rcu_dereference_raw(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; - } -@@ -403,7 +403,7 @@ int rawv6_rcv(struct sock *sk, struct sk - 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; - } -@@ -427,7 +427,7 @@ int rawv6_rcv(struct sock *sk, struct sk - - 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; - } -@@ -601,7 +601,7 @@ 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) - { -@@ -742,6 +742,8 @@ static int rawv6_sendmsg(struct kiocb *i - u16 proto; - int err; - -+ pax_track_stack(); -+ - /* Rough check on arithmetic overflow, - better check is made in ip6_append_data(). - */ -@@ -909,12 +911,15 @@ 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; -@@ -927,6 +932,7 @@ static int rawv6_geticmpfilter(struct so - char __user *optval, int __user *optlen) - { - int len; -+ struct icmp6_filter filter; - - switch (optname) { - case ICMPV6_FILTER: -@@ -938,7 +944,8 @@ static int rawv6_geticmpfilter(struct so - 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: -@@ -1252,7 +1259,13 @@ static void raw6_sock_seq_show(struct se - 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 -urNp linux-3.0.4/net/ipv6/tcp_ipv6.c linux-3.0.4/net/ipv6/tcp_ipv6.c ---- linux-3.0.4/net/ipv6/tcp_ipv6.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv6/tcp_ipv6.c 2011-08-23 21:48:14.000000000 -0400 -@@ -93,6 +93,10 @@ static struct tcp_md5sig_key *tcp_v6_md5 - } - #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) { -@@ -1662,6 +1666,9 @@ static int tcp_v6_do_rcv(struct sock *sk - return 0; - - reset: -+#ifdef CONFIG_GRKERNSEC_BLACKHOLE -+ if (!grsec_enable_blackhole) -+#endif - tcp_v6_send_reset(sk, skb); - discard: - if (opt_skb) -@@ -1741,12 +1748,20 @@ static int tcp_v6_rcv(struct sk_buff *sk - 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); -@@ -1794,6 +1809,10 @@ 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); - } - -@@ -2054,7 +2073,13 @@ static void get_openreq6(struct seq_file - 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) -@@ -2104,7 +2129,12 @@ static void get_tcp6_sock(struct seq_fil - 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, -@@ -2139,7 +2169,13 @@ static void get_timewait6_sock(struct se - 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 -urNp linux-3.0.4/net/ipv6/udp.c linux-3.0.4/net/ipv6/udp.c ---- linux-3.0.4/net/ipv6/udp.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/ipv6/udp.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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; -@@ -548,7 +552,7 @@ int udpv6_queue_rcv_skb(struct sock * sk - - 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); -@@ -624,7 +628,7 @@ static void flush_stack(struct sock **st - 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), -@@ -779,6 +783,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, - 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); -@@ -795,7 +802,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, - 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; -@@ -1406,8 +1413,13 @@ static void udp6_sock_seq_show(struct se - 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 -urNp linux-3.0.4/net/irda/ircomm/ircomm_tty.c linux-3.0.4/net/irda/ircomm/ircomm_tty.c ---- linux-3.0.4/net/irda/ircomm/ircomm_tty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/irda/ircomm/ircomm_tty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -282,16 +282,16 @@ static int ircomm_tty_block_til_ready(st - 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) { -@@ -331,7 +331,7 @@ static int ircomm_tty_block_til_ready(st - } - - 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(); - } -@@ -342,13 +342,13 @@ static int ircomm_tty_block_til_ready(st - 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; -@@ -417,14 +417,14 @@ static int ircomm_tty_open(struct tty_st - } - /* ++ 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; -@@ -510,7 +510,7 @@ static void ircomm_tty_close(struct tty_ - 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 -@@ -520,16 +520,16 @@ static void ircomm_tty_close(struct tty_ - */ - 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__ ); -@@ -561,7 +561,7 @@ static void ircomm_tty_close(struct tty_ - 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); -@@ -1013,7 +1013,7 @@ static void ircomm_tty_hangup(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); -@@ -1360,7 +1360,7 @@ static void ircomm_tty_line_info(struct - 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 -urNp linux-3.0.4/net/iucv/af_iucv.c linux-3.0.4/net/iucv/af_iucv.c ---- linux-3.0.4/net/iucv/af_iucv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/iucv/af_iucv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -648,10 +648,10 @@ static int iucv_sock_autobind(struct soc - - 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 -urNp linux-3.0.4/net/key/af_key.c linux-3.0.4/net/key/af_key.c ---- linux-3.0.4/net/key/af_key.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/key/af_key.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2481,6 +2481,8 @@ static int pfkey_migrate(struct sock *sk - struct xfrm_migrate m[XFRM_MAX_DEPTH]; - struct xfrm_kmaddress k; - -+ pax_track_stack(); -+ - if (!present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC - 1], - ext_hdrs[SADB_EXT_ADDRESS_DST - 1]) || - !ext_hdrs[SADB_X_EXT_POLICY - 1]) { -@@ -3016,10 +3018,10 @@ static int pfkey_send_policy_notify(stru - 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 -urNp linux-3.0.4/net/lapb/lapb_iface.c linux-3.0.4/net/lapb/lapb_iface.c ---- linux-3.0.4/net/lapb/lapb_iface.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/lapb/lapb_iface.c 2011-08-23 21:47:56.000000000 -0400 -@@ -158,7 +158,7 @@ int lapb_register(struct net_device *dev - goto out; - - lapb->dev = dev; -- lapb->callbacks = *callbacks; -+ lapb->callbacks = callbacks; - - __lapb_insert_cb(lapb); - -@@ -380,32 +380,32 @@ int lapb_data_received(struct net_device - - void lapb_connect_confirmation(struct lapb_cb *lapb, int reason) - { -- if (lapb->callbacks.connect_confirmation) -- lapb->callbacks.connect_confirmation(lapb->dev, reason); -+ if (lapb->callbacks->connect_confirmation) -+ lapb->callbacks->connect_confirmation(lapb->dev, reason); - } - - void lapb_connect_indication(struct lapb_cb *lapb, int reason) - { -- if (lapb->callbacks.connect_indication) -- lapb->callbacks.connect_indication(lapb->dev, reason); -+ if (lapb->callbacks->connect_indication) -+ lapb->callbacks->connect_indication(lapb->dev, reason); - } - - void lapb_disconnect_confirmation(struct lapb_cb *lapb, int reason) - { -- if (lapb->callbacks.disconnect_confirmation) -- lapb->callbacks.disconnect_confirmation(lapb->dev, reason); -+ if (lapb->callbacks->disconnect_confirmation) -+ lapb->callbacks->disconnect_confirmation(lapb->dev, reason); - } - - void lapb_disconnect_indication(struct lapb_cb *lapb, int reason) - { -- if (lapb->callbacks.disconnect_indication) -- lapb->callbacks.disconnect_indication(lapb->dev, reason); -+ if (lapb->callbacks->disconnect_indication) -+ lapb->callbacks->disconnect_indication(lapb->dev, reason); - } - - int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *skb) - { -- if (lapb->callbacks.data_indication) -- return lapb->callbacks.data_indication(lapb->dev, skb); -+ if (lapb->callbacks->data_indication) -+ return lapb->callbacks->data_indication(lapb->dev, skb); - - kfree_skb(skb); - return NET_RX_SUCCESS; /* For now; must be != NET_RX_DROP */ -@@ -415,8 +415,8 @@ int lapb_data_transmit(struct lapb_cb *l - { - int used = 0; - -- if (lapb->callbacks.data_transmit) { -- lapb->callbacks.data_transmit(lapb->dev, skb); -+ if (lapb->callbacks->data_transmit) { -+ lapb->callbacks->data_transmit(lapb->dev, skb); - used = 1; - } - -diff -urNp linux-3.0.4/net/mac80211/debugfs_sta.c linux-3.0.4/net/mac80211/debugfs_sta.c ---- linux-3.0.4/net/mac80211/debugfs_sta.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/debugfs_sta.c 2011-08-23 21:48:14.000000000 -0400 -@@ -140,6 +140,8 @@ static ssize_t sta_agg_status_read(struc - struct tid_ampdu_rx *tid_rx; - struct tid_ampdu_tx *tid_tx; - -+ pax_track_stack(); -+ - rcu_read_lock(); - - p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", -@@ -240,6 +242,8 @@ static ssize_t sta_ht_capa_read(struct f - struct sta_info *sta = file->private_data; - struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; - -+ pax_track_stack(); -+ - p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", - htc->ht_supported ? "" : "not "); - if (htc->ht_supported) { -diff -urNp linux-3.0.4/net/mac80211/ieee80211_i.h linux-3.0.4/net/mac80211/ieee80211_i.h ---- linux-3.0.4/net/mac80211/ieee80211_i.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/ieee80211_i.h 2011-08-23 21:47:56.000000000 -0400 -@@ -27,6 +27,7 @@ - #include <net/ieee80211_radiotap.h> - #include <net/cfg80211.h> - #include <net/mac80211.h> -+#include <asm/local.h> - #include "key.h" - #include "sta_info.h" - -@@ -721,7 +722,7 @@ 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 -urNp linux-3.0.4/net/mac80211/iface.c linux-3.0.4/net/mac80211/iface.c ---- linux-3.0.4/net/mac80211/iface.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/mac80211/iface.c 2011-08-23 21:47:56.000000000 -0400 -@@ -211,7 +211,7 @@ static int ieee80211_do_open(struct net_ - break; - } - -- if (local->open_count == 0) { -+ if (local_read(&local->open_count) == 0) { - res = drv_start(local); - if (res) - goto err_del_bss; -@@ -235,7 +235,7 @@ static int ieee80211_do_open(struct net_ - 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; - } -@@ -327,7 +327,7 @@ static int ieee80211_do_open(struct net_ - 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); -@@ -347,7 +347,7 @@ static int ieee80211_do_open(struct net_ - err_del_interface: - drv_remove_interface(local, &sdata->vif); - err_stop: -- if (!local->open_count) -+ if (!local_read(&local->open_count)) - drv_stop(local); - err_del_bss: - sdata->bss = NULL; -@@ -475,7 +475,7 @@ static void ieee80211_do_stop(struct iee - } - - if (going_down) -- local->open_count--; -+ local_dec(&local->open_count); - - switch (sdata->vif.type) { - case NL80211_IFTYPE_AP_VLAN: -@@ -534,7 +534,7 @@ static void ieee80211_do_stop(struct iee - - 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 -urNp linux-3.0.4/net/mac80211/main.c linux-3.0.4/net/mac80211/main.c ---- linux-3.0.4/net/mac80211/main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/main.c 2011-08-23 21:47:56.000000000 -0400 -@@ -209,7 +209,7 @@ int ieee80211_hw_config(struct ieee80211 - 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 -urNp linux-3.0.4/net/mac80211/mlme.c linux-3.0.4/net/mac80211/mlme.c ---- linux-3.0.4/net/mac80211/mlme.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/mac80211/mlme.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1444,6 +1444,8 @@ static bool ieee80211_assoc_success(stru - bool have_higher_than_11mbit = false; - u16 ap_ht_cap_flags; - -+ pax_track_stack(); -+ - /* AssocResp and ReassocResp have identical structure */ - - aid = le16_to_cpu(mgmt->u.assoc_resp.aid); -diff -urNp linux-3.0.4/net/mac80211/pm.c linux-3.0.4/net/mac80211/pm.c ---- linux-3.0.4/net/mac80211/pm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/pm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -47,7 +47,7 @@ int __ieee80211_suspend(struct ieee80211 - 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) { -@@ -111,7 +111,7 @@ int __ieee80211_suspend(struct ieee80211 - } - - /* stop hardware - this must stop RX */ -- if (local->open_count) -+ if (local_read(&local->open_count)) - ieee80211_stop_device(local); - - suspend: -diff -urNp linux-3.0.4/net/mac80211/rate.c linux-3.0.4/net/mac80211/rate.c ---- linux-3.0.4/net/mac80211/rate.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/rate.c 2011-08-23 21:47:56.000000000 -0400 -@@ -371,7 +371,7 @@ int ieee80211_init_rate_ctrl_alg(struct - - ASSERT_RTNL(); - -- if (local->open_count) -+ if (local_read(&local->open_count)) - return -EBUSY; - - if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { -diff -urNp linux-3.0.4/net/mac80211/rc80211_pid_debugfs.c linux-3.0.4/net/mac80211/rc80211_pid_debugfs.c ---- linux-3.0.4/net/mac80211/rc80211_pid_debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/rc80211_pid_debugfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -192,7 +192,7 @@ static ssize_t rate_control_pid_events_r - - 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 -urNp linux-3.0.4/net/mac80211/util.c linux-3.0.4/net/mac80211/util.c ---- linux-3.0.4/net/mac80211/util.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/mac80211/util.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1147,7 +1147,7 @@ int ieee80211_reconfig(struct ieee80211_ - #endif - - /* restart hardware */ -- if (local->open_count) { -+ if (local_read(&local->open_count)) { - /* - * Upon resume hardware can sometimes be goofy due to - * various platform / driver / bus issues, so restarting -diff -urNp linux-3.0.4/net/netfilter/ipvs/ip_vs_conn.c linux-3.0.4/net/netfilter/ipvs/ip_vs_conn.c ---- linux-3.0.4/net/netfilter/ipvs/ip_vs_conn.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/ipvs/ip_vs_conn.c 2011-08-23 21:47:56.000000000 -0400 -@@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, s - /* 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_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 - - /* 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 -urNp linux-3.0.4/net/netfilter/ipvs/ip_vs_core.c linux-3.0.4/net/netfilter/ipvs/ip_vs_core.c ---- linux-3.0.4/net/netfilter/ipvs/ip_vs_core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/ipvs/ip_vs_core.c 2011-08-23 21:47:56.000000000 -0400 -@@ -563,7 +563,7 @@ int ip_vs_leave(struct ip_vs_service *sv - 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; - } -@@ -1613,7 +1613,7 @@ ip_vs_in(unsigned int hooknum, struct sk - 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 -urNp linux-3.0.4/net/netfilter/ipvs/ip_vs_ctl.c linux-3.0.4/net/netfilter/ipvs/ip_vs_ctl.c ---- linux-3.0.4/net/netfilter/ipvs/ip_vs_ctl.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/netfilter/ipvs/ip_vs_ctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -782,7 +782,7 @@ __ip_vs_update_dest(struct ip_vs_service - 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) { -@@ -2027,7 +2027,7 @@ static int ip_vs_info_seq_show(struct se - " %-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)); -@@ -2038,7 +2038,7 @@ static int ip_vs_info_seq_show(struct se - "%-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)); -@@ -2284,6 +2284,8 @@ do_ip_vs_set_ctl(struct sock *sk, int cm - struct ip_vs_dest_user *udest_compat; - struct ip_vs_dest_user_kern udest; - -+ pax_track_stack(); -+ - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - -@@ -2498,7 +2500,7 @@ __ip_vs_get_dest_entries(struct net *net - - 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; -@@ -3026,7 +3028,7 @@ static int ip_vs_genl_fill_dest(struct s - 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 -urNp linux-3.0.4/net/netfilter/ipvs/ip_vs_sync.c linux-3.0.4/net/netfilter/ipvs/ip_vs_sync.c ---- linux-3.0.4/net/netfilter/ipvs/ip_vs_sync.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/ipvs/ip_vs_sync.c 2011-08-23 21:47:56.000000000 -0400 -@@ -648,7 +648,7 @@ 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; -@@ -794,7 +794,7 @@ static void ip_vs_proc_conn(struct net * - - 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 -urNp linux-3.0.4/net/netfilter/ipvs/ip_vs_xmit.c linux-3.0.4/net/netfilter/ipvs/ip_vs_xmit.c ---- linux-3.0.4/net/netfilter/ipvs/ip_vs_xmit.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/ipvs/ip_vs_xmit.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1151,7 +1151,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, str - 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, - else - rc = NF_ACCEPT; - /* do not touch skb anymore */ -- atomic_inc(&cp->in_pkts); -+ atomic_inc_unchecked(&cp->in_pkts); - goto out; - } - -diff -urNp linux-3.0.4/net/netfilter/Kconfig linux-3.0.4/net/netfilter/Kconfig ---- linux-3.0.4/net/netfilter/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -781,6 +781,16 @@ 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 -urNp linux-3.0.4/net/netfilter/Makefile linux-3.0.4/net/netfilter/Makefile ---- linux-3.0.4/net/netfilter/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/Makefile 2011-08-23 21:48:14.000000000 -0400 -@@ -81,6 +81,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DCCP) += - obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o - obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.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 -urNp linux-3.0.4/net/netfilter/nfnetlink_log.c linux-3.0.4/net/netfilter/nfnetlink_log.c ---- linux-3.0.4/net/netfilter/nfnetlink_log.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/nfnetlink_log.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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]; -@@ -505,7 +505,7 @@ __build_packet_message(struct nfulnl_ins - /* 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 -urNp linux-3.0.4/net/netfilter/nfnetlink_queue.c linux-3.0.4/net/netfilter/nfnetlink_queue.c ---- linux-3.0.4/net/netfilter/nfnetlink_queue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/nfnetlink_queue.c 2011-08-23 21:47:56.000000000 -0400 -@@ -58,7 +58,7 @@ struct nfqnl_instance { - */ - spinlock_t lock; - unsigned int queue_total; -- atomic_t id_sequence; /* 'sequence' of pkt ids */ -+ atomic_unchecked_t id_sequence; /* 'sequence' of pkt ids */ - struct list_head queue_list; /* packets in queue */ - }; - -@@ -272,7 +272,7 @@ nfqnl_build_packet_message(struct nfqnl_ - nfmsg->version = NFNETLINK_V0; - nfmsg->res_id = htons(queue->queue_num); - -- entry->id = atomic_inc_return(&queue->id_sequence); -+ entry->id = atomic_inc_return_unchecked(&queue->id_sequence); - pmsg.packet_id = htonl(entry->id); - pmsg.hw_protocol = entskb->protocol; - pmsg.hook = entry->hook; -@@ -870,7 +870,7 @@ static int seq_show(struct seq_file *s, - inst->peer_pid, inst->queue_total, - inst->copy_mode, inst->copy_range, - inst->queue_dropped, inst->queue_user_dropped, -- atomic_read(&inst->id_sequence), 1); -+ atomic_read_unchecked(&inst->id_sequence), 1); - } - - static const struct seq_operations nfqnl_seq_ops = { -diff -urNp linux-3.0.4/net/netfilter/xt_gradm.c linux-3.0.4/net/netfilter/xt_gradm.c ---- linux-3.0.4/net/netfilter/xt_gradm.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/net/netfilter/xt_gradm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/netfilter/xt_statistic.c linux-3.0.4/net/netfilter/xt_statistic.c ---- linux-3.0.4/net/netfilter/xt_statistic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netfilter/xt_statistic.c 2011-08-23 21:47:56.000000000 -0400 -@@ -18,7 +18,7 @@ - #include <linux/netfilter/x_tables.h> - - struct xt_statistic_priv { -- atomic_t count; -+ atomic_unchecked_t count; - } ____cacheline_aligned_in_smp; - - MODULE_LICENSE("GPL"); -@@ -41,9 +41,9 @@ statistic_mt(const struct sk_buff *skb, - 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; -@@ -63,7 +63,7 @@ static int statistic_mt_check(const stru - 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 -urNp linux-3.0.4/net/netlink/af_netlink.c linux-3.0.4/net/netlink/af_netlink.c ---- linux-3.0.4/net/netlink/af_netlink.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netlink/af_netlink.c 2011-08-23 21:47:56.000000000 -0400 -@@ -742,7 +742,7 @@ static void netlink_overrun(struct sock - 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) -@@ -1994,7 +1994,7 @@ static int netlink_seq_show(struct seq_f - 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 -urNp linux-3.0.4/net/netrom/af_netrom.c linux-3.0.4/net/netrom/af_netrom.c ---- linux-3.0.4/net/netrom/af_netrom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/netrom/af_netrom.c 2011-08-23 21:48:14.000000000 -0400 -@@ -839,6 +839,7 @@ static int nr_getname(struct socket *soc - 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) { -@@ -853,7 +854,6 @@ static int nr_getname(struct socket *soc - *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 -urNp linux-3.0.4/net/packet/af_packet.c linux-3.0.4/net/packet/af_packet.c ---- linux-3.0.4/net/packet/af_packet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/packet/af_packet.c 2011-08-23 21:47:56.000000000 -0400 -@@ -647,14 +647,14 @@ static int packet_rcv(struct sk_buff *sk - - 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); - return 0; - - drop_n_acct: -- po->stats.tp_drops = atomic_inc_return(&sk->sk_drops); -+ po->stats.tp_drops = atomic_inc_return_unchecked(&sk->sk_drops); - - drop_n_restore: - if (skb_head != skb->data && skb_shared(skb)) { -@@ -2168,7 +2168,7 @@ static int packet_getsockopt(struct sock - 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: -@@ -2206,7 +2206,7 @@ static int packet_getsockopt(struct sock - - 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 -urNp linux-3.0.4/net/phonet/af_phonet.c linux-3.0.4/net/phonet/af_phonet.c ---- linux-3.0.4/net/phonet/af_phonet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/phonet/af_phonet.c 2011-08-23 21:48:14.000000000 -0400 -@@ -41,7 +41,7 @@ static struct phonet_protocol *phonet_pr - { - 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_regist - { - int err = 0; - -- if (protocol >= PHONET_NPROTO) -+ if (protocol < 0 || protocol >= PHONET_NPROTO) - return -EINVAL; - - err = proto_register(pp->prot, 1); -diff -urNp linux-3.0.4/net/phonet/pep.c linux-3.0.4/net/phonet/pep.c ---- linux-3.0.4/net/phonet/pep.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/phonet/pep.c 2011-08-23 21:47:56.000000000 -0400 -@@ -387,7 +387,7 @@ static int pipe_do_rcv(struct sock *sk, - - 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); -@@ -408,7 +408,7 @@ static int pipe_do_rcv(struct sock *sk, - } - - if (pn->rx_credits == 0) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - err = -ENOBUFS; - break; - } -@@ -556,7 +556,7 @@ static int pipe_handler_do_rcv(struct so - } - - if (pn->rx_credits == 0) { -- atomic_inc(&sk->sk_drops); -+ atomic_inc_unchecked(&sk->sk_drops); - err = NET_RX_DROP; - break; - } -diff -urNp linux-3.0.4/net/phonet/socket.c linux-3.0.4/net/phonet/socket.c ---- linux-3.0.4/net/phonet/socket.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/phonet/socket.c 2011-08-23 21:48:14.000000000 -0400 -@@ -612,8 +612,13 @@ static int pn_sock_seq_show(struct seq_f - 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 -urNp linux-3.0.4/net/rds/cong.c linux-3.0.4/net/rds/cong.c ---- linux-3.0.4/net/rds/cong.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/cong.c 2011-08-23 21:47:56.000000000 -0400 -@@ -77,7 +77,7 @@ - * 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 -@@ -232,7 +232,7 @@ void rds_cong_map_updated(struct rds_con - 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)) -@@ -258,7 +258,7 @@ 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 -urNp linux-3.0.4/net/rds/ib_cm.c linux-3.0.4/net/rds/ib_cm.c ---- linux-3.0.4/net/rds/ib_cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/ib_cm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -720,7 +720,7 @@ void rds_ib_conn_shutdown(struct rds_con - /* 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 -urNp linux-3.0.4/net/rds/ib.h linux-3.0.4/net/rds/ib.h ---- linux-3.0.4/net/rds/ib.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/ib.h 2011-08-23 21:47:56.000000000 -0400 -@@ -127,7 +127,7 @@ 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 -urNp linux-3.0.4/net/rds/ib_recv.c linux-3.0.4/net/rds/ib_recv.c ---- linux-3.0.4/net/rds/ib_recv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/ib_recv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -592,7 +592,7 @@ static u64 rds_ib_get_ack(struct rds_ib_ - 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_ - 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 -urNp linux-3.0.4/net/rds/iw_cm.c linux-3.0.4/net/rds/iw_cm.c ---- linux-3.0.4/net/rds/iw_cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/iw_cm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -664,7 +664,7 @@ void rds_iw_conn_shutdown(struct rds_con - /* 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 -urNp linux-3.0.4/net/rds/iw.h linux-3.0.4/net/rds/iw.h ---- linux-3.0.4/net/rds/iw.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/iw.h 2011-08-23 21:47:56.000000000 -0400 -@@ -133,7 +133,7 @@ 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 -urNp linux-3.0.4/net/rds/iw_rdma.c linux-3.0.4/net/rds/iw_rdma.c ---- linux-3.0.4/net/rds/iw_rdma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/iw_rdma.c 2011-08-23 21:48:14.000000000 -0400 -@@ -182,6 +182,8 @@ int rds_iw_update_cm_id(struct rds_iw_de - struct rdma_cm_id *pcm_id; - int rc; - -+ pax_track_stack(); -+ - src_addr = (struct sockaddr_in *)&cm_id->route.addr.src_addr; - dst_addr = (struct sockaddr_in *)&cm_id->route.addr.dst_addr; - -diff -urNp linux-3.0.4/net/rds/iw_recv.c linux-3.0.4/net/rds/iw_recv.c ---- linux-3.0.4/net/rds/iw_recv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rds/iw_recv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_ - 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_ - 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 -urNp linux-3.0.4/net/rxrpc/af_rxrpc.c linux-3.0.4/net/rxrpc/af_rxrpc.c ---- linux-3.0.4/net/rxrpc/af_rxrpc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/af_rxrpc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -39,7 +39,7 @@ static const struct proto_ops rxrpc_rpc_ - __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 -urNp linux-3.0.4/net/rxrpc/ar-ack.c linux-3.0.4/net/rxrpc/ar-ack.c ---- linux-3.0.4/net/rxrpc/ar-ack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-ack.c 2011-08-23 21:48:14.000000000 -0400 -@@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_ca - - _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_ca - - /* 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(struc - */ - 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, -@@ -842,6 +842,8 @@ void rxrpc_process_call(struct work_stru - u32 abort_code = RX_PROTOCOL_ERROR; - u8 *acks = NULL; - -+ pax_track_stack(); -+ - //printk("\n--------------------\n"); - _enter("{%d,%s,%lx} [%lu]", - call->debug_id, rxrpc_call_states[call->state], call->events, -@@ -1161,7 +1163,7 @@ void rxrpc_process_call(struct work_stru - 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 +1175,7 @@ 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 +1193,7 @@ 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 -urNp linux-3.0.4/net/rxrpc/ar-call.c linux-3.0.4/net/rxrpc/ar-call.c ---- linux-3.0.4/net/rxrpc/ar-call.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-call.c 2011-08-23 21:47:56.000000000 -0400 -@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_ca - 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 -urNp linux-3.0.4/net/rxrpc/ar-connection.c linux-3.0.4/net/rxrpc/ar-connection.c ---- linux-3.0.4/net/rxrpc/ar-connection.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-connection.c 2011-08-23 21:47:56.000000000 -0400 -@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_al - 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 -urNp linux-3.0.4/net/rxrpc/ar-connevent.c linux-3.0.4/net/rxrpc/ar-connevent.c ---- linux-3.0.4/net/rxrpc/ar-connevent.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-connevent.c 2011-08-23 21:47:56.000000000 -0400 -@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct - - 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 -urNp linux-3.0.4/net/rxrpc/ar-input.c linux-3.0.4/net/rxrpc/ar-input.c ---- linux-3.0.4/net/rxrpc/ar-input.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-input.c 2011-08-23 21:47:56.000000000 -0400 -@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rx - /* 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 -urNp linux-3.0.4/net/rxrpc/ar-internal.h linux-3.0.4/net/rxrpc/ar-internal.h ---- linux-3.0.4/net/rxrpc/ar-internal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-internal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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(stru - */ - 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 -urNp linux-3.0.4/net/rxrpc/ar-local.c linux-3.0.4/net/rxrpc/ar-local.c ---- linux-3.0.4/net/rxrpc/ar-local.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-local.c 2011-08-23 21:47:56.000000000 -0400 -@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(st - 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 -urNp linux-3.0.4/net/rxrpc/ar-output.c linux-3.0.4/net/rxrpc/ar-output.c ---- linux-3.0.4/net/rxrpc/ar-output.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-output.c 2011-08-23 21:47:56.000000000 -0400 -@@ -681,9 +681,9 @@ static int rxrpc_send_data(struct kiocb - 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 -urNp linux-3.0.4/net/rxrpc/ar-peer.c linux-3.0.4/net/rxrpc/ar-peer.c ---- linux-3.0.4/net/rxrpc/ar-peer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-peer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_pe - 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 -urNp linux-3.0.4/net/rxrpc/ar-proc.c linux-3.0.4/net/rxrpc/ar-proc.c ---- linux-3.0.4/net/rxrpc/ar-proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-proc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(str - 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 -urNp linux-3.0.4/net/rxrpc/ar-transport.c linux-3.0.4/net/rxrpc/ar-transport.c ---- linux-3.0.4/net/rxrpc/ar-transport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/ar-transport.c 2011-08-23 21:47:56.000000000 -0400 -@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_all - 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 -urNp linux-3.0.4/net/rxrpc/rxkad.c linux-3.0.4/net/rxrpc/rxkad.c ---- linux-3.0.4/net/rxrpc/rxkad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/rxrpc/rxkad.c 2011-08-23 21:48:14.000000000 -0400 -@@ -211,6 +211,8 @@ static int rxkad_secure_packet_encrypt(c - u16 check; - int nsg; - -+ pax_track_stack(); -+ - sp = rxrpc_skb(skb); - - _enter(""); -@@ -338,6 +340,8 @@ static int rxkad_verify_packet_auth(cons - u16 check; - int nsg; - -+ pax_track_stack(); -+ - _enter(""); - - sp = rxrpc_skb(skb); -@@ -610,7 +614,7 @@ static int rxkad_issue_challenge(struct - - 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 +664,7 @@ static int rxkad_send_response(struct rx - - 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 -urNp linux-3.0.4/net/sctp/proc.c linux-3.0.4/net/sctp/proc.c ---- linux-3.0.4/net/sctp/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sctp/proc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -318,7 +318,8 @@ static int sctp_assocs_seq_show(struct s - 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 -urNp linux-3.0.4/net/sctp/socket.c linux-3.0.4/net/sctp/socket.c ---- linux-3.0.4/net/sctp/socket.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sctp/socket.c 2011-08-23 21:47:56.000000000 -0400 -@@ -4452,7 +4452,7 @@ static int sctp_getsockopt_peer_addrs(st - 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 -urNp linux-3.0.4/net/socket.c linux-3.0.4/net/socket.c ---- linux-3.0.4/net/socket.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/net/socket.c 2011-08-23 21:48:14.000000000 -0400 -@@ -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(struc - &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", -@@ -1187,6 +1190,8 @@ int __sock_create(struct net *net, int f - return -EAFNOSUPPORT; - if (type < 0 || type >= SOCK_MAX) - return -EINVAL; -+ if (protocol < 0) -+ return -EINVAL; - - /* Compatibility. - -@@ -1319,6 +1324,16 @@ SYSCALL_DEFINE3(socket, int, family, int - 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; -@@ -1431,6 +1446,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct so - if (sock) { - err = move_addr_to_kernel(umyaddr, addrlen, (struct sockaddr *)&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); -@@ -1439,6 +1462,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct so - (struct sockaddr *) - &address, addrlen); - } -+error: - fput_light(sock->file, fput_needed); - } - return err; -@@ -1462,10 +1486,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, ba - 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; -@@ -1509,6 +1543,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct - 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. -@@ -1547,6 +1593,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct - fd_install(newfd, newfile); - err = newfd; - -+ gr_attach_curr_ip(newsock->sk); -+ - out_put: - fput_light(sock->file, fput_needed); - out: -@@ -1579,6 +1627,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct - int, addrlen) - { - struct socket *sock; -+ struct sockaddr *sck; - struct sockaddr_storage address; - int err, fput_needed; - -@@ -1589,6 +1638,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct - 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) -@@ -1890,6 +1950,8 @@ static int __sys_sendmsg(struct socket * - unsigned char *ctl_buf = ctl; - int err, ctl_len, iov_size, total_len; - -+ pax_track_stack(); -+ - err = -EFAULT; - if (MSG_CMSG_COMPAT & flags) { - if (get_compat_msghdr(msg_sys, msg_compat)) -diff -urNp linux-3.0.4/net/sunrpc/sched.c linux-3.0.4/net/sunrpc/sched.c ---- linux-3.0.4/net/sunrpc/sched.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sunrpc/sched.c 2011-08-23 21:47:56.000000000 -0400 -@@ -234,9 +234,9 @@ static int rpc_wait_bit_killable(void *w - #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 -urNp linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma.c linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma.c ---- linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma.c 2011-08-23 21:47:56.000000000 -0400 -@@ -61,15 +61,15 @@ unsigned int svcrdma_max_req_size = RPCR - 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; -@@ -109,7 +109,7 @@ static int read_reset_stat(ctl_table *ta - 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; -@@ -150,63 +150,63 @@ 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 -urNp linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c ---- linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c 2011-08-23 21:47:56.000000000 -0400 -@@ -499,7 +499,7 @@ 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; -@@ -609,7 +609,7 @@ int svc_rdma_recvfrom(struct svc_rqst *r - 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; - } -@@ -629,7 +629,7 @@ int svc_rdma_recvfrom(struct svc_rqst *r - 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 -urNp linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_sendto.c linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_sendto.c ---- linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_sendto.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_sendto.c 2011-08-23 21:47:56.000000000 -0400 -@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdm - 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 -urNp linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_transport.c linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_transport.c ---- linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_transport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sunrpc/xprtrdma/svc_rdma_transport.c 2011-08-23 21:47:56.000000000 -0400 -@@ -298,7 +298,7 @@ static void rq_cq_reap(struct svcxprt_rd - 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; -@@ -320,7 +320,7 @@ static void rq_cq_reap(struct svcxprt_rd - } - - if (ctxt) -- atomic_inc(&rdma_stat_rq_prod); -+ atomic_inc_unchecked(&rdma_stat_rq_prod); - - set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags); - /* -@@ -392,7 +392,7 @@ static void sq_cq_reap(struct svcxprt_rd - 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 */ -@@ -410,7 +410,7 @@ static void sq_cq_reap(struct svcxprt_rd - } - - 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) -@@ -1272,7 +1272,7 @@ int svc_rdma_send(struct svcxprt_rdma *x - 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 -urNp linux-3.0.4/net/sysctl_net.c linux-3.0.4/net/sysctl_net.c ---- linux-3.0.4/net/sysctl_net.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/sysctl_net.c 2011-08-23 21:48:14.000000000 -0400 -@@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ct - 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 -urNp linux-3.0.4/net/unix/af_unix.c linux-3.0.4/net/unix/af_unix.c ---- linux-3.0.4/net/unix/af_unix.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/unix/af_unix.c 2011-08-23 21:48:14.000000000 -0400 -@@ -767,6 +767,12 @@ static struct sock *unix_find_other(stru - 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; -@@ -787,6 +793,13 @@ static struct sock *unix_find_other(stru - if (u) { - struct dentry *dentry; - dentry = unix_sk(u)->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)->mnt, dentry); - } else -@@ -872,11 +885,18 @@ static int unix_bind(struct socket *sock - err = security_path_mknod(&nd.path, dentry, mode, 0); - if (err) - goto out_mknod_drop_write; -+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) { -+ err = -EACCES; -+ goto out_mknod_drop_write; -+ } - err = vfs_mknod(nd.path.dentry->d_inode, dentry, mode, 0); - out_mknod_drop_write: - mnt_drop_write(nd.path.mnt); - if (err) - goto out_mknod_dput; -+ -+ gr_handle_create(dentry, nd.path.mnt); -+ - mutex_unlock(&nd.path.dentry->d_inode->i_mutex); - dput(nd.path.dentry); - nd.path.dentry = dentry; -diff -urNp linux-3.0.4/net/wireless/core.h linux-3.0.4/net/wireless/core.h ---- linux-3.0.4/net/wireless/core.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/wireless/core.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/net/wireless/wext-core.c linux-3.0.4/net/wireless/wext-core.c ---- linux-3.0.4/net/wireless/wext-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/wireless/wext-core.c 2011-08-23 21:47:56.000000000 -0400 -@@ -746,8 +746,7 @@ static int ioctl_standard_iw_point(struc - */ - - /* 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. -@@ -784,22 +783,6 @@ static int ioctl_standard_iw_point(struc - } - } - -- 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 -urNp linux-3.0.4/net/xfrm/xfrm_policy.c linux-3.0.4/net/xfrm/xfrm_policy.c ---- linux-3.0.4/net/xfrm/xfrm_policy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/xfrm/xfrm_policy.c 2011-08-23 21:47:56.000000000 -0400 -@@ -299,7 +299,7 @@ static void xfrm_policy_kill(struct xfrm - { - 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 x - 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); -@@ -1528,7 +1528,7 @@ free_dst: - goto out; - } - --static int inline -+static inline int - xfrm_dst_alloc_copy(void **target, const void *src, int size) - { - if (!*target) { -@@ -1540,7 +1540,7 @@ xfrm_dst_alloc_copy(void **target, const - 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 -@@ -1552,7 +1552,7 @@ xfrm_dst_update_parent(struct dst_entry - #endif - } - --static int inline -+static inline int - xfrm_dst_update_origin(struct dst_entry *dst, const struct flowi *fl) - { - #ifdef CONFIG_XFRM_SUB_POLICY -@@ -1646,7 +1646,7 @@ xfrm_resolve_and_create_bundle(struct xf - - 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; - } -@@ -2333,7 +2333,7 @@ static int xfrm_bundle_ok(struct xfrm_ds - 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); -@@ -2861,7 +2861,7 @@ static int xfrm_policy_migrate(struct xf - 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 -urNp linux-3.0.4/net/xfrm/xfrm_user.c linux-3.0.4/net/xfrm/xfrm_user.c ---- linux-3.0.4/net/xfrm/xfrm_user.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/net/xfrm/xfrm_user.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1394,6 +1394,8 @@ static int copy_to_user_tmpl(struct xfrm - struct xfrm_user_tmpl vec[XFRM_MAX_DEPTH]; - int i; - -+ pax_track_stack(); -+ - if (xp->xfrm_nr == 0) - return 0; - -@@ -2062,6 +2064,8 @@ static int xfrm_do_migrate(struct sk_buf - int err; - int n = 0; - -+ pax_track_stack(); -+ - if (attrs[XFRMA_MIGRATE] == NULL) - return -EINVAL; - -diff -urNp linux-3.0.4/scripts/basic/fixdep.c linux-3.0.4/scripts/basic/fixdep.c ---- linux-3.0.4/scripts/basic/fixdep.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/basic/fixdep.c 2011-08-23 21:47:56.000000000 -0400 -@@ -235,9 +235,9 @@ static void use_config(const char *m, in - - 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++) { -@@ -405,7 +405,7 @@ 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 -urNp linux-3.0.4/scripts/gcc-plugin.sh linux-3.0.4/scripts/gcc-plugin.sh ---- linux-3.0.4/scripts/gcc-plugin.sh 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/scripts/gcc-plugin.sh 2011-09-14 09:08:05.000000000 -0400 -@@ -0,0 +1,2 @@ -+#!/bin/sh -+echo "#include \"gcc-plugin.h\"\n#include \"rtl.h\"" | $1 -x c -shared - -o /dev/null -I`$2 -print-file-name=plugin`/include >/dev/null 2>&1 && echo "y" -diff -urNp linux-3.0.4/scripts/Makefile.build linux-3.0.4/scripts/Makefile.build ---- linux-3.0.4/scripts/Makefile.build 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/Makefile.build 2011-08-23 21:47:56.000000000 -0400 -@@ -109,7 +109,7 @@ endif - endif - - # Do not include host rules unless needed --ifneq ($(hostprogs-y)$(hostprogs-m),) -+ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m),) - include scripts/Makefile.host - endif - -diff -urNp linux-3.0.4/scripts/Makefile.clean linux-3.0.4/scripts/Makefile.clean ---- linux-3.0.4/scripts/Makefile.clean 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/Makefile.clean 2011-08-23 21:47:56.000000000 -0400 -@@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subd - __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 -urNp linux-3.0.4/scripts/Makefile.host linux-3.0.4/scripts/Makefile.host ---- linux-3.0.4/scripts/Makefile.host 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/Makefile.host 2011-08-23 21:47:56.000000000 -0400 -@@ -31,6 +31,7 @@ - # Note: Shared libraries consisting of C++ files are not supported - - __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) -+__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) - - # C code - # Executables compiled from a single .c file -@@ -54,6 +55,7 @@ host-cxxobjs := $(sort $(foreach m,$(hos - # 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))) - # Remove .so files from "xxx-objs" - host-cobjs := $(filter-out %.so,$(host-cobjs)) - -diff -urNp linux-3.0.4/scripts/mod/file2alias.c linux-3.0.4/scripts/mod/file2alias.c ---- linux-3.0.4/scripts/mod/file2alias.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/mod/file2alias.c 2011-08-23 21:47:56.000000000 -0400 -@@ -72,7 +72,7 @@ static void device_id_check(const char * - 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) -@@ -102,7 +102,7 @@ static void device_id_check(const char * - /* 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) - { -@@ -437,7 +437,7 @@ static void do_pnp_device_entry(void *sy - 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); -@@ -467,7 +467,7 @@ static void do_pnp_card_entries(void *sy - - 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]) -@@ -493,7 +493,7 @@ static void do_pnp_card_entries(void *sy - /* 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); -@@ -786,7 +786,7 @@ static void dmi_ascii_filter(char *d, co - 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 -urNp linux-3.0.4/scripts/mod/modpost.c linux-3.0.4/scripts/mod/modpost.c ---- linux-3.0.4/scripts/mod/modpost.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/mod/modpost.c 2011-08-23 21:47:56.000000000 -0400 -@@ -892,6 +892,7 @@ enum mismatch { - ANY_INIT_TO_ANY_EXIT, - ANY_EXIT_TO_ANY_INIT, - EXPORT_TO_INIT_EXIT, -+ DATA_TO_TEXT - }; - - struct sectioncheck { -@@ -1000,6 +1001,12 @@ 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 - } - }; - -@@ -1122,10 +1129,10 @@ static Elf_Sym *find_elf_symbol(struct e - 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) { -@@ -1404,6 +1411,14 @@ static void report_sec_mismatch(const ch - 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"); - } -@@ -1629,7 +1644,7 @@ static void section_rel(const char *modn - 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 */ -@@ -1727,7 +1742,7 @@ void __attribute__((format(printf, 2, 3) - 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; -@@ -1939,7 +1954,7 @@ static void write_if_changed(struct buff - 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 -urNp linux-3.0.4/scripts/mod/modpost.h linux-3.0.4/scripts/mod/modpost.h ---- linux-3.0.4/scripts/mod/modpost.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/mod/modpost.h 2011-08-23 21:47:56.000000000 -0400 -@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *e - - 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 -urNp linux-3.0.4/scripts/mod/sumversion.c linux-3.0.4/scripts/mod/sumversion.c ---- linux-3.0.4/scripts/mod/sumversion.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/mod/sumversion.c 2011-08-23 21:47:56.000000000 -0400 -@@ -470,7 +470,7 @@ static void write_version(const char *fi - 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 -urNp linux-3.0.4/scripts/pnmtologo.c linux-3.0.4/scripts/pnmtologo.c ---- linux-3.0.4/scripts/pnmtologo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/scripts/pnmtologo.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/security/apparmor/lsm.c linux-3.0.4/security/apparmor/lsm.c ---- linux-3.0.4/security/apparmor/lsm.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/security/apparmor/lsm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -621,7 +621,7 @@ static int apparmor_task_setrlimit(struc - 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 -urNp linux-3.0.4/security/commoncap.c linux-3.0.4/security/commoncap.c ---- linux-3.0.4/security/commoncap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/commoncap.c 2011-08-23 21:48:14.000000000 -0400 -@@ -28,6 +28,7 @@ - #include <linux/prctl.h> - #include <linux/securebits.h> - #include <linux/user_namespace.h> -+#include <net/sock.h> - - /* - * If a non-root user executes a setuid-root binary in -@@ -58,7 +59,7 @@ int cap_netlink_send(struct sock *sk, st - - int cap_netlink_recv(struct sk_buff *skb, int cap) - { -- if (!cap_raised(current_cap(), cap)) -+ if (!cap_raised(current_cap(), cap) || !gr_is_capable(cap)) - return -EPERM; - return 0; - } -@@ -575,6 +576,9 @@ int cap_bprm_secureexec(struct linux_bin - { - 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 -urNp linux-3.0.4/security/integrity/ima/ima_api.c linux-3.0.4/security/integrity/ima/ima_api.c ---- linux-3.0.4/security/integrity/ima/ima_api.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/integrity/ima/ima_api.c 2011-08-23 21:47:56.000000000 -0400 -@@ -75,7 +75,7 @@ void ima_add_violation(struct inode *ino - 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 -urNp linux-3.0.4/security/integrity/ima/ima_fs.c linux-3.0.4/security/integrity/ima/ima_fs.c ---- linux-3.0.4/security/integrity/ima/ima_fs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/integrity/ima/ima_fs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/security/integrity/ima/ima.h linux-3.0.4/security/integrity/ima/ima.h ---- linux-3.0.4/security/integrity/ima/ima.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/integrity/ima/ima.h 2011-08-23 21:47:56.000000000 -0400 -@@ -85,8 +85,8 @@ void ima_add_violation(struct inode *ino - 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 -urNp linux-3.0.4/security/integrity/ima/ima_queue.c linux-3.0.4/security/integrity/ima/ima_queue.c ---- linux-3.0.4/security/integrity/ima/ima_queue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/integrity/ima/ima_queue.c 2011-08-23 21:47:56.000000000 -0400 -@@ -79,7 +79,7 @@ static int ima_add_digest_entry(struct i - 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 -urNp linux-3.0.4/security/Kconfig linux-3.0.4/security/Kconfig ---- linux-3.0.4/security/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/Kconfig 2011-09-17 00:58:04.000000000 -0400 -@@ -4,6 +4,558 @@ - - menu "Security options" - -+source grsecurity/Kconfig -+ -+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" -+ 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' -+ select PAX_PT_PAX_FLAGS -+ 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 support as it -+ is 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' -+ 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 support. -+ -+ Note that if you enable PT_PAX_FLAGS marking support as well, -+ the PT_PAX_FLAG marks will override the legacy EI_PAX marks. -+ -+config PAX_PT_PAX_FLAGS -+ bool 'Use ELF program header marking' -+ 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 your toolchain does not support PT_PAX_FLAGS markings, -+ you can create one in most cases with 'paxctl -C'. -+ -+ 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. -+ -+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" -+ depends on (PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS) && (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" -+ 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" -+ 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()" -+ 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)" -+ depends on PAX_MPROTECT -+ default n -+ 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" -+ depends on PAX_NOEXEC && (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. -+ -+config PAX_KERNEXEC_MODULE_TEXT -+ int "Minimum amount of memory reserved for module code" -+ default "4" -+ 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" -+ depends on PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS -+ 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" -+ depends on PAX_ASLR && 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" -+ 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" -+ 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" -+ 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" -+ 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 (cross compilation -+ is not supported). 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" -+ 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" -+ depends on GRKERNSEC && (X86 || SPARC64) -+ 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" -+ 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. -+ -+endmenu -+ -+endmenu -+ - config KEYS - bool "Enable access key retention support" - help -@@ -167,7 +719,7 @@ 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 -urNp linux-3.0.4/security/keys/keyring.c linux-3.0.4/security/keys/keyring.c ---- linux-3.0.4/security/keys/keyring.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/keys/keyring.c 2011-08-23 21:47:56.000000000 -0400 -@@ -215,15 +215,15 @@ static long keyring_read(const struct ke - 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 -urNp linux-3.0.4/security/min_addr.c linux-3.0.4/security/min_addr.c ---- linux-3.0.4/security/min_addr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/min_addr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG - */ - 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 -urNp linux-3.0.4/security/security.c linux-3.0.4/security/security.c ---- linux-3.0.4/security/security.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/security.c 2011-08-23 21:48:14.000000000 -0400 -@@ -25,8 +25,8 @@ static __initdata char chosen_lsm[SECURI - /* things that live in capability.c */ - extern void __init security_fixup_ops(struct security_operations *ops); - --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", - }; - -@@ -67,7 +67,9 @@ 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 -urNp linux-3.0.4/security/selinux/hooks.c linux-3.0.4/security/selinux/hooks.c ---- linux-3.0.4/security/selinux/hooks.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/selinux/hooks.c 2011-08-23 21:48:14.000000000 -0400 -@@ -93,7 +93,6 @@ - #define NUM_SEL_MNT_OPTS 5 - - extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm); --extern struct security_operations *security_ops; - - /* SECMARK reference count */ - atomic_t selinux_secmark_refcount = ATOMIC_INIT(0); -@@ -5454,7 +5453,7 @@ static int selinux_key_getsecurity(struc - - #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 -urNp linux-3.0.4/security/selinux/include/xfrm.h linux-3.0.4/security/selinux/include/xfrm.h ---- linux-3.0.4/security/selinux/include/xfrm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/selinux/include/xfrm.h 2011-08-23 21:47:56.000000000 -0400 -@@ -48,7 +48,7 @@ int selinux_xfrm_decode_session(struct s - - 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 -urNp linux-3.0.4/security/selinux/ss/services.c linux-3.0.4/security/selinux/ss/services.c ---- linux-3.0.4/security/selinux/ss/services.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/selinux/ss/services.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1814,6 +1814,8 @@ int security_load_policy(void *data, siz - int rc = 0; - struct policy_file file = { data, len }, *fp = &file; - -+ pax_track_stack(); -+ - if (!ss_initialized) { - avtab_cache_init(); - rc = policydb_read(&policydb, fp); -diff -urNp linux-3.0.4/security/smack/smack_lsm.c linux-3.0.4/security/smack/smack_lsm.c ---- linux-3.0.4/security/smack/smack_lsm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/smack/smack_lsm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -3392,7 +3392,7 @@ static int smack_inode_getsecctx(struct - return 0; - } - --struct security_operations smack_ops = { -+struct security_operations smack_ops __read_only = { - .name = "smack", - - .ptrace_access_check = smack_ptrace_access_check, -diff -urNp linux-3.0.4/security/tomoyo/tomoyo.c linux-3.0.4/security/tomoyo/tomoyo.c ---- linux-3.0.4/security/tomoyo/tomoyo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/security/tomoyo/tomoyo.c 2011-08-23 21:47:56.000000000 -0400 -@@ -240,7 +240,7 @@ static int tomoyo_sb_pivotroot(struct pa - * 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 -urNp linux-3.0.4/sound/aoa/codecs/onyx.c linux-3.0.4/sound/aoa/codecs/onyx.c ---- linux-3.0.4/sound/aoa/codecs/onyx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/aoa/codecs/onyx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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_i - 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_ - 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 -urNp linux-3.0.4/sound/aoa/codecs/onyx.h linux-3.0.4/sound/aoa/codecs/onyx.h ---- linux-3.0.4/sound/aoa/codecs/onyx.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/aoa/codecs/onyx.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/sound/core/seq/seq_device.c linux-3.0.4/sound/core/seq/seq_device.c ---- linux-3.0.4/sound/core/seq/seq_device.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/core/seq/seq_device.c 2011-08-23 21:47:56.000000000 -0400 -@@ -63,7 +63,7 @@ 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 */ -@@ -332,7 +332,7 @@ int snd_seq_device_register_driver(char - - mutex_lock(&ops->reg_mutex); - /* copy driver operators */ -- ops->ops = *entry; -+ ops->ops = entry; - ops->driver |= DRIVER_LOADED; - ops->argsize = argsize; - -@@ -462,7 +462,7 @@ static int init_device(struct snd_seq_de - 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 { -@@ -489,7 +489,7 @@ static int free_device(struct snd_seq_de - 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 -urNp linux-3.0.4/sound/drivers/mts64.c linux-3.0.4/sound/drivers/mts64.c ---- linux-3.0.4/sound/drivers/mts64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/drivers/mts64.c 2011-08-23 21:47:56.000000000 -0400 -@@ -28,6 +28,7 @@ - #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" -@@ -66,7 +67,7 @@ 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]; -@@ -696,7 +697,7 @@ static int snd_mts64_rawmidi_open(struct - { - 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 */ -@@ -704,7 +705,7 @@ static int snd_mts64_rawmidi_open(struct - - msleep(50); - } -- ++(mts->open_count); -+ local_inc(&mts->open_count); - - return 0; - } -@@ -714,8 +715,7 @@ static int snd_mts64_rawmidi_close(struc - 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); -@@ -724,8 +724,8 @@ static int snd_mts64_rawmidi_close(struc - - 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 -urNp linux-3.0.4/sound/drivers/opl4/opl4_lib.c linux-3.0.4/sound/drivers/opl4/opl4_lib.c ---- linux-3.0.4/sound/drivers/opl4/opl4_lib.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/drivers/opl4/opl4_lib.c 2011-08-23 21:47:56.000000000 -0400 -@@ -28,7 +28,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ - 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 -urNp linux-3.0.4/sound/drivers/portman2x4.c linux-3.0.4/sound/drivers/portman2x4.c ---- linux-3.0.4/sound/drivers/portman2x4.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/drivers/portman2x4.c 2011-08-23 21:47:56.000000000 -0400 -@@ -47,6 +47,7 @@ - #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" -@@ -84,7 +85,7 @@ 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 -urNp linux-3.0.4/sound/firewire/amdtp.c linux-3.0.4/sound/firewire/amdtp.c ---- linux-3.0.4/sound/firewire/amdtp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/firewire/amdtp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -371,7 +371,7 @@ static void queue_out_packet(struct amdt - 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 -urNp linux-3.0.4/sound/firewire/amdtp.h linux-3.0.4/sound/firewire/amdtp.h ---- linux-3.0.4/sound/firewire/amdtp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/firewire/amdtp.h 2011-08-23 21:47:56.000000000 -0400 -@@ -146,7 +146,7 @@ static inline void amdtp_out_stream_pcm_ - 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 -urNp linux-3.0.4/sound/firewire/isight.c linux-3.0.4/sound/firewire/isight.c ---- linux-3.0.4/sound/firewire/isight.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/firewire/isight.c 2011-08-23 21:47:56.000000000 -0400 -@@ -97,7 +97,7 @@ static void isight_update_pointers(struc - 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) { -@@ -308,7 +308,7 @@ static int isight_hw_params(struct snd_p - if (err < 0) - return err; - -- ACCESS_ONCE(isight->pcm_active) = true; -+ ACCESS_ONCE_RW(isight->pcm_active) = true; - - return 0; - } -@@ -341,7 +341,7 @@ static int isight_hw_free(struct snd_pcm - { - 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); -@@ -434,10 +434,10 @@ static int isight_trigger(struct snd_pcm - - 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 -urNp linux-3.0.4/sound/isa/cmi8330.c linux-3.0.4/sound/isa/cmi8330.c ---- linux-3.0.4/sound/isa/cmi8330.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/isa/cmi8330.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/sound/oss/sb_audio.c linux-3.0.4/sound/oss/sb_audio.c ---- linux-3.0.4/sound/oss/sb_audio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/oss/sb_audio.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/sound/oss/swarm_cs4297a.c linux-3.0.4/sound/oss/swarm_cs4297a.c ---- linux-3.0.4/sound/oss/swarm_cs4297a.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/oss/swarm_cs4297a.c 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/sound/pci/hda/hda_codec.h linux-3.0.4/sound/pci/hda/hda_codec.h ---- linux-3.0.4/sound/pci/hda/hda_codec.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/pci/hda/hda_codec.h 2011-08-23 21:47:56.000000000 -0400 -@@ -615,7 +615,7 @@ 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 -urNp linux-3.0.4/sound/pci/ice1712/ice1712.h linux-3.0.4/sound/pci/ice1712/ice1712.h ---- linux-3.0.4/sound/pci/ice1712/ice1712.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/pci/ice1712/ice1712.h 2011-08-23 21:47:56.000000000 -0400 -@@ -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 -urNp linux-3.0.4/sound/pci/ymfpci/ymfpci_main.c linux-3.0.4/sound/pci/ymfpci/ymfpci_main.c ---- linux-3.0.4/sound/pci/ymfpci/ymfpci_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/pci/ymfpci/ymfpci_main.c 2011-08-23 21:47:56.000000000 -0400 -@@ -202,8 +202,8 @@ static void snd_ymfpci_hw_stop(struct sn - 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: -@@ -787,7 +787,7 @@ static void snd_ymfpci_irq_wait(struct s - 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); - } -@@ -825,8 +825,8 @@ static irqreturn_t snd_ymfpci_interrupt( - 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); - } - } -@@ -2363,7 +2363,7 @@ int __devinit snd_ymfpci_create(struct s - 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 -urNp linux-3.0.4/sound/soc/soc-core.c linux-3.0.4/sound/soc/soc-core.c ---- linux-3.0.4/sound/soc/soc-core.c 2011-09-02 18:11:21.000000000 -0400 -+++ linux-3.0.4/sound/soc/soc-core.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1021,7 +1021,7 @@ static snd_pcm_uframes_t soc_pcm_pointer - } - - /* ASoC PCM operations */ --static struct snd_pcm_ops soc_pcm_ops = { -+static snd_pcm_ops_no_const soc_pcm_ops = { - .open = soc_pcm_open, - .close = soc_codec_close, - .hw_params = soc_pcm_hw_params, -@@ -2128,6 +2128,7 @@ static int soc_new_pcm(struct snd_soc_pc - rtd->pcm = pcm; - pcm->private_data = rtd; - if (platform->driver->ops) { -+ /* this whole logic is broken... */ - soc_pcm_ops.mmap = platform->driver->ops->mmap; - soc_pcm_ops.pointer = platform->driver->ops->pointer; - soc_pcm_ops.ioctl = platform->driver->ops->ioctl; -diff -urNp linux-3.0.4/sound/usb/card.h linux-3.0.4/sound/usb/card.h ---- linux-3.0.4/sound/usb/card.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/sound/usb/card.h 2011-08-23 21:47:56.000000000 -0400 -@@ -44,6 +44,7 @@ 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; -@@ -93,7 +94,7 @@ 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) */ - }; - - struct snd_usb_stream { -diff -urNp linux-3.0.4/tools/gcc/constify_plugin.c linux-3.0.4/tools/gcc/constify_plugin.c ---- linux-3.0.4/tools/gcc/constify_plugin.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/tools/gcc/constify_plugin.c 2011-08-30 18:23:52.000000000 -0400 -@@ -0,0 +1,293 @@ -+/* -+ * 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 "intl.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "toplev.h" -+#include "function.h" -+#include "tree-flow.h" -+#include "plugin.h" -+#include "diagnostic.h" -+//#include "c-tree.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 = "20110826", -+ .help = "no-constify\tturn off constification\n", -+}; -+ -+static void constify_type(tree type); -+static bool walk_struct(tree node); -+ -+static tree deconstify_type(tree old_type) -+{ -+ tree new_type, field; -+ -+ 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; -+ TYPE_READONLY(new_type) = 0; -+ C_TYPE_FIELDS_READONLY(new_type) = 0; -+ return 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) { -+ TREE_TYPE(*node) = deconstify_type(type); -+ TREE_READONLY(*node) = 0; -+ return NULL_TREE; -+ } -+ -+ return NULL_TREE; -+} -+ -+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 -+}; -+ -+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 -+}; -+ -+static void register_attributes(void *event_data, void *data) -+{ -+ register_attribute(&no_const_attr); -+ register_attribute(&do_const_attr); -+} -+ -+static void constify_type(tree type) -+{ -+ TYPE_READONLY(type) = 1; -+ C_TYPE_FIELDS_READONLY(type) = 1; -+} -+ -+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 (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) -+ return false; -+ -+ if (TYPE_FIELDS(node) == NULL_TREE) -+ 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 __GNUC__ == 4 && __GNUC_MINOR__ == 5 -+ 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("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 -urNp linux-3.0.4/tools/gcc/kallocstat_plugin.c linux-3.0.4/tools/gcc/kallocstat_plugin.c ---- linux-3.0.4/tools/gcc/kallocstat_plugin.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/tools/gcc/kallocstat_plugin.c 2011-09-17 00:53:44.000000000 -0400 -@@ -0,0 +1,165 @@ -+/* -+ * 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 "intl.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "toplev.h" -+#include "basic-block.h" -+#include "gimple.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "function.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 = "201109121100", -+}; -+ -+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; -+ gimple_stmt_iterator gsi; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ 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 -urNp linux-3.0.4/tools/gcc/kernexec_plugin.c linux-3.0.4/tools/gcc/kernexec_plugin.c ---- linux-3.0.4/tools/gcc/kernexec_plugin.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/tools/gcc/kernexec_plugin.c 2011-09-19 09:16:58.000000000 -0400 -@@ -0,0 +1,265 @@ -+/* -+ * 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 "intl.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "toplev.h" -+#include "basic-block.h" -+#include "gimple.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "function.h" -+#include "tree-flow.h" -+ -+extern void print_gimple_stmt(FILE *, gimple, int, int); -+ -+int plugin_is_GPL_compatible; -+ -+static struct plugin_info kernexec_plugin_info = { -+ .version = "201109191200", -+}; -+ -+static unsigned int execute_kernexec_fptr(void); -+static unsigned int execute_kernexec_retaddr(void); -+ -+static struct gimple_opt_pass kernexec_fptr_pass = { -+ .pass = { -+ .type = GIMPLE_PASS, -+ .name = "kernexec_fptr", -+ .gate = NULL, -+ .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 = NULL, -+ .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 -+ } -+}; -+ -+/* -+ * 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(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, NULL); -+ add_referenced_var(intptr); -+ mark_sym_for_renaming(intptr); -+ assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr)); -+ update_stmt(assign_intptr); -+ gsi_insert_before(&gsi, assign_intptr, GSI_NEW_STMT); -+ -+ gsi_next(&gsi); -+ -+ // 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)); -+ update_stmt(assign_intptr); -+ gsi_insert_before(&gsi, assign_intptr, GSI_NEW_STMT); -+ -+ gsi_next(&gsi); -+ -+ // cast temporary unsigned long back to a temporary fptr variable -+ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), NULL); -+ 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)); -+ update_stmt(assign_new_fptr); -+ gsi_insert_before(&gsi, assign_new_fptr, GSI_NEW_STMT); -+ -+ gsi_next(&gsi); -+ -+ // 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; -+ gimple_stmt_iterator gsi; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ 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: orb $0x80,7(%rsp) just before retn -+static void kernexec_instrument_retaddr(rtx insn) -+{ -+ rtx ret_addr, clob, or; -+ -+ start_sequence(); -+ -+ // compute 7(%rsp) -+ ret_addr = gen_rtx_MEM(QImode, gen_rtx_PLUS(Pmode, stack_pointer_rtx, GEN_INT(7))); -+ MEM_VOLATILE_P(ret_addr) = 1; -+ -+ // create orb $0x80,7(%rsp) -+ or = gen_rtx_SET(VOIDmode, ret_addr, gen_rtx_IOR(QImode, ret_addr, GEN_INT(0xffffffffffffff80))); -+ clob = gen_rtx_CLOBBER(VOIDmode, gen_rtx_REG(CCmode, FLAGS_REG)); -+ -+ // put everything together -+ or = emit_insn(gen_rtx_PARALLEL(VOIDmode, gen_rtvec(2, or, clob))); -+ RTX_FRAME_RELATED_P(or) = 1; -+ -+ end_sequence(); -+ -+ emit_insn_before(or, 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_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); -+ -+ for (i = 0; i < argc; ++i) -+ error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key); -+ -+ if (TARGET_64BIT == 0 || ix86_cmodel != CM_KERNEL) -+ return 0; -+ -+ 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 -urNp linux-3.0.4/tools/gcc/Makefile linux-3.0.4/tools/gcc/Makefile ---- linux-3.0.4/tools/gcc/Makefile 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/tools/gcc/Makefile 2011-09-17 00:53:44.000000000 -0400 -@@ -0,0 +1,14 @@ -+#CC := gcc -+#PLUGIN_SOURCE_FILES := pax_plugin.c -+#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES)) -+GCCPLUGINS_DIR := $(shell $(HOSTCC) -print-file-name=plugin) -+#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -+ -+HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -+ -+hostlibs-y := stackleak_plugin.so constify_plugin.so kallocstat_plugin.so kernexec_plugin.so -+always := $(hostlibs-y) -+stackleak_plugin-objs := stackleak_plugin.o -+constify_plugin-objs := constify_plugin.o -+kallocstat_plugin-objs := kallocstat_plugin.o -+kernexec_plugin-objs := kernexec_plugin.o -diff -urNp linux-3.0.4/tools/gcc/stackleak_plugin.c linux-3.0.4/tools/gcc/stackleak_plugin.c ---- linux-3.0.4/tools/gcc/stackleak_plugin.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-3.0.4/tools/gcc/stackleak_plugin.c 2011-09-17 00:53:44.000000000 -0400 -@@ -0,0 +1,251 @@ -+/* -+ * 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 "intl.h" -+#include "plugin-version.h" -+#include "tm.h" -+#include "toplev.h" -+#include "basic-block.h" -+#include "gimple.h" -+//#include "expr.h" where are you... -+#include "diagnostic.h" -+#include "rtl.h" -+#include "emit-rtl.h" -+#include "function.h" -+ -+int plugin_is_GPL_compatible; -+ -+static int track_frame_size = -1; -+static const char track_function[] = "pax_track_stack"; -+static bool init_locals; -+ -+static struct plugin_info stackleak_plugin_info = { -+ .version = "201109112100", -+ .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_stmts | TODO_dump_func -+ } -+}; -+ -+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_add_instrumentation(gimple_stmt_iterator *gsi, bool before) -+{ -+ gimple call; -+ tree fndecl, type; -+ -+ // insert call to void pax_track_stack(void) -+ type = build_function_type_list(void_type_node, NULL_TREE); -+ fndecl = build_fn_decl(track_function, type); -+ DECL_ASSEMBLER_NAME(fndecl); // for LTO -+ call = gimple_build_call(fndecl, 0); -+ if (before) -+ gsi_insert_before(gsi, call, GSI_CONTINUE_LINKING); -+ else -+ gsi_insert_after(gsi, call, GSI_CONTINUE_LINKING); -+} -+ -+static unsigned int execute_stackleak_tree_instrument(void) -+{ -+ basic_block bb, entry_bb; -+ gimple_stmt_iterator gsi; -+ bool prologue_instrumented = false; -+ -+ entry_bb = ENTRY_BLOCK_PTR_FOR_FUNCTION(cfun)->next_bb; -+ -+ // 1. loop through BBs and GIMPLE statements -+ FOR_EACH_BB(bb) { -+ for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) { -+ // gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450> -+ tree fndecl; -+ gimple stmt = gsi_stmt(gsi); -+ -+ if (!is_gimple_call(stmt)) -+ continue; -+ fndecl = gimple_call_fndecl(stmt); -+ if (!fndecl) -+ continue; -+ if (TREE_CODE(fndecl) != FUNCTION_DECL) -+ continue; -+ if (!DECL_BUILT_IN(fndecl)) -+ continue; -+ if (DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL) -+ continue; -+ if (DECL_FUNCTION_CODE(fndecl) != BUILT_IN_ALLOCA) -+ continue; -+ -+ // 2. insert track call after each __builtin_alloca call -+ stackleak_add_instrumentation(&gsi, false); -+ if (bb == entry_bb) -+ prologue_instrumented = true; -+// print_node(stderr, "pax", fndecl, 4); -+ } -+ } -+ -+ // 3. insert track call at the beginning -+ if (!prologue_instrumented) { -+ gsi = gsi_start_bb(entry_bb); -+ stackleak_add_instrumentation(&gsi, true); -+ } -+ -+ 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 -+ delete_insn_and_edges(insn); -+ } -+ -+// 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_AFTER -+ }; -+ 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 -urNp linux-3.0.4/usr/gen_init_cpio.c linux-3.0.4/usr/gen_init_cpio.c ---- linux-3.0.4/usr/gen_init_cpio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/usr/gen_init_cpio.c 2011-08-23 21:47:56.000000000 -0400 -@@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, - 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_ - *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 -urNp linux-3.0.4/virt/kvm/kvm_main.c linux-3.0.4/virt/kvm/kvm_main.c ---- linux-3.0.4/virt/kvm/kvm_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/virt/kvm/kvm_main.c 2011-08-23 21:47:56.000000000 -0400 -@@ -73,7 +73,7 @@ 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); -@@ -2176,7 +2176,7 @@ static void hardware_enable_nolock(void - - 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); - } -@@ -2230,10 +2230,10 @@ 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; - } -@@ -2498,7 +2498,7 @@ static void kvm_sched_out(struct preempt - 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; -@@ -2561,7 +2561,7 @@ int kvm_init(void *opaque, unsigned vcpu - 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; -@@ -2571,9 +2571,11 @@ int kvm_init(void *opaque, unsigned vcpu - 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-2.2.2-3.1.1-201111171911.patch b/kernel/patches/grsecurity-2.2.2-3.1.1-201111171911.patch new file mode 100644 index 0000000..0a5ebc1 --- /dev/null +++ b/kernel/patches/grsecurity-2.2.2-3.1.1-201111171911.patch @@ -0,0 +1,78322 @@ +diff -urNp linux-3.1.1/arch/alpha/include/asm/elf.h linux-3.1.1/arch/alpha/include/asm/elf.h +--- linux-3.1.1/arch/alpha/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/alpha/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -90,6 +90,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N + + #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 -urNp linux-3.1.1/arch/alpha/include/asm/pgtable.h linux-3.1.1/arch/alpha/include/asm/pgtable.h +--- linux-3.1.1/arch/alpha/include/asm/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/alpha/include/asm/pgtable.h 2011-11-16 18:39:07.000000000 -0500 +@@ -101,6 +101,17 @@ 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 -urNp linux-3.1.1/arch/alpha/kernel/module.c linux-3.1.1/arch/alpha/kernel/module.c +--- linux-3.1.1/arch/alpha/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/alpha/kernel/module.c 2011-11-16 18:39:07.000000000 -0500 +@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, + + /* 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 -urNp linux-3.1.1/arch/alpha/kernel/osf_sys.c linux-3.1.1/arch/alpha/kernel/osf_sys.c +--- linux-3.1.1/arch/alpha/kernel/osf_sys.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/alpha/kernel/osf_sys.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1147,7 +1147,7 @@ arch_get_unmapped_area_1(unsigned long a + /* 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; +@@ -1183,6 +1183,10 @@ arch_get_unmapped_area(struct file *filp + 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) +@@ -1190,8 +1194,8 @@ arch_get_unmapped_area(struct file *filp + } + + /* 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 -urNp linux-3.1.1/arch/alpha/mm/fault.c linux-3.1.1/arch/alpha/mm/fault.c +--- linux-3.1.1/arch/alpha/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/alpha/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct * + __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, +@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns + 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 -urNp linux-3.1.1/arch/arm/include/asm/elf.h linux-3.1.1/arch/arm/include/asm/elf.h +--- linux-3.1.1/arch/arm/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *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 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 +@@ -126,10 +133,6 @@ int dump_task_regs(struct task_struct *t + 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 +- + extern int vectors_user_mapping(void); + #define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping() + #define ARCH_HAS_SETUP_ADDITIONAL_PAGES +diff -urNp linux-3.1.1/arch/arm/include/asm/kmap_types.h linux-3.1.1/arch/arm/include/asm/kmap_types.h +--- linux-3.1.1/arch/arm/include/asm/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/include/asm/kmap_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -21,6 +21,7 @@ enum km_type { + KM_L1_CACHE, + KM_L2_CACHE, + KM_KDB, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff -urNp linux-3.1.1/arch/arm/include/asm/uaccess.h linux-3.1.1/arch/arm/include/asm/uaccess.h +--- linux-3.1.1/arch/arm/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 __strn + + 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 + + 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 -urNp linux-3.1.1/arch/arm/kernel/armksyms.c linux-3.1.1/arch/arm/kernel/armksyms.c +--- linux-3.1.1/arch/arm/kernel/armksyms.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/kernel/armksyms.c 2011-11-16 18:39:07.000000000 -0500 +@@ -98,8 +98,8 @@ 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 -urNp linux-3.1.1/arch/arm/kernel/process.c linux-3.1.1/arch/arm/kernel/process.c +--- linux-3.1.1/arch/arm/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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> + +@@ -481,12 +480,6 @@ unsigned long get_wchan(struct task_stru + 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 -urNp linux-3.1.1/arch/arm/kernel/traps.c linux-3.1.1/arch/arm/kernel/traps.c +--- linux-3.1.1/arch/arm/kernel/traps.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/kernel/traps.c 2011-11-16 18:40:08.000000000 -0500 +@@ -257,6 +257,8 @@ static int __die(const char *str, int er + + static DEFINE_SPINLOCK(die_lock); + ++extern void gr_handle_kernel_exploit(void); ++ + /* + * This function is protected against re-entrancy. + */ +@@ -284,6 +286,9 @@ void die(const char *str, struct pt_regs + panic("Fatal exception in interrupt"); + if (panic_on_oops) + panic("Fatal exception"); ++ ++ gr_handle_kernel_exploit(); ++ + if (ret != NOTIFY_STOP) + do_exit(SIGSEGV); + } +diff -urNp linux-3.1.1/arch/arm/lib/copy_from_user.S linux-3.1.1/arch/arm/lib/copy_from_user.S +--- linux-3.1.1/arch/arm/lib/copy_from_user.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/lib/copy_from_user.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/arm/lib/copy_to_user.S linux-3.1.1/arch/arm/lib/copy_to_user.S +--- linux-3.1.1/arch/arm/lib/copy_to_user.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/lib/copy_to_user.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/arm/lib/uaccess.S linux-3.1.1/arch/arm/lib/uaccess.S +--- linux-3.1.1/arch/arm/lib/uaccess.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/lib/uaccess.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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( T(strgtb) r3, [r0], #1) @ May f + 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( T(strgeb) r3, [r0], #1) @ May f + ldrgtb r3, [r1], #0 + USER( T(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( T(ldrgtb) r3, [r1], #1) @ May f + 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( T(ldrgeb) r3, [r1], #1) @ May f + USER( T(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 -urNp linux-3.1.1/arch/arm/lib/uaccess_with_memcpy.c linux-3.1.1/arch/arm/lib/uaccess_with_memcpy.c +--- linux-3.1.1/arch/arm/lib/uaccess_with_memcpy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/lib/uaccess_with_memcpy.c 2011-11-16 18:39:07.000000000 -0500 +@@ -103,7 +103,7 @@ 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 -urNp linux-3.1.1/arch/arm/mach-ux500/mbox-db5500.c linux-3.1.1/arch/arm/mach-ux500/mbox-db5500.c +--- linux-3.1.1/arch/arm/mach-ux500/mbox-db5500.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/mach-ux500/mbox-db5500.c 2011-11-16 18:40:08.000000000 -0500 +@@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct dev + return sprintf(buf, "0x%X\n", mbox_value); + } + +-static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo); ++static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo); + + static int mbox_show(struct seq_file *s, void *data) + { +diff -urNp linux-3.1.1/arch/arm/mm/fault.c linux-3.1.1/arch/arm/mm/fault.c +--- linux-3.1.1/arch/arm/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -182,6 +182,13 @@ __do_user_fault(struct task_struct *tsk, + } + #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; +@@ -383,6 +390,33 @@ do_page_fault(unsigned long addr, unsign + } + #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 + * +diff -urNp linux-3.1.1/arch/arm/mm/mmap.c linux-3.1.1/arch/arm/mm/mmap.c +--- linux-3.1.1/arch/arm/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/arm/mm/mmap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -65,6 +65,10 @@ arch_get_unmapped_area(struct file *filp + 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); +@@ -72,15 +76,14 @@ arch_get_unmapped_area(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(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; + } + /* 8 bits of randomness in 20 address space bits */ + if ((current->flags & PF_RANDOMIZE) && +@@ -100,14 +103,14 @@ 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: + */ +diff -urNp linux-3.1.1/arch/avr32/include/asm/elf.h linux-3.1.1/arch/avr32/include/asm/elf.h +--- linux-3.1.1/arch/avr32/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/avr32/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpreg + 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 -urNp linux-3.1.1/arch/avr32/include/asm/kmap_types.h linux-3.1.1/arch/avr32/include/asm/kmap_types.h +--- linux-3.1.1/arch/avr32/include/asm/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/avr32/include/asm/kmap_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/avr32/mm/fault.c linux-3.1.1/arch/avr32/mm/fault.c +--- linux-3.1.1/arch/avr32/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/avr32/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru + + 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 -urNp linux-3.1.1/arch/frv/include/asm/kmap_types.h linux-3.1.1/arch/frv/include/asm/kmap_types.h +--- linux-3.1.1/arch/frv/include/asm/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/frv/include/asm/kmap_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -23,6 +23,7 @@ enum km_type { + KM_IRQ1, + KM_SOFTIRQ0, + KM_SOFTIRQ1, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff -urNp linux-3.1.1/arch/frv/mm/elf-fdpic.c linux-3.1.1/arch/frv/mm/elf-fdpic.c +--- linux-3.1.1/arch/frv/mm/elf-fdpic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/frv/mm/elf-fdpic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(str + 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(str + 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(str + 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 -urNp linux-3.1.1/arch/ia64/include/asm/elf.h linux-3.1.1/arch/ia64/include/asm/elf.h +--- linux-3.1.1/arch/ia64/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/ia64/include/asm/pgtable.h linux-3.1.1/arch/ia64/include/asm/pgtable.h +--- linux-3.1.1/arch/ia64/include/asm/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/include/asm/pgtable.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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> +@@ -143,6 +143,17 @@ + #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 -urNp linux-3.1.1/arch/ia64/include/asm/spinlock.h linux-3.1.1/arch/ia64/include/asm/spinlock.h +--- linux-3.1.1/arch/ia64/include/asm/spinlock.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/include/asm/spinlock.h 2011-11-16 18:39:07.000000000 -0500 +@@ -72,7 +72,7 @@ static __always_inline void __ticket_spi + 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 -urNp linux-3.1.1/arch/ia64/include/asm/uaccess.h linux-3.1.1/arch/ia64/include/asm/uaccess.h +--- linux-3.1.1/arch/ia64/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void _ + 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 _ + 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 -urNp linux-3.1.1/arch/ia64/kernel/module.c linux-3.1.1/arch/ia64/kernel/module.c +--- linux-3.1.1/arch/ia64/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/kernel/module.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 *ehd + } + + 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_ + 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, + * 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 -urNp linux-3.1.1/arch/ia64/kernel/sys_ia64.c linux-3.1.1/arch/ia64/kernel/sys_ia64.c +--- linux-3.1.1/arch/ia64/kernel/sys_ia64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/kernel/sys_ia64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil + 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 *fil + 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 -urNp linux-3.1.1/arch/ia64/kernel/vmlinux.lds.S linux-3.1.1/arch/ia64/kernel/vmlinux.lds.S +--- linux-3.1.1/arch/ia64/kernel/vmlinux.lds.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/kernel/vmlinux.lds.S 2011-11-16 18:39:07.000000000 -0500 +@@ -199,7 +199,7 @@ 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 -urNp linux-3.1.1/arch/ia64/mm/fault.c linux-3.1.1/arch/ia64/mm/fault.c +--- linux-3.1.1/arch/ia64/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -73,6 +73,23 @@ mapped_kernel_page_is_present (unsigned + 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) + { +@@ -146,9 +163,23 @@ ia64_do_page_fault (unsigned long addres + 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 -urNp linux-3.1.1/arch/ia64/mm/hugetlbpage.c linux-3.1.1/arch/ia64/mm/hugetlbpage.c +--- linux-3.1.1/arch/ia64/mm/hugetlbpage.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/mm/hugetlbpage.c 2011-11-16 18:39:07.000000000 -0500 +@@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area( + /* 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 -urNp linux-3.1.1/arch/ia64/mm/init.c linux-3.1.1/arch/ia64/mm/init.c +--- linux-3.1.1/arch/ia64/mm/init.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/ia64/mm/init.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/m32r/lib/usercopy.c linux-3.1.1/arch/m32r/lib/usercopy.c +--- linux-3.1.1/arch/m32r/lib/usercopy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/m32r/lib/usercopy.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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, + 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 -urNp linux-3.1.1/arch/mips/include/asm/elf.h linux-3.1.1/arch/mips/include/asm/elf.h +--- linux-3.1.1/arch/mips/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/mips/include/asm/page.h linux-3.1.1/arch/mips/include/asm/page.h +--- linux-3.1.1/arch/mips/include/asm/page.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/include/asm/page.h 2011-11-16 18:39:07.000000000 -0500 +@@ -93,7 +93,7 @@ extern void copy_user_highpage(struct pa + #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 -urNp linux-3.1.1/arch/mips/include/asm/system.h linux-3.1.1/arch/mips/include/asm/system.h +--- linux-3.1.1/arch/mips/include/asm/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/include/asm/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -230,6 +230,6 @@ extern void per_cpu_trap_init(void); + */ + #define __ARCH_WANT_UNLOCKED_CTXSW + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + #endif /* _ASM_SYSTEM_H */ +diff -urNp linux-3.1.1/arch/mips/kernel/binfmt_elfn32.c linux-3.1.1/arch/mips/kernel/binfmt_elfn32.c +--- linux-3.1.1/arch/mips/kernel/binfmt_elfn32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/kernel/binfmt_elfn32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N + #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 -urNp linux-3.1.1/arch/mips/kernel/binfmt_elfo32.c linux-3.1.1/arch/mips/kernel/binfmt_elfo32.c +--- linux-3.1.1/arch/mips/kernel/binfmt_elfo32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/kernel/binfmt_elfo32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N + #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 -urNp linux-3.1.1/arch/mips/kernel/process.c linux-3.1.1/arch/mips/kernel/process.c +--- linux-3.1.1/arch/mips/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -481,15 +481,3 @@ unsigned long get_wchan(struct task_stru + 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 -urNp linux-3.1.1/arch/mips/mm/fault.c linux-3.1.1/arch/mips/mm/fault.c +--- linux-3.1.1/arch/mips/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -28,6 +28,23 @@ + #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 -urNp linux-3.1.1/arch/mips/mm/mmap.c linux-3.1.1/arch/mips/mm/mmap.c +--- linux-3.1.1/arch/mips/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/mips/mm/mmap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -95,6 +95,11 @@ static unsigned long arch_get_unmapped_a + 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_a + 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_a + /* 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_a + /* 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_a + * 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_str + 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 -urNp linux-3.1.1/arch/parisc/include/asm/elf.h linux-3.1.1/arch/parisc/include/asm/elf.h +--- linux-3.1.1/arch/parisc/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/parisc/include/asm/pgtable.h linux-3.1.1/arch/parisc/include/asm/pgtable.h +--- linux-3.1.1/arch/parisc/include/asm/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/include/asm/pgtable.h 2011-11-16 18:39:07.000000000 -0500 +@@ -210,6 +210,17 @@ 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 -urNp linux-3.1.1/arch/parisc/kernel/module.c linux-3.1.1/arch/parisc/kernel/module.c +--- linux-3.1.1/arch/parisc/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/kernel/module.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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_ + } + + /* 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 = 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.got_offset = me->core_size_rw; ++ me->core_size_rw += gots * sizeof(struct got_entry); ++ ++ 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 + + 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 + #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 + + /* 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 -urNp linux-3.1.1/arch/parisc/kernel/sys_parisc.c linux-3.1.1/arch/parisc/kernel/sys_parisc.c +--- linux-3.1.1/arch/parisc/kernel/sys_parisc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/kernel/sys_parisc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -43,7 +43,7 @@ static unsigned long get_unshared_area(u + /* 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(str + /* 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(str + 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 -urNp linux-3.1.1/arch/parisc/kernel/traps.c linux-3.1.1/arch/parisc/kernel/traps.c +--- linux-3.1.1/arch/parisc/kernel/traps.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/kernel/traps.c 2011-11-16 18:39:07.000000000 -0500 +@@ -733,9 +733,7 @@ void notrace handle_interruption(int cod + + 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 -urNp linux-3.1.1/arch/parisc/mm/fault.c linux-3.1.1/arch/parisc/mm/fault.c +--- linux-3.1.1/arch/parisc/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/parisc/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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, ex + 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, unsign + } + #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 -urNp linux-3.1.1/arch/powerpc/include/asm/elf.h linux-3.1.1/arch/powerpc/include/asm/elf.h +--- linux-3.1.1/arch/powerpc/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E + 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(s + (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 -urNp linux-3.1.1/arch/powerpc/include/asm/kmap_types.h linux-3.1.1/arch/powerpc/include/asm/kmap_types.h +--- linux-3.1.1/arch/powerpc/include/asm/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/kmap_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -27,6 +27,7 @@ enum km_type { + KM_PPC_SYNC_PAGE, + KM_PPC_SYNC_ICACHE, + KM_KDB, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff -urNp linux-3.1.1/arch/powerpc/include/asm/mman.h linux-3.1.1/arch/powerpc/include/asm/mman.h +--- linux-3.1.1/arch/powerpc/include/asm/mman.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/mman.h 2011-11-16 18:39:07.000000000 -0500 +@@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm + } + #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 -urNp linux-3.1.1/arch/powerpc/include/asm/page_64.h linux-3.1.1/arch/powerpc/include/asm/page_64.h +--- linux-3.1.1/arch/powerpc/include/asm/page_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/page_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -155,15 +155,18 @@ 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 -urNp linux-3.1.1/arch/powerpc/include/asm/page.h linux-3.1.1/arch/powerpc/include/asm/page.h +--- linux-3.1.1/arch/powerpc/include/asm/page.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/page.h 2011-11-16 18:39:07.000000000 -0500 +@@ -129,8 +129,9 @@ extern phys_addr_t kernstart_addr; + * 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) +@@ -158,6 +159,9 @@ extern phys_addr_t kernstart_addr; + #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) + #endif + ++#define ktla_ktva(addr) (addr) ++#define ktva_ktla(addr) (addr) ++ + #ifndef __ASSEMBLY__ + + #undef STRICT_MM_TYPECHECKS +diff -urNp linux-3.1.1/arch/powerpc/include/asm/pgtable.h linux-3.1.1/arch/powerpc/include/asm/pgtable.h +--- linux-3.1.1/arch/powerpc/include/asm/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/pgtable.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/powerpc/include/asm/pte-hash32.h linux-3.1.1/arch/powerpc/include/asm/pte-hash32.h +--- linux-3.1.1/arch/powerpc/include/asm/pte-hash32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/pte-hash32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/powerpc/include/asm/reg.h linux-3.1.1/arch/powerpc/include/asm/reg.h +--- linux-3.1.1/arch/powerpc/include/asm/reg.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/reg.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/powerpc/include/asm/system.h linux-3.1.1/arch/powerpc/include/asm/system.h +--- linux-3.1.1/arch/powerpc/include/asm/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -530,7 +530,7 @@ __cmpxchg_local(volatile void *ptr, unsi + #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) + #endif + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + /* Used in very early kernel initialization. */ + extern unsigned long reloc_offset(void); +diff -urNp linux-3.1.1/arch/powerpc/include/asm/uaccess.h linux-3.1.1/arch/powerpc/include/asm/uaccess.h +--- linux-3.1.1/arch/powerpc/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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_ + 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_us + 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_us + 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 -urNp linux-3.1.1/arch/powerpc/kernel/exceptions-64e.S linux-3.1.1/arch/powerpc/kernel/exceptions-64e.S +--- linux-3.1.1/arch/powerpc/kernel/exceptions-64e.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/exceptions-64e.S 2011-11-16 18:39:07.000000000 -0500 +@@ -587,6 +587,7 @@ 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) +@@ -596,8 +597,7 @@ 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 -urNp linux-3.1.1/arch/powerpc/kernel/exceptions-64s.S linux-3.1.1/arch/powerpc/kernel/exceptions-64s.S +--- linux-3.1.1/arch/powerpc/kernel/exceptions-64s.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/exceptions-64s.S 2011-11-16 18:39:07.000000000 -0500 +@@ -1014,10 +1014,10 @@ 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+ 13f +- bl .save_nvgprs + mr r5,r3 + addi r3,r1,STACK_FRAME_OVERHEAD + lwz r4,_DAR(r1) +diff -urNp linux-3.1.1/arch/powerpc/kernel/module_32.c linux-3.1.1/arch/powerpc/kernel/module_32.c +--- linux-3.1.1/arch/powerpc/kernel/module_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/module_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr + 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 *locati + + 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 -urNp linux-3.1.1/arch/powerpc/kernel/process.c linux-3.1.1/arch/powerpc/kernel/process.c +--- linux-3.1.1/arch/powerpc/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/process.c 2011-11-16 18:40:08.000000000 -0500 +@@ -682,8 +682,8 @@ 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)) +@@ -1187,10 +1187,10 @@ void show_stack(struct task_struct *tsk, + 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--; + } +@@ -1210,7 +1210,7 @@ void show_stack(struct task_struct *tsk, + 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; + } +@@ -1285,58 +1285,3 @@ 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 -urNp linux-3.1.1/arch/powerpc/kernel/signal_32.c linux-3.1.1/arch/powerpc/kernel/signal_32.c +--- linux-3.1.1/arch/powerpc/kernel/signal_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/signal_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -859,7 +859,7 @@ int handle_rt_signal32(unsigned long sig + /* 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 -urNp linux-3.1.1/arch/powerpc/kernel/signal_64.c linux-3.1.1/arch/powerpc/kernel/signal_64.c +--- linux-3.1.1/arch/powerpc/kernel/signal_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/signal_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct + 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 -urNp linux-3.1.1/arch/powerpc/kernel/traps.c linux-3.1.1/arch/powerpc/kernel/traps.c +--- linux-3.1.1/arch/powerpc/kernel/traps.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/traps.c 2011-11-16 18:40:08.000000000 -0500 +@@ -98,6 +98,8 @@ static void pmac_backlight_unblank(void) + static inline void pmac_backlight_unblank(void) { } + #endif + ++extern void gr_handle_kernel_exploit(void); ++ + int die(const char *str, struct pt_regs *regs, long err) + { + static struct { +@@ -171,6 +173,8 @@ int die(const char *str, struct pt_regs + if (panic_on_oops) + panic("Fatal exception"); + ++ gr_handle_kernel_exploit(); ++ + oops_exit(); + do_exit(err); + +diff -urNp linux-3.1.1/arch/powerpc/kernel/vdso.c linux-3.1.1/arch/powerpc/kernel/vdso.c +--- linux-3.1.1/arch/powerpc/kernel/vdso.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/kernel/vdso.c 2011-11-16 18:39:07.000000000 -0500 +@@ -36,6 +36,7 @@ + #include <asm/firmware.h> + #include <asm/vdso.h> + #include <asm/vdso_datapage.h> ++#include <asm/mman.h> + + #include "setup.h" + +@@ -220,7 +221,7 @@ int arch_setup_additional_pages(struct l + 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 +@@ -240,7 +241,7 @@ int arch_setup_additional_pages(struct l + 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 -urNp linux-3.1.1/arch/powerpc/lib/usercopy_64.c linux-3.1.1/arch/powerpc/lib/usercopy_64.c +--- linux-3.1.1/arch/powerpc/lib/usercopy_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/lib/usercopy_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 * + return n; + } + +-EXPORT_SYMBOL(copy_from_user); +-EXPORT_SYMBOL(copy_to_user); + EXPORT_SYMBOL(copy_in_user); + +diff -urNp linux-3.1.1/arch/powerpc/mm/fault.c linux-3.1.1/arch/powerpc/mm/fault.c +--- linux-3.1.1/arch/powerpc/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/mm/fault.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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> +@@ -43,6 +47,7 @@ + #include <asm/tlbflush.h> + #include <asm/siginfo.h> + #include <mm/mmu_decl.h> ++#include <asm/ptrace.h> + + #ifdef CONFIG_KPROBES + static inline int notify_page_fault(struct pt_regs *regs) +@@ -66,6 +71,33 @@ static inline int notify_page_fault(stru + } + #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. +@@ -136,7 +168,7 @@ int __kprobes do_page_fault(struct pt_re + * 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 +@@ -259,7 +291,7 @@ 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 */ +@@ -274,7 +306,7 @@ 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 */ + +@@ -343,6 +375,23 @@ 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 -urNp linux-3.1.1/arch/powerpc/mm/mmap_64.c linux-3.1.1/arch/powerpc/mm/mmap_64.c +--- linux-3.1.1/arch/powerpc/mm/mmap_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/mm/mmap_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -99,10 +99,22 @@ void arch_pick_mmap_layout(struct mm_str + */ + 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 -urNp linux-3.1.1/arch/powerpc/mm/slice.c linux-3.1.1/arch/powerpc/mm/slice.c +--- linux-3.1.1/arch/powerpc/mm/slice.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/powerpc/mm/slice.c 2011-11-16 18:39:07.000000000 -0500 +@@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_ + 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_top + } + } + +- 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_top + * 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_top + 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(un + 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 -urNp linux-3.1.1/arch/s390/include/asm/elf.h linux-3.1.1/arch/s390/include/asm/elf.h +--- linux-3.1.1/arch/s390/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -162,8 +162,14 @@ 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. */ +@@ -211,7 +217,4 @@ 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 -urNp linux-3.1.1/arch/s390/include/asm/system.h linux-3.1.1/arch/s390/include/asm/system.h +--- linux-3.1.1/arch/s390/include/asm/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/include/asm/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -256,7 +256,7 @@ extern void (*_machine_restart)(char *co + extern void (*_machine_halt)(void); + extern void (*_machine_power_off)(void); + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + static inline int tprot(unsigned long addr) + { +diff -urNp linux-3.1.1/arch/s390/include/asm/uaccess.h linux-3.1.1/arch/s390/include/asm/uaccess.h +--- linux-3.1.1/arch/s390/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -235,6 +235,10 @@ 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; +@@ -260,6 +264,9 @@ copy_to_user(void __user *to, const void + 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 +@@ -294,6 +301,10 @@ copy_from_user(void *to, const void __us + unsigned int sz = __compiletime_object_size(to); + + might_fault(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (unlikely(sz != -1 && sz < n)) { + copy_from_user_overflow(); + return n; +diff -urNp linux-3.1.1/arch/s390/kernel/module.c linux-3.1.1/arch/s390/kernel/module.c +--- linux-3.1.1/arch/s390/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/kernel/module.c 2011-11-16 18:39:07.000000000 -0500 +@@ -161,11 +161,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, + + /* 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 + 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 + 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 + 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 + 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 + 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 + 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 -urNp linux-3.1.1/arch/s390/kernel/process.c linux-3.1.1/arch/s390/kernel/process.c +--- linux-3.1.1/arch/s390/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -319,39 +319,3 @@ unsigned long get_wchan(struct task_stru + } + 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 -urNp linux-3.1.1/arch/s390/kernel/setup.c linux-3.1.1/arch/s390/kernel/setup.c +--- linux-3.1.1/arch/s390/kernel/setup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/kernel/setup.c 2011-11-16 18:39:07.000000000 -0500 +@@ -271,7 +271,7 @@ static int __init early_parse_mem(char * + } + early_param("mem", early_parse_mem); + +-unsigned int user_mode = HOME_SPACE_MODE; ++unsigned int user_mode = SECONDARY_SPACE_MODE; + EXPORT_SYMBOL_GPL(user_mode); + + static int set_amode_and_uaccess(unsigned long user_amode, +diff -urNp linux-3.1.1/arch/s390/mm/mmap.c linux-3.1.1/arch/s390/mm/mmap.c +--- linux-3.1.1/arch/s390/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/s390/mm/mmap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_str + */ + 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_str + */ + 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 -urNp linux-3.1.1/arch/score/include/asm/system.h linux-3.1.1/arch/score/include/asm/system.h +--- linux-3.1.1/arch/score/include/asm/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/score/include/asm/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -17,7 +17,7 @@ do { \ + #define finish_arch_switch(prev) do {} while (0) + + typedef void (*vi_handler_t)(void); +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) (x) + + #define mb() barrier() + #define rmb() barrier() +diff -urNp linux-3.1.1/arch/score/kernel/process.c linux-3.1.1/arch/score/kernel/process.c +--- linux-3.1.1/arch/score/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/score/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -161,8 +161,3 @@ unsigned long get_wchan(struct task_stru + + return task_pt_regs(task)->cp0_epc; + } +- +-unsigned long arch_align_stack(unsigned long sp) +-{ +- return sp; +-} +diff -urNp linux-3.1.1/arch/sh/mm/mmap.c linux-3.1.1/arch/sh/mm/mmap.c +--- linux-3.1.1/arch/sh/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sh/mm/mmap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(str + 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 fi + 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 fi + /* 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 fi + 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 fi + 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 -urNp linux-3.1.1/arch/sparc/include/asm/atomic_64.h linux-3.1.1/arch/sparc/include/asm/atomic_64.h +--- linux-3.1.1/arch/sparc/include/asm/atomic_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/atomic_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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, atomi + #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, atomi + * 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, atomi + #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; +@@ -89,20 +166,35 @@ static inline int __atomic_add_unless(at + #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 -urNp linux-3.1.1/arch/sparc/include/asm/cache.h linux-3.1.1/arch/sparc/include/asm/cache.h +--- linux-3.1.1/arch/sparc/include/asm/cache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/cache.h 2011-11-16 18:39:07.000000000 -0500 +@@ -10,7 +10,7 @@ + #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) + + #define L1_CACHE_SHIFT 5 +-#define L1_CACHE_BYTES 32 ++#define L1_CACHE_BYTES 32UL + + #ifdef CONFIG_SPARC32 + #define SMP_CACHE_BYTES_SHIFT 5 +diff -urNp linux-3.1.1/arch/sparc/include/asm/elf_32.h linux-3.1.1/arch/sparc/include/asm/elf_32.h +--- linux-3.1.1/arch/sparc/include/asm/elf_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/elf_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/include/asm/elf_64.h linux-3.1.1/arch/sparc/include/asm/elf_64.h +--- linux-3.1.1/arch/sparc/include/asm/elf_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/elf_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/include/asm/pgtable_32.h linux-3.1.1/arch/sparc/include/asm/pgtable_32.h +--- linux-3.1.1/arch/sparc/include/asm/pgtable_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/pgtable_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/include/asm/pgtsrmmu.h linux-3.1.1/arch/sparc/include/asm/pgtsrmmu.h +--- linux-3.1.1/arch/sparc/include/asm/pgtsrmmu.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/pgtsrmmu.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/include/asm/spinlock_64.h linux-3.1.1/arch/sparc/include/asm/spinlock_64.h +--- linux-3.1.1/arch/sparc/include/asm/spinlock_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/spinlock_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags( + + /* 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_r + " .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 + "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 + 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 + : "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_ + : "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(arc + : "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 -urNp linux-3.1.1/arch/sparc/include/asm/thread_info_32.h linux-3.1.1/arch/sparc/include/asm/thread_info_32.h +--- linux-3.1.1/arch/sparc/include/asm/thread_info_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/thread_info_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -50,6 +50,8 @@ struct thread_info { + unsigned long w_saved; + + struct restart_block restart_block; ++ ++ unsigned long lowest_stack; + }; + + /* +diff -urNp linux-3.1.1/arch/sparc/include/asm/thread_info_64.h linux-3.1.1/arch/sparc/include/asm/thread_info_64.h +--- linux-3.1.1/arch/sparc/include/asm/thread_info_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/thread_info_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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))); + }; + +diff -urNp linux-3.1.1/arch/sparc/include/asm/uaccess_32.h linux-3.1.1/arch/sparc/include/asm/uaccess_32.h +--- linux-3.1.1/arch/sparc/include/asm/uaccess_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/uaccess_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -249,27 +249,46 @@ extern unsigned long __copy_user(void __ + + 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 -urNp linux-3.1.1/arch/sparc/include/asm/uaccess_64.h linux-3.1.1/arch/sparc/include/asm/uaccess_64.h +--- linux-3.1.1/arch/sparc/include/asm/uaccess_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/uaccess_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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/system.h> + #include <asm/spitfire.h> +@@ -213,8 +214,15 @@ extern unsigned long copy_from_user_fixu + 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); + +@@ -230,8 +238,15 @@ extern unsigned long copy_to_user_fixup( + 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 -urNp linux-3.1.1/arch/sparc/include/asm/uaccess.h linux-3.1.1/arch/sparc/include/asm/uaccess.h +--- linux-3.1.1/arch/sparc/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/kernel/Makefile linux-3.1.1/arch/sparc/kernel/Makefile +--- linux-3.1.1/arch/sparc/kernel/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -3,7 +3,7 @@ + # + + asflags-y := -ansi +-ccflags-y := -Werror ++#ccflags-y := -Werror + + extra-y := head_$(BITS).o + extra-y += init_task.o +diff -urNp linux-3.1.1/arch/sparc/kernel/process_32.c linux-3.1.1/arch/sparc/kernel/process_32.c +--- linux-3.1.1/arch/sparc/kernel/process_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/process_32.c 2011-11-16 18:40:08.000000000 -0500 +@@ -204,7 +204,7 @@ 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); +@@ -271,14 +271,14 @@ 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], +@@ -313,7 +313,7 @@ void show_stack(struct task_struct *tsk, + 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 -urNp linux-3.1.1/arch/sparc/kernel/process_64.c linux-3.1.1/arch/sparc/kernel/process_64.c +--- linux-3.1.1/arch/sparc/kernel/process_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/process_64.c 2011-11-16 18:40:08.000000000 -0500 +@@ -180,14 +180,14 @@ static void show_regwindow(struct pt_reg + 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]); +@@ -200,7 +200,7 @@ 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]); + } +@@ -285,7 +285,7 @@ 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 -urNp linux-3.1.1/arch/sparc/kernel/sys_sparc_32.c linux-3.1.1/arch/sparc/kernel/sys_sparc_32.c +--- linux-3.1.1/arch/sparc/kernel/sys_sparc_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/sys_sparc_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str + 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(str + } + 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 -urNp linux-3.1.1/arch/sparc/kernel/sys_sparc_64.c linux-3.1.1/arch/sparc/kernel/sys_sparc_64.c +--- linux-3.1.1/arch/sparc/kernel/sys_sparc_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/sys_sparc_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str + /* 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(str + 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(str + 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 fi + /* 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 fi + 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 fi + /* 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 fi + 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 fi + 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_str + 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_str + 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 -urNp linux-3.1.1/arch/sparc/kernel/traps_32.c linux-3.1.1/arch/sparc/kernel/traps_32.c +--- linux-3.1.1/arch/sparc/kernel/traps_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/traps_32.c 2011-11-16 18:40:08.000000000 -0500 +@@ -44,6 +44,8 @@ static void instruction_dump(unsigned lo + #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_ + 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 -urNp linux-3.1.1/arch/sparc/kernel/traps_64.c linux-3.1.1/arch/sparc/kernel/traps_64.c +--- linux-3.1.1/arch/sparc/kernel/traps_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/traps_64.c 2011-11-16 18:40:08.000000000 -0500 +@@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_ + 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 -= 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 + 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->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, + 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, + 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_r + + 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_r + + 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, + 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_ + 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_ + 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_ + } + 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 -urNp linux-3.1.1/arch/sparc/kernel/unaligned_64.c linux-3.1.1/arch/sparc/kernel/unaligned_64.c +--- linux-3.1.1/arch/sparc/kernel/unaligned_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/kernel/unaligned_64.c 2011-11-16 18:40:08.000000000 -0500 +@@ -279,7 +279,7 @@ static void log_unaligned(struct pt_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 -urNp linux-3.1.1/arch/sparc/lib/atomic_64.S linux-3.1.1/arch/sparc/lib/atomic_64.S +--- linux-3.1.1/arch/sparc/lib/atomic_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/lib/atomic_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 = at + 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 = at + 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 + 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 + 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 = + 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 = + 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, %o + 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 -urNp linux-3.1.1/arch/sparc/lib/ksyms.c linux-3.1.1/arch/sparc/lib/ksyms.c +--- linux-3.1.1/arch/sparc/lib/ksyms.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/lib/ksyms.c 2011-11-16 18:39:07.000000000 -0500 +@@ -142,12 +142,18 @@ 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 -urNp linux-3.1.1/arch/sparc/lib/Makefile linux-3.1.1/arch/sparc/lib/Makefile +--- linux-3.1.1/arch/sparc/lib/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/lib/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/Makefile linux-3.1.1/arch/sparc/Makefile +--- linux-3.1.1/arch/sparc/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/Makefile 2011-11-16 18:40:08.000000000 -0500 +@@ -75,7 +75,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc + # 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 -urNp linux-3.1.1/arch/sparc/mm/fault_32.c linux-3.1.1/arch/sparc/mm/fault_32.c +--- linux-3.1.1/arch/sparc/mm/fault_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/fault_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -22,6 +22,9 @@ + #include <linux/interrupt.h> + #include <linux/module.h> + #include <linux/kdebug.h> ++#include <linux/slab.h> ++#include <linux/pagemap.h> ++#include <linux/compiler.h> + + #include <asm/system.h> + #include <asm/page.h> +@@ -209,6 +212,268 @@ static unsigned long compute_si_addr(str + 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) + { +@@ -281,6 +546,24 @@ 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 -urNp linux-3.1.1/arch/sparc/mm/fault_64.c linux-3.1.1/arch/sparc/mm/fault_64.c +--- linux-3.1.1/arch/sparc/mm/fault_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/fault_64.c 2011-11-16 18:40:08.000000000 -0500 +@@ -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(stru + 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_32b + 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; +@@ -340,6 +794,29 @@ asmlinkage void __kprobes do_sparc64_fau + 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 -urNp linux-3.1.1/arch/sparc/mm/hugetlbpage.c linux-3.1.1/arch/sparc/mm/hugetlbpage.c +--- linux-3.1.1/arch/sparc/mm/hugetlbpage.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/hugetlbpage.c 2011-11-16 18:39:07.000000000 -0500 +@@ -68,7 +68,7 @@ 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: + */ +@@ -107,7 +107,7 @@ hugetlb_get_unmapped_area_topdown(struct + /* 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); + } +@@ -116,16 +116,17 @@ hugetlb_get_unmapped_area_topdown(struct + 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); + } +@@ -135,8 +136,8 @@ hugetlb_get_unmapped_area_topdown(struct + 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: + /* +@@ -182,8 +183,7 @@ hugetlb_get_unmapped_area(struct file *f + 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 -urNp linux-3.1.1/arch/sparc/mm/init_32.c linux-3.1.1/arch/sparc/mm/init_32.c +--- linux-3.1.1/arch/sparc/mm/init_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/init_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -316,6 +316,9 @@ 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) { +@@ -344,17 +347,17 @@ 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 -urNp linux-3.1.1/arch/sparc/mm/Makefile linux-3.1.1/arch/sparc/mm/Makefile +--- linux-3.1.1/arch/sparc/mm/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/sparc/mm/srmmu.c linux-3.1.1/arch/sparc/mm/srmmu.c +--- linux-3.1.1/arch/sparc/mm/srmmu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/sparc/mm/srmmu.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/um/include/asm/kmap_types.h linux-3.1.1/arch/um/include/asm/kmap_types.h +--- linux-3.1.1/arch/um/include/asm/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/include/asm/kmap_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -23,6 +23,7 @@ enum km_type { + KM_IRQ1, + KM_SOFTIRQ0, + KM_SOFTIRQ1, ++ KM_CLEARPAGE, + KM_TYPE_NR + }; + +diff -urNp linux-3.1.1/arch/um/include/asm/page.h linux-3.1.1/arch/um/include/asm/page.h +--- linux-3.1.1/arch/um/include/asm/page.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/include/asm/page.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/um/kernel/process.c linux-3.1.1/arch/um/kernel/process.c +--- linux-3.1.1/arch/um/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/um/Makefile linux-3.1.1/arch/um/Makefile +--- linux-3.1.1/arch/um/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -49,6 +49,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINE + $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \ + $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 + ++ifdef CONSTIFY_PLUGIN ++USER_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify ++endif ++ + include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) + + #This will adjust *FLAGS accordingly to the platform. +diff -urNp linux-3.1.1/arch/um/sys-i386/shared/sysdep/system.h linux-3.1.1/arch/um/sys-i386/shared/sysdep/system.h +--- linux-3.1.1/arch/um/sys-i386/shared/sysdep/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/sys-i386/shared/sysdep/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -17,7 +17,7 @@ + # define AT_VECTOR_SIZE_ARCH 1 + #endif + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + void default_idle(void); + +diff -urNp linux-3.1.1/arch/um/sys-i386/syscalls.c linux-3.1.1/arch/um/sys-i386/syscalls.c +--- linux-3.1.1/arch/um/sys-i386/syscalls.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/sys-i386/syscalls.c 2011-11-16 18:39:07.000000000 -0500 +@@ -11,6 +11,21 @@ + #include "asm/uaccess.h" + #include "asm/unistd.h" + ++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) ++{ ++ 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; ++} ++ + /* + * The prototype on i386 is: + * +diff -urNp linux-3.1.1/arch/um/sys-x86_64/shared/sysdep/system.h linux-3.1.1/arch/um/sys-x86_64/shared/sysdep/system.h +--- linux-3.1.1/arch/um/sys-x86_64/shared/sysdep/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/um/sys-x86_64/shared/sysdep/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -17,7 +17,7 @@ + # define AT_VECTOR_SIZE_ARCH 1 + #endif + +-extern unsigned long arch_align_stack(unsigned long sp); ++#define arch_align_stack(x) ((x) & ~0xfUL) + + void default_idle(void); + +diff -urNp linux-3.1.1/arch/x86/boot/bitops.h linux-3.1.1/arch/x86/boot/bitops.h +--- linux-3.1.1/arch/x86/boot/bitops.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/bitops.h 2011-11-16 18:39:07.000000000 -0500 +@@ -26,7 +26,7 @@ static inline int variable_test_bit(int + 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 + + 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 -urNp linux-3.1.1/arch/x86/boot/boot.h linux-3.1.1/arch/x86/boot/boot.h +--- linux-3.1.1/arch/x86/boot/boot.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/boot.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + 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 -urNp linux-3.1.1/arch/x86/boot/compressed/head_32.S linux-3.1.1/arch/x86/boot/compressed/head_32.S +--- linux-3.1.1/arch/x86/boot/compressed/head_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/compressed/head_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -76,7 +76,7 @@ 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 */ +@@ -162,7 +162,7 @@ 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. +@@ -170,8 +170,7 @@ 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 -urNp linux-3.1.1/arch/x86/boot/compressed/head_64.S linux-3.1.1/arch/x86/boot/compressed/head_64.S +--- linux-3.1.1/arch/x86/boot/compressed/head_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/compressed/head_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 */ +@@ -233,7 +233,7 @@ ENTRY(startup_64) + notq %rax + andq %rax, %rbp + #else +- movq $LOAD_PHYSICAL_ADDR, %rbp ++ movq $____LOAD_PHYSICAL_ADDR, %rbp + #endif + + /* Target address to relocate to for decompression */ +diff -urNp linux-3.1.1/arch/x86/boot/compressed/Makefile linux-3.1.1/arch/x86/boot/compressed/Makefile +--- linux-3.1.1/arch/x86/boot/compressed/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/compressed/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=smal + 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 -urNp linux-3.1.1/arch/x86/boot/compressed/misc.c linux-3.1.1/arch/x86/boot/compressed/misc.c +--- linux-3.1.1/arch/x86/boot/compressed/misc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/compressed/misc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 +@@ -363,7 +363,7 @@ asmlinkage void decompress_kernel(void * + 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 -urNp linux-3.1.1/arch/x86/boot/compressed/relocs.c linux-3.1.1/arch/x86/boot/compressed/relocs.c +--- linux-3.1.1/arch/x86/boot/compressed/relocs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/compressed/relocs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -13,8 +13,11 @@ + + static void die(char *fmt, ...); + ++#include "../../../../include/generated/autoconf.h" ++ + #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; + +@@ -270,9 +273,39 @@ 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)); +@@ -307,7 +340,7 @@ 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) { +@@ -332,7 +365,7 @@ 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) { +@@ -365,7 +398,9 @@ 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) { +@@ -385,9 +420,18 @@ static void read_relocs(FILE *fp) + die("Cannot read symbol table: %s\n", + strerror(errno)); + } ++ base = 0; ++ 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; ++ } + 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); + } + } +@@ -396,14 +440,14 @@ 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; + Elf32_Sym *sh_symtab; +- int j; ++ unsigned int j; + + if (sec->shdr.sh_type != SHT_SYMTAB) { + continue; +@@ -431,14 +475,14 @@ 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; + } +@@ -499,13 +543,13 @@ static void print_absolute_relocs(void) + + static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym)) + { +- 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) { +@@ -530,6 +574,22 @@ static void walk_relocs(void (*visit)(El + !is_rel_reloc(sym_name(sym_strtab, sym))) { + continue; + } ++ /* 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 ++ + switch (r_type) { + case R_386_NONE: + case R_386_PC32: +@@ -571,7 +631,7 @@ static int cmp_relocs(const void *va, co + + static void emit_relocs(int as_text) + { +- int i; ++ unsigned int i; + /* Count how many relocations I have and allocate space for them. */ + reloc_count = 0; + walk_relocs(count_reloc); +@@ -665,6 +725,7 @@ 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 -urNp linux-3.1.1/arch/x86/boot/cpucheck.c linux-3.1.1/arch/x86/boot/cpucheck.c +--- linux-3.1.1/arch/x86/boot/cpucheck.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/cpucheck.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 *r + 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 *r + 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 *r + 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 -urNp linux-3.1.1/arch/x86/boot/header.S linux-3.1.1/arch/x86/boot/header.S +--- linux-3.1.1/arch/x86/boot/header.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/header.S 2011-11-16 18:39:07.000000000 -0500 +@@ -224,7 +224,7 @@ setup_data: .quad 0 # 64-bit physical + # 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 -urNp linux-3.1.1/arch/x86/boot/Makefile linux-3.1.1/arch/x86/boot/Makefile +--- linux-3.1.1/arch/x86/boot/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -63,6 +63,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os + $(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 -urNp linux-3.1.1/arch/x86/boot/memory.c linux-3.1.1/arch/x86/boot/memory.c +--- linux-3.1.1/arch/x86/boot/memory.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/memory.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/boot/video.c linux-3.1.1/arch/x86/boot/video.c +--- linux-3.1.1/arch/x86/boot/video.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/video.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/boot/video-vesa.c linux-3.1.1/arch/x86/boot/video-vesa.c +--- linux-3.1.1/arch/x86/boot/video-vesa.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/boot/video-vesa.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/crypto/aes-x86_64-asm_64.S linux-3.1.1/arch/x86/crypto/aes-x86_64-asm_64.S +--- linux-3.1.1/arch/x86/crypto/aes-x86_64-asm_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/crypto/aes-x86_64-asm_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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; ret ++ + #define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \ + movq r1,r2; \ + movq r3,r4; \ +diff -urNp linux-3.1.1/arch/x86/crypto/salsa20-x86_64-asm_64.S linux-3.1.1/arch/x86/crypto/salsa20-x86_64-asm_64.S +--- linux-3.1.1/arch/x86/crypto/salsa20-x86_64-asm_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/crypto/salsa20-x86_64-asm_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + 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 -urNp linux-3.1.1/arch/x86/crypto/twofish-x86_64-asm_64.S linux-3.1.1/arch/x86/crypto/twofish-x86_64-asm_64.S +--- linux-3.1.1/arch/x86/crypto/twofish-x86_64-asm_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/crypto/twofish-x86_64-asm_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -21,6 +21,7 @@ + .text + + #include <asm/asm-offsets.h> ++#include <asm/alternative-asm.h> + + #define a_offset 0 + #define b_offset 4 +@@ -269,6 +270,7 @@ twofish_enc_blk: + + popq R1 + movq $1,%rax ++ pax_force_retaddr + ret + + twofish_dec_blk: +@@ -321,4 +323,5 @@ twofish_dec_blk: + + popq R1 + movq $1,%rax ++ pax_force_retaddr + ret +diff -urNp linux-3.1.1/arch/x86/ia32/ia32_aout.c linux-3.1.1/arch/x86/ia32/ia32_aout.c +--- linux-3.1.1/arch/x86/ia32/ia32_aout.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/ia32/ia32_aout.c 2011-11-16 18:40:08.000000000 -0500 +@@ -162,6 +162,8 @@ static int aout_core_dump(long signr, st + 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 -urNp linux-3.1.1/arch/x86/ia32/ia32entry.S linux-3.1.1/arch/x86/ia32/ia32entry.S +--- linux-3.1.1/arch/x86/ia32/ia32entry.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/ia32/ia32entry.S 2011-11-17 18:27:57.000000000 -0500 +@@ -13,7 +13,9 @@ + #include <asm/thread_info.h> + #include <asm/segment.h> + #include <asm/irqflags.h> ++#include <asm/pgtable.h> + #include <linux/linkage.h> ++#include <asm/alternative-asm.h> + + /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ + #include <linux/elf-em.h> +@@ -95,6 +97,29 @@ ENTRY(native_irq_enable_sysexit) + ENDPROC(native_irq_enable_sysexit) + #endif + ++ .macro pax_enter_kernel_user ++#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 ++ ++.macro pax_erase_kstack ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++ call pax_erase_kstack ++#endif ++.endm ++ + /* + * 32bit SYSENTER instruction entry. + * +@@ -121,7 +146,7 @@ ENTRY(ia32_sysenter_target) + CFI_REGISTER rsp,rbp + SWAPGS_UNSAFE_STACK + movq PER_CPU_VAR(kernel_stack), %rsp +- addq $(KERNEL_STACK_OFFSET),%rsp ++ pax_enter_kernel_user + /* + * No need to follow this irqs on/off section: the syscall + * disabled irqs, here we enable it straight after entry: +@@ -134,7 +159,8 @@ ENTRY(ia32_sysenter_target) + CFI_REL_OFFSET rsp,0 + pushfq_cfi + /*CFI_REL_OFFSET rflags,0*/ +- movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d ++ GET_THREAD_INFO(%r10) ++ movl TI_sysenter_return(%r10), %r10d + CFI_REGISTER rip,r10 + pushq_cfi $__USER32_CS + /*CFI_REL_OFFSET cs,0*/ +@@ -146,6 +172,12 @@ ENTRY(ia32_sysenter_target) + SAVE_ARGS 0,1,0 + /* 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,%r10 ++ add %r10,%rbp ++#endif ++ + 1: movl (%rbp),%ebp + .section __ex_table,"a" + .quad 1b,ia32_badarg +@@ -168,6 +200,8 @@ sysenter_dispatch: + testl $_TIF_ALLWORK_MASK,TI_flags(%r10) + jnz sysexit_audit + sysexit_from_sys_call: ++ pax_exit_kernel_user ++ pax_erase_kstack + andl $~TS_COMPAT,TI_status(%r10) + /* clear IF, that popfq doesn't enable interrupts early */ + andl $~0x200,EFLAGS-R11(%rsp) +@@ -194,6 +228,9 @@ 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 +@@ -246,6 +283,9 @@ 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 +@@ -277,19 +317,24 @@ 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 ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_enter_kernel_user ++#endif ++ + /* + * 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 ++ SAVE_ARGS 8*6,0,0 + movl %eax,%eax /* zero extension */ + movq %rax,ORIG_RAX-ARGOFFSET(%rsp) + movq %rcx,RIP-ARGOFFSET(%rsp) +@@ -305,6 +350,12 @@ 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,%r10 ++ add %r10,%r8 ++#endif ++ + 1: movl (%r8),%r9d + .section __ex_table,"a" + .quad 1b,ia32_badarg +@@ -327,6 +378,8 @@ cstar_dispatch: + testl $_TIF_ALLWORK_MASK,TI_flags(%r10) + jnz sysretl_audit + sysretl_from_sys_call: ++ pax_exit_kernel_user ++ pax_erase_kstack + andl $~TS_COMPAT,TI_status(%r10) + RESTORE_ARGS 0,-ARG_SKIP,0,0,0 + movl RIP-ARGOFFSET(%rsp),%ecx +@@ -364,6 +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 +@@ -409,6 +465,7 @@ ENTRY(ia32_syscall) + CFI_REL_OFFSET rip,RIP-RIP + PARAVIRT_ADJUST_EXCEPTION_FRAME + SWAPGS ++ 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: +@@ -441,6 +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 +@@ -455,6 +515,7 @@ ia32_badsys: + + quiet_ni_syscall: + movq $-ENOSYS,%rax ++ pax_force_retaddr + ret + CFI_ENDPROC + +diff -urNp linux-3.1.1/arch/x86/ia32/ia32_signal.c linux-3.1.1/arch/x86/ia32/ia32_signal.c +--- linux-3.1.1/arch/x86/ia32/ia32_signal.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/ia32/ia32_signal.c 2011-11-16 18:39:07.000000000 -0500 +@@ -169,7 +169,7 @@ asmlinkage long sys32_sigaltstack(const + } + 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))) +@@ -370,7 +370,7 @@ static int ia32_setup_sigcontext(struct + */ + 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; + +@@ -391,7 +391,7 @@ static void __user *get_sigframe(struct + + 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; + } +@@ -399,7 +399,7 @@ static void __user *get_sigframe(struct + 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; + } + +@@ -457,7 +457,7 @@ int ia32_setup_frame(int sig, struct k_s + * 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) +@@ -499,7 +499,7 @@ int ia32_setup_rt_frame(int sig, struct + 0xb8, + __NR_ia32_rt_sigreturn, + 0x80cd, +- 0, ++ 0 + }; + + frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); +@@ -529,16 +529,18 @@ int ia32_setup_rt_frame(int sig, struct + + 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 -urNp linux-3.1.1/arch/x86/ia32/sys_ia32.c linux-3.1.1/arch/x86/ia32/sys_ia32.c +--- linux-3.1.1/arch/x86/ia32/sys_ia32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/ia32/sys_ia32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsign + */ + 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)) || +@@ -308,8 +308,8 @@ asmlinkage long sys32_rt_sigprocmask(int + } + set_fs(KERNEL_DS); + ret = sys_rt_sigprocmask(how, +- set ? (sigset_t __user *)&s : NULL, +- oset ? (sigset_t __user *)&s : NULL, ++ set ? (sigset_t __force_user *)&s : NULL, ++ oset ? (sigset_t __force_user *)&s : NULL, + sigsetsize); + set_fs(old_fs); + if (ret) +@@ -332,7 +332,7 @@ asmlinkage long sys32_alarm(unsigned int + 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); +@@ -353,7 +353,7 @@ asmlinkage long sys32_sched_rr_get_inter + 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; +@@ -369,7 +369,7 @@ asmlinkage long sys32_rt_sigpending(comp + 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) { +@@ -394,7 +394,7 @@ asmlinkage long sys32_rt_sigqueueinfo(in + 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; + } +@@ -439,7 +439,7 @@ asmlinkage long sys32_sendfile(int out_f + 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 -urNp linux-3.1.1/arch/x86/include/asm/alternative-asm.h linux-3.1.1/arch/x86/include/asm/alternative-asm.h +--- linux-3.1.1/arch/x86/include/asm/alternative-asm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/alternative-asm.h 2011-11-16 18:39:07.000000000 -0500 +@@ -15,6 +15,20 @@ + .endm + #endif + ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN ++ .macro pax_force_retaddr rip=0 ++ btsq $63,\rip(%rsp) ++ .endm ++ .macro pax_force_fptr ptr ++ btsq $63,\ptr ++ .endm ++#else ++ .macro pax_force_retaddr rip=0 ++ .endm ++ .macro pax_force_fptr ptr ++ .endm ++#endif ++ + .macro altinstruction_entry orig alt feature orig_len alt_len + .long \orig - . + .long \alt - . +diff -urNp linux-3.1.1/arch/x86/include/asm/alternative.h linux-3.1.1/arch/x86/include/asm/alternative.h +--- linux-3.1.1/arch/x86/include/asm/alternative.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/alternative.h 2011-11-16 18:39:07.000000000 -0500 +@@ -89,7 +89,7 @@ static inline int alternatives_text_rese + ".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 -urNp linux-3.1.1/arch/x86/include/asm/apic.h linux-3.1.1/arch/x86/include/asm/apic.h +--- linux-3.1.1/arch/x86/include/asm/apic.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/apic.h 2011-11-16 18:39:07.000000000 -0500 +@@ -45,7 +45,7 @@ static inline void generic_apic_probe(vo + + #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 -urNp linux-3.1.1/arch/x86/include/asm/apm.h linux-3.1.1/arch/x86/include/asm/apm.h +--- linux-3.1.1/arch/x86/include/asm/apm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/apm.h 2011-11-16 18:39:07.000000000 -0500 +@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 + __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_as + __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 -urNp linux-3.1.1/arch/x86/include/asm/atomic64_32.h linux-3.1.1/arch/x86/include/asm/atomic64_32.h +--- linux-3.1.1/arch/x86/include/asm/atomic64_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/atomic64_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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) } + + #ifdef CONFIG_X86_CMPXCHG64 +@@ -38,6 +46,21 @@ static inline long long atomic64_cmpxchg + } + + /** ++ * 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 +@@ -77,6 +100,24 @@ static inline void atomic64_set(atomic64 + } + + /** ++ * 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; ++ asm volatile(ATOMIC64_ALTERNATIVE(set) ++ : "+b" (low), "+c" (high) ++ : "S" (v) ++ : "eax", "edx", "memory" ++ ); ++} ++ ++/** + * atomic64_read - read atomic64 variable + * @v: pointer to type atomic64_t + * +@@ -93,6 +134,22 @@ static inline long long atomic64_read(at + } + + /** ++ * 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; ++ asm volatile(ATOMIC64_ALTERNATIVE(read_unchecked) ++ : "=A" (r), "+c" (v) ++ : : "memory" ++ ); ++ return r; ++ } ++ ++/** + * atomic64_add_return - add and return + * @i: integer value to add + * @v: pointer to type atomic64_t +@@ -108,6 +165,22 @@ static inline long long atomic64_add_ret + 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) ++{ ++ asm volatile(ATOMIC64_ALTERNATIVE(add_return_unchecked) ++ : "+A" (i), "+c" (v) ++ : : "memory" ++ ); ++ return i; ++} ++ + /* + * Other variants with different arithmetic operators: + */ +@@ -131,6 +204,17 @@ static inline long long atomic64_inc_ret + return a; + } + ++static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) ++{ ++ long long a; ++ asm volatile(ATOMIC64_ALTERNATIVE(inc_return_unchecked) ++ : "=A" (a) ++ : "S" (v) ++ : "memory", "ecx" ++ ); ++ return a; ++} ++ + static inline long long atomic64_dec_return(atomic64_t *v) + { + long long a; +@@ -159,6 +243,22 @@ static inline long long atomic64_add(lon + } + + /** ++ * 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) ++{ ++ asm volatile(ATOMIC64_ALTERNATIVE_(add_unchecked, add_return_unchecked) ++ : "+A" (i), "+c" (v) ++ : : "memory" ++ ); ++ return i; ++} ++ ++/** + * atomic64_sub - subtract the atomic64 variable + * @i: integer value to subtract + * @v: pointer to type atomic64_t +diff -urNp linux-3.1.1/arch/x86/include/asm/atomic64_64.h linux-3.1.1/arch/x86/include/asm/atomic64_64.h +--- linux-3.1.1/arch/x86/include/asm/atomic64_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/atomic64_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + } + + /** ++ * 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 + */ + 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, + */ + 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( + { + 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( + */ + 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 + */ + 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( + { + 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( + { + 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( + { + 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; +@@ -171,7 +317,31 @@ static inline int atomic64_add_negative( + static inline long atomic64_add_return(long i, atomic64_t *v) + { + long __i = i; +- asm volatile(LOCK_PREFIX "xaddq %0, %1;" ++ asm volatile(LOCK_PREFIX "xaddq %0, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "movq %0, %1\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+r" (i), "+m" (v->counter) ++ : : "memory"); ++ return i + __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) ++{ ++ long __i = i; ++ asm volatile(LOCK_PREFIX "xaddq %0, %1" + : "+r" (i), "+m" (v->counter) + : : "memory"); + return i + __i; +@@ -183,6 +353,10 @@ static inline long atomic64_sub_return(l + } + + #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) +@@ -190,6 +364,11 @@ static inline long atomic64_cmpxchg(atom + 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); +@@ -206,17 +385,30 @@ static inline long atomic64_xchg(atomic6 + */ + 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 -urNp linux-3.1.1/arch/x86/include/asm/atomic.h linux-3.1.1/arch/x86/include/asm/atomic.h +--- linux-3.1.1/arch/x86/include/asm/atomic.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/atomic.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 * + } + + /** ++ * 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 * + */ + 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, ato + */ + 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(in + { + 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(in + */ + 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 * + */ + 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(at + { + 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(at + { + 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(in + { + 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; +@@ -180,6 +342,46 @@ static inline int atomic_add_return(int + #endif + /* Modern 486+ processor */ + __i = i; ++ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "movl %0, %1\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ ++ : "+r" (i), "+m" (v->counter) ++ : : "memory"); ++ return i + __i; ++ ++#ifdef CONFIG_M386 ++no_xadd: /* Legacy 386 processor */ ++ local_irq_save(flags); ++ __i = atomic_read(v); ++ atomic_set(v, i + __i); ++ local_irq_restore(flags); ++ return i + __i; ++#endif ++} ++ ++/** ++ * atomic_add_return_unchecked - add integer and return ++ * @v: pointer of type atomic_unchecked_t ++ * @i: integer value to add ++ * ++ * Atomically adds @i to @v and returns @i + @v ++ */ ++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) ++{ ++ int __i; ++#ifdef CONFIG_M386 ++ unsigned long flags; ++ if (unlikely(boot_cpu_data.x86 <= 3)) ++ goto no_xadd; ++#endif ++ /* Modern 486+ processor */ ++ __i = i; + asm volatile(LOCK_PREFIX "xaddl %0, %1" + : "+r" (i), "+m" (v->counter) + : : "memory"); +@@ -208,6 +410,10 @@ static inline int atomic_sub_return(int + } + + #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) +@@ -215,11 +421,21 @@ static inline int atomic_cmpxchg(atomic_ + 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 +@@ -231,12 +447,25 @@ static inline int atomic_xchg(atomic_t * + */ + 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; +@@ -244,6 +473,48 @@ static inline int __atomic_add_unless(at + 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 -urNp linux-3.1.1/arch/x86/include/asm/bitops.h linux-3.1.1/arch/x86/include/asm/bitops.h +--- linux-3.1.1/arch/x86/include/asm/bitops.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/bitops.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/boot.h linux-3.1.1/arch/x86/include/asm/boot.h +--- linux-3.1.1/arch/x86/include/asm/boot.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/boot.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/cacheflush.h linux-3.1.1/arch/x86/include/asm/cacheflush.h +--- linux-3.1.1/arch/x86/include/asm/cacheflush.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/cacheflush.h 2011-11-16 18:39:07.000000000 -0500 +@@ -26,7 +26,7 @@ static inline unsigned long get_page_mem + 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 -urNp linux-3.1.1/arch/x86/include/asm/cache.h linux-3.1.1/arch/x86/include/asm/cache.h +--- linux-3.1.1/arch/x86/include/asm/cache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/cache.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/checksum_32.h linux-3.1.1/arch/x86/include/asm/checksum_32.h +--- linux-3.1.1/arch/x86/include/asm/checksum_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/checksum_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene + 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_f + 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_us + { + 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 -urNp linux-3.1.1/arch/x86/include/asm/cpufeature.h linux-3.1.1/arch/x86/include/asm/cpufeature.h +--- linux-3.1.1/arch/x86/include/asm/cpufeature.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/cpufeature.h 2011-11-16 18:39:07.000000000 -0500 +@@ -358,7 +358,7 @@ static __always_inline __pure bool __sta + ".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 -urNp linux-3.1.1/arch/x86/include/asm/desc_defs.h linux-3.1.1/arch/x86/include/asm/desc_defs.h +--- linux-3.1.1/arch/x86/include/asm/desc_defs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/desc_defs.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/desc.h linux-3.1.1/arch/x86/include/asm/desc.h +--- linux-3.1.1/arch/x86/include/asm/desc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/desc.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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_ + + 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; +@@ -34,17 +36,12 @@ static inline void fill_ldt(struct desc_ + } + + extern struct desc_ptr idt_descr; +-extern gate_desc 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 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 +@@ -69,8 +66,14 @@ static inline void pack_gate(gate_desc * + 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 +@@ -115,12 +118,16 @@ static inline void paravirt_free_ldt(str + + 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 +@@ -134,7 +141,9 @@ native_write_gdt_entry(struct desc_struc + 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, +@@ -207,7 +216,9 @@ static inline void native_set_ldt(const + + 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) +@@ -244,8 +255,10 @@ static inline void native_load_tls(struc + 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) \ +@@ -307,7 +320,7 @@ static inline void set_desc_limit(struct + desc->limit = (limit >> 16) & 0xf; + } + +-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; +@@ -326,7 +339,7 @@ static inline void _set_gate(int gate, u + * 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); +@@ -356,19 +369,19 @@ static inline void alloc_intr_gate(unsig + /* + * 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); +@@ -377,19 +390,31 @@ static inline void set_trap_gate(unsigne + 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 -urNp linux-3.1.1/arch/x86/include/asm/e820.h linux-3.1.1/arch/x86/include/asm/e820.h +--- linux-3.1.1/arch/x86/include/asm/e820.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/e820.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/elf.h linux-3.1.1/arch/x86/include/asm/elf.h +--- linux-3.1.1/arch/x86/include/asm/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/elf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -237,7 +237,25 @@ 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_IA32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) ++#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 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, +@@ -290,9 +308,7 @@ 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 AT_SYSINFO 32 +@@ -303,7 +319,7 @@ do { \ + + #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)) +@@ -317,7 +333,4 @@ extern int arch_setup_additional_pages(s + 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 +- + #endif /* _ASM_X86_ELF_H */ +diff -urNp linux-3.1.1/arch/x86/include/asm/emergency-restart.h linux-3.1.1/arch/x86/include/asm/emergency-restart.h +--- linux-3.1.1/arch/x86/include/asm/emergency-restart.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/emergency-restart.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/futex.h linux-3.1.1/arch/x86/include/asm/futex.h +--- linux-3.1.1/arch/x86/include/asm/futex.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/futex.h 2011-11-16 18:39:07.000000000 -0500 +@@ -12,16 +12,18 @@ + #include <asm/system.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" \ +@@ -34,7 +36,7 @@ + _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) +@@ -61,10 +63,10 @@ static inline int futex_atomic_op_inuser + + 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: +@@ -123,13 +125,13 @@ static inline int futex_atomic_cmpxchg_i + 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 -urNp linux-3.1.1/arch/x86/include/asm/hw_irq.h linux-3.1.1/arch/x86/include/asm/hw_irq.h +--- linux-3.1.1/arch/x86/include/asm/hw_irq.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/hw_irq.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/i387.h linux-3.1.1/arch/x86/include/asm/i387.h +--- linux-3.1.1/arch/x86/include/asm/i387.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/i387.h 2011-11-16 18:39:07.000000000 -0500 +@@ -92,6 +92,11 @@ static inline int fxrstor_checking(struc + { + 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" +@@ -121,6 +126,11 @@ static inline int fxsave_user(struct i38 + { + 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. +@@ -213,13 +223,8 @@ static inline void fpu_fxsave(struct fpu + #endif /* CONFIG_X86_64 */ + + /* We need a safe address that is cheap to find and that is already +- in L1 during context switch. The best choices are unfortunately +- different for UP and SMP */ +-#ifdef CONFIG_SMP +-#define safe_address (__per_cpu_offset[0]) +-#else +-#define safe_address (kstat_cpu(0).cpustat.user) +-#endif ++ in L1 during context switch. */ ++#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0) + + /* + * These must be called with preempt disabled +@@ -312,7 +317,7 @@ static inline void kernel_fpu_begin(void + struct thread_info *me = current_thread_info(); + preempt_disable(); + if (me->status & TS_USEDFPU) +- __save_init_fpu(me->task); ++ __save_init_fpu(current); + else + clts(); + } +diff -urNp linux-3.1.1/arch/x86/include/asm/io.h linux-3.1.1/arch/x86/include/asm/io.h +--- linux-3.1.1/arch/x86/include/asm/io.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/io.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/irqflags.h linux-3.1.1/arch/x86/include/asm/irqflags.h +--- linux-3.1.1/arch/x86/include/asm/irqflags.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/irqflags.h 2011-11-16 18:39:07.000000000 -0500 +@@ -141,6 +141,11 @@ static inline notrace unsigned long arch + 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 -urNp linux-3.1.1/arch/x86/include/asm/kprobes.h linux-3.1.1/arch/x86/include/asm/kprobes.h +--- linux-3.1.1/arch/x86/include/asm/kprobes.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/kprobes.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/kvm_host.h linux-3.1.1/arch/x86/include/asm/kvm_host.h +--- linux-3.1.1/arch/x86/include/asm/kvm_host.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/kvm_host.h 2011-11-16 18:39:07.000000000 -0500 +@@ -456,7 +456,7 @@ struct kvm_arch { + unsigned int n_requested_mmu_pages; + unsigned int n_max_mmu_pages; + unsigned int indirect_shadow_pages; +- atomic_t invlpg_counter; ++ atomic_unchecked_t invlpg_counter; + struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; + /* + * Hash table of struct kvm_mmu_page. +@@ -636,7 +636,7 @@ struct kvm_x86_ops { + enum x86_intercept_stage stage); + + const struct trace_print_flags *exit_reasons_str; +-}; ++} __do_const; + + struct kvm_arch_async_pf { + u32 token; +diff -urNp linux-3.1.1/arch/x86/include/asm/local.h linux-3.1.1/arch/x86/include/asm/local.h +--- linux-3.1.1/arch/x86/include/asm/local.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/local.h 2011-11-16 18:39:07.000000000 -0500 +@@ -18,26 +18,58 @@ 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)); + } +@@ -55,7 +87,16 @@ static inline int local_sub_and_test(lon + { + 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; +@@ -73,7 +114,16 @@ static inline int local_dec_and_test(loc + { + 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; +@@ -91,7 +141,16 @@ static inline int local_inc_and_test(loc + { + 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; +@@ -110,7 +169,16 @@ static inline int local_add_negative(lon + { + 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; +@@ -133,7 +201,15 @@ static inline long local_add_return(long + #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 -urNp linux-3.1.1/arch/x86/include/asm/mman.h linux-3.1.1/arch/x86/include/asm/mman.h +--- linux-3.1.1/arch/x86/include/asm/mman.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/mman.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/mmu_context.h linux-3.1.1/arch/x86/include/asm/mmu_context.h +--- linux-3.1.1/arch/x86/include/asm/mmu_context.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/mmu_context.h 2011-11-16 18:39:07.000000000 -0500 +@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *m + + 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_s + 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, USER_PGD_PTRS); ++ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); ++ 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_s + */ + 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, USER_PGD_PTRS); ++ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); ++ 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_s + * 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 ++ } + } + + #define activate_mm(prev, next) \ +diff -urNp linux-3.1.1/arch/x86/include/asm/mmu.h linux-3.1.1/arch/x86/include/asm/mmu.h +--- linux-3.1.1/arch/x86/include/asm/mmu.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/mmu.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/module.h linux-3.1.1/arch/x86/include/asm/module.h +--- linux-3.1.1/arch/x86/include/asm/module.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/module.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 +60,18 @@ + #error unknown processor family + #endif + +-#ifdef CONFIG_X86_32 +-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY ++#ifdef CONFIG_PAX_KERNEXEC ++#define MODULE_PAX_KERNEXEC "KERNEXEC " ++#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 -urNp linux-3.1.1/arch/x86/include/asm/page_64_types.h linux-3.1.1/arch/x86/include/asm/page_64_types.h +--- linux-3.1.1/arch/x86/include/asm/page_64_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/page_64_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/paravirt.h linux-3.1.1/arch/x86/include/asm/paravirt.h +--- linux-3.1.1/arch/x86/include/asm/paravirt.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/paravirt.h 2011-11-16 18:39:07.000000000 -0500 +@@ -667,6 +667,18 @@ static inline void set_pgd(pgd_t *pgdp, + 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)); +@@ -748,6 +760,21 @@ static inline void __set_fixmap(unsigned + 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) +@@ -964,7 +991,7 @@ 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 \ +@@ -1041,6 +1068,21 @@ 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 -urNp linux-3.1.1/arch/x86/include/asm/paravirt_types.h linux-3.1.1/arch/x86/include/asm/paravirt_types.h +--- linux-3.1.1/arch/x86/include/asm/paravirt_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/paravirt_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/pgalloc.h linux-3.1.1/arch/x86/include/asm/pgalloc.h +--- linux-3.1.1/arch/x86/include/asm/pgalloc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgalloc.h 2011-11-16 18:39:07.000000000 -0500 +@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(s + 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)); + } + +diff -urNp linux-3.1.1/arch/x86/include/asm/pgtable-2level.h linux-3.1.1/arch/x86/include/asm/pgtable-2level.h +--- linux-3.1.1/arch/x86/include/asm/pgtable-2level.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable-2level.h 2011-11-16 18:39:07.000000000 -0500 +@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t + + 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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable_32.h linux-3.1.1/arch/x86/include/asm/pgtable_32.h +--- linux-3.1.1/arch/x86/include/asm/pgtable_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable_32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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, u + # 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, u + /* 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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable_32_types.h linux-3.1.1/arch/x86/include/asm/pgtable_32_types.h +--- linux-3.1.1/arch/x86/include/asm/pgtable_32_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable_32_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + # 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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable-3level.h linux-3.1.1/arch/x86/include/asm/pgtable-3level.h +--- linux-3.1.1/arch/x86/include/asm/pgtable-3level.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable-3level.h 2011-11-16 18:39:07.000000000 -0500 +@@ -38,12 +38,16 @@ static inline void native_set_pte_atomic + + 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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable_64.h linux-3.1.1/arch/x86/include/asm/pgtable_64.h +--- linux-3.1.1/arch/x86/include/asm/pgtable_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable_64.h 2011-11-16 18:39:07.000000000 -0500 +@@ -16,10 +16,13 @@ + + extern pud_t level3_kernel_pgt[512]; + extern pud_t level3_ident_pgt[512]; ++extern pud_t level3_vmalloc_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 +64,9 @@ static inline void native_set_pte_atomic + + 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) +@@ -107,6 +112,13 @@ static inline void native_pud_clear(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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable_64_types.h linux-3.1.1/arch/x86/include/asm/pgtable_64_types.h +--- linux-3.1.1/arch/x86/include/asm/pgtable_64_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable_64_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/pgtable.h linux-3.1.1/arch/x86/include/asm/pgtable.h +--- linux-3.1.1/arch/x86/include/asm/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable.h 2011-11-16 18:39:07.000000000 -0500 +@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm + + #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 + + #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 + 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 + #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 *p + + 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(st + * 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, int count); ++#endif ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count); ++#else ++static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count) {} ++#endif + + #include <asm-generic/pgtable.h> + #endif /* __ASSEMBLY__ */ +diff -urNp linux-3.1.1/arch/x86/include/asm/pgtable_types.h linux-3.1.1/arch/x86/include/asm/pgtable_types.h +--- linux-3.1.1/arch/x86/include/asm/pgtable_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/pgtable_types.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 p + { + 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(pu + 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(pm + 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 -urNp linux-3.1.1/arch/x86/include/asm/processor.h linux-3.1.1/arch/x86/include/asm/processor.h +--- linux-3.1.1/arch/x86/include/asm/processor.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/processor.h 2011-11-16 18:39:07.000000000 -0500 +@@ -266,7 +266,7 @@ 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 +@@ -858,11 +858,18 @@ static inline void spin_lock_prefetch(co + */ + #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, \ +@@ -876,7 +883,7 @@ static inline void spin_lock_prefetch(co + */ + #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, \ +@@ -887,11 +894,7 @@ static inline void spin_lock_prefetch(co + 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. +@@ -906,7 +909,7 @@ extern unsigned long thread_saved_pc(str + #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; \ + }) + +@@ -916,13 +919,13 @@ extern unsigned long thread_saved_pc(str + /* + * 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_IA32) ? \ + IA32_PAGE_OFFSET : TASK_SIZE_MAX) +@@ -933,11 +936,11 @@ extern unsigned long thread_saved_pc(str + #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 \ + } + + /* +@@ -959,6 +962,10 @@ extern void start_thread(struct pt_regs + */ + #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 */ +diff -urNp linux-3.1.1/arch/x86/include/asm/ptrace.h linux-3.1.1/arch/x86/include/asm/ptrace.h +--- linux-3.1.1/arch/x86/include/asm/ptrace.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/ptrace.h 2011-11-16 18:39:07.000000000 -0500 +@@ -156,28 +156,29 @@ static inline unsigned long regs_return_ + } + + /* +- * 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 + } + +@@ -193,15 +194,16 @@ static inline int v8086_mode(struct pt_r + #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 -urNp linux-3.1.1/arch/x86/include/asm/reboot.h linux-3.1.1/arch/x86/include/asm/reboot.h +--- linux-3.1.1/arch/x86/include/asm/reboot.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/reboot.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/rwsem.h linux-3.1.1/arch/x86/include/asm/rwsem.h +--- linux-3.1.1/arch/x86/include/asm/rwsem.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/rwsem.h 2011-11-16 18:39:07.000000000 -0500 +@@ -64,6 +64,14 @@ static inline void __down_read(struct rw + { + 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(st + "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(s + 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_s + 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_ + 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(str + { + 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(str + */ + 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)); + } +@@ -206,7 +262,15 @@ static inline long rwsem_atomic_update(l + { + long tmp = delta; + +- asm volatile(LOCK_PREFIX "xadd %0,%1" ++ asm volatile(LOCK_PREFIX "xadd %0,%1\n" ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ "jno 0f\n" ++ "mov %0,%1\n" ++ "int $4\n0:\n" ++ _ASM_EXTABLE(0b, 0b) ++#endif ++ + : "+r" (tmp), "+m" (sem->count) + : : "memory"); + +diff -urNp linux-3.1.1/arch/x86/include/asm/segment.h linux-3.1.1/arch/x86/include/asm/segment.h +--- linux-3.1.1/arch/x86/include/asm/segment.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/segment.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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) +diff -urNp linux-3.1.1/arch/x86/include/asm/smp.h linux-3.1.1/arch/x86/include/asm/smp.h +--- linux-3.1.1/arch/x86/include/asm/smp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/smp.h 2011-11-16 18:39:07.000000000 -0500 +@@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_ + /* 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 __cpuinitd + 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 -urNp linux-3.1.1/arch/x86/include/asm/spinlock.h linux-3.1.1/arch/x86/include/asm/spinlock.h +--- linux-3.1.1/arch/x86/include/asm/spinlock.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/spinlock.h 2011-11-16 18:39:07.000000000 -0500 +@@ -248,6 +248,14 @@ static inline int arch_write_can_lock(ar + 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" +@@ -257,6 +265,14 @@ static inline void arch_read_lock(arch_r + 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" +@@ -286,13 +302,29 @@ static inline int arch_write_trylock(arc + + 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 -urNp linux-3.1.1/arch/x86/include/asm/stackprotector.h linux-3.1.1/arch/x86/include/asm/stackprotector.h +--- linux-3.1.1/arch/x86/include/asm/stackprotector.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/stackprotector.h 2011-11-16 18:39:07.000000000 -0500 +@@ -48,7 +48,7 @@ + * 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. +@@ -113,7 +113,7 @@ static inline void setup_stack_canary_se + + 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 -urNp linux-3.1.1/arch/x86/include/asm/stacktrace.h linux-3.1.1/arch/x86/include/asm/stacktrace.h +--- linux-3.1.1/arch/x86/include/asm/stacktrace.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/stacktrace.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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); +- +-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); ++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 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 -urNp linux-3.1.1/arch/x86/include/asm/sys_ia32.h linux-3.1.1/arch/x86/include/asm/sys_ia32.h +--- linux-3.1.1/arch/x86/include/asm/sys_ia32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/sys_ia32.h 2011-11-16 18:39:07.000000000 -0500 +@@ -40,7 +40,7 @@ asmlinkage long sys32_rt_sigprocmask(int + compat_sigset_t __user *, unsigned int); + 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 -urNp linux-3.1.1/arch/x86/include/asm/system.h linux-3.1.1/arch/x86/include/asm/system.h +--- linux-3.1.1/arch/x86/include/asm/system.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/system.h 2011-11-16 18:39:07.000000000 -0500 +@@ -129,7 +129,7 @@ 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" \ +@@ -140,7 +140,7 @@ 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) +@@ -200,7 +200,7 @@ static inline unsigned long get_limit(un + { + unsigned long __limit; + asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); +- return __limit + 1; ++ return __limit; + } + + static inline void native_clts(void) +@@ -397,12 +397,12 @@ void enable_hlt(void); + + 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); + +-void stop_this_cpu(void *dummy); ++void stop_this_cpu(void *dummy) __noreturn; + + /* + * Force strict CPU ordering. +diff -urNp linux-3.1.1/arch/x86/include/asm/thread_info.h linux-3.1.1/arch/x86/include/asm/thread_info.h +--- linux-3.1.1/arch/x86/include/asm/thread_info.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/thread_info.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 */ +@@ -34,18 +34,12 @@ 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; + int uaccess_err; + }; + +-#define INIT_THREAD_INFO(tsk) \ ++#define INIT_THREAD_INFO \ + { \ +- .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ +@@ -56,7 +50,7 @@ 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__ */ +@@ -170,6 +164,23 @@ struct thread_info { + ret; \ + }) + ++#ifdef __ASSEMBLY__ ++/* how to get the thread information struct from ASM */ ++#define GET_THREAD_INFO(reg) \ ++ mov PER_CPU_VAR(current_tinfo), reg ++ ++/* use this one if reg already contains %esp */ ++#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) +@@ -180,35 +191,13 @@ struct thread_info { + */ + #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__ */ +- +-/* how to get the thread information struct from ASM */ +-#define GET_THREAD_INFO(reg) \ +- movl $-THREAD_SIZE, reg; \ +- andl %esp, reg +- +-/* use this one if reg already contains %esp */ +-#define GET_THREAD_INFO_WITH_ESP(reg) \ +- andl $-THREAD_SIZE, reg +- + #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. +@@ -216,21 +205,8 @@ static inline struct thread_info *curren + #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 +- ++/* how to get the current stack pointer from C */ ++register unsigned long current_stack_pointer asm("rsp") __used; + #endif + + #endif /* !X86_32 */ +@@ -266,5 +242,16 @@ 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 -urNp linux-3.1.1/arch/x86/include/asm/uaccess_32.h linux-3.1.1/arch/x86/include/asm/uaccess_32.h +--- linux-3.1.1/arch/x86/include/asm/uaccess_32.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/uaccess_32.h 2011-11-16 18:40:08.000000000 -0500 +@@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_u + static __always_inline unsigned long __must_check + __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) + { ++ pax_track_stack(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n)) { + unsigned long ret; + +@@ -61,6 +66,8 @@ __copy_to_user_inatomic(void __user *to, + return ret; + } + } ++ if (!__builtin_constant_p(n)) ++ check_object_size(from, n, true); + return __copy_to_user_ll(to, from, n); + } + +@@ -82,12 +89,16 @@ static __always_inline unsigned long __m + __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 +148,12 @@ static __always_inline unsigned long + __copy_from_user(void *to, const void __user *from, unsigned long n) + { + might_fault(); ++ ++ pax_track_stack(); ++ ++ if ((long)n < 0) ++ return n; ++ + if (__builtin_constant_p(n)) { + unsigned long ret; + +@@ -152,6 +169,8 @@ __copy_from_user(void *to, const void __ + return ret; + } + } ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); + return __copy_from_user_ll(to, from, n); + } + +@@ -159,6 +178,10 @@ static __always_inline unsigned long __c + 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 +204,19 @@ 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; + +-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); ++ return __copy_from_user_ll_nocache_nozero(to, from, 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 +226,61 @@ 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(from); ++ ++ if (unlikely(sz != -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) + { + int sz = __compiletime_object_size(to); + +- if (likely(sz == -1 || sz >= n)) +- n = _copy_from_user(to, from, n); +- else ++ if (unlikely(sz != -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; + } + +diff -urNp linux-3.1.1/arch/x86/include/asm/uaccess_64.h linux-3.1.1/arch/x86/include/asm/uaccess_64.h +--- linux-3.1.1/arch/x86/include/asm/uaccess_64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/uaccess_64.h 2011-11-16 18:40:08.000000000 -0500 +@@ -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 +@@ -36,26 +39,26 @@ copy_user_generic(void *to, const void * + return ret; + } + +-__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); ++static __always_inline __must_check unsigned long ++__copy_to_user(void __user *to, const void *from, unsigned len); ++static __always_inline __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); + + static inline unsigned long __must_check copy_from_user(void *to, + const void __user *from, +- unsigned long n) ++ unsigned 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 ((int)n > 0) { ++ if (!__builtin_constant_p(n)) ++ check_object_size(to, n, false); ++ memset(to, 0, n); ++ } + return n; + } + +@@ -64,110 +67,198 @@ int copy_to_user(void __user *dst, const + { + 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 size) + { +- int ret = 0; ++ int sz = __compiletime_object_size(dst); ++ unsigned ret = 0; + + might_fault(); +- if (!__builtin_constant_p(size)) +- return copy_user_generic(dst, (__force void *)src, size); ++ ++ pax_track_stack(); ++ ++ if ((int)size < 0) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_READ, src, size)) ++ return size; ++#endif ++ ++ if (unlikely(sz != -1 && sz < size)) { ++#ifdef CONFIG_DEBUG_VM ++ WARN(1, "Buffer overflow detected!\n"); ++#endif ++ 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 size) + { +- int ret = 0; ++ int sz = __compiletime_object_size(src); ++ unsigned ret = 0; + + might_fault(); +- if (!__builtin_constant_p(size)) +- return copy_user_generic((__force void *)dst, src, size); ++ ++ pax_track_stack(); ++ ++ if ((int)size < 0) ++ return size; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if (!__access_ok(VERIFY_WRITE, dst, size)) ++ return size; ++#endif ++ ++ if (unlikely(sz != -1 && sz < size)) { ++#ifdef CONFIG_DEBUG_VM ++ WARN(1, "Buffer overflow detected!\n"); ++#endif ++ 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 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 ((int)size < 0) ++ 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 +267,7 @@ int __copy_in_user(void __user *dst, con + } + 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 +277,7 @@ int __copy_in_user(void __user *dst, con + + 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 +286,7 @@ int __copy_in_user(void __user *dst, con + } + 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, +@@ -203,8 +294,16 @@ int __copy_in_user(void __user *dst, con + 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); + } + } + +@@ -221,33 +320,72 @@ __must_check unsigned long __clear_user( + static __must_check __always_inline int + __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size) + { +- return copy_user_generic(dst, (__force const void *)src, size); ++ pax_track_stack(); ++ ++ if ((int)size < 0) ++ 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 ++static __must_check __always_inline unsigned long + __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) + { +- return copy_user_generic((__force void *)dst, src, size); ++ if ((int)size < 0) ++ 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, ++extern unsigned long __copy_user_nocache(void *dst, const void __user *src, + unsigned size, int zerorest); + +-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 size) + { + might_sleep(); ++ ++ if ((int)size < 0) ++ 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, ++static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, + unsigned size) + { ++ if ((int)size < 0) ++ 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 len, unsigned zerorest); + + #endif /* _ASM_X86_UACCESS_64_H */ +diff -urNp linux-3.1.1/arch/x86/include/asm/uaccess.h linux-3.1.1/arch/x86/include/asm/uaccess.h +--- linux-3.1.1/arch/x86/include/asm/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/uaccess.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 bu + * 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 bu + ".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 bu + * 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 bu + * 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 bu + #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 -urNp linux-3.1.1/arch/x86/include/asm/vdso.h linux-3.1.1/arch/x86/include/asm/vdso.h +--- linux-3.1.1/arch/x86/include/asm/vdso.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/vdso.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/include/asm/x86_init.h linux-3.1.1/arch/x86/include/asm/x86_init.h +--- linux-3.1.1/arch/x86/include/asm/x86_init.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/x86_init.h 2011-11-16 18:39:07.000000000 -0500 +@@ -28,7 +28,7 @@ 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 +@@ -42,7 +42,7 @@ 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 +@@ -55,7 +55,7 @@ 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 +@@ -65,7 +65,7 @@ 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 +@@ -76,7 +76,7 @@ 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 +@@ -86,7 +86,7 @@ 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 +@@ -101,7 +101,7 @@ 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 +@@ -109,7 +109,7 @@ struct x86_init_timers { + */ + struct x86_init_iommu { + int (*iommu_init)(void); +-}; ++} __no_const; + + /** + * struct x86_init_pci - platform specific pci init functions +@@ -123,7 +123,7 @@ 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 +@@ -139,7 +139,7 @@ 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 +@@ -147,7 +147,7 @@ struct x86_init_ops { + */ + struct x86_cpuinit_ops { + void (*setup_percpu_clockev)(void); +-}; ++} __no_const; + + /** + * struct x86_platform_ops - platform specific runtime functions +@@ -166,7 +166,7 @@ struct x86_platform_ops { + bool (*is_untracked_pat_range)(u64 start, u64 end); + void (*nmi_init)(void); + int (*i8042_detect)(void); +-}; ++} __no_const; + + struct pci_dev; + +@@ -174,7 +174,7 @@ struct x86_msi_ops { + int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); + void (*teardown_msi_irq)(unsigned int irq); + void (*teardown_msi_irqs)(struct pci_dev *dev); +-}; ++} __no_const; + + extern struct x86_init_ops x86_init; + extern struct x86_cpuinit_ops x86_cpuinit; +diff -urNp linux-3.1.1/arch/x86/include/asm/xsave.h linux-3.1.1/arch/x86/include/asm/xsave.h +--- linux-3.1.1/arch/x86/include/asm/xsave.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/include/asm/xsave.h 2011-11-16 18:39:07.000000000 -0500 +@@ -65,6 +65,11 @@ static inline int xsave_user(struct xsav + { + 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 xsav + 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 -urNp linux-3.1.1/arch/x86/Kconfig linux-3.1.1/arch/x86/Kconfig +--- linux-3.1.1/arch/x86/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/Kconfig 2011-11-16 18:40:08.000000000 -0500 +@@ -236,7 +236,7 @@ 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 +@@ -1019,7 +1019,7 @@ 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 +@@ -1056,7 +1056,7 @@ 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. +@@ -1110,7 +1110,7 @@ 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 +@@ -1484,6 +1484,7 @@ 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 +@@ -1541,6 +1542,7 @@ 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. + +@@ -1604,6 +1606,7 @@ 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 +@@ -1635,9 +1638,10 @@ 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 -urNp linux-3.1.1/arch/x86/Kconfig.cpu linux-3.1.1/arch/x86/Kconfig.cpu +--- linux-3.1.1/arch/x86/Kconfig.cpu 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/Kconfig.cpu 2011-11-16 18:39:07.000000000 -0500 +@@ -341,7 +341,7 @@ 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 +@@ -365,7 +365,7 @@ 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 +@@ -411,7 +411,7 @@ 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 -urNp linux-3.1.1/arch/x86/Kconfig.debug linux-3.1.1/arch/x86/Kconfig.debug +--- linux-3.1.1/arch/x86/Kconfig.debug 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/Kconfig.debug 2011-11-16 18:39:07.000000000 -0500 +@@ -81,7 +81,7 @@ 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 +@@ -99,7 +99,7 @@ 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 +diff -urNp linux-3.1.1/arch/x86/kernel/acpi/realmode/Makefile linux-3.1.1/arch/x86/kernel/acpi/realmode/Makefile +--- linux-3.1.1/arch/x86/kernel/acpi/realmode/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/acpi/realmode/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -41,6 +41,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os + $(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 -urNp linux-3.1.1/arch/x86/kernel/acpi/realmode/wakeup.S linux-3.1.1/arch/x86/kernel/acpi/realmode/wakeup.S +--- linux-3.1.1/arch/x86/kernel/acpi/realmode/wakeup.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/acpi/realmode/wakeup.S 2011-11-16 18:40:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/acpi/sleep.c linux-3.1.1/arch/x86/kernel/acpi/sleep.c +--- linux-3.1.1/arch/x86/kernel/acpi/sleep.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/acpi/sleep.c 2011-11-16 18:39:07.000000000 -0500 +@@ -94,8 +94,12 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/acpi/wakeup_32.S linux-3.1.1/arch/x86/kernel/acpi/wakeup_32.S +--- linux-3.1.1/arch/x86/kernel/acpi/wakeup_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/acpi/wakeup_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/alternative.c linux-3.1.1/arch/x86/kernel/alternative.c +--- linux-3.1.1/arch/x86/kernel/alternative.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/alternative.c 2011-11-16 18:39:07.000000000 -0500 +@@ -276,6 +276,13 @@ void __init_or_module apply_alternatives + */ + 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 + 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(cons + 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(str + + 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(voi + 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(voi + * 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(v + */ + 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 -urNp linux-3.1.1/arch/x86/kernel/apic/apic.c linux-3.1.1/arch/x86/kernel/apic/apic.c +--- linux-3.1.1/arch/x86/kernel/apic/apic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/apic/apic.c 2011-11-16 18:40:08.000000000 -0500 +@@ -174,7 +174,7 @@ int first_system_vector = 0xfe; + /* + * Debug level, exported for io_apic.c + */ +-unsigned int apic_verbosity; ++int apic_verbosity; + + int pic_mode; + +@@ -1835,7 +1835,7 @@ void smp_error_interrupt(struct pt_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); +@@ -2209,6 +2209,8 @@ static int __cpuinit apic_cluster_num(vo + u16 *bios_cpu_apicid; + DECLARE_BITMAP(clustermap, NUM_APIC_CLUSTERS); + ++ pax_track_stack(); ++ + bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid); + bitmap_zero(clustermap, NUM_APIC_CLUSTERS); + +diff -urNp linux-3.1.1/arch/x86/kernel/apic/io_apic.c linux-3.1.1/arch/x86/kernel/apic/io_apic.c +--- linux-3.1.1/arch/x86/kernel/apic/io_apic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/apic/io_apic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1028,7 +1028,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, + } + 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. +@@ -1036,7 +1036,7 @@ 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); + } +@@ -2405,7 +2405,7 @@ static void ack_apic_edge(struct irq_dat + ack_APIC_irq(); + } + +-atomic_t irq_mis_count; ++atomic_unchecked_t irq_mis_count; + + /* + * IO-APIC versions below 0x20 don't support EOI register. +@@ -2513,7 +2513,7 @@ static void ack_apic_level(struct irq_da + * 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 -urNp linux-3.1.1/arch/x86/kernel/apm_32.c linux-3.1.1/arch/x86/kernel/apm_32.c +--- linux-3.1.1/arch/x86/kernel/apm_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/apm_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -413,7 +413,7 @@ 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 */ +@@ -591,7 +591,10 @@ 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; +@@ -600,7 +603,11 @@ 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; +@@ -667,7 +674,10 @@ static long __apm_bios_call_simple(void + 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; +@@ -675,7 +685,11 @@ static long __apm_bios_call_simple(void + &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; + } +@@ -2349,12 +2363,15 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/asm-offsets_64.c linux-3.1.1/arch/x86/kernel/asm-offsets_64.c +--- linux-3.1.1/arch/x86/kernel/asm-offsets_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/asm-offsets_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -69,6 +69,7 @@ int main(void) + BLANK(); + #undef ENTRY + ++ DEFINE(TSS_size, sizeof(struct tss_struct)); + OFFSET(TSS_ist, tss_struct, x86_tss.ist); + BLANK(); + +diff -urNp linux-3.1.1/arch/x86/kernel/asm-offsets.c linux-3.1.1/arch/x86/kernel/asm-offsets.c +--- linux-3.1.1/arch/x86/kernel/asm-offsets.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/asm-offsets.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/cpu/amd.c linux-3.1.1/arch/x86/kernel/cpu/amd.c +--- linux-3.1.1/arch/x86/kernel/cpu/amd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/amd.c 2011-11-16 18:39:07.000000000 -0500 +@@ -647,7 +647,7 @@ static unsigned int __cpuinit amd_size_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 -urNp linux-3.1.1/arch/x86/kernel/cpu/common.c linux-3.1.1/arch/x86/kernel/cpu/common.c +--- linux-3.1.1/arch/x86/kernel/cpu/common.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/common.c 2011-11-16 18:39:07.000000000 -0500 +@@ -83,60 +83,6 @@ static const struct cpu_dev __cpuinitcon + + 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); +@@ -371,7 +317,7 @@ 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 */ +@@ -840,6 +786,10 @@ static void __cpuinit identify_cpu(struc + /* Filter out anything that depends on CPUID levels we don't have */ + filter_cpuid_features(c, true); + ++#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || (defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32)) ++ 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; +@@ -1019,6 +969,9 @@ static __init int setup_disablecpuid(cha + } + __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 }; + +@@ -1034,7 +987,7 @@ DEFINE_PER_CPU(struct task_struct *, cur + 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) = +@@ -1099,7 +1052,7 @@ struct pt_regs * __cpuinit idle_regs(str + { + memset(regs, 0, sizeof(struct pt_regs)); + regs->fs = __KERNEL_PERCPU; +- regs->gs = __KERNEL_STACK_CANARY; ++ savesegment(gs, regs->gs); + + return regs; + } +@@ -1154,7 +1107,7 @@ 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 +@@ -1180,7 +1133,7 @@ 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(); +@@ -1189,7 +1142,6 @@ void __cpuinit cpu_init(void) + wrmsrl(MSR_KERNEL_GS_BASE, 0); + barrier(); + +- x86_configure_nx(); + if (cpu != 0) + enable_x2apic(); + +@@ -1243,7 +1195,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/cpu/intel.c linux-3.1.1/arch/x86/kernel/cpu/intel.c +--- linux-3.1.1/arch/x86/kernel/cpu/intel.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/intel.c 2011-11-16 18:39:07.000000000 -0500 +@@ -172,7 +172,7 @@ static void __cpuinit trap_init_f00f_bug + * 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 -urNp linux-3.1.1/arch/x86/kernel/cpu/Makefile linux-3.1.1/arch/x86/kernel/cpu/Makefile +--- linux-3.1.1/arch/x86/kernel/cpu/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce.c linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce.c +--- linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce.c 2011-11-16 18:39:07.000000000 -0500 +@@ -42,6 +42,7 @@ + #include <asm/processor.h> + #include <asm/mce.h> + #include <asm/msr.h> ++#include <asm/local.h> + + #include "mce-internal.h" + +@@ -205,7 +206,7 @@ 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"); + } +@@ -233,10 +234,10 @@ 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) +@@ -260,7 +261,7 @@ static void mce_panic(char *msg, struct + /* + * 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(); + +@@ -268,7 +269,7 @@ static void mce_panic(char *msg, struct + 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 */ +@@ -610,7 +611,7 @@ 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; +@@ -1429,7 +1430,7 @@ void __cpuinit mcheck_cpu_init(struct cp + */ + + 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) +@@ -1437,7 +1438,7 @@ static int mce_chrdev_open(struct inode + 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; +@@ -1445,7 +1446,7 @@ static int mce_chrdev_open(struct inode + + 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); + +@@ -1456,7 +1457,7 @@ static int mce_chrdev_release(struct ino + { + 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); +@@ -2147,7 +2148,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce-inject.c linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce-inject.c +--- linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-11-16 18:39:07.000000000 -0500 +@@ -215,7 +215,9 @@ static int inject_init(void) + if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL)) + return -ENOMEM; + printk(KERN_INFO "Machine check injector initialized\n"); +- mce_chrdev_ops.write = mce_write; ++ pax_open_kernel(); ++ *(void **)&mce_chrdev_ops.write = mce_write; ++ pax_close_kernel(); + register_die_notifier(&mce_raise_nb); + return 0; + } +diff -urNp linux-3.1.1/arch/x86/kernel/cpu/mtrr/main.c linux-3.1.1/arch/x86/kernel/cpu/mtrr/main.c +--- linux-3.1.1/arch/x86/kernel/cpu/mtrr/main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/mtrr/main.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/cpu/mtrr/mtrr.h linux-3.1.1/arch/x86/kernel/cpu/mtrr/mtrr.h +--- linux-3.1.1/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/cpu/perf_event.c linux-3.1.1/arch/x86/kernel/cpu/perf_event.c +--- linux-3.1.1/arch/x86/kernel/cpu/perf_event.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/cpu/perf_event.c 2011-11-16 18:40:08.000000000 -0500 +@@ -795,6 +795,8 @@ static int x86_schedule_events(struct cp + int i, j, w, wmax, num = 0; + struct hw_perf_event *hwc; + ++ pax_track_stack(); ++ + bitmap_zero(used_mask, X86_PMC_IDX_MAX); + + for (i = 0; i < n; i++) { +@@ -1919,7 +1921,7 @@ perf_callchain_user(struct perf_callchai + break; + + perf_callchain_store(entry, frame.return_address); +- fp = frame.next_frame; ++ fp = (const void __force_user *)frame.next_frame; + } + } + +diff -urNp linux-3.1.1/arch/x86/kernel/crash.c linux-3.1.1/arch/x86/kernel/crash.c +--- linux-3.1.1/arch/x86/kernel/crash.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/crash.c 2011-11-16 18:39:07.000000000 -0500 +@@ -42,7 +42,7 @@ static void kdump_nmi_callback(int cpu, + regs = args->regs; + + #ifdef CONFIG_X86_32 +- if (!user_mode_vm(regs)) { ++ if (!user_mode(regs)) { + crash_fixup_ss_esp(&fixed_regs, regs); + regs = &fixed_regs; + } +diff -urNp linux-3.1.1/arch/x86/kernel/doublefault_32.c linux-3.1.1/arch/x86/kernel/doublefault_32.c +--- linux-3.1.1/arch/x86/kernel/doublefault_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/doublefault_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 __cach + /* 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 -urNp linux-3.1.1/arch/x86/kernel/dumpstack_32.c linux-3.1.1/arch/x86/kernel/dumpstack_32.c +--- linux-3.1.1/arch/x86/kernel/dumpstack_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/dumpstack_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task + 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(); +@@ -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(" Bad EIP value."); + break; + } +- if (ip == (u8 *)regs->ip) ++ if (ip == (u8 *)regs->ip + cs_base) + printk("<%02x> ", c); + else + printk("%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 -urNp linux-3.1.1/arch/x86/kernel/dumpstack_64.c linux-3.1.1/arch/x86/kernel/dumpstack_64.c +--- linux-3.1.1/arch/x86/kernel/dumpstack_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/dumpstack_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -119,9 +119,9 @@ void dump_trace(struct task_struct *task + 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 + * 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 + 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>"); + /* +@@ -172,7 +172,7 @@ void dump_trace(struct task_struct *task + 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 +191,8 @@ void dump_trace(struct task_struct *task + /* + * 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); + put_cpu(); + } + EXPORT_SYMBOL(dump_trace); +@@ -305,3 +306,50 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/dumpstack.c linux-3.1.1/arch/x86/kernel/dumpstack.c +--- linux-3.1.1/arch/x86/kernel/dumpstack.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/dumpstack.c 2011-11-16 18:40:08.000000000 -0500 +@@ -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> +@@ -35,9 +38,8 @@ void printk_address(unsigned long addres + 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 = tinfo->task; + unsigned long ret_addr; + int index = task->curr_ret_stack; + +@@ -58,7 +60,7 @@ print_ftrace_graph_addr(unsigned long ad + 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 + +@@ -69,10 +71,8 @@ print_ftrace_graph_addr(unsigned long ad + * 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; +@@ -83,14 +83,14 @@ static inline int valid_stack_ptr(struct + } + + 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; +@@ -102,7 +102,7 @@ print_context_stack(struct thread_info * + } 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++; + } +@@ -111,7 +111,7 @@ print_context_stack(struct thread_info * + 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) +@@ -119,7 +119,7 @@ print_context_stack_bp(struct thread_inf + 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)) +@@ -128,7 +128,7 @@ print_context_stack_bp(struct thread_inf + 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; +@@ -186,7 +186,7 @@ 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); +@@ -222,6 +222,8 @@ 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)) +@@ -243,7 +245,10 @@ void __kprobes oops_end(unsigned long fl + 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) +@@ -269,7 +274,7 @@ int __kprobes __die(const char *str, str + + show_registers(regs); + #ifdef CONFIG_X86_32 +- if (user_mode_vm(regs)) { ++ if (user_mode(regs)) { + sp = regs->sp; + ss = regs->ss & 0xffff; + } else { +@@ -297,7 +302,7 @@ void die(const char *str, struct pt_regs + 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 -urNp linux-3.1.1/arch/x86/kernel/early_printk.c linux-3.1.1/arch/x86/kernel/early_printk.c +--- linux-3.1.1/arch/x86/kernel/early_printk.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/early_printk.c 2011-11-16 18:40:08.000000000 -0500 +@@ -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> +@@ -179,6 +180,8 @@ asmlinkage void early_printk(const char + int n; + va_list ap; + ++ pax_track_stack(); ++ + va_start(ap, fmt); + n = vscnprintf(buf, sizeof(buf), fmt, ap); + early_console->write(early_console, buf, n); +diff -urNp linux-3.1.1/arch/x86/kernel/entry_32.S linux-3.1.1/arch/x86/kernel/entry_32.S +--- linux-3.1.1/arch/x86/kernel/entry_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/entry_32.S 2011-11-16 18:40:08.000000000 -0500 +@@ -186,13 +186,146 @@ + /*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 +@@ -215,7 +348,7 @@ + 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 +@@ -223,6 +356,15 @@ + 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 +@@ -308,7 +450,7 @@ 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 +@@ -333,7 +475,15 @@ check_userspace: + movb PT_CS(%esp), %al + andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax + 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 +@@ -345,8 +495,8 @@ 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) +@@ -361,7 +511,7 @@ need_resched: + jz restore_all + call preempt_schedule_irq + jmp need_resched +-END(resume_kernel) ++ENDPROC(resume_kernel) + #endif + CFI_ENDPROC + /* +@@ -395,23 +545,34 @@ 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 +@@ -434,12 +595,24 @@ 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 + +@@ -456,6 +629,9 @@ 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 +@@ -482,11 +658,17 @@ 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) +@@ -519,6 +701,15 @@ 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: +@@ -578,14 +769,34 @@ 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 +@@ -614,34 +825,28 @@ 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 +- 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 + xorl %edx, %edx + call do_notify_resume + jmp resume_userspace_sig +-END(work_pending) ++ENDPROC(work_pending) + + # perform syscall exit tracing + ALIGN +@@ -649,11 +854,14 @@ 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 +@@ -666,20 +874,24 @@ 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 +@@ -753,6 +965,36 @@ 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 +@@ -762,8 +1004,15 @@ 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 +@@ -816,7 +1065,7 @@ vector=vector+1 + .endr + 2: jmp common_interrupt + .endr +-END(irq_entries_start) ++ENDPROC(irq_entries_start) + + .previous + END(interrupt) +@@ -864,7 +1113,7 @@ 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 +@@ -885,7 +1134,7 @@ 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 +@@ -893,7 +1142,7 @@ 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) +@@ -902,12 +1151,12 @@ 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) +@@ -916,7 +1165,7 @@ ENTRY(overflow) + pushl_cfi $do_overflow + jmp error_code + CFI_ENDPROC +-END(overflow) ++ENDPROC(overflow) + + ENTRY(bounds) + RING0_INT_FRAME +@@ -924,7 +1173,7 @@ ENTRY(bounds) + pushl_cfi $do_bounds + jmp error_code + CFI_ENDPROC +-END(bounds) ++ENDPROC(bounds) + + ENTRY(invalid_op) + RING0_INT_FRAME +@@ -932,7 +1181,7 @@ 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 +@@ -940,35 +1189,35 @@ 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 +@@ -976,7 +1225,7 @@ 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) +@@ -985,7 +1234,7 @@ ENTRY(machine_check) + pushl_cfi machine_check_vector + jmp error_code + CFI_ENDPROC +-END(machine_check) ++ENDPROC(machine_check) + #endif + + ENTRY(spurious_interrupt_bug) +@@ -994,7 +1243,7 @@ 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 + */ +@@ -1109,7 +1358,7 @@ BUILD_INTERRUPT3(xen_hvm_callback_vector + + ENTRY(mcount) + ret +-END(mcount) ++ENDPROC(mcount) + + ENTRY(ftrace_caller) + cmpl $0, function_trace_stop +@@ -1138,7 +1387,7 @@ ftrace_graph_call: + .globl ftrace_stub + ftrace_stub: + ret +-END(ftrace_caller) ++ENDPROC(ftrace_caller) + + #else /* ! CONFIG_DYNAMIC_FTRACE */ + +@@ -1174,7 +1423,7 @@ trace: + popl %ecx + popl %eax + jmp ftrace_stub +-END(mcount) ++ENDPROC(mcount) + #endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* CONFIG_FUNCTION_TRACER */ + +@@ -1195,7 +1444,7 @@ ENTRY(ftrace_graph_caller) + popl %ecx + popl %eax + ret +-END(ftrace_graph_caller) ++ENDPROC(ftrace_graph_caller) + + .globl return_to_handler + return_to_handler: +@@ -1209,7 +1458,6 @@ return_to_handler: + jmp *%ecx + #endif + +-.section .rodata,"a" + #include "syscall_table_32.S" + + syscall_table_size=(.-sys_call_table) +@@ -1255,15 +1503,18 @@ 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 +@@ -1305,7 +1556,7 @@ 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 +@@ -1342,6 +1593,9 @@ 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 + +@@ -1378,12 +1632,15 @@ 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 +@@ -1395,14 +1652,14 @@ 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) +@@ -1410,7 +1667,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/entry_64.S linux-3.1.1/arch/x86/kernel/entry_64.S +--- linux-3.1.1/arch/x86/kernel/entry_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/entry_64.S 2011-11-17 18:28:56.000000000 -0500 +@@ -55,6 +55,8 @@ + #include <asm/paravirt.h> + #include <asm/ftrace.h> + #include <asm/percpu.h> ++#include <asm/pgtable.h> ++#include <asm/alternative-asm.h> + + /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */ + #include <linux/elf-em.h> +@@ -68,8 +70,9 @@ + #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 +@@ -92,8 +95,9 @@ GLOBAL(ftrace_graph_call) + #endif + + GLOBAL(ftrace_stub) ++ pax_force_retaddr + retq +-END(ftrace_caller) ++ENDPROC(ftrace_caller) + + #else /* ! CONFIG_DYNAMIC_FTRACE */ + ENTRY(mcount) +@@ -112,6 +116,7 @@ ENTRY(mcount) + #endif + + GLOBAL(ftrace_stub) ++ pax_force_retaddr + retq + + trace: +@@ -121,12 +126,13 @@ 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 */ + +@@ -146,8 +152,9 @@ 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 +@@ -163,6 +170,7 @@ GLOBAL(return_to_handler) + movq 8(%rsp), %rdx + movq (%rsp), %rax + addq $24, %rsp ++ pax_force_fptr %rdi + jmp *%rdi + #endif + +@@ -178,6 +186,269 @@ 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 ++#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 1f ++ mov %cs,%edi ++ cmp $__KERNEL_CS,%edi ++ jz 3f ++ ljmpq __KERNEL_CS,3f ++1: ljmpq __KERNEXEC_KERNEL_CS,2f ++2: SET_RDI_INTO_CR0 ++3: ++ ++#ifdef CONFIG_PARAVIRT ++ PV_RESTORE_REGS(CLBR_RDI) ++#endif ++ ++ popq %rdi ++ pax_force_retaddr ++ retq ++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 ++ jnz 2f ++ GET_CR0_INTO_RDI ++ btr $16,%rdi ++ ljmpq __KERNEL_CS,1f ++1: SET_RDI_INTO_CR0 ++2: ++ ++#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 ++#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 ++ push %rax ++ call pax_randomize_kstack ++ pop %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 ++/* ++ * r10: thread_info ++ * rcx, rdx: can be clobbered ++ */ ++ENTRY(pax_erase_kstack) ++ pushq %rdi ++ pushq %rax ++ pushq %r10 ++ ++ GET_THREAD_INFO(%r10) ++ mov TI_lowest_stack(%r10), %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(%r10), %rdi ++ sub $256, %rdi ++ mov %rdi, TI_lowest_stack(%r10) ++ ++ popq %r10 ++ popq %rax ++ popq %rdi ++ pax_force_retaddr ++ ret ++ENDPROC(pax_erase_kstack) ++#endif + + .macro TRACE_IRQS_IRETQ offset=ARGOFFSET + #ifdef CONFIG_TRACE_IRQFLAGS +@@ -319,7 +590,7 @@ ENDPROC(native_usergs_sysret64) + movq %rsp, %rsi + + leaq -RBP(%rsp),%rdi /* arg1 for handler */ +- testl $3, CS(%rdi) ++ testb $3, CS(%rdi) + je 1f + SWAPGS + /* +@@ -350,9 +621,10 @@ 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" +@@ -381,9 +653,10 @@ ENTRY(save_paranoid) + js 1f /* negative -> in kernel */ + SWAPGS + xorl %ebx,%ebx +-1: ret ++1: pax_force_retaddr ++ ret + CFI_ENDPROC +-END(save_paranoid) ++ENDPROC(save_paranoid) + .popsection + + /* +@@ -405,7 +678,7 @@ ENTRY(ret_from_fork) + + RESTORE_REST + +- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread? ++ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread? + je int_ret_from_sys_call + + testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET +@@ -415,7 +688,7 @@ 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. +@@ -451,7 +724,7 @@ 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 +@@ -464,12 +737,13 @@ ENTRY(system_call_after_swapgs) + + movq %rsp,PER_CPU_VAR(old_rsp) + movq PER_CPU_VAR(kernel_stack),%rsp ++ 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 ++ SAVE_ARGS 8*6,0 + movq %rax,ORIG_RAX-ARGOFFSET(%rsp) + movq %rcx,RIP-ARGOFFSET(%rsp) + CFI_REL_OFFSET rip,RIP-ARGOFFSET +@@ -498,6 +772,8 @@ sysret_check: + andl %edi,%edx + jnz sysret_careful + CFI_REMEMBER_STATE ++ pax_exit_kernel_user ++ pax_erase_kstack + /* + * sysretq will re-enable interrupts: + */ +@@ -556,6 +832,9 @@ auditsys: + 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 */ + jmp system_call_fastpath + +@@ -586,6 +865,9 @@ 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 +@@ -607,7 +889,7 @@ tracesys: + GLOBAL(int_ret_from_sys_call) + DISABLE_INTERRUPTS(CLBR_NONE) + TRACE_IRQS_OFF +- testl $3,CS-ARGOFFSET(%rsp) ++ testb $3,CS-ARGOFFSET(%rsp) + je retint_restore_args + movl $_TIF_ALLWORK_MASK,%edi + /* edi: mask to check */ +@@ -664,7 +946,7 @@ 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. +@@ -680,7 +962,7 @@ ENTRY(\label) + call \func + jmp ptregscall_common + CFI_ENDPROC +-END(\label) ++ENDPROC(\label) + .endm + + PTREGSCALL stub_clone, sys_clone, %r8 +@@ -698,9 +980,10 @@ 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 +@@ -715,7 +998,7 @@ 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. +@@ -733,7 +1016,7 @@ ENTRY(stub_rt_sigreturn) + RESTORE_REST + jmp int_ret_from_sys_call + CFI_ENDPROC +-END(stub_rt_sigreturn) ++ENDPROC(stub_rt_sigreturn) + + /* + * Build the entry stubs and pointer table with some assembler magic. +@@ -768,7 +1051,7 @@ vector=vector+1 + 2: jmp common_interrupt + .endr + CFI_ENDPROC +-END(irq_entries_start) ++ENDPROC(irq_entries_start) + + .previous + END(interrupt) +@@ -789,6 +1072,16 @@ END(interrupt) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP + SAVE_ARGS_IRQ + PARTIAL_FRAME 0 ++#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 + +@@ -820,7 +1113,7 @@ 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 */ +@@ -842,12 +1135,16 @@ retint_swapgs: /* return to user-space + * The iretq could re-enable interrupts: + */ + DISABLE_INTERRUPTS(CLBR_ANY) ++ pax_exit_kernel_user ++ pax_erase_kstack + 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: + */ +@@ -936,7 +1233,7 @@ ENTRY(retint_kernel) + #endif + + CFI_ENDPROC +-END(common_interrupt) ++ENDPROC(common_interrupt) + /* + * End of kprobes section + */ +@@ -952,7 +1249,7 @@ ENTRY(\sym) + interrupt \do_sym + jmp ret_from_intr + CFI_ENDPROC +-END(\sym) ++ENDPROC(\sym) + .endm + + #ifdef CONFIG_SMP +@@ -1017,12 +1314,22 @@ 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 +@@ -1034,15 +1341,25 @@ 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 +@@ -1052,14 +1369,30 @@ 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 +@@ -1070,13 +1403,23 @@ 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 */ +@@ -1089,13 +1432,23 @@ 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 +@@ -1125,9 +1478,10 @@ 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 +@@ -1149,13 +1503,14 @@ 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. +@@ -1184,9 +1539,10 @@ ENTRY(kernel_execve) + 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) +@@ -1204,9 +1560,10 @@ 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 +@@ -1244,7 +1601,7 @@ ENTRY(xen_do_hypervisor_callback) # do + 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. +@@ -1303,7 +1660,7 @@ 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 +@@ -1352,16 +1709,31 @@ 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 ++ 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 + jmp irq_return + paranoid_userspace: + GET_THREAD_INFO(%rcx) +@@ -1390,7 +1762,7 @@ 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. +@@ -1417,12 +1789,13 @@ 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 + ret + + /* +@@ -1449,7 +1822,7 @@ 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) */ +@@ -1469,7 +1842,7 @@ ENTRY(error_exit) + jnz retint_careful + jmp retint_swapgs + CFI_ENDPROC +-END(error_exit) ++ENDPROC(error_exit) + + + /* runs on exception stack */ +@@ -1481,6 +1854,16 @@ ENTRY(nmi) + CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 + 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 +@@ -1491,12 +1874,28 @@ ENTRY(nmi) + DISABLE_INTERRUPTS(CLBR_NONE) + testl %ebx,%ebx /* swapgs needed? */ + jnz nmi_restore +- testl $3,CS(%rsp) ++ testb $3,CS(%rsp) + jnz nmi_userspace ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_exit_kernel ++ SWAPGS_UNSAFE_STACK ++ RESTORE_ALL 8 ++ pax_force_retaddr ++ jmp irq_return ++#endif + nmi_swapgs: ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ pax_exit_kernel_user ++#else ++ pax_exit_kernel ++#endif + SWAPGS_UNSAFE_STACK ++ RESTORE_ALL 8 ++ jmp irq_return + nmi_restore: ++ pax_exit_kernel + RESTORE_ALL 8 ++ pax_force_retaddr + jmp irq_return + nmi_userspace: + GET_THREAD_INFO(%rcx) +@@ -1525,14 +1924,14 @@ nmi_schedule: + jmp paranoid_exit + CFI_ENDPROC + #endif +-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 -urNp linux-3.1.1/arch/x86/kernel/ftrace.c linux-3.1.1/arch/x86/kernel/ftrace.c +--- linux-3.1.1/arch/x86/kernel/ftrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/ftrace.c 2011-11-16 18:39:07.000000000 -0500 +@@ -126,7 +126,7 @@ static void *mod_code_ip; /* holds the + 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, + + 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, uns + { + 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_fun + 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 + { + unsigned char code[MCOUNT_INSN_SIZE]; + ++ ip = ktla_ktva(ip); ++ + if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE)) + return -EFAULT; + +diff -urNp linux-3.1.1/arch/x86/kernel/head32.c linux-3.1.1/arch/x86/kernel/head32.c +--- linux-3.1.1/arch/x86/kernel/head32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/head32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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) + { +@@ -33,7 +34,7 @@ void __init i386_start_kernel(void) + { + memblock_init(); + +- memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS"); ++ memblock_x86_reserve_range(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop), "TEXT DATA BSS"); + + #ifdef CONFIG_BLK_DEV_INITRD + /* Reserve INITRD */ +diff -urNp linux-3.1.1/arch/x86/kernel/head_32.S linux-3.1.1/arch/x86/kernel/head_32.S +--- linux-3.1.1/arch/x86/kernel/head_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/head_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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_P + 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 -urNp linux-3.1.1/arch/x86/kernel/head_64.S linux-3.1.1/arch/x86/kernel/head_64.S +--- linux-3.1.1/arch/x86/kernel/head_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/head_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -19,6 +19,7 @@ + #include <asm/cache.h> + #include <asm/processor-flags.h> + #include <asm/percpu.h> ++#include <asm/cpufeature.h> + + #ifdef CONFIG_PARAVIRT + #include <asm/asm-offsets.h> +@@ -38,6 +39,10 @@ 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_VMEMMAP_START = pgd_index(VMEMMAP_START) ++L3_VMEMMAP_START = pud_index(VMEMMAP_START) + + .text + __HEAD +@@ -85,35 +90,22 @@ 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_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, level2_fixmap_pgt + (506*8)(%rip) ++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) ++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+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 + (506*8)(%rip) ++ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) + + /* + * Fixup the kernel text+data virtual addresses. Note that +@@ -160,8 +152,8 @@ 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 +175,14 @@ 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 ++ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) ++ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%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 */ +@@ -269,7 +266,7 @@ 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 +311,23 @@ 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" +-#endif /* CONFIG_EARLY_PRINTK */ + .previous ++#endif /* CONFIG_EARLY_PRINTK */ + ++ .section .rodata,"a",@progbits + #define NEXT_PAGE(name) \ + .balign PAGE_SIZE; \ + ENTRY(name) +@@ -338,7 +340,6 @@ 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 +350,36 @@ 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_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_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 +387,23 @@ 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) + /* +@@ -389,33 +416,55 @@ 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 + + __PAGE_ALIGNED_BSS + .align PAGE_SIZE +diff -urNp linux-3.1.1/arch/x86/kernel/i386_ksyms_32.c linux-3.1.1/arch/x86/kernel/i386_ksyms_32.c +--- linux-3.1.1/arch/x86/kernel/i386_ksyms_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/i386_ksyms_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/i8259.c linux-3.1.1/arch/x86/kernel/i8259.c +--- linux-3.1.1/arch/x86/kernel/i8259.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/i8259.c 2011-11-16 18:39:07.000000000 -0500 +@@ -210,7 +210,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/init_task.c linux-3.1.1/arch/x86/kernel/init_task.c +--- linux-3.1.1/arch/x86/kernel/init_task.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/init_task.c 2011-11-16 18:39:07.000000000 -0500 +@@ -20,8 +20,7 @@ static struct sighand_struct init_sighan + * 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 -urNp linux-3.1.1/arch/x86/kernel/ioport.c linux-3.1.1/arch/x86/kernel/ioport.c +--- linux-3.1.1/arch/x86/kernel/ioport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/ioport.c 2011-11-16 18:40:08.000000000 -0500 +@@ -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 + + 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 + * 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 + 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 -urNp linux-3.1.1/arch/x86/kernel/irq_32.c linux-3.1.1/arch/x86/kernel/irq_32.c +--- linux-3.1.1/arch/x86/kernel/irq_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/irq_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -36,7 +36,7 @@ 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) +@@ -54,8 +54,8 @@ static inline void print_stack_overflow( + * 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); +@@ -75,10 +75,9 @@ static void call_on_stack(void *func, vo + 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); + + /* +@@ -87,21 +86,16 @@ execute_on_irq_stack(int overflow, struc + * 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 softirq bits in preempt_count so that the +- * softirq checks work in the hardirq context. +- */ +- irqctx->tinfo.preempt_count = +- (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) | +- (curctx->tinfo.preempt_count & SOFTIRQ_MASK); ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ __set_fs(MAKE_MM_SEG(0)); ++#endif + + if (unlikely(overflow)) + call_on_stack(print_stack_overflow, isp); +@@ -113,6 +107,11 @@ execute_on_irq_stack(int overflow, struc + : "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 +120,11 @@ execute_on_irq_stack(int overflow, struc + */ + 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 +133,6 @@ 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 +142,22 @@ 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(): + */ +diff -urNp linux-3.1.1/arch/x86/kernel/irq.c linux-3.1.1/arch/x86/kernel/irq.c +--- linux-3.1.1/arch/x86/kernel/irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -17,7 +17,7 @@ + #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; +@@ -116,9 +116,9 @@ int arch_show_interrupts(struct seq_file + 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; + } +@@ -158,10 +158,10 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/kgdb.c linux-3.1.1/arch/x86/kernel/kgdb.c +--- linux-3.1.1/arch/x86/kernel/kgdb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/kgdb.c 2011-11-16 18:39:07.000000000 -0500 +@@ -124,11 +124,11 @@ char *dbg_get_reg(int regno, void *mem, + #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: +@@ -473,12 +473,12 @@ int kgdb_arch_handle_exception(int e_vec + 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()); + } + +@@ -534,7 +534,7 @@ static int __kgdb_notify(struct die_args + return NOTIFY_DONE; + + 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 -urNp linux-3.1.1/arch/x86/kernel/kprobes.c linux-3.1.1/arch/x86/kernel/kprobes.c +--- linux-3.1.1/arch/x86/kernel/kprobes.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/kprobes.c 2011-11-16 18:39:07.000000000 -0500 +@@ -117,8 +117,11 @@ static void __kprobes __synthesize_relat + } __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'.*/ +@@ -155,7 +158,7 @@ static int __kprobes can_boost(kprobe_op + 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: +@@ -316,7 +319,9 @@ static int __kprobes __copy_instruction( + } + } + insn_get_length(&insn); ++ pax_open_kernel(); + memcpy(dest, insn.kaddr, insn.length); ++ pax_close_kernel(); + + #ifdef CONFIG_X86_64 + if (insn_rip_relative(&insn)) { +@@ -340,7 +345,9 @@ static int __kprobes __copy_instruction( + (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; +@@ -354,12 +361,12 @@ static void __kprobes arch_copy_kprobe(s + */ + __copy_instruction(p->ainsn.insn, p->addr, 0); + +- if (can_boost(p->addr)) ++ if (can_boost(ktla_ktva(p->addr))) + p->ainsn.boostable = 0; + else + p->ainsn.boostable = -1; + +- p->opcode = *p->addr; ++ p->opcode = *(ktla_ktva(p->addr)); + } + + int __kprobes arch_prepare_kprobe(struct kprobe *p) +@@ -476,7 +483,7 @@ static void __kprobes setup_singlestep(s + * 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; + } +@@ -495,7 +502,7 @@ static void __kprobes setup_singlestep(s + 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); + } + + /* +@@ -574,7 +581,7 @@ static int __kprobes kprobe_handler(stru + 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 +@@ -682,6 +689,9 @@ static void __used __kprobes kretprobe_t + " movq %rax, 152(%rsp)\n" + RESTORE_REGS_STRING + " popfq\n" ++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN ++ " btsq $63,(%rsp)\n" ++#endif + #else + " pushf\n" + SAVE_REGS_STRING +@@ -819,7 +829,7 @@ static void __kprobes resume_execution(s + 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; + +@@ -1001,7 +1011,7 @@ int __kprobes kprobe_exceptions_notify(s + 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) { +@@ -1383,7 +1393,7 @@ int __kprobes arch_prepare_optimized_kpr + * 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; + +@@ -1404,11 +1414,11 @@ int __kprobes arch_prepare_optimized_kpr + 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 + +@@ -1430,7 +1440,7 @@ static void __kprobes setup_optimize_kpr + ((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 -urNp linux-3.1.1/arch/x86/kernel/kvm.c linux-3.1.1/arch/x86/kernel/kvm.c +--- linux-3.1.1/arch/x86/kernel/kvm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/kvm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -437,6 +437,7 @@ static void __init paravirt_ops_setup(vo + pv_mmu_ops.set_pud = kvm_set_pud; + #if PAGETABLE_LEVELS == 4 + pv_mmu_ops.set_pgd = kvm_set_pgd; ++ pv_mmu_ops.set_pgd_batched = kvm_set_pgd; + #endif + #endif + pv_mmu_ops.flush_tlb_user = kvm_flush_tlb; +diff -urNp linux-3.1.1/arch/x86/kernel/ldt.c linux-3.1.1/arch/x86/kernel/ldt.c +--- linux-3.1.1/arch/x86/kernel/ldt.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/ldt.c 2011-11-16 18:39:07.000000000 -0500 +@@ -67,13 +67,13 @@ static int alloc_ldt(mm_context_t *pc, i + 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) { +@@ -95,7 +95,7 @@ static inline int copy_ldt(mm_context_t + 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; + } + +@@ -116,6 +116,24 @@ int init_new_context(struct task_struct + 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; + } + +@@ -230,6 +248,13 @@ static int write_ldt(void __user *ptr, u + } + } + ++#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 -urNp linux-3.1.1/arch/x86/kernel/machine_kexec_32.c linux-3.1.1/arch/x86/kernel/machine_kexec_32.c +--- linux-3.1.1/arch/x86/kernel/machine_kexec_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/machine_kexec_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -27,7 +27,7 @@ + #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; + +@@ -39,7 +39,7 @@ static void set_idt(void *newidt, __u16 + } + + +-static void set_gdt(void *newgdt, __u16 limit) ++static void set_gdt(struct desc_struct *newgdt, __u16 limit) + { + struct desc_ptr curgdt; + +@@ -217,7 +217,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/microcode_intel.c linux-3.1.1/arch/x86/kernel/microcode_intel.c +--- linux-3.1.1/arch/x86/kernel/microcode_intel.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/microcode_intel.c 2011-11-16 18:39:07.000000000 -0500 +@@ -440,13 +440,13 @@ static enum ucode_state request_microcod + + 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 -urNp linux-3.1.1/arch/x86/kernel/module.c linux-3.1.1/arch/x86/kernel/module.c +--- linux-3.1.1/arch/x86/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/module.c 2011-11-16 18:39:07.000000000 -0500 +@@ -36,15 +36,60 @@ + #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) + 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, +@@ -55,14 +100,16 @@ 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 +@@ -71,11 +118,15 @@ 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", +@@ -120,21 +171,30 @@ int apply_relocate_add(Elf64_Shdr *sechd + 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 -urNp linux-3.1.1/arch/x86/kernel/paravirt.c linux-3.1.1/arch/x86/kernel/paravirt.c +--- linux-3.1.1/arch/x86/kernel/paravirt.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/paravirt.c 2011-11-17 18:29:42.000000000 -0500 +@@ -53,6 +53,9 @@ 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) + { +@@ -133,6 +136,9 @@ static void *get_call_destination(u8 typ + .pv_lock_ops = pv_lock_ops, + #endif + }; ++ ++ pax_track_stack(); ++ + return *((void **)&tmpl + type); + } + +@@ -145,15 +151,19 @@ unsigned paravirt_patch_default(u8 type, + 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) || +@@ -178,7 +188,7 @@ unsigned paravirt_patch_insns(void *insn + 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; + } +@@ -302,7 +312,7 @@ 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, +@@ -313,16 +323,16 @@ 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), +@@ -334,7 +344,7 @@ 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, +@@ -395,21 +405,26 @@ 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, +@@ -459,6 +474,7 @@ 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 */ + +@@ -478,6 +494,12 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/paravirt-spinlocks.c linux-3.1.1/arch/x86/kernel/paravirt-spinlocks.c +--- linux-3.1.1/arch/x86/kernel/paravirt-spinlocks.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/paravirt-spinlocks.c 2011-11-16 18:39:07.000000000 -0500 +@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t + 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 -urNp linux-3.1.1/arch/x86/kernel/pci-iommu_table.c linux-3.1.1/arch/x86/kernel/pci-iommu_table.c +--- linux-3.1.1/arch/x86/kernel/pci-iommu_table.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/pci-iommu_table.c 2011-11-16 18:40:08.000000000 -0500 +@@ -2,7 +2,7 @@ + #include <asm/iommu_table.h> + #include <linux/string.h> + #include <linux/kallsyms.h> +- ++#include <linux/sched.h> + + #define DEBUG 1 + +@@ -51,6 +51,8 @@ void __init check_iommu_entries(struct i + { + struct iommu_table_entry *p, *q, *x; + ++ pax_track_stack(); ++ + /* Simple cyclic dependency checker. */ + for (p = start; p < finish; p++) { + q = find_dependents_of(start, finish, p); +diff -urNp linux-3.1.1/arch/x86/kernel/process_32.c linux-3.1.1/arch/x86/kernel/process_32.c +--- linux-3.1.1/arch/x86/kernel/process_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/process_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -66,6 +66,7 @@ asmlinkage void ret_from_fork(void) __as + unsigned long thread_saved_pc(struct task_struct *tsk) + { + return ((unsigned long *)tsk->thread.sp)[3]; ++//XXX return tsk->thread.eip; + } + + #ifndef CONFIG_SMP +@@ -128,15 +129,14 @@ void __show_regs(struct pt_regs *regs, i + 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(); + +@@ -198,13 +198,14 @@ int copy_thread(unsigned long clone_flag + 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; + +@@ -294,7 +295,7 @@ __switch_to(struct task_struct *prev_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; + bool preload_fpu; + + /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ +@@ -329,6 +330,10 @@ __switch_to(struct task_struct *prev_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. + */ +@@ -364,6 +369,9 @@ __switch_to(struct task_struct *prev_p, + */ + arch_end_context_switch(next_p); + ++ percpu_write(current_task, next_p); ++ percpu_write(current_tinfo, &next_p->tinfo); ++ + if (preload_fpu) + __math_state_restore(); + +@@ -373,8 +381,6 @@ __switch_to(struct task_struct *prev_p, + if (prev->gs | next->gs) + lazy_load_gs(next->gs); + +- percpu_write(current_task, next_p); +- + return prev_p; + } + +@@ -404,4 +410,3 @@ unsigned long get_wchan(struct task_stru + } while (count++ < 16); + return 0; + } +- +diff -urNp linux-3.1.1/arch/x86/kernel/process_64.c linux-3.1.1/arch/x86/kernel/process_64.c +--- linux-3.1.1/arch/x86/kernel/process_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/process_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -88,7 +88,7 @@ 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(); + } +@@ -262,8 +262,7 @@ int copy_thread(unsigned long clone_flag + 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; +@@ -275,6 +274,7 @@ int copy_thread(unsigned long clone_flag + 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); + +@@ -377,7 +377,7 @@ __switch_to(struct task_struct *prev_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; + bool preload_fpu; + +@@ -473,10 +473,9 @@ __switch_to(struct task_struct *prev_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 +@@ -538,12 +537,11 @@ unsigned long get_wchan(struct task_stru + 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 -urNp linux-3.1.1/arch/x86/kernel/process.c linux-3.1.1/arch/x86/kernel/process.c +--- linux-3.1.1/arch/x86/kernel/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/process.c 2011-11-16 18:39:07.000000000 -0500 +@@ -48,16 +48,33 @@ void free_thread_xstate(struct task_stru + + void free_thread_info(struct thread_info *ti) + { +- free_thread_xstate(ti->task); + free_pages((unsigned long)ti, get_order(THREAD_SIZE)); + } + ++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); + } + + /* +@@ -70,7 +87,7 @@ 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); +@@ -106,7 +123,7 @@ 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); +@@ -120,6 +137,9 @@ 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)); + /* +@@ -282,10 +302,10 @@ int kernel_thread(int (*fn)(void *), voi + 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 +@@ -403,7 +423,7 @@ void default_idle(void) + EXPORT_SYMBOL(default_idle); + #endif + +-void stop_this_cpu(void *dummy) ++__noreturn void stop_this_cpu(void *dummy) + { + local_irq_disable(); + /* +@@ -645,16 +665,37 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/ptrace.c linux-3.1.1/arch/x86/kernel/ptrace.c +--- linux-3.1.1/arch/x86/kernel/ptrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/ptrace.c 2011-11-16 18:39:07.000000000 -0500 +@@ -822,7 +822,7 @@ long arch_ptrace(struct task_struct *chi + 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. */ +@@ -907,14 +907,14 @@ long arch_ptrace(struct task_struct *chi + 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 + +@@ -1331,7 +1331,7 @@ static void fill_sigtrap_info(struct tas + 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, +diff -urNp linux-3.1.1/arch/x86/kernel/pvclock.c linux-3.1.1/arch/x86/kernel/pvclock.c +--- linux-3.1.1/arch/x86/kernel/pvclock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/pvclock.c 2011-11-16 18:39:07.000000000 -0500 +@@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvc + 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 + * 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 -urNp linux-3.1.1/arch/x86/kernel/reboot.c linux-3.1.1/arch/x86/kernel/reboot.c +--- linux-3.1.1/arch/x86/kernel/reboot.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/reboot.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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; + +@@ -315,13 +315,17 @@ 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 +@@ -347,14 +351,14 @@ void machine_real_restart(unsigned int t + 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] = +@@ -365,7 +369,33 @@ void machine_real_restart(unsigned int t + 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); +@@ -523,7 +553,7 @@ void __attribute__((weak)) mach_reboot_f + * 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; +@@ -647,13 +677,13 @@ 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"); + +@@ -662,7 +692,7 @@ static void native_machine_restart(char + __machine_emergency_restart(0); + } + +-static void native_machine_halt(void) ++static __noreturn void native_machine_halt(void) + { + /* stop other cpus and apics */ + machine_shutdown(); +@@ -673,7 +703,7 @@ 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) +@@ -682,6 +712,7 @@ static void native_machine_power_off(voi + } + /* a fallback in case there is no PM info available */ + tboot_shutdown(TB_SHUTDOWN_HALT); ++ unreachable(); + } + + struct machine_ops machine_ops = { +diff -urNp linux-3.1.1/arch/x86/kernel/setup.c linux-3.1.1/arch/x86/kernel/setup.c +--- linux-3.1.1/arch/x86/kernel/setup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/setup.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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); +@@ -650,7 +650,7 @@ 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); + } + +@@ -773,14 +773,14 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/setup_percpu.c linux-3.1.1/arch/x86/kernel/setup_percpu.c +--- linux-3.1.1/arch/x86/kernel/setup_percpu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/setup_percpu.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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( + { + #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 +@@ -207,6 +205,11 @@ 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; +@@ -247,6 +250,12 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/signal.c linux-3.1.1/arch/x86/kernel/signal.c +--- linux-3.1.1/arch/x86/kernel/signal.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/signal.c 2011-11-16 19:39:49.000000000 -0500 +@@ -198,7 +198,7 @@ static unsigned long align_sigframe(unsi + * 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 +@@ -249,11 +249,11 @@ get_sigframe(struct k_sigaction *ka, str + * 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; + } +@@ -308,9 +308,9 @@ __setup_frame(int sig, struct k_sigactio + } + + 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; + +@@ -324,7 +324,7 @@ __setup_frame(int sig, struct k_sigactio + * 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; +@@ -378,7 +378,10 @@ static int __setup_rt_frame(int sig, str + 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); +@@ -390,7 +393,7 @@ static int __setup_rt_frame(int sig, str + * 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) +@@ -762,6 +765,8 @@ static void do_signal(struct pt_regs *re + siginfo_t info; + int signr; + ++ pax_track_stack(); ++ + /* + * We want the common case to go fast, which is why we may in certain + * cases get here from kernel mode. Just return without doing anything +@@ -769,7 +774,7 @@ static void do_signal(struct pt_regs *re + * 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 -urNp linux-3.1.1/arch/x86/kernel/smpboot.c linux-3.1.1/arch/x86/kernel/smpboot.c +--- linux-3.1.1/arch/x86/kernel/smpboot.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/smpboot.c 2011-11-16 18:39:07.000000000 -0500 +@@ -709,17 +709,20 @@ static int __cpuinit do_boot_cpu(int api + 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; + +@@ -861,6 +864,12 @@ int __cpuinit native_cpu_up(unsigned int + + 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 -urNp linux-3.1.1/arch/x86/kernel/step.c linux-3.1.1/arch/x86/kernel/step.c +--- linux-3.1.1/arch/x86/kernel/step.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/step.c 2011-11-16 18:39:07.000000000 -0500 +@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struc + 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(struc + 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 t + 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 -urNp linux-3.1.1/arch/x86/kernel/syscall_table_32.S linux-3.1.1/arch/x86/kernel/syscall_table_32.S +--- linux-3.1.1/arch/x86/kernel/syscall_table_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/syscall_table_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -1,3 +1,4 @@ ++.section .rodata,"a",@progbits + ENTRY(sys_call_table) + .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ + .long sys_exit +diff -urNp linux-3.1.1/arch/x86/kernel/sys_i386_32.c linux-3.1.1/arch/x86/kernel/sys_i386_32.c +--- linux-3.1.1/arch/x86/kernel/sys_i386_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/sys_i386_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/sys_x86_64.c linux-3.1.1/arch/x86/kernel/sys_x86_64.c +--- linux-3.1.1/arch/x86/kernel/sys_x86_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/sys_x86_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -32,8 +32,8 @@ 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_IA32) && (flags & MAP_32BIT)) { + unsigned long new_begin; +@@ -52,7 +52,7 @@ static void find_start_end(unsigned long + *begin = new_begin; + } + } else { +- *begin = TASK_UNMAPPED_BASE; ++ *begin = mm->mmap_base; + *end = TASK_SIZE; + } + } +@@ -69,16 +69,19 @@ arch_get_unmapped_area(struct file *filp + 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_IA32)) +@@ -106,7 +109,7 @@ 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: + */ +@@ -128,7 +131,7 @@ arch_get_unmapped_area_topdown(struct fi + { + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; +- unsigned long addr = addr0; ++ unsigned long base = mm->mmap_base, addr = addr0; + + /* requested length too big for entire address space */ + if (len > TASK_SIZE) +@@ -141,13 +144,18 @@ arch_get_unmapped_area_topdown(struct fi + if (!test_thread_flag(TIF_IA32) && (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 */ +@@ -162,7 +170,7 @@ arch_get_unmapped_area_topdown(struct fi + /* make sure it can fit in the remaining address space */ + if (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; + } +@@ -179,7 +187,7 @@ arch_get_unmapped_area_topdown(struct fi + * 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; + +@@ -188,8 +196,8 @@ arch_get_unmapped_area_topdown(struct fi + 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)); + + bottomup: + /* +@@ -198,13 +206,21 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/tboot.c linux-3.1.1/arch/x86/kernel/tboot.c +--- linux-3.1.1/arch/x86/kernel/tboot.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/tboot.c 2011-11-16 18:39:07.000000000 -0500 +@@ -218,7 +218,7 @@ static int tboot_setup_sleep(void) + + void tboot_shutdown(u32 shutdown_type) + { +- void (*shutdown)(void); ++ void (* __noreturn shutdown)(void); + + if (!tboot_enabled()) + return; +@@ -240,7 +240,7 @@ 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 */ +@@ -297,7 +297,7 @@ void tboot_sleep(u8 sleep_state, u32 pm1 + tboot_shutdown(acpi_shutdown_map[sleep_state]); + } + +-static atomic_t ap_wfs_count; ++static atomic_unchecked_t ap_wfs_count; + + static int tboot_wait_for_aps(int num_aps) + { +@@ -321,9 +321,9 @@ static int __cpuinit tboot_cpu_callback( + { + 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; + } +@@ -342,7 +342,7 @@ 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); + return 0; + } +diff -urNp linux-3.1.1/arch/x86/kernel/time.c linux-3.1.1/arch/x86/kernel/time.c +--- linux-3.1.1/arch/x86/kernel/time.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/time.c 2011-11-16 18:39:07.000000000 -0500 +@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_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); +@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_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 -urNp linux-3.1.1/arch/x86/kernel/tls.c linux-3.1.1/arch/x86/kernel/tls.c +--- linux-3.1.1/arch/x86/kernel/tls.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/tls.c 2011-11-16 18:39:07.000000000 -0500 +@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc + 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 -urNp linux-3.1.1/arch/x86/kernel/trampoline_32.S linux-3.1.1/arch/x86/kernel/trampoline_32.S +--- linux-3.1.1/arch/x86/kernel/trampoline_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/trampoline_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/trampoline_64.S linux-3.1.1/arch/x86/kernel/trampoline_64.S +--- linux-3.1.1/arch/x86/kernel/trampoline_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/trampoline_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/traps.c linux-3.1.1/arch/x86/kernel/traps.c +--- linux-3.1.1/arch/x86/kernel/traps.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/traps.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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); +@@ -117,13 +111,13 @@ static inline void preempt_conditional_c + } + + 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. +@@ -134,7 +128,7 @@ do_trap(int trapnr, int signr, char *str + } + #endif + +- if (!user_mode(regs)) ++ if (!user_mode_novm(regs)) + goto kernel_trap; + + #ifdef CONFIG_X86_32 +@@ -157,7 +151,7 @@ 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"); +@@ -174,8 +168,20 @@ kernel_trap: + if (!fixup_exception(regs)) { + tsk->thread.error_code = error_code; + tsk->thread.trap_no = 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 +@@ -264,14 +270,30 @@ do_general_protection(struct pt_regs *re + 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_no = 13; + +@@ -304,6 +326,13 @@ gp_in_kernel: + if (notify_die(DIE_GPF, "general protection fault", regs, + error_code, 13, 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); + } + +@@ -433,6 +462,17 @@ static notrace __kprobes void default_do + 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_enter(); + + inc_irq_stat(__nmi_count); +@@ -569,7 +609,7 @@ dotraplinkage void __kprobes do_debug(st + /* 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, 1); + preempt_conditional_cli(regs); +@@ -583,7 +623,7 @@ dotraplinkage void __kprobes do_debug(st + * 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; +@@ -612,7 +652,7 @@ void math_error(struct pt_regs *regs, in + return; + conditional_sti(regs); + +- if (!user_mode_vm(regs)) ++ if (!user_mode(regs)) + { + if (!fixup_exception(regs)) { + task->thread.error_code = error_code; +@@ -723,7 +763,7 @@ asmlinkage void __attribute__((weak)) sm + void __math_state_restore(void) + { + struct thread_info *thread = current_thread_info(); +- struct task_struct *tsk = thread->task; ++ struct task_struct *tsk = current; + + /* + * Paranoid restore. send a SIGSEGV if we fail to restore the state. +@@ -750,8 +790,7 @@ void __math_state_restore(void) + */ + asmlinkage void math_state_restore(void) + { +- struct thread_info *thread = current_thread_info(); +- struct task_struct *tsk = thread->task; ++ struct task_struct *tsk = current; + + if (!tsk_used_math(tsk)) { + local_irq_enable(); +diff -urNp linux-3.1.1/arch/x86/kernel/verify_cpu.S linux-3.1.1/arch/x86/kernel/verify_cpu.S +--- linux-3.1.1/arch/x86/kernel/verify_cpu.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/verify_cpu.S 2011-11-16 18:40:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/vm86_32.c linux-3.1.1/arch/x86/kernel/vm86_32.c +--- linux-3.1.1/arch/x86/kernel/vm86_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/vm86_32.c 2011-11-16 18:40:08.000000000 -0500 +@@ -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 ke + 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); +@@ -208,6 +209,13 @@ int sys_vm86old(struct vm86_struct __use + 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; +@@ -238,6 +246,14 @@ int sys_vm86(unsigned long cmd, unsigned + 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: +@@ -324,7 +340,7 @@ static void do_sys_vm86(struct kernel_vm + 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; +@@ -529,7 +545,7 @@ static void do_int(struct kernel_vm86_re + 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 -urNp linux-3.1.1/arch/x86/kernel/vmlinux.lds.S linux-3.1.1/arch/x86/kernel/vmlinux.lds.S +--- linux-3.1.1/arch/x86/kernel/vmlinux.lds.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/vmlinux.lds.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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; ++ ++#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) :text = 0x9090 ++ 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 -urNp linux-3.1.1/arch/x86/kernel/vsyscall_64.c linux-3.1.1/arch/x86/kernel/vsyscall_64.c +--- linux-3.1.1/arch/x86/kernel/vsyscall_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/vsyscall_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -56,15 +56,13 @@ DEFINE_VVAR(struct vsyscall_gtod_data, v + .lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock), + }; + +-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = NATIVE; ++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 +@@ -177,7 +175,7 @@ bool emulate_vsyscall(struct pt_regs *re + + tsk = current; + if (seccomp_mode(&tsk->seccomp)) +- do_exit(SIGKILL); ++ do_group_exit(SIGKILL); + + switch (vsyscall_nr) { + case 0: +@@ -219,8 +217,7 @@ bool emulate_vsyscall(struct pt_regs *re + return true; + + sigsegv: +- force_sig(SIGSEGV, current); +- return true; ++ do_group_exit(SIGKILL); + } + + /* +@@ -273,10 +270,7 @@ 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 -urNp linux-3.1.1/arch/x86/kernel/x8664_ksyms_64.c linux-3.1.1/arch/x86/kernel/x8664_ksyms_64.c +--- linux-3.1.1/arch/x86/kernel/x8664_ksyms_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/x8664_ksyms_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/kernel/xsave.c linux-3.1.1/arch/x86/kernel/xsave.c +--- linux-3.1.1/arch/x86/kernel/xsave.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kernel/xsave.c 2011-11-16 18:39:07.000000000 -0500 +@@ -130,7 +130,7 @@ int check_for_xstate(struct i387_fxsave_ + 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); + } + + /* +@@ -299,7 +299,7 @@ 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 -urNp linux-3.1.1/arch/x86/kvm/emulate.c linux-3.1.1/arch/x86/kvm/emulate.c +--- linux-3.1.1/arch/x86/kvm/emulate.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/emulate.c 2011-11-16 18:39:07.000000000 -0500 +@@ -96,7 +96,7 @@ + #define Src2ImmByte (2<<29) + #define Src2One (3<<29) + #define Src2Imm (4<<29) +-#define Src2Mask (7<<29) ++#define Src2Mask (7U<<29) + + #define X2(x...) x, x + #define X3(x...) X2(x), x +@@ -207,6 +207,7 @@ struct gprefix { + + #define ____emulate_2op(_op, _src, _dst, _eflags, _x, _y, _suffix, _dsttype) \ + do { \ ++ unsigned long _tmp; \ + __asm__ __volatile__ ( \ + _PRE_EFLAGS("0", "4", "2") \ + _op _suffix " %"_x"3,%1; " \ +@@ -220,8 +221,6 @@ struct gprefix { + /* Raw emulation: instruction has two explicit operands. */ + #define __emulate_2op_nobyte(_op,_src,_dst,_eflags,_wx,_wy,_lx,_ly,_qx,_qy) \ + do { \ +- unsigned long _tmp; \ +- \ + switch ((_dst).bytes) { \ + case 2: \ + ____emulate_2op(_op,_src,_dst,_eflags,_wx,_wy,"w",u16);\ +@@ -237,7 +236,6 @@ struct gprefix { + + #define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ + do { \ +- unsigned long _tmp; \ + switch ((_dst).bytes) { \ + case 1: \ + ____emulate_2op(_op,_src,_dst,_eflags,_bx,_by,"b",u8); \ +diff -urNp linux-3.1.1/arch/x86/kvm/lapic.c linux-3.1.1/arch/x86/kvm/lapic.c +--- linux-3.1.1/arch/x86/kvm/lapic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/lapic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -53,7 +53,7 @@ + #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 -urNp linux-3.1.1/arch/x86/kvm/mmu.c linux-3.1.1/arch/x86/kvm/mmu.c +--- linux-3.1.1/arch/x86/kvm/mmu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/mmu.c 2011-11-16 18:39:07.000000000 -0500 +@@ -3552,7 +3552,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * + + pgprintk("%s: gpa %llx bytes %d\n", __func__, gpa, bytes); + +- invlpg_counter = atomic_read(&vcpu->kvm->arch.invlpg_counter); ++ invlpg_counter = atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter); + + /* + * Assume that the pte write on a page table of the same type +@@ -3584,7 +3584,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * + } + + spin_lock(&vcpu->kvm->mmu_lock); +- if (atomic_read(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) ++ if (atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) + gentry = 0; + kvm_mmu_free_some_pages(vcpu); + ++vcpu->kvm->stat.mmu_pte_write; +diff -urNp linux-3.1.1/arch/x86/kvm/paging_tmpl.h linux-3.1.1/arch/x86/kvm/paging_tmpl.h +--- linux-3.1.1/arch/x86/kvm/paging_tmpl.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/paging_tmpl.h 2011-11-16 19:40:44.000000000 -0500 +@@ -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; + +@@ -575,6 +575,8 @@ static int FNAME(page_fault)(struct kvm_ + unsigned long mmu_seq; + bool map_writable; + ++ pax_track_stack(); ++ + pgprintk("%s: addr %lx err %x\n", __func__, addr, error_code); + + if (unlikely(error_code & PFERR_RSVD_MASK)) +@@ -701,7 +703,7 @@ static void FNAME(invlpg)(struct kvm_vcp + if (need_flush) + kvm_flush_remote_tlbs(vcpu->kvm); + +- atomic_inc(&vcpu->kvm->arch.invlpg_counter); ++ atomic_inc_unchecked(&vcpu->kvm->arch.invlpg_counter); + + spin_unlock(&vcpu->kvm->mmu_lock); + +diff -urNp linux-3.1.1/arch/x86/kvm/svm.c linux-3.1.1/arch/x86/kvm/svm.c +--- linux-3.1.1/arch/x86/kvm/svm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/svm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -3381,7 +3381,11 @@ static void reload_tss(struct kvm_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(); + } + +@@ -3759,6 +3763,10 @@ static void svm_vcpu_run(struct kvm_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 -urNp linux-3.1.1/arch/x86/kvm/vmx.c linux-3.1.1/arch/x86/kvm/vmx.c +--- linux-3.1.1/arch/x86/kvm/vmx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/vmx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1251,7 +1251,11 @@ 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(); + } + +@@ -2520,8 +2524,11 @@ 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(); +@@ -3535,7 +3542,7 @@ static void vmx_set_constant_host_state( + vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ + + asm("mov $.Lkvm_vmx_return, %0" : "=r"(tmpl)); +- vmcs_writel(HOST_RIP, tmpl); /* 22.2.5 */ ++ vmcs_writel(HOST_RIP, ktla_ktva(tmpl)); /* 22.2.5 */ + + rdmsr(MSR_IA32_SYSENTER_CS, low32, high32); + vmcs_write32(HOST_IA32_SYSENTER_CS, low32); +@@ -6021,6 +6028,12 @@ static void __noclone vmx_vcpu_run(struc + "jmp .Lkvm_vmx_return \n\t" + ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" + ".Lkvm_vmx_return: " ++ ++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) ++ "ljmp %[cs],$.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" +@@ -6069,6 +6082,11 @@ static void __noclone vmx_vcpu_run(struc + #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 +@@ -6097,7 +6115,16 @@ static void __noclone vmx_vcpu_run(struc + } + } + +- 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 -urNp linux-3.1.1/arch/x86/kvm/x86.c linux-3.1.1/arch/x86/kvm/x86.c +--- linux-3.1.1/arch/x86/kvm/x86.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/kvm/x86.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1334,8 +1334,8 @@ static int xen_hvm_config(struct kvm_vcp + { + 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; +@@ -2137,6 +2137,8 @@ long kvm_arch_dev_ioctl(struct file *fil + 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; +@@ -2312,15 +2314,20 @@ static int kvm_vcpu_ioctl_set_cpuid2(str + 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); +@@ -2335,15 +2342,19 @@ static int kvm_vcpu_ioctl_get_cpuid2(str + 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: +@@ -2718,7 +2729,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru + 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; +@@ -5089,7 +5100,7 @@ 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 -urNp linux-3.1.1/arch/x86/lguest/boot.c linux-3.1.1/arch/x86/lguest/boot.c +--- linux-3.1.1/arch/x86/lguest/boot.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lguest/boot.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1184,9 +1184,10 @@ static __init int early_put_chars(u32 vt + * 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 -urNp linux-3.1.1/arch/x86/lib/atomic64_32.c linux-3.1.1/arch/x86/lib/atomic64_32.c +--- linux-3.1.1/arch/x86/lib/atomic64_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/atomic64_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -8,18 +8,30 @@ + + long long atomic64_read_cx8(long long, const atomic64_t *v); + EXPORT_SYMBOL(atomic64_read_cx8); ++long long atomic64_read_unchecked_cx8(long long, const atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_read_unchecked_cx8); + long long atomic64_set_cx8(long long, const atomic64_t *v); + EXPORT_SYMBOL(atomic64_set_cx8); ++long long atomic64_set_unchecked_cx8(long long, const atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_set_unchecked_cx8); + long long atomic64_xchg_cx8(long long, unsigned high); + EXPORT_SYMBOL(atomic64_xchg_cx8); + long long atomic64_add_return_cx8(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_add_return_cx8); ++long long atomic64_add_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_add_return_unchecked_cx8); + long long atomic64_sub_return_cx8(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_sub_return_cx8); ++long long atomic64_sub_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_sub_return_unchecked_cx8); + long long atomic64_inc_return_cx8(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_inc_return_cx8); ++long long atomic64_inc_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_inc_return_unchecked_cx8); + long long atomic64_dec_return_cx8(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_dec_return_cx8); ++long long atomic64_dec_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_dec_return_unchecked_cx8); + long long atomic64_dec_if_positive_cx8(atomic64_t *v); + EXPORT_SYMBOL(atomic64_dec_if_positive_cx8); + int atomic64_inc_not_zero_cx8(atomic64_t *v); +@@ -30,26 +42,46 @@ EXPORT_SYMBOL(atomic64_add_unless_cx8); + #ifndef CONFIG_X86_CMPXCHG64 + long long atomic64_read_386(long long, const atomic64_t *v); + EXPORT_SYMBOL(atomic64_read_386); ++long long atomic64_read_unchecked_386(long long, const atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_read_unchecked_386); + long long atomic64_set_386(long long, const atomic64_t *v); + EXPORT_SYMBOL(atomic64_set_386); ++long long atomic64_set_unchecked_386(long long, const atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_set_unchecked_386); + long long atomic64_xchg_386(long long, unsigned high); + EXPORT_SYMBOL(atomic64_xchg_386); + long long atomic64_add_return_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_add_return_386); ++long long atomic64_add_return_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_add_return_unchecked_386); + long long atomic64_sub_return_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_sub_return_386); ++long long atomic64_sub_return_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_sub_return_unchecked_386); + long long atomic64_inc_return_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_inc_return_386); ++long long atomic64_inc_return_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_inc_return_unchecked_386); + long long atomic64_dec_return_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_dec_return_386); ++long long atomic64_dec_return_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_dec_return_unchecked_386); + long long atomic64_add_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_add_386); ++long long atomic64_add_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_add_unchecked_386); + long long atomic64_sub_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_sub_386); ++long long atomic64_sub_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_sub_unchecked_386); + long long atomic64_inc_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_inc_386); ++long long atomic64_inc_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_inc_unchecked_386); + long long atomic64_dec_386(long long a, atomic64_t *v); + EXPORT_SYMBOL(atomic64_dec_386); ++long long atomic64_dec_unchecked_386(long long a, atomic64_unchecked_t *v); ++EXPORT_SYMBOL(atomic64_dec_unchecked_386); + long long atomic64_dec_if_positive_386(atomic64_t *v); + EXPORT_SYMBOL(atomic64_dec_if_positive_386); + int atomic64_inc_not_zero_386(atomic64_t *v); +diff -urNp linux-3.1.1/arch/x86/lib/atomic64_386_32.S linux-3.1.1/arch/x86/lib/atomic64_386_32.S +--- linux-3.1.1/arch/x86/lib/atomic64_386_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/atomic64_386_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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, %esi + 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 -urNp linux-3.1.1/arch/x86/lib/atomic64_cx8_32.S linux-3.1.1/arch/x86/lib/atomic64_cx8_32.S +--- linux-3.1.1/arch/x86/lib/atomic64_cx8_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/atomic64_cx8_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + +@@ -62,12 +87,13 @@ 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 +@@ -84,27 +110,44 @@ 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 + +@@ -114,21 +157,39 @@ 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 +@@ -140,6 +201,13 @@ 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) +@@ -149,6 +217,7 @@ 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) +@@ -174,6 +243,13 @@ ENTRY(atomic64_add_unless_cx8) + movl %edx, %ecx + addl %esi, %ebx + adcl %edi, %ecx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 3f) ++#endif ++ + LOCK_PREFIX + cmpxchg8b (%ebp) + jne 1b +@@ -184,6 +260,7 @@ ENTRY(atomic64_add_unless_cx8) + CFI_ADJUST_CFA_OFFSET -8 + RESTORE ebx + RESTORE ebp ++ pax_force_retaddr + ret + 4: + cmpl %edx, 4(%esp) +@@ -206,6 +283,13 @@ ENTRY(atomic64_inc_not_zero_cx8) + movl %edx, %ecx + addl $1, %ebx + adcl $0, %ecx ++ ++#ifdef CONFIG_PAX_REFCOUNT ++ into ++1234: ++ _ASM_EXTABLE(1234b, 3f) ++#endif ++ + LOCK_PREFIX + cmpxchg8b (%esi) + jne 1b +@@ -213,6 +297,7 @@ ENTRY(atomic64_inc_not_zero_cx8) + movl $1, %eax + 3: + RESTORE ebx ++ pax_force_retaddr + ret + 4: + testl %edx, %edx +diff -urNp linux-3.1.1/arch/x86/lib/checksum_32.S linux-3.1.1/arch/x86/lib/checksum_32.S +--- linux-3.1.1/arch/x86/lib/checksum_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/checksum_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 ( + + #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 -urNp linux-3.1.1/arch/x86/lib/clear_page_64.S linux-3.1.1/arch/x86/lib/clear_page_64.S +--- linux-3.1.1/arch/x86/lib/clear_page_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/clear_page_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/cmpxchg16b_emu.S linux-3.1.1/arch/x86/lib/cmpxchg16b_emu.S +--- linux-3.1.1/arch/x86/lib/cmpxchg16b_emu.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/cmpxchg16b_emu.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/copy_page_64.S linux-3.1.1/arch/x86/lib/copy_page_64.S +--- linux-3.1.1/arch/x86/lib/copy_page_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/copy_page_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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) +@@ -95,6 +96,7 @@ ENTRY(copy_page) + CFI_RESTORE r13 + addq $3*8,%rsp + CFI_ADJUST_CFA_OFFSET -3*8 ++ pax_force_retaddr + ret + .Lcopy_page_end: + CFI_ENDPROC +@@ -105,7 +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 -urNp linux-3.1.1/arch/x86/lib/copy_user_64.S linux-3.1.1/arch/x86/lib/copy_user_64.S +--- linux-3.1.1/arch/x86/lib/copy_user_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/copy_user_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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) +@@ -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 -urNp linux-3.1.1/arch/x86/lib/copy_user_nocache_64.S linux-3.1.1/arch/x86/lib/copy_user_nocache_64.S +--- linux-3.1.1/arch/x86/lib/copy_user_nocache_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/copy_user_nocache_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 +@@ -98,6 +109,7 @@ ENTRY(__copy_user_nocache) + jnz 21b + 23: xorl %eax,%eax + sfence ++ pax_force_retaddr + ret + + .section .fixup,"ax" +diff -urNp linux-3.1.1/arch/x86/lib/csum-copy_64.S linux-3.1.1/arch/x86/lib/csum-copy_64.S +--- linux-3.1.1/arch/x86/lib/csum-copy_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/csum-copy_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + ret + CFI_RESTORE_STATE + +diff -urNp linux-3.1.1/arch/x86/lib/csum-wrappers_64.c linux-3.1.1/arch/x86/lib/csum-wrappers_64.c +--- linux-3.1.1/arch/x86/lib/csum-wrappers_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/csum-wrappers_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -52,7 +52,13 @@ csum_partial_copy_from_user(const void _ + 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 *sr + } + + *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 -urNp linux-3.1.1/arch/x86/lib/getuser.S linux-3.1.1/arch/x86/lib/getuser.S +--- linux-3.1.1/arch/x86/lib/getuser.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/getuser.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/insn.c linux-3.1.1/arch/x86/lib/insn.c +--- linux-3.1.1/arch/x86/lib/insn.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/insn.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + + #define get_next(t, insn) \ + ({t r; r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; }) +@@ -40,8 +45,8 @@ + 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 -urNp linux-3.1.1/arch/x86/lib/iomap_copy_64.S linux-3.1.1/arch/x86/lib/iomap_copy_64.S +--- linux-3.1.1/arch/x86/lib/iomap_copy_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/iomap_copy_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/memcpy_64.S linux-3.1.1/arch/x86/lib/memcpy_64.S +--- linux-3.1.1/arch/x86/lib/memcpy_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/memcpy_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -34,6 +34,7 @@ + rep movsq + movl %edx, %ecx + rep movsb ++ pax_force_retaddr + ret + .Lmemcpy_e: + .previous +@@ -51,6 +52,7 @@ + + movl %edx, %ecx + rep movsb ++ pax_force_retaddr + ret + .Lmemcpy_e_e: + .previous +@@ -141,6 +143,7 @@ ENTRY(memcpy) + movq %r9, 1*8(%rdi) + movq %r10, -2*8(%rdi, %rdx) + movq %r11, -1*8(%rdi, %rdx) ++ pax_force_retaddr + retq + .p2align 4 + .Lless_16bytes: +@@ -153,6 +156,7 @@ 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: +@@ -166,6 +170,7 @@ ENTRY(memcpy) + movl -4(%rsi, %rdx), %r8d + movl %ecx, (%rdi) + movl %r8d, -4(%rdi, %rdx) ++ pax_force_retaddr + retq + .p2align 4 + .Lless_3bytes: +@@ -183,6 +188,7 @@ ENTRY(memcpy) + jnz .Lloop_1 + + .Lend: ++ pax_force_retaddr + retq + CFI_ENDPROC + ENDPROC(memcpy) +diff -urNp linux-3.1.1/arch/x86/lib/memmove_64.S linux-3.1.1/arch/x86/lib/memmove_64.S +--- linux-3.1.1/arch/x86/lib/memmove_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/memmove_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/memset_64.S linux-3.1.1/arch/x86/lib/memset_64.S +--- linux-3.1.1/arch/x86/lib/memset_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/memset_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -31,6 +31,7 @@ + movl %r8d,%ecx + rep stosb + movq %r9,%rax ++ pax_force_retaddr + ret + .Lmemset_e: + .previous +@@ -53,6 +54,7 @@ + movl %edx,%ecx + rep stosb + movq %r9,%rax ++ pax_force_retaddr + ret + .Lmemset_e_e: + .previous +@@ -121,6 +123,7 @@ ENTRY(__memset) + + .Lende: + movq %r10,%rax ++ pax_force_retaddr + ret + + CFI_RESTORE_STATE +diff -urNp linux-3.1.1/arch/x86/lib/mmx_32.c linux-3.1.1/arch/x86/lib/mmx_32.c +--- linux-3.1.1/arch/x86/lib/mmx_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/mmx_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void * + { + 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 * + 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, voi + * 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 -urNp linux-3.1.1/arch/x86/lib/msr-reg.S linux-3.1.1/arch/x86/lib/msr-reg.S +--- linux-3.1.1/arch/x86/lib/msr-reg.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/msr-reg.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + /* +@@ -37,6 +38,7 @@ ENTRY(native_\op\()_safe_regs) + movl %edi, 28(%r10) + popq_cfi %rbp + popq_cfi %rbx ++ pax_force_retaddr + ret + 3: + CFI_RESTORE_STATE +diff -urNp linux-3.1.1/arch/x86/lib/putuser.S linux-3.1.1/arch/x86/lib/putuser.S +--- linux-3.1.1/arch/x86/lib/putuser.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/putuser.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 $PAX_USER_SHADOW_BASE,%_ASM_BX ++ cmp %_ASM_BX,%_ASM_CX ++ jb 1234f ++ xor %ebx,%ebx ++1234: ++#endif ++ ++#endif ++ ++4: __copyuser_seg mov %_ASM_AX,(_DEST) + #ifdef CONFIG_X86_32 +-5: movl %edx,4(%_ASM_CX) ++5: __copyuser_seg movl %edx,4(_DEST) + #endif + xor %eax,%eax + EXIT +diff -urNp linux-3.1.1/arch/x86/lib/rwlock.S linux-3.1.1/arch/x86/lib/rwlock.S +--- linux-3.1.1/arch/x86/lib/rwlock.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/rwlock.S 2011-11-16 18:39:07.000000000 -0500 +@@ -23,6 +23,7 @@ ENTRY(__write_lock_failed) + WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) + jnz 0b + ENDFRAME ++ pax_force_retaddr + ret + CFI_ENDPROC + END(__write_lock_failed) +@@ -39,6 +40,7 @@ ENTRY(__read_lock_failed) + READ_LOCK_SIZE(dec) (%__lock_ptr) + js 0b + ENDFRAME ++ pax_force_retaddr + ret + CFI_ENDPROC + END(__read_lock_failed) +diff -urNp linux-3.1.1/arch/x86/lib/rwsem.S linux-3.1.1/arch/x86/lib/rwsem.S +--- linux-3.1.1/arch/x86/lib/rwsem.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/rwsem.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/thunk_64.S linux-3.1.1/arch/x86/lib/thunk_64.S +--- linux-3.1.1/arch/x86/lib/thunk_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/thunk_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/lib/usercopy_32.c linux-3.1.1/arch/x86/lib/usercopy_32.c +--- linux-3.1.1/arch/x86/lib/usercopy_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/usercopy_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -43,7 +43,7 @@ do { \ + __asm__ __volatile__( \ + " testl %1,%1\n" \ + " jz 2f\n" \ +- "0: lodsb\n" \ ++ "0: "__copyuser_seg"lodsb\n" \ + " stosb\n" \ + " testb %%al,%%al\n" \ + " jz 1f\n" \ +@@ -128,10 +128,12 @@ 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" \ +@@ -200,6 +202,7 @@ long strnlen_user(const char __user *s, + might_fault(); + + __asm__ __volatile__( ++ __COPYUSER_SET_ES + " testl %0, %0\n" + " jz 3f\n" + " andl %0,%%ecx\n" +@@ -208,6 +211,7 @@ long strnlen_user(const char __user *s, + " 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" +@@ -227,7 +231,7 @@ 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__( +@@ -239,36 +243,36 @@ __copy_user_intel(void __user *to, const + " .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" +@@ -278,10 +282,119 @@ __copy_user_intel(void __user *to, const + " 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" ++ ".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 ++__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" +@@ -339,41 +452,41 @@ __copy_user_zeroing_intel(void *to, cons + 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" +@@ -385,9 +498,9 @@ __copy_user_zeroing_intel(void *to, cons + " 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" +@@ -440,41 +553,41 @@ static unsigned long __copy_user_zeroing + + __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" +@@ -487,9 +600,9 @@ static unsigned long __copy_user_zeroing + " 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" +@@ -537,41 +650,41 @@ static unsigned long __copy_user_intel_n + + __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" +@@ -584,9 +697,9 @@ static unsigned long __copy_user_intel_n + " 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" +@@ -629,32 +742,36 @@ static unsigned long __copy_user_intel_n + */ + 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" \ +@@ -682,14 +799,14 @@ 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" \ +@@ -775,9 +892,9 @@ 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); +@@ -797,10 +914,9 @@ unsigned long __copy_from_user_ll_nozero + 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); +@@ -827,65 +943,50 @@ unsigned long __copy_from_user_ll_nocach + 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) ++void copy_from_user_overflow(void) + { +- if (access_ok(VERIFY_WRITE, to, n)) +- n = __copy_to_user(to, from, n); +- return n; ++ WARN(1, "Buffer overflow detected!\n"); + } +-EXPORT_SYMBOL(copy_to_user); ++EXPORT_SYMBOL(copy_from_user_overflow); + +-/** +- * 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) ++void copy_to_user_overflow(void) + { +- if (access_ok(VERIFY_READ, from, n)) +- n = __copy_from_user(to, from, n); +- else +- memset(to, 0, n); +- return n; ++ WARN(1, "Buffer overflow detected!\n"); + } +-EXPORT_SYMBOL(_copy_from_user); ++EXPORT_SYMBOL(copy_to_user_overflow); + +-void copy_from_user_overflow(void) ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++void __set_fs(mm_segment_t x) + { +- WARN(1, "Buffer overflow detected!\n"); ++ 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(copy_from_user_overflow); ++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 -urNp linux-3.1.1/arch/x86/lib/usercopy_64.c linux-3.1.1/arch/x86/lib/usercopy_64.c +--- linux-3.1.1/arch/x86/lib/usercopy_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/lib/usercopy_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -42,6 +42,12 @@ long + __strncpy_from_user(char *dst, const char __user *src, long count) + { + long res; ++ ++#ifdef CONFIG_PAX_MEMORY_UDEREF ++ if ((unsigned long)src < PAX_USER_SHADOW_BASE) ++ src += PAX_USER_SHADOW_BASE; ++#endif ++ + __do_strncpy_from_user(dst, src, count, res); + return res; + } +@@ -65,6 +71,12 @@ unsigned long __clear_user(void __user * + { + 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( +@@ -151,10 +163,18 @@ EXPORT_SYMBOL(strlen_user); + + unsigned long copy_in_user(void __user *to, const void __user *from, unsigned 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); + +@@ -164,7 +184,7 @@ 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 len, unsigned zerorest) + { + char c; + unsigned zero_len; +diff -urNp linux-3.1.1/arch/x86/Makefile linux-3.1.1/arch/x86/Makefile +--- linux-3.1.1/arch/x86/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/Makefile 2011-11-17 18:30:30.000000000 -0500 +@@ -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 + +@@ -195,3 +196,12 @@ 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 -urNp linux-3.1.1/arch/x86/mm/extable.c linux-3.1.1/arch/x86/mm/extable.c +--- linux-3.1.1/arch/x86/mm/extable.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/extable.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/mm/fault.c linux-3.1.1/arch/x86/mm/fault.c +--- linux-3.1.1/arch/x86/mm/fault.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/fault.c 2011-11-16 20:43:50.000000000 -0500 +@@ -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/vsyscall.h> ++#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_ + 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 *re + 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, unsign + 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 s + 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_CPUS; ++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_fa + * 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_fa + * 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; +@@ -534,7 +604,7 @@ static int is_errata93(struct pt_regs *r + 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; +@@ -561,7 +631,7 @@ static int is_f00f_bug(struct pt_regs *r + } + + 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, +@@ -570,14 +640,25 @@ show_fault_oops(struct pt_regs *regs, un + 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) +@@ -733,6 +814,21 @@ __bad_area_nosemaphore(struct pt_regs *r + } + #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); + +@@ -829,7 +925,7 @@ do_sigbus(struct pt_regs *regs, unsigned + 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 +@@ -884,6 +980,99 @@ static int spurious_fault_check(unsigned + 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. + * +@@ -956,6 +1145,9 @@ 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))) +@@ -989,19 +1181,33 @@ do_page_fault(struct pt_regs *regs, unsi + { + 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); + ++ /* Get the faulting address: */ ++ 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)) { ++ 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; + +- /* Get the faulting address: */ +- address = read_cr2(); +- + /* + * Detect and handle instructions that would cause a page fault for + * both a tracked kernel page and a userspace page. +@@ -1061,7 +1267,7 @@ do_page_fault(struct pt_regs *regs, unsi + * 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 { +@@ -1116,6 +1322,11 @@ 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); +@@ -1127,18 +1338,24 @@ 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; +@@ -1193,3 +1410,240 @@ 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: 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: 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 -urNp linux-3.1.1/arch/x86/mm/gup.c linux-3.1.1/arch/x86/mm/gup.c +--- linux-3.1.1/arch/x86/mm/gup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/gup.c 2011-11-16 18:39:07.000000000 -0500 +@@ -253,7 +253,7 @@ int __get_user_pages_fast(unsigned long + 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 -urNp linux-3.1.1/arch/x86/mm/highmem_32.c linux-3.1.1/arch/x86/mm/highmem_32.c +--- linux-3.1.1/arch/x86/mm/highmem_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/highmem_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -44,7 +44,10 @@ void *kmap_atomic_prot(struct page *page + 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(); + + return (void *)vaddr; + } +diff -urNp linux-3.1.1/arch/x86/mm/hugetlbpage.c linux-3.1.1/arch/x86/mm/hugetlbpage.c +--- linux-3.1.1/arch/x86/mm/hugetlbpage.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/hugetlbpage.c 2011-11-16 18:39:07.000000000 -0500 +@@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmappe + 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, +@@ -308,10 +316,9 @@ static unsigned long hugetlb_get_unmappe + { + struct hstate *h = hstate_file(file); + struct mm_struct *mm = current->mm; +- struct vm_area_struct *vma, *prev_vma; +- unsigned long base = mm->mmap_base, addr = addr0; ++ struct vm_area_struct *vma; ++ unsigned long base = mm->mmap_base, addr; + unsigned long largest_hole = mm->cached_hole_size; +- int first_time = 1; + + /* don't allow allocations above current base */ + if (mm->free_area_cache > base) +@@ -321,64 +328,63 @@ static unsigned long hugetlb_get_unmappe + largest_hole = 0; + mm->free_area_cache = base; + } +-try_again: ++ + /* 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); ++ vma = find_vma(mm, addr); + /* + * Lookup failure means no vma is above this address, + * i.e. return with success: +- */ +- if (!(vma = find_vma_prev(mm, addr, &prev_vma))) +- return addr; +- +- /* + * new region fits between prev_vma->vm_end and + * vma->vm_start, use it: + */ +- if (addr + len <= vma->vm_start && +- (!prev_vma || (addr >= prev_vma->vm_end))) { ++ 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); +- } else { +- /* pull free_area_cache down to the first hole */ +- if (mm->free_area_cache == vma->vm_end) { +- mm->free_area_cache = vma->vm_start; +- mm->cached_hole_size = largest_hole; +- } ++ mm->cached_hole_size = largest_hole; ++ return (mm->free_area_cache = addr); ++ } ++ /* pull free_area_cache down to the first hole */ ++ if (mm->free_area_cache == vma->vm_end) { ++ mm->free_area_cache = vma->vm_start; ++ mm->cached_hole_size = largest_hole; + } + + /* 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 (first_time) { +- mm->free_area_cache = base; +- largest_hole = 0; +- first_time = 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); +@@ -386,6 +392,7 @@ fail: + /* + * Restore the topdown base: + */ ++ mm->mmap_base = base; + mm->free_area_cache = base; + mm->cached_hole_size = ~0UL; + +@@ -399,10 +406,19 @@ hugetlb_get_unmapped_area(struct file *f + 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) { +@@ -414,8 +430,7 @@ hugetlb_get_unmapped_area(struct file *f + 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 -urNp linux-3.1.1/arch/x86/mm/init_32.c linux-3.1.1/arch/x86/mm/init_32.c +--- linux-3.1.1/arch/x86/mm/init_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/init_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -74,36 +74,6 @@ 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: + */ +@@ -123,13 +93,28 @@ static pte_t * __init one_page_table_ini + 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); +@@ -203,6 +188,7 @@ page_table_range_init(unsigned long star + int pgd_idx, pmd_idx; + unsigned long vaddr; + pgd_t *pgd; ++ pud_t *pud; + pmd_t *pmd; + pte_t *pte = NULL; + +@@ -212,8 +198,13 @@ page_table_range_init(unsigned long star + 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), +@@ -225,11 +216,20 @@ page_table_range_init(unsigned long star + } + } + +-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; + } + + /* +@@ -246,9 +246,10 @@ kernel_physical_mapping_init(unsigned lo + 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; +@@ -281,8 +282,13 @@ 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; +@@ -294,14 +300,13 @@ 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 +@@ -311,11 +316,7 @@ 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++; +@@ -332,7 +333,7 @@ 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 +@@ -340,7 +341,7 @@ 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++; +@@ -472,7 +473,7 @@ void __init native_pagetable_setup_start + + 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); +@@ -524,12 +525,10 @@ void __init early_ioremap_page_table_ran + + 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 */ +@@ -757,6 +756,12 @@ 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 +@@ -774,7 +779,7 @@ void __init mem_init(void) + set_highmem_pages_init(); + + 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, " +@@ -815,10 +820,10 @@ 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); + + /* +@@ -896,6 +901,7 @@ 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); + +@@ -910,6 +916,7 @@ 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); + +@@ -938,6 +945,7 @@ 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 -urNp linux-3.1.1/arch/x86/mm/init_64.c linux-3.1.1/arch/x86/mm/init_64.c +--- linux-3.1.1/arch/x86/mm/init_64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/init_64.c 2011-11-16 18:39:07.000000000 -0500 +@@ -75,7 +75,7 @@ early_param("gbpages", parse_direct_gbpa + * 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; +@@ -108,12 +108,22 @@ void sync_global_pgds(unsigned long star + + 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_CPUS; ++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; +@@ -122,6 +132,7 @@ void sync_global_pgds(unsigned long star + /* 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); +@@ -129,7 +140,10 @@ void sync_global_pgds(unsigned long star + 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); + } +@@ -203,7 +217,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, + 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. +@@ -262,14 +278,12 @@ static void __init __init_extra_mapping( + 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)); +@@ -330,7 +344,7 @@ static __ref void *alloc_low_page(unsign + 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; +@@ -346,7 +360,7 @@ static __ref void *map_low_page(void *vi + + 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; +@@ -693,6 +707,12 @@ 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; +@@ -853,8 +873,8 @@ 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) +@@ -888,7 +908,7 @@ int in_gate_area_no_mm(unsigned long add + + 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 -urNp linux-3.1.1/arch/x86/mm/init.c linux-3.1.1/arch/x86/mm/init.c +--- linux-3.1.1/arch/x86/mm/init.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/init.c 2011-11-17 18:31:28.000000000 -0500 +@@ -31,7 +31,7 @@ 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; +@@ -312,8 +312,29 @@ unsigned long __init_refok init_memory_m + */ + int devmem_is_allowed(unsigned long pagenr) + { +- if (pagenr <= 256) ++#ifdef CONFIG_GRKERNSEC_KMEM ++ /* allow BDA */ ++ if (!pagenr) ++ return 1; ++ /* allow EBDA */ ++ if ((0x9f000 >> PAGE_SHIFT) == pagenr) ++ 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 0; ++#endif + if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) + return 0; + if (!page_is_ram(pagenr)) +@@ -372,6 +393,86 @@ void free_init_pages(char *what, unsigne + + 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; ++ ++ 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_CPUS; 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 ++ pgd_t *pgd; ++ pud_t *pud; ++ pmd_t *pmd; ++ unsigned long addr, end; ++ ++ /* 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 -urNp linux-3.1.1/arch/x86/mm/iomap_32.c linux-3.1.1/arch/x86/mm/iomap_32.c +--- linux-3.1.1/arch/x86/mm/iomap_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/iomap_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long + 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 -urNp linux-3.1.1/arch/x86/mm/ioremap.c linux-3.1.1/arch/x86/mm/ioremap.c +--- linux-3.1.1/arch/x86/mm/ioremap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/ioremap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(re + 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); + } +@@ -344,7 +344,7 @@ static int __init early_ioremap_debug_se + 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 +381,7 @@ 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 -urNp linux-3.1.1/arch/x86/mm/kmemcheck/kmemcheck.c linux-3.1.1/arch/x86/mm/kmemcheck/kmemcheck.c +--- linux-3.1.1/arch/x86/mm/kmemcheck/kmemcheck.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/kmemcheck/kmemcheck.c 2011-11-16 18:39:07.000000000 -0500 +@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *reg + * 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 -urNp linux-3.1.1/arch/x86/mm/mmap.c linux-3.1.1/arch/x86/mm/mmap.c +--- linux-3.1.1/arch/x86/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/mmap.c 2011-11-16 18:39:07.000000000 -0500 +@@ -49,7 +49,7 @@ static unsigned int stack_maxrandom_size + * 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) + + /* + * True on X86_32 or when emulating IA32 on X86_64 +@@ -94,27 +94,40 @@ 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(); + } + +@@ -125,11 +138,23 @@ static unsigned long mmap_legacy_base(vo + 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 -urNp linux-3.1.1/arch/x86/mm/mmio-mod.c linux-3.1.1/arch/x86/mm/mmio-mod.c +--- linux-3.1.1/arch/x86/mm/mmio-mod.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/mmio-mod.c 2011-11-16 18:39:07.000000000 -0500 +@@ -195,7 +195,7 @@ static void pre(struct kmmio_probe *p, s + 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 | +@@ -235,7 +235,7 @@ static void post(struct kmmio_probe *p, + 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 = { +@@ -259,7 +259,7 @@ static void ioremap_trace_core(resource_ + .private = trace + }, + .phys = offset, +- .id = atomic_inc_return(&next_id) ++ .id = atomic_inc_return_unchecked(&next_id) + }; + map.map_id = trace->id; + +diff -urNp linux-3.1.1/arch/x86/mm/pageattr.c linux-3.1.1/arch/x86/mm/pageattr.c +--- linux-3.1.1/arch/x86/mm/pageattr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pageattr.c 2011-11-16 18:39:07.000000000 -0500 +@@ -261,7 +261,7 @@ static inline pgprot_t static_protection + */ + #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_protection + * 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_protection + 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_protection + } + #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_CPUS; ++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 -urNp linux-3.1.1/arch/x86/mm/pageattr-test.c linux-3.1.1/arch/x86/mm/pageattr-test.c +--- linux-3.1.1/arch/x86/mm/pageattr-test.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pageattr-test.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/mm/pat.c linux-3.1.1/arch/x86/mm/pat.c +--- linux-3.1.1/arch/x86/mm/pat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pat.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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(unsig + 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, un + 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, + 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, + 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 -urNp linux-3.1.1/arch/x86/mm/pf_in.c linux-3.1.1/arch/x86/mm/pf_in.c +--- linux-3.1.1/arch/x86/mm/pf_in.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pf_in.c 2011-11-16 18:39:07.000000000 -0500 +@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned l + 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(un + 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 + 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 l + 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 l + 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 -urNp linux-3.1.1/arch/x86/mm/pgtable_32.c linux-3.1.1/arch/x86/mm/pgtable_32.c +--- linux-3.1.1/arch/x86/mm/pgtable_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pgtable_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -48,10 +48,13 @@ void set_pte_vaddr(unsigned long vaddr, + 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 -urNp linux-3.1.1/arch/x86/mm/pgtable.c linux-3.1.1/arch/x86/mm/pgtable.c +--- linux-3.1.1/arch/x86/mm/pgtable.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/pgtable.c 2011-11-16 18:39:07.000000000 -0500 +@@ -84,10 +84,52 @@ static inline void pgd_list_del(pgd_t *p + 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, int count) ++{ ++ 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, int count) ++{ ++ while (count--) ++ ++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) ++ *dst++ = __pgd(pgd_val(*src++) & clone_pgd_mask); ++#else ++ *dst++ = *src++; ++#endif + ++} ++#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 +170,7 @@ 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 +183,7 @@ 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 +195,7 @@ 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 +213,38 @@ void pud_populate(struct mm_struct *mm, + */ + 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 +257,55 @@ 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 +314,11 @@ 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 +328,14 @@ 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 +344,7 @@ 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 -urNp linux-3.1.1/arch/x86/mm/setup_nx.c linux-3.1.1/arch/x86/mm/setup_nx.c +--- linux-3.1.1/arch/x86/mm/setup_nx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/setup_nx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/mm/tlb.c linux-3.1.1/arch/x86/mm/tlb.c +--- linux-3.1.1/arch/x86/mm/tlb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/mm/tlb.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/net/bpf_jit_comp.c linux-3.1.1/arch/x86/net/bpf_jit_comp.c +--- linux-3.1.1/arch/x86/net/bpf_jit_comp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/net/bpf_jit_comp.c 2011-11-16 18:39:07.000000000 -0500 +@@ -589,7 +589,9 @@ cond_branch: f_offset = addrs[i + filt + module_free(NULL, image); + return; + } ++ pax_open_kernel(); + memcpy(image + proglen, temp, ilen); ++ pax_close_kernel(); + } + proglen += ilen; + addrs[i] = proglen; +@@ -609,7 +611,7 @@ cond_branch: f_offset = addrs[i + filt + break; + } + if (proglen == oldproglen) { +- image = module_alloc(max_t(unsigned int, ++ image = module_alloc_exec(max_t(unsigned int, + proglen, + sizeof(struct work_struct))); + if (!image) +diff -urNp linux-3.1.1/arch/x86/net/bpf_jit.S linux-3.1.1/arch/x86/net/bpf_jit.S +--- linux-3.1.1/arch/x86/net/bpf_jit.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/net/bpf_jit.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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: + jle bpf_slow_path_word + mov (SKBDATA,%rsi),%eax + bswap %eax /* ntohl() */ ++ pax_force_retaddr + ret + + +@@ -53,6 +55,7 @@ sk_load_half: + jle bpf_slow_path_half + movzwl (SKBDATA,%rsi),%eax + rol $8,%ax # ntohs() ++ pax_force_retaddr + ret + + sk_load_byte_ind: +@@ -66,6 +69,7 @@ sk_load_byte: + cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */ + jle bpf_slow_path_byte + movzbl (SKBDATA,%rsi),%eax ++ pax_force_retaddr + ret + + /** +@@ -82,6 +86,7 @@ ENTRY(sk_load_byte_msh) + movzbl (SKBDATA,%rsi),%ebx + and $15,%bl + shl $2,%bl ++ pax_force_retaddr + ret + CFI_ENDPROC + ENDPROC(sk_load_byte_msh) +@@ -91,6 +96,7 @@ bpf_error: + xor %eax,%eax + mov -8(%rbp),%rbx + leaveq ++ pax_force_retaddr + ret + + /* rsi contains offset and can be scratched */ +@@ -113,6 +119,7 @@ bpf_slow_path_word: + js bpf_error + mov -12(%rbp),%eax + bswap %eax ++ pax_force_retaddr + ret + + bpf_slow_path_half: +@@ -121,12 +128,14 @@ 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: +@@ -137,4 +146,5 @@ bpf_slow_path_byte_msh: + and $15,%al + shl $2,%al + xchg %eax,%ebx ++ pax_force_retaddr + ret +diff -urNp linux-3.1.1/arch/x86/oprofile/backtrace.c linux-3.1.1/arch/x86/oprofile/backtrace.c +--- linux-3.1.1/arch/x86/oprofile/backtrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/oprofile/backtrace.c 2011-11-16 18:39:07.000000000 -0500 +@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_fram + 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_bac + 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 reg + { + 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 -urNp linux-3.1.1/arch/x86/pci/mrst.c linux-3.1.1/arch/x86/pci/mrst.c +--- linux-3.1.1/arch/x86/pci/mrst.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/pci/mrst.c 2011-11-16 18:39:07.000000000 -0500 +@@ -234,7 +234,9 @@ int __init pci_mrst_init(void) + printk(KERN_INFO "Moorestown platform detected, using MRST 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(); + /* Continue with standard init */ + return 1; + } +diff -urNp linux-3.1.1/arch/x86/pci/pcbios.c linux-3.1.1/arch/x86/pci/pcbios.c +--- linux-3.1.1/arch/x86/pci/pcbios.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/pci/pcbios.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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_CPUS; 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 se + + 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 se + : "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 se + *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 se + : "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 se + *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 se + : "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 s + + 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 s + "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 s + "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 s + "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_i + + 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_i + "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_d + { + 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_d + : "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 -urNp linux-3.1.1/arch/x86/platform/efi/efi_32.c linux-3.1.1/arch/x86/platform/efi/efi_32.c +--- linux-3.1.1/arch/x86/platform/efi/efi_32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/platform/efi/efi_32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -38,70 +38,56 @@ + */ + + static unsigned long efi_rt_eflags; +-static pgd_t efi_bak_pg_dir_pointer[2]; ++static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS]; + +-void efi_call_phys_prelog(void) ++void __init efi_call_phys_prelog(void) + { +- unsigned long cr4; +- unsigned long temp; + struct desc_ptr gdt_descr; + +- local_irq_save(efi_rt_eflags); ++#ifdef CONFIG_PAX_KERNEXEC ++ struct desc_struct d; ++#endif + +- /* +- * If I don't have PAE, I should just duplicate two entries in page +- * directory. If I have PAE, I just need to duplicate one entry in +- * page directory. +- */ +- cr4 = read_cr4_safe(); ++ local_irq_save(efi_rt_eflags); + +- if (cr4 & X86_CR4_PAE) { +- efi_bak_pg_dir_pointer[0].pgd = +- swapper_pg_dir[pgd_index(0)].pgd; +- swapper_pg_dir[0].pgd = +- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; +- } else { +- efi_bak_pg_dir_pointer[0].pgd = +- swapper_pg_dir[pgd_index(0)].pgd; +- efi_bak_pg_dir_pointer[1].pgd = +- swapper_pg_dir[pgd_index(0x400000)].pgd; +- swapper_pg_dir[pgd_index(0)].pgd = +- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; +- temp = PAGE_OFFSET + 0x400000; +- swapper_pg_dir[pgd_index(0x400000)].pgd = +- swapper_pg_dir[pgd_index(temp)].pgd; +- } ++ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS); ++ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, ++ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); + + /* + * After the lock is released, the original page table is restored. + */ + __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); + } + +-void efi_call_phys_epilog(void) ++void __init efi_call_phys_epilog(void) + { +- unsigned long cr4; + 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); + +- cr4 = read_cr4_safe(); +- +- if (cr4 & X86_CR4_PAE) { +- swapper_pg_dir[pgd_index(0)].pgd = +- efi_bak_pg_dir_pointer[0].pgd; +- } else { +- swapper_pg_dir[pgd_index(0)].pgd = +- efi_bak_pg_dir_pointer[0].pgd; +- swapper_pg_dir[pgd_index(0x400000)].pgd = +- efi_bak_pg_dir_pointer[1].pgd; +- } ++ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS); + + /* + * After the lock is released, the original page table is restored. +diff -urNp linux-3.1.1/arch/x86/platform/efi/efi_stub_32.S linux-3.1.1/arch/x86/platform/efi/efi_stub_32.S +--- linux-3.1.1/arch/x86/platform/efi/efi_stub_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/platform/efi/efi_stub_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/platform/efi/efi_stub_64.S linux-3.1.1/arch/x86/platform/efi/efi_stub_64.S +--- linux-3.1.1/arch/x86/platform/efi/efi_stub_64.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/platform/efi/efi_stub_64.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + ret + ENDPROC(efi_call0) + +@@ -50,6 +52,7 @@ ENTRY(efi_call1) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call1) + +@@ -60,6 +63,7 @@ ENTRY(efi_call2) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call2) + +@@ -71,6 +75,7 @@ ENTRY(efi_call3) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call3) + +@@ -83,6 +88,7 @@ ENTRY(efi_call4) + call *%rdi + addq $32, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call4) + +@@ -96,6 +102,7 @@ ENTRY(efi_call5) + call *%rdi + addq $48, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call5) + +@@ -112,5 +119,6 @@ ENTRY(efi_call6) + call *%rdi + addq $48, %rsp + RESTORE_XMM ++ pax_force_retaddr + ret + ENDPROC(efi_call6) +diff -urNp linux-3.1.1/arch/x86/platform/mrst/mrst.c linux-3.1.1/arch/x86/platform/mrst/mrst.c +--- linux-3.1.1/arch/x86/platform/mrst/mrst.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/platform/mrst/mrst.c 2011-11-16 18:39:07.000000000 -0500 +@@ -239,14 +239,16 @@ static int mrst_i8042_detect(void) + } + + /* Reboot and power off are handled by the SCU on a MID device */ +-static void mrst_power_off(void) ++static __noreturn void mrst_power_off(void) + { + intel_scu_ipc_simple_command(0xf1, 1); ++ BUG(); + } + +-static void mrst_reboot(void) ++static __noreturn void mrst_reboot(void) + { + intel_scu_ipc_simple_command(0xf1, 0); ++ BUG(); + } + + /* +diff -urNp linux-3.1.1/arch/x86/platform/uv/tlb_uv.c linux-3.1.1/arch/x86/platform/uv/tlb_uv.c +--- linux-3.1.1/arch/x86/platform/uv/tlb_uv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/platform/uv/tlb_uv.c 2011-11-16 19:39:11.000000000 -0500 +@@ -377,6 +377,8 @@ static void reset_with_ipi(struct pnmask + struct bau_control *smaster = bcp->socket_master; + struct reset_args reset_args; + ++ pax_track_stack(); ++ + reset_args.sender = sender; + cpus_clear(*mask); + /* find a single cpu for each uvhub in this distribution mask */ +diff -urNp linux-3.1.1/arch/x86/power/cpu.c linux-3.1.1/arch/x86/power/cpu.c +--- linux-3.1.1/arch/x86/power/cpu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/power/cpu.c 2011-11-16 18:39:07.000000000 -0500 +@@ -130,7 +130,7 @@ 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 +@@ -140,7 +140,9 @@ 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 -urNp linux-3.1.1/arch/x86/vdso/Makefile linux-3.1.1/arch/x86/vdso/Makefile +--- linux-3.1.1/arch/x86/vdso/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/vdso/Makefile 2011-11-16 18:39:07.000000000 -0500 +@@ -137,7 +137,7 @@ 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 -urNp linux-3.1.1/arch/x86/vdso/vdso32-setup.c linux-3.1.1/arch/x86/vdso/vdso32-setup.c +--- linux-3.1.1/arch/x86/vdso/vdso32-setup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/vdso/vdso32-setup.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 m + 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); + /* + * Make sure the vDSO gets into every core dump. + * Dumping its contents makes post-mortem fully interpretable later +@@ -331,14 +332,14 @@ int arch_setup_additional_pages(struct l + 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) { + /* +@@ -361,11 +362,11 @@ int arch_setup_additional_pages(struct l + } + + 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); + +@@ -412,8 +413,14 @@ __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; + } + +@@ -423,7 +430,7 @@ struct vm_area_struct *get_gate_vma(stru + * 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 -urNp linux-3.1.1/arch/x86/vdso/vma.c linux-3.1.1/arch/x86/vdso/vma.c +--- linux-3.1.1/arch/x86/vdso/vma.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/vdso/vma.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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; + +@@ -97,13 +95,15 @@ static unsigned long vdso_addr(unsigned + int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) + { + 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, vdso_size); + addr = get_unmapped_area(NULL, addr, vdso_size, 0, 0); + if (IS_ERR_VALUE(addr)) { +@@ -111,26 +111,18 @@ int arch_setup_additional_pages(struct l + goto up_fail; + } + +- current->mm->context.vdso = (void *)addr; ++ mm->context.vdso = addr; + + ret = install_special_mapping(mm, addr, vdso_size, + VM_READ|VM_EXEC| + VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| + VM_ALWAYSDUMP, + vdso_pages); +- if (ret) { +- current->mm->context.vdso = NULL; +- goto up_fail; +- } ++ ++ if (ret) ++ mm->context.vdso = 0; + + up_fail: + up_write(&mm->mmap_sem); + return ret; + } +- +-static __init int vdso_setup(char *s) +-{ +- vdso_enabled = simple_strtoul(s, NULL, 0); +- return 0; +-} +-__setup("vdso=", vdso_setup); +diff -urNp linux-3.1.1/arch/x86/xen/enlighten.c linux-3.1.1/arch/x86/xen/enlighten.c +--- linux-3.1.1/arch/x86/xen/enlighten.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/enlighten.c 2011-11-16 18:39:07.000000000 -0500 +@@ -85,8 +85,6 @@ 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); +@@ -1028,7 +1026,7 @@ static const struct pv_apic_ops xen_apic + #endif + }; + +-static void xen_reboot(int reason) ++static __noreturn void xen_reboot(int reason) + { + struct sched_shutdown r = { .reason = reason }; + +@@ -1036,17 +1034,17 @@ static void xen_reboot(int reason) + 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); + } +@@ -1152,7 +1150,17 @@ asmlinkage void __init xen_start_kernel( + __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(); + +@@ -1183,13 +1191,6 @@ asmlinkage void __init xen_start_kernel( + + 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 -urNp linux-3.1.1/arch/x86/xen/mmu.c linux-3.1.1/arch/x86/xen/mmu.c +--- linux-3.1.1/arch/x86/xen/mmu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/mmu.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1768,6 +1768,8 @@ pgd_t * __init xen_setup_kernel_pagetabl + convert_pfn_mfn(init_level4_pgt); + convert_pfn_mfn(level3_ident_pgt); + convert_pfn_mfn(level3_kernel_pgt); ++ convert_pfn_mfn(level3_vmalloc_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); +@@ -1786,7 +1788,10 @@ pgd_t * __init xen_setup_kernel_pagetabl + 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_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); + +@@ -2000,6 +2005,7 @@ static void __init xen_post_allocator_in + 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 +@@ -2081,6 +2087,7 @@ static const struct pv_mmu_ops xen_mmu_o + .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 -urNp linux-3.1.1/arch/x86/xen/smp.c linux-3.1.1/arch/x86/xen/smp.c +--- linux-3.1.1/arch/x86/xen/smp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/smp.c 2011-11-16 18:39:07.000000000 -0500 +@@ -194,11 +194,6 @@ static void __init xen_smp_prepare_boot_ + { + 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(); + } +@@ -275,12 +270,12 @@ cpu_initialize_context(unsigned int cpu, + 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 +@@ -331,13 +326,12 @@ static int __cpuinit xen_cpu_up(unsigned + 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 -urNp linux-3.1.1/arch/x86/xen/xen-asm_32.S linux-3.1.1/arch/x86/xen/xen-asm_32.S +--- linux-3.1.1/arch/x86/xen/xen-asm_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/xen-asm_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/xen/xen-head.S linux-3.1.1/arch/x86/xen/xen-head.S +--- linux-3.1.1/arch/x86/xen/xen-head.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/xen-head.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/arch/x86/xen/xen-ops.h linux-3.1.1/arch/x86/xen/xen-ops.h +--- linux-3.1.1/arch/x86/xen/xen-ops.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/arch/x86/xen/xen-ops.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/block/blk-iopoll.c linux-3.1.1/block/blk-iopoll.c +--- linux-3.1.1/block/blk-iopoll.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/blk-iopoll.c 2011-11-16 18:39:07.000000000 -0500 +@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopo + } + 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 -urNp linux-3.1.1/block/blk-map.c linux-3.1.1/block/blk-map.c +--- linux-3.1.1/block/blk-map.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/blk-map.c 2011-11-16 18:39:07.000000000 -0500 +@@ -301,7 +301,7 @@ int blk_rq_map_kern(struct request_queue + 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 -urNp linux-3.1.1/block/blk-softirq.c linux-3.1.1/block/blk-softirq.c +--- linux-3.1.1/block/blk-softirq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/blk-softirq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -17,7 +17,7 @@ static DEFINE_PER_CPU(struct list_head, + * 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 -urNp linux-3.1.1/block/bsg.c linux-3.1.1/block/bsg.c +--- linux-3.1.1/block/bsg.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/bsg.c 2011-11-16 18:39:07.000000000 -0500 +@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct r + 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 -urNp linux-3.1.1/block/compat_ioctl.c linux-3.1.1/block/compat_ioctl.c +--- linux-3.1.1/block/compat_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/compat_ioctl.c 2011-11-16 18:39:07.000000000 -0500 +@@ -340,7 +340,7 @@ static int compat_fd_ioctl(struct block_ + 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 -urNp linux-3.1.1/block/scsi_ioctl.c linux-3.1.1/block/scsi_ioctl.c +--- linux-3.1.1/block/scsi_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/block/scsi_ioctl.c 2011-11-16 18:39:07.000000000 -0500 +@@ -222,8 +222,20 @@ 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; + +@@ -432,6 +444,8 @@ int sg_scsi_ioctl(struct request_queue * + 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; +@@ -465,9 +479,18 @@ int sg_scsi_ioctl(struct request_queue * + */ + 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 -urNp linux-3.1.1/crypto/cryptd.c linux-3.1.1/crypto/cryptd.c +--- linux-3.1.1/crypto/cryptd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/crypto/cryptd.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/crypto/serpent.c linux-3.1.1/crypto/serpent.c +--- linux-3.1.1/crypto/serpent.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/crypto/serpent.c 2011-11-16 18:40:10.000000000 -0500 +@@ -224,6 +224,8 @@ static int serpent_setkey(struct crypto_ + u32 r0,r1,r2,r3,r4; + int i; + ++ pax_track_stack(); ++ + /* Copy key, add padding */ + + for (i = 0; i < keylen; ++i) +diff -urNp linux-3.1.1/Documentation/dontdiff linux-3.1.1/Documentation/dontdiff +--- linux-3.1.1/Documentation/dontdiff 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/Documentation/dontdiff 2011-11-16 18:39:07.000000000 -0500 +@@ -5,6 +5,7 @@ + *.cis + *.cpio + *.csp ++*.dbg + *.dsp + *.dvi + *.elf +@@ -48,9 +49,11 @@ + *.tab.h + *.tex + *.ver ++*.vim + *.xml + *.xz + *_MODULES ++*_reg_safe.h + *_vga16.c + *~ + \#*# +@@ -70,6 +73,7 @@ Kerntypes + Module.markers + Module.symvers + PENDING ++PERF* + SCCS + System.map* + TAGS +@@ -93,19 +97,24 @@ 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 +@@ -119,6 +128,7 @@ dslm + elf2ecoff + elfconfig.h* + evergreen_reg_safe.h ++exception_policy.conf + fixdep + flask.h + fore200e_mkfirm +@@ -126,12 +136,14 @@ 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 + hpet_example + hugepage-mmap + hugepage-shm +@@ -146,7 +158,7 @@ int32.c + int4.c + int8.c + kallsyms +-kconfig ++kern_constants.h + keywords.c + ksym.c* + ksym.h* +@@ -154,7 +166,6 @@ kxgettext + lkc_defs.h + lex.c + lex.*.c +-linux + logo_*.c + logo_*_clut224.c + logo_*_mono.c +@@ -166,7 +177,6 @@ machtypes.h + map + map_hugetlb + maui_boot.h +-media + mconf + miboot* + mk_elfconfig +@@ -174,6 +184,7 @@ mkboot + mkbugboot + mkcpustr + mkdep ++mkpiggy + mkprep + mkregtable + mktables +@@ -209,6 +220,7 @@ r300_reg_safe.h + r420_reg_safe.h + r600_reg_safe.h + recordmcount ++regdb.c + relocs + rlim_names.h + rn50_reg_safe.h +@@ -219,6 +231,7 @@ setup + setup.bin + setup.elf + sImage ++slabinfo + sm_tbl* + split-include + syscalltab.h +@@ -229,6 +242,7 @@ tftpboot.img + timeconst.h + times.h* + trix_boot.h ++user_constants.h + utsrelease.h* + vdso-syms.lds + vdso.lds +@@ -246,7 +260,9 @@ vmlinux + vmlinux-* + vmlinux.aout + vmlinux.bin.all ++vmlinux.bin.bz2 + vmlinux.lds ++vmlinux.relocs + vmlinuz + voffset.h + vsyscall.lds +@@ -254,9 +270,11 @@ 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 -urNp linux-3.1.1/Documentation/kernel-parameters.txt linux-3.1.1/Documentation/kernel-parameters.txt +--- linux-3.1.1/Documentation/kernel-parameters.txt 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/Documentation/kernel-parameters.txt 2011-11-16 18:39:07.000000000 -0500 +@@ -1898,6 +1898,13 @@ bytes respectively. Such letter suffixes + 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 -urNp linux-3.1.1/drivers/acpi/apei/cper.c linux-3.1.1/drivers/acpi/apei/cper.c +--- linux-3.1.1/drivers/acpi/apei/cper.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/acpi/apei/cper.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/acpi/ec_sys.c linux-3.1.1/drivers/acpi/ec_sys.c +--- linux-3.1.1/drivers/acpi/ec_sys.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/acpi/ec_sys.c 2011-11-16 18:39:07.000000000 -0500 +@@ -11,6 +11,7 @@ + #include <linux/kernel.h> + #include <linux/acpi.h> + #include <linux/debugfs.h> ++#include <asm/uaccess.h> + #include "internal.h" + + MODULE_AUTHOR("Thomas Renninger <trenn(a)suse.de>"); +@@ -39,7 +40,7 @@ static ssize_t acpi_ec_read_io(struct fi + * 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; + +@@ -52,9 +53,11 @@ static ssize_t acpi_ec_read_io(struct fi + 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--; + } +@@ -70,7 +73,6 @@ static ssize_t acpi_ec_write_io(struct f + + unsigned int size = count; + loff_t init_off = *off; +- u8 *data = (u8 *) buf; + int err = 0; + + if (*off >= EC_SPACE_SIZE) +@@ -81,7 +83,9 @@ static ssize_t acpi_ec_write_io(struct f + } + + 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 -urNp linux-3.1.1/drivers/acpi/proc.c linux-3.1.1/drivers/acpi/proc.c +--- linux-3.1.1/drivers/acpi/proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/acpi/proc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -342,19 +342,13 @@ acpi_system_write_wakeup_device(struct f + size_t count, loff_t * ppos) + { + struct list_head *node, *next; +- char strbuf[5]; +- char str[5] = ""; +- unsigned int len = count; +- +- if (len > 4) +- len = 4; +- if (len < 0) +- return -EFAULT; ++ char strbuf[5] = {0}; + +- if (copy_from_user(strbuf, buffer, len)) ++ if (count > 4) ++ count = 4; ++ if (copy_from_user(strbuf, buffer, count)) + 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) { +@@ -363,7 +357,7 @@ acpi_system_write_wakeup_device(struct f + 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 -urNp linux-3.1.1/drivers/acpi/processor_driver.c linux-3.1.1/drivers/acpi/processor_driver.c +--- linux-3.1.1/drivers/acpi/processor_driver.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/acpi/processor_driver.c 2011-11-16 18:39:07.000000000 -0500 +@@ -473,7 +473,7 @@ static int __cpuinit acpi_processor_add( + return 0; + #endif + +- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); ++ BUG_ON(pr->id >= nr_cpu_ids); + + /* + * Buggy BIOS check +diff -urNp linux-3.1.1/drivers/ata/libata-core.c linux-3.1.1/drivers/ata/libata-core.c +--- linux-3.1.1/drivers/ata/libata-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ata/libata-core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -4733,7 +4733,7 @@ void ata_qc_free(struct ata_queued_cmd * + 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; +@@ -4749,7 +4749,7 @@ void __ata_qc_complete(struct ata_queued + 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; +@@ -5754,6 +5754,7 @@ static void ata_finalize_port_ops(struct + return; + + spin_lock(&lock); ++ pax_open_kernel(); + + for (cur = ops->inherits; cur; cur = cur->inherits) { + void **inherit = (void **)cur; +@@ -5767,8 +5768,9 @@ static void ata_finalize_port_ops(struct + if (IS_ERR(*pp)) + *pp = NULL; + +- ops->inherits = NULL; ++ *(struct ata_port_operations **)&ops->inherits = NULL; + ++ pax_close_kernel(); + spin_unlock(&lock); + } + +diff -urNp linux-3.1.1/drivers/ata/libata-eh.c linux-3.1.1/drivers/ata/libata-eh.c +--- linux-3.1.1/drivers/ata/libata-eh.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ata/libata-eh.c 2011-11-16 18:40:10.000000000 -0500 +@@ -2515,6 +2515,8 @@ void ata_eh_report(struct ata_port *ap) + { + struct ata_link *link; + ++ pax_track_stack(); ++ + ata_for_each_link(link, ap, HOST_FIRST) + ata_eh_link_report(link); + } +diff -urNp linux-3.1.1/drivers/ata/pata_arasan_cf.c linux-3.1.1/drivers/ata/pata_arasan_cf.c +--- linux-3.1.1/drivers/ata/pata_arasan_cf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ata/pata_arasan_cf.c 2011-11-16 18:39:07.000000000 -0500 +@@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(str + /* 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 -urNp linux-3.1.1/drivers/atm/adummy.c linux-3.1.1/drivers/atm/adummy.c +--- linux-3.1.1/drivers/atm/adummy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/adummy.c 2011-11-16 18:39:07.000000000 -0500 +@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct + vcc->pop(vcc, skb); + else + dev_kfree_skb_any(skb); +- atomic_inc(&vcc->stats->tx); ++ atomic_inc_unchecked(&vcc->stats->tx); + + return 0; + } +diff -urNp linux-3.1.1/drivers/atm/ambassador.c linux-3.1.1/drivers/atm/ambassador.c +--- linux-3.1.1/drivers/atm/ambassador.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/ambassador.c 2011-11-16 18:39:07.000000000 -0500 +@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, + 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, + 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, + } 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 * at + } + + 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 -urNp linux-3.1.1/drivers/atm/atmtcp.c linux-3.1.1/drivers/atm/atmtcp.c +--- linux-3.1.1/drivers/atm/atmtcp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/atmtcp.c 2011-11-16 18:39:07.000000000 -0500 +@@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc + 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 + 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 + 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 + 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 + __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 -urNp linux-3.1.1/drivers/atm/eni.c linux-3.1.1/drivers/atm/eni.c +--- linux-3.1.1/drivers/atm/eni.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/eni.c 2011-11-16 18:39:07.000000000 -0500 +@@ -526,7 +526,7 @@ 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 */ +@@ -581,7 +581,7 @@ 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); +@@ -598,7 +598,7 @@ 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; +@@ -771,7 +771,7 @@ rx_dequeued++; + vcc->push(vcc,skb); + pushed++; + } +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + wake_up(&eni_dev->rx_wait); + } +@@ -1228,7 +1228,7 @@ static void dequeue_tx(struct atm_dev *d + 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++; + } +@@ -1568,7 +1568,7 @@ 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 -urNp linux-3.1.1/drivers/atm/firestream.c linux-3.1.1/drivers/atm/firestream.c +--- linux-3.1.1/drivers/atm/firestream.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/firestream.c 2011-11-16 18:39:07.000000000 -0500 +@@ -750,7 +750,7 @@ static void process_txdone_queue (struct + } + } + +- 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); +@@ -817,7 +817,7 @@ static void process_incoming (struct fs_ + #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); +@@ -838,12 +838,12 @@ static void process_incoming (struct fs_ + 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 -urNp linux-3.1.1/drivers/atm/fore200e.c linux-3.1.1/drivers/atm/fore200e.c +--- linux-3.1.1/drivers/atm/fore200e.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/fore200e.c 2011-11-16 18:39:07.000000000 -0500 +@@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200 + #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* fore2 + 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* fore2 + + 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* fore200 + 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, struc + 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 -urNp linux-3.1.1/drivers/atm/he.c linux-3.1.1/drivers/atm/he.c +--- linux-3.1.1/drivers/atm/he.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/he.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, i + + 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, i + 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, i + 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, str + 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_b + 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_b + 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_b + 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_b + 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_b + __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 -urNp linux-3.1.1/drivers/atm/horizon.c linux-3.1.1/drivers/atm/horizon.c +--- linux-3.1.1/drivers/atm/horizon.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/horizon.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1035,7 +1035,7 @@ static void rx_schedule (hrz_dev * dev, + { + 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); +@@ -1187,7 +1187,7 @@ static void tx_schedule (hrz_dev * const + 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 -urNp linux-3.1.1/drivers/atm/idt77252.c linux-3.1.1/drivers/atm/idt77252.c +--- linux-3.1.1/drivers/atm/idt77252.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/idt77252.c 2011-11-16 18:39:07.000000000 -0500 +@@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, str + 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, st + 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, st + 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, st + "(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, st + 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, st + __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, st + __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 *car + 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 *car + 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, s + + 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, s + 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, s + + 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, v + 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 -urNp linux-3.1.1/drivers/atm/iphase.c linux-3.1.1/drivers/atm/iphase.c +--- linux-3.1.1/drivers/atm/iphase.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/iphase.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1121,7 +1121,7 @@ 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");) +@@ -1144,7 +1144,7 @@ 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; + } + +@@ -1294,7 +1294,7 @@ static void rx_dle_intr(struct atm_dev * + ia_vcc = INPH_IA_VCC(vcc); + if (ia_vcc == NULL) + { +- atomic_inc(&vcc->stats->rx_err); ++ atomic_inc_unchecked(&vcc->stats->rx_err); + dev_kfree_skb_any(skb); + atm_return(vcc, atm_guess_pdu2truesize(len)); + goto INCR_DLE; +@@ -1306,7 +1306,7 @@ static void rx_dle_intr(struct atm_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);) + dev_kfree_skb_any(skb); +@@ -1322,7 +1322,7 @@ static void rx_dle_intr(struct atm_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: +@@ -2802,15 +2802,15 @@ static int ia_ioctl(struct atm_dev *dev, + { + 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; +@@ -2915,7 +2915,7 @@ static int ia_pkt_tx (struct atm_vcc *vc + 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 +@@ -3020,14 +3020,14 @@ static int ia_pkt_tx (struct atm_vcc *vc + 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 -urNp linux-3.1.1/drivers/atm/lanai.c linux-3.1.1/drivers/atm/lanai.c +--- linux-3.1.1/drivers/atm/lanai.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/lanai.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct l + 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 + 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); +@@ -1668,7 +1668,7 @@ static int handle_service(struct lanai_d + 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)))) { +@@ -1680,7 +1680,7 @@ static int handle_service(struct lanai_d + 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) - +@@ -1692,7 +1692,7 @@ static int handle_service(struct lanai_d + } + 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); +@@ -1700,7 +1700,7 @@ static int handle_service(struct lanai_d + 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 -urNp linux-3.1.1/drivers/atm/nicstar.c linux-3.1.1/drivers/atm/nicstar.c +--- linux-3.1.1/drivers/atm/nicstar.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/nicstar.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, + 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, + 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, + 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, + } + + 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 + 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 + 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 + 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 + 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 + ("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 + ("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 + 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 + /* 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 + 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 + 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 + 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 + + 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 + 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 + 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 + 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 + #endif /* NS_USE_DESTRUCTORS */ + __net_timestamp(hb); + vcc->push(vcc, hb); +- atomic_inc(&vcc->stats->rx); ++ atomic_inc_unchecked(&vcc->stats->rx); + } + } + +diff -urNp linux-3.1.1/drivers/atm/solos-pci.c linux-3.1.1/drivers/atm/solos-pci.c +--- linux-3.1.1/drivers/atm/solos-pci.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/solos-pci.c 2011-11-16 18:40:10.000000000 -0500 +@@ -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: +@@ -899,6 +899,8 @@ static int print_buffer(struct sk_buff * + char msg[500]; + char item[10]; + ++ pax_track_stack(); ++ + len = buf->len; + for (i = 0; i < len; i++){ + if(i % 8 == 0) +@@ -1008,7 +1010,7 @@ static uint32_t fpga_tx(struct solos_car + 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 -urNp linux-3.1.1/drivers/atm/suni.c linux-3.1.1/drivers/atm/suni.c +--- linux-3.1.1/drivers/atm/suni.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/suni.c 2011-11-16 18:39:07.000000000 -0500 +@@ -50,8 +50,8 @@ 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 -urNp linux-3.1.1/drivers/atm/uPD98402.c linux-3.1.1/drivers/atm/uPD98402.c +--- linux-3.1.1/drivers/atm/uPD98402.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/uPD98402.c 2011-11-16 18:39:07.000000000 -0500 +@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *d + 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 + + + #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 + 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 + 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 -urNp linux-3.1.1/drivers/atm/zatm.c linux-3.1.1/drivers/atm/zatm.c +--- linux-3.1.1/drivers/atm/zatm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/atm/zatm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -460,7 +460,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy + } + 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)) { +@@ -470,7 +470,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy + 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 */ +@@ -734,7 +734,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD + 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 -urNp linux-3.1.1/drivers/base/devtmpfs.c linux-3.1.1/drivers/base/devtmpfs.c +--- linux-3.1.1/drivers/base/devtmpfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/base/devtmpfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/base/power/wakeup.c linux-3.1.1/drivers/base/power/wakeup.c +--- linux-3.1.1/drivers/base/power/wakeup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/base/power/wakeup.c 2011-11-16 18:39:07.000000000 -0500 +@@ -29,14 +29,14 @@ 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; +@@ -350,7 +350,7 @@ static void wakeup_source_activate(struc + ws->last_time = ktime_get(); + + /* Increment the counter of events in progress. */ +- atomic_inc(&combined_event_count); ++ atomic_inc_unchecked(&combined_event_count); + } + + /** +@@ -440,7 +440,7 @@ static void wakeup_source_deactivate(str + * 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 -urNp linux-3.1.1/drivers/block/cciss.c linux-3.1.1/drivers/block/cciss.c +--- linux-3.1.1/drivers/block/cciss.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/cciss.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1179,6 +1179,8 @@ static int cciss_ioctl32_passthru(struct + int err; + u32 cp; + ++ memset(&arg64, 0, sizeof(arg64)); ++ + err = 0; + err |= + copy_from_user(&arg64.LUN_info, &arg32->LUN_info, +@@ -2986,7 +2988,7 @@ 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; + } +@@ -2996,7 +2998,7 @@ 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); +@@ -3422,17 +3424,17 @@ 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)); + } + +@@ -3465,7 +3467,7 @@ static inline u32 next_command(ctlr_info + 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 */ +@@ -4020,7 +4022,7 @@ static void __devinit cciss_put_controll + 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; +@@ -4292,7 +4294,7 @@ static int __devinit cciss_pci_init(ctlr + 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"); +@@ -5009,7 +5011,7 @@ 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; +@@ -5061,7 +5063,7 @@ 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[PERF_MODE_INT], h); + rc = cciss_request_irq(h, cciss_msix_discard_completions, +@@ -5081,9 +5083,9 @@ 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) +@@ -5106,7 +5108,7 @@ 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); +@@ -5178,7 +5180,7 @@ static void cciss_shutdown(struct pci_de + 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[PERF_MODE_INT], h); + } + +diff -urNp linux-3.1.1/drivers/block/cciss.h linux-3.1.1/drivers/block/cciss.h +--- linux-3.1.1/drivers/block/cciss.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/cciss.h 2011-11-16 18:39:07.000000000 -0500 +@@ -100,7 +100,7 @@ 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 -urNp linux-3.1.1/drivers/block/cpqarray.c linux-3.1.1/drivers/block/cpqarray.c +--- linux-3.1.1/drivers/block/cpqarray.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/cpqarray.c 2011-11-16 18:40:10.000000000 -0500 +@@ -404,7 +404,7 @@ static int __devinit cpqarray_register_c + 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_c + 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_detec + 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 */ +@@ -911,6 +911,8 @@ static void do_ida_request(struct reques + struct scatterlist tmp_sg[SG_MAX]; + int i, dir, seg; + ++ pax_track_stack(); ++ + queue_next: + creq = blk_peek_request(q); + if (!creq) +@@ -980,7 +982,7 @@ 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 +990,7 @@ 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 +1052,7 @@ static irqreturn_t do_ida_intr(int irq, + 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 +1063,7 @@ static irqreturn_t do_ida_intr(int irq, + */ + 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 +1451,11 @@ 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 +1468,7 @@ 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 +1551,9 @@ static int revalidate_allvol(ctlr_info_t + * 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 +1593,7 @@ 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 -urNp linux-3.1.1/drivers/block/cpqarray.h linux-3.1.1/drivers/block/cpqarray.h +--- linux-3.1.1/drivers/block/cpqarray.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/cpqarray.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/block/DAC960.c linux-3.1.1/drivers/block/DAC960.c +--- linux-3.1.1/drivers/block/DAC960.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/DAC960.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1980,6 +1980,8 @@ static bool DAC960_V1_ReadDeviceConfigur + unsigned long flags; + int Channel, TargetID; + ++ pax_track_stack(); ++ + if (!init_dma_loaf(Controller->PCIDevice, &local_dma, + DAC960_V1_MaxChannels*(sizeof(DAC960_V1_DCDB_T) + + sizeof(DAC960_SCSI_Inquiry_T) + +diff -urNp linux-3.1.1/drivers/block/drbd/drbd_int.h linux-3.1.1/drivers/block/drbd/drbd_int.h +--- linux-3.1.1/drivers/block/drbd/drbd_int.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/drbd/drbd_int.h 2011-11-16 18:39:07.000000000 -0500 +@@ -737,7 +737,7 @@ 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; + }; +@@ -1109,7 +1109,7 @@ 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; +@@ -1618,30 +1618,30 @@ static inline int drbd_setsockopt(struct + + 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 -urNp linux-3.1.1/drivers/block/drbd/drbd_main.c linux-3.1.1/drivers/block/drbd/drbd_main.c +--- linux-3.1.1/drivers/block/drbd/drbd_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/drbd/drbd_main.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2397,7 +2397,7 @@ static int _drbd_send_ack(struct drbd_co + 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 *m + 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_ + 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->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 -urNp linux-3.1.1/drivers/block/drbd/drbd_nl.c linux-3.1.1/drivers/block/drbd/drbd_nl.c +--- linux-3.1.1/drivers/block/drbd/drbd_nl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/drbd/drbd_nl.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2359,7 +2359,7 @@ static void drbd_connector_callback(stru + 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 * + 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_co + 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 *mde + 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 drb + 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 -urNp linux-3.1.1/drivers/block/drbd/drbd_receiver.c linux-3.1.1/drivers/block/drbd/drbd_receiver.c +--- linux-3.1.1/drivers/block/drbd/drbd_receiver.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/drbd/drbd_receiver.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + 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 + 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_c + 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_c + } + + 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 + 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 + + 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_ + 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 -urNp linux-3.1.1/drivers/block/loop.c linux-3.1.1/drivers/block/loop.c +--- linux-3.1.1/drivers/block/loop.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/loop.c 2011-11-16 18:39:07.000000000 -0500 +@@ -283,7 +283,7 @@ static int __do_lo_send_write(struct fil + 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 -urNp linux-3.1.1/drivers/block/nbd.c linux-3.1.1/drivers/block/nbd.c +--- linux-3.1.1/drivers/block/nbd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/block/nbd.c 2011-11-16 18:40:10.000000000 -0500 +@@ -157,6 +157,8 @@ static int sock_xmit(struct nbd_device * + struct kvec iov; + sigset_t blocked, oldset; + ++ pax_track_stack(); ++ + if (unlikely(!sock)) { + printk(KERN_ERR "%s: Attempted %s on closed socket in sock_xmit\n", + lo->disk->disk_name, (send ? "send" : "recv")); +@@ -572,6 +574,8 @@ static void do_nbd_request(struct reques + static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, + unsigned int cmd, unsigned long arg) + { ++ pax_track_stack(); ++ + switch (cmd) { + case NBD_DISCONNECT: { + struct request sreq; +diff -urNp linux-3.1.1/drivers/char/agp/frontend.c linux-3.1.1/drivers/char/agp/frontend.c +--- linux-3.1.1/drivers/char/agp/frontend.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/agp/frontend.c 2011-11-16 18:39:07.000000000 -0500 +@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct ag + 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 -urNp linux-3.1.1/drivers/char/briq_panel.c linux-3.1.1/drivers/char/briq_panel.c +--- linux-3.1.1/drivers/char/briq_panel.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/briq_panel.c 2011-11-16 18:40:10.000000000 -0500 +@@ -9,6 +9,7 @@ + #include <linux/types.h> + #include <linux/errno.h> + #include <linux/tty.h> ++#include <linux/mutex.h> + #include <linux/timer.h> + #include <linux/kernel.h> + #include <linux/wait.h> +@@ -34,6 +35,7 @@ static int vfd_is_open; + static unsigned char vfd[40]; + static int vfd_cursor; + static unsigned char ledpb, led; ++static DEFINE_MUTEX(vfd_mutex); + + static void update_vfd(void) + { +@@ -140,12 +142,15 @@ static ssize_t briq_panel_write(struct f + if (!vfd_is_open) + return -EBUSY; + ++ mutex_lock(&vfd_mutex); + for (;;) { + char c; + if (!indx) + break; +- if (get_user(c, buf)) ++ if (get_user(c, buf)) { ++ mutex_unlock(&vfd_mutex); + return -EFAULT; ++ } + if (esc) { + set_led(c); + esc = 0; +@@ -175,6 +180,7 @@ static ssize_t briq_panel_write(struct f + buf++; + } + update_vfd(); ++ mutex_unlock(&vfd_mutex); + + return len; + } +diff -urNp linux-3.1.1/drivers/char/genrtc.c linux-3.1.1/drivers/char/genrtc.c +--- linux-3.1.1/drivers/char/genrtc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/genrtc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *fi + switch (cmd) { + + case RTC_PLL_GET: ++ memset(&pll, 0, sizeof(pll)); + if (get_rtc_pll(&pll)) + return -EINVAL; + else +diff -urNp linux-3.1.1/drivers/char/hpet.c linux-3.1.1/drivers/char/hpet.c +--- linux-3.1.1/drivers/char/hpet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/hpet.c 2011-11-16 18:39:07.000000000 -0500 +@@ -572,7 +572,7 @@ static inline unsigned long hpet_time_di + } + + 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 -urNp linux-3.1.1/drivers/char/ipmi/ipmi_msghandler.c linux-3.1.1/drivers/char/ipmi/ipmi_msghandler.c +--- linux-3.1.1/drivers/char/ipmi/ipmi_msghandler.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/ipmi/ipmi_msghandler.c 2011-11-16 18:40:10.000000000 -0500 +@@ -415,7 +415,7 @@ 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 +@@ -448,9 +448,9 @@ 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) + { +@@ -2868,7 +2868,7 @@ int ipmi_register_smi(struct ipmi_smi_ha + 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; + +@@ -4220,6 +4220,8 @@ static void send_panic_events(char *str) + struct ipmi_smi_msg smi_msg; + struct ipmi_recv_msg recv_msg; + ++ pax_track_stack(); ++ + si = (struct ipmi_system_interface_addr *) &addr; + si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; + si->channel = IPMI_BMC_CHANNEL; +diff -urNp linux-3.1.1/drivers/char/ipmi/ipmi_si_intf.c linux-3.1.1/drivers/char/ipmi/ipmi_si_intf.c +--- linux-3.1.1/drivers/char/ipmi/ipmi_si_intf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/ipmi/ipmi_si_intf.c 2011-11-16 18:39:07.000000000 -0500 +@@ -277,7 +277,7 @@ 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; + +@@ -286,9 +286,9 @@ 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 + +@@ -3230,7 +3230,7 @@ static int try_smi_init(struct smi_info + 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 -urNp linux-3.1.1/drivers/char/Kconfig linux-3.1.1/drivers/char/Kconfig +--- linux-3.1.1/drivers/char/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/Kconfig 2011-11-16 18:40:10.000000000 -0500 +@@ -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 +@@ -596,6 +597,7 @@ config DEVPORT + bool + depends on !M68K + depends on ISA || PCI ++ depends on !GRKERNSEC_KMEM + default y + + source "drivers/s390/char/Kconfig" +diff -urNp linux-3.1.1/drivers/char/mbcs.c linux-3.1.1/drivers/char/mbcs.c +--- linux-3.1.1/drivers/char/mbcs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/mbcs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -800,7 +800,7 @@ static int mbcs_remove(struct cx_dev *de + 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 -urNp linux-3.1.1/drivers/char/mem.c linux-3.1.1/drivers/char/mem.c +--- linux-3.1.1/drivers/char/mem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/mem.c 2011-11-17 18:31:56.000000000 -0500 +@@ -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> +@@ -34,6 +35,10 @@ + # 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) + { +@@ -65,9 +70,13 @@ static inline int range_is_allowed(unsig + + 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; +@@ -75,6 +84,11 @@ static inline int range_is_allowed(unsig + } + 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) + { +@@ -117,6 +131,7 @@ static ssize_t read_mem(struct file *fil + + while (count > 0) { + unsigned long remaining; ++ char *temp; + + sz = size_inside_page(p, count); + +@@ -132,7 +147,23 @@ static ssize_t read_mem(struct file *fil + 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; +@@ -395,9 +426,8 @@ static ssize_t read_kmem(struct file *fi + 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) { +@@ -419,6 +449,8 @@ static ssize_t read_kmem(struct file *fi + } + #endif + while (low_count > 0) { ++ char *temp; ++ + sz = size_inside_page(p, low_count); + + /* +@@ -428,7 +460,22 @@ static ssize_t read_kmem(struct file *fi + */ + 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; +@@ -866,6 +913,9 @@ 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 -urNp linux-3.1.1/drivers/char/nvram.c linux-3.1.1/drivers/char/nvram.c +--- linux-3.1.1/drivers/char/nvram.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/nvram.c 2011-11-16 18:39:07.000000000 -0500 +@@ -248,7 +248,7 @@ static ssize_t nvram_read(struct file *f + + 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 -urNp linux-3.1.1/drivers/char/random.c linux-3.1.1/drivers/char/random.c +--- linux-3.1.1/drivers/char/random.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/random.c 2011-11-16 18:40:10.000000000 -0500 +@@ -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 }, +@@ -909,7 +921,7 @@ static ssize_t extract_entropy_user(stru + + 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; + } +@@ -1214,7 +1226,7 @@ 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 -urNp linux-3.1.1/drivers/char/sonypi.c linux-3.1.1/drivers/char/sonypi.c +--- linux-3.1.1/drivers/char/sonypi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/sonypi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -55,6 +55,7 @@ + #include <asm/uaccess.h> + #include <asm/io.h> + #include <asm/system.h> ++#include <asm/local.h> + + #include <linux/sonypi.h> + +@@ -491,7 +492,7 @@ 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; +@@ -898,7 +899,7 @@ static int sonypi_misc_fasync(int fd, st + 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; + } +@@ -907,9 +908,9 @@ static int sonypi_misc_open(struct inode + { + 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 -urNp linux-3.1.1/drivers/char/tpm/tpm_bios.c linux-3.1.1/drivers/char/tpm/tpm_bios.c +--- linux-3.1.1/drivers/char/tpm/tpm_bios.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/tpm/tpm_bios.c 2011-11-16 18:39:07.000000000 -0500 +@@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start + 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( + 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_ + 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->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 -urNp linux-3.1.1/drivers/char/tpm/tpm.c linux-3.1.1/drivers/char/tpm/tpm.c +--- linux-3.1.1/drivers/char/tpm/tpm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/tpm/tpm.c 2011-11-16 18:40:10.000000000 -0500 +@@ -414,7 +414,7 @@ static ssize_t tpm_transmit(struct tpm_c + 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; +@@ -862,6 +862,8 @@ ssize_t tpm_show_pubek(struct device *de + + struct tpm_chip *chip = dev_get_drvdata(dev); + ++ pax_track_stack(); ++ + tpm_cmd.header.in = tpm_readpubek_header; + err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, + "attempting to read the PUBEK"); +diff -urNp linux-3.1.1/drivers/char/virtio_console.c linux-3.1.1/drivers/char/virtio_console.c +--- linux-3.1.1/drivers/char/virtio_console.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/char/virtio_console.c 2011-11-16 18:39:07.000000000 -0500 +@@ -555,7 +555,7 @@ static ssize_t fill_readbuf(struct port + 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 { +@@ -654,7 +654,7 @@ static ssize_t port_fops_read(struct fil + 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 -urNp linux-3.1.1/drivers/crypto/hifn_795x.c linux-3.1.1/drivers/crypto/hifn_795x.c +--- linux-3.1.1/drivers/crypto/hifn_795x.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/crypto/hifn_795x.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1655,6 +1655,8 @@ static int hifn_test(struct hifn_device + 0xCA, 0x34, 0x2B, 0x2E}; + struct scatterlist sg; + ++ pax_track_stack(); ++ + memset(src, 0, sizeof(src)); + memset(ctx.key, 0, sizeof(ctx.key)); + +diff -urNp linux-3.1.1/drivers/crypto/padlock-aes.c linux-3.1.1/drivers/crypto/padlock-aes.c +--- linux-3.1.1/drivers/crypto/padlock-aes.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/crypto/padlock-aes.c 2011-11-16 18:40:10.000000000 -0500 +@@ -109,6 +109,8 @@ static int aes_set_key(struct crypto_tfm + struct crypto_aes_ctx gen_aes; + int cpu; + ++ pax_track_stack(); ++ + if (key_len % 8) { + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; +diff -urNp linux-3.1.1/drivers/edac/amd64_edac.c linux-3.1.1/drivers/edac/amd64_edac.c +--- linux-3.1.1/drivers/edac/amd64_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/amd64_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2670,7 +2670,7 @@ static void __devexit amd64_remove_one_i + * PCI core identifies what devices are on a system during boot, and then + * inquiry this table to see if this driver is for a given device found. + */ +-static const struct pci_device_id amd64_pci_table[] __devinitdata = { ++static const struct pci_device_id amd64_pci_table[] __devinitconst = { + { + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_K8_NB_MEMCTL, +diff -urNp linux-3.1.1/drivers/edac/amd76x_edac.c linux-3.1.1/drivers/edac/amd76x_edac.c +--- linux-3.1.1/drivers/edac/amd76x_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/amd76x_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -321,7 +321,7 @@ static void __devexit amd76x_remove_one( + edac_mc_free(mci); + } + +-static const struct pci_device_id amd76x_pci_tbl[] __devinitdata = { ++static const struct pci_device_id amd76x_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(AMD, FE_GATE_700C), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + AMD762}, +diff -urNp linux-3.1.1/drivers/edac/e752x_edac.c linux-3.1.1/drivers/edac/e752x_edac.c +--- linux-3.1.1/drivers/edac/e752x_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/e752x_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1380,7 +1380,7 @@ static void __devexit e752x_remove_one(s + edac_mc_free(mci); + } + +-static const struct pci_device_id e752x_pci_tbl[] __devinitdata = { ++static const struct pci_device_id e752x_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7520}, +diff -urNp linux-3.1.1/drivers/edac/e7xxx_edac.c linux-3.1.1/drivers/edac/e7xxx_edac.c +--- linux-3.1.1/drivers/edac/e7xxx_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/e7xxx_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -525,7 +525,7 @@ static void __devexit e7xxx_remove_one(s + edac_mc_free(mci); + } + +-static const struct pci_device_id e7xxx_pci_tbl[] __devinitdata = { ++static const struct pci_device_id e7xxx_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7205}, +diff -urNp linux-3.1.1/drivers/edac/edac_pci_sysfs.c linux-3.1.1/drivers/edac/edac_pci_sysfs.c +--- linux-3.1.1/drivers/edac/edac_pci_sysfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/edac_pci_sysfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log + 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(str + 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(str + "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(str + "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(str + 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(str + "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(str + "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 -urNp linux-3.1.1/drivers/edac/i3000_edac.c linux-3.1.1/drivers/edac/i3000_edac.c +--- linux-3.1.1/drivers/edac/i3000_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i3000_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -470,7 +470,7 @@ static void __devexit i3000_remove_one(s + edac_mc_free(mci); + } + +-static const struct pci_device_id i3000_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i3000_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 3000_HB), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I3000}, +diff -urNp linux-3.1.1/drivers/edac/i3200_edac.c linux-3.1.1/drivers/edac/i3200_edac.c +--- linux-3.1.1/drivers/edac/i3200_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i3200_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -456,7 +456,7 @@ static void __devexit i3200_remove_one(s + edac_mc_free(mci); + } + +-static const struct pci_device_id i3200_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i3200_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 3200_HB), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I3200}, +diff -urNp linux-3.1.1/drivers/edac/i5000_edac.c linux-3.1.1/drivers/edac/i5000_edac.c +--- linux-3.1.1/drivers/edac/i5000_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i5000_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1516,7 +1516,7 @@ static void __devexit i5000_remove_one(s + * + * The "E500P" device is the first device supported. + */ +-static const struct pci_device_id i5000_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i5000_pci_tbl[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I5000_DEV16), + .driver_data = I5000P}, + +diff -urNp linux-3.1.1/drivers/edac/i5100_edac.c linux-3.1.1/drivers/edac/i5100_edac.c +--- linux-3.1.1/drivers/edac/i5100_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i5100_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1051,7 +1051,7 @@ static void __devexit i5100_remove_one(s + edac_mc_free(mci); + } + +-static const struct pci_device_id i5100_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i5100_pci_tbl[] __devinitconst = { + /* Device 16, Function 0, Channel 0 Memory Map, Error Flag/Mask, ... */ + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5100_16) }, + { 0, } +diff -urNp linux-3.1.1/drivers/edac/i5400_edac.c linux-3.1.1/drivers/edac/i5400_edac.c +--- linux-3.1.1/drivers/edac/i5400_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i5400_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1383,7 +1383,7 @@ static void __devexit i5400_remove_one(s + * + * The "E500P" device is the first device supported. + */ +-static const struct pci_device_id i5400_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i5400_pci_tbl[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5400_ERR)}, + {0,} /* 0 terminated list. */ + }; +diff -urNp linux-3.1.1/drivers/edac/i7300_edac.c linux-3.1.1/drivers/edac/i7300_edac.c +--- linux-3.1.1/drivers/edac/i7300_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i7300_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1191,7 +1191,7 @@ static void __devexit i7300_remove_one(s + * + * Has only 8086:360c PCI ID + */ +-static const struct pci_device_id i7300_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i7300_pci_tbl[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I7300_MCH_ERR)}, + {0,} /* 0 terminated list. */ + }; +diff -urNp linux-3.1.1/drivers/edac/i7core_edac.c linux-3.1.1/drivers/edac/i7core_edac.c +--- linux-3.1.1/drivers/edac/i7core_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i7core_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -359,7 +359,7 @@ static const struct pci_id_table pci_dev + /* + * pci_device_id table for which devices we are looking for + */ +-static const struct pci_device_id i7core_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i7core_pci_tbl[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_X58_HUB_MGMT)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNNFIELD_QPI_LINK0)}, + {0,} /* 0 terminated list. */ +diff -urNp linux-3.1.1/drivers/edac/i82443bxgx_edac.c linux-3.1.1/drivers/edac/i82443bxgx_edac.c +--- linux-3.1.1/drivers/edac/i82443bxgx_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i82443bxgx_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -380,7 +380,7 @@ static void __devexit i82443bxgx_edacmc_ + + EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_remove_one); + +-static const struct pci_device_id i82443bxgx_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i82443bxgx_pci_tbl[] __devinitconst = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0)}, +diff -urNp linux-3.1.1/drivers/edac/i82860_edac.c linux-3.1.1/drivers/edac/i82860_edac.c +--- linux-3.1.1/drivers/edac/i82860_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i82860_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -270,7 +270,7 @@ static void __devexit i82860_remove_one( + edac_mc_free(mci); + } + +-static const struct pci_device_id i82860_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i82860_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82860}, +diff -urNp linux-3.1.1/drivers/edac/i82875p_edac.c linux-3.1.1/drivers/edac/i82875p_edac.c +--- linux-3.1.1/drivers/edac/i82875p_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i82875p_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -511,7 +511,7 @@ static void __devexit i82875p_remove_one + edac_mc_free(mci); + } + +-static const struct pci_device_id i82875p_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i82875p_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 82875_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82875P}, +diff -urNp linux-3.1.1/drivers/edac/i82975x_edac.c linux-3.1.1/drivers/edac/i82975x_edac.c +--- linux-3.1.1/drivers/edac/i82975x_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/i82975x_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -604,7 +604,7 @@ static void __devexit i82975x_remove_one + edac_mc_free(mci); + } + +-static const struct pci_device_id i82975x_pci_tbl[] __devinitdata = { ++static const struct pci_device_id i82975x_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, 82975_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82975X +diff -urNp linux-3.1.1/drivers/edac/mce_amd.h linux-3.1.1/drivers/edac/mce_amd.h +--- linux-3.1.1/drivers/edac/mce_amd.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/mce_amd.h 2011-11-16 18:39:07.000000000 -0500 +@@ -83,7 +83,7 @@ struct amd_decoder_ops { + bool (*dc_mce)(u16, u8); + bool (*ic_mce)(u16, u8); + bool (*nb_mce)(u16, u8); +-}; ++} __no_const; + + void amd_report_gart_errors(bool); + void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32)); +diff -urNp linux-3.1.1/drivers/edac/r82600_edac.c linux-3.1.1/drivers/edac/r82600_edac.c +--- linux-3.1.1/drivers/edac/r82600_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/r82600_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -373,7 +373,7 @@ static void __devexit r82600_remove_one( + edac_mc_free(mci); + } + +-static const struct pci_device_id r82600_pci_tbl[] __devinitdata = { ++static const struct pci_device_id r82600_pci_tbl[] __devinitconst = { + { + PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID) + }, +diff -urNp linux-3.1.1/drivers/edac/x38_edac.c linux-3.1.1/drivers/edac/x38_edac.c +--- linux-3.1.1/drivers/edac/x38_edac.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/edac/x38_edac.c 2011-11-16 18:39:07.000000000 -0500 +@@ -440,7 +440,7 @@ static void __devexit x38_remove_one(str + edac_mc_free(mci); + } + +-static const struct pci_device_id x38_pci_tbl[] __devinitdata = { ++static const struct pci_device_id x38_pci_tbl[] __devinitconst = { + { + PCI_VEND_DEV(INTEL, X38_HB), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + X38}, +diff -urNp linux-3.1.1/drivers/firewire/core-card.c linux-3.1.1/drivers/firewire/core-card.c +--- linux-3.1.1/drivers/firewire/core-card.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/firewire/core-card.c 2011-11-16 18:39:07.000000000 -0500 +@@ -657,7 +657,7 @@ 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 -urNp linux-3.1.1/drivers/firewire/core-cdev.c linux-3.1.1/drivers/firewire/core-cdev.c +--- linux-3.1.1/drivers/firewire/core-cdev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/firewire/core-cdev.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1331,8 +1331,7 @@ static int init_iso_resource(struct clie + 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 -urNp linux-3.1.1/drivers/firewire/core.h linux-3.1.1/drivers/firewire/core.h +--- linux-3.1.1/drivers/firewire/core.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/firewire/core.h 2011-11-16 18:39:07.000000000 -0500 +@@ -101,6 +101,7 @@ 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 -urNp linux-3.1.1/drivers/firewire/core-transaction.c linux-3.1.1/drivers/firewire/core-transaction.c +--- linux-3.1.1/drivers/firewire/core-transaction.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/firewire/core-transaction.c 2011-11-16 18:40:10.000000000 -0500 +@@ -37,6 +37,7 @@ + #include <linux/timer.h> + #include <linux/types.h> + #include <linux/workqueue.h> ++#include <linux/sched.h> + + #include <asm/byteorder.h> + +@@ -422,6 +423,8 @@ int fw_run_transaction(struct fw_card *c + struct transaction_callback_data d; + struct fw_transaction t; + ++ pax_track_stack(); ++ + init_timer_on_stack(&t.split_timeout_timer); + init_completion(&d.done); + d.payload = payload; +diff -urNp linux-3.1.1/drivers/firmware/dmi_scan.c linux-3.1.1/drivers/firmware/dmi_scan.c +--- linux-3.1.1/drivers/firmware/dmi_scan.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/firmware/dmi_scan.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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; +@@ -725,7 +720,7 @@ int dmi_walk(void (*decode)(const struct + 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 -urNp linux-3.1.1/drivers/gpio/gpio-vr41xx.c linux-3.1.1/drivers/gpio/gpio-vr41xx.c +--- linux-3.1.1/drivers/gpio/gpio-vr41xx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpio/gpio-vr41xx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/drm_crtc.c linux-3.1.1/drivers/gpu/drm/drm_crtc.c +--- linux-3.1.1/drivers/gpu/drm/drm_crtc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_crtc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1374,7 +1374,7 @@ int drm_mode_getconnector(struct drm_dev + */ + if ((out_resp->count_modes >= mode_count) && mode_count) { + copied = 0; +- mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr; ++ mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; + list_for_each_entry(mode, &connector->modes, head) { + drm_crtc_convert_to_umode(&u_mode, mode); + if (copy_to_user(mode_ptr + copied, +@@ -1389,8 +1389,8 @@ int drm_mode_getconnector(struct drm_dev + + if ((out_resp->count_props >= props_count) && props_count) { + copied = 0; +- prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr); +- prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr); ++ prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); ++ prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); + for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { + if (connector->property_ids[i] != 0) { + if (put_user(connector->property_ids[i], +@@ -1412,7 +1412,7 @@ int drm_mode_getconnector(struct drm_dev + + if ((out_resp->count_encoders >= encoders_count) && encoders_count) { + copied = 0; +- encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr); ++ encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { + if (connector->encoder_ids[i] != 0) { + if (put_user(connector->encoder_ids[i], +@@ -1571,7 +1571,7 @@ int drm_mode_setcrtc(struct drm_device * + } + + for (i = 0; i < crtc_req->count_connectors; i++) { +- set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr; ++ set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; + if (get_user(out_id, &set_connectors_ptr[i])) { + ret = -EFAULT; + goto out; +@@ -1852,7 +1852,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_de + fb = obj_to_fb(obj); + + num_clips = r->num_clips; +- clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr; ++ clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; + + if (!num_clips != !clips_ptr) { + ret = -EINVAL; +@@ -2272,7 +2272,7 @@ int drm_mode_getproperty_ioctl(struct dr + out_resp->flags = property->flags; + + if ((out_resp->count_values >= value_count) && value_count) { +- values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr; ++ values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; + for (i = 0; i < value_count; i++) { + if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { + ret = -EFAULT; +@@ -2285,7 +2285,7 @@ int drm_mode_getproperty_ioctl(struct dr + if (property->flags & DRM_MODE_PROP_ENUM) { + if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { + copied = 0; +- enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr; ++ enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; + list_for_each_entry(prop_enum, &property->enum_blob_list, head) { + + if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { +@@ -2308,7 +2308,7 @@ int drm_mode_getproperty_ioctl(struct dr + if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { + copied = 0; + blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr; +- blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr; ++ blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; + + list_for_each_entry(prop_blob, &property->enum_blob_list, head) { + if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { +@@ -2369,7 +2369,7 @@ int drm_mode_getblob_ioctl(struct drm_de + struct drm_mode_get_blob *out_resp = data; + struct drm_property_blob *blob; + int ret = 0; +- void *blob_ptr; ++ void __user *blob_ptr; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; +@@ -2383,7 +2383,7 @@ int drm_mode_getblob_ioctl(struct drm_de + blob = obj_to_blob(obj); + + if (out_resp->length == blob->length) { +- blob_ptr = (void *)(unsigned long)out_resp->data; ++ blob_ptr = (void __user *)(unsigned long)out_resp->data; + if (copy_to_user(blob_ptr, blob->data, blob->length)){ + ret = -EFAULT; + goto done; +diff -urNp linux-3.1.1/drivers/gpu/drm/drm_crtc_helper.c linux-3.1.1/drivers/gpu/drm/drm_crtc_helper.c +--- linux-3.1.1/drivers/gpu/drm/drm_crtc_helper.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_crtc_helper.c 2011-11-16 18:40:10.000000000 -0500 +@@ -276,7 +276,7 @@ static bool drm_encoder_crtc_ok(struct d + struct drm_crtc *tmp; + int crtc_mask = 1; + +- WARN(!crtc, "checking null crtc?\n"); ++ BUG_ON(!crtc); + + dev = crtc->dev; + +@@ -343,6 +343,8 @@ bool drm_crtc_helper_set_mode(struct drm + struct drm_encoder *encoder; + bool ret = true; + ++ pax_track_stack(); ++ + crtc->enabled = drm_helper_crtc_in_use(crtc); + if (!crtc->enabled) + return true; +diff -urNp linux-3.1.1/drivers/gpu/drm/drm_drv.c linux-3.1.1/drivers/gpu/drm/drm_drv.c +--- linux-3.1.1/drivers/gpu/drm/drm_drv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_drv.c 2011-11-16 18:39:07.000000000 -0500 +@@ -307,7 +307,7 @@ 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; + +@@ -386,7 +386,7 @@ long drm_ioctl(struct file *filp, + + dev = file_priv->minor->dev; + 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_fops.c linux-3.1.1/drivers/gpu/drm/drm_fops.c +--- linux-3.1.1/drivers/gpu/drm/drm_fops.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_fops.c 2011-11-16 18:39:07.000000000 -0500 +@@ -70,7 +70,7 @@ static int drm_setup(struct drm_device * + } + + 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; + +@@ -134,8 +134,8 @@ int drm_open(struct inode *inode, struct + + 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) { +@@ -472,7 +472,7 @@ int drm_release(struct inode *inode, str + + mutex_lock(&drm_global_mutex); + +- DRM_DEBUG("open_count = %d\n", dev->open_count); ++ DRM_DEBUG("open_count = %d\n", local_read(&dev->open_count)); + + if (dev->driver->preclose) + dev->driver->preclose(dev, file_priv); +@@ -484,7 +484,7 @@ int drm_release(struct inode *inode, str + DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", + task_pid_nr(current), + (long)old_encode_dev(file_priv->minor->device), +- dev->open_count); ++ local_read(&dev->open_count)); + + /* if the master has gone away we can't do anything with the lock */ + if (file_priv->minor->master) +@@ -565,8 +565,8 @@ int drm_release(struct inode *inode, str + * 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_global.c linux-3.1.1/drivers/gpu/drm/drm_global.c +--- linux-3.1.1/drivers/gpu/drm/drm_global.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_global.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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_globa + 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_globa + 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_gl + 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_info.c linux-3.1.1/drivers/gpu/drm/drm_info.c +--- linux-3.1.1/drivers/gpu/drm/drm_info.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_info.c 2011-11-16 18:40:10.000000000 -0500 +@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void + 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 + 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, voi + 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_ioc32.c linux-3.1.1/drivers/gpu/drm/drm_ioc32.c +--- linux-3.1.1/drivers/gpu/drm/drm_ioc32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_ioc32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -455,7 +455,7 @@ static int compat_drm_infobufs(struct fi + 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)) +@@ -516,7 +516,7 @@ static int compat_drm_mapbufs(struct fil + 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_ioctl.c linux-3.1.1/drivers/gpu/drm/drm_ioctl.c +--- linux-3.1.1/drivers/gpu/drm/drm_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_ioctl.c 2011-11-16 18:39:07.000000000 -0500 +@@ -256,7 +256,7 @@ int drm_getstats(struct drm_device *dev, + 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 -urNp linux-3.1.1/drivers/gpu/drm/drm_lock.c linux-3.1.1/drivers/gpu/drm/drm_lock.c +--- linux-3.1.1/drivers/gpu/drm/drm_lock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/drm_lock.c 2011-11-16 18:39:07.000000000 -0500 +@@ -89,7 +89,7 @@ int drm_lock(struct drm_device *dev, voi + 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 */ + } + +@@ -160,7 +160,7 @@ int drm_unlock(struct drm_device *dev, v + 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 -urNp linux-3.1.1/drivers/gpu/drm/i810/i810_dma.c linux-3.1.1/drivers/gpu/drm/i810/i810_dma.c +--- linux-3.1.1/drivers/gpu/drm/i810/i810_dma.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i810/i810_dma.c 2011-11-16 18:39:07.000000000 -0500 +@@ -950,8 +950,8 @@ static int i810_dma_vertex(struct drm_de + 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]; + +@@ -1111,8 +1111,8 @@ static int i810_dma_mc(struct drm_device + 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 -urNp linux-3.1.1/drivers/gpu/drm/i810/i810_drv.h linux-3.1.1/drivers/gpu/drm/i810/i810_drv.h +--- linux-3.1.1/drivers/gpu/drm/i810/i810_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i810/i810_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/i915/i915_debugfs.c linux-3.1.1/drivers/gpu/drm/i915/i915_debugfs.c +--- linux-3.1.1/drivers/gpu/drm/i915/i915_debugfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/i915_debugfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -497,7 +497,7 @@ static int i915_interrupt_info(struct se + 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", +@@ -1185,7 +1185,7 @@ static int i915_opregion(struct seq_file + 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 -urNp linux-3.1.1/drivers/gpu/drm/i915/i915_dma.c linux-3.1.1/drivers/gpu/drm/i915/i915_dma.c +--- linux-3.1.1/drivers/gpu/drm/i915/i915_dma.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/i915_dma.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1171,7 +1171,7 @@ static bool i915_switcheroo_can_switch(s + 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 -urNp linux-3.1.1/drivers/gpu/drm/i915/i915_drv.h linux-3.1.1/drivers/gpu/drm/i915/i915_drv.h +--- linux-3.1.1/drivers/gpu/drm/i915/i915_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/i915_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -222,7 +222,7 @@ 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; +@@ -305,7 +305,7 @@ 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; +@@ -882,7 +882,7 @@ 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) +@@ -1262,7 +1262,7 @@ extern int intel_setup_gmbus(struct drm_ + 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 -urNp linux-3.1.1/drivers/gpu/drm/i915/i915_gem_execbuffer.c linux-3.1.1/drivers/gpu/drm/i915/i915_gem_execbuffer.c +--- linux-3.1.1/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-11-16 18:39:07.000000000 -0500 +@@ -188,7 +188,7 @@ i915_gem_object_set_to_gpu_domain(struct + 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 +diff -urNp linux-3.1.1/drivers/gpu/drm/i915/i915_irq.c linux-3.1.1/drivers/gpu/drm/i915/i915_irq.c +--- linux-3.1.1/drivers/gpu/drm/i915/i915_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/i915_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -475,7 +475,7 @@ static irqreturn_t ivybridge_irq_handler + 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); +@@ -565,7 +565,7 @@ static irqreturn_t ironlake_irq_handler( + 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; +@@ -1228,7 +1228,7 @@ static irqreturn_t i915_driver_irq_handl + 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); + +@@ -1740,7 +1740,7 @@ static void ironlake_irq_preinstall(stru + { + 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); +@@ -1904,7 +1904,7 @@ static void i915_driver_irq_preinstall(s + 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 -urNp linux-3.1.1/drivers/gpu/drm/i915/intel_display.c linux-3.1.1/drivers/gpu/drm/i915/intel_display.c +--- linux-3.1.1/drivers/gpu/drm/i915/intel_display.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/i915/intel_display.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2205,7 +2205,7 @@ intel_pipe_set_base(struct drm_crtc *crt + + 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 +@@ -2824,7 +2824,7 @@ static void intel_crtc_wait_for_pending_ + 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) +@@ -6644,7 +6644,7 @@ static void do_intel_finish_page_flip(st + + 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); +@@ -6933,7 +6933,7 @@ static int intel_crtc_page_flip(struct d + /* 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) +@@ -6947,7 +6947,7 @@ static int intel_crtc_page_flip(struct d + 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); + cleanup_objs: + drm_gem_object_unreference(&work->old_fb_obj->base); + drm_gem_object_unreference(&obj->base); +diff -urNp linux-3.1.1/drivers/gpu/drm/mga/mga_drv.h linux-3.1.1/drivers/gpu/drm/mga/mga_drv.h +--- linux-3.1.1/drivers/gpu/drm/mga/mga_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/mga/mga_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/mga/mga_irq.c linux-3.1.1/drivers/gpu/drm/mga/mga_irq.c +--- linux-3.1.1/drivers/gpu/drm/mga/mga_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/mga/mga_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_de + 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_I + /* 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_I + 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_dev + * 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 -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_bios.c linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_bios.c +--- linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-11-16 18:39:07.000000000 -0500 +@@ -201,7 +201,7 @@ struct methods { + const char desc[8]; + void (*loadbios)(struct drm_device *, uint8_t *); + const bool rw; +-}; ++} __do_const; + + static struct methods shadow_methods[] = { + { "PRAMIN", load_vbios_pramin, true }, +@@ -5489,7 +5489,7 @@ parse_bit_displayport_tbl_entry(struct d + 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 -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_drv.h linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_drv.h +--- linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -238,7 +238,7 @@ 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; + +@@ -319,7 +319,7 @@ 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; +@@ -341,13 +341,13 @@ 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; +@@ -513,7 +513,7 @@ 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; +@@ -660,7 +660,7 @@ 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 -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_fence.c linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_fence.c +--- linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-11-16 18:39:07.000000000 -0500 +@@ -85,7 +85,7 @@ nouveau_fence_update(struct nouveau_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; +@@ -541,7 +541,7 @@ nouveau_fence_channel_init(struct nouvea + + INIT_LIST_HEAD(&chan->fence.pending); + spin_lock_init(&chan->fence.lock); +- atomic_set(&chan->fence.last_sequence_irq, 0); ++ atomic_set_unchecked(&chan->fence.last_sequence_irq, 0); + return 0; + } + +diff -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_gem.c linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_gem.c +--- linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-11-16 18:39:07.000000000 -0500 +@@ -314,7 +314,7 @@ validate_init(struct nouveau_channel *ch + 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 -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_state.c linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_state.c +--- linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_state.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nouveau_state.c 2011-11-16 18:39:07.000000000 -0500 +@@ -496,7 +496,7 @@ static bool nouveau_switcheroo_can_switc + 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 -urNp linux-3.1.1/drivers/gpu/drm/nouveau/nv04_graph.c linux-3.1.1/drivers/gpu/drm/nouveau/nv04_graph.c +--- linux-3.1.1/drivers/gpu/drm/nouveau/nv04_graph.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/nouveau/nv04_graph.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/r128/r128_cce.c linux-3.1.1/drivers/gpu/drm/r128/r128_cce.c +--- linux-3.1.1/drivers/gpu/drm/r128/r128_cce.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/r128/r128_cce.c 2011-11-16 18:39:07.000000000 -0500 +@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_d + + /* 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 -urNp linux-3.1.1/drivers/gpu/drm/r128/r128_drv.h linux-3.1.1/drivers/gpu/drm/r128/r128_drv.h +--- linux-3.1.1/drivers/gpu/drm/r128/r128_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/r128/r128_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/r128/r128_irq.c linux-3.1.1/drivers/gpu/drm/r128/r128_irq.c +--- linux-3.1.1/drivers/gpu/drm/r128/r128_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/r128/r128_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_d + 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_ + /* 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 -urNp linux-3.1.1/drivers/gpu/drm/r128/r128_state.c linux-3.1.1/drivers/gpu/drm/r128/r128_state.c +--- linux-3.1.1/drivers/gpu/drm/r128/r128_state.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/r128/r128_state.c 2011-11-16 18:39:07.000000000 -0500 +@@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/atom.c linux-3.1.1/drivers/gpu/drm/radeon/atom.c +--- linux-3.1.1/drivers/gpu/drm/radeon/atom.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/atom.c 2011-11-16 19:09:42.000000000 -0500 +@@ -1254,6 +1254,8 @@ struct atom_context *atom_parse(struct c + char name[512]; + int i; + ++ pax_track_stack(); ++ + if (!ctx) + return NULL; + +diff -urNp linux-3.1.1/drivers/gpu/drm/radeon/mkregtable.c linux-3.1.1/drivers/gpu/drm/radeon/mkregtable.c +--- linux-3.1.1/drivers/gpu/drm/radeon/mkregtable.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/mkregtable.c 2011-11-16 18:39:07.000000000 -0500 +@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, + 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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_atombios.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_atombios.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_atombios.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_atombios.c 2011-11-16 18:40:10.000000000 -0500 +@@ -545,6 +545,8 @@ bool radeon_get_atom_connector_info_from + struct radeon_gpio_rec gpio; + struct radeon_hpd hpd; + ++ pax_track_stack(); ++ + if (!atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset)) + return false; + +diff -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_device.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_device.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_device.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_device.c 2011-11-16 18:39:07.000000000 -0500 +@@ -684,7 +684,7 @@ static bool radeon_switcheroo_can_switch + 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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_display.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_display.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_display.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_display.c 2011-11-16 18:40:10.000000000 -0500 +@@ -925,6 +925,8 @@ void radeon_compute_pll_legacy(struct ra + uint32_t post_div; + u32 pll_out_min, pll_out_max; + ++ pax_track_stack(); ++ + DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); + freq = freq * 1000; + +diff -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_drv.h linux-3.1.1/drivers/gpu/drm/radeon/radeon_drv.h +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_fence.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_fence.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_fence.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_fence.c 2011-11-16 18:39:07.000000000 -0500 +@@ -78,7 +78,7 @@ int radeon_fence_emit(struct radeon_devi + write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); + return 0; + } +- fence->seq = atomic_add_return(1, &rdev->fence_drv.seq); ++ fence->seq = atomic_add_return_unchecked(1, &rdev->fence_drv.seq); + if (!rdev->cp.ready) + /* FIXME: cp is not running assume everythings is done right + * away +@@ -373,7 +373,7 @@ int radeon_fence_driver_init(struct rade + return r; + } + radeon_fence_write(rdev, 0); +- atomic_set(&rdev->fence_drv.seq, 0); ++ atomic_set_unchecked(&rdev->fence_drv.seq, 0); + INIT_LIST_HEAD(&rdev->fence_drv.created); + INIT_LIST_HEAD(&rdev->fence_drv.emited); + INIT_LIST_HEAD(&rdev->fence_drv.signaled); +diff -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon.h linux-3.1.1/drivers/gpu/drm/radeon/radeon.h +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon.h 2011-11-16 18:39:07.000000000 -0500 +@@ -192,7 +192,7 @@ extern int sumo_get_temp(struct radeon_d + */ + struct radeon_fence_driver { + uint32_t scratch_reg; +- atomic_t seq; ++ atomic_unchecked_t seq; + uint32_t last_seq; + unsigned long last_jiffies; + unsigned long last_timeout; +@@ -962,7 +962,7 @@ struct radeon_asic { + void (*pre_page_flip)(struct radeon_device *rdev, int crtc); + u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base); + void (*post_page_flip)(struct radeon_device *rdev, int crtc); +-}; ++} __no_const; + + /* + * Asic structures +diff -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_ioc32.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_ioc32.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(str + 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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_irq.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_irq.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_de + 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_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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_state.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_state.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_state.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_state.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_de + 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 + { + 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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/radeon_ttm.c linux-3.1.1/drivers/gpu/drm/radeon/radeon_ttm.c +--- linux-3.1.1/drivers/gpu/drm/radeon/radeon_ttm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/radeon_ttm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -672,8 +672,10 @@ int radeon_mmap(struct file *filp, struc + } + 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 -urNp linux-3.1.1/drivers/gpu/drm/radeon/rs690.c linux-3.1.1/drivers/gpu/drm/radeon/rs690.c +--- linux-3.1.1/drivers/gpu/drm/radeon/rs690.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/radeon/rs690.c 2011-11-16 18:39:07.000000000 -0500 +@@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct + 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 -urNp linux-3.1.1/drivers/gpu/drm/ttm/ttm_page_alloc.c linux-3.1.1/drivers/gpu/drm/ttm/ttm_page_alloc.c +--- linux-3.1.1/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -398,9 +398,9 @@ static int ttm_pool_get_num_unused_pages + 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 -urNp linux-3.1.1/drivers/gpu/drm/via/via_drv.h linux-3.1.1/drivers/gpu/drm/via/via_drv.h +--- linux-3.1.1/drivers/gpu/drm/via/via_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/via/via_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/gpu/drm/via/via_irq.c linux-3.1.1/drivers/gpu/drm/via/via_irq.c +--- linux-3.1.1/drivers/gpu/drm/via/via_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/via/via_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_de + 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_I + + 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_I + 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_I + + 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 *d + 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 dr + } + + 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, + 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 -urNp linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +--- linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-11-16 18:39:07.000000000 -0500 +@@ -240,7 +240,7 @@ struct vmw_private { + * Fencing and IRQs. + */ + +- atomic_t fence_seq; ++ atomic_unchecked_t fence_seq; + wait_queue_head_t fence_queue; + wait_queue_head_t fifo_queue; + atomic_t fence_queue_waiters; +diff -urNp linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +--- linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c 2011-11-16 18:39:07.000000000 -0500 +@@ -610,7 +610,7 @@ int vmw_execbuf_ioctl(struct drm_device + struct drm_vmw_fence_rep fence_rep; + struct drm_vmw_fence_rep __user *user_fence_rep; + int ret; +- void *user_cmd; ++ void __user *user_cmd; + void *cmd; + uint32_t sequence; + struct vmw_sw_context *sw_context = &dev_priv->ctx; +diff -urNp linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +--- linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-11-16 18:39:07.000000000 -0500 +@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev + while (!vmw_lag_lt(queue, us)) { + spin_lock(&queue->lock); + if (list_empty(&queue->head)) +- sequence = atomic_read(&dev_priv->fence_seq); ++ sequence = atomic_read_unchecked(&dev_priv->fence_seq); + else { + fence = list_first_entry(&queue->head, + struct vmw_fence, head); +diff -urNp linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +--- linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-11-16 18:39:07.000000000 -0500 +@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *de + (unsigned int) min, + (unsigned int) fifo->capabilities); + +- atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence); ++ atomic_set_unchecked(&dev_priv->fence_seq, dev_priv->last_read_sequence); + iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE); + vmw_fence_queue_init(&fifo->fence_queue); + return vmw_fifo_send_fence(dev_priv, &dummy); +@@ -356,7 +356,7 @@ void *vmw_fifo_reserve(struct vmw_privat + 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; + } +@@ -476,7 +476,7 @@ int vmw_fifo_send_fence(struct vmw_priva + + fm = vmw_fifo_reserve(dev_priv, bytes); + if (unlikely(fm == NULL)) { +- *sequence = atomic_read(&dev_priv->fence_seq); ++ *sequence = atomic_read_unchecked(&dev_priv->fence_seq); + ret = -ENOMEM; + (void)vmw_fallback_wait(dev_priv, false, true, *sequence, + false, 3*HZ); +@@ -484,7 +484,7 @@ int vmw_fifo_send_fence(struct vmw_priva + } + + do { +- *sequence = atomic_add_return(1, &dev_priv->fence_seq); ++ *sequence = atomic_add_return_unchecked(1, &dev_priv->fence_seq); + } while (*sequence == 0); + + if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) { +diff -urNp linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c +--- linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-11-16 18:39:07.000000000 -0500 +@@ -100,7 +100,7 @@ bool vmw_fence_signaled(struct vmw_priva + * emitted. Then the fence is stale and signaled. + */ + +- ret = ((atomic_read(&dev_priv->fence_seq) - sequence) ++ ret = ((atomic_read_unchecked(&dev_priv->fence_seq) - sequence) + > VMW_FENCE_WRAP); + + return ret; +@@ -131,7 +131,7 @@ int vmw_fallback_wait(struct vmw_private + + if (fifo_idle) + down_read(&fifo_state->rwsem); +- signal_seq = atomic_read(&dev_priv->fence_seq); ++ signal_seq = atomic_read_unchecked(&dev_priv->fence_seq); + ret = 0; + + for (;;) { +diff -urNp linux-3.1.1/drivers/hid/hid-core.c linux-3.1.1/drivers/hid/hid-core.c +--- linux-3.1.1/drivers/hid/hid-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/hid/hid-core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1951,7 +1951,7 @@ static bool hid_ignore(struct hid_device + + 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)) +@@ -1966,7 +1966,7 @@ int hid_add_device(struct hid_device *hd + /* 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 -urNp linux-3.1.1/drivers/hid/usbhid/hiddev.c linux-3.1.1/drivers/hid/usbhid/hiddev.c +--- linux-3.1.1/drivers/hid/usbhid/hiddev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/hid/usbhid/hiddev.c 2011-11-16 18:39:07.000000000 -0500 +@@ -624,7 +624,7 @@ static long hiddev_ioctl(struct file *fi + break; + + case HIDIOCAPPLICATION: +- if (arg < 0 || arg >= hid->maxapplication) ++ if (arg >= hid->maxapplication) + break; + + for (i = 0; i < hid->maxcollection; i++) +diff -urNp linux-3.1.1/drivers/hwmon/acpi_power_meter.c linux-3.1.1/drivers/hwmon/acpi_power_meter.c +--- linux-3.1.1/drivers/hwmon/acpi_power_meter.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/hwmon/acpi_power_meter.c 2011-11-16 18:39:07.000000000 -0500 +@@ -316,8 +316,6 @@ static ssize_t set_trip(struct device *d + return res; + + temp /= 1000; +- if (temp < 0) +- return -EINVAL; + + mutex_lock(&resource->lock); + resource->trip[attr->index - 7] = temp; +diff -urNp linux-3.1.1/drivers/hwmon/sht15.c linux-3.1.1/drivers/hwmon/sht15.c +--- linux-3.1.1/drivers/hwmon/sht15.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/hwmon/sht15.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 sht1 + 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 + + /* 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 wo + * 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 has been scheduled */ + if (gpio_get_value(data->pdata->gpio_data) +- || atomic_read(&data->interrupt_handled)) ++ || atomic_read_unchecked(&data->interrupt_handled)) + return; + } + +diff -urNp linux-3.1.1/drivers/i2c/busses/i2c-amd756-s4882.c linux-3.1.1/drivers/i2c/busses/i2c-amd756-s4882.c +--- linux-3.1.1/drivers/i2c/busses/i2c-amd756-s4882.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/i2c/busses/i2c-amd756-s4882.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/i2c/busses/i2c-nforce2-s4985.c linux-3.1.1/drivers/i2c/busses/i2c-nforce2-s4985.c +--- linux-3.1.1/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/i2c/i2c-mux.c linux-3.1.1/drivers/i2c/i2c-mux.c +--- linux-3.1.1/drivers/i2c/i2c-mux.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/i2c/i2c-mux.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/ide/aec62xx.c linux-3.1.1/drivers/ide/aec62xx.c +--- linux-3.1.1/drivers/ide/aec62xx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/aec62xx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -181,7 +181,7 @@ static const struct ide_port_ops atp86x_ + .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 -urNp linux-3.1.1/drivers/ide/alim15x3.c linux-3.1.1/drivers/ide/alim15x3.c +--- linux-3.1.1/drivers/ide/alim15x3.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/alim15x3.c 2011-11-16 18:39:07.000000000 -0500 +@@ -512,7 +512,7 @@ static const struct ide_dma_ops ali_dma_ + .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 -urNp linux-3.1.1/drivers/ide/amd74xx.c linux-3.1.1/drivers/ide/amd74xx.c +--- linux-3.1.1/drivers/ide/amd74xx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/amd74xx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -223,7 +223,7 @@ static const struct ide_port_ops amd_por + .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 -urNp linux-3.1.1/drivers/ide/atiixp.c linux-3.1.1/drivers/ide/atiixp.c +--- linux-3.1.1/drivers/ide/atiixp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/atiixp.c 2011-11-16 18:39:07.000000000 -0500 +@@ -139,7 +139,7 @@ static const struct ide_port_ops atiixp_ + .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 -urNp linux-3.1.1/drivers/ide/cmd64x.c linux-3.1.1/drivers/ide/cmd64x.c +--- linux-3.1.1/drivers/ide/cmd64x.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/cmd64x.c 2011-11-16 18:39:07.000000000 -0500 +@@ -327,7 +327,7 @@ static const struct ide_dma_ops cmd646_r + .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 -urNp linux-3.1.1/drivers/ide/cs5520.c linux-3.1.1/drivers/ide/cs5520.c +--- linux-3.1.1/drivers/ide/cs5520.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/cs5520.c 2011-11-16 18:39:07.000000000 -0500 +@@ -94,7 +94,7 @@ static const struct ide_port_ops cs5520_ + .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 -urNp linux-3.1.1/drivers/ide/cs5530.c linux-3.1.1/drivers/ide/cs5530.c +--- linux-3.1.1/drivers/ide/cs5530.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/cs5530.c 2011-11-16 18:39:07.000000000 -0500 +@@ -245,7 +245,7 @@ static const struct ide_port_ops cs5530_ + .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 -urNp linux-3.1.1/drivers/ide/cs5535.c linux-3.1.1/drivers/ide/cs5535.c +--- linux-3.1.1/drivers/ide/cs5535.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/cs5535.c 2011-11-16 18:39:07.000000000 -0500 +@@ -170,7 +170,7 @@ static const struct ide_port_ops cs5535_ + .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 -urNp linux-3.1.1/drivers/ide/cy82c693.c linux-3.1.1/drivers/ide/cy82c693.c +--- linux-3.1.1/drivers/ide/cy82c693.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/cy82c693.c 2011-11-16 18:39:07.000000000 -0500 +@@ -163,7 +163,7 @@ static const struct ide_port_ops cy82c69 + .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 -urNp linux-3.1.1/drivers/ide/hpt366.c linux-3.1.1/drivers/ide/hpt366.c +--- linux-3.1.1/drivers/ide/hpt366.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/hpt366.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 __de + .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 __de + .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 __d + .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 __de + .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 __de + .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 __d + .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 __de + .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 __de + .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 __d + .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 __d + .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_d + .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 -urNp linux-3.1.1/drivers/ide/ide-cd.c linux-3.1.1/drivers/ide/ide-cd.c +--- linux-3.1.1/drivers/ide/ide-cd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/ide-cd.c 2011-11-16 18:39:07.000000000 -0500 +@@ -769,7 +769,7 @@ static void cdrom_do_block_pc(ide_drive_ + 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 -urNp linux-3.1.1/drivers/ide/ide-floppy.c linux-3.1.1/drivers/ide/ide-floppy.c +--- linux-3.1.1/drivers/ide/ide-floppy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/ide-floppy.c 2011-11-16 18:40:10.000000000 -0500 +@@ -379,6 +379,8 @@ static int ide_floppy_get_capacity(ide_d + u8 pc_buf[256], header_len, desc_cnt; + int i, rc = 1, blocks, length; + ++ pax_track_stack(); ++ + ide_debug_log(IDE_DBG_FUNC, "enter"); + + drive->bios_cyl = 0; +diff -urNp linux-3.1.1/drivers/ide/ide-pci-generic.c linux-3.1.1/drivers/ide/ide-pci-generic.c +--- linux-3.1.1/drivers/ide/ide-pci-generic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/ide-pci-generic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -53,7 +53,7 @@ static const struct ide_port_ops netcell + .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 -urNp linux-3.1.1/drivers/ide/it8172.c linux-3.1.1/drivers/ide/it8172.c +--- linux-3.1.1/drivers/ide/it8172.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/it8172.c 2011-11-16 18:39:07.000000000 -0500 +@@ -115,7 +115,7 @@ static const struct ide_port_ops it8172_ + .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 -urNp linux-3.1.1/drivers/ide/it8213.c linux-3.1.1/drivers/ide/it8213.c +--- linux-3.1.1/drivers/ide/it8213.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/it8213.c 2011-11-16 18:39:07.000000000 -0500 +@@ -156,7 +156,7 @@ static const struct ide_port_ops it8213_ + .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 -urNp linux-3.1.1/drivers/ide/it821x.c linux-3.1.1/drivers/ide/it821x.c +--- linux-3.1.1/drivers/ide/it821x.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/it821x.c 2011-11-16 18:39:07.000000000 -0500 +@@ -630,7 +630,7 @@ static const struct ide_port_ops it821x_ + .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 -urNp linux-3.1.1/drivers/ide/jmicron.c linux-3.1.1/drivers/ide/jmicron.c +--- linux-3.1.1/drivers/ide/jmicron.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/jmicron.c 2011-11-16 18:39:07.000000000 -0500 +@@ -102,7 +102,7 @@ static const struct ide_port_ops jmicron + .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 -urNp linux-3.1.1/drivers/ide/ns87415.c linux-3.1.1/drivers/ide/ns87415.c +--- linux-3.1.1/drivers/ide/ns87415.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/ns87415.c 2011-11-16 18:39:07.000000000 -0500 +@@ -293,7 +293,7 @@ static const struct ide_dma_ops ns87415_ + .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 -urNp linux-3.1.1/drivers/ide/opti621.c linux-3.1.1/drivers/ide/opti621.c +--- linux-3.1.1/drivers/ide/opti621.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/opti621.c 2011-11-16 18:39:07.000000000 -0500 +@@ -131,7 +131,7 @@ static const struct ide_port_ops opti621 + .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 -urNp linux-3.1.1/drivers/ide/pdc202xx_new.c linux-3.1.1/drivers/ide/pdc202xx_new.c +--- linux-3.1.1/drivers/ide/pdc202xx_new.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/pdc202xx_new.c 2011-11-16 18:39:07.000000000 -0500 +@@ -465,7 +465,7 @@ static const struct ide_port_ops pdcnew_ + .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 -urNp linux-3.1.1/drivers/ide/pdc202xx_old.c linux-3.1.1/drivers/ide/pdc202xx_old.c +--- linux-3.1.1/drivers/ide/pdc202xx_old.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/pdc202xx_old.c 2011-11-16 18:39:07.000000000 -0500 +@@ -270,7 +270,7 @@ static const struct ide_dma_ops pdc2026x + .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 -urNp linux-3.1.1/drivers/ide/piix.c linux-3.1.1/drivers/ide/piix.c +--- linux-3.1.1/drivers/ide/piix.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/piix.c 2011-11-16 18:39:07.000000000 -0500 +@@ -344,7 +344,7 @@ static const struct ide_port_ops ich_por + .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 -urNp linux-3.1.1/drivers/ide/rz1000.c linux-3.1.1/drivers/ide/rz1000.c +--- linux-3.1.1/drivers/ide/rz1000.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/rz1000.c 2011-11-16 18:39:07.000000000 -0500 +@@ -38,7 +38,7 @@ static int __devinit rz1000_disable_read + } + } + +-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 -urNp linux-3.1.1/drivers/ide/sc1200.c linux-3.1.1/drivers/ide/sc1200.c +--- linux-3.1.1/drivers/ide/sc1200.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/sc1200.c 2011-11-16 18:39:07.000000000 -0500 +@@ -291,7 +291,7 @@ static const struct ide_dma_ops sc1200_d + .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 -urNp linux-3.1.1/drivers/ide/scc_pata.c linux-3.1.1/drivers/ide/scc_pata.c +--- linux-3.1.1/drivers/ide/scc_pata.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/scc_pata.c 2011-11-16 18:39:07.000000000 -0500 +@@ -811,7 +811,7 @@ static const struct ide_dma_ops scc_dma_ + .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 -urNp linux-3.1.1/drivers/ide/serverworks.c linux-3.1.1/drivers/ide/serverworks.c +--- linux-3.1.1/drivers/ide/serverworks.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/serverworks.c 2011-11-16 18:39:07.000000000 -0500 +@@ -337,7 +337,7 @@ static const struct ide_port_ops svwks_p + .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 -urNp linux-3.1.1/drivers/ide/setup-pci.c linux-3.1.1/drivers/ide/setup-pci.c +--- linux-3.1.1/drivers/ide/setup-pci.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/setup-pci.c 2011-11-16 18:40:10.000000000 -0500 +@@ -542,6 +542,8 @@ int ide_pci_init_two(struct pci_dev *dev + int ret, i, n_ports = dev2 ? 4 : 2; + struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL }; + ++ pax_track_stack(); ++ + for (i = 0; i < n_ports / 2; i++) { + ret = ide_setup_pci_controller(pdev[i], d, !i); + if (ret < 0) +diff -urNp linux-3.1.1/drivers/ide/siimage.c linux-3.1.1/drivers/ide/siimage.c +--- linux-3.1.1/drivers/ide/siimage.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/siimage.c 2011-11-16 18:39:07.000000000 -0500 +@@ -719,7 +719,7 @@ static const struct ide_dma_ops sil_dma_ + .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 -urNp linux-3.1.1/drivers/ide/sis5513.c linux-3.1.1/drivers/ide/sis5513.c +--- linux-3.1.1/drivers/ide/sis5513.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/sis5513.c 2011-11-16 18:39:07.000000000 -0500 +@@ -563,7 +563,7 @@ static const struct ide_port_ops sis_ata + .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 -urNp linux-3.1.1/drivers/ide/sl82c105.c linux-3.1.1/drivers/ide/sl82c105.c +--- linux-3.1.1/drivers/ide/sl82c105.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/sl82c105.c 2011-11-16 18:39:07.000000000 -0500 +@@ -299,7 +299,7 @@ static const struct ide_dma_ops sl82c105 + .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 -urNp linux-3.1.1/drivers/ide/slc90e66.c linux-3.1.1/drivers/ide/slc90e66.c +--- linux-3.1.1/drivers/ide/slc90e66.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/slc90e66.c 2011-11-16 18:39:07.000000000 -0500 +@@ -132,7 +132,7 @@ static const struct ide_port_ops slc90e6 + .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 -urNp linux-3.1.1/drivers/ide/tc86c001.c linux-3.1.1/drivers/ide/tc86c001.c +--- linux-3.1.1/drivers/ide/tc86c001.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/tc86c001.c 2011-11-16 18:39:07.000000000 -0500 +@@ -191,7 +191,7 @@ static const struct ide_dma_ops tc86c001 + .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 -urNp linux-3.1.1/drivers/ide/triflex.c linux-3.1.1/drivers/ide/triflex.c +--- linux-3.1.1/drivers/ide/triflex.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/triflex.c 2011-11-16 18:39:07.000000000 -0500 +@@ -92,7 +92,7 @@ static const struct ide_port_ops triflex + .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 -urNp linux-3.1.1/drivers/ide/trm290.c linux-3.1.1/drivers/ide/trm290.c +--- linux-3.1.1/drivers/ide/trm290.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/trm290.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/ide/via82cxxx.c linux-3.1.1/drivers/ide/via82cxxx.c +--- linux-3.1.1/drivers/ide/via82cxxx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/ide/via82cxxx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -403,7 +403,7 @@ static const struct ide_port_ops via_por + .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 -urNp linux-3.1.1/drivers/infiniband/core/cm.c linux-3.1.1/drivers/infiniband/core/cm.c +--- linux-3.1.1/drivers/infiniband/core/cm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/core/cm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -113,7 +113,7 @@ static char const counter_group_names[CM + + 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 { +@@ -1387,7 +1387,7 @@ static void cm_dup_req_handler(struct cm + 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. */ +@@ -1765,7 +1765,7 @@ static void cm_dup_rep_handler(struct cm + 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) +@@ -1932,7 +1932,7 @@ static int cm_rtu_handler(struct cm_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; + } +@@ -2115,7 +2115,7 @@ static int cm_dreq_handler(struct cm_wor + 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; +@@ -2140,7 +2140,7 @@ static int cm_dreq_handler(struct cm_wor + 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; +@@ -2154,7 +2154,7 @@ static int cm_dreq_handler(struct cm_wor + 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: +@@ -2521,7 +2521,7 @@ static int cm_mra_handler(struct cm_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; +@@ -2530,7 +2530,7 @@ static int cm_mra_handler(struct cm_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: +@@ -2692,7 +2692,7 @@ static int cm_lap_handler(struct cm_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; +@@ -2708,7 +2708,7 @@ static int cm_lap_handler(struct cm_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: +@@ -2992,7 +2992,7 @@ static int cm_sidr_req_handler(struct cm + 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. */ + } +@@ -3204,10 +3204,10 @@ static void cm_send_handler(struct ib_ma + 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]); + +@@ -3417,7 +3417,7 @@ static void cm_recv_handler(struct ib_ma + } + + 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, +@@ -3615,7 +3615,7 @@ static ssize_t cm_show_counter(struct ko + 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 -urNp linux-3.1.1/drivers/infiniband/core/fmr_pool.c linux-3.1.1/drivers/infiniband/core/fmr_pool.c +--- linux-3.1.1/drivers/infiniband/core/fmr_pool.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/core/fmr_pool.c 2011-11-16 18:39:07.000000000 -0500 +@@ -97,8 +97,8 @@ 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; + }; +@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *p + 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) +@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *p + } + + 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); +@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(s + 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, +@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_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; +@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_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 -urNp linux-3.1.1/drivers/infiniband/hw/cxgb4/mem.c linux-3.1.1/drivers/infiniband/hw/cxgb4/mem.c +--- linux-3.1.1/drivers/infiniband/hw/cxgb4/mem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/cxgb4/mem.c 2011-11-16 18:39:07.000000000 -0500 +@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_r + 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_r + &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 -urNp linux-3.1.1/drivers/infiniband/hw/ipath/ipath_fs.c linux-3.1.1/drivers/infiniband/hw/ipath/ipath_fs.c +--- linux-3.1.1/drivers/infiniband/hw/ipath/ipath_fs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/ipath/ipath_fs.c 2011-11-16 18:40:10.000000000 -0500 +@@ -113,6 +113,8 @@ static ssize_t atomic_counters_read(stru + struct infinipath_counters counters; + struct ipath_devdata *dd; + ++ pax_track_stack(); ++ + dd = file->f_path.dentry->d_inode->i_private; + dd->ipath_f_read_counters(dd, &counters); + +diff -urNp linux-3.1.1/drivers/infiniband/hw/ipath/ipath_rc.c linux-3.1.1/drivers/infiniband/hw/ipath/ipath_rc.c +--- linux-3.1.1/drivers/infiniband/hw/ipath/ipath_rc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/ipath/ipath_rc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *de + 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 *de + 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 -urNp linux-3.1.1/drivers/infiniband/hw/ipath/ipath_ruc.c linux-3.1.1/drivers/infiniband/hw/ipath/ipath_ruc.c +--- linux-3.1.1/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ip + 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 -urNp linux-3.1.1/drivers/infiniband/hw/nes/nes.c linux-3.1.1/drivers/infiniband/hw/nes/nes.c +--- linux-3.1.1/drivers/infiniband/hw/nes/nes.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/nes/nes.c 2011-11-16 18:39:07.000000000 -0500 +@@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limi + 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; +@@ -275,7 +275,7 @@ static void nes_cqp_rem_ref_callback(str + 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 -urNp linux-3.1.1/drivers/infiniband/hw/nes/nes_cm.c linux-3.1.1/drivers/infiniband/hw/nes/nes_cm.c +--- linux-3.1.1/drivers/infiniband/hw/nes/nes_cm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/nes/nes_cm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 *); +@@ -151,13 +151,13 @@ 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; + + + /** +@@ -1045,7 +1045,7 @@ static int mini_cm_dec_refcnt_listen(str + 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); + } +@@ -1240,7 +1240,7 @@ static struct nes_cm_node *make_cm_node( + 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; + } +@@ -1298,7 +1298,7 @@ static int rem_ref_cm_node(struct nes_cm + } + + 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; +@@ -1365,7 +1365,7 @@ static int process_options(struct nes_cm + + 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); + } + +@@ -1428,7 +1428,7 @@ static void handle_rst_pkt(struct nes_cm + { + + 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)); +@@ -2057,7 +2057,7 @@ static struct nes_cm_node *mini_cm_conne + 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; +@@ -2332,7 +2332,7 @@ static int mini_cm_recv_pkt(struct nes_c + add_ref_cm_node(cm_node); + } else if (cm_node->state == NES_CM_STATE_TSA) { + 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; + } +@@ -2638,7 +2638,7 @@ static int nes_cm_disconn_true(struct ne + + 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; +@@ -2660,7 +2660,7 @@ static int nes_cm_disconn_true(struct ne + } + + if (issue_close) { +- atomic_inc(&cm_closes); ++ atomic_inc_unchecked(&cm_closes); + nes_disconnect(nesqp, 1); + + cm_id->provider_data = nesqp; +@@ -2791,7 +2791,7 @@ int nes_accept(struct iw_cm_id *cm_id, s + + 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)); +@@ -3001,7 +3001,7 @@ int nes_reject(struct iw_cm_id *cm_id, c + + struct nes_cm_core *cm_core; + +- 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; +@@ -3067,7 +3067,7 @@ int nes_connect(struct iw_cm_id *cm_id, + 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 */ +@@ -3173,7 +3173,7 @@ int nes_create_listen(struct iw_cm_id *c + 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); +@@ -3278,7 +3278,7 @@ static void cm_event_connected(struct ne + 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, +@@ -3493,7 +3493,7 @@ static void cm_event_reset(struct nes_cm + + 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; +@@ -3529,7 +3529,7 @@ static void cm_event_mpa_req(struct nes_ + 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); + +@@ -3567,7 +3567,7 @@ static void cm_event_mpa_reject(struct n + 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 -urNp linux-3.1.1/drivers/infiniband/hw/nes/nes.h linux-3.1.1/drivers/infiniband/hw/nes/nes.h +--- linux-3.1.1/drivers/infiniband/hw/nes/nes.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/nes/nes.h 2011-11-16 18:39:07.000000000 -0500 +@@ -175,17 +175,17 @@ 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; +@@ -194,14 +194,14 @@ 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_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 u32 int_mod_timer_init; + extern u32 int_mod_cq_depth_256; +diff -urNp linux-3.1.1/drivers/infiniband/hw/nes/nes_nic.c linux-3.1.1/drivers/infiniband/hw/nes/nes_nic.c +--- linux-3.1.1/drivers/infiniband/hw/nes/nes_nic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/nes/nes_nic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1274,31 +1274,31 @@ static void nes_netdev_get_ethtool_stats + 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; +diff -urNp linux-3.1.1/drivers/infiniband/hw/nes/nes_verbs.c linux-3.1.1/drivers/infiniband/hw/nes/nes_verbs.c +--- linux-3.1.1/drivers/infiniband/hw/nes/nes_verbs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/nes/nes_verbs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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(struc + 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 * + struct iw_cm_event cm_event; + int ret; + +- atomic_inc(&sw_qps_destroyed); ++ atomic_inc_unchecked(&sw_qps_destroyed); + nesqp->destroyed = 1; + + /* Blow away the connection if it exists. */ +diff -urNp linux-3.1.1/drivers/infiniband/hw/qib/qib.h linux-3.1.1/drivers/infiniband/hw/qib/qib.h +--- linux-3.1.1/drivers/infiniband/hw/qib/qib.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/infiniband/hw/qib/qib.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/input/gameport/gameport.c linux-3.1.1/drivers/input/gameport/gameport.c +--- linux-3.1.1/drivers/input/gameport/gameport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/gameport/gameport.c 2011-11-16 18:39:07.000000000 -0500 +@@ -488,14 +488,14 @@ 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 -urNp linux-3.1.1/drivers/input/input.c linux-3.1.1/drivers/input/input.c +--- linux-3.1.1/drivers/input/input.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/input.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struc + */ + 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_d + 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 -urNp linux-3.1.1/drivers/input/joystick/sidewinder.c linux-3.1.1/drivers/input/joystick/sidewinder.c +--- linux-3.1.1/drivers/input/joystick/sidewinder.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/joystick/sidewinder.c 2011-11-16 18:40:10.000000000 -0500 +@@ -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> +@@ -428,6 +429,8 @@ static int sw_read(struct sw *sw) + unsigned char buf[SW_LENGTH]; + int i; + ++ pax_track_stack(); ++ + i = sw_read_packet(sw->gameport, buf, sw->length, 0); + + if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */ +diff -urNp linux-3.1.1/drivers/input/joystick/xpad.c linux-3.1.1/drivers/input/joystick/xpad.c +--- linux-3.1.1/drivers/input/joystick/xpad.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/joystick/xpad.c 2011-11-16 18:39:07.000000000 -0500 +@@ -710,7 +710,7 @@ static void xpad_led_set(struct led_clas + + 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_xpa + 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 -urNp linux-3.1.1/drivers/input/mousedev.c linux-3.1.1/drivers/input/mousedev.c +--- linux-3.1.1/drivers/input/mousedev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/mousedev.c 2011-11-16 18:39:07.000000000 -0500 +@@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file + + 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 -urNp linux-3.1.1/drivers/input/serio/serio.c linux-3.1.1/drivers/input/serio/serio.c +--- linux-3.1.1/drivers/input/serio/serio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/input/serio/serio.c 2011-11-16 18:39:07.000000000 -0500 +@@ -497,7 +497,7 @@ static void serio_release_port(struct de + */ + 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); + +@@ -508,7 +508,7 @@ static void serio_init_port(struct 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 -urNp linux-3.1.1/drivers/isdn/capi/capi.c linux-3.1.1/drivers/isdn/capi/capi.c +--- linux-3.1.1/drivers/isdn/capi/capi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/capi/capi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 *m + 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 cap + 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 -urNp linux-3.1.1/drivers/isdn/gigaset/common.c linux-3.1.1/drivers/isdn/gigaset/common.c +--- linux-3.1.1/drivers/isdn/gigaset/common.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/gigaset/common.c 2011-11-16 18:39:07.000000000 -0500 +@@ -723,7 +723,7 @@ struct cardstate *gigaset_initcs(struct + cs->commands_pending = 0; + cs->cur_at_seq = 0; + cs->gotfwver = -1; +- cs->open_count = 0; ++ local_set(&cs->open_count, 0); + cs->dev = NULL; + cs->tty = NULL; + cs->tty_dev = NULL; +diff -urNp linux-3.1.1/drivers/isdn/gigaset/gigaset.h linux-3.1.1/drivers/isdn/gigaset/gigaset.h +--- linux-3.1.1/drivers/isdn/gigaset/gigaset.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/gigaset/gigaset.h 2011-11-16 18:39:07.000000000 -0500 +@@ -35,6 +35,7 @@ + #include <linux/tty_driver.h> + #include <linux/list.h> + #include <linux/atomic.h> ++#include <asm/local.h> + + #define GIG_VERSION {0, 5, 0, 0} + #define GIG_COMPAT {0, 4, 0, 0} +@@ -433,7 +434,7 @@ struct cardstate { + spinlock_t cmdlock; + unsigned curlen, cmdbytes; + +- unsigned open_count; ++ local_t open_count; + struct tty_struct *tty; + struct tasklet_struct if_wake_tasklet; + unsigned control_state; +diff -urNp linux-3.1.1/drivers/isdn/gigaset/interface.c linux-3.1.1/drivers/isdn/gigaset/interface.c +--- linux-3.1.1/drivers/isdn/gigaset/interface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/gigaset/interface.c 2011-11-16 18:39:07.000000000 -0500 +@@ -162,9 +162,7 @@ static int if_open(struct tty_struct *tt + } + tty->driver_data = cs; + +- ++cs->open_count; +- +- if (cs->open_count == 1) { ++ if (local_inc_return(&cs->open_count) == 1) { + spin_lock_irqsave(&cs->lock, flags); + cs->tty = tty; + spin_unlock_irqrestore(&cs->lock, flags); +@@ -192,10 +190,10 @@ static void if_close(struct tty_struct * + + if (!cs->connected) + gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ +- else if (!cs->open_count) ++ else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else { +- if (!--cs->open_count) { ++ if (!local_dec_return(&cs->open_count)) { + spin_lock_irqsave(&cs->lock, flags); + cs->tty = NULL; + spin_unlock_irqrestore(&cs->lock, flags); +@@ -230,7 +228,7 @@ static int if_ioctl(struct tty_struct *t + if (!cs->connected) { + gig_dbg(DEBUG_IF, "not connected"); + retval = -ENODEV; +- } else if (!cs->open_count) ++ } else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else { + retval = 0; +@@ -360,7 +358,7 @@ static int if_write(struct tty_struct *t + retval = -ENODEV; + goto done; + } +- if (!cs->open_count) { ++ if (!local_read(&cs->open_count)) { + dev_warn(cs->dev, "%s: device not opened\n", __func__); + retval = -ENODEV; + goto done; +@@ -413,7 +411,7 @@ static int if_write_room(struct tty_stru + if (!cs->connected) { + gig_dbg(DEBUG_IF, "not connected"); + retval = -ENODEV; +- } else if (!cs->open_count) ++ } else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else if (cs->mstate != MS_LOCKED) { + dev_warn(cs->dev, "can't write to unlocked device\n"); +@@ -443,7 +441,7 @@ static int if_chars_in_buffer(struct tty + + if (!cs->connected) + gig_dbg(DEBUG_IF, "not connected"); +- else if (!cs->open_count) ++ else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else if (cs->mstate != MS_LOCKED) + dev_warn(cs->dev, "can't write to unlocked device\n"); +@@ -471,7 +469,7 @@ static void if_throttle(struct tty_struc + + if (!cs->connected) + gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ +- else if (!cs->open_count) ++ else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else + gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); +@@ -495,7 +493,7 @@ static void if_unthrottle(struct tty_str + + if (!cs->connected) + gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ +- else if (!cs->open_count) ++ else if (!local_read(&cs->open_count)) + dev_warn(cs->dev, "%s: device not opened\n", __func__); + else + gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); +@@ -526,7 +524,7 @@ static void if_set_termios(struct tty_st + goto out; + } + +- if (!cs->open_count) { ++ if (!local_read(&cs->open_count)) { + dev_warn(cs->dev, "%s: device not opened\n", __func__); + goto out; + } +diff -urNp linux-3.1.1/drivers/isdn/hardware/avm/b1.c linux-3.1.1/drivers/isdn/hardware/avm/b1.c +--- linux-3.1.1/drivers/isdn/hardware/avm/b1.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/avm/b1.c 2011-11-16 18:39:07.000000000 -0500 +@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capilo + } + 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, capilo + } + 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 -urNp linux-3.1.1/drivers/isdn/hardware/eicon/capidtmf.c linux-3.1.1/drivers/isdn/hardware/eicon/capidtmf.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/capidtmf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/capidtmf.c 2011-11-16 18:40:10.000000000 -0500 +@@ -498,6 +498,7 @@ void capidtmf_recv_block (t_capidtmf_sta + byte goertzel_result_buffer[CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT]; + short windowed_sample_buffer[CAPIDTMF_RECV_WINDOWED_SAMPLES]; + ++ pax_track_stack(); + + if (p_state->recv.state & CAPIDTMF_RECV_STATE_DTMF_ACTIVE) + { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/capifunc.c linux-3.1.1/drivers/isdn/hardware/eicon/capifunc.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/capifunc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/capifunc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1055,6 +1055,8 @@ static int divacapi_connect_didd(void) + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + ++ pax_track_stack(); ++ + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/diddfunc.c linux-3.1.1/drivers/isdn/hardware/eicon/diddfunc.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/diddfunc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/diddfunc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -54,6 +54,8 @@ static int DIVA_INIT_FUNCTION connect_di + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + ++ pax_track_stack(); ++ + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/divasfunc.c linux-3.1.1/drivers/isdn/hardware/eicon/divasfunc.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/divasfunc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/divasfunc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -160,6 +160,8 @@ static int DIVA_INIT_FUNCTION connect_di + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + ++ pax_track_stack(); ++ + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/divasync.h linux-3.1.1/drivers/isdn/hardware/eicon/divasync.h +--- linux-3.1.1/drivers/isdn/hardware/eicon/divasync.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/divasync.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/isdn/hardware/eicon/idifunc.c linux-3.1.1/drivers/isdn/hardware/eicon/idifunc.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/idifunc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/idifunc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -188,6 +188,8 @@ static int DIVA_INIT_FUNCTION connect_di + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + ++ pax_track_stack(); ++ + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/message.c linux-3.1.1/drivers/isdn/hardware/eicon/message.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/message.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/message.c 2011-11-16 18:40:10.000000000 -0500 +@@ -4886,6 +4886,8 @@ static void sig_ind(PLCI *plci) + dword d; + word w; + ++ pax_track_stack(); ++ + a = plci->adapter; + Id = ((word)plci->Id<<8)|a->Id; + PUT_WORD(&SS_Ind[4],0x0000); +@@ -7480,6 +7482,8 @@ static word add_b1(PLCI *plci, API_PARSE + word j, n, w; + dword d; + ++ pax_track_stack(); ++ + + for(i=0;i<8;i++) bp_parms[i].length = 0; + for(i=0;i<2;i++) global_config[i].length = 0; +@@ -7954,6 +7958,8 @@ static word add_b23(PLCI *plci, API_PARS + const byte llc3[] = {4,3,2,2,6,6,0}; + const byte header[] = {0,2,3,3,0,0,0}; + ++ pax_track_stack(); ++ + for(i=0;i<8;i++) bp_parms[i].length = 0; + for(i=0;i<6;i++) b2_config_parms[i].length = 0; + for(i=0;i<5;i++) b3_config_parms[i].length = 0; +@@ -14741,6 +14747,8 @@ static void group_optimization(DIVA_CAPI + word appl_number_group_type[MAX_APPL]; + PLCI *auxplci; + ++ pax_track_stack(); ++ + set_group_ind_mask (plci); /* all APPLs within this inc. call are allowed to dial in */ + + if(!a->group_optimization_enabled) +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/mntfunc.c linux-3.1.1/drivers/isdn/hardware/eicon/mntfunc.c +--- linux-3.1.1/drivers/isdn/hardware/eicon/mntfunc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/mntfunc.c 2011-11-16 18:40:10.000000000 -0500 +@@ -79,6 +79,8 @@ static int DIVA_INIT_FUNCTION connect_di + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + ++ pax_track_stack(); ++ + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { +diff -urNp linux-3.1.1/drivers/isdn/hardware/eicon/xdi_adapter.h linux-3.1.1/drivers/isdn/hardware/eicon/xdi_adapter.h +--- linux-3.1.1/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/isdn/i4l/isdn_common.c linux-3.1.1/drivers/isdn/i4l/isdn_common.c +--- linux-3.1.1/drivers/isdn/i4l/isdn_common.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/i4l/isdn_common.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1286,6 +1286,8 @@ isdn_ioctl(struct file *file, uint cmd, + } iocpar; + void __user *argp = (void __user *)arg; + ++ pax_track_stack(); ++ + #define name iocpar.name + #define bname iocpar.bname + #define iocts iocpar.iocts +diff -urNp linux-3.1.1/drivers/isdn/icn/icn.c linux-3.1.1/drivers/isdn/icn/icn.c +--- linux-3.1.1/drivers/isdn/icn/icn.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/isdn/icn/icn.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char * buf, int len + 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 -urNp linux-3.1.1/drivers/lguest/core.c linux-3.1.1/drivers/lguest/core.c +--- linux-3.1.1/drivers/lguest/core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/lguest/core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/lguest/x86/core.c linux-3.1.1/drivers/lguest/x86/core.c +--- linux-3.1.1/drivers/lguest/x86/core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/lguest/x86/core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 + * 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 -urNp linux-3.1.1/drivers/lguest/x86/switcher_32.S linux-3.1.1/drivers/lguest/x86/switcher_32.S +--- linux-3.1.1/drivers/lguest/x86/switcher_32.S 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/lguest/x86/switcher_32.S 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/macintosh/macio_asic.c linux-3.1.1/drivers/macintosh/macio_asic.c +--- linux-3.1.1/drivers/macintosh/macio_asic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/macintosh/macio_asic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -748,7 +748,7 @@ static void __devexit macio_pci_remove(s + * 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 -urNp linux-3.1.1/drivers/md/dm.c linux-3.1.1/drivers/md/dm.c +--- linux-3.1.1/drivers/md/dm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/dm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -165,9 +165,9 @@ 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 */ + +@@ -1843,8 +1843,8 @@ static struct mapped_device *alloc_dev(i + 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); + +@@ -1978,7 +1978,7 @@ 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); + } + +@@ -2614,18 +2614,18 @@ int dm_kobject_uevent(struct mapped_devi + + 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 -urNp linux-3.1.1/drivers/md/dm-ioctl.c linux-3.1.1/drivers/md/dm-ioctl.c +--- linux-3.1.1/drivers/md/dm-ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/dm-ioctl.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1578,7 +1578,7 @@ static int validate_params(uint cmd, str + 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 -urNp linux-3.1.1/drivers/md/dm-raid1.c linux-3.1.1/drivers/md/dm-raid1.c +--- linux-3.1.1/drivers/md/dm-raid1.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/dm-raid1.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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(s + 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 + * 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(stru + 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 * + */ + 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)) +@@ -937,7 +937,7 @@ static int get_mirror(struct mirror_set + } + + 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; + +@@ -1347,7 +1347,7 @@ static void mirror_resume(struct dm_targ + */ + 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 -urNp linux-3.1.1/drivers/md/dm-stripe.c linux-3.1.1/drivers/md/dm-stripe.c +--- linux-3.1.1/drivers/md/dm-stripe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/dm-stripe.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 { +@@ -192,7 +192,7 @@ static int stripe_ctr(struct dm_target * + kfree(sc); + return r; + } +- atomic_set(&(sc->stripe[i].error_count), 0); ++ atomic_set_unchecked(&(sc->stripe[i].error_count), 0); + } + + ti->private = sc; +@@ -314,7 +314,7 @@ static int stripe_status(struct dm_targe + 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'; +@@ -361,8 +361,8 @@ static int stripe_end_io(struct dm_targe + */ + 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 -urNp linux-3.1.1/drivers/md/dm-table.c linux-3.1.1/drivers/md/dm-table.c +--- linux-3.1.1/drivers/md/dm-table.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/dm-table.c 2011-11-16 18:39:07.000000000 -0500 +@@ -389,7 +389,7 @@ static int device_area_is_invalid(struct + 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 -urNp linux-3.1.1/drivers/md/md.c linux-3.1.1/drivers/md/md.c +--- linux-3.1.1/drivers/md/md.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/md.c 2011-11-16 18:39:07.000000000 -0500 +@@ -280,10 +280,10 @@ 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(mddev_t *mddev) + { +- atomic_inc(&md_event_count); ++ atomic_inc_unchecked(&md_event_count); + wake_up(&md_event_waiters); + } + EXPORT_SYMBOL_GPL(md_new_event); +@@ -293,7 +293,7 @@ EXPORT_SYMBOL_GPL(md_new_event); + */ + static void md_new_event_inintr(mddev_t *mddev) + { +- atomic_inc(&md_event_count); ++ atomic_inc_unchecked(&md_event_count); + wake_up(&md_event_waiters); + } + +@@ -1531,7 +1531,7 @@ static int super_1_load(mdk_rdev_t *rdev + + 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; +@@ -1748,7 +1748,7 @@ static void super_1_sync(mddev_t *mddev, + 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); +@@ -2643,7 +2643,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_sho + static ssize_t + errors_show(mdk_rdev_t *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 +@@ -2652,7 +2652,7 @@ errors_store(mdk_rdev_t *rdev, const cha + 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; +@@ -3042,8 +3042,8 @@ int md_rdev_init(mdk_rdev_t *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); +@@ -6667,7 +6667,7 @@ static int md_seq_show(struct seq_file * + + 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) { +@@ -6756,7 +6756,7 @@ static int md_seq_show(struct seq_file * + 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"); +@@ -6787,7 +6787,7 @@ static int md_seq_open(struct inode *ino + 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; + } + +@@ -6801,7 +6801,7 @@ static unsigned int mdstat_poll(struct f + /* 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; + } +@@ -6845,7 +6845,7 @@ static int is_mddev_idle(mddev_t *mddev, + 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 -urNp linux-3.1.1/drivers/md/md.h linux-3.1.1/drivers/md/md.h +--- linux-3.1.1/drivers/md/md.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/md.h 2011-11-16 18:39:07.000000000 -0500 +@@ -124,13 +124,13 @@ struct mdk_rdev_s + * 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. + */ +@@ -415,7 +415,7 @@ static inline void rdev_dec_pending(mdk_ + + 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 mdk_personality +diff -urNp linux-3.1.1/drivers/md/raid10.c linux-3.1.1/drivers/md/raid10.c +--- linux-3.1.1/drivers/md/raid10.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/raid10.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1423,7 +1423,7 @@ static void end_sync_read(struct bio *bi + /* 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. +@@ -1723,7 +1723,7 @@ static void check_decay_read_errors(mdde + { + 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); + +@@ -1745,9 +1745,9 @@ static void check_decay_read_errors(mdde + * 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(mdk_rdev_t *rdev, sector_t sector, +@@ -1797,8 +1797,8 @@ static void fix_read_error(conf_t *conf, + 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); + +@@ -1806,7 +1806,7 @@ static void fix_read_error(conf_t *conf, + "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); +@@ -1951,7 +1951,7 @@ static void fix_read_error(conf_t *conf, + (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 -urNp linux-3.1.1/drivers/md/raid1.c linux-3.1.1/drivers/md/raid1.c +--- linux-3.1.1/drivers/md/raid1.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/raid1.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1541,7 +1541,7 @@ static int fix_sync_read_error(r1bio_t * + 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; +@@ -1754,7 +1754,7 @@ static void fix_read_error(conf_t *conf, + 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 -urNp linux-3.1.1/drivers/md/raid5.c linux-3.1.1/drivers/md/raid5.c +--- linux-3.1.1/drivers/md/raid5.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/md/raid5.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1616,19 +1616,19 @@ static void raid5_end_read_request(struc + (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(&conf->disks[i].rdev->read_errors)) +- atomic_set(&conf->disks[i].rdev->read_errors, 0); ++ if (atomic_read_unchecked(&conf->disks[i].rdev->read_errors)) ++ atomic_set_unchecked(&conf->disks[i].rdev->read_errors, 0); + } else { + const char *bdn = bdevname(conf->disks[i].rdev->bdev, b); + int retry = 0; + rdev = conf->disks[i].rdev; + + clear_bit(R5_UPTODATE, &sh->dev[i].flags); +- atomic_inc(&rdev->read_errors); ++ atomic_inc_unchecked(&rdev->read_errors); + if (conf->mddev->degraded >= conf->max_degraded) + printk_ratelimited( + KERN_WARNING +@@ -1648,7 +1648,7 @@ static void raid5_end_read_request(struc + (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", +@@ -1978,6 +1978,7 @@ static sector_t compute_blocknr(struct s + sector_t r_sector; + struct stripe_head sh2; + ++ pax_track_stack(); + + chunk_offset = sector_div(new_sector, sectors_per_chunk); + stripe = new_sector; +diff -urNp linux-3.1.1/drivers/media/common/saa7146_hlp.c linux-3.1.1/drivers/media/common/saa7146_hlp.c +--- linux-3.1.1/drivers/media/common/saa7146_hlp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/common/saa7146_hlp.c 2011-11-16 18:40:10.000000000 -0500 +@@ -353,6 +353,8 @@ static void calculate_clipping_registers + + int x[32], y[32], w[32], h[32]; + ++ pax_track_stack(); ++ + /* clear out memory */ + memset(&line_list[0], 0x00, sizeof(u32)*32); + memset(&pixel_list[0], 0x00, sizeof(u32)*32); +diff -urNp linux-3.1.1/drivers/media/dvb/ddbridge/ddbridge-core.c linux-3.1.1/drivers/media/dvb/ddbridge/ddbridge-core.c +--- linux-3.1.1/drivers/media/dvb/ddbridge/ddbridge-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/ddbridge/ddbridge-core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1675,7 +1675,7 @@ 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 -urNp linux-3.1.1/drivers/media/dvb/dvb-core/dvb_ca_en50221.c linux-3.1.1/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +--- linux-3.1.1/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-11-16 18:40:10.000000000 -0500 +@@ -590,6 +590,8 @@ static int dvb_ca_en50221_read_data(stru + u8 buf[HOST_LINK_BUF_SIZE]; + int i; + ++ pax_track_stack(); ++ + dprintk("%s\n", __func__); + + /* check if we have space for a link buf in the rx_buffer */ +@@ -1285,6 +1287,8 @@ static ssize_t dvb_ca_en50221_io_write(s + unsigned long timeout; + int written; + ++ pax_track_stack(); ++ + dprintk("%s\n", __func__); + + /* Incoming packet has a 2 byte header. hdr[0] = slot_id, hdr[1] = connection_id */ +diff -urNp linux-3.1.1/drivers/media/dvb/dvb-core/dvb_demux.h linux-3.1.1/drivers/media/dvb/dvb-core/dvb_demux.h +--- linux-3.1.1/drivers/media/dvb/dvb-core/dvb_demux.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-core/dvb_demux.h 2011-11-17 18:34:32.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/media/dvb/dvb-core/dvbdev.c linux-3.1.1/drivers/media/dvb/dvb-core/dvbdev.c +--- linux-3.1.1/drivers/media/dvb/dvb-core/dvbdev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-core/dvbdev.c 2011-11-16 18:39:07.000000000 -0500 +@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapt + 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 -urNp linux-3.1.1/drivers/media/dvb/dvb-usb/cxusb.c linux-3.1.1/drivers/media/dvb/dvb-usb/cxusb.c +--- linux-3.1.1/drivers/media/dvb/dvb-usb/cxusb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-usb/cxusb.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1059,7 +1059,7 @@ static struct dib0070_config dib7070p_di + struct dib0700_adapter_state { + int (*set_param_save) (struct dvb_frontend *, + struct dvb_frontend_parameters *); +-}; ++} __no_const; + + static int dib7070_set_param_override(struct dvb_frontend *fe, + struct dvb_frontend_parameters *fep) +diff -urNp linux-3.1.1/drivers/media/dvb/dvb-usb/dib0700_core.c linux-3.1.1/drivers/media/dvb/dvb-usb/dib0700_core.c +--- linux-3.1.1/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-11-16 18:40:10.000000000 -0500 +@@ -478,6 +478,8 @@ int dib0700_download_firmware(struct usb + if (!buf) + return -ENOMEM; + ++ pax_track_stack(); ++ + while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) { + deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n", + hx.addr, hx.len, hx.chk); +diff -urNp linux-3.1.1/drivers/media/dvb/dvb-usb/dw2102.c linux-3.1.1/drivers/media/dvb/dvb-usb/dw2102.c +--- linux-3.1.1/drivers/media/dvb/dvb-usb/dw2102.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-usb/dw2102.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/media/dvb/dvb-usb/lmedm04.c linux-3.1.1/drivers/media/dvb/dvb-usb/lmedm04.c +--- linux-3.1.1/drivers/media/dvb/dvb-usb/lmedm04.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/dvb-usb/lmedm04.c 2011-11-16 18:40:10.000000000 -0500 +@@ -742,6 +742,7 @@ static int lme2510_download_firmware(str + usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x06, 0x80, 0x0200, 0x00, data, 0x0109, 1000); + ++ pax_track_stack(); + + data[0] = 0x8a; + len_in = 1; +@@ -764,6 +765,8 @@ static void lme_coldreset(struct usb_dev + int ret = 0, len_in; + u8 data[512] = {0}; + ++ pax_track_stack(); ++ + data[0] = 0x0a; + len_in = 1; + info("FRM Firmware Cold Reset"); +diff -urNp linux-3.1.1/drivers/media/dvb/frontends/dib3000.h linux-3.1.1/drivers/media/dvb/frontends/dib3000.h +--- linux-3.1.1/drivers/media/dvb/frontends/dib3000.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/frontends/dib3000.h 2011-11-17 18:38:05.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/media/dvb/frontends/mb86a16.c linux-3.1.1/drivers/media/dvb/frontends/mb86a16.c +--- linux-3.1.1/drivers/media/dvb/frontends/mb86a16.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/frontends/mb86a16.c 2011-11-16 18:40:10.000000000 -0500 +@@ -1060,6 +1060,8 @@ static int mb86a16_set_fe(struct mb86a16 + int ret = -1; + int sync; + ++ pax_track_stack(); ++ + dprintk(verbose, MB86A16_INFO, 1, "freq=%d Mhz, symbrt=%d Ksps", state->frequency, state->srate); + + fcp = 3000; +diff -urNp linux-3.1.1/drivers/media/dvb/frontends/or51211.c linux-3.1.1/drivers/media/dvb/frontends/or51211.c +--- linux-3.1.1/drivers/media/dvb/frontends/or51211.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/frontends/or51211.c 2011-11-16 18:40:10.000000000 -0500 +@@ -113,6 +113,8 @@ static int or51211_load_firmware (struct + u8 tudata[585]; + int i; + ++ pax_track_stack(); ++ + dprintk("Firmware is %zd bytes\n",fw->size); + + /* Get eprom data */ +diff -urNp linux-3.1.1/drivers/media/dvb/ngene/ngene-cards.c linux-3.1.1/drivers/media/dvb/ngene/ngene-cards.c +--- linux-3.1.1/drivers/media/dvb/ngene/ngene-cards.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/dvb/ngene/ngene-cards.c 2011-11-16 18:39:07.000000000 -0500 +@@ -477,7 +477,7 @@ 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 -urNp linux-3.1.1/drivers/media/radio/radio-cadet.c linux-3.1.1/drivers/media/radio/radio-cadet.c +--- linux-3.1.1/drivers/media/radio/radio-cadet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/radio/radio-cadet.c 2011-11-16 18:39:07.000000000 -0500 +@@ -326,6 +326,8 @@ static ssize_t cadet_read(struct file *f + 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; +diff -urNp linux-3.1.1/drivers/media/video/au0828/au0828.h linux-3.1.1/drivers/media/video/au0828/au0828.h +--- linux-3.1.1/drivers/media/video/au0828/au0828.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/au0828/au0828.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/media/video/cx18/cx18-driver.c linux-3.1.1/drivers/media/video/cx18/cx18-driver.c +--- linux-3.1.1/drivers/media/video/cx18/cx18-driver.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/cx18/cx18-driver.c 2011-11-16 18:40:10.000000000 -0500 +@@ -327,6 +327,8 @@ void cx18_read_eeprom(struct cx18 *cx, s + struct i2c_client c; + u8 eedata[256]; + ++ pax_track_stack(); ++ + memset(&c, 0, sizeof(c)); + strlcpy(c.name, "cx18 tveeprom tmp", sizeof(c.name)); + c.adapter = &cx->i2c_adap[0]; +diff -urNp linux-3.1.1/drivers/media/video/cx23885/cx23885-input.c linux-3.1.1/drivers/media/video/cx23885/cx23885-input.c +--- linux-3.1.1/drivers/media/video/cx23885/cx23885-input.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/cx23885/cx23885-input.c 2011-11-16 18:40:10.000000000 -0500 +@@ -53,6 +53,8 @@ static void cx23885_input_process_measur + bool handle = false; + struct ir_raw_event ir_core_event[64]; + ++ pax_track_stack(); ++ + do { + num = 0; + v4l2_subdev_call(dev->sd_ir, ir, rx_read, (u8 *) ir_core_event, +diff -urNp linux-3.1.1/drivers/media/video/cx88/cx88-alsa.c linux-3.1.1/drivers/media/video/cx88/cx88-alsa.c +--- linux-3.1.1/drivers/media/video/cx88/cx88-alsa.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/cx88/cx88-alsa.c 2011-11-16 18:39:07.000000000 -0500 +@@ -766,7 +766,7 @@ static struct snd_kcontrol_new snd_cx88_ + * 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 -urNp linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-eeprom.c linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-eeprom.c +--- linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-11-16 18:40:10.000000000 -0500 +@@ -120,6 +120,8 @@ int pvr2_eeprom_analyze(struct pvr2_hdw + u8 *eeprom; + struct tveeprom tvdata; + ++ pax_track_stack(); ++ + memset(&tvdata,0,sizeof(tvdata)); + + eeprom = pvr2_eeprom_fetch(hdw); +diff -urNp linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +--- linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/media/video/saa7134/saa6752hs.c linux-3.1.1/drivers/media/video/saa7134/saa6752hs.c +--- linux-3.1.1/drivers/media/video/saa7134/saa6752hs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/saa7134/saa6752hs.c 2011-11-16 18:40:10.000000000 -0500 +@@ -682,6 +682,8 @@ static int saa6752hs_init(struct v4l2_su + unsigned char localPAT[256]; + unsigned char localPMT[256]; + ++ pax_track_stack(); ++ + /* Set video format - must be done first as it resets other settings */ + set_reg8(client, 0x41, h->video_format); + +diff -urNp linux-3.1.1/drivers/media/video/saa7164/saa7164-cmd.c linux-3.1.1/drivers/media/video/saa7164/saa7164-cmd.c +--- linux-3.1.1/drivers/media/video/saa7164/saa7164-cmd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/saa7164/saa7164-cmd.c 2011-11-16 18:40:10.000000000 -0500 +@@ -88,6 +88,8 @@ int saa7164_irq_dequeue(struct saa7164_d + u8 tmp[512]; + dprintk(DBGLVL_CMD, "%s()\n", __func__); + ++ pax_track_stack(); ++ + /* While any outstand message on the bus exists... */ + do { + +@@ -141,6 +143,8 @@ int saa7164_cmd_dequeue(struct saa7164_d + u8 tmp[512]; + dprintk(DBGLVL_CMD, "%s()\n", __func__); + ++ pax_track_stack(); ++ + while (loop) { + + struct tmComResInfo tRsp = { 0, 0, 0, 0, 0, 0 }; +diff -urNp linux-3.1.1/drivers/media/video/timblogiw.c linux-3.1.1/drivers/media/video/timblogiw.c +--- linux-3.1.1/drivers/media/video/timblogiw.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/timblogiw.c 2011-11-17 18:36:32.000000000 -0500 +@@ -744,7 +744,7 @@ static int timblogiw_mmap(struct file *f + + /* 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, +@@ -766,7 +766,7 @@ static __devinitconst struct v4l2_ioctl_ + .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 -urNp linux-3.1.1/drivers/media/video/usbvision/usbvision-core.c linux-3.1.1/drivers/media/video/usbvision/usbvision-core.c +--- linux-3.1.1/drivers/media/video/usbvision/usbvision-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/usbvision/usbvision-core.c 2011-11-16 18:40:10.000000000 -0500 +@@ -707,6 +707,8 @@ static enum parse_state usbvision_parse_ + unsigned char rv, gv, bv; + static unsigned char *Y, *U, *V; + ++ pax_track_stack(); ++ + frame = usbvision->cur_frame; + image_size = frame->frmwidth * frame->frmheight; + if ((frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || +diff -urNp linux-3.1.1/drivers/media/video/videobuf-dma-sg.c linux-3.1.1/drivers/media/video/videobuf-dma-sg.c +--- linux-3.1.1/drivers/media/video/videobuf-dma-sg.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/media/video/videobuf-dma-sg.c 2011-11-16 18:40:10.000000000 -0500 +@@ -607,6 +607,8 @@ void *videobuf_sg_alloc(size_t size) + { + struct videobuf_queue q; + ++ pax_track_stack(); ++ + /* Required to make generic handler to call __videobuf_alloc */ + q.int_ops = &sg_ops; + +diff -urNp linux-3.1.1/drivers/message/fusion/mptbase.c linux-3.1.1/drivers/message/fusion/mptbase.c +--- linux-3.1.1/drivers/message/fusion/mptbase.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/fusion/mptbase.c 2011-11-16 18:40:10.000000000 -0500 +@@ -6681,8 +6681,13 @@ static int mpt_iocinfo_proc_show(struct + 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 -urNp linux-3.1.1/drivers/message/fusion/mptsas.c linux-3.1.1/drivers/message/fusion/mptsas.c +--- linux-3.1.1/drivers/message/fusion/mptsas.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/fusion/mptsas.c 2011-11-16 18:39:07.000000000 -0500 +@@ -439,6 +439,23 @@ mptsas_is_end_device(struct mptsas_devin + 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) +@@ -477,23 +494,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *p + 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 -urNp linux-3.1.1/drivers/message/fusion/mptscsih.c linux-3.1.1/drivers/message/fusion/mptscsih.c +--- linux-3.1.1/drivers/message/fusion/mptscsih.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/fusion/mptscsih.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1268,15 +1268,16 @@ 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 -urNp linux-3.1.1/drivers/message/i2o/i2o_config.c linux-3.1.1/drivers/message/i2o/i2o_config.c +--- linux-3.1.1/drivers/message/i2o/i2o_config.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/i2o/i2o_config.c 2011-11-16 18:40:10.000000000 -0500 +@@ -781,6 +781,8 @@ static int i2o_cfg_passthru(unsigned lon + struct i2o_message *msg; + unsigned int iop; + ++ pax_track_stack(); ++ + if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) + return -EFAULT; + +diff -urNp linux-3.1.1/drivers/message/i2o/i2o_proc.c linux-3.1.1/drivers/message/i2o/i2o_proc.c +--- linux-3.1.1/drivers/message/i2o/i2o_proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/i2o/i2o_proc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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_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(s + + 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(str + 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(str + } + + 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 + 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 -urNp linux-3.1.1/drivers/message/i2o/iop.c linux-3.1.1/drivers/message/i2o/iop.c +--- linux-3.1.1/drivers/message/i2o/iop.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/message/i2o/iop.c 2011-11-16 18:39:07.000000000 -0500 +@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_contro + + 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(voi + + #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 -urNp linux-3.1.1/drivers/mfd/ab3100-core.c linux-3.1.1/drivers/mfd/ab3100-core.c +--- linux-3.1.1/drivers/mfd/ab3100-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mfd/ab3100-core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -809,7 +809,7 @@ struct ab_family_id { + char *name; + }; + +-static const struct ab_family_id ids[] __devinitdata = { ++static const struct ab_family_id ids[] __devinitconst = { + /* AB3100 */ + { + .id = 0xc0, +diff -urNp linux-3.1.1/drivers/mfd/abx500-core.c linux-3.1.1/drivers/mfd/abx500-core.c +--- linux-3.1.1/drivers/mfd/abx500-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mfd/abx500-core.c 2011-11-16 18:39:07.000000000 -0500 +@@ -14,7 +14,7 @@ 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 -urNp linux-3.1.1/drivers/mfd/janz-cmodio.c linux-3.1.1/drivers/mfd/janz-cmodio.c +--- linux-3.1.1/drivers/mfd/janz-cmodio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mfd/janz-cmodio.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/mfd/wm8350-i2c.c linux-3.1.1/drivers/mfd/wm8350-i2c.c +--- linux-3.1.1/drivers/mfd/wm8350-i2c.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mfd/wm8350-i2c.c 2011-11-16 18:40:10.000000000 -0500 +@@ -44,6 +44,8 @@ static int wm8350_i2c_write_device(struc + u8 msg[(WM8350_MAX_REGISTER << 1) + 1]; + int ret; + ++ pax_track_stack(); ++ + if (bytes > ((WM8350_MAX_REGISTER << 1) + 1)) + return -EINVAL; + +diff -urNp linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.c linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.c +--- linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.c 2011-11-16 18:39:07.000000000 -0500 +@@ -437,7 +437,7 @@ static irqreturn_t lis302dl_interrupt(in + * the lid is closed. This leads to interrupts as soon as a little move + * is done. + */ +- atomic_inc(&lis3_dev.count); ++ atomic_inc_unchecked(&lis3_dev.count); + + wake_up_interruptible(&lis3_dev.misc_wait); + kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN); +@@ -520,7 +520,7 @@ static int lis3lv02d_misc_open(struct in + if (lis3_dev.pm_dev) + pm_runtime_get_sync(lis3_dev.pm_dev); + +- atomic_set(&lis3_dev.count, 0); ++ atomic_set_unchecked(&lis3_dev.count, 0); + return 0; + } + +@@ -547,7 +547,7 @@ static ssize_t lis3lv02d_misc_read(struc + add_wait_queue(&lis3_dev.misc_wait, &wait); + while (true) { + set_current_state(TASK_INTERRUPTIBLE); +- data = atomic_xchg(&lis3_dev.count, 0); ++ data = atomic_xchg_unchecked(&lis3_dev.count, 0); + if (data) + break; + +@@ -585,7 +585,7 @@ out: + static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) + { + poll_wait(file, &lis3_dev.misc_wait, wait); +- if (atomic_read(&lis3_dev.count)) ++ if (atomic_read_unchecked(&lis3_dev.count)) + return POLLIN | POLLRDNORM; + return 0; + } +diff -urNp linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.h linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.h +--- linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/lis3lv02d/lis3lv02d.h 2011-11-16 18:39:07.000000000 -0500 +@@ -265,7 +265,7 @@ 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 -urNp linux-3.1.1/drivers/misc/sgi-gru/gruhandles.c linux-3.1.1/drivers/misc/sgi-gru/gruhandles.c +--- linux-3.1.1/drivers/misc/sgi-gru/gruhandles.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-gru/gruhandles.c 2011-11-16 18:39:07.000000000 -0500 +@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op + 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 -urNp linux-3.1.1/drivers/misc/sgi-gru/gruprocfs.c linux-3.1.1/drivers/misc/sgi-gru/gruprocfs.c +--- linux-3.1.1/drivers/misc/sgi-gru/gruprocfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-gru/gruprocfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 se + + 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 -urNp linux-3.1.1/drivers/misc/sgi-gru/grutables.h linux-3.1.1/drivers/misc/sgi-gru/grutables.h +--- linux-3.1.1/drivers/misc/sgi-gru/grutables.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-gru/grutables.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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_t copy_gpa; +- atomic_long_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 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_unchecked_t copy_gpa; ++ atomic_long_unchecked_t read_gpa; ++ ++ 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 + 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_st + + #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 -urNp linux-3.1.1/drivers/misc/sgi-xp/xpc.h linux-3.1.1/drivers/misc/sgi-xp/xpc.h +--- linux-3.1.1/drivers/misc/sgi-xp/xpc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-xp/xpc.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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_regis + /* 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 -urNp linux-3.1.1/drivers/misc/sgi-xp/xpc_main.c linux-3.1.1/drivers/misc/sgi-xp/xpc_main.c +--- linux-3.1.1/drivers/misc/sgi-xp/xpc_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-xp/xpc_main.c 2011-11-16 18:39:07.000000000 -0500 +@@ -162,7 +162,7 @@ static struct notifier_block xpc_die_not + .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 -urNp linux-3.1.1/drivers/misc/sgi-xp/xp.h linux-3.1.1/drivers/misc/sgi-xp/xp.h +--- linux-3.1.1/drivers/misc/sgi-xp/xp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/misc/sgi-xp/xp.h 2011-11-16 18:39:07.000000000 -0500 +@@ -289,7 +289,7 @@ 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 -urNp linux-3.1.1/drivers/mmc/host/sdhci-pci.c linux-3.1.1/drivers/mmc/host/sdhci-pci.c +--- linux-3.1.1/drivers/mmc/host/sdhci-pci.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mmc/host/sdhci-pci.c 2011-11-16 18:39:07.000000000 -0500 +@@ -542,7 +542,7 @@ static const struct sdhci_pci_fixes sdhc + .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 -urNp linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0001.c linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0001.c +--- linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0001.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0001.c 2011-11-16 18:40:10.000000000 -0500 +@@ -757,6 +757,8 @@ static int chip_ready (struct map_info * + struct cfi_pri_intelext *cfip = cfi->cmdset_priv; + unsigned long timeo = jiffies + HZ; + ++ pax_track_stack(); ++ + /* Prevent setting state FL_SYNCING for chip in suspended state. */ + if (mode == FL_SYNCING && chip->oldstate != FL_READY) + goto sleep; +@@ -1653,6 +1655,8 @@ static int __xipram do_write_buffer(stru + unsigned long initial_adr; + int initial_len = len; + ++ pax_track_stack(); ++ + wbufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; + adr += chip->start; + initial_adr = adr; +@@ -1871,6 +1875,8 @@ static int __xipram do_erase_oneblock(st + int retries = 3; + int ret; + ++ pax_track_stack(); ++ + adr += chip->start; + + retry: +diff -urNp linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0020.c linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0020.c +--- linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0020.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/chips/cfi_cmdset_0020.c 2011-11-16 18:40:10.000000000 -0500 +@@ -255,6 +255,8 @@ static inline int do_read_onechip(struct + unsigned long cmd_addr; + struct cfi_private *cfi = map->fldrv_priv; + ++ pax_track_stack(); ++ + adr += chip->start; + + /* Ensure cmd read/writes are aligned. */ +@@ -429,6 +431,8 @@ static inline int do_write_buffer(struct + DECLARE_WAITQUEUE(wait, current); + int wbufsize, z; + ++ pax_track_stack(); ++ + /* M58LW064A requires bus alignment for buffer wriets -- saw */ + if (adr & (map_bankwidth(map)-1)) + return -EINVAL; +@@ -743,6 +747,8 @@ static inline int do_erase_oneblock(stru + DECLARE_WAITQUEUE(wait, current); + int ret = 0; + ++ pax_track_stack(); ++ + adr += chip->start; + + /* Let's determine this according to the interleave only once */ +@@ -1048,6 +1054,8 @@ static inline int do_lock_oneblock(struc + unsigned long timeo = jiffies + HZ; + DECLARE_WAITQUEUE(wait, current); + ++ pax_track_stack(); ++ + adr += chip->start; + + /* Let's determine this according to the interleave only once */ +@@ -1197,6 +1205,8 @@ static inline int do_unlock_oneblock(str + unsigned long timeo = jiffies + HZ; + DECLARE_WAITQUEUE(wait, current); + ++ pax_track_stack(); ++ + adr += chip->start; + + /* Let's determine this according to the interleave only once */ +diff -urNp linux-3.1.1/drivers/mtd/devices/doc2000.c linux-3.1.1/drivers/mtd/devices/doc2000.c +--- linux-3.1.1/drivers/mtd/devices/doc2000.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/devices/doc2000.c 2011-11-16 18:39:07.000000000 -0500 +@@ -776,7 +776,7 @@ static int doc_write(struct mtd_info *mt + + /* 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 -urNp linux-3.1.1/drivers/mtd/devices/doc2001.c linux-3.1.1/drivers/mtd/devices/doc2001.c +--- linux-3.1.1/drivers/mtd/devices/doc2001.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/devices/doc2001.c 2011-11-16 18:39:07.000000000 -0500 +@@ -393,7 +393,7 @@ static int doc_read (struct mtd_info *mt + struct Nand *mychip = &this->chips[from >> (this->chipshift)]; + + /* Don't allow read past end of device */ +- if (from >= this->totlen) ++ if (from >= this->totlen || !len) + return -EINVAL; + + /* Don't allow a single read to cross a 512-byte block boundary */ +diff -urNp linux-3.1.1/drivers/mtd/ftl.c linux-3.1.1/drivers/mtd/ftl.c +--- linux-3.1.1/drivers/mtd/ftl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/ftl.c 2011-11-16 18:40:10.000000000 -0500 +@@ -474,6 +474,8 @@ static int copy_erase_unit(partition_t * + loff_t offset; + uint16_t srcunitswap = cpu_to_le16(srcunit); + ++ pax_track_stack(); ++ + eun = &part->EUNInfo[srcunit]; + xfer = &part->XferInfo[xferunit]; + DEBUG(2, "ftl_cs: copying block 0x%x to 0x%x\n", +diff -urNp linux-3.1.1/drivers/mtd/inftlcore.c linux-3.1.1/drivers/mtd/inftlcore.c +--- linux-3.1.1/drivers/mtd/inftlcore.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/inftlcore.c 2011-11-16 18:40:10.000000000 -0500 +@@ -259,6 +259,8 @@ static u16 INFTL_foldchain(struct INFTLr + struct inftl_oob oob; + size_t retlen; + ++ pax_track_stack(); ++ + DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," + "pending=%d)\n", inftl, thisVUC, pendingblock); + +diff -urNp linux-3.1.1/drivers/mtd/inftlmount.c linux-3.1.1/drivers/mtd/inftlmount.c +--- linux-3.1.1/drivers/mtd/inftlmount.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/inftlmount.c 2011-11-16 18:40:10.000000000 -0500 +@@ -53,6 +53,8 @@ static int find_boot_record(struct INFTL + struct INFTLPartition *ip; + size_t retlen; + ++ pax_track_stack(); ++ + DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl); + + /* +diff -urNp linux-3.1.1/drivers/mtd/lpddr/qinfo_probe.c linux-3.1.1/drivers/mtd/lpddr/qinfo_probe.c +--- linux-3.1.1/drivers/mtd/lpddr/qinfo_probe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/lpddr/qinfo_probe.c 2011-11-16 18:40:10.000000000 -0500 +@@ -106,6 +106,8 @@ static int lpddr_pfow_present(struct map + { + map_word pfow_val[4]; + ++ pax_track_stack(); ++ + /* Check identification string */ + pfow_val[0] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_P); + pfow_val[1] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_F); +diff -urNp linux-3.1.1/drivers/mtd/mtdchar.c linux-3.1.1/drivers/mtd/mtdchar.c +--- linux-3.1.1/drivers/mtd/mtdchar.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/mtdchar.c 2011-11-16 18:40:10.000000000 -0500 +@@ -554,6 +554,8 @@ static int mtd_ioctl(struct file *file, + u_long size; + struct mtd_info_user info; + ++ pax_track_stack(); ++ + DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n"); + + size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; +diff -urNp linux-3.1.1/drivers/mtd/nand/denali.c linux-3.1.1/drivers/mtd/nand/denali.c +--- linux-3.1.1/drivers/mtd/nand/denali.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/nand/denali.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/mtd/nftlcore.c linux-3.1.1/drivers/mtd/nftlcore.c +--- linux-3.1.1/drivers/mtd/nftlcore.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/nftlcore.c 2011-11-16 18:40:10.000000000 -0500 +@@ -264,6 +264,8 @@ static u16 NFTL_foldchain (struct NFTLre + int inplace = 1; + size_t retlen; + ++ pax_track_stack(); ++ + memset(BlockMap, 0xff, sizeof(BlockMap)); + memset(BlockFreeFound, 0, sizeof(BlockFreeFound)); + +diff -urNp linux-3.1.1/drivers/mtd/nftlmount.c linux-3.1.1/drivers/mtd/nftlmount.c +--- linux-3.1.1/drivers/mtd/nftlmount.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/nftlmount.c 2011-11-16 18:40:10.000000000 -0500 +@@ -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> +@@ -45,6 +46,8 @@ static int find_boot_record(struct NFTLr + struct mtd_info *mtd = nftl->mbd.mtd; + unsigned int i; + ++ pax_track_stack(); ++ + /* Assume logical EraseSize == physical erasesize for starting the scan. + We'll sort it out later if we find a MediaHeader which says otherwise */ + /* Actually, we won't. The new DiskOnChip driver has already scanned +diff -urNp linux-3.1.1/drivers/mtd/ubi/build.c linux-3.1.1/drivers/mtd/ubi/build.c +--- linux-3.1.1/drivers/mtd/ubi/build.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/mtd/ubi/build.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1311,7 +1311,7 @@ module_exit(ubi_exit); + static int __init bytes_str_to_int(const char *str) + { + char *endp; +- unsigned long result; ++ unsigned long result, scale = 1; + + result = simple_strtoul(str, &endp, 0); + if (str == endp || result >= INT_MAX) { +@@ -1322,11 +1322,11 @@ static int __init bytes_str_to_int(const + + switch (*endp) { + case 'G': +- result *= 1024; ++ scale *= 1024; + case 'M': +- result *= 1024; ++ scale *= 1024; + case 'K': +- result *= 1024; ++ scale *= 1024; + if (endp[1] == 'i' && endp[2] == 'B') + endp += 2; + case '\0': +@@ -1337,7 +1337,13 @@ static int __init bytes_str_to_int(const + return -EINVAL; + } + +- return result; ++ if ((intoverflow_t)result*scale >= INT_MAX) { ++ printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n", ++ str); ++ return -EINVAL; ++ } ++ ++ return result*scale; + } + + /** +diff -urNp linux-3.1.1/drivers/net/atlx/atl2.c linux-3.1.1/drivers/net/atlx/atl2.c +--- linux-3.1.1/drivers/net/atlx/atl2.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/atlx/atl2.c 2011-11-16 18:39:07.000000000 -0500 +@@ -2857,7 +2857,7 @@ static void atl2_force_ps(struct atl2_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 -urNp linux-3.1.1/drivers/net/bna/bfa_ioc_ct.c linux-3.1.1/drivers/net/bna/bfa_ioc_ct.c +--- linux-3.1.1/drivers/net/bna/bfa_ioc_ct.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/bna/bfa_ioc_ct.c 2011-11-16 18:39:07.000000000 -0500 +@@ -48,7 +48,21 @@ static void bfa_ioc_ct_sync_ack(struct b + static bool bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc); + static enum bfa_status bfa_ioc_ct_pll_init(void __iomem *rb, bool fcmode); + +-static struct bfa_ioc_hwif nw_hwif_ct; ++static struct bfa_ioc_hwif nw_hwif_ct = { ++ .ioc_pll_init = bfa_ioc_ct_pll_init, ++ .ioc_firmware_lock = bfa_ioc_ct_firmware_lock, ++ .ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock, ++ .ioc_reg_init = bfa_ioc_ct_reg_init, ++ .ioc_map_port = bfa_ioc_ct_map_port, ++ .ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set, ++ .ioc_notify_fail = bfa_ioc_ct_notify_fail, ++ .ioc_ownership_reset = bfa_ioc_ct_ownership_reset, ++ .ioc_sync_start = bfa_ioc_ct_sync_start, ++ .ioc_sync_join = bfa_ioc_ct_sync_join, ++ .ioc_sync_leave = bfa_ioc_ct_sync_leave, ++ .ioc_sync_ack = bfa_ioc_ct_sync_ack, ++ .ioc_sync_complete = bfa_ioc_ct_sync_complete ++}; + + /** + * Called from bfa_ioc_attach() to map asic specific calls. +@@ -56,20 +70,6 @@ static struct bfa_ioc_hwif nw_hwif_ct; + void + bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc) + { +- nw_hwif_ct.ioc_pll_init = bfa_ioc_ct_pll_init; +- nw_hwif_ct.ioc_firmware_lock = bfa_ioc_ct_firmware_lock; +- nw_hwif_ct.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock; +- nw_hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init; +- nw_hwif_ct.ioc_map_port = bfa_ioc_ct_map_port; +- nw_hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set; +- nw_hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail; +- nw_hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset; +- nw_hwif_ct.ioc_sync_start = bfa_ioc_ct_sync_start; +- nw_hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join; +- nw_hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave; +- nw_hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack; +- nw_hwif_ct.ioc_sync_complete = bfa_ioc_ct_sync_complete; +- + ioc->ioc_hwif = &nw_hwif_ct; + } + +diff -urNp linux-3.1.1/drivers/net/bna/bnad.c linux-3.1.1/drivers/net/bna/bnad.c +--- linux-3.1.1/drivers/net/bna/bnad.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/bna/bnad.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1673,7 +1673,14 @@ bnad_setup_tx(struct bnad *bnad, uint tx + struct bna_intr_info *intr_info = + &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; + struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; +- struct bna_tx_event_cbfn tx_cbfn; ++ static struct bna_tx_event_cbfn tx_cbfn = { ++ /* Initialize the tx event handlers */ ++ .tcb_setup_cbfn = bnad_cb_tcb_setup, ++ .tcb_destroy_cbfn = bnad_cb_tcb_destroy, ++ .tx_stall_cbfn = bnad_cb_tx_stall, ++ .tx_resume_cbfn = bnad_cb_tx_resume, ++ .tx_cleanup_cbfn = bnad_cb_tx_cleanup ++ }; + struct bna_tx *tx; + unsigned long flags; + +@@ -1682,13 +1689,6 @@ bnad_setup_tx(struct bnad *bnad, uint tx + tx_config->txq_depth = bnad->txq_depth; + tx_config->tx_type = BNA_TX_T_REGULAR; + +- /* Initialize the tx event handlers */ +- tx_cbfn.tcb_setup_cbfn = bnad_cb_tcb_setup; +- tx_cbfn.tcb_destroy_cbfn = bnad_cb_tcb_destroy; +- tx_cbfn.tx_stall_cbfn = bnad_cb_tx_stall; +- tx_cbfn.tx_resume_cbfn = bnad_cb_tx_resume; +- tx_cbfn.tx_cleanup_cbfn = bnad_cb_tx_cleanup; +- + /* Get BNA's resource requirement for one tx object */ + spin_lock_irqsave(&bnad->bna_lock, flags); + bna_tx_res_req(bnad->num_txq_per_tx, +@@ -1819,21 +1819,21 @@ bnad_setup_rx(struct bnad *bnad, uint rx + struct bna_intr_info *intr_info = + &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; + struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; +- struct bna_rx_event_cbfn rx_cbfn; ++ static struct bna_rx_event_cbfn rx_cbfn = { ++ /* Initialize the Rx event handlers */ ++ .rcb_setup_cbfn = bnad_cb_rcb_setup, ++ .rcb_destroy_cbfn = bnad_cb_rcb_destroy, ++ .ccb_setup_cbfn = bnad_cb_ccb_setup, ++ .ccb_destroy_cbfn = bnad_cb_ccb_destroy, ++ .rx_cleanup_cbfn = bnad_cb_rx_cleanup, ++ .rx_post_cbfn = bnad_cb_rx_post ++ }; + struct bna_rx *rx; + unsigned long flags; + + /* Initialize the Rx object configuration */ + bnad_init_rx_config(bnad, rx_config); + +- /* Initialize the Rx event handlers */ +- rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup; +- rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy; +- rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup; +- rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy; +- rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup; +- rx_cbfn.rx_post_cbfn = bnad_cb_rx_post; +- + /* Get BNA's resource requirement for one Rx object */ + spin_lock_irqsave(&bnad->bna_lock, flags); + bna_rx_res_req(rx_config, res_info); +diff -urNp linux-3.1.1/drivers/net/bnx2.c linux-3.1.1/drivers/net/bnx2.c +--- linux-3.1.1/drivers/net/bnx2.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/bnx2.c 2011-11-16 18:40:11.000000000 -0500 +@@ -5877,6 +5877,8 @@ bnx2_test_nvram(struct bnx2 *bp) + int rc = 0; + u32 magic, csum; + ++ pax_track_stack(); ++ + if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0) + goto test_nvram_done; + +diff -urNp linux-3.1.1/drivers/net/bnx2x/bnx2x_ethtool.c linux-3.1.1/drivers/net/bnx2x/bnx2x_ethtool.c +--- linux-3.1.1/drivers/net/bnx2x/bnx2x_ethtool.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/bnx2x/bnx2x_ethtool.c 2011-11-16 18:40:11.000000000 -0500 +@@ -1943,6 +1943,8 @@ static int bnx2x_test_nvram(struct bnx2x + int i, rc; + u32 magic, crc; + ++ pax_track_stack(); ++ + if (BP_NOMCP(bp)) + return 0; + +diff -urNp linux-3.1.1/drivers/net/bnx2x/bnx2x_sp.h linux-3.1.1/drivers/net/bnx2x/bnx2x_sp.h +--- linux-3.1.1/drivers/net/bnx2x/bnx2x_sp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/bnx2x/bnx2x_sp.h 2011-11-16 18:39:07.000000000 -0500 +@@ -449,7 +449,7 @@ struct bnx2x_rx_mode_obj { + + int (*wait_comp)(struct bnx2x *bp, + struct bnx2x_rx_mode_ramrod_params *p); +-}; ++} __no_const; + + /********************** Set multicast group ***********************************/ + +diff -urNp linux-3.1.1/drivers/net/cxgb3/l2t.h linux-3.1.1/drivers/net/cxgb3/l2t.h +--- linux-3.1.1/drivers/net/cxgb3/l2t.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/cxgb3/l2t.h 2011-11-16 18:39:07.000000000 -0500 +@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func) + */ + 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 -urNp linux-3.1.1/drivers/net/cxgb4/cxgb4_main.c linux-3.1.1/drivers/net/cxgb4/cxgb4_main.c +--- linux-3.1.1/drivers/net/cxgb4/cxgb4_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/cxgb4/cxgb4_main.c 2011-11-16 18:40:22.000000000 -0500 +@@ -3396,6 +3396,8 @@ static int __devinit enable_msix(struct + unsigned int nchan = adap->params.nports; + struct msix_entry entries[MAX_INGQ + 1]; + ++ pax_track_stack(); ++ + for (i = 0; i < ARRAY_SIZE(entries); ++i) + entries[i].entry = i; + +diff -urNp linux-3.1.1/drivers/net/cxgb4/t4_hw.c linux-3.1.1/drivers/net/cxgb4/t4_hw.c +--- linux-3.1.1/drivers/net/cxgb4/t4_hw.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/cxgb4/t4_hw.c 2011-11-16 18:40:22.000000000 -0500 +@@ -362,6 +362,8 @@ static int get_vpd_params(struct adapter + u8 vpd[VPD_LEN], csum; + unsigned int vpdr_len, kw_offset, id_len; + ++ pax_track_stack(); ++ + ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(vpd), vpd); + if (ret < 0) + return ret; +diff -urNp linux-3.1.1/drivers/net/e1000e/82571.c linux-3.1.1/drivers/net/e1000e/82571.c +--- linux-3.1.1/drivers/net/e1000e/82571.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/e1000e/82571.c 2011-11-16 18:39:07.000000000 -0500 +@@ -239,7 +239,7 @@ static s32 e1000_init_mac_params_82571(s + { + struct e1000_hw *hw = &adapter->hw; + struct e1000_mac_info *mac = &hw->mac; +- struct e1000_mac_operations *func = &mac->ops; ++ e1000_mac_operations_no_const *func = &mac->ops; + u32 swsm = 0; + u32 swsm2 = 0; + bool force_clear_smbi = false; +diff -urNp linux-3.1.1/drivers/net/e1000e/es2lan.c linux-3.1.1/drivers/net/e1000e/es2lan.c +--- linux-3.1.1/drivers/net/e1000e/es2lan.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/e1000e/es2lan.c 2011-11-16 18:39:07.000000000 -0500 +@@ -205,7 +205,7 @@ static s32 e1000_init_mac_params_80003es + { + struct e1000_hw *hw = &adapter->hw; + struct e1000_mac_info *mac = &hw->mac; +- struct e1000_mac_operations *func = &mac->ops; ++ e1000_mac_operations_no_const *func = &mac->ops; + + /* Set media type */ + switch (adapter->pdev->device) { +diff -urNp linux-3.1.1/drivers/net/e1000e/hw.h linux-3.1.1/drivers/net/e1000e/hw.h +--- linux-3.1.1/drivers/net/e1000e/hw.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/e1000e/hw.h 2011-11-16 18:39:07.000000000 -0500 +@@ -778,6 +778,7 @@ struct e1000_mac_operations { + void (*write_vfta)(struct e1000_hw *, u32, u32); + 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: +@@ -818,6 +819,7 @@ 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 { +@@ -829,9 +831,10 @@ 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]; + +@@ -872,7 +875,7 @@ struct e1000_mac_info { + }; + + struct e1000_phy_info { +- struct e1000_phy_operations ops; ++ e1000_phy_operations_no_const ops; + + enum e1000_phy_type type; + +@@ -906,7 +909,7 @@ 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 -urNp linux-3.1.1/drivers/net/fealnx.c linux-3.1.1/drivers/net/fealnx.c +--- linux-3.1.1/drivers/net/fealnx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/fealnx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/hamradio/6pack.c linux-3.1.1/drivers/net/hamradio/6pack.c +--- linux-3.1.1/drivers/net/hamradio/6pack.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/hamradio/6pack.c 2011-11-16 18:40:22.000000000 -0500 +@@ -463,6 +463,8 @@ static void sixpack_receive_buf(struct t + unsigned char buf[512]; + int count1; + ++ pax_track_stack(); ++ + if (!count) + return; + +diff -urNp linux-3.1.1/drivers/net/igb/e1000_hw.h linux-3.1.1/drivers/net/igb/e1000_hw.h +--- linux-3.1.1/drivers/net/igb/e1000_hw.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/igb/e1000_hw.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/igbvf/vf.h linux-3.1.1/drivers/net/igbvf/vf.h +--- linux-3.1.1/drivers/net/igbvf/vf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/igbvf/vf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/ixgb/ixgb_main.c linux-3.1.1/drivers/net/ixgb/ixgb_main.c +--- linux-3.1.1/drivers/net/ixgb/ixgb_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ixgb/ixgb_main.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1070,6 +1070,8 @@ ixgb_set_multi(struct net_device *netdev + u32 rctl; + int i; + ++ pax_track_stack(); ++ + /* Check for Promiscuous and All Multicast modes */ + + rctl = IXGB_READ_REG(hw, RCTL); +diff -urNp linux-3.1.1/drivers/net/ixgb/ixgb_param.c linux-3.1.1/drivers/net/ixgb/ixgb_param.c +--- linux-3.1.1/drivers/net/ixgb/ixgb_param.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ixgb/ixgb_param.c 2011-11-16 18:40:22.000000000 -0500 +@@ -261,6 +261,9 @@ void __devinit + ixgb_check_options(struct ixgb_adapter *adapter) + { + int bd = adapter->bd_number; ++ ++ pax_track_stack(); ++ + if (bd >= IXGB_MAX_NIC) { + pr_notice("Warning: no configuration for board #%i\n", bd); + pr_notice("Using defaults for all values\n"); +diff -urNp linux-3.1.1/drivers/net/ixgbe/ixgbe_type.h linux-3.1.1/drivers/net/ixgbe/ixgbe_type.h +--- linux-3.1.1/drivers/net/ixgbe/ixgbe_type.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ixgbe/ixgbe_type.h 2011-11-16 18:39:07.000000000 -0500 +@@ -2642,6 +2642,7 @@ 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 *); +@@ -2703,6 +2704,7 @@ 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 *); +@@ -2722,9 +2724,10 @@ 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; +@@ -2734,7 +2737,7 @@ 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[IXGBE_ETH_LENGTH_OF_ADDRESS]; + u8 perm_addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; +@@ -2762,7 +2765,7 @@ 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; +@@ -2790,6 +2793,7 @@ 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; +@@ -2801,7 +2805,7 @@ 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 -urNp linux-3.1.1/drivers/net/ixgbevf/vf.h linux-3.1.1/drivers/net/ixgbevf/vf.h +--- linux-3.1.1/drivers/net/ixgbevf/vf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ixgbevf/vf.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/ksz884x.c linux-3.1.1/drivers/net/ksz884x.c +--- linux-3.1.1/drivers/net/ksz884x.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ksz884x.c 2011-11-16 18:40:22.000000000 -0500 +@@ -6533,6 +6533,8 @@ static void netdev_get_ethtool_stats(str + int rc; + u64 counter[TOTAL_PORT_COUNTER_NUM]; + ++ pax_track_stack(); ++ + mutex_lock(&hw_priv->lock); + n = SWITCH_PORT_NUM; + for (i = 0, p = port->first_port; i < port->mib_port_cnt; i++, p++) { +diff -urNp linux-3.1.1/drivers/net/mlx4/main.c linux-3.1.1/drivers/net/mlx4/main.c +--- linux-3.1.1/drivers/net/mlx4/main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/mlx4/main.c 2011-11-16 18:40:22.000000000 -0500 +@@ -40,6 +40,7 @@ + #include <linux/dma-mapping.h> + #include <linux/slab.h> + #include <linux/io-mapping.h> ++#include <linux/sched.h> + + #include <linux/mlx4/device.h> + #include <linux/mlx4/doorbell.h> +@@ -762,6 +763,8 @@ static int mlx4_init_hca(struct mlx4_dev + u64 icm_size; + int err; + ++ pax_track_stack(); ++ + err = mlx4_QUERY_FW(dev); + if (err) { + if (err == -EACCES) +diff -urNp linux-3.1.1/drivers/net/niu.c linux-3.1.1/drivers/net/niu.c +--- linux-3.1.1/drivers/net/niu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/niu.c 2011-11-16 18:40:22.000000000 -0500 +@@ -9061,6 +9061,8 @@ static void __devinit niu_try_msix(struc + int i, num_irqs, err; + u8 first_ldg; + ++ pax_track_stack(); ++ + first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; + for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) + ldg_num_map[i] = first_ldg + i; +diff -urNp linux-3.1.1/drivers/net/pcnet32.c linux-3.1.1/drivers/net/pcnet32.c +--- linux-3.1.1/drivers/net/pcnet32.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/pcnet32.c 2011-11-16 18:39:07.000000000 -0500 +@@ -270,7 +270,7 @@ struct pcnet32_private { + struct sk_buff **rx_skbuff; + dma_addr_t *tx_dma_addr; + dma_addr_t *rx_dma_addr; +- struct pcnet32_access a; ++ struct pcnet32_access *a; + spinlock_t lock; /* Guard lock */ + unsigned int cur_rx, cur_tx; /* The next free ring entry */ + unsigned int rx_ring_size; /* current rx ring size */ +@@ -460,9 +460,9 @@ static void pcnet32_netif_start(struct n + u16 val; + + netif_wake_queue(dev); +- val = lp->a.read_csr(ioaddr, CSR3); ++ val = lp->a->read_csr(ioaddr, CSR3); + val &= 0x00ff; +- lp->a.write_csr(ioaddr, CSR3, val); ++ lp->a->write_csr(ioaddr, CSR3, val); + napi_enable(&lp->napi); + } + +@@ -730,7 +730,7 @@ static u32 pcnet32_get_link(struct net_d + r = mii_link_ok(&lp->mii_if); + } else if (lp->chip_version >= PCNET32_79C970A) { + ulong ioaddr = dev->base_addr; /* card base I/O address */ +- r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); ++ r = (lp->a->read_bcr(ioaddr, 4) != 0xc0); + } else { /* can not detect link on really old chips */ + r = 1; + } +@@ -792,7 +792,7 @@ static int pcnet32_set_ringparam(struct + pcnet32_netif_stop(dev); + + spin_lock_irqsave(&lp->lock, flags); +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ + + size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); + +@@ -868,7 +868,7 @@ static void pcnet32_ethtool_test(struct + static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) + { + struct pcnet32_private *lp = netdev_priv(dev); +- struct pcnet32_access *a = &lp->a; /* access to registers */ ++ struct pcnet32_access *a = lp->a; /* access to registers */ + ulong ioaddr = dev->base_addr; /* card base I/O address */ + struct sk_buff *skb; /* sk buff */ + int x, i; /* counters */ +@@ -888,21 +888,21 @@ static int pcnet32_loopback_test(struct + pcnet32_netif_stop(dev); + + spin_lock_irqsave(&lp->lock, flags); +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ + + numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size)); + + /* Reset the PCNET32 */ +- lp->a.reset(ioaddr); +- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ ++ lp->a->reset(ioaddr); ++ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ + + /* switch pcnet32 to 32bit mode */ +- lp->a.write_bcr(ioaddr, 20, 2); ++ lp->a->write_bcr(ioaddr, 20, 2); + + /* purge & init rings but don't actually restart */ + pcnet32_restart(dev, 0x0000); + +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ + + /* Initialize Transmit buffers. */ + size = data_len + 15; +@@ -947,10 +947,10 @@ static int pcnet32_loopback_test(struct + + /* set int loopback in CSR15 */ + x = a->read_csr(ioaddr, CSR15) & 0xfffc; +- lp->a.write_csr(ioaddr, CSR15, x | 0x0044); ++ lp->a->write_csr(ioaddr, CSR15, x | 0x0044); + + teststatus = cpu_to_le16(0x8000); +- lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ + + /* Check status of descriptors */ + for (x = 0; x < numbuffs; x++) { +@@ -969,7 +969,7 @@ static int pcnet32_loopback_test(struct + } + } + +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ + wmb(); + if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { + netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n"); +@@ -1015,7 +1015,7 @@ clean_up: + pcnet32_restart(dev, CSR0_NORMAL); + } else { + pcnet32_purge_rx_ring(dev); +- lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ ++ lp->a->write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ + } + spin_unlock_irqrestore(&lp->lock, flags); + +@@ -1026,7 +1026,7 @@ static int pcnet32_set_phys_id(struct ne + enum ethtool_phys_id_state state) + { + struct pcnet32_private *lp = netdev_priv(dev); +- struct pcnet32_access *a = &lp->a; ++ struct pcnet32_access *a = lp->a; + ulong ioaddr = dev->base_addr; + unsigned long flags; + int i; +@@ -1067,7 +1067,7 @@ static int pcnet32_suspend(struct net_de + { + int csr5; + struct pcnet32_private *lp = netdev_priv(dev); +- struct pcnet32_access *a = &lp->a; ++ struct pcnet32_access *a = lp->a; + ulong ioaddr = dev->base_addr; + int ticks; + +@@ -1324,8 +1324,8 @@ static int pcnet32_poll(struct napi_stru + spin_lock_irqsave(&lp->lock, flags); + if (pcnet32_tx(dev)) { + /* reset the chip to clear the error condition, then restart */ +- lp->a.reset(ioaddr); +- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ ++ lp->a->reset(ioaddr); ++ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ + pcnet32_restart(dev, CSR0_START); + netif_wake_queue(dev); + } +@@ -1337,12 +1337,12 @@ static int pcnet32_poll(struct napi_stru + __napi_complete(napi); + + /* clear interrupt masks */ +- val = lp->a.read_csr(ioaddr, CSR3); ++ val = lp->a->read_csr(ioaddr, CSR3); + val &= 0x00ff; +- lp->a.write_csr(ioaddr, CSR3, val); ++ lp->a->write_csr(ioaddr, CSR3, val); + + /* Set interrupt enable. */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN); + + spin_unlock_irqrestore(&lp->lock, flags); + } +@@ -1365,7 +1365,7 @@ static void pcnet32_get_regs(struct net_ + int i, csr0; + u16 *buff = ptr; + struct pcnet32_private *lp = netdev_priv(dev); +- struct pcnet32_access *a = &lp->a; ++ struct pcnet32_access *a = lp->a; + ulong ioaddr = dev->base_addr; + unsigned long flags; + +@@ -1401,9 +1401,9 @@ static void pcnet32_get_regs(struct net_ + for (j = 0; j < PCNET32_MAX_PHYS; j++) { + if (lp->phymask & (1 << j)) { + for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { +- lp->a.write_bcr(ioaddr, 33, ++ lp->a->write_bcr(ioaddr, 33, + (j << 5) | i); +- *buff++ = lp->a.read_bcr(ioaddr, 34); ++ *buff++ = lp->a->read_bcr(ioaddr, 34); + } + } + } +@@ -1785,7 +1785,7 @@ pcnet32_probe1(unsigned long ioaddr, int + ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) + lp->options |= PCNET32_PORT_FD; + +- lp->a = *a; ++ lp->a = a; + + /* prior to register_netdev, dev->name is not yet correct */ + if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { +@@ -1844,7 +1844,7 @@ pcnet32_probe1(unsigned long ioaddr, int + if (lp->mii) { + /* lp->phycount and lp->phymask are set to 0 by memset above */ + +- lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; ++ lp->mii_if.phy_id = ((lp->a->read_bcr(ioaddr, 33)) >> 5) & 0x1f; + /* scan for PHYs */ + for (i = 0; i < PCNET32_MAX_PHYS; i++) { + unsigned short id1, id2; +@@ -1864,7 +1864,7 @@ pcnet32_probe1(unsigned long ioaddr, int + pr_info("Found PHY %04x:%04x at address %d\n", + id1, id2, i); + } +- lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); ++ lp->a->write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); + if (lp->phycount > 1) + lp->options |= PCNET32_PORT_MII; + } +@@ -2020,10 +2020,10 @@ static int pcnet32_open(struct net_devic + } + + /* Reset the PCNET32 */ +- lp->a.reset(ioaddr); ++ lp->a->reset(ioaddr); + + /* switch pcnet32 to 32bit mode */ +- lp->a.write_bcr(ioaddr, 20, 2); ++ lp->a->write_bcr(ioaddr, 20, 2); + + netif_printk(lp, ifup, KERN_DEBUG, dev, + "%s() irq %d tx/rx rings %#x/%#x init %#x\n", +@@ -2032,14 +2032,14 @@ static int pcnet32_open(struct net_devic + (u32) (lp->init_dma_addr)); + + /* set/reset autoselect bit */ +- val = lp->a.read_bcr(ioaddr, 2) & ~2; ++ val = lp->a->read_bcr(ioaddr, 2) & ~2; + if (lp->options & PCNET32_PORT_ASEL) + val |= 2; +- lp->a.write_bcr(ioaddr, 2, val); ++ lp->a->write_bcr(ioaddr, 2, val); + + /* handle full duplex setting */ + if (lp->mii_if.full_duplex) { +- val = lp->a.read_bcr(ioaddr, 9) & ~3; ++ val = lp->a->read_bcr(ioaddr, 9) & ~3; + if (lp->options & PCNET32_PORT_FD) { + val |= 1; + if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) +@@ -2049,14 +2049,14 @@ static int pcnet32_open(struct net_devic + if (lp->chip_version == 0x2627) + val |= 3; + } +- lp->a.write_bcr(ioaddr, 9, val); ++ lp->a->write_bcr(ioaddr, 9, val); + } + + /* set/reset GPSI bit in test register */ +- val = lp->a.read_csr(ioaddr, 124) & ~0x10; ++ val = lp->a->read_csr(ioaddr, 124) & ~0x10; + if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) + val |= 0x10; +- lp->a.write_csr(ioaddr, 124, val); ++ lp->a->write_csr(ioaddr, 124, val); + + /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ + if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT && +@@ -2075,24 +2075,24 @@ static int pcnet32_open(struct net_devic + * duplex, and/or enable auto negotiation, and clear DANAS + */ + if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { +- lp->a.write_bcr(ioaddr, 32, +- lp->a.read_bcr(ioaddr, 32) | 0x0080); ++ lp->a->write_bcr(ioaddr, 32, ++ lp->a->read_bcr(ioaddr, 32) | 0x0080); + /* disable Auto Negotiation, set 10Mpbs, HD */ +- val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; ++ val = lp->a->read_bcr(ioaddr, 32) & ~0xb8; + if (lp->options & PCNET32_PORT_FD) + val |= 0x10; + if (lp->options & PCNET32_PORT_100) + val |= 0x08; +- lp->a.write_bcr(ioaddr, 32, val); ++ lp->a->write_bcr(ioaddr, 32, val); + } else { + if (lp->options & PCNET32_PORT_ASEL) { +- lp->a.write_bcr(ioaddr, 32, +- lp->a.read_bcr(ioaddr, ++ lp->a->write_bcr(ioaddr, 32, ++ lp->a->read_bcr(ioaddr, + 32) | 0x0080); + /* enable auto negotiate, setup, disable fd */ +- val = lp->a.read_bcr(ioaddr, 32) & ~0x98; ++ val = lp->a->read_bcr(ioaddr, 32) & ~0x98; + val |= 0x20; +- lp->a.write_bcr(ioaddr, 32, val); ++ lp->a->write_bcr(ioaddr, 32, val); + } + } + } else { +@@ -2105,10 +2105,10 @@ static int pcnet32_open(struct net_devic + * There is really no good other way to handle multiple PHYs + * other than turning off all automatics + */ +- val = lp->a.read_bcr(ioaddr, 2); +- lp->a.write_bcr(ioaddr, 2, val & ~2); +- val = lp->a.read_bcr(ioaddr, 32); +- lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ ++ val = lp->a->read_bcr(ioaddr, 2); ++ lp->a->write_bcr(ioaddr, 2, val & ~2); ++ val = lp->a->read_bcr(ioaddr, 32); ++ lp->a->write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ + + if (!(lp->options & PCNET32_PORT_ASEL)) { + /* setup ecmd */ +@@ -2118,7 +2118,7 @@ static int pcnet32_open(struct net_devic + ethtool_cmd_speed_set(&ecmd, + (lp->options & PCNET32_PORT_100) ? + SPEED_100 : SPEED_10); +- bcr9 = lp->a.read_bcr(ioaddr, 9); ++ bcr9 = lp->a->read_bcr(ioaddr, 9); + + if (lp->options & PCNET32_PORT_FD) { + ecmd.duplex = DUPLEX_FULL; +@@ -2127,7 +2127,7 @@ static int pcnet32_open(struct net_devic + ecmd.duplex = DUPLEX_HALF; + bcr9 |= ~(1 << 0); + } +- lp->a.write_bcr(ioaddr, 9, bcr9); ++ lp->a->write_bcr(ioaddr, 9, bcr9); + } + + for (i = 0; i < PCNET32_MAX_PHYS; i++) { +@@ -2158,9 +2158,9 @@ static int pcnet32_open(struct net_devic + + #ifdef DO_DXSUFLO + if (lp->dxsuflo) { /* Disable transmit stop on underflow */ +- val = lp->a.read_csr(ioaddr, CSR3); ++ val = lp->a->read_csr(ioaddr, CSR3); + val |= 0x40; +- lp->a.write_csr(ioaddr, CSR3, val); ++ lp->a->write_csr(ioaddr, CSR3, val); + } + #endif + +@@ -2176,11 +2176,11 @@ static int pcnet32_open(struct net_devic + napi_enable(&lp->napi); + + /* Re-initialize the PCNET32, and start it when done. */ +- lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); +- lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); ++ lp->a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); ++ lp->a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); + +- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); ++ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ ++ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); + + netif_start_queue(dev); + +@@ -2192,19 +2192,19 @@ static int pcnet32_open(struct net_devic + + i = 0; + while (i++ < 100) +- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) ++ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) + break; + /* + * We used to clear the InitDone bit, 0x0100, here but Mark Stockton + * reports that doing so triggers a bug in the '974. + */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_NORMAL); + + netif_printk(lp, ifup, KERN_DEBUG, dev, + "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n", + i, + (u32) (lp->init_dma_addr), +- lp->a.read_csr(ioaddr, CSR0)); ++ lp->a->read_csr(ioaddr, CSR0)); + + spin_unlock_irqrestore(&lp->lock, flags); + +@@ -2218,7 +2218,7 @@ err_free_ring: + * Switch back to 16bit mode to avoid problems with dumb + * DOS packet driver after a warm reboot + */ +- lp->a.write_bcr(ioaddr, 20, 4); ++ lp->a->write_bcr(ioaddr, 20, 4); + + err_free_irq: + spin_unlock_irqrestore(&lp->lock, flags); +@@ -2323,7 +2323,7 @@ static void pcnet32_restart(struct net_d + + /* wait for stop */ + for (i = 0; i < 100; i++) +- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) ++ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_STOP) + break; + + if (i >= 100) +@@ -2335,13 +2335,13 @@ static void pcnet32_restart(struct net_d + return; + + /* ReInit Ring */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); + i = 0; + while (i++ < 1000) +- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) ++ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) + break; + +- lp->a.write_csr(ioaddr, CSR0, csr0_bits); ++ lp->a->write_csr(ioaddr, CSR0, csr0_bits); + } + + static void pcnet32_tx_timeout(struct net_device *dev) +@@ -2353,8 +2353,8 @@ static void pcnet32_tx_timeout(struct ne + /* Transmitter timeout, serious problems. */ + if (pcnet32_debug & NETIF_MSG_DRV) + pr_err("%s: transmit timed out, status %4.4x, resetting\n", +- dev->name, lp->a.read_csr(ioaddr, CSR0)); +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); ++ dev->name, lp->a->read_csr(ioaddr, CSR0)); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); + dev->stats.tx_errors++; + if (netif_msg_tx_err(lp)) { + int i; +@@ -2397,7 +2397,7 @@ static netdev_tx_t pcnet32_start_xmit(st + + netif_printk(lp, tx_queued, KERN_DEBUG, dev, + "%s() called, csr0 %4.4x\n", +- __func__, lp->a.read_csr(ioaddr, CSR0)); ++ __func__, lp->a->read_csr(ioaddr, CSR0)); + + /* Default status -- will not enable Successful-TxDone + * interrupt when that option is available to us. +@@ -2427,7 +2427,7 @@ static netdev_tx_t pcnet32_start_xmit(st + dev->stats.tx_bytes += skb->len; + + /* Trigger an immediate send poll. */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); + + if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { + lp->tx_full = 1; +@@ -2452,16 +2452,16 @@ pcnet32_interrupt(int irq, void *dev_id) + + spin_lock(&lp->lock); + +- csr0 = lp->a.read_csr(ioaddr, CSR0); ++ csr0 = lp->a->read_csr(ioaddr, CSR0); + while ((csr0 & 0x8f00) && --boguscnt >= 0) { + if (csr0 == 0xffff) + break; /* PCMCIA remove happened */ + /* Acknowledge all of the current interrupt sources ASAP. */ +- lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); ++ lp->a->write_csr(ioaddr, CSR0, csr0 & ~0x004f); + + netif_printk(lp, intr, KERN_DEBUG, dev, + "interrupt csr0=%#2.2x new csr=%#2.2x\n", +- csr0, lp->a.read_csr(ioaddr, CSR0)); ++ csr0, lp->a->read_csr(ioaddr, CSR0)); + + /* Log misc errors. */ + if (csr0 & 0x4000) +@@ -2488,19 +2488,19 @@ pcnet32_interrupt(int irq, void *dev_id) + if (napi_schedule_prep(&lp->napi)) { + u16 val; + /* set interrupt masks */ +- val = lp->a.read_csr(ioaddr, CSR3); ++ val = lp->a->read_csr(ioaddr, CSR3); + val |= 0x5f00; +- lp->a.write_csr(ioaddr, CSR3, val); ++ lp->a->write_csr(ioaddr, CSR3, val); + + __napi_schedule(&lp->napi); + break; + } +- csr0 = lp->a.read_csr(ioaddr, CSR0); ++ csr0 = lp->a->read_csr(ioaddr, CSR0); + } + + netif_printk(lp, intr, KERN_DEBUG, dev, + "exiting interrupt, csr0=%#4.4x\n", +- lp->a.read_csr(ioaddr, CSR0)); ++ lp->a->read_csr(ioaddr, CSR0)); + + spin_unlock(&lp->lock); + +@@ -2520,20 +2520,20 @@ static int pcnet32_close(struct net_devi + + spin_lock_irqsave(&lp->lock, flags); + +- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); ++ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); + + netif_printk(lp, ifdown, KERN_DEBUG, dev, + "Shutting down ethercard, status was %2.2x\n", +- lp->a.read_csr(ioaddr, CSR0)); ++ lp->a->read_csr(ioaddr, CSR0)); + + /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); + + /* + * Switch back to 16bit mode to avoid problems with dumb + * DOS packet driver after a warm reboot + */ +- lp->a.write_bcr(ioaddr, 20, 4); ++ lp->a->write_bcr(ioaddr, 20, 4); + + spin_unlock_irqrestore(&lp->lock, flags); + +@@ -2556,7 +2556,7 @@ static struct net_device_stats *pcnet32_ + unsigned long flags; + + spin_lock_irqsave(&lp->lock, flags); +- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); ++ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); + spin_unlock_irqrestore(&lp->lock, flags); + + return &dev->stats; +@@ -2577,10 +2577,10 @@ static void pcnet32_load_multicast(struc + if (dev->flags & IFF_ALLMULTI) { + ib->filter[0] = cpu_to_le32(~0U); + ib->filter[1] = cpu_to_le32(~0U); +- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); +- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); +- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); +- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); ++ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); ++ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); ++ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); ++ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); + return; + } + /* clear the multicast filter */ +@@ -2594,7 +2594,7 @@ static void pcnet32_load_multicast(struc + mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); + } + for (i = 0; i < 4; i++) +- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, ++ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER + i, + le16_to_cpu(mcast_table[i])); + } + +@@ -2609,28 +2609,28 @@ static void pcnet32_set_multicast_list(s + + spin_lock_irqsave(&lp->lock, flags); + suspended = pcnet32_suspend(dev, &flags, 0); +- csr15 = lp->a.read_csr(ioaddr, CSR15); ++ csr15 = lp->a->read_csr(ioaddr, CSR15); + if (dev->flags & IFF_PROMISC) { + /* Log any net taps. */ + netif_info(lp, hw, dev, "Promiscuous mode enabled\n"); + lp->init_block->mode = + cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << + 7); +- lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); ++ lp->a->write_csr(ioaddr, CSR15, csr15 | 0x8000); + } else { + lp->init_block->mode = + cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); +- lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); ++ lp->a->write_csr(ioaddr, CSR15, csr15 & 0x7fff); + pcnet32_load_multicast(dev); + } + + if (suspended) { + int csr5; + /* clear SUSPEND (SPND) - CSR5 bit 0 */ +- csr5 = lp->a.read_csr(ioaddr, CSR5); +- lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); ++ csr5 = lp->a->read_csr(ioaddr, CSR5); ++ lp->a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); + } else { +- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); ++ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); + pcnet32_restart(dev, CSR0_NORMAL); + netif_wake_queue(dev); + } +@@ -2648,8 +2648,8 @@ static int mdio_read(struct net_device * + if (!lp->mii) + return 0; + +- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); +- val_out = lp->a.read_bcr(ioaddr, 34); ++ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); ++ val_out = lp->a->read_bcr(ioaddr, 34); + + return val_out; + } +@@ -2663,8 +2663,8 @@ static void mdio_write(struct net_device + if (!lp->mii) + return; + +- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); +- lp->a.write_bcr(ioaddr, 34, val); ++ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); ++ lp->a->write_bcr(ioaddr, 34, val); + } + + static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +@@ -2741,7 +2741,7 @@ static void pcnet32_check_media(struct n + curr_link = mii_link_ok(&lp->mii_if); + } else { + ulong ioaddr = dev->base_addr; /* card base I/O address */ +- curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); ++ curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0); + } + if (!curr_link) { + if (prev_link || verbose) { +@@ -2764,13 +2764,13 @@ static void pcnet32_check_media(struct n + (ecmd.duplex == DUPLEX_FULL) + ? "full" : "half"); + } +- bcr9 = lp->a.read_bcr(dev->base_addr, 9); ++ bcr9 = lp->a->read_bcr(dev->base_addr, 9); + if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { + if (lp->mii_if.full_duplex) + bcr9 |= (1 << 0); + else + bcr9 &= ~(1 << 0); +- lp->a.write_bcr(dev->base_addr, 9, bcr9); ++ lp->a->write_bcr(dev->base_addr, 9, bcr9); + } + } else { + netif_info(lp, link, dev, "link up\n"); +diff -urNp linux-3.1.1/drivers/net/ppp_generic.c linux-3.1.1/drivers/net/ppp_generic.c +--- linux-3.1.1/drivers/net/ppp_generic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/ppp_generic.c 2011-11-16 18:39:07.000000000 -0500 +@@ -987,7 +987,6 @@ ppp_net_ioctl(struct net_device *dev, st + 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: +@@ -1009,8 +1008,7 @@ ppp_net_ioctl(struct net_device *dev, st + 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 -urNp linux-3.1.1/drivers/net/r8169.c linux-3.1.1/drivers/net/r8169.c +--- linux-3.1.1/drivers/net/r8169.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/r8169.c 2011-11-16 18:39:07.000000000 -0500 +@@ -663,12 +663,12 @@ 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; + + int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv); + int (*get_settings)(struct net_device *, struct ethtool_cmd *); +diff -urNp linux-3.1.1/drivers/net/sis190.c linux-3.1.1/drivers/net/sis190.c +--- linux-3.1.1/drivers/net/sis190.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/sis190.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1624,7 +1624,7 @@ static int __devinit sis190_get_mac_addr + 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 -urNp linux-3.1.1/drivers/net/sundance.c linux-3.1.1/drivers/net/sundance.c +--- linux-3.1.1/drivers/net/sundance.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/sundance.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/tg3.h linux-3.1.1/drivers/net/tg3.h +--- linux-3.1.1/drivers/net/tg3.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tg3.h 2011-11-16 18:39:07.000000000 -0500 +@@ -134,6 +134,7 @@ + #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 -urNp linux-3.1.1/drivers/net/tokenring/abyss.c linux-3.1.1/drivers/net/tokenring/abyss.c +--- linux-3.1.1/drivers/net/tokenring/abyss.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tokenring/abyss.c 2011-11-16 18:39:07.000000000 -0500 +@@ -451,10 +451,12 @@ 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 -urNp linux-3.1.1/drivers/net/tokenring/madgemc.c linux-3.1.1/drivers/net/tokenring/madgemc.c +--- linux-3.1.1/drivers/net/tokenring/madgemc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tokenring/madgemc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -744,9 +744,11 @@ 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 -urNp linux-3.1.1/drivers/net/tokenring/proteon.c linux-3.1.1/drivers/net/tokenring/proteon.c +--- linux-3.1.1/drivers/net/tokenring/proteon.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tokenring/proteon.c 2011-11-16 18:39:07.000000000 -0500 +@@ -353,9 +353,11 @@ 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 -urNp linux-3.1.1/drivers/net/tokenring/skisa.c linux-3.1.1/drivers/net/tokenring/skisa.c +--- linux-3.1.1/drivers/net/tokenring/skisa.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tokenring/skisa.c 2011-11-16 18:39:07.000000000 -0500 +@@ -363,9 +363,11 @@ 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 -urNp linux-3.1.1/drivers/net/tulip/de2104x.c linux-3.1.1/drivers/net/tulip/de2104x.c +--- linux-3.1.1/drivers/net/tulip/de2104x.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tulip/de2104x.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1795,6 +1795,8 @@ static void __devinit de21041_get_srom_i + struct de_srom_info_leaf *il; + void *bufp; + ++ pax_track_stack(); ++ + /* download entire eeprom */ + for (i = 0; i < DE_EEPROM_WORDS; i++) + ((__le16 *)ee_data)[i] = +diff -urNp linux-3.1.1/drivers/net/tulip/de4x5.c linux-3.1.1/drivers/net/tulip/de4x5.c +--- linux-3.1.1/drivers/net/tulip/de4x5.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tulip/de4x5.c 2011-11-16 18:39:07.000000000 -0500 +@@ -5397,7 +5397,7 @@ de4x5_ioctl(struct net_device *dev, stru + 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 */ +@@ -5437,7 +5437,7 @@ de4x5_ioctl(struct net_device *dev, stru + 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 -urNp linux-3.1.1/drivers/net/tulip/eeprom.c linux-3.1.1/drivers/net/tulip/eeprom.c +--- linux-3.1.1/drivers/net/tulip/eeprom.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tulip/eeprom.c 2011-11-16 18:39:07.000000000 -0500 +@@ -81,7 +81,7 @@ static struct eeprom_fixup eeprom_fixups + {NULL}}; + + +-static const char *block_name[] __devinitdata = { ++static const char *block_name[] __devinitconst = { + "21140 non-MII", + "21140 MII PHY", + "21142 Serial PHY", +diff -urNp linux-3.1.1/drivers/net/tulip/winbond-840.c linux-3.1.1/drivers/net/tulip/winbond-840.c +--- linux-3.1.1/drivers/net/tulip/winbond-840.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/tulip/winbond-840.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/usb/hso.c linux-3.1.1/drivers/net/usb/hso.c +--- linux-3.1.1/drivers/net/usb/hso.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/usb/hso.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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_ + 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_cal + 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_st + 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_st + 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_ + + /* 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(struc + + /* 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 *ur + 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_interfa + /* 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 -urNp linux-3.1.1/drivers/net/vmxnet3/vmxnet3_ethtool.c linux-3.1.1/drivers/net/vmxnet3/vmxnet3_ethtool.c +--- linux-3.1.1/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-11-16 18:39:07.000000000 -0500 +@@ -601,8 +601,7 @@ vmxnet3_set_rss_indir(struct net_device + * Return with error code if any of the queue indices + * is out of range + */ +- if (p->ring_index[i] < 0 || +- p->ring_index[i] >= adapter->num_rx_queues) ++ if (p->ring_index[i] >= adapter->num_rx_queues) + return -EINVAL; + } + +diff -urNp linux-3.1.1/drivers/net/vxge/vxge-config.h linux-3.1.1/drivers/net/vxge/vxge-config.h +--- linux-3.1.1/drivers/net/vxge/vxge-config.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/vxge/vxge-config.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/vxge/vxge-main.c linux-3.1.1/drivers/net/vxge/vxge-main.c +--- linux-3.1.1/drivers/net/vxge/vxge-main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/vxge/vxge-main.c 2011-11-16 18:40:22.000000000 -0500 +@@ -100,6 +100,8 @@ static inline void VXGE_COMPLETE_VPATH_T + struct sk_buff *completed[NR_SKB_COMPLETED]; + int more; + ++ pax_track_stack(); ++ + do { + more = 0; + skb_ptr = completed; +@@ -1915,6 +1917,8 @@ static enum vxge_hw_status vxge_rth_conf + u8 mtable[256] = {0}; /* CPU to vpath mapping */ + int index; + ++ pax_track_stack(); ++ + /* + * Filling + * - itable with bucket numbers +diff -urNp linux-3.1.1/drivers/net/vxge/vxge-traffic.h linux-3.1.1/drivers/net/vxge/vxge-traffic.h +--- linux-3.1.1/drivers/net/vxge/vxge-traffic.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/vxge/vxge-traffic.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/wan/hdlc_x25.c linux-3.1.1/drivers/net/wan/hdlc_x25.c +--- linux-3.1.1/drivers/net/wan/hdlc_x25.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wan/hdlc_x25.c 2011-11-16 18:39:07.000000000 -0500 +@@ -134,16 +134,16 @@ static netdev_tx_t x25_xmit(struct sk_bu + + static int x25_open(struct net_device *dev) + { +- struct lapb_register_struct cb; ++ static struct lapb_register_struct cb = { ++ .connect_confirmation = x25_connected, ++ .connect_indication = x25_connected, ++ .disconnect_confirmation = x25_disconnected, ++ .disconnect_indication = x25_disconnected, ++ .data_indication = x25_data_indication, ++ .data_transmit = x25_data_transmit ++ }; + int result; + +- cb.connect_confirmation = x25_connected; +- cb.connect_indication = x25_connected; +- cb.disconnect_confirmation = x25_disconnected; +- cb.disconnect_indication = x25_disconnected; +- cb.data_indication = x25_data_indication; +- cb.data_transmit = x25_data_transmit; +- + result = lapb_register(dev, &cb); + if (result != LAPB_OK) + return result; +diff -urNp linux-3.1.1/drivers/net/wimax/i2400m/usb-fw.c linux-3.1.1/drivers/net/wimax/i2400m/usb-fw.c +--- linux-3.1.1/drivers/net/wimax/i2400m/usb-fw.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wimax/i2400m/usb-fw.c 2011-11-16 18:40:22.000000000 -0500 +@@ -287,6 +287,8 @@ ssize_t i2400mu_bus_bm_wait_for_ack(stru + int do_autopm = 1; + DECLARE_COMPLETION_ONSTACK(notif_completion); + ++ pax_track_stack(); ++ + d_fnstart(8, dev, "(i2400m %p ack %p size %zu)\n", + i2400m, ack, ack_size); + BUG_ON(_ack == i2400m->bm_ack_buf); +diff -urNp linux-3.1.1/drivers/net/wireless/airo.c linux-3.1.1/drivers/net/wireless/airo.c +--- linux-3.1.1/drivers/net/wireless/airo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/airo.c 2011-11-16 18:40:22.000000000 -0500 +@@ -3003,6 +3003,8 @@ static void airo_process_scan_results (s + BSSListElement * loop_net; + BSSListElement * tmp_net; + ++ pax_track_stack(); ++ + /* Blow away current list of scan results */ + list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) { + list_move_tail (&loop_net->list, &ai->network_free_list); +@@ -3794,6 +3796,8 @@ static u16 setup_card(struct airo_info * + WepKeyRid wkr; + int rc; + ++ pax_track_stack(); ++ + memset( &mySsid, 0, sizeof( mySsid ) ); + kfree (ai->flash); + ai->flash = NULL; +@@ -4753,6 +4757,8 @@ static int proc_stats_rid_open( struct i + __le32 *vals = stats.vals; + int len; + ++ pax_track_stack(); ++ + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; +@@ -5476,6 +5482,8 @@ static int proc_BSSList_open( struct ino + /* If doLoseSync is not 1, we won't do a Lose Sync */ + int doLoseSync = -1; + ++ pax_track_stack(); ++ + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; +@@ -7181,6 +7189,8 @@ static int airo_get_aplist(struct net_de + int i; + int loseSync = capable(CAP_NET_ADMIN) ? 1: -1; + ++ pax_track_stack(); ++ + qual = kmalloc(IW_MAX_AP * sizeof(*qual), GFP_KERNEL); + if (!qual) + return -ENOMEM; +@@ -7741,6 +7751,8 @@ static void airo_read_wireless_stats(str + CapabilityRid cap_rid; + __le32 *vals = stats_rid.vals; + ++ pax_track_stack(); ++ + /* Get stats out of the card */ + clear_bit(JOB_WSTATS, &local->jobs); + if (local->power.event) { +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath5k/debug.c linux-3.1.1/drivers/net/wireless/ath/ath5k/debug.c +--- linux-3.1.1/drivers/net/wireless/ath/ath5k/debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath5k/debug.c 2011-11-16 19:08:21.000000000 -0500 +@@ -203,6 +203,8 @@ static ssize_t read_file_beacon(struct f + unsigned int v; + u64 tsf; + ++ pax_track_stack(); ++ + v = ath5k_hw_reg_read(ah, AR5K_BEACON); + len += snprintf(buf + len, sizeof(buf) - len, + "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", +@@ -321,6 +323,8 @@ static ssize_t read_file_debug(struct fi + unsigned int len = 0; + unsigned int i; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level); + +@@ -492,6 +496,8 @@ static ssize_t read_file_misc(struct fil + unsigned int len = 0; + u32 filt = ath5k_hw_get_rx_filter(ah); + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n", + ah->bssidmask); + len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ", +@@ -548,6 +554,8 @@ static ssize_t read_file_frameerrors(str + unsigned int len = 0; + int i; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "RX\n---------------------\n"); + len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n", +@@ -665,6 +673,8 @@ static ssize_t read_file_ani(struct file + char buf[700]; + unsigned int len = 0; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "HW has PHY error counters:\t%s\n", + ah->ah_capabilities.cap_has_phyerr_counters ? +@@ -829,6 +839,8 @@ static ssize_t read_file_queue(struct fi + struct ath5k_buf *bf, *bf0; + int i, n; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "available txbuffers: %d\n", ah->txbuf_len); + +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_calib.c linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_calib.c +--- linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-11-16 18:40:22.000000000 -0500 +@@ -758,6 +758,8 @@ static void ar9003_hw_tx_iq_cal_post_pro + int i, im, j; + int nmeasurement; + ++ pax_track_stack(); ++ + for (i = 0; i < AR9300_MAX_CHAINS; i++) { + if (ah->txchainmask & (1 << i)) + num_chains++; +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_paprd.c linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +--- linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-11-16 18:40:22.000000000 -0500 +@@ -406,6 +406,8 @@ static bool create_pa_curve(u32 *data_L, + int theta_low_bin = 0; + int i; + ++ pax_track_stack(); ++ + /* disregard any bin that contains <= 16 samples */ + thresh_accum_cnt = 16; + scale_factor = 5; +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath9k/debug.c linux-3.1.1/drivers/net/wireless/ath/ath9k/debug.c +--- linux-3.1.1/drivers/net/wireless/ath/ath9k/debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath9k/debug.c 2011-11-16 18:40:22.000000000 -0500 +@@ -387,6 +387,8 @@ static ssize_t read_file_interrupt(struc + char buf[512]; + unsigned int len = 0; + ++ pax_track_stack(); ++ + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { + len += snprintf(buf + len, sizeof(buf) - len, + "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); +@@ -477,6 +479,8 @@ static ssize_t read_file_wiphy(struct fi + u8 addr[ETH_ALEN]; + u32 tmp; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", + wiphy_name(sc->hw->wiphy), +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath9k/htc_drv_debug.c linux-3.1.1/drivers/net/wireless/ath/ath9k/htc_drv_debug.c +--- linux-3.1.1/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-11-16 18:40:22.000000000 -0500 +@@ -31,6 +31,8 @@ static ssize_t read_file_tgt_int_stats(s + unsigned int len = 0; + int ret = 0; + ++ pax_track_stack(); ++ + memset(&cmd_rsp, 0, sizeof(cmd_rsp)); + + ath9k_htc_ps_wakeup(priv); +@@ -89,6 +91,8 @@ static ssize_t read_file_tgt_tx_stats(st + unsigned int len = 0; + int ret = 0; + ++ pax_track_stack(); ++ + memset(&cmd_rsp, 0, sizeof(cmd_rsp)); + + ath9k_htc_ps_wakeup(priv); +@@ -159,6 +163,8 @@ static ssize_t read_file_tgt_rx_stats(st + unsigned int len = 0; + int ret = 0; + ++ pax_track_stack(); ++ + memset(&cmd_rsp, 0, sizeof(cmd_rsp)); + + ath9k_htc_ps_wakeup(priv); +@@ -203,6 +209,8 @@ static ssize_t read_file_xmit(struct fil + char buf[512]; + unsigned int len = 0; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, + "%20s : %10u\n", "Buffers queued", + priv->debug.tx_stats.buf_queued); +@@ -376,6 +384,8 @@ static ssize_t read_file_slot(struct fil + char buf[512]; + unsigned int len = 0; + ++ pax_track_stack(); ++ + spin_lock_bh(&priv->tx.tx_lock); + + len += snprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : "); +@@ -411,6 +421,8 @@ static ssize_t read_file_queue(struct fi + char buf[512]; + unsigned int len = 0; + ++ pax_track_stack(); ++ + len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n", + "Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue)); + +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath9k/hw.h linux-3.1.1/drivers/net/wireless/ath/ath9k/hw.h +--- linux-3.1.1/drivers/net/wireless/ath/ath9k/hw.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath9k/hw.h 2011-11-16 18:39:07.000000000 -0500 +@@ -588,7 +588,7 @@ 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 +@@ -639,7 +639,7 @@ 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; +@@ -652,7 +652,7 @@ struct ath_nf_limits { + #define AH_UNPLUGGED 0x2 /* The card has been physically removed. */ + + struct ath_hw { +- struct ath_ops reg_ops; ++ ath_ops_no_const reg_ops; + + struct ieee80211_hw *hw; + struct ath_common common; +diff -urNp linux-3.1.1/drivers/net/wireless/ath/ath.h linux-3.1.1/drivers/net/wireless/ath/ath.h +--- linux-3.1.1/drivers/net/wireless/ath/ath.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ath/ath.h 2011-11-16 18:39:07.000000000 -0500 +@@ -121,6 +121,7 @@ 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 -urNp linux-3.1.1/drivers/net/wireless/ipw2x00/ipw2100.c linux-3.1.1/drivers/net/wireless/ipw2x00/ipw2100.c +--- linux-3.1.1/drivers/net/wireless/ipw2x00/ipw2100.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ipw2x00/ipw2100.c 2011-11-16 18:40:22.000000000 -0500 +@@ -2102,6 +2102,8 @@ static int ipw2100_set_essid(struct ipw2 + int err; + DECLARE_SSID_BUF(ssid); + ++ pax_track_stack(); ++ + IPW_DEBUG_HC("SSID: '%s'\n", print_ssid(ssid, essid, ssid_len)); + + if (ssid_len) +@@ -5451,6 +5453,8 @@ static int ipw2100_set_key(struct ipw210 + struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters; + int err; + ++ pax_track_stack(); ++ + IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n", + idx, keylen, len); + +diff -urNp linux-3.1.1/drivers/net/wireless/ipw2x00/libipw_rx.c linux-3.1.1/drivers/net/wireless/ipw2x00/libipw_rx.c +--- linux-3.1.1/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1565,6 +1565,8 @@ static void libipw_process_probe_respons + unsigned long flags; + DECLARE_SSID_BUF(ssid); + ++ pax_track_stack(); ++ + LIBIPW_DEBUG_SCAN("'%s' (%pM" + "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", + print_ssid(ssid, info_element->data, info_element->len), +diff -urNp linux-3.1.1/drivers/net/wireless/iwlegacy/iwl3945-base.c linux-3.1.1/drivers/net/wireless/iwlegacy/iwl3945-base.c +--- linux-3.1.1/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-11-16 18:39:07.000000000 -0500 +@@ -3687,7 +3687,9 @@ static int iwl3945_pci_probe(struct pci_ + */ + if (iwl3945_mod_params.disable_hw_scan) { + IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); +- iwl3945_hw_ops.hw_scan = NULL; ++ pax_open_kernel(); ++ *(void **)&iwl3945_hw_ops.hw_scan = NULL; ++ pax_close_kernel(); + } + + IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); +diff -urNp linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-agn-rs.c linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +--- linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-11-16 18:40:22.000000000 -0500 +@@ -920,6 +920,8 @@ static void rs_tx_status(void *priv_r, s + struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; + struct iwl_rxon_context *ctx = sta_priv->common.ctx; + ++ pax_track_stack(); ++ + IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n"); + + /* Treat uninitialized rate scaling data same as non-existing. */ +@@ -2931,6 +2933,8 @@ static void rs_fill_link_cmd(struct iwl_ + container_of(lq_sta, struct iwl_station_priv, lq_sta); + struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq; + ++ pax_track_stack(); ++ + /* Override starting rate (index 0) if needed for debug purposes */ + rs_dbgfs_set_mcs(lq_sta, &new_rate, index); + +diff -urNp linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debugfs.c linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debugfs.c +--- linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-11-16 18:40:22.000000000 -0500 +@@ -561,6 +561,8 @@ static ssize_t iwl_dbgfs_status_read(str + int pos = 0; + const size_t bufsz = sizeof(buf); + ++ pax_track_stack(); ++ + pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n", + test_bit(STATUS_HCMD_ACTIVE, &priv->status)); + pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n", +@@ -693,6 +695,8 @@ static ssize_t iwl_dbgfs_qos_read(struct + char buf[256 * NUM_IWL_RXON_CTX]; + const size_t bufsz = sizeof(buf); + ++ pax_track_stack(); ++ + for_each_context(priv, ctx) { + pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", + ctx->ctxid); +diff -urNp linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debug.h linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debug.h +--- linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-11-16 18:39:07.000000000 -0500 +@@ -68,8 +68,8 @@ do { + } while (0) + + #else +-#define IWL_DEBUG(__priv, level, fmt, args...) +-#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) ++#define IWL_DEBUG(__priv, level, fmt, args...) do {} while (0) ++#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) do {} while (0) + static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, + const void *p, u32 len) + {} +diff -urNp linux-3.1.1/drivers/net/wireless/iwmc3200wifi/debugfs.c linux-3.1.1/drivers/net/wireless/iwmc3200wifi/debugfs.c +--- linux-3.1.1/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-11-16 18:40:22.000000000 -0500 +@@ -327,6 +327,8 @@ static ssize_t iwm_debugfs_fw_err_read(s + int buf_len = 512; + size_t len = 0; + ++ pax_track_stack(); ++ + if (*ppos != 0) + return 0; + if (count < sizeof(buf)) +diff -urNp linux-3.1.1/drivers/net/wireless/mac80211_hwsim.c linux-3.1.1/drivers/net/wireless/mac80211_hwsim.c +--- linux-3.1.1/drivers/net/wireless/mac80211_hwsim.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/mac80211_hwsim.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1670,9 +1670,11 @@ static int __init init_mac80211_hwsim(vo + 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 -urNp linux-3.1.1/drivers/net/wireless/mwifiex/main.h linux-3.1.1/drivers/net/wireless/mwifiex/main.h +--- linux-3.1.1/drivers/net/wireless/mwifiex/main.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/mwifiex/main.h 2011-11-16 18:39:07.000000000 -0500 +@@ -560,7 +560,7 @@ struct mwifiex_if_ops { + + void (*update_mp_end_port) (struct mwifiex_adapter *, u16); + void (*cleanup_mpa_buf) (struct mwifiex_adapter *); +-}; ++} __no_const; + + struct mwifiex_adapter { + struct mwifiex_private *priv[MWIFIEX_MAX_BSS_NUM]; +diff -urNp linux-3.1.1/drivers/net/wireless/rndis_wlan.c linux-3.1.1/drivers/net/wireless/rndis_wlan.c +--- linux-3.1.1/drivers/net/wireless/rndis_wlan.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/rndis_wlan.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1277,7 +1277,7 @@ static int set_rts_threshold(struct usbn + + 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 -urNp linux-3.1.1/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c linux-3.1.1/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c +--- linux-3.1.1/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-11-16 18:40:22.000000000 -0500 +@@ -837,6 +837,8 @@ bool _rtl92c_phy_sw_chnl_step_by_step(st + u8 rfpath; + u8 num_total_rfpath = rtlphy->num_total_rfpath; + ++ pax_track_stack(); ++ + precommoncmdcnt = 0; + _rtl92c_phy_set_sw_chnl_cmdarray(precommoncmd, precommoncmdcnt++, + MAX_PRECMD_CNT, +diff -urNp linux-3.1.1/drivers/net/wireless/wl1251/wl1251.h linux-3.1.1/drivers/net/wireless/wl1251/wl1251.h +--- linux-3.1.1/drivers/net/wireless/wl1251/wl1251.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/wl1251/wl1251.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/net/wireless/wl12xx/spi.c linux-3.1.1/drivers/net/wireless/wl12xx/spi.c +--- linux-3.1.1/drivers/net/wireless/wl12xx/spi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/net/wireless/wl12xx/spi.c 2011-11-16 18:40:22.000000000 -0500 +@@ -281,6 +281,8 @@ static void wl1271_spi_raw_write(struct + u32 chunk_len; + int i; + ++ pax_track_stack(); ++ + WARN_ON(len > WL1271_AGGR_BUFFER_SIZE); + + spi_message_init(&m); +diff -urNp linux-3.1.1/drivers/oprofile/buffer_sync.c linux-3.1.1/drivers/oprofile/buffer_sync.c +--- linux-3.1.1/drivers/oprofile/buffer_sync.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/buffer_sync.c 2011-11-16 18:39:07.000000000 -0500 +@@ -343,7 +343,7 @@ static void add_data(struct op_entry *en + 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 + /* 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 -urNp linux-3.1.1/drivers/oprofile/event_buffer.c linux-3.1.1/drivers/oprofile/event_buffer.c +--- linux-3.1.1/drivers/oprofile/event_buffer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/event_buffer.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/oprofile/oprof.c linux-3.1.1/drivers/oprofile/oprof.c +--- linux-3.1.1/drivers/oprofile/oprof.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/oprof.c 2011-11-16 18:39:07.000000000 -0500 +@@ -110,7 +110,7 @@ static void switch_worker(struct work_st + if (oprofile_ops.switch_events()) + return; + +- atomic_inc(&oprofile_stats.multiplex_counter); ++ atomic_inc_unchecked(&oprofile_stats.multiplex_counter); + start_switch_worker(); + } + +diff -urNp linux-3.1.1/drivers/oprofile/oprofilefs.c linux-3.1.1/drivers/oprofile/oprofilefs.c +--- linux-3.1.1/drivers/oprofile/oprofilefs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/oprofilefs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -186,7 +186,7 @@ static const struct file_operations atom + + + 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 -urNp linux-3.1.1/drivers/oprofile/oprofile_stats.c linux-3.1.1/drivers/oprofile/oprofile_stats.c +--- linux-3.1.1/drivers/oprofile/oprofile_stats.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/oprofile_stats.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/oprofile/oprofile_stats.h linux-3.1.1/drivers/oprofile/oprofile_stats.h +--- linux-3.1.1/drivers/oprofile/oprofile_stats.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/oprofile/oprofile_stats.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/parport/procfs.c linux-3.1.1/drivers/parport/procfs.c +--- linux-3.1.1/drivers/parport/procfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/parport/procfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *t + + *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 + + *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 -urNp linux-3.1.1/drivers/pci/hotplug/cpci_hotplug.h linux-3.1.1/drivers/pci/hotplug/cpci_hotplug.h +--- linux-3.1.1/drivers/pci/hotplug/cpci_hotplug.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/hotplug/cpci_hotplug.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/pci/hotplug/cpqphp_nvram.c linux-3.1.1/drivers/pci/hotplug/cpqphp_nvram.c +--- linux-3.1.1/drivers/pci/hotplug/cpqphp_nvram.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/hotplug/cpqphp_nvram.c 2011-11-16 18:39:07.000000000 -0500 +@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_ + + 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 -urNp linux-3.1.1/drivers/pci/pcie/aspm.c linux-3.1.1/drivers/pci/pcie/aspm.c +--- linux-3.1.1/drivers/pci/pcie/aspm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/pcie/aspm.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/pci/probe.c linux-3.1.1/drivers/pci/probe.c +--- linux-3.1.1/drivers/pci/probe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/probe.c 2011-11-16 18:39:07.000000000 -0500 +@@ -136,7 +136,7 @@ int __pci_read_base(struct pci_dev *dev, + u32 l, sz, mask; + u16 orig_cmd; + +- 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 -urNp linux-3.1.1/drivers/pci/proc.c linux-3.1.1/drivers/pci/proc.c +--- linux-3.1.1/drivers/pci/proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/proc.c 2011-11-16 18:40:22.000000000 -0500 +@@ -476,7 +476,16 @@ static const struct file_operations proc + 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 -urNp linux-3.1.1/drivers/pci/xen-pcifront.c linux-3.1.1/drivers/pci/xen-pcifront.c +--- linux-3.1.1/drivers/pci/xen-pcifront.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pci/xen-pcifront.c 2011-11-16 18:40:22.000000000 -0500 +@@ -187,6 +187,8 @@ static int pcifront_bus_read(struct pci_ + struct pcifront_sd *sd = bus->sysdata; + struct pcifront_device *pdev = pcifront_get_pdev(sd); + ++ pax_track_stack(); ++ + if (verbose_request) + dev_info(&pdev->xdev->dev, + "read dev=%04x:%02x:%02x.%01x - offset %x size %d\n", +@@ -226,6 +228,8 @@ static int pcifront_bus_write(struct pci + struct pcifront_sd *sd = bus->sysdata; + struct pcifront_device *pdev = pcifront_get_pdev(sd); + ++ pax_track_stack(); ++ + if (verbose_request) + dev_info(&pdev->xdev->dev, + "write dev=%04x:%02x:%02x.%01x - " +@@ -258,6 +262,8 @@ static int pci_frontend_enable_msix(stru + struct pcifront_device *pdev = pcifront_get_pdev(sd); + struct msi_desc *entry; + ++ pax_track_stack(); ++ + if (nvec > SH_INFO_MAX_VEC) { + dev_err(&dev->dev, "too much vector for pci frontend: %x." + " Increase SH_INFO_MAX_VEC.\n", nvec); +@@ -309,6 +315,8 @@ static void pci_frontend_disable_msix(st + struct pcifront_sd *sd = dev->bus->sysdata; + struct pcifront_device *pdev = pcifront_get_pdev(sd); + ++ pax_track_stack(); ++ + err = do_pci_op(pdev, &op); + + /* What should do for error ? */ +@@ -328,6 +336,8 @@ static int pci_frontend_enable_msi(struc + struct pcifront_sd *sd = dev->bus->sysdata; + struct pcifront_device *pdev = pcifront_get_pdev(sd); + ++ pax_track_stack(); ++ + err = do_pci_op(pdev, &op); + if (likely(!err)) { + vector[0] = op.value; +diff -urNp linux-3.1.1/drivers/platform/x86/thinkpad_acpi.c linux-3.1.1/drivers/platform/x86/thinkpad_acpi.c +--- linux-3.1.1/drivers/platform/x86/thinkpad_acpi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/platform/x86/thinkpad_acpi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 & +diff -urNp linux-3.1.1/drivers/pnp/pnpbios/bioscalls.c linux-3.1.1/drivers/pnp/pnpbios/bioscalls.c +--- linux-3.1.1/drivers/pnp/pnpbios/bioscalls.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pnp/pnpbios/bioscalls.c 2011-11-16 18:39:07.000000000 -0500 +@@ -59,7 +59,7 @@ 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); + + /* +@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func + + 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); +@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func + :"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. */ +@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 n + 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; + +@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_i + 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) +@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_i + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], + (unsigned long)__va(header->fields.pm16dseg)); + } ++ ++ pax_close_kernel(); + } +diff -urNp linux-3.1.1/drivers/pnp/resource.c linux-3.1.1/drivers/pnp/resource.c +--- linux-3.1.1/drivers/pnp/resource.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/pnp/resource.c 2011-11-16 18:39:07.000000000 -0500 +@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, s + 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, s + 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 -urNp linux-3.1.1/drivers/power/bq27x00_battery.c linux-3.1.1/drivers/power/bq27x00_battery.c +--- linux-3.1.1/drivers/power/bq27x00_battery.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/power/bq27x00_battery.c 2011-11-16 18:39:07.000000000 -0500 +@@ -67,7 +67,7 @@ + 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 -urNp linux-3.1.1/drivers/regulator/max8660.c linux-3.1.1/drivers/regulator/max8660.c +--- linux-3.1.1/drivers/regulator/max8660.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/regulator/max8660.c 2011-11-16 18:39:07.000000000 -0500 +@@ -383,8 +383,10 @@ static int __devinit max8660_probe(struc + 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 -urNp linux-3.1.1/drivers/regulator/mc13892-regulator.c linux-3.1.1/drivers/regulator/mc13892-regulator.c +--- linux-3.1.1/drivers/regulator/mc13892-regulator.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/regulator/mc13892-regulator.c 2011-11-16 18:39:07.000000000 -0500 +@@ -564,10 +564,12 @@ static int __devinit mc13892_regulator_p + } + 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(); + for (i = 0; i < pdata->num_regulators; i++) { + init_data = &pdata->regulators[i]; + priv->regulators[i] = regulator_register( +diff -urNp linux-3.1.1/drivers/rtc/rtc-dev.c linux-3.1.1/drivers/rtc/rtc-dev.c +--- linux-3.1.1/drivers/rtc/rtc-dev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/rtc/rtc-dev.c 2011-11-16 18:40:22.000000000 -0500 +@@ -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 *f + if (copy_from_user(&tm, uarg, sizeof(tm))) + return -EFAULT; + ++ gr_log_timechange(); ++ + return rtc_set_time(rtc, &tm); + + case RTC_PIE_ON: +diff -urNp linux-3.1.1/drivers/scsi/aacraid/aacraid.h linux-3.1.1/drivers/scsi/aacraid/aacraid.h +--- linux-3.1.1/drivers/scsi/aacraid/aacraid.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/aacraid/aacraid.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/scsi/aacraid/commctrl.c linux-3.1.1/drivers/scsi/aacraid/commctrl.c +--- linux-3.1.1/drivers/scsi/aacraid/commctrl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/aacraid/commctrl.c 2011-11-16 18:40:22.000000000 -0500 +@@ -482,6 +482,7 @@ static int aac_send_raw_srb(struct aac_d + u32 actual_fibsize64, actual_fibsize = 0; + int i; + ++ pax_track_stack(); + + if (dev->in_reset) { + dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n")); +diff -urNp linux-3.1.1/drivers/scsi/aacraid/linit.c linux-3.1.1/drivers/scsi/aacraid/linit.c +--- linux-3.1.1/drivers/scsi/aacraid/linit.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/aacraid/linit.c 2011-11-16 18:39:07.000000000 -0500 +@@ -92,7 +92,7 @@ static DECLARE_PCI_DEVICE_TABLE(aac_pci_ + #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 -urNp linux-3.1.1/drivers/scsi/aic94xx/aic94xx_init.c linux-3.1.1/drivers/scsi/aic94xx/aic94xx_init.c +--- linux-3.1.1/drivers/scsi/aic94xx/aic94xx_init.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/aic94xx/aic94xx_init.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1012,7 +1012,7 @@ static struct sas_domain_function_templa + .lldd_control_phy = asd_control_phy, + }; + +-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 -urNp linux-3.1.1/drivers/scsi/bfa/bfad.c linux-3.1.1/drivers/scsi/bfa/bfad.c +--- linux-3.1.1/drivers/scsi/bfa/bfad.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfad.c 2011-11-16 19:01:15.000000000 -0500 +@@ -1019,6 +1019,8 @@ bfad_start_ops(struct bfad_s *bfad) { + struct bfad_vport_s *vport, *vport_new; + struct bfa_fcs_driver_info_s driver_info; + ++ pax_track_stack(); ++ + /* Limit min/max. xfer size to [64k-32MB] */ + if (max_xfer_size < BFAD_MIN_SECTORS >> 1) + max_xfer_size = BFAD_MIN_SECTORS >> 1; +diff -urNp linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.c linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.c +--- linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.c 2011-11-16 18:39:07.000000000 -0500 +@@ -4179,7 +4179,7 @@ bfa_itn_create(struct bfa_s *bfa, struct + 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 -urNp linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.h linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.h +--- linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa_fcpim.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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)); +@@ -149,7 +150,7 @@ 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 -urNp linux-3.1.1/drivers/scsi/bfa/bfa_fcs_lport.c linux-3.1.1/drivers/scsi/bfa/bfa_fcs_lport.c +--- linux-3.1.1/drivers/scsi/bfa/bfa_fcs_lport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa_fcs_lport.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1700,6 +1700,8 @@ bfa_fcs_lport_fdmi_build_rhba_pyld(struc + u16 len, count; + u16 templen; + ++ pax_track_stack(); ++ + /* + * get hba attributes + */ +@@ -1977,6 +1979,8 @@ bfa_fcs_lport_fdmi_build_portattr_block( + u8 count = 0; + u16 templen; + ++ pax_track_stack(); ++ + /* + * get port attributes + */ +diff -urNp linux-3.1.1/drivers/scsi/bfa/bfa_fcs_rport.c linux-3.1.1/drivers/scsi/bfa/bfa_fcs_rport.c +--- linux-3.1.1/drivers/scsi/bfa/bfa_fcs_rport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa_fcs_rport.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1871,6 +1871,8 @@ bfa_fcs_rport_process_rpsc(struct bfa_fc + struct fc_rpsc_speed_info_s speeds; + struct bfa_port_attr_s pport_attr; + ++ pax_track_stack(); ++ + bfa_trc(port->fcs, rx_fchs->s_id); + bfa_trc(port->fcs, rx_fchs->d_id); + +diff -urNp linux-3.1.1/drivers/scsi/bfa/bfa.h linux-3.1.1/drivers/scsi/bfa/bfa.h +--- linux-3.1.1/drivers/scsi/bfa/bfa.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/scsi/bfa/bfa_ioc.h linux-3.1.1/drivers/scsi/bfa/bfa_ioc.h +--- linux-3.1.1/drivers/scsi/bfa/bfa_ioc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/bfa/bfa_ioc.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/scsi/BusLogic.c linux-3.1.1/drivers/scsi/BusLogic.c +--- linux-3.1.1/drivers/scsi/BusLogic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/BusLogic.c 2011-11-16 18:40:22.000000000 -0500 +@@ -962,6 +962,8 @@ static int __init BusLogic_InitializeFla + static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter + *PrototypeHostAdapter) + { ++ pax_track_stack(); ++ + /* + If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint + Host Adapters; otherwise, default to the standard ISA MultiMaster probe. +diff -urNp linux-3.1.1/drivers/scsi/dpt_i2o.c linux-3.1.1/drivers/scsi/dpt_i2o.c +--- linux-3.1.1/drivers/scsi/dpt_i2o.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/dpt_i2o.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1811,6 +1811,8 @@ static int adpt_i2o_passthru(adpt_hba* p + dma_addr_t addr; + ulong flags = 0; + ++ pax_track_stack(); ++ + memset(&msg, 0, MAX_MESSAGE_SIZE*4); + // get user msg size in u32s + if(get_user(size, &user_msg[0])){ +@@ -2317,6 +2319,8 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pH + s32 rcode; + dma_addr_t addr; + ++ pax_track_stack(); ++ + memset(msg, 0 , sizeof(msg)); + len = scsi_bufflen(cmd); + direction = 0x00000000; +diff -urNp linux-3.1.1/drivers/scsi/eata.c linux-3.1.1/drivers/scsi/eata.c +--- linux-3.1.1/drivers/scsi/eata.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/eata.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1087,6 +1087,8 @@ static int port_detect(unsigned long por + struct hostdata *ha; + char name[16]; + ++ pax_track_stack(); ++ + sprintf(name, "%s%d", driver_name, j); + + if (!request_region(port_base, REGION_SIZE, driver_name)) { +diff -urNp linux-3.1.1/drivers/scsi/fcoe/fcoe_ctlr.c linux-3.1.1/drivers/scsi/fcoe/fcoe_ctlr.c +--- linux-3.1.1/drivers/scsi/fcoe/fcoe_ctlr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/fcoe/fcoe_ctlr.c 2011-11-16 18:40:22.000000000 -0500 +@@ -2503,6 +2503,8 @@ static int fcoe_ctlr_vn_recv(struct fcoe + } buf; + int rc; + ++ pax_track_stack(); ++ + fiph = (struct fip_header *)skb->data; + sub = fiph->fip_subcode; + +diff -urNp linux-3.1.1/drivers/scsi/gdth.c linux-3.1.1/drivers/scsi/gdth.c +--- linux-3.1.1/drivers/scsi/gdth.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/gdth.c 2011-11-16 18:40:22.000000000 -0500 +@@ -4107,6 +4107,8 @@ static int ioc_lockdrv(void __user *arg) + unsigned long flags; + gdth_ha_str *ha; + ++ pax_track_stack(); ++ + if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv))) + return -EFAULT; + ha = gdth_find_ha(ldrv.ionode); +@@ -4139,6 +4141,8 @@ static int ioc_resetdrv(void __user *arg + gdth_ha_str *ha; + int rval; + ++ pax_track_stack(); ++ + if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) || + res.number >= MAX_HDRIVES) + return -EFAULT; +@@ -4174,6 +4178,8 @@ static int ioc_general(void __user *arg, + gdth_ha_str *ha; + int rval; + ++ pax_track_stack(); ++ + if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general))) + return -EFAULT; + ha = gdth_find_ha(gen.ionode); +@@ -4642,6 +4648,9 @@ static void gdth_flush(gdth_ha_str *ha) + int i; + gdth_cmd_str gdtcmd; + char cmnd[MAX_COMMAND_SIZE]; ++ ++ pax_track_stack(); ++ + memset(cmnd, 0xff, MAX_COMMAND_SIZE); + + TRACE2(("gdth_flush() hanum %d\n", ha->hanum)); +diff -urNp linux-3.1.1/drivers/scsi/gdth_proc.c linux-3.1.1/drivers/scsi/gdth_proc.c +--- linux-3.1.1/drivers/scsi/gdth_proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/gdth_proc.c 2011-11-16 18:40:22.000000000 -0500 +@@ -47,6 +47,9 @@ static int gdth_set_asc_info(struct Scsi + u64 paddr; + + char cmnd[MAX_COMMAND_SIZE]; ++ ++ pax_track_stack(); ++ + memset(cmnd, 0xff, 12); + memset(&gdtcmd, 0, sizeof(gdth_cmd_str)); + +@@ -175,6 +178,8 @@ static int gdth_get_info(char *buffer,ch + gdth_hget_str *phg; + char cmnd[MAX_COMMAND_SIZE]; + ++ pax_track_stack(); ++ + gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL); + estr = kmalloc(sizeof(*estr), GFP_KERNEL); + if (!gdtcmd || !estr) +diff -urNp linux-3.1.1/drivers/scsi/hosts.c linux-3.1.1/drivers/scsi/hosts.c +--- linux-3.1.1/drivers/scsi/hosts.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/hosts.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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) +@@ -357,7 +357,7 @@ struct Scsi_Host *scsi_host_alloc(struct + * 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 -urNp linux-3.1.1/drivers/scsi/hpsa.c linux-3.1.1/drivers/scsi/hpsa.c +--- linux-3.1.1/drivers/scsi/hpsa.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/hpsa.c 2011-11-16 18:39:07.000000000 -0500 +@@ -498,7 +498,7 @@ static inline u32 next_command(struct ct + 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 */ +@@ -2955,7 +2955,7 @@ 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; + } +@@ -2965,7 +2965,7 @@ 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); +@@ -2974,17 +2974,17 @@ 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); + } + +@@ -3881,7 +3881,7 @@ static int __devinit hpsa_pci_init(struc + 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"); +@@ -4158,7 +4158,7 @@ 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; +@@ -4192,7 +4192,7 @@ 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, +@@ -4211,9 +4211,9 @@ 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) +@@ -4234,7 +4234,7 @@ 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 */ +@@ -4287,7 +4287,7 @@ static void hpsa_shutdown(struct pci_dev + * 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) +@@ -4450,7 +4450,7 @@ static __devinit void hpsa_enter_perform + 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 -urNp linux-3.1.1/drivers/scsi/hpsa.h linux-3.1.1/drivers/scsi/hpsa.h +--- linux-3.1.1/drivers/scsi/hpsa.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/hpsa.h 2011-11-16 18:39:07.000000000 -0500 +@@ -73,7 +73,7 @@ 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 -urNp linux-3.1.1/drivers/scsi/ips.h linux-3.1.1/drivers/scsi/ips.h +--- linux-3.1.1/drivers/scsi/ips.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/ips.h 2011-11-16 18:39:07.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/scsi/libfc/fc_exch.c linux-3.1.1/drivers/scsi/libfc/fc_exch.c +--- linux-3.1.1/drivers/scsi/libfc/fc_exch.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/libfc/fc_exch.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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; + }; + +@@ -718,7 +718,7 @@ static struct fc_exch *fc_exch_em_alloc( + /* 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)); +@@ -779,7 +779,7 @@ 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; + } +@@ -922,7 +922,7 @@ static enum fc_pf_rjt_reason fc_seq_look + 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; + } +@@ -952,7 +952,7 @@ static enum fc_pf_rjt_reason fc_seq_look + 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; + } +@@ -963,7 +963,7 @@ static enum fc_pf_rjt_reason fc_seq_look + } + 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; + } +@@ -980,7 +980,7 @@ static enum fc_pf_rjt_reason fc_seq_look + } 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 +@@ -1430,22 +1430,22 @@ static void fc_exch_recv_seq_resp(struct + + 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); +@@ -1454,7 +1454,7 @@ static void fc_exch_recv_seq_resp(struct + 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; + } + +@@ -1518,9 +1518,9 @@ static void fc_exch_recv_resp(struct fc_ + 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 -urNp linux-3.1.1/drivers/scsi/libsas/sas_ata.c linux-3.1.1/drivers/scsi/libsas/sas_ata.c +--- linux-3.1.1/drivers/scsi/libsas/sas_ata.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/libsas/sas_ata.c 2011-11-16 18:39:07.000000000 -0500 +@@ -368,7 +368,7 @@ static struct ata_port_operations sas_sa + .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 -urNp linux-3.1.1/drivers/scsi/lpfc/lpfc_debugfs.c linux-3.1.1/drivers/scsi/lpfc/lpfc_debugfs.c +--- linux-3.1.1/drivers/scsi/lpfc/lpfc_debugfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/lpfc/lpfc_debugfs.c 2011-11-16 18:40:22.000000000 -0500 +@@ -105,7 +105,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_ + + #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 */ +@@ -146,7 +146,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_v + 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; +@@ -212,7 +212,7 @@ lpfc_debugfs_slow_ring_trc_data(struct l + 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; +@@ -635,14 +635,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport + !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; +@@ -673,14 +673,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_h + !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; +@@ -3828,7 +3828,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor + "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)); +@@ -3874,7 +3874,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor + "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 -urNp linux-3.1.1/drivers/scsi/lpfc/lpfc.h linux-3.1.1/drivers/scsi/lpfc/lpfc.h +--- linux-3.1.1/drivers/scsi/lpfc/lpfc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/lpfc/lpfc.h 2011-11-16 18:39:07.000000000 -0500 +@@ -425,7 +425,7 @@ 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; +@@ -835,8 +835,8 @@ 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; +@@ -850,7 +850,7 @@ struct lpfc_hba { + struct dentry *debug_dumpDif; /* BlockGuard BPL*/ + 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 -urNp linux-3.1.1/drivers/scsi/lpfc/lpfc_init.c linux-3.1.1/drivers/scsi/lpfc/lpfc_init.c +--- linux-3.1.1/drivers/scsi/lpfc/lpfc_init.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/lpfc/lpfc_init.c 2011-11-16 18:39:07.000000000 -0500 +@@ -9969,8 +9969,10 @@ lpfc_init(void) + printk(LPFC_COPYRIGHT "\n"); + + 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 -urNp linux-3.1.1/drivers/scsi/lpfc/lpfc_scsi.c linux-3.1.1/drivers/scsi/lpfc/lpfc_scsi.c +--- linux-3.1.1/drivers/scsi/lpfc/lpfc_scsi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/lpfc/lpfc_scsi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -297,7 +297,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hb + 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) { +@@ -338,7 +338,7 @@ lpfc_rampup_queue_depth(struct lpfc_vpor + 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; +@@ -382,8 +382,8 @@ lpfc_ramp_down_queue_handler(struct lpfc + 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) +@@ -403,8 +403,8 @@ lpfc_ramp_down_queue_handler(struct lpfc + } + } + 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); + } + + /** +@@ -438,8 +438,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_h + } + } + 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 -urNp linux-3.1.1/drivers/scsi/megaraid/megaraid_mbox.c linux-3.1.1/drivers/scsi/megaraid/megaraid_mbox.c +--- linux-3.1.1/drivers/scsi/megaraid/megaraid_mbox.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/megaraid/megaraid_mbox.c 2011-11-16 18:40:22.000000000 -0500 +@@ -3503,6 +3503,8 @@ megaraid_cmm_register(adapter_t *adapter + int rval; + int i; + ++ pax_track_stack(); ++ + // Allocate memory for the base list of scb for management module. + adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL); + +diff -urNp linux-3.1.1/drivers/scsi/osd/osd_initiator.c linux-3.1.1/drivers/scsi/osd/osd_initiator.c +--- linux-3.1.1/drivers/scsi/osd/osd_initiator.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/osd/osd_initiator.c 2011-11-16 18:40:22.000000000 -0500 +@@ -97,6 +97,8 @@ static int _osd_get_print_system_info(st + int nelem = ARRAY_SIZE(get_attrs), a = 0; + int ret; + ++ pax_track_stack(); ++ + or = osd_start_request(od, GFP_KERNEL); + if (!or) + return -ENOMEM; +diff -urNp linux-3.1.1/drivers/scsi/pmcraid.c linux-3.1.1/drivers/scsi/pmcraid.c +--- linux-3.1.1/drivers/scsi/pmcraid.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/pmcraid.c 2011-11-16 18:39:07.000000000 -0500 +@@ -201,8 +201,8 @@ static int pmcraid_slave_alloc(struct sc + 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); +@@ -2677,9 +2677,9 @@ static int pmcraid_error_handler(struct + + /* 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) { +@@ -3535,7 +3535,7 @@ 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; + +@@ -3860,7 +3860,7 @@ 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) { +@@ -4498,7 +4498,7 @@ static void pmcraid_worker_function(stru + + 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); +@@ -5332,8 +5332,8 @@ static int __devinit pmcraid_init_instan + 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); +@@ -6048,7 +6048,7 @@ 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 -urNp linux-3.1.1/drivers/scsi/pmcraid.h linux-3.1.1/drivers/scsi/pmcraid.h +--- linux-3.1.1/drivers/scsi/pmcraid.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/pmcraid.h 2011-11-16 18:39:07.000000000 -0500 +@@ -749,7 +749,7 @@ 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; +@@ -778,7 +778,7 @@ struct pmcraid_instance { + atomic_t outstanding_cmds; + + /* should add/delete resources to mid-layer now ?*/ +- atomic_t expose_resources; ++ atomic_unchecked_t expose_resources; + + + +@@ -814,8 +814,8 @@ 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 -urNp linux-3.1.1/drivers/scsi/qla2xxx/qla_def.h linux-3.1.1/drivers/scsi/qla2xxx/qla_def.h +--- linux-3.1.1/drivers/scsi/qla2xxx/qla_def.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/qla2xxx/qla_def.h 2011-11-16 18:39:07.000000000 -0500 +@@ -2244,7 +2244,7 @@ struct isp_operations { + int (*get_flash_version) (struct scsi_qla_host *, void *); + int (*start_scsi) (srb_t *); + int (*abort_isp) (struct scsi_qla_host *); +-}; ++} __no_const; + + /* MSI-X Support *************************************************************/ + +diff -urNp linux-3.1.1/drivers/scsi/qla4xxx/ql4_def.h linux-3.1.1/drivers/scsi/qla4xxx/ql4_def.h +--- linux-3.1.1/drivers/scsi/qla4xxx/ql4_def.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/qla4xxx/ql4_def.h 2011-11-16 18:39:07.000000000 -0500 +@@ -256,7 +256,7 @@ struct ddb_entry { + atomic_t retry_relogin_timer; /* Min Time between relogins + * (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 */ + + uint16_t port; +diff -urNp linux-3.1.1/drivers/scsi/qla4xxx/ql4_init.c linux-3.1.1/drivers/scsi/qla4xxx/ql4_init.c +--- linux-3.1.1/drivers/scsi/qla4xxx/ql4_init.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/qla4xxx/ql4_init.c 2011-11-16 18:39:07.000000000 -0500 +@@ -680,7 +680,7 @@ static struct ddb_entry * qla4xxx_alloc_ + ddb_entry->fw_ddb_index = fw_ddb_index; + 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); + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + list_add_tail(&ddb_entry->list, &ha->ddb_list); + ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; +@@ -1433,7 +1433,7 @@ int qla4xxx_process_ddb_changed(struct s + if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && + (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); +- atomic_set(&ddb_entry->relogin_retry_count, 0); ++ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); + atomic_set(&ddb_entry->relogin_timer, 0); + clear_bit(DF_RELOGIN, &ddb_entry->flags); + iscsi_unblock_session(ddb_entry->sess); +diff -urNp linux-3.1.1/drivers/scsi/qla4xxx/ql4_os.c linux-3.1.1/drivers/scsi/qla4xxx/ql4_os.c +--- linux-3.1.1/drivers/scsi/qla4xxx/ql4_os.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/qla4xxx/ql4_os.c 2011-11-16 18:39:07.000000000 -0500 +@@ -811,13 +811,13 @@ static void qla4xxx_timer(struct scsi_ql + ddb_entry->fw_ddb_device_state == + DDB_DS_SESSION_FAILED) { + /* Reset retry relogin timer */ +- atomic_inc(&ddb_entry->relogin_retry_count); ++ atomic_inc_unchecked(&ddb_entry->relogin_retry_count); + DEBUG2(printk("scsi%ld: ddb [%d] relogin" + " timed out-retrying" + " relogin (%d)\n", + ha->host_no, + ddb_entry->fw_ddb_index, +- atomic_read(&ddb_entry-> ++ atomic_read_unchecked(&ddb_entry-> + relogin_retry_count)) + ); + start_dpc++; +diff -urNp linux-3.1.1/drivers/scsi/scsi.c linux-3.1.1/drivers/scsi/scsi.c +--- linux-3.1.1/drivers/scsi/scsi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -655,7 +655,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd * + 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 -urNp linux-3.1.1/drivers/scsi/scsi_debug.c linux-3.1.1/drivers/scsi/scsi_debug.c +--- linux-3.1.1/drivers/scsi/scsi_debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_debug.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1493,6 +1493,8 @@ static int resp_mode_select(struct scsi_ + unsigned char arr[SDEBUG_MAX_MSELECT_SZ]; + unsigned char *cmd = (unsigned char *)scp->cmnd; + ++ pax_track_stack(); ++ + if ((errsts = check_readiness(scp, 1, devip))) + return errsts; + memset(arr, 0, sizeof(arr)); +@@ -1590,6 +1592,8 @@ static int resp_log_sense(struct scsi_cm + unsigned char arr[SDEBUG_MAX_LSENSE_SZ]; + unsigned char *cmd = (unsigned char *)scp->cmnd; + ++ pax_track_stack(); ++ + if ((errsts = check_readiness(scp, 1, devip))) + return errsts; + memset(arr, 0, sizeof(arr)); +diff -urNp linux-3.1.1/drivers/scsi/scsi_lib.c linux-3.1.1/drivers/scsi/scsi_lib.c +--- linux-3.1.1/drivers/scsi/scsi_lib.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_lib.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1413,7 +1413,7 @@ static void scsi_kill_request(struct req + 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(), +@@ -1439,9 +1439,9 @@ static void scsi_softirq_done(struct req + + 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 -urNp linux-3.1.1/drivers/scsi/scsi_sysfs.c linux-3.1.1/drivers/scsi/scsi_sysfs.c +--- linux-3.1.1/drivers/scsi/scsi_sysfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_sysfs.c 2011-11-16 18:39:07.000000000 -0500 +@@ -622,7 +622,7 @@ show_iostat_##field(struct device *dev, + 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 -urNp linux-3.1.1/drivers/scsi/scsi_tgt_lib.c linux-3.1.1/drivers/scsi/scsi_tgt_lib.c +--- linux-3.1.1/drivers/scsi/scsi_tgt_lib.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_tgt_lib.c 2011-11-16 18:39:07.000000000 -0500 +@@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct sc + 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 -urNp linux-3.1.1/drivers/scsi/scsi_transport_fc.c linux-3.1.1/drivers/scsi/scsi_transport_fc.c +--- linux-3.1.1/drivers/scsi/scsi_transport_fc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_transport_fc.c 2011-11-16 18:39:07.000000000 -0500 +@@ -484,7 +484,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_ + * 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 +@@ -497,7 +497,7 @@ 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); + +@@ -645,7 +645,7 @@ 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) +@@ -835,7 +835,7 @@ static int fc_str_to_dev_loss(const char + 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 -urNp linux-3.1.1/drivers/scsi/scsi_transport_iscsi.c linux-3.1.1/drivers/scsi/scsi_transport_iscsi.c +--- linux-3.1.1/drivers/scsi/scsi_transport_iscsi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_transport_iscsi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -83,7 +83,7 @@ struct iscsi_internal { + struct device_attribute *session_attrs[ISCSI_SESSION_ATTRS + 1]; + }; + +-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; + + /* +@@ -761,7 +761,7 @@ int iscsi_add_session(struct iscsi_cls_s + 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 (id == ISCSI_MAX_TARGET) { + for (id = 0; id < ISCSI_MAX_TARGET; id++) { +@@ -2200,7 +2200,7 @@ static __init int iscsi_transport_init(v + 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 -urNp linux-3.1.1/drivers/scsi/scsi_transport_srp.c linux-3.1.1/drivers/scsi/scsi_transport_srp.c +--- linux-3.1.1/drivers/scsi/scsi_transport_srp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/scsi_transport_srp.c 2011-11-16 18:39:07.000000000 -0500 +@@ -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 transpo + 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 S + 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 -urNp linux-3.1.1/drivers/scsi/sg.c linux-3.1.1/drivers/scsi/sg.c +--- linux-3.1.1/drivers/scsi/sg.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/sg.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1075,7 +1075,7 @@ sg_ioctl(struct file *filp, unsigned int + 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: +@@ -2310,7 +2310,7 @@ 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}, +@@ -2325,7 +2325,7 @@ sg_proc_init(void) + { + int k, mask; + int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr); +- struct sg_proc_leaf * leaf; ++ const struct sg_proc_leaf * leaf; + + sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL); + if (!sg_proc_sgp) +diff -urNp linux-3.1.1/drivers/scsi/sym53c8xx_2/sym_glue.c linux-3.1.1/drivers/scsi/sym53c8xx_2/sym_glue.c +--- linux-3.1.1/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-11-16 18:40:22.000000000 -0500 +@@ -1756,6 +1756,8 @@ static int __devinit sym2_probe(struct p + int do_iounmap = 0; + int do_disable_device = 1; + ++ pax_track_stack(); ++ + memset(&sym_dev, 0, sizeof(sym_dev)); + memset(&nvram, 0, sizeof(nvram)); + sym_dev.pdev = pdev; +diff -urNp linux-3.1.1/drivers/scsi/vmw_pvscsi.c linux-3.1.1/drivers/scsi/vmw_pvscsi.c +--- linux-3.1.1/drivers/scsi/vmw_pvscsi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/scsi/vmw_pvscsi.c 2011-11-16 18:40:22.000000000 -0500 +@@ -447,6 +447,8 @@ static void pvscsi_setup_all_rings(const + dma_addr_t base; + unsigned i; + ++ pax_track_stack(); ++ + cmd.ringsStatePPN = adapter->ringStatePA >> PAGE_SHIFT; + cmd.reqRingNumPages = adapter->req_pages; + cmd.cmpRingNumPages = adapter->cmp_pages; +diff -urNp linux-3.1.1/drivers/spi/spi.c linux-3.1.1/drivers/spi/spi.c +--- linux-3.1.1/drivers/spi/spi.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/spi/spi.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1023,7 +1023,7 @@ int spi_bus_unlock(struct spi_master *ma + 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 -urNp linux-3.1.1/drivers/spi/spi-dw-pci.c linux-3.1.1/drivers/spi/spi-dw-pci.c +--- linux-3.1.1/drivers/spi/spi-dw-pci.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/spi/spi-dw-pci.c 2011-11-16 18:39:07.000000000 -0500 +@@ -148,7 +148,7 @@ static int spi_resume(struct pci_dev *pd + #define spi_resume NULL + #endif + +-static const struct pci_device_id pci_ids[] __devinitdata = { ++static const struct pci_device_id pci_ids[] __devinitconst = { + /* Intel MID platform SPI controller 0 */ + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0800) }, + {}, +diff -urNp linux-3.1.1/drivers/staging/ath6kl/os/linux/ar6000_drv.c linux-3.1.1/drivers/staging/ath6kl/os/linux/ar6000_drv.c +--- linux-3.1.1/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-11-16 18:39:07.000000000 -0500 +@@ -362,7 +362,7 @@ static struct ar_cookie s_ar_cookie_mem[ + (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_HOST_INTEREST_ITEM_ADDRESS(item) : 0)) + + +-static struct net_device_ops ar6000_netdev_ops = { ++static net_device_ops_no_const ar6000_netdev_ops = { + .ndo_init = NULL, + .ndo_open = ar6000_open, + .ndo_stop = ar6000_close, +diff -urNp linux-3.1.1/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h linux-3.1.1/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h +--- linux-3.1.1/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-11-16 18:39:07.000000000 -0500 +@@ -30,7 +30,7 @@ typedef bool (*ar6k_pal_recv_pkt_t)(void + typedef struct ar6k_pal_config_s + { + ar6k_pal_recv_pkt_t fpar6k_pal_recv_pkt; +-}ar6k_pal_config_t; ++} __no_const ar6k_pal_config_t; + + void register_pal_cb(ar6k_pal_config_t *palConfig_p); + #endif /* _AR6K_PAL_H_ */ +diff -urNp linux-3.1.1/drivers/staging/brcm80211/brcmfmac/dhd_linux.c linux-3.1.1/drivers/staging/brcm80211/brcmfmac/dhd_linux.c +--- linux-3.1.1/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-11-16 18:39:07.000000000 -0500 +@@ -451,14 +451,14 @@ static void brcmf_op_if(struct brcmf_if + free_netdev(ifp->net); + } + /* Allocate etherdev, including space for private structure */ +- ifp->net = alloc_etherdev(sizeof(drvr_priv)); ++ ifp->net = alloc_etherdev(sizeof(*drvr_priv)); + if (!ifp->net) { + BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); + ret = -ENOMEM; + } + if (ret == 0) { + strcpy(ifp->net->name, ifp->name); +- memcpy(netdev_priv(ifp->net), &drvr_priv, sizeof(drvr_priv)); ++ memcpy(netdev_priv(ifp->net), &drvr_priv, sizeof(*drvr_priv)); + err = brcmf_net_attach(&drvr_priv->pub, ifp->idx); + if (err != 0) { + BRCMF_ERROR(("%s: brcmf_net_attach failed, " +@@ -1279,7 +1279,7 @@ struct brcmf_pub *brcmf_attach(struct br + BRCMF_TRACE(("%s: Enter\n", __func__)); + + /* Allocate etherdev, including space for private structure */ +- net = alloc_etherdev(sizeof(drvr_priv)); ++ net = alloc_etherdev(sizeof(*drvr_priv)); + if (!net) { + BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); + goto fail; +@@ -1295,7 +1295,7 @@ struct brcmf_pub *brcmf_attach(struct br + /* + * Save the brcmf_info into the priv + */ +- memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv)); ++ memcpy(netdev_priv(net), &drvr_priv, sizeof(*drvr_priv)); + + /* Set network interface name if it was provided as module parameter */ + if (iface_name[0]) { +@@ -1352,7 +1352,7 @@ struct brcmf_pub *brcmf_attach(struct br + /* + * Save the brcmf_info into the priv + */ +- memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv)); ++ memcpy(netdev_priv(net), &drvr_priv, sizeof(*drvr_priv)); + + #if defined(CONFIG_PM_SLEEP) + atomic_set(&brcmf_mmc_suspend, false); +diff -urNp linux-3.1.1/drivers/staging/brcm80211/brcmfmac/sdio_host.h linux-3.1.1/drivers/staging/brcm80211/brcmfmac/sdio_host.h +--- linux-3.1.1/drivers/staging/brcm80211/brcmfmac/sdio_host.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/brcm80211/brcmfmac/sdio_host.h 2011-11-16 18:39:07.000000000 -0500 +@@ -263,7 +263,7 @@ struct brcmf_sdioh_driver { + u16 func, uint bustype, u32 regsva, void *param); + /* detach from device */ + void (*detach) (void *ch); +-}; ++} __no_const; + + struct sdioh_info; + +diff -urNp linux-3.1.1/drivers/staging/brcm80211/brcmsmac/phy/phy_int.h linux-3.1.1/drivers/staging/brcm80211/brcmsmac/phy/phy_int.h +--- linux-3.1.1/drivers/staging/brcm80211/brcmsmac/phy/phy_int.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/brcm80211/brcmsmac/phy/phy_int.h 2011-11-16 18:39:07.000000000 -0500 +@@ -591,7 +591,7 @@ struct phy_func_ptr { + initfn_t carrsuppr; + rxsigpwrfn_t rxsigpwr; + detachfn_t detach; +-}; ++} __no_const; + + struct brcms_phy { + struct brcms_phy_pub pubpi_ro; +diff -urNp linux-3.1.1/drivers/staging/et131x/et1310_tx.c linux-3.1.1/drivers/staging/et131x/et1310_tx.c +--- linux-3.1.1/drivers/staging/et131x/et1310_tx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/et131x/et1310_tx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -635,11 +635,11 @@ inline void et131x_free_send_packet(stru + struct net_device_stats *stats = &etdev->net_stats; + + if (tcb->flags & fMP_DEST_BROAD) +- atomic_inc(&etdev->stats.brdcstxmt); ++ atomic_inc_unchecked(&etdev->stats.brdcstxmt); + else if (tcb->flags & fMP_DEST_MULTI) +- atomic_inc(&etdev->stats.multixmt); ++ atomic_inc_unchecked(&etdev->stats.multixmt); + else +- atomic_inc(&etdev->stats.unixmt); ++ atomic_inc_unchecked(&etdev->stats.unixmt); + + if (tcb->skb) { + stats->tx_bytes += tcb->skb->len; +diff -urNp linux-3.1.1/drivers/staging/et131x/et131x_adapter.h linux-3.1.1/drivers/staging/et131x/et131x_adapter.h +--- linux-3.1.1/drivers/staging/et131x/et131x_adapter.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/et131x/et131x_adapter.h 2011-11-16 18:39:07.000000000 -0500 +@@ -106,11 +106,11 @@ struct ce_stats { + * operations + */ + u32 unircv; /* # multicast packets received */ +- atomic_t unixmt; /* # multicast packets for Tx */ ++ atomic_unchecked_t unixmt; /* # multicast packets for Tx */ + u32 multircv; /* # multicast packets received */ +- atomic_t multixmt; /* # multicast packets for Tx */ ++ atomic_unchecked_t multixmt; /* # multicast packets for Tx */ + u32 brdcstrcv; /* # broadcast packets received */ +- atomic_t brdcstxmt; /* # broadcast packets for Tx */ ++ atomic_unchecked_t brdcstxmt; /* # broadcast packets for Tx */ + u32 norcvbuf; /* # Rx packets discarded */ + u32 noxmtbuf; /* # Tx packets discarded */ + +diff -urNp linux-3.1.1/drivers/staging/hv/channel.c linux-3.1.1/drivers/staging/hv/channel.c +--- linux-3.1.1/drivers/staging/hv/channel.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/channel.c 2011-11-16 18:39:07.000000000 -0500 +@@ -447,8 +447,8 @@ int vmbus_establish_gpadl(struct vmbus_c + 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 -urNp linux-3.1.1/drivers/staging/hv/hv.c linux-3.1.1/drivers/staging/hv/hv.c +--- linux-3.1.1/drivers/staging/hv/hv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/hv.c 2011-11-16 18:39:07.000000000 -0500 +@@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, voi + u64 output_address = (output) ? virt_to_phys(output) : 0; + u32 output_address_hi = output_address >> 32; + u32 output_address_lo = output_address & 0xFFFFFFFF; +- volatile void *hypercall_page = hv_context.hypercall_page; ++ volatile 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 -urNp linux-3.1.1/drivers/staging/hv/hv_mouse.c linux-3.1.1/drivers/staging/hv/hv_mouse.c +--- linux-3.1.1/drivers/staging/hv/hv_mouse.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/hv_mouse.c 2011-11-16 18:39:07.000000000 -0500 +@@ -878,8 +878,10 @@ static void reportdesc_callback(struct h + if (hid_dev) { + DPRINT_INFO(INPUTVSC_DRV, "hid_device created"); + +- hid_dev->ll_driver->open = mousevsc_hid_open; +- hid_dev->ll_driver->close = mousevsc_hid_close; ++ pax_open_kernel(); ++ *(void **)&hid_dev->ll_driver->open = mousevsc_hid_open; ++ *(void **)&hid_dev->ll_driver->close = mousevsc_hid_close; ++ pax_close_kernel(); + + hid_dev->bus = BUS_VIRTUAL; + hid_dev->vendor = input_device_ctx->device_info.vendor; +diff -urNp linux-3.1.1/drivers/staging/hv/hyperv_vmbus.h linux-3.1.1/drivers/staging/hv/hyperv_vmbus.h +--- linux-3.1.1/drivers/staging/hv/hyperv_vmbus.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/hyperv_vmbus.h 2011-11-16 18:39:07.000000000 -0500 +@@ -559,7 +559,7 @@ 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 -urNp linux-3.1.1/drivers/staging/hv/rndis_filter.c linux-3.1.1/drivers/staging/hv/rndis_filter.c +--- linux-3.1.1/drivers/staging/hv/rndis_filter.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/rndis_filter.c 2011-11-16 18:39:07.000000000 -0500 +@@ -43,7 +43,7 @@ struct rndis_device { + + enum rndis_device_state state; + u32 link_stat; +- atomic_t new_req_id; ++ atomic_unchecked_t new_req_id; + + spinlock_t request_lock; + struct list_head req_list; +@@ -117,7 +117,7 @@ static struct rndis_request *get_rndis_r + * 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); +@@ -622,7 +622,7 @@ static void rndis_filter_halt_device(str + + /* 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 -urNp linux-3.1.1/drivers/staging/hv/vmbus_drv.c linux-3.1.1/drivers/staging/hv/vmbus_drv.c +--- linux-3.1.1/drivers/staging/hv/vmbus_drv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/hv/vmbus_drv.c 2011-11-16 18:39:07.000000000 -0500 +@@ -660,11 +660,11 @@ int vmbus_child_device_register(struct h + { + int ret = 0; + +- static atomic_t device_num = ATOMIC_INIT(0); ++ static atomic_unchecked_t device_num = ATOMIC_INIT(0); + + /* Set the device name. Otherwise, device_register() will fail. */ + dev_set_name(&child_device_obj->device, "vmbus_0_%d", +- atomic_inc_return(&device_num)); ++ atomic_inc_return_unchecked(&device_num)); + + /* The new device belongs to this bus */ + child_device_obj->device.bus = &hv_bus; /* device->dev.bus; */ +diff -urNp linux-3.1.1/drivers/staging/iio/ring_generic.h linux-3.1.1/drivers/staging/iio/ring_generic.h +--- linux-3.1.1/drivers/staging/iio/ring_generic.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/iio/ring_generic.h 2011-11-16 18:39:07.000000000 -0500 +@@ -62,7 +62,7 @@ struct iio_ring_access_funcs { + + int (*is_enabled)(struct iio_ring_buffer *ring); + int (*enable)(struct iio_ring_buffer *ring); +-}; ++} __no_const; + + struct iio_ring_setup_ops { + int (*preenable)(struct iio_dev *); +diff -urNp linux-3.1.1/drivers/staging/mei/interface.c linux-3.1.1/drivers/staging/mei/interface.c +--- linux-3.1.1/drivers/staging/mei/interface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/mei/interface.c 2011-11-17 18:39:18.000000000 -0500 +@@ -332,7 +332,7 @@ int mei_send_flow_control(struct mei_dev + mei_hdr->reserved = 0; + + mei_flow_control = (struct hbm_flow_control *) &dev->wr_msg_buf[1]; +- memset(mei_flow_control, 0, sizeof(mei_flow_control)); ++ memset(mei_flow_control, 0, sizeof(*mei_flow_control)); + mei_flow_control->host_addr = cl->host_client_id; + mei_flow_control->me_addr = cl->me_client_id; + mei_flow_control->cmd.cmd = MEI_FLOW_CONTROL_CMD; +@@ -396,7 +396,7 @@ int mei_disconnect(struct mei_device *de + + mei_cli_disconnect = + (struct hbm_client_disconnect_request *) &dev->wr_msg_buf[1]; +- memset(mei_cli_disconnect, 0, sizeof(mei_cli_disconnect)); ++ memset(mei_cli_disconnect, 0, sizeof(*mei_cli_disconnect)); + mei_cli_disconnect->host_addr = cl->host_client_id; + mei_cli_disconnect->me_addr = cl->me_client_id; + mei_cli_disconnect->cmd.cmd = CLIENT_DISCONNECT_REQ_CMD; +diff -urNp linux-3.1.1/drivers/staging/octeon/ethernet.c linux-3.1.1/drivers/staging/octeon/ethernet.c +--- linux-3.1.1/drivers/staging/octeon/ethernet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/octeon/ethernet.c 2011-11-16 18:39:07.000000000 -0500 +@@ -258,11 +258,11 @@ static struct net_device_stats *cvm_oct_ + * 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 -urNp linux-3.1.1/drivers/staging/octeon/ethernet-rx.c linux-3.1.1/drivers/staging/octeon/ethernet-rx.c +--- linux-3.1.1/drivers/staging/octeon/ethernet-rx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/octeon/ethernet-rx.c 2011-11-16 18:39:07.000000000 -0500 +@@ -420,11 +420,11 @@ static int cvm_oct_napi_poll(struct napi + /* 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); +@@ -436,9 +436,9 @@ static int cvm_oct_napi_poll(struct napi + 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 -urNp linux-3.1.1/drivers/staging/pohmelfs/inode.c linux-3.1.1/drivers/staging/pohmelfs/inode.c +--- linux-3.1.1/drivers/staging/pohmelfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/pohmelfs/inode.c 2011-11-16 18:39:07.000000000 -0500 +@@ -1861,7 +1861,7 @@ static int pohmelfs_fill_super(struct su + mutex_init(&psb->mcache_lock); + psb->mcache_root = RB_ROOT; + psb->mcache_timeout = msecs_to_jiffies(5000); +- atomic_long_set(&psb->mcache_gen, 0); ++ atomic_long_set_unchecked(&psb->mcache_gen, 0); + + psb->trans_max_pages = 100; + +@@ -1876,7 +1876,7 @@ static int pohmelfs_fill_super(struct su + INIT_LIST_HEAD(&psb->crypto_ready_list); + INIT_LIST_HEAD(&psb->crypto_active_list); + +- atomic_set(&psb->trans_gen, 1); ++ atomic_set_unchecked(&psb->trans_gen, 1); + atomic_long_set(&psb->total_inodes, 0); + + mutex_init(&psb->state_lock); +diff -urNp linux-3.1.1/drivers/staging/pohmelfs/mcache.c linux-3.1.1/drivers/staging/pohmelfs/mcache.c +--- linux-3.1.1/drivers/staging/pohmelfs/mcache.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/pohmelfs/mcache.c 2011-11-16 18:39:07.000000000 -0500 +@@ -121,7 +121,7 @@ struct pohmelfs_mcache *pohmelfs_mcache_ + m->data = data; + m->start = start; + m->size = size; +- m->gen = atomic_long_inc_return(&psb->mcache_gen); ++ m->gen = atomic_long_inc_return_unchecked(&psb->mcache_gen); + + mutex_lock(&psb->mcache_lock); + err = pohmelfs_mcache_insert(psb, m); +diff -urNp linux-3.1.1/drivers/staging/pohmelfs/netfs.h linux-3.1.1/drivers/staging/pohmelfs/netfs.h +--- linux-3.1.1/drivers/staging/pohmelfs/netfs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/pohmelfs/netfs.h 2011-11-16 18:39:07.000000000 -0500 +@@ -571,14 +571,14 @@ struct pohmelfs_config; + struct pohmelfs_sb { + struct rb_root mcache_root; + struct mutex mcache_lock; +- atomic_long_t mcache_gen; ++ atomic_long_unchecked_t mcache_gen; + unsigned long mcache_timeout; + + unsigned int idx; + + unsigned int trans_retries; + +- atomic_t trans_gen; ++ atomic_unchecked_t trans_gen; + + unsigned int crypto_attached_size; + unsigned int crypto_align_size; +diff -urNp linux-3.1.1/drivers/staging/pohmelfs/trans.c linux-3.1.1/drivers/staging/pohmelfs/trans.c +--- linux-3.1.1/drivers/staging/pohmelfs/trans.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/pohmelfs/trans.c 2011-11-16 18:39:07.000000000 -0500 +@@ -492,7 +492,7 @@ int netfs_trans_finish(struct netfs_tran + int err; + struct netfs_cmd *cmd = t->iovec.iov_base; + +- t->gen = atomic_inc_return(&psb->trans_gen); ++ t->gen = atomic_inc_return_unchecked(&psb->trans_gen); + + cmd->size = t->iovec.iov_len - sizeof(struct netfs_cmd) + + t->attached_size + t->attached_pages * sizeof(struct netfs_cmd); +diff -urNp linux-3.1.1/drivers/staging/rtl8712/rtl871x_io.h linux-3.1.1/drivers/staging/rtl8712/rtl871x_io.h +--- linux-3.1.1/drivers/staging/rtl8712/rtl871x_io.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/rtl8712/rtl871x_io.h 2011-11-16 18:39:07.000000000 -0500 +@@ -83,7 +83,7 @@ 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 -urNp linux-3.1.1/drivers/staging/sbe-2t3e3/netdev.c linux-3.1.1/drivers/staging/sbe-2t3e3/netdev.c +--- linux-3.1.1/drivers/staging/sbe-2t3e3/netdev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/sbe-2t3e3/netdev.c 2011-11-16 18:39:08.000000000 -0500 +@@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, s + 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 -urNp linux-3.1.1/drivers/staging/usbip/usbip_common.h linux-3.1.1/drivers/staging/usbip/usbip_common.h +--- linux-3.1.1/drivers/staging/usbip/usbip_common.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/usbip/usbip_common.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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; + }; + + #if 0 +diff -urNp linux-3.1.1/drivers/staging/usbip/vhci.h linux-3.1.1/drivers/staging/usbip/vhci.h +--- linux-3.1.1/drivers/staging/usbip/vhci.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/usbip/vhci.h 2011-11-16 18:39:08.000000000 -0500 +@@ -85,7 +85,7 @@ struct vhci_hcd { + unsigned resuming:1; + unsigned long re_timeout; + +- atomic_t seqnum; ++ atomic_unchecked_t seqnum; + + /* + * NOTE: +diff -urNp linux-3.1.1/drivers/staging/usbip/vhci_hcd.c linux-3.1.1/drivers/staging/usbip/vhci_hcd.c +--- linux-3.1.1/drivers/staging/usbip/vhci_hcd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/usbip/vhci_hcd.c 2011-11-16 18:39:08.000000000 -0500 +@@ -527,7 +527,7 @@ 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"); + +@@ -779,7 +779,7 @@ static int vhci_urb_dequeue(struct usb_h + 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"); + +@@ -969,7 +969,7 @@ static int vhci_start(struct usb_hcd *hc + 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 -urNp linux-3.1.1/drivers/staging/usbip/vhci_rx.c linux-3.1.1/drivers/staging/usbip/vhci_rx.c +--- linux-3.1.1/drivers/staging/usbip/vhci_rx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/usbip/vhci_rx.c 2011-11-16 18:39:08.000000000 -0500 +@@ -76,7 +76,7 @@ static void vhci_recv_ret_submit(struct + 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 -urNp linux-3.1.1/drivers/staging/vt6655/hostap.c linux-3.1.1/drivers/staging/vt6655/hostap.c +--- linux-3.1.1/drivers/staging/vt6655/hostap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/vt6655/hostap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -79,14 +79,13 @@ static int msglevel + * + */ + ++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(PSDevic + *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 -urNp linux-3.1.1/drivers/staging/vt6656/hostap.c linux-3.1.1/drivers/staging/vt6656/hostap.c +--- linux-3.1.1/drivers/staging/vt6656/hostap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/vt6656/hostap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -80,14 +80,13 @@ static int msglevel + * + */ + ++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(PSDevic + *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 -urNp linux-3.1.1/drivers/staging/wlan-ng/hfa384x_usb.c linux-3.1.1/drivers/staging/wlan-ng/hfa384x_usb.c +--- linux-3.1.1/drivers/staging/wlan-ng/hfa384x_usb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/wlan-ng/hfa384x_usb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hf + + struct usbctlx_completor { + int (*complete) (struct usbctlx_completor *); +-}; ++} __no_const; + + static int + hfa384x_usbctlx_complete_sync(hfa384x_t *hw, +diff -urNp linux-3.1.1/drivers/staging/zcache/tmem.c linux-3.1.1/drivers/staging/zcache/tmem.c +--- linux-3.1.1/drivers/staging/zcache/tmem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/zcache/tmem.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_h + * 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 -urNp linux-3.1.1/drivers/staging/zcache/tmem.h linux-3.1.1/drivers/staging/zcache/tmem.h +--- linux-3.1.1/drivers/staging/zcache/tmem.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/staging/zcache/tmem.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/target/iscsi/iscsi_target.c linux-3.1.1/drivers/target/iscsi/iscsi_target.c +--- linux-3.1.1/drivers/target/iscsi/iscsi_target.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/iscsi/iscsi_target.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1368,7 +1368,7 @@ static int iscsit_handle_data_out(struct + * outstanding_r2ts reaches zero, go ahead and send the delayed + * TASK_ABORTED status. + */ +- if (atomic_read(&se_cmd->t_transport_aborted) != 0) { ++ if (atomic_read_unchecked(&se_cmd->t_transport_aborted) != 0) { + if (hdr->flags & ISCSI_FLAG_CMD_FINAL) + if (--cmd->outstanding_r2ts < 1) { + iscsit_stop_dataout_timer(cmd); +diff -urNp linux-3.1.1/drivers/target/target_core_alua.c linux-3.1.1/drivers/target/target_core_alua.c +--- linux-3.1.1/drivers/target/target_core_alua.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_alua.c 2011-11-16 18:40:29.000000000 -0500 +@@ -723,6 +723,8 @@ static int core_alua_update_tpg_primary_ + char path[ALUA_METADATA_PATH_LEN]; + int len; + ++ pax_track_stack(); ++ + memset(path, 0, ALUA_METADATA_PATH_LEN); + + len = snprintf(md_buf, tg_pt_gp->tg_pt_gp_md_buf_len, +@@ -986,6 +988,8 @@ static int core_alua_update_tpg_secondar + char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN]; + int len; + ++ pax_track_stack(); ++ + memset(path, 0, ALUA_METADATA_PATH_LEN); + memset(wwn, 0, ALUA_SECONDARY_METADATA_WWN_LEN); + +diff -urNp linux-3.1.1/drivers/target/target_core_cdb.c linux-3.1.1/drivers/target/target_core_cdb.c +--- linux-3.1.1/drivers/target/target_core_cdb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_cdb.c 2011-11-16 18:40:29.000000000 -0500 +@@ -933,6 +933,8 @@ target_emulate_modesense(struct se_cmd * + int length = 0; + unsigned char buf[SE_MODE_PAGE_BUF]; + ++ pax_track_stack(); ++ + memset(buf, 0, SE_MODE_PAGE_BUF); + + switch (cdb[2] & 0x3f) { +diff -urNp linux-3.1.1/drivers/target/target_core_configfs.c linux-3.1.1/drivers/target/target_core_configfs.c +--- linux-3.1.1/drivers/target/target_core_configfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_configfs.c 2011-11-16 19:04:37.000000000 -0500 +@@ -1267,6 +1267,8 @@ static ssize_t target_core_dev_pr_show_a + ssize_t len = 0; + int reg_count = 0, prf_isid; + ++ pax_track_stack(); ++ + if (!su_dev->se_dev_ptr) + return -ENODEV; + +diff -urNp linux-3.1.1/drivers/target/target_core_pr.c linux-3.1.1/drivers/target/target_core_pr.c +--- linux-3.1.1/drivers/target/target_core_pr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_pr.c 2011-11-16 18:40:29.000000000 -0500 +@@ -918,6 +918,8 @@ static int __core_scsi3_check_aptpl_regi + unsigned char t_port[PR_APTPL_MAX_TPORT_LEN]; + u16 tpgt; + ++ pax_track_stack(); ++ + memset(i_port, 0, PR_APTPL_MAX_IPORT_LEN); + memset(t_port, 0, PR_APTPL_MAX_TPORT_LEN); + /* +@@ -1867,6 +1869,8 @@ static int __core_scsi3_update_aptpl_buf + ssize_t len = 0; + int reg_count = 0; + ++ pax_track_stack(); ++ + memset(buf, 0, pr_aptpl_buf_len); + /* + * Called to clear metadata once APTPL has been deactivated. +@@ -1989,6 +1993,8 @@ static int __core_scsi3_write_aptpl_to_f + char path[512]; + int ret; + ++ pax_track_stack(); ++ + memset(iov, 0, sizeof(struct iovec)); + memset(path, 0, 512); + +diff -urNp linux-3.1.1/drivers/target/target_core_tmr.c linux-3.1.1/drivers/target/target_core_tmr.c +--- linux-3.1.1/drivers/target/target_core_tmr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_tmr.c 2011-11-16 18:39:08.000000000 -0500 +@@ -255,7 +255,7 @@ 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), + atomic_read(&cmd->t_transport_active), + atomic_read(&cmd->t_transport_stop), + atomic_read(&cmd->t_transport_sent)); +@@ -291,7 +291,7 @@ static void core_tmr_drain_task_list( + pr_debug("LUN_RESET: got t_transport_active = 1 for" + " task: %p, t_fe_count: %d dev: %p\n", task, + fe_count, dev); +- atomic_set(&cmd->t_transport_aborted, 1); ++ atomic_set_unchecked(&cmd->t_transport_aborted, 1); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); +@@ -299,7 +299,7 @@ static void core_tmr_drain_task_list( + } + pr_debug("LUN_RESET: Got t_transport_active = 0 for task: %p," + " t_fe_count: %d dev: %p\n", task, fe_count, dev); +- atomic_set(&cmd->t_transport_aborted, 1); ++ atomic_set_unchecked(&cmd->t_transport_aborted, 1); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); +diff -urNp linux-3.1.1/drivers/target/target_core_transport.c linux-3.1.1/drivers/target/target_core_transport.c +--- linux-3.1.1/drivers/target/target_core_transport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/target/target_core_transport.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1445,7 +1445,7 @@ struct se_device *transport_add_device_t + + dev->queue_depth = dev_limits->queue_depth; + atomic_set(&dev->depth_left, dev->queue_depth); +- atomic_set(&dev->dev_ordered_id, 0); ++ atomic_set_unchecked(&dev->dev_ordered_id, 0); + + se_dev_set_default_attribs(dev, dev_limits); + +@@ -1633,7 +1633,7 @@ static int transport_check_alloc_task_at + * 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, +@@ -1960,7 +1960,7 @@ static void transport_generic_request_fa + " t_transport_active: %d t_transport_stop: %d" + " t_transport_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), + atomic_read(&cmd->t_transport_active), + atomic_read(&cmd->t_transport_stop), +@@ -2460,9 +2460,9 @@ check_depth: + spin_lock_irqsave(&cmd->t_state_lock, flags); + atomic_set(&task->task_active, 1); + atomic_set(&task->task_sent, 1); +- 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) + atomic_set(&cmd->transport_sent, 1); + +@@ -4665,7 +4665,7 @@ static void transport_generic_wait_for_t + atomic_set(&cmd->transport_lun_stop, 0); + } + if (!atomic_read(&cmd->t_transport_active) || +- atomic_read(&cmd->t_transport_aborted)) ++ atomic_read_unchecked(&cmd->t_transport_aborted)) + goto remove; + + atomic_set(&cmd->t_transport_stop, 1); +@@ -4900,7 +4900,7 @@ int transport_check_aborted_status(struc + { + int ret = 0; + +- if (atomic_read(&cmd->t_transport_aborted) != 0) { ++ if (atomic_read_unchecked(&cmd->t_transport_aborted) != 0) { + if (!send_status || + (cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS)) + return 1; +@@ -4937,7 +4937,7 @@ void transport_send_task_abort(struct se + */ + if (cmd->data_direction == DMA_TO_DEVICE) { + if (cmd->se_tfo->write_pending_status(cmd) != 0) { +- atomic_inc(&cmd->t_transport_aborted); ++ atomic_inc_unchecked(&cmd->t_transport_aborted); + smp_mb__after_atomic_inc(); + cmd->scsi_status = SAM_STAT_TASK_ABORTED; + transport_new_cmd_failure(cmd); +@@ -5051,7 +5051,7 @@ static void transport_processing_shutdow + cmd->se_tfo->get_task_tag(cmd), + 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_transport_active), + atomic_read(&cmd->t_transport_stop), + atomic_read(&cmd->t_transport_sent)); +diff -urNp linux-3.1.1/drivers/telephony/ixj.c linux-3.1.1/drivers/telephony/ixj.c +--- linux-3.1.1/drivers/telephony/ixj.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/telephony/ixj.c 2011-11-16 18:40:29.000000000 -0500 +@@ -4976,6 +4976,8 @@ static int ixj_daa_cid_read(IXJ *j) + bool mContinue; + char *pIn, *pOut; + ++ pax_track_stack(); ++ + if (!SCI_Prepare(j)) + return 0; + +diff -urNp linux-3.1.1/drivers/tty/hvc/hvcs.c linux-3.1.1/drivers/tty/hvc/hvcs.c +--- linux-3.1.1/drivers/tty/hvc/hvcs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/hvc/hvcs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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(st + + 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"); +@@ -1145,7 +1146,7 @@ static int hvcs_open(struct tty_struct * + 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; + +@@ -1179,7 +1180,7 @@ 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); + +@@ -1223,7 +1224,7 @@ static void hvcs_close(struct tty_struct + 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); + +@@ -1249,10 +1250,10 @@ static void hvcs_close(struct tty_struct + 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); +@@ -1268,7 +1269,7 @@ static void hvcs_hangup(struct tty_struc + + 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 +@@ -1283,7 +1284,7 @@ static void hvcs_hangup(struct tty_struc + 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. */ +@@ -1354,7 +1355,7 @@ static int hvcs_write(struct tty_struct + * 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; + } +@@ -1428,7 +1429,7 @@ static int hvcs_write_room(struct tty_st + { + 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 -urNp linux-3.1.1/drivers/tty/ipwireless/tty.c linux-3.1.1/drivers/tty/ipwireless/tty.c +--- linux-3.1.1/drivers/tty/ipwireless/tty.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/ipwireless/tty.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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; +@@ -127,10 +128,10 @@ static int ipw_open(struct tty_struct *l + 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; +@@ -146,9 +147,7 @@ static int ipw_open(struct tty_struct *l + + 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) { +@@ -169,7 +168,7 @@ static void ipw_hangup(struct tty_struct + 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; + } +@@ -198,7 +197,7 @@ void ipwireless_tty_received(struct ipw_ + return; + } + +- if (!tty->open_count) { ++ if (!local_read(&tty->open_count)) { + mutex_unlock(&tty->ipw_tty_mutex); + return; + } +@@ -240,7 +239,7 @@ static int ipw_write(struct tty_struct * + 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; + } +@@ -280,7 +279,7 @@ static int ipw_write_room(struct tty_str + 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; +@@ -322,7 +321,7 @@ static int ipw_chars_in_buffer(struct tt + if (!tty) + return 0; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return 0; + + return tty->tx_bytes_queued; +@@ -403,7 +402,7 @@ static int ipw_tiocmget(struct tty_struc + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + return get_control_lines(tty); +@@ -419,7 +418,7 @@ ipw_tiocmset(struct tty_struct *linux_tt + if (!tty) + return -ENODEV; + +- if (!tty->open_count) ++ if (!local_read(&tty->open_count)) + return -EINVAL; + + return set_control_lines(tty, set, clear); +@@ -433,7 +432,7 @@ static int ipw_ioctl(struct tty_struct * + 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 .. */ +@@ -582,7 +581,7 @@ void ipwireless_tty_free(struct ipw_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 -urNp linux-3.1.1/drivers/tty/n_gsm.c linux-3.1.1/drivers/tty/n_gsm.c +--- linux-3.1.1/drivers/tty/n_gsm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/n_gsm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1625,7 +1625,7 @@ static struct gsm_dlci *gsm_dlci_alloc(s + 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 -urNp linux-3.1.1/drivers/tty/n_tty.c linux-3.1.1/drivers/tty/n_tty.c +--- linux-3.1.1/drivers/tty/n_tty.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/n_tty.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2123,6 +2123,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ + { + *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 -urNp linux-3.1.1/drivers/tty/pty.c linux-3.1.1/drivers/tty/pty.c +--- linux-3.1.1/drivers/tty/pty.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/pty.c 2011-11-16 18:39:08.000000000 -0500 +@@ -773,8 +773,10 @@ static void __init unix98_pty_init(void) + register_sysctl_table(pty_root_table); + + /* 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 -urNp linux-3.1.1/drivers/tty/rocket.c linux-3.1.1/drivers/tty/rocket.c +--- linux-3.1.1/drivers/tty/rocket.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/rocket.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1277,6 +1277,8 @@ static int get_ports(struct r_port *info + struct rocket_ports tmp; + int board; + ++ pax_track_stack(); ++ + if (!retports) + return -EFAULT; + memset(&tmp, 0, sizeof (tmp)); +diff -urNp linux-3.1.1/drivers/tty/serial/kgdboc.c linux-3.1.1/drivers/tty/serial/kgdboc.c +--- linux-3.1.1/drivers/tty/serial/kgdboc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/serial/kgdboc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -23,8 +23,9 @@ + #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]; +@@ -147,6 +148,8 @@ 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) +@@ -156,13 +159,13 @@ 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; +@@ -183,7 +186,7 @@ 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; +@@ -193,12 +196,16 @@ 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: +@@ -212,7 +219,7 @@ noconfig: + static int __init init_kgdboc(void) + { + /* Already configured? */ +- if (configured == 1) ++ if (configured >= 1) + return 0; + + return configure_kgdboc(); +@@ -261,7 +268,7 @@ static int param_set_kgdboc_var(const ch + if (config[len - 1] == '\n') + config[len - 1] = '\0'; + +- if (configured == 1) ++ if (configured >= 1) + cleanup_kgdboc(); + + /* Go and configure with the new params. */ +@@ -301,6 +308,15 @@ 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 -urNp linux-3.1.1/drivers/tty/serial/mfd.c linux-3.1.1/drivers/tty/serial/mfd.c +--- linux-3.1.1/drivers/tty/serial/mfd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/serial/mfd.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1423,7 +1423,7 @@ static void serial_hsu_remove(struct pci + } + + /* First 3 are UART ports, and the 4th is the DMA */ +-static const struct pci_device_id pci_ids[] __devinitdata = { ++static const struct pci_device_id pci_ids[] __devinitconst = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081B) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081C) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081D) }, +diff -urNp linux-3.1.1/drivers/tty/serial/mrst_max3110.c linux-3.1.1/drivers/tty/serial/mrst_max3110.c +--- linux-3.1.1/drivers/tty/serial/mrst_max3110.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/serial/mrst_max3110.c 2011-11-16 18:40:29.000000000 -0500 +@@ -393,6 +393,8 @@ static void max3110_con_receive(struct u + int loop = 1, num, total = 0; + u8 recv_buf[512], *pbuf; + ++ pax_track_stack(); ++ + pbuf = recv_buf; + do { + num = max3110_read_multi(max, pbuf); +diff -urNp linux-3.1.1/drivers/tty/tty_io.c linux-3.1.1/drivers/tty/tty_io.c +--- linux-3.1.1/drivers/tty/tty_io.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/tty_io.c 2011-11-16 18:39:08.000000000 -0500 +@@ -3238,7 +3238,7 @@ 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 -urNp linux-3.1.1/drivers/tty/tty_ldisc.c linux-3.1.1/drivers/tty/tty_ldisc.c +--- linux-3.1.1/drivers/tty/tty_ldisc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/tty_ldisc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -74,7 +74,7 @@ static void put_ldisc(struct tty_ldisc * + 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); + +@@ -109,7 +109,7 @@ int tty_register_ldisc(int disc, struct + 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; +@@ -137,7 +137,7 @@ 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; +@@ -158,7 +158,7 @@ static struct tty_ldisc_ops *get_ldops(i + if (ldops) { + ret = ERR_PTR(-EAGAIN); + if (try_module_get(ldops->owner)) { +- ldops->refcount++; ++ atomic_inc(&ldops->refcount); + ret = ldops; + } + } +@@ -171,7 +171,7 @@ static void put_ldops(struct tty_ldisc_o + 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 -urNp linux-3.1.1/drivers/tty/vt/keyboard.c linux-3.1.1/drivers/tty/vt/keyboard.c +--- linux-3.1.1/drivers/tty/vt/keyboard.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/vt/keyboard.c 2011-11-16 18:40:29.000000000 -0500 +@@ -656,6 +656,16 @@ static void k_spec(struct vc_data *vc, u + 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); + } + +diff -urNp linux-3.1.1/drivers/tty/vt/vt.c linux-3.1.1/drivers/tty/vt/vt.c +--- linux-3.1.1/drivers/tty/vt/vt.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/vt/vt.c 2011-11-16 18:39:08.000000000 -0500 +@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(unregister_vt_notifier + + static void notify_write(struct vc_data *vc, unsigned int unicode) + { +- struct vt_notifier_param param = { .vc = vc, unicode = unicode }; ++ struct vt_notifier_param param = { .vc = vc, .c = unicode }; + atomic_notifier_call_chain(&vt_notifier_list, VT_WRITE, &param); + } + +diff -urNp linux-3.1.1/drivers/tty/vt/vt_ioctl.c linux-3.1.1/drivers/tty/vt/vt_ioctl.c +--- linux-3.1.1/drivers/tty/vt/vt_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/tty/vt/vt_ioctl.c 2011-11-16 18:40:29.000000000 -0500 +@@ -207,9 +207,6 @@ do_kdsk_ioctl(int cmd, struct kbentry __ + if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) + return -EFAULT; + +- if (!capable(CAP_SYS_TTY_CONFIG)) +- perm = 0; +- + switch (cmd) { + case KDGKBENT: + key_map = key_maps[s]; +@@ -221,6 +218,9 @@ do_kdsk_ioctl(int cmd, struct kbentry __ + val = (i ? K_HOLE : K_NOSUCHMAP); + 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) { +@@ -322,9 +322,6 @@ do_kdgkb_ioctl(int cmd, struct kbsentry + int i, j, k; + int ret; + +- if (!capable(CAP_SYS_TTY_CONFIG)) +- perm = 0; +- + kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); + if (!kbs) { + ret = -ENOMEM; +@@ -358,6 +355,9 @@ do_kdgkb_ioctl(int cmd, struct kbsentry + kfree(kbs); + return ((p && *p) ? -EOVERFLOW : 0); + case KDSKBSENT: ++ if (!capable(CAP_SYS_TTY_CONFIG)) ++ perm = 0; ++ + if (!perm) { + ret = -EPERM; + goto reterr; +diff -urNp linux-3.1.1/drivers/uio/uio.c linux-3.1.1/drivers/uio/uio.c +--- linux-3.1.1/drivers/uio/uio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/uio/uio.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 + 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 *i + { + 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, + } + + 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 + 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 *fil + 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_ + 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) +@@ -823,7 +824,7 @@ int __uio_register_device(struct module + 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 -urNp linux-3.1.1/drivers/usb/atm/cxacru.c linux-3.1.1/drivers/usb/atm/cxacru.c +--- linux-3.1.1/drivers/usb/atm/cxacru.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/atm/cxacru.c 2011-11-16 18:39:08.000000000 -0500 +@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_c + 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 -urNp linux-3.1.1/drivers/usb/atm/usbatm.c linux-3.1.1/drivers/usb/atm/usbatm.c +--- linux-3.1.1/drivers/usb/atm/usbatm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/atm/usbatm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(stru + 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(stru + 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(stru + 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(stru + 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(stru + + 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 l + 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 a + 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 -urNp linux-3.1.1/drivers/usb/core/devices.c linux-3.1.1/drivers/usb/core/devices.c +--- linux-3.1.1/drivers/usb/core/devices.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/core/devices.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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(stru + + 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 -urNp linux-3.1.1/drivers/usb/core/message.c linux-3.1.1/drivers/usb/core/message.c +--- linux-3.1.1/drivers/usb/core/message.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/core/message.c 2011-11-16 18:39:08.000000000 -0500 +@@ -869,8 +869,8 @@ char *usb_cache_string(struct usb_device + buf = kmalloc(MAX_USB_STRING_SIZE, GFP_NOIO); + if (buf) { + len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE); +- if (len > 0) { +- smallbuf = kmalloc(++len, GFP_NOIO); ++ if (len++ > 0) { ++ smallbuf = kmalloc(len, GFP_NOIO); + if (!smallbuf) + return buf; + memcpy(smallbuf, buf, len); +diff -urNp linux-3.1.1/drivers/usb/early/ehci-dbgp.c linux-3.1.1/drivers/usb/early/ehci-dbgp.c +--- linux-3.1.1/drivers/usb/early/ehci-dbgp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/early/ehci-dbgp.c 2011-11-16 18:39:08.000000000 -0500 +@@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, + + #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( + 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 -urNp linux-3.1.1/drivers/usb/host/xhci-mem.c linux-3.1.1/drivers/usb/host/xhci-mem.c +--- linux-3.1.1/drivers/usb/host/xhci-mem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/host/xhci-mem.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1690,6 +1690,8 @@ static int xhci_check_trb_in_td_math(str + unsigned int num_tests; + int i, ret; + ++ pax_track_stack(); ++ + num_tests = ARRAY_SIZE(simple_test_vector); + for (i = 0; i < num_tests; i++) { + ret = xhci_test_trb_in_td(xhci, +diff -urNp linux-3.1.1/drivers/usb/wusbcore/wa-hc.h linux-3.1.1/drivers/usb/wusbcore/wa-hc.h +--- linux-3.1.1/drivers/usb/wusbcore/wa-hc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/wusbcore/wa-hc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 * + 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 -urNp linux-3.1.1/drivers/usb/wusbcore/wa-xfer.c linux-3.1.1/drivers/usb/wusbcore/wa-xfer.c +--- linux-3.1.1/drivers/usb/wusbcore/wa-xfer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/usb/wusbcore/wa-xfer.c 2011-11-16 18:39:08.000000000 -0500 +@@ -295,7 +295,7 @@ 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 -urNp linux-3.1.1/drivers/vhost/vhost.c linux-3.1.1/drivers/vhost/vhost.c +--- linux-3.1.1/drivers/vhost/vhost.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/vhost/vhost.c 2011-11-16 18:39:08.000000000 -0500 +@@ -629,7 +629,7 @@ static long vhost_set_memory(struct vhos + 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 -urNp linux-3.1.1/drivers/video/aty/aty128fb.c linux-3.1.1/drivers/video/aty/aty128fb.c +--- linux-3.1.1/drivers/video/aty/aty128fb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/aty/aty128fb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/video/fbcmap.c linux-3.1.1/drivers/video/fbcmap.c +--- linux-3.1.1/drivers/video/fbcmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/fbcmap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user + 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 -urNp linux-3.1.1/drivers/video/fbmem.c linux-3.1.1/drivers/video/fbmem.c +--- linux-3.1.1/drivers/video/fbmem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/fbmem.c 2011-11-16 18:40:29.000000000 -0500 +@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_in + 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_in + 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; + } +@@ -939,6 +939,8 @@ fb_set_var(struct fb_info *info, struct + int flags = info->flags; + int ret = 0; + ++ pax_track_stack(); ++ + if (var->activate & FB_ACTIVATE_INV_MODE) { + struct fb_videomode mode1, mode2; + +@@ -1064,6 +1066,8 @@ static long do_fb_ioctl(struct fb_info * + void __user *argp = (void __user *)arg; + long ret = 0; + ++ pax_track_stack(); ++ + switch (cmd) { + case FBIOGET_VSCREENINFO: + if (!lock_fb_info(info)) +@@ -1143,7 +1147,7 @@ static long do_fb_ioctl(struct fb_info * + 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 -urNp linux-3.1.1/drivers/video/geode/gx1fb_core.c linux-3.1.1/drivers/video/geode/gx1fb_core.c +--- linux-3.1.1/drivers/video/geode/gx1fb_core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/geode/gx1fb_core.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/video/gxt4500.c linux-3.1.1/drivers/video/gxt4500.c +--- linux-3.1.1/drivers/video/gxt4500.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/gxt4500.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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, stru + 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 -urNp linux-3.1.1/drivers/video/i810/i810_accel.c linux-3.1.1/drivers/video/i810/i810_accel.c +--- linux-3.1.1/drivers/video/i810/i810_accel.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/i810/i810_accel.c 2011-11-16 18:39:08.000000000 -0500 +@@ -73,6 +73,7 @@ static inline int wait_for_space(struct + } + } + 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 -urNp linux-3.1.1/drivers/video/i810/i810_main.c linux-3.1.1/drivers/video/i810/i810_main.c +--- linux-3.1.1/drivers/video/i810/i810_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/i810/i810_main.c 2011-11-16 18:39:08.000000000 -0500 +@@ -97,7 +97,7 @@ static int i810fb_blank (int blank_ + 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 -urNp linux-3.1.1/drivers/video/jz4740_fb.c linux-3.1.1/drivers/video/jz4740_fb.c +--- linux-3.1.1/drivers/video/jz4740_fb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/jz4740_fb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/video/logo/logo_linux_clut224.ppm linux-3.1.1/drivers/video/logo/logo_linux_clut224.ppm +--- linux-3.1.1/drivers/video/logo/logo_linux_clut224.ppm 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/logo/logo_linux_clut224.ppm 2011-11-16 18:40:29.000000000 -0500 +@@ -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 +- 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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 -urNp linux-3.1.1/drivers/video/udlfb.c linux-3.1.1/drivers/video/udlfb.c +--- linux-3.1.1/drivers/video/udlfb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/udlfb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -585,11 +585,11 @@ int dlfb_handle_damage(struct dlfb_data + 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); + +@@ -710,11 +710,11 @@ static void dlfb_dpy_deferred_io(struct + 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); + } +@@ -1306,7 +1306,7 @@ static ssize_t metrics_bytes_rendered_sh + 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, +@@ -1314,7 +1314,7 @@ static ssize_t metrics_bytes_identical_s + 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, +@@ -1322,7 +1322,7 @@ static ssize_t metrics_bytes_sent_show(s + 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, +@@ -1330,7 +1330,7 @@ static ssize_t metrics_cpu_kcycles_used_ + 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( +@@ -1387,10 +1387,10 @@ static ssize_t metrics_reset_store(struc + 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 -urNp linux-3.1.1/drivers/video/uvesafb.c linux-3.1.1/drivers/video/uvesafb.c +--- linux-3.1.1/drivers/video/uvesafb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/uvesafb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 +@@ -121,7 +122,7 @@ static int uvesafb_helper_start(void) + NULL, + }; + +- return call_usermodehelper(v86d_path, argv, envp, 1); ++ return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC); + } + + /* +@@ -569,10 +570,32 @@ static int __devinit uvesafb_vbe_getpmi( + 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); +@@ -1821,6 +1844,11 @@ 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; + } +@@ -1847,6 +1875,12 @@ static int uvesafb_remove(struct platfor + 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 -urNp linux-3.1.1/drivers/video/vesafb.c linux-3.1.1/drivers/video/vesafb.c +--- linux-3.1.1/drivers/video/vesafb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/vesafb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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; /* + 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 pl + 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 pl + 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 pl + 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 pl + + 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 pl + 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 -urNp linux-3.1.1/drivers/video/via/via_clock.h linux-3.1.1/drivers/video/via/via_clock.h +--- linux-3.1.1/drivers/video/via/via_clock.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/video/via/via_clock.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/drivers/virtio/virtio_balloon.c linux-3.1.1/drivers/virtio/virtio_balloon.c +--- linux-3.1.1/drivers/virtio/virtio_balloon.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/virtio/virtio_balloon.c 2011-11-16 18:40:29.000000000 -0500 +@@ -174,6 +174,8 @@ static void update_balloon_stats(struct + struct sysinfo i; + int idx = 0; + ++ pax_track_stack(); ++ + all_vm_events(events); + si_meminfo(&i); + +diff -urNp linux-3.1.1/drivers/xen/xen-pciback/conf_space.h linux-3.1.1/drivers/xen/xen-pciback/conf_space.h +--- linux-3.1.1/drivers/xen/xen-pciback/conf_space.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/drivers/xen/xen-pciback/conf_space.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/9p/vfs_inode.c linux-3.1.1/fs/9p/vfs_inode.c +--- linux-3.1.1/fs/9p/vfs_inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/9p/vfs_inode.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1288,7 +1288,7 @@ static void *v9fs_vfs_follow_link(struct + 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_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name, + IS_ERR(s) ? "<error>" : s); +diff -urNp linux-3.1.1/fs/aio.c linux-3.1.1/fs/aio.c +--- linux-3.1.1/fs/aio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/aio.c 2011-11-16 18:40:29.000000000 -0500 +@@ -119,7 +119,7 @@ static int aio_setup_ring(struct kioctx + 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); +@@ -1088,6 +1088,8 @@ static int read_events(struct kioctx *ct + struct aio_timeout to; + int retry = 0; + ++ pax_track_stack(); ++ + /* needed to zero any padding within an entry (there shouldn't be + * any, but C is fun! + */ +@@ -1381,22 +1383,27 @@ static ssize_t aio_fsync(struct kiocb *i + 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); + 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); + 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 -urNp linux-3.1.1/fs/attr.c linux-3.1.1/fs/attr.c +--- linux-3.1.1/fs/attr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/attr.c 2011-11-16 18:40:29.000000000 -0500 +@@ -98,6 +98,7 @@ int inode_newsize_ok(const struct inode + 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 -urNp linux-3.1.1/fs/autofs4/waitq.c linux-3.1.1/fs/autofs4/waitq.c +--- linux-3.1.1/fs/autofs4/waitq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/autofs4/waitq.c 2011-11-16 18:39:08.000000000 -0500 +@@ -60,7 +60,7 @@ static int autofs4_write(struct file *fi + { + 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; + + /** WARNING: this is not safe for writing more than PIPE_BUF bytes! **/ +diff -urNp linux-3.1.1/fs/befs/linuxvfs.c linux-3.1.1/fs/befs/linuxvfs.c +--- linux-3.1.1/fs/befs/linuxvfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/befs/linuxvfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -503,7 +503,7 @@ static void befs_put_link(struct dentry + { + 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 -urNp linux-3.1.1/fs/binfmt_aout.c linux-3.1.1/fs/binfmt_aout.c +--- linux-3.1.1/fs/binfmt_aout.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/binfmt_aout.c 2011-11-16 18:40:29.000000000 -0500 +@@ -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> +@@ -86,6 +87,8 @@ static int aout_core_dump(struct coredum + #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; +@@ -97,10 +100,12 @@ static int aout_core_dump(struct coredum + + /* 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; + +@@ -234,6 +239,8 @@ static int load_aout_binary(struct linux + 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; + +@@ -262,6 +269,27 @@ static int load_aout_binary(struct linux + install_exec_creds(bprm); + current->flags &= ~PF_FORKNOEXEC; + ++#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; +@@ -334,7 +362,7 @@ static int load_aout_binary(struct linux + + down_write(&current->mm->mmap_sem); + error = do_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); + up_write(&current->mm->mmap_sem); +diff -urNp linux-3.1.1/fs/binfmt_elf.c linux-3.1.1/fs/binfmt_elf.c +--- linux-3.1.1/fs/binfmt_elf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/binfmt_elf.c 2011-11-16 18:40:29.000000000 -0500 +@@ -51,6 +51,10 @@ static int elf_core_dump(struct coredump + #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 +@@ -70,6 +74,11 @@ 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, + }; + +@@ -77,6 +86,8 @@ 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) { +@@ -87,7 +98,7 @@ static int set_brk(unsigned long start, + if (BAD_ADDR(addr)) + return addr; + } +- current->mm->start_brk = current->mm->brk = end; ++ current->mm->start_brk = current->mm->brk = e; + return 0; + } + +@@ -148,12 +159,15 @@ create_elf_tables(struct linux_binprm *b + 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]; ++ ++ pax_track_stack(); + + /* + * In some cases (e.g. Hyper-Threading), we want to avoid L1 +@@ -195,8 +209,12 @@ create_elf_tables(struct linux_binprm *b + * 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; + +@@ -308,9 +326,11 @@ create_elf_tables(struct linux_binprm *b + 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; + } +@@ -381,10 +401,10 @@ static unsigned long load_elf_interp(str + { + 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; + +@@ -430,6 +450,11 @@ static unsigned long load_elf_interp(str + 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) { +@@ -473,8 +498,8 @@ static unsigned long load_elf_interp(str + 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; + } +@@ -528,6 +553,193 @@ out: + return error; + } + ++#if (defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)) && defined(CONFIG_PAX_SOFTMODE) ++static unsigned long pax_parse_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 ++ ++#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 ++ ++ return pax_flags; ++} ++#endif ++ ++#ifdef CONFIG_PAX_PT_PAX_FLAGS ++static unsigned long pax_parse_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 ++ ++#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 ++ ++ return pax_flags; ++} ++#endif ++ ++#ifdef CONFIG_PAX_EI_PAX ++static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#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 ++ ++ return pax_flags; ++} ++#endif ++ ++#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) ++static long pax_parse_elf_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata) ++{ ++ unsigned long pax_flags = 0UL; ++ ++#ifdef CONFIG_PAX_PT_PAX_FLAGS ++ unsigned long i; ++ int found_flags = 0; ++#endif ++ ++#ifdef CONFIG_PAX_EI_PAX ++ pax_flags = pax_parse_ei_pax(elf_ex); ++#endif ++ ++#ifdef CONFIG_PAX_PT_PAX_FLAGS ++ 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 -EINVAL; ++ ++#ifdef CONFIG_PAX_SOFTMODE ++ if (pax_softmode) ++ pax_flags = pax_parse_softmode(&elf_phdata[i]); ++ else ++#endif ++ ++ pax_flags = pax_parse_hardmode(&elf_phdata[i]); ++ found_flags = 1; ++ break; ++ } ++#endif ++ ++#if !defined(CONFIG_PAX_EI_PAX) && defined(CONFIG_PAX_PT_PAX_FLAGS) ++ if (found_flags == 0) { ++ struct elf_phdr phdr; ++ memset(&phdr, 0, sizeof(phdr)); ++ phdr.p_flags = PF_NOEMUTRAMP; ++#ifdef CONFIG_PAX_SOFTMODE ++ if (pax_softmode) ++ pax_flags = pax_parse_softmode(&phdr); ++ else ++#endif ++ pax_flags = pax_parse_hardmode(&phdr); ++ } ++#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. +@@ -544,6 +756,11 @@ static unsigned long randomize_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; +@@ -562,7 +779,7 @@ static int load_elf_binary(struct linux_ + 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; +@@ -572,11 +789,11 @@ static int load_elf_binary(struct linux_ + 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) { +@@ -713,11 +930,81 @@ static int load_elf_binary(struct linux_ + + /* OK, This is the point of no return */ + current->flags &= ~PF_FORKNOEXEC; +- 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) ++ if (0 > pax_parse_elf_flags(&loc->elf_ex, elf_phdata)) { ++ 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; + +@@ -808,6 +1095,20 @@ static int load_elf_binary(struct linux_ + #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, +@@ -840,9 +1141,9 @@ static int load_elf_binary(struct linux_ + * 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; +@@ -870,6 +1171,11 @@ static int load_elf_binary(struct linux_ + start_data += load_bias; + end_data += load_bias; + ++#ifdef CONFIG_PAX_RANDMMAP ++ if (current->mm->pax_flags & MF_PAX_RANDMMAP) ++ elf_brk += PAGE_SIZE + ((pax_get_random_long() & ~PAGE_MASK) << 4); ++#endif ++ + /* Calling set_brk effectively mmaps the pages that we need + * for the bss and break sections. We must do this before + * mapping in the interpreter, to make sure it doesn't wind +@@ -881,9 +1187,11 @@ static int load_elf_binary(struct linux_ + 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 ++ */ + } + + if (elf_interpreter) { +@@ -1098,7 +1406,7 @@ out: + * 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)) + +@@ -1132,7 +1440,7 @@ static unsigned long vma_dump_size(struc + if (vma->vm_file == NULL) + return 0; + +- if (FILTER(MAPPED_PRIVATE)) ++ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE)) + goto whole; + + /* +@@ -1354,9 +1662,9 @@ static void fill_auxv_note(struct memelf + { + 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); + } + +@@ -1862,14 +2170,14 @@ static void fill_extnum_info(struct elfh + } + + 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; + } + +@@ -1963,7 +2271,7 @@ static int elf_core_dump(struct coredump + + 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; + +@@ -1977,10 +2285,12 @@ static int elf_core_dump(struct coredump + 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; +@@ -1994,7 +2304,7 @@ static int elf_core_dump(struct coredump + 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; +@@ -2005,6 +2315,7 @@ static int elf_core_dump(struct coredump + 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; +@@ -2029,7 +2340,7 @@ static int elf_core_dump(struct coredump + 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; +@@ -2038,6 +2349,7 @@ static int elf_core_dump(struct coredump + 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); +@@ -2055,6 +2367,7 @@ static int elf_core_dump(struct coredump + + 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))) +@@ -2075,6 +2388,97 @@ 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) + { + return register_binfmt(&elf_format); +diff -urNp linux-3.1.1/fs/binfmt_flat.c linux-3.1.1/fs/binfmt_flat.c +--- linux-3.1.1/fs/binfmt_flat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/binfmt_flat.c 2011-11-16 18:39:08.000000000 -0500 +@@ -567,7 +567,9 @@ static int load_flat_file(struct linux_b + 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; + } +@@ -591,8 +593,10 @@ static int load_flat_file(struct linux_b + } + 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; + } +@@ -661,8 +665,10 @@ static int load_flat_file(struct linux_b + } + 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 -urNp linux-3.1.1/fs/bio.c linux-3.1.1/fs/bio.c +--- linux-3.1.1/fs/bio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/bio.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1233,7 +1233,7 @@ static void bio_copy_kern_endio(struct b + 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 -urNp linux-3.1.1/fs/block_dev.c linux-3.1.1/fs/block_dev.c +--- linux-3.1.1/fs/block_dev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/block_dev.c 2011-11-16 18:39:08.000000000 -0500 +@@ -681,7 +681,7 @@ static bool bd_may_claim(struct block_de + 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 -urNp linux-3.1.1/fs/btrfs/ctree.c linux-3.1.1/fs/btrfs/ctree.c +--- linux-3.1.1/fs/btrfs/ctree.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/btrfs/ctree.c 2011-11-16 18:39:08.000000000 -0500 +@@ -488,9 +488,12 @@ static noinline int __btrfs_cow_block(st + 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 -urNp linux-3.1.1/fs/btrfs/inode.c linux-3.1.1/fs/btrfs/inode.c +--- linux-3.1.1/fs/btrfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/btrfs/inode.c 2011-11-17 18:12:11.000000000 -0500 +@@ -6922,7 +6922,7 @@ 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; +@@ -6934,6 +6934,14 @@ static int btrfs_getattr(struct vfsmount + 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 -urNp linux-3.1.1/fs/btrfs/ioctl.c linux-3.1.1/fs/btrfs/ioctl.c +--- linux-3.1.1/fs/btrfs/ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/btrfs/ioctl.c 2011-11-16 18:40:29.000000000 -0500 +@@ -2704,9 +2704,12 @@ long btrfs_ioctl_space_info(struct btrfs + 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, +@@ -2728,15 +2731,12 @@ long btrfs_ioctl_space_info(struct btrfs + 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 -urNp linux-3.1.1/fs/btrfs/relocation.c linux-3.1.1/fs/btrfs/relocation.c +--- linux-3.1.1/fs/btrfs/relocation.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/btrfs/relocation.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1242,7 +1242,7 @@ static int __update_reloc_root(struct bt + } + 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 -urNp linux-3.1.1/fs/cachefiles/bind.c linux-3.1.1/fs/cachefiles/bind.c +--- linux-3.1.1/fs/cachefiles/bind.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/bind.c 2011-11-16 18:39:08.000000000 -0500 +@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachef + 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 -urNp linux-3.1.1/fs/cachefiles/daemon.c linux-3.1.1/fs/cachefiles/daemon.c +--- linux-3.1.1/fs/cachefiles/daemon.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/daemon.c 2011-11-16 18:39:08.000000000 -0500 +@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(st + 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(s + 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(struc + 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(struc + 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 -urNp linux-3.1.1/fs/cachefiles/internal.h linux-3.1.1/fs/cachefiles/internal.h +--- linux-3.1.1/fs/cachefiles/internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/internal.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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(struc + * 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 -urNp linux-3.1.1/fs/cachefiles/namei.c linux-3.1.1/fs/cachefiles/namei.c +--- linux-3.1.1/fs/cachefiles/namei.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/namei.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/cachefiles/proc.c linux-3.1.1/fs/cachefiles/proc.c +--- linux-3.1.1/fs/cachefiles/proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/proc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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(str + 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 -urNp linux-3.1.1/fs/cachefiles/rdwr.c linux-3.1.1/fs/cachefiles/rdwr.c +--- linux-3.1.1/fs/cachefiles/rdwr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cachefiles/rdwr.c 2011-11-16 18:39:08.000000000 -0500 +@@ -945,7 +945,7 @@ int cachefiles_write_page(struct fscache + 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 -urNp linux-3.1.1/fs/ceph/dir.c linux-3.1.1/fs/ceph/dir.c +--- linux-3.1.1/fs/ceph/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ceph/dir.c 2011-11-16 18:39:08.000000000 -0500 +@@ -244,7 +244,7 @@ static int ceph_readdir(struct file *fil + 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; +diff -urNp linux-3.1.1/fs/cifs/cifs_debug.c linux-3.1.1/fs/cifs/cifs_debug.c +--- linux-3.1.1/fs/cifs/cifs_debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cifs/cifs_debug.c 2011-11-16 18:39:08.000000000 -0500 +@@ -265,8 +265,8 @@ static ssize_t cifs_stats_proc_write(str + + 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(str + 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 s + 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 s + 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 -urNp linux-3.1.1/fs/cifs/cifsfs.c linux-3.1.1/fs/cifs/cifsfs.c +--- linux-3.1.1/fs/cifs/cifsfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cifs/cifsfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -981,7 +981,7 @@ 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; + +@@ -1008,7 +1008,7 @@ 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); +@@ -1093,8 +1093,8 @@ 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 -urNp linux-3.1.1/fs/cifs/cifsglob.h linux-3.1.1/fs/cifs/cifsglob.h +--- linux-3.1.1/fs/cifs/cifsglob.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cifs/cifsglob.h 2011-11-16 18:39:08.000000000 -0500 +@@ -381,28 +381,28 @@ 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; +@@ -613,7 +613,7 @@ 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) +@@ -953,8 +953,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnect + /* 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 -urNp linux-3.1.1/fs/cifs/link.c linux-3.1.1/fs/cifs/link.c +--- linux-3.1.1/fs/cifs/link.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cifs/link.c 2011-11-16 18:39:08.000000000 -0500 +@@ -593,7 +593,7 @@ 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 -urNp linux-3.1.1/fs/cifs/misc.c linux-3.1.1/fs/cifs/misc.c +--- linux-3.1.1/fs/cifs/misc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/cifs/misc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/coda/cache.c linux-3.1.1/fs/coda/cache.c +--- linux-3.1.1/fs/coda/cache.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/coda/cache.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 *inod + 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 + { + 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 + 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 -urNp linux-3.1.1/fs/compat_binfmt_elf.c linux-3.1.1/fs/compat_binfmt_elf.c +--- linux-3.1.1/fs/compat_binfmt_elf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/compat_binfmt_elf.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/compat.c linux-3.1.1/fs/compat.c +--- linux-3.1.1/fs/compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/compat.c 2011-11-16 18:40:29.000000000 -0500 +@@ -133,8 +133,8 @@ asmlinkage long compat_sys_utimes(const + static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf) + { + compat_ino_t ino = stat->ino; +- typeof(ubuf->st_uid) uid = 0; +- typeof(ubuf->st_gid) gid = 0; ++ typeof(((struct compat_stat *)0)->st_uid) uid = 0; ++ typeof(((struct compat_stat *)0)->st_gid) gid = 0; + int err; + + SET_UID(uid, stat->uid); +@@ -508,7 +508,7 @@ compat_sys_io_setup(unsigned nr_reqs, u3 + + 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) +@@ -566,7 +566,7 @@ ssize_t compat_rw_copy_check_uvector(int + 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; +@@ -848,6 +848,7 @@ struct compat_old_linux_dirent { + + struct compat_readdir_callback { + struct compat_old_linux_dirent __user *dirent; ++ struct file * file; + int result; + }; + +@@ -865,6 +866,10 @@ static int compat_fillonedir(void *__buf + 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, +@@ -897,6 +902,7 @@ asmlinkage long compat_sys_old_readdir(u + + buf.result = 0; + buf.dirent = dirent; ++ buf.file = file; + + error = vfs_readdir(file, compat_fillonedir, &buf); + if (buf.result) +@@ -917,6 +923,7 @@ 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; + }; +@@ -938,6 +945,10 @@ static int compat_filldir(void *__buf, c + 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)) +@@ -985,6 +996,7 @@ asmlinkage long compat_sys_getdents(unsi + buf.previous = NULL; + buf.count = count; + buf.error = 0; ++ buf.file = file; + + error = vfs_readdir(file, compat_filldir, &buf); + if (error >= 0) +@@ -1006,6 +1018,7 @@ out: + struct compat_getdents_callback64 { + struct linux_dirent64 __user *current_dir; + struct linux_dirent64 __user *previous; ++ struct file * file; + int count; + int error; + }; +@@ -1022,6 +1035,10 @@ static int compat_filldir64(void * __buf + 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) { +@@ -1073,13 +1090,14 @@ asmlinkage long compat_sys_getdents64(un + 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 +@@ -1446,6 +1464,8 @@ int compat_core_sys_select(int n, compat + struct fdtable *fdt; + long stack_fds[SELECT_STACK_ALLOC/sizeof(long)]; + ++ pax_track_stack(); ++ + if (n < 0) + goto out_nofds; + +diff -urNp linux-3.1.1/fs/compat_ioctl.c linux-3.1.1/fs/compat_ioctl.c +--- linux-3.1.1/fs/compat_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/compat_ioctl.c 2011-11-16 18:39:08.000000000 -0500 +@@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsi + + 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 + 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(stru + 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); +@@ -1644,8 +1646,8 @@ asmlinkage long compat_sys_ioctl(unsigne + 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 -urNp linux-3.1.1/fs/configfs/dir.c linux-3.1.1/fs/configfs/dir.c +--- linux-3.1.1/fs/configfs/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/configfs/dir.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1575,7 +1575,8 @@ static int configfs_readdir(struct file + } + 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; + +@@ -1585,7 +1586,12 @@ static int configfs_readdir(struct file + 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 -urNp linux-3.1.1/fs/dcache.c linux-3.1.1/fs/dcache.c +--- linux-3.1.1/fs/dcache.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/dcache.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2998,7 +2998,7 @@ void __init vfs_caches_init(unsigned lon + 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 -urNp linux-3.1.1/fs/ecryptfs/inode.c linux-3.1.1/fs/ecryptfs/inode.c +--- linux-3.1.1/fs/ecryptfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ecryptfs/inode.c 2011-11-16 18:39:08.000000000 -0500 +@@ -681,7 +681,7 @@ static int ecryptfs_readlink_lower(struc + 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) +@@ -727,7 +727,7 @@ static void *ecryptfs_follow_link(struct + } + 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); +@@ -742,7 +742,7 @@ 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 -urNp linux-3.1.1/fs/ecryptfs/miscdev.c linux-3.1.1/fs/ecryptfs/miscdev.c +--- linux-3.1.1/fs/ecryptfs/miscdev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ecryptfs/miscdev.c 2011-11-16 18:39:08.000000000 -0500 +@@ -328,7 +328,7 @@ check_list: + goto out_unlock_msg_ctx; + i = 5; + 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 -urNp linux-3.1.1/fs/ecryptfs/read_write.c linux-3.1.1/fs/ecryptfs/read_write.c +--- linux-3.1.1/fs/ecryptfs/read_write.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ecryptfs/read_write.c 2011-11-16 18:39:08.000000000 -0500 +@@ -48,7 +48,7 @@ int ecryptfs_write_lower(struct inode *e + 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; +@@ -235,7 +235,7 @@ int ecryptfs_read_lower(char *data, loff + 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 -urNp linux-3.1.1/fs/exec.c linux-3.1.1/fs/exec.c +--- linux-3.1.1/fs/exec.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/exec.c 2011-11-17 18:40:47.000000000 -0500 +@@ -55,12 +55,24 @@ + #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 <asm/uaccess.h> + #include <asm/mmu_context.h> + #include <asm/tlb.h> + #include "internal.h" + ++#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; +@@ -70,7 +82,7 @@ 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 */ + +@@ -188,18 +200,10 @@ static struct page *get_arg_page(struct + 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) { +@@ -274,6 +278,11 @@ static int __bprm_mm_init(struct linux_b + 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); + +@@ -288,6 +297,12 @@ static int __bprm_mm_init(struct linux_b + 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 ^= (pax_get_random_long() & ~15) & ~PAGE_MASK; ++#endif ++ + return 0; + err: + up_write(&mm->mmap_sem); +@@ -396,19 +411,7 @@ 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; + +@@ -417,14 +420,14 @@ static const char __user *get_user_arg_p + 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; + } +@@ -443,7 +446,7 @@ static int count(struct user_arg_ptr arg + if (!p) + break; + +- if (IS_ERR(p)) ++ if (IS_ERR((const char __force_kernel *)p)) + return -EFAULT; + + if (i++ >= max) +@@ -477,7 +480,7 @@ static int copy_strings(int argc, struct + + 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); +@@ -559,7 +562,7 @@ int copy_strings_kernel(int argc, const + 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); +@@ -594,7 +597,8 @@ static int shift_arg_pages(struct vm_are + 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 +@@ -603,6 +607,10 @@ static int shift_arg_pages(struct vm_are + 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) + */ +@@ -683,10 +691,6 @@ int setup_arg_pages(struct linux_binprm + 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; +@@ -698,8 +702,28 @@ int setup_arg_pages(struct linux_binprm + 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 +@@ -718,13 +742,6 @@ int setup_arg_pages(struct linux_binprm + 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; + +@@ -805,7 +822,7 @@ int kernel_read(struct file *file, loff_ + 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; + } +@@ -1251,7 +1268,7 @@ int check_unsafe_exec(struct linux_binpr + } + 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; +@@ -1454,6 +1471,11 @@ static int do_execve_common(const char * + 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; +@@ -1461,6 +1483,8 @@ static int do_execve_common(const char * + 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 +@@ -1507,6 +1531,16 @@ static int do_execve_common(const char * + 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; +@@ -1536,9 +1570,40 @@ static int do_execve_common(const char * + if (retval < 0) + goto out; + ++ if (!gr_tpe_allow(file)) { ++ retval = -EACCES; ++ goto out; ++ } ++ ++ if (gr_check_crash_exec(file)) { ++ retval = -EACCES; ++ goto out; ++ } ++ ++ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); ++ ++ gr_handle_exec_args(bprm, argv); ++ ++#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 ++ ++ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt, ++ bprm->unsafe & LSM_UNSAFE_SHARE); ++ if (retval < 0) ++ goto out_fail; ++ + 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 */ + current->fs->in_exec = 0; +@@ -1549,6 +1614,14 @@ static int do_execve_common(const char * + 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); +@@ -1622,7 +1695,7 @@ static int expand_corename(struct core_n + { + 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) { +@@ -1719,7 +1792,7 @@ static int format_corename(struct core_n + 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; + +@@ -1816,6 +1889,218 @@ 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 ++} ++ ++NORET_TYPE 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 ++ + static int zap_process(struct task_struct *start, int exit_code) + { + struct task_struct *t; +@@ -2027,17 +2312,17 @@ static void wait_for_dump_helpers(struct + 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); + + } +@@ -2098,7 +2383,7 @@ void do_coredump(long signr, int exit_co + 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, +@@ -2113,6 +2398,9 @@ void do_coredump(long signr, int exit_co + + 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; +@@ -2180,7 +2468,7 @@ void do_coredump(long signr, int exit_co + } + 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); +@@ -2207,6 +2495,8 @@ void do_coredump(long signr, int exit_co + } else { + struct inode *inode; + ++ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1); ++ + if (cprm.limit < binfmt->min_coredump) + goto fail_unlock; + +@@ -2250,7 +2540,7 @@ 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: +@@ -2269,7 +2559,7 @@ 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 -urNp linux-3.1.1/fs/ext2/balloc.c linux-3.1.1/fs/ext2/balloc.c +--- linux-3.1.1/fs/ext2/balloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext2/balloc.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct e + + 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 -urNp linux-3.1.1/fs/ext3/balloc.c linux-3.1.1/fs/ext3/balloc.c +--- linux-3.1.1/fs/ext3/balloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext3/balloc.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1446,7 +1446,7 @@ static int ext3_has_free_blocks(struct e + + 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 -urNp linux-3.1.1/fs/ext4/balloc.c linux-3.1.1/fs/ext4/balloc.c +--- linux-3.1.1/fs/ext4/balloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext4/balloc.c 2011-11-16 18:40:29.000000000 -0500 +@@ -394,8 +394,8 @@ static int ext4_has_free_blocks(struct e + /* Hm, nope. Are (enough) root reserved blocks 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_blocks >= (nblocks + dirty_blocks)) + return 1; +diff -urNp linux-3.1.1/fs/ext4/ext4.h linux-3.1.1/fs/ext4/ext4.h +--- linux-3.1.1/fs/ext4/ext4.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext4/ext4.h 2011-11-16 18:39:08.000000000 -0500 +@@ -1180,19 +1180,19 @@ 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 -urNp linux-3.1.1/fs/ext4/file.c linux-3.1.1/fs/ext4/file.c +--- linux-3.1.1/fs/ext4/file.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext4/file.c 2011-11-16 18:40:29.000000000 -0500 +@@ -181,8 +181,8 @@ static int ext4_file_open(struct inode * + path.dentry = mnt->mnt_root; + cp = d_path(&path, buf, sizeof(buf)); + if (!IS_ERR(cp)) { +- memcpy(sbi->s_es->s_last_mounted, cp, +- sizeof(sbi->s_es->s_last_mounted)); ++ strlcpy(sbi->s_es->s_last_mounted, cp, ++ sizeof(sbi->s_es->s_last_mounted)); + ext4_mark_super_dirty(sb); + } + } +diff -urNp linux-3.1.1/fs/ext4/ioctl.c linux-3.1.1/fs/ext4/ioctl.c +--- linux-3.1.1/fs/ext4/ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext4/ioctl.c 2011-11-16 18:39:08.000000000 -0500 +@@ -348,7 +348,7 @@ mext_out: + if (!blk_queue_discard(q)) + return -EOPNOTSUPP; + +- if (copy_from_user(&range, (struct fstrim_range *)arg, ++ if (copy_from_user(&range, (struct fstrim_range __user *)arg, + sizeof(range))) + return -EFAULT; + +@@ -358,7 +358,7 @@ mext_out: + if (ret < 0) + return ret; + +- if (copy_to_user((struct fstrim_range *)arg, &range, ++ if (copy_to_user((struct fstrim_range __user *)arg, &range, + sizeof(range))) + return -EFAULT; + +diff -urNp linux-3.1.1/fs/ext4/mballoc.c linux-3.1.1/fs/ext4/mballoc.c +--- linux-3.1.1/fs/ext4/mballoc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ext4/mballoc.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1795,7 +1795,7 @@ void ext4_mb_simple_scan_group(struct ex + 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; + } +@@ -2089,7 +2089,7 @@ 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; + } + } +@@ -2132,6 +2132,8 @@ static int ext4_mb_seq_groups_show(struc + ext4_grpblk_t counters[16]; + } sg; + ++ pax_track_stack(); ++ + group--; + if (group == 0) + seq_printf(seq, "#%-5s: %-5s %-5s %-5s " +@@ -2573,25 +2575,25 @@ int ext4_mb_release(struct super_block * + 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); +@@ -3070,16 +3072,16 @@ static void ext4_mb_collect_stats(struct + 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) +@@ -3477,7 +3479,7 @@ ext4_mb_new_inode_pa(struct ext4_allocat + trace_ext4_mb_new_inode_pa(ac, pa); + + ext4_mb_use_inode_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); + + ei = EXT4_I(ac->ac_inode); + grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group); +@@ -3537,7 +3539,7 @@ ext4_mb_new_group_pa(struct ext4_allocat + 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; +@@ -3625,7 +3627,7 @@ ext4_mb_release_inode_pa(struct ext4_bud + * from the bitmap and continue. + */ + } +- atomic_add(free, &sbi->s_mb_discarded); ++ atomic_add_unchecked(free, &sbi->s_mb_discarded); + + return err; + } +@@ -3643,7 +3645,7 @@ ext4_mb_release_group_pa(struct ext4_bud + 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 -urNp linux-3.1.1/fs/fcntl.c linux-3.1.1/fs/fcntl.c +--- linux-3.1.1/fs/fcntl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fcntl.c 2011-11-16 23:40:25.000000000 -0500 +@@ -224,6 +224,11 @@ int __f_setown(struct file *filp, struct + 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 + + 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 in + 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 -urNp linux-3.1.1/fs/fifo.c linux-3.1.1/fs/fifo.c +--- linux-3.1.1/fs/fifo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fifo.c 2011-11-16 18:39:08.000000000 -0500 +@@ -58,10 +58,10 @@ static int fifo_open(struct inode *inode + */ + 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 + * 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 + */ + 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 + 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 -urNp linux-3.1.1/fs/file.c linux-3.1.1/fs/file.c +--- linux-3.1.1/fs/file.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/file.c 2011-11-16 18:40:29.000000000 -0500 +@@ -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> +@@ -254,6 +255,7 @@ int expand_files(struct files_struct *fi + * 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 -urNp linux-3.1.1/fs/filesystems.c linux-3.1.1/fs/filesystems.c +--- linux-3.1.1/fs/filesystems.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/filesystems.c 2011-11-16 18:40:29.000000000 -0500 +@@ -274,7 +274,12 @@ struct file_system_type *get_fs_type(con + 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 -urNp linux-3.1.1/fs/fscache/cookie.c linux-3.1.1/fs/fscache/cookie.c +--- linux-3.1.1/fs/fscache/cookie.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/cookie.c 2011-11-16 18:39:08.000000000 -0500 +@@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire + 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 + /* 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 + + 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 + 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_coo + 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 f + 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 fsca + 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 + 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 + + /* 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 -urNp linux-3.1.1/fs/fscache/internal.h linux-3.1.1/fs/fscache/internal.h +--- linux-3.1.1/fs/fscache/internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/internal.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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_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_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_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_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_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_t fscache_n_marks; +-extern atomic_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_t fscache_n_updates; +-extern atomic_t fscache_n_updates_null; +-extern atomic_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_t fscache_n_cookie_index; +-extern atomic_t fscache_n_cookie_data; +-extern atomic_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_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_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_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_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_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_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_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_unchecked_t fscache_n_marks; ++extern atomic_unchecked_t fscache_n_uncaches; ++ ++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_unchecked_t fscache_n_updates; ++extern atomic_unchecked_t fscache_n_updates_null; ++extern atomic_unchecked_t fscache_n_updates_run; ++ ++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_unchecked_t fscache_n_cookie_index; ++extern atomic_unchecked_t fscache_n_cookie_data; ++extern atomic_unchecked_t fscache_n_cookie_special; ++ ++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_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 + 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 fsca + + #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 -urNp linux-3.1.1/fs/fscache/object.c linux-3.1.1/fs/fscache/object.c +--- linux-3.1.1/fs/fscache/object.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/object.c 2011-11-16 18:39:08.000000000 -0500 +@@ -128,7 +128,7 @@ static void fscache_object_state_machine + /* 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 + 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 + 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 + 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 + 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(stru + + 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 fsca + * 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 fsca + 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(str + 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( + 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( + 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 -urNp linux-3.1.1/fs/fscache/operation.c linux-3.1.1/fs/fscache/operation.c +--- linux-3.1.1/fs/fscache/operation.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/operation.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 fs + 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 fscach + 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 f + 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 f + 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_obj + 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_obj + 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_ope + + 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 fscach + 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 fscach + * 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_st + + _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 -urNp linux-3.1.1/fs/fscache/page.c linux-3.1.1/fs/fscache/page.c +--- linux-3.1.1/fs/fscache/page.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/page.c 2011-11-16 18:39:08.000000000 -0500 +@@ -60,7 +60,7 @@ bool __fscache_maybe_release_page(struct + 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 + 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(struc + 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(stru + + _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 fscach + + 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 fscach + 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 fscach + 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 + /* 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_loo + 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_loo + */ + 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_ac + 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_ac + + 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 + + _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 + 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 + + 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 + + _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 + 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 + + 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_ + + _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_ + 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_ + + 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 fsca + + 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 fsca + 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 fsca + 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_ + 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_ + 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_ + + 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_ + 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 fscac + 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 fs + 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 -urNp linux-3.1.1/fs/fscache/stats.c linux-3.1.1/fs/fscache/stats.c +--- linux-3.1.1/fs/fscache/stats.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fscache/stats.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_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_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_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_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_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_t fscache_n_marks; +-atomic_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_t fscache_n_updates; +-atomic_t fscache_n_updates_null; +-atomic_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_t fscache_n_cookie_index; +-atomic_t fscache_n_cookie_data; +-atomic_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_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_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_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_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_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_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_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_unchecked_t fscache_n_marks; ++atomic_unchecked_t fscache_n_uncaches; ++ ++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_unchecked_t fscache_n_updates; ++atomic_unchecked_t fscache_n_updates_null; ++atomic_unchecked_t fscache_n_updates_run; ++ ++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_unchecked_t fscache_n_cookie_index; ++atomic_unchecked_t fscache_n_cookie_data; ++atomic_unchecked_t fscache_n_cookie_special; ++ ++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_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 + 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 -urNp linux-3.1.1/fs/fs_struct.c linux-3.1.1/fs/fs_struct.c +--- linux-3.1.1/fs/fs_struct.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fs_struct.c 2011-11-16 18:40:29.000000000 -0500 +@@ -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, s + old_root = fs->root; + fs->root = *path; + path_get_longterm(path); ++ gr_set_chroot_entries(current, path); + write_seqcount_end(&fs->seq); + spin_unlock(&fs->lock); + if (old_root.dentry) +@@ -74,6 +76,7 @@ void chroot_fs_refs(struct path *old_roo + && fs->root.mnt == old_root->mnt) { + path_get_longterm(new_root); + fs->root = *new_root; ++ gr_set_chroot_entries(p, new_root); + count++; + } + if (fs->pwd.dentry == old_root->dentry +@@ -109,7 +112,8 @@ void exit_fs(struct task_struct *tsk) + spin_lock(&fs->lock); + write_seqcount_begin(&fs->seq); + tsk->fs = NULL; +- kill = !--fs->users; ++ gr_clear_chroot_entries(tsk); ++ kill = !atomic_dec_return(&fs->users); + write_seqcount_end(&fs->seq); + spin_unlock(&fs->lock); + task_unlock(tsk); +@@ -123,7 +127,7 @@ struct fs_struct *copy_fs_struct(struct + 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); +@@ -132,6 +136,9 @@ struct fs_struct *copy_fs_struct(struct + 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); +@@ -150,8 +157,9 @@ 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); + +@@ -170,7 +178,7 @@ 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, +@@ -186,12 +194,13 @@ 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 -urNp linux-3.1.1/fs/fuse/cuse.c linux-3.1.1/fs/fuse/cuse.c +--- linux-3.1.1/fs/fuse/cuse.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fuse/cuse.c 2011-11-16 18:39:08.000000000 -0500 +@@ -586,10 +586,12 @@ 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 -urNp linux-3.1.1/fs/fuse/dev.c linux-3.1.1/fs/fuse/dev.c +--- linux-3.1.1/fs/fuse/dev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fuse/dev.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1242,7 +1242,7 @@ static ssize_t fuse_dev_splice_read(stru + ret = 0; + pipe_lock(pipe); + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +diff -urNp linux-3.1.1/fs/fuse/dir.c linux-3.1.1/fs/fuse/dir.c +--- linux-3.1.1/fs/fuse/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/fuse/dir.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1147,7 +1147,7 @@ static char *read_link(struct dentry *de + 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 -urNp linux-3.1.1/fs/gfs2/inode.c linux-3.1.1/fs/gfs2/inode.c +--- linux-3.1.1/fs/gfs2/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/gfs2/inode.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1517,7 +1517,7 @@ 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 -urNp linux-3.1.1/fs/hfsplus/catalog.c linux-3.1.1/fs/hfsplus/catalog.c +--- linux-3.1.1/fs/hfsplus/catalog.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hfsplus/catalog.c 2011-11-16 19:23:09.000000000 -0500 +@@ -179,6 +179,8 @@ int hfsplus_find_cat(struct super_block + int err; + u16 type; + ++ pax_track_stack(); ++ + hfsplus_cat_build_key(sb, fd->search_key, cnid, NULL); + err = hfs_brec_read(fd, &tmp, sizeof(hfsplus_cat_entry)); + if (err) +@@ -210,6 +212,8 @@ int hfsplus_create_cat(u32 cnid, struct + int entry_size; + int err; + ++ pax_track_stack(); ++ + dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", + str->name, cnid, inode->i_nlink); + err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); +@@ -353,6 +357,8 @@ int hfsplus_rename_cat(u32 cnid, + int entry_size, type; + int err; + ++ pax_track_stack(); ++ + dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", + cnid, src_dir->i_ino, src_name->name, + dst_dir->i_ino, dst_name->name); +diff -urNp linux-3.1.1/fs/hfsplus/dir.c linux-3.1.1/fs/hfsplus/dir.c +--- linux-3.1.1/fs/hfsplus/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hfsplus/dir.c 2011-11-16 18:40:29.000000000 -0500 +@@ -131,6 +131,8 @@ static int hfsplus_readdir(struct file * + struct hfsplus_readdir_data *rd; + u16 type; + ++ pax_track_stack(); ++ + if (filp->f_pos >= inode->i_size) + return 0; + +diff -urNp linux-3.1.1/fs/hfsplus/inode.c linux-3.1.1/fs/hfsplus/inode.c +--- linux-3.1.1/fs/hfsplus/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hfsplus/inode.c 2011-11-16 18:40:29.000000000 -0500 +@@ -501,6 +501,8 @@ int hfsplus_cat_read_inode(struct inode + int res = 0; + u16 type; + ++ pax_track_stack(); ++ + type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); + + HFSPLUS_I(inode)->linkid = 0; +@@ -564,6 +566,8 @@ int hfsplus_cat_write_inode(struct inode + struct hfs_find_data fd; + hfsplus_cat_entry entry; + ++ pax_track_stack(); ++ + if (HFSPLUS_IS_RSRC(inode)) + main_inode = HFSPLUS_I(inode)->rsrc_inode; + +diff -urNp linux-3.1.1/fs/hfsplus/ioctl.c linux-3.1.1/fs/hfsplus/ioctl.c +--- linux-3.1.1/fs/hfsplus/ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hfsplus/ioctl.c 2011-11-16 18:40:29.000000000 -0500 +@@ -122,6 +122,8 @@ int hfsplus_setxattr(struct dentry *dent + struct hfsplus_cat_file *file; + int res; + ++ pax_track_stack(); ++ + if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode)) + return -EOPNOTSUPP; + +@@ -166,6 +168,8 @@ ssize_t hfsplus_getxattr(struct dentry * + struct hfsplus_cat_file *file; + ssize_t res = 0; + ++ pax_track_stack(); ++ + if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode)) + return -EOPNOTSUPP; + +diff -urNp linux-3.1.1/fs/hfsplus/super.c linux-3.1.1/fs/hfsplus/super.c +--- linux-3.1.1/fs/hfsplus/super.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hfsplus/super.c 2011-11-16 19:23:30.000000000 -0500 +@@ -347,6 +347,8 @@ static int hfsplus_fill_super(struct sup + u64 last_fs_block, last_fs_page; + int err; + ++ pax_track_stack(); ++ + err = -EINVAL; + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); + if (!sbi) +diff -urNp linux-3.1.1/fs/hugetlbfs/inode.c linux-3.1.1/fs/hugetlbfs/inode.c +--- linux-3.1.1/fs/hugetlbfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/hugetlbfs/inode.c 2011-11-16 18:40:29.000000000 -0500 +@@ -915,7 +915,7 @@ static struct file_system_type hugetlbfs + .kill_sb = kill_litter_super, + }; + +-static struct vfsmount *hugetlbfs_vfsmount; ++struct vfsmount *hugetlbfs_vfsmount; + + static int can_do_hugetlb_shm(void) + { +diff -urNp linux-3.1.1/fs/inode.c linux-3.1.1/fs/inode.c +--- linux-3.1.1/fs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/inode.c 2011-11-16 18:39:08.000000000 -0500 +@@ -787,8 +787,8 @@ 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 -urNp linux-3.1.1/fs/jbd/checkpoint.c linux-3.1.1/fs/jbd/checkpoint.c +--- linux-3.1.1/fs/jbd/checkpoint.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jbd/checkpoint.c 2011-11-16 18:40:29.000000000 -0500 +@@ -358,6 +358,8 @@ int log_do_checkpoint(journal_t *journal + tid_t this_tid; + int result; + ++ pax_track_stack(); ++ + jbd_debug(1, "Start checkpoint\n"); + + /* +diff -urNp linux-3.1.1/fs/jffs2/compr_rtime.c linux-3.1.1/fs/jffs2/compr_rtime.c +--- linux-3.1.1/fs/jffs2/compr_rtime.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jffs2/compr_rtime.c 2011-11-16 18:40:29.000000000 -0500 +@@ -37,6 +37,8 @@ static int jffs2_rtime_compress(unsigned + int outpos = 0; + int pos=0; + ++ pax_track_stack(); ++ + memset(positions,0,sizeof(positions)); + + while (pos < (*sourcelen) && outpos <= (*dstlen)-2) { +@@ -78,6 +80,8 @@ static int jffs2_rtime_decompress(unsign + int outpos = 0; + int pos=0; + ++ pax_track_stack(); ++ + memset(positions,0,sizeof(positions)); + + while (outpos<destlen) { +diff -urNp linux-3.1.1/fs/jffs2/compr_rubin.c linux-3.1.1/fs/jffs2/compr_rubin.c +--- linux-3.1.1/fs/jffs2/compr_rubin.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jffs2/compr_rubin.c 2011-11-16 18:40:29.000000000 -0500 +@@ -314,6 +314,8 @@ static int jffs2_dynrubin_compress(unsig + int ret; + uint32_t mysrclen, mydstlen; + ++ pax_track_stack(); ++ + mysrclen = *sourcelen; + mydstlen = *dstlen - 8; + +diff -urNp linux-3.1.1/fs/jffs2/erase.c linux-3.1.1/fs/jffs2/erase.c +--- linux-3.1.1/fs/jffs2/erase.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jffs2/erase.c 2011-11-16 18:39:08.000000000 -0500 +@@ -439,7 +439,8 @@ static void jffs2_mark_erased_block(stru + 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 -urNp linux-3.1.1/fs/jffs2/wbuf.c linux-3.1.1/fs/jffs2/wbuf.c +--- linux-3.1.1/fs/jffs2/wbuf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jffs2/wbuf.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1012,7 +1012,8 @@ static const struct jffs2_unknown_node o + { + .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 -urNp linux-3.1.1/fs/jffs2/xattr.c linux-3.1.1/fs/jffs2/xattr.c +--- linux-3.1.1/fs/jffs2/xattr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jffs2/xattr.c 2011-11-16 18:40:29.000000000 -0500 +@@ -773,6 +773,8 @@ void jffs2_build_xattr_subsystem(struct + + BUG_ON(!(c->flags & JFFS2_SB_FLAG_BUILDING)); + ++ pax_track_stack(); ++ + /* Phase.1 : Merge same xref */ + for (i=0; i < XREF_TMPHASH_SIZE; i++) + xref_tmphash[i] = NULL; +diff -urNp linux-3.1.1/fs/jfs/super.c linux-3.1.1/fs/jfs/super.c +--- linux-3.1.1/fs/jfs/super.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/jfs/super.c 2011-11-16 18:39:08.000000000 -0500 +@@ -803,7 +803,7 @@ 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 -urNp linux-3.1.1/fs/Kconfig.binfmt linux-3.1.1/fs/Kconfig.binfmt +--- linux-3.1.1/fs/Kconfig.binfmt 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/Kconfig.binfmt 2011-11-16 18:39:08.000000000 -0500 +@@ -86,7 +86,7 @@ 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 -urNp linux-3.1.1/fs/libfs.c linux-3.1.1/fs/libfs.c +--- linux-3.1.1/fs/libfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/libfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -165,6 +165,9 @@ int dcache_readdir(struct file * filp, v + + 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, v + + 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 -urNp linux-3.1.1/fs/lockd/clntproc.c linux-3.1.1/fs/lockd/clntproc.c +--- linux-3.1.1/fs/lockd/clntproc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/lockd/clntproc.c 2011-11-16 18:40:29.000000000 -0500 +@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt + /* + * 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; +@@ -621,6 +621,8 @@ nlmclnt_reclaim(struct nlm_host *host, s + struct nlm_rqst reqst, *req; + int status; + ++ pax_track_stack(); ++ + req = &reqst; + memset(req, 0, sizeof(*req)); + locks_init_lock(&req->a_args.lock.fl); +diff -urNp linux-3.1.1/fs/locks.c linux-3.1.1/fs/locks.c +--- linux-3.1.1/fs/locks.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/locks.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2022,16 +2022,16 @@ void locks_remove_flock(struct file *fil + 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 -urNp linux-3.1.1/fs/logfs/super.c linux-3.1.1/fs/logfs/super.c +--- linux-3.1.1/fs/logfs/super.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/logfs/super.c 2011-11-16 18:40:29.000000000 -0500 +@@ -266,6 +266,8 @@ static int logfs_recover_sb(struct super + struct logfs_disk_super _ds1, *ds1 = &_ds1; + int err, valid0, valid1; + ++ pax_track_stack(); ++ + /* read first superblock */ + err = wbuf_read(sb, super->s_sb_ofs[0], sizeof(*ds0), ds0); + if (err) +diff -urNp linux-3.1.1/fs/namei.c linux-3.1.1/fs/namei.c +--- linux-3.1.1/fs/namei.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/namei.c 2011-11-17 00:36:54.000000000 -0500 +@@ -283,14 +283,22 @@ int generic_permission(struct inode *ino + + 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)) + 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(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. +@@ -299,14 +307,6 @@ int generic_permission(struct inode *ino + 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; + } + +@@ -653,11 +653,19 @@ follow_link(struct path *link, struct na + 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); +@@ -1622,6 +1630,12 @@ static int path_lookupat(int dfd, const + if (!err) + err = complete_walk(nd); + ++ if (!(nd->flags & LOOKUP_PARENT) && !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); +@@ -1649,6 +1663,9 @@ static int do_path_lookup(int dfd, const + retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd); + + if (likely(!retval)) { ++ if (*name != '/' && nd->path.dentry && nd->inode && !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); +@@ -2049,7 +2066,27 @@ static int may_open(struct path *path, i + /* + * Ensure there are no outstanding leases on the file. + */ +- return break_lease(inode, flag); ++ error = break_lease(inode, flag); ++ ++ if (error) ++ return error; ++ ++ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode)) { ++ error = -EPERM; ++ goto exit; ++ } ++ ++ if (gr_handle_rawio(inode)) { ++ error = -EPERM; ++ goto exit; ++ } ++ ++ if (!gr_acl_handle_open(dentry, path->mnt, acc_mode)) { ++ error = -EACCES; ++ goto exit; ++ } ++exit: ++ return error; + } + + static int handle_truncate(struct file *filp) +@@ -2110,6 +2147,10 @@ static struct file *do_last(struct namei + error = complete_walk(nd); + if (error) + return ERR_PTR(error); ++ 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; +@@ -2120,6 +2161,10 @@ static struct file *do_last(struct namei + error = complete_walk(nd); + if (error) + return ERR_PTR(error); ++ if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit; ++ } + audit_inode(pathname, dir); + goto ok; + } +@@ -2142,6 +2187,11 @@ static struct file *do_last(struct namei + if (error) + return ERR_PTR(-ECHILD); + ++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { ++ error = -ENOENT; ++ goto exit; ++ } ++ + error = -ENOTDIR; + if (nd->flags & LOOKUP_DIRECTORY) { + if (!nd->inode->i_op->lookup) +@@ -2181,6 +2231,12 @@ static struct file *do_last(struct namei + /* Negative dentry, just create the file */ + if (!dentry->d_inode) { + int 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(); + /* +@@ -2204,6 +2260,8 @@ static struct file *do_last(struct namei + 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; +@@ -2213,6 +2271,19 @@ static struct file *do_last(struct namei + /* + * 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); + +@@ -2425,6 +2496,11 @@ struct dentry *kern_path_create(int dfd, + *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: +@@ -2447,6 +2523,20 @@ struct dentry *user_path_create(int dfd, + } + 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, int mode, dev_t dev) + { + int error = may_create(dir, dentry); +@@ -2514,6 +2604,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const + 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; +@@ -2531,6 +2632,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const + } + 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); +@@ -2580,12 +2684,21 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const + 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); +@@ -2665,6 +2778,8 @@ static long do_rmdir(int dfd, const char + 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) +@@ -2693,6 +2808,15 @@ static long do_rmdir(int dfd, const char + 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; +@@ -2700,6 +2824,8 @@ static long do_rmdir(int dfd, const char + 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: +@@ -2762,6 +2888,8 @@ static long do_unlinkat(int dfd, const c + 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) +@@ -2784,6 +2912,16 @@ static long do_unlinkat(int dfd, const c + 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; +@@ -2791,6 +2929,8 @@ static long do_unlinkat(int dfd, const c + 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: +@@ -2866,10 +3006,18 @@ SYSCALL_DEFINE3(symlinkat, const char __ + 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: +@@ -2941,6 +3089,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con + { + struct dentry *new_dentry; + struct path old_path, new_path; ++ char *to; + int how = 0; + int error; + +@@ -2964,7 +3113,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con + 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; +@@ -2975,13 +3124,30 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con + 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); +@@ -3153,6 +3319,8 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c + char *to; + int error; + ++ pax_track_stack(); ++ + error = user_path_parent(olddfd, oldname, &oldnd, &from); + if (error) + goto exit; +@@ -3209,6 +3377,12 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c + 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; +@@ -3218,6 +3392,9 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c + 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: +@@ -3243,6 +3420,8 @@ SYSCALL_DEFINE2(rename, const char __use + + 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); +@@ -3252,7 +3431,14 @@ int vfs_readlink(struct dentry *dentry, + 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 -urNp linux-3.1.1/fs/namespace.c linux-3.1.1/fs/namespace.c +--- linux-3.1.1/fs/namespace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/namespace.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1329,6 +1329,9 @@ static int do_umount(struct vfsmount *mn + 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; + } + +@@ -1348,6 +1351,9 @@ static int do_umount(struct vfsmount *mn + br_write_unlock(vfsmount_lock); + up_write(&namespace_sem); + release_mounts(&umount_list); ++ ++ gr_log_unmount(mnt->mnt_devname, retval); ++ + return retval; + } + +@@ -2339,6 +2345,16 @@ long do_mount(char *dev_name, char *dir_ + 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); +@@ -2353,6 +2369,9 @@ long do_mount(char *dev_name, char *dir_ + dev_name, data_page); + dput_out: + path_put(&path); ++ ++ gr_log_mount(dev_name, dir_name, retval); ++ + return retval; + } + +@@ -2576,6 +2595,11 @@ SYSCALL_DEFINE2(pivot_root, const char _ + 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 -urNp linux-3.1.1/fs/ncpfs/dir.c linux-3.1.1/fs/ncpfs/dir.c +--- linux-3.1.1/fs/ncpfs/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ncpfs/dir.c 2011-11-16 18:40:29.000000000 -0500 +@@ -299,6 +299,8 @@ ncp_lookup_validate(struct dentry *dentr + int res, val = 0, len; + __u8 __name[NCP_MAXPATHLEN + 1]; + ++ pax_track_stack(); ++ + if (dentry == dentry->d_sb->s_root) + return 1; + +@@ -844,6 +846,8 @@ static struct dentry *ncp_lookup(struct + int error, res, len; + __u8 __name[NCP_MAXPATHLEN + 1]; + ++ pax_track_stack(); ++ + error = -EIO; + if (!ncp_conn_valid(server)) + goto finished; +@@ -931,6 +935,8 @@ int ncp_create_new(struct inode *dir, st + PPRINTK("ncp_create_new: creating %s/%s, mode=%x\n", + dentry->d_parent->d_name.name, dentry->d_name.name, mode); + ++ pax_track_stack(); ++ + ncp_age_dentry(server, dentry); + len = sizeof(__name); + error = ncp_io2vol(server, __name, &len, dentry->d_name.name, +@@ -992,6 +998,8 @@ static int ncp_mkdir(struct inode *dir, + int error, len; + __u8 __name[NCP_MAXPATHLEN + 1]; + ++ pax_track_stack(); ++ + DPRINTK("ncp_mkdir: making %s/%s\n", + dentry->d_parent->d_name.name, dentry->d_name.name); + +@@ -1140,6 +1148,8 @@ static int ncp_rename(struct inode *old_ + int old_len, new_len; + __u8 __old_name[NCP_MAXPATHLEN + 1], __new_name[NCP_MAXPATHLEN + 1]; + ++ pax_track_stack(); ++ + DPRINTK("ncp_rename: %s/%s to %s/%s\n", + old_dentry->d_parent->d_name.name, old_dentry->d_name.name, + new_dentry->d_parent->d_name.name, new_dentry->d_name.name); +diff -urNp linux-3.1.1/fs/ncpfs/inode.c linux-3.1.1/fs/ncpfs/inode.c +--- linux-3.1.1/fs/ncpfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ncpfs/inode.c 2011-11-16 18:40:29.000000000 -0500 +@@ -461,6 +461,8 @@ static int ncp_fill_super(struct super_b + #endif + struct ncp_entry_info finfo; + ++ pax_track_stack(); ++ + memset(&data, 0, sizeof(data)); + server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); + if (!server) +diff -urNp linux-3.1.1/fs/nfs/blocklayout/blocklayout.c linux-3.1.1/fs/nfs/blocklayout/blocklayout.c +--- linux-3.1.1/fs/nfs/blocklayout/blocklayout.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/nfs/blocklayout/blocklayout.c 2011-11-16 18:39:08.000000000 -0500 +@@ -90,7 +90,7 @@ static int is_writable(struct pnfs_block + */ + struct parallel_io { + struct kref refcnt; +- struct rpc_call_ops call_ops; ++ rpc_call_ops_no_const call_ops; + void (*pnfs_callback) (void *data); + void *data; + }; +diff -urNp linux-3.1.1/fs/nfs/inode.c linux-3.1.1/fs/nfs/inode.c +--- linux-3.1.1/fs/nfs/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/nfs/inode.c 2011-11-16 18:39:08.000000000 -0500 +@@ -150,7 +150,7 @@ static void nfs_zap_caches_locked(struct + 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 +@@ -1002,16 +1002,16 @@ static int nfs_size_need_update(const st + 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 -urNp linux-3.1.1/fs/nfsd/nfs4state.c linux-3.1.1/fs/nfsd/nfs4state.c +--- linux-3.1.1/fs/nfsd/nfs4state.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/nfsd/nfs4state.c 2011-11-16 18:40:29.000000000 -0500 +@@ -3999,6 +3999,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struc + unsigned int strhashval; + int err; + ++ pax_track_stack(); ++ + dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n", + (long long) lock->lk_offset, + (long long) lock->lk_length); +diff -urNp linux-3.1.1/fs/nfsd/nfs4xdr.c linux-3.1.1/fs/nfsd/nfs4xdr.c +--- linux-3.1.1/fs/nfsd/nfs4xdr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/nfsd/nfs4xdr.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1875,6 +1875,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, s + .dentry = dentry, + }; + ++ pax_track_stack(); ++ + BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1); + BUG_ON(bmval0 & ~nfsd_suppattrs0(minorversion)); + BUG_ON(bmval1 & ~nfsd_suppattrs1(minorversion)); +diff -urNp linux-3.1.1/fs/nfsd/vfs.c linux-3.1.1/fs/nfsd/vfs.c +--- linux-3.1.1/fs/nfsd/vfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/nfsd/vfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -896,7 +896,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, st + } 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); + } + +@@ -1000,7 +1000,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, s + + /* 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; +@@ -1535,7 +1535,7 @@ nfsd_readlink(struct svc_rqst *rqstp, st + */ + + oldfs = get_fs(); set_fs(KERNEL_DS); +- host_err = inode->i_op->readlink(dentry, buf, *lenp); ++ host_err = inode->i_op->readlink(dentry, (char __force_user *)buf, *lenp); + set_fs(oldfs); + + if (host_err < 0) +diff -urNp linux-3.1.1/fs/notify/fanotify/fanotify_user.c linux-3.1.1/fs/notify/fanotify/fanotify_user.c +--- linux-3.1.1/fs/notify/fanotify/fanotify_user.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/notify/fanotify/fanotify_user.c 2011-11-16 18:39:08.000000000 -0500 +@@ -276,7 +276,8 @@ static ssize_t copy_event_to_user(struct + 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 -urNp linux-3.1.1/fs/notify/notification.c linux-3.1.1/fs/notify/notification.c +--- linux-3.1.1/fs/notify/notification.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/notify/notification.c 2011-11-16 18:39:08.000000000 -0500 +@@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event + * 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 = A + */ + 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 -urNp linux-3.1.1/fs/ntfs/dir.c linux-3.1.1/fs/ntfs/dir.c +--- linux-3.1.1/fs/ntfs/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ntfs/dir.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/ntfs/file.c linux-3.1.1/fs/ntfs/file.c +--- linux-3.1.1/fs/ntfs/file.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ntfs/file.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2229,6 +2229,6 @@ const struct inode_operations ntfs_file_ + #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 -urNp linux-3.1.1/fs/ocfs2/localalloc.c linux-3.1.1/fs/ocfs2/localalloc.c +--- linux-3.1.1/fs/ocfs2/localalloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/localalloc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1283,7 +1283,7 @@ static int ocfs2_local_alloc_slide_windo + goto bail; + } + +- atomic_inc(&osb->alloc_stats.moves); ++ atomic_inc_unchecked(&osb->alloc_stats.moves); + + bail: + if (handle) +diff -urNp linux-3.1.1/fs/ocfs2/namei.c linux-3.1.1/fs/ocfs2/namei.c +--- linux-3.1.1/fs/ocfs2/namei.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/namei.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1063,6 +1063,8 @@ static int ocfs2_rename(struct inode *ol + struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; + struct ocfs2_dir_lookup_result target_insert = { NULL, }; + ++ pax_track_stack(); ++ + /* At some point it might be nice to break this function up a + * bit. */ + +diff -urNp linux-3.1.1/fs/ocfs2/ocfs2.h linux-3.1.1/fs/ocfs2/ocfs2.h +--- linux-3.1.1/fs/ocfs2/ocfs2.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/ocfs2.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/ocfs2/suballoc.c linux-3.1.1/fs/ocfs2/suballoc.c +--- linux-3.1.1/fs/ocfs2/suballoc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/suballoc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(s + 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 *handl + 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_ + 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 *hand + 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 *han + 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 *han + 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 -urNp linux-3.1.1/fs/ocfs2/super.c linux-3.1.1/fs/ocfs2/super.c +--- linux-3.1.1/fs/ocfs2/super.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/super.c 2011-11-16 18:39:08.000000000 -0500 +@@ -300,11 +300,11 @@ static int ocfs2_osb_dump(struct ocfs2_s + "%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 " +@@ -2112,11 +2112,11 @@ static int ocfs2_initialize_super(struct + 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 -urNp linux-3.1.1/fs/ocfs2/symlink.c linux-3.1.1/fs/ocfs2/symlink.c +--- linux-3.1.1/fs/ocfs2/symlink.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/ocfs2/symlink.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/open.c linux-3.1.1/fs/open.c +--- linux-3.1.1/fs/open.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/open.c 2011-11-17 19:07:55.000000000 -0500 +@@ -112,6 +112,10 @@ static long do_sys_truncate(const char _ + 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 +362,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con + 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 +391,8 @@ SYSCALL_DEFINE1(chdir, const char __user + if (error) + goto dput_and_out; + ++ gr_log_chdir(path.dentry, path.mnt); ++ + set_fs_pwd(current->fs, &path); + + dput_and_out: +@@ -410,6 +419,13 @@ 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 +454,13 @@ SYSCALL_DEFINE1(chroot, const char __use + 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 +478,16 @@ static int chmod_common(struct path *pat + if (error) + return error; + mutex_lock(&inode->i_mutex); ++ ++ if (!gr_acl_handle_fchmod(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->dentry, path->mnt, mode); + if (error) + goto out_unlock; +@@ -506,6 +538,9 @@ static int chown_common(struct path *pat + 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; +diff -urNp linux-3.1.1/fs/partitions/ldm.c linux-3.1.1/fs/partitions/ldm.c +--- linux-3.1.1/fs/partitions/ldm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/partitions/ldm.c 2011-11-17 19:08:15.000000000 -0500 +@@ -1322,7 +1322,7 @@ static bool ldm_frag_add (const u8 *data + goto found; + } + +- f = kmalloc (sizeof (*f) + size*num, GFP_KERNEL); ++ f = kmalloc (size*num + sizeof (*f), GFP_KERNEL); + if (!f) { + ldm_crit ("Out of memory."); + return false; +diff -urNp linux-3.1.1/fs/pipe.c linux-3.1.1/fs/pipe.c +--- linux-3.1.1/fs/pipe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/pipe.c 2011-11-16 18:40:29.000000000 -0500 +@@ -420,9 +420,9 @@ 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 +@@ -481,7 +481,7 @@ pipe_write(struct kiocb *iocb, const str + 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; +@@ -530,7 +530,7 @@ redo1: + for (;;) { + int bufs; + +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +@@ -616,9 +616,9 @@ 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); +@@ -685,7 +685,7 @@ pipe_poll(struct file *filp, poll_table + 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; + } + +@@ -695,7 +695,7 @@ pipe_poll(struct file *filp, poll_table + * 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; + } + +@@ -709,10 +709,10 @@ pipe_release(struct inode *inode, int de + + 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); +@@ -802,7 +802,7 @@ pipe_read_open(struct inode *inode, stru + + if (inode->i_pipe) { + ret = 0; +- inode->i_pipe->readers++; ++ atomic_inc(&inode->i_pipe->readers); + } + + mutex_unlock(&inode->i_mutex); +@@ -819,7 +819,7 @@ pipe_write_open(struct inode *inode, str + + if (inode->i_pipe) { + ret = 0; +- inode->i_pipe->writers++; ++ atomic_inc(&inode->i_pipe->writers); + } + + mutex_unlock(&inode->i_mutex); +@@ -837,9 +837,9 @@ pipe_rdwr_open(struct inode *inode, stru + 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); +@@ -931,7 +931,7 @@ 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(). +@@ -961,7 +961,8 @@ static struct inode * get_pipe_inode(voi + 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 -urNp linux-3.1.1/fs/proc/array.c linux-3.1.1/fs/proc/array.c +--- linux-3.1.1/fs/proc/array.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/array.c 2011-11-17 18:42:02.000000000 -0500 +@@ -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 + 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, + 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 +409,8 @@ static int do_task_stat(struct seq_file + char tcomm[sizeof(task->comm)]; + unsigned long flags; + ++ pax_track_stack(); ++ + state = *get_task_state(task); + vsize = eip = esp = 0; + permitted = ptrace_may_access(task, PTRACE_MODE_READ); +@@ -449,6 +482,19 @@ static int do_task_stat(struct seq_file + 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); +@@ -489,9 +535,15 @@ static int do_task_stat(struct seq_file + vsize, + mm ? get_mm_rss(mm) : 0, + rsslim, ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0), ++ PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0), ++ PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0), ++#else + mm ? (permitted ? mm->start_code : 1) : 0, + mm ? (permitted ? mm->end_code : 1) : 0, + (permitted && mm) ? mm->start_stack : 0, ++#endif + esp, + eip, + /* The signal information here is obsolete. +@@ -544,3 +596,18 @@ int proc_pid_statm(struct seq_file *m, s + + 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 -urNp linux-3.1.1/fs/proc/base.c linux-3.1.1/fs/proc/base.c +--- linux-3.1.1/fs/proc/base.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/base.c 2011-11-17 18:43:19.000000000 -0500 +@@ -107,6 +107,22 @@ 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; ++}; ++ ++static int gr_fake_filldir(void * __buf, const char *name, int namlen, ++ loff_t offset, u64 ino, unsigned int d_type) ++{ ++ struct getdents_callback * buf = (struct getdents_callback *) __buf; ++ buf->error = -EINVAL; ++ return 0; ++} ++ + #define NOD(NAME, MODE, IOP, FOP, OP) { \ + .name = (NAME), \ + .len = sizeof(NAME) - 1, \ +@@ -209,6 +225,9 @@ static struct mm_struct *__check_mem_per + if (task == current) + return mm; + ++ if (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task)) ++ return ERR_PTR(-EPERM); ++ + /* + * If current is actively ptrace'ing, and would also be + * permitted to freshly attach with ptrace now, permit it. +@@ -282,6 +301,9 @@ static int proc_pid_cmdline(struct task_ + 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) +@@ -309,12 +331,28 @@ 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 */ +@@ -328,7 +366,7 @@ static int proc_pid_auxv(struct task_str + } + + +-#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. +@@ -367,7 +405,7 @@ static void unlock_trace(struct task_str + mutex_unlock(&task->signal->cred_guard_mutex); + } + +-#ifdef CONFIG_STACKTRACE ++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM) + + #define MAX_STACK_TRACE_DEPTH 64 + +@@ -558,7 +596,7 @@ static int proc_pid_limits(struct task_s + 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; +@@ -587,7 +625,7 @@ static int proc_pid_syscall(struct task_ + /************************************************************************/ + + /* 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; +@@ -597,7 +635,10 @@ static int proc_fd_access_allowed(struct + */ + task = get_proc_task(inode); + if (task) { +- allowed = ptrace_may_access(task, PTRACE_MODE_READ); ++ if (log) ++ allowed = ptrace_may_access_log(task, PTRACE_MODE_READ); ++ else ++ allowed = ptrace_may_access(task, PTRACE_MODE_READ); + put_task_struct(task); + } + return allowed; +@@ -978,6 +1019,9 @@ static ssize_t environ_read(struct file + 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) +@@ -1613,7 +1657,7 @@ static void *proc_pid_follow_link(struct + 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(inode, &nd->path); +@@ -1652,8 +1696,18 @@ static int proc_pid_readlink(struct dent + 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(inode, &path); + if (error) +@@ -1718,7 +1772,11 @@ struct inode *proc_pid_make_inode(struct + 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); +@@ -1736,6 +1794,9 @@ int pid_getattr(struct vfsmount *mnt, st + struct inode *inode = dentry->d_inode; + struct task_struct *task; + const struct cred *cred; ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ const struct cred *tmpcred = current_cred(); ++#endif + + generic_fillattr(inode, stat); + +@@ -1743,13 +1804,41 @@ int pid_getattr(struct vfsmount *mnt, st + stat->uid = 0; + stat->gid = 0; + task = pid_task(proc_pid(inode), PIDTYPE_PID); ++ ++ if (task && (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))) { ++ rcu_read_unlock(); ++ return -ENOENT; ++ } ++ + if (task) { ++ cred = __task_cred(task); ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ if (!tmpcred->uid || (tmpcred->uid == cred->uid) ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ || in_group_p(CONFIG_GRKERNSEC_PROC_GID) ++#endif ++ ) { ++#endif + 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 + } ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ } else { ++ rcu_read_unlock(); ++ return -ENOENT; ++ } ++#endif + } + rcu_read_unlock(); + return 0; +@@ -1786,11 +1875,20 @@ int pid_revalidate(struct dentry *dentry + + 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; +@@ -1908,7 +2006,8 @@ static int proc_fd_info(struct inode *in + 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) { +@@ -2176,11 +2275,21 @@ static const struct file_operations proc + */ + 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; + } + +@@ -2290,6 +2399,9 @@ static struct dentry *proc_pident_lookup + 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. +@@ -2334,6 +2446,9 @@ static int proc_pident_readdir(struct fi + 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) { +@@ -2604,7 +2719,7 @@ static void *proc_self_follow_link(struc + 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); + } +@@ -2802,7 +2917,7 @@ static const struct pid_entry tgid_base_ + 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), +@@ -2827,10 +2942,10 @@ static const struct pid_entry tgid_base_ + #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 +@@ -2864,6 +2979,9 @@ static const struct pid_entry tgid_base_ + #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, +@@ -2989,7 +3107,14 @@ static struct dentry *proc_pid_instantia + 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; +@@ -3031,7 +3156,14 @@ struct dentry *proc_pid_lookup(struct in + if (!task) + goto out; + ++ if (!has_group_leader_pid(task)) ++ goto out_put_task; ++ ++ 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; +@@ -3096,6 +3228,11 @@ int proc_pid_readdir(struct file * filp, + { + unsigned int nr; + struct task_struct *reaper; ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ const struct cred *tmpcred = current_cred(); ++ const struct cred *itercred; ++#endif ++ filldir_t __filldir = filldir; + struct tgid_iter iter; + struct pid_namespace *ns; + +@@ -3119,8 +3256,27 @@ int proc_pid_readdir(struct file * filp, + for (iter = next_tgid(ns, iter); + iter.task; + iter.tgid += 1, iter = next_tgid(ns, iter)) { ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ rcu_read_lock(); ++ itercred = __task_cred(iter.task); ++#endif ++ if (gr_pid_is_chrooted(iter.task) || gr_check_hidden_task(iter.task) ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ || (tmpcred->uid && (itercred->uid != tmpcred->uid) ++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP ++ && !in_group_p(CONFIG_GRKERNSEC_PROC_GID) ++#endif ++ ) ++#endif ++ ) ++ __filldir = &gr_fake_filldir; ++ else ++ __filldir = filldir; ++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) ++ rcu_read_unlock(); ++#endif + filp->f_pos = iter.tgid + TGID_OFFSET; +- if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) { ++ if (proc_pid_fill_cache(filp, dirent, __filldir, iter) < 0) { + put_task_struct(iter.task); + goto out; + } +@@ -3148,7 +3304,7 @@ static const struct pid_entry tid_base_s + 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), +@@ -3172,10 +3328,10 @@ static const struct pid_entry tid_base_s + #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 -urNp linux-3.1.1/fs/proc/cmdline.c linux-3.1.1/fs/proc/cmdline.c +--- linux-3.1.1/fs/proc/cmdline.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/cmdline.c 2011-11-16 18:40:29.000000000 -0500 +@@ -23,7 +23,11 @@ static const struct file_operations cmdl + + 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 -urNp linux-3.1.1/fs/proc/devices.c linux-3.1.1/fs/proc/devices.c +--- linux-3.1.1/fs/proc/devices.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/devices.c 2011-11-16 18:40:29.000000000 -0500 +@@ -64,7 +64,11 @@ static const struct file_operations proc + + 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 -urNp linux-3.1.1/fs/proc/inode.c linux-3.1.1/fs/proc/inode.c +--- linux-3.1.1/fs/proc/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/inode.c 2011-11-16 18:40:29.000000000 -0500 +@@ -18,12 +18,18 @@ + #include <linux/module.h> + #include <linux/sysctl.h> + #include <linux/slab.h> ++#include <linux/grsecurity.h> + + #include <asm/system.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; +@@ -49,6 +55,13 @@ static void proc_evict_inode(struct inod + 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; +@@ -440,7 +453,11 @@ struct inode *proc_get_inode(struct supe + 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 -urNp linux-3.1.1/fs/proc/internal.h linux-3.1.1/fs/proc/internal.h +--- linux-3.1.1/fs/proc/internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/internal.h 2011-11-16 18:40:29.000000000 -0500 +@@ -51,6 +51,9 @@ extern int proc_pid_status(struct seq_fi + 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_maps_operations; +diff -urNp linux-3.1.1/fs/proc/Kconfig linux-3.1.1/fs/proc/Kconfig +--- linux-3.1.1/fs/proc/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/Kconfig 2011-11-16 18:40:29.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/proc/kcore.c linux-3.1.1/fs/proc/kcore.c +--- linux-3.1.1/fs/proc/kcore.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/kcore.c 2011-11-16 18:40:29.000000000 -0500 +@@ -321,6 +321,8 @@ static void elf_kcore_store_hdr(char *bu + off_t offset = 0; + struct kcore_list *m; + ++ pax_track_stack(); ++ + /* setup ELF header */ + elf = (struct elfhdr *) bufp; + bufp += sizeof(struct elfhdr); +@@ -478,9 +480,10 @@ read_kcore(struct file *file, char __use + * 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; + +@@ -509,20 +512,23 @@ read_kcore(struct file *file, char __use + 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 distingush 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; +@@ -542,6 +548,9 @@ read_kcore(struct file *file, char __use + + 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 -urNp linux-3.1.1/fs/proc/meminfo.c linux-3.1.1/fs/proc/meminfo.c +--- linux-3.1.1/fs/proc/meminfo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/meminfo.c 2011-11-16 18:40:29.000000000 -0500 +@@ -29,6 +29,8 @@ static int meminfo_proc_show(struct seq_ + unsigned long pages[NR_LRU_LISTS]; + int lru; + ++ pax_track_stack(); ++ + /* + * display in kilobytes. + */ +@@ -157,7 +159,7 @@ static int meminfo_proc_show(struct seq_ + 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 -urNp linux-3.1.1/fs/proc/nommu.c linux-3.1.1/fs/proc/nommu.c +--- linux-3.1.1/fs/proc/nommu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/nommu.c 2011-11-16 18:39:08.000000000 -0500 +@@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_ + 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 -urNp linux-3.1.1/fs/proc/proc_net.c linux-3.1.1/fs/proc/proc_net.c +--- linux-3.1.1/fs/proc/proc_net.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/proc_net.c 2011-11-16 18:40:29.000000000 -0500 +@@ -105,6 +105,17 @@ static struct net *get_proc_task_net(str + 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 -urNp linux-3.1.1/fs/proc/proc_sysctl.c linux-3.1.1/fs/proc/proc_sysctl.c +--- linux-3.1.1/fs/proc/proc_sysctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/proc_sysctl.c 2011-11-16 18:40:29.000000000 -0500 +@@ -8,11 +8,13 @@ + #include <linux/namei.h> + #include "internal.h" + ++extern __u32 gr_handle_sysctl(const struct ctl_table *table, 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; + + static struct inode *proc_sys_make_inode(struct super_block *sb, + struct ctl_table_header *head, struct ctl_table *table) +@@ -121,8 +123,14 @@ static struct dentry *proc_sys_lookup(st + + err = NULL; + d_set_d_op(dentry, &proc_sys_dentry_operations); ++ ++ gr_handle_proc_create(dentry, inode); ++ + d_add(dentry, inode); + ++ if (gr_handle_sysctl(p, MAY_EXEC)) ++ err = ERR_PTR(-ENOENT); ++ + out: + sysctl_head_finish(head); + return err; +@@ -202,6 +210,9 @@ static int proc_sys_fill_cache(struct fi + return -ENOMEM; + } else { + d_set_d_op(child, &proc_sys_dentry_operations); ++ ++ gr_handle_proc_create(child, inode); ++ + d_add(child, inode); + } + } else { +@@ -230,6 +241,9 @@ static int scan(struct ctl_table_header + if (*pos < file->f_pos) + continue; + ++ if (gr_handle_sysctl(table, 0)) ++ continue; ++ + res = proc_sys_fill_cache(file, dirent, filldir, head, table); + if (res) + return res; +@@ -355,6 +369,9 @@ static int proc_sys_getattr(struct vfsmo + if (IS_ERR(head)) + return PTR_ERR(head); + ++ if (table && gr_handle_sysctl(table, MAY_EXEC)) ++ return -ENOENT; ++ + generic_fillattr(inode, stat); + if (table) + stat->mode = (stat->mode & S_IFMT) | table->mode; +@@ -374,13 +391,13 @@ static const struct file_operations proc + .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 -urNp linux-3.1.1/fs/proc/root.c linux-3.1.1/fs/proc/root.c +--- linux-3.1.1/fs/proc/root.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/root.c 2011-11-16 18:40:29.000000000 -0500 +@@ -123,7 +123,15 @@ 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 -urNp linux-3.1.1/fs/proc/task_mmu.c linux-3.1.1/fs/proc/task_mmu.c +--- linux-3.1.1/fs/proc/task_mmu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/task_mmu.c 2011-11-16 18:40:29.000000000 -0500 +@@ -51,8 +51,13 @@ void task_mem(struct seq_file *m, struct + "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), + hiwater_rss << (PAGE_SHIFT-10), +@@ -60,7 +65,13 @@ void task_mem(struct seq_file *m, struct + 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 ++ , mm->context.user_cs_base, mm->context.user_cs_limit ++#endif ++ ++ ); + } + + unsigned long task_vsize(struct mm_struct *mm) +@@ -207,6 +218,12 @@ static int do_maps_open(struct inode *in + return ret; + } + ++#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 void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) + { + struct mm_struct *mm = vma->vm_mm; +@@ -225,13 +242,13 @@ static void show_map_vma(struct seq_file + 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, +@@ -240,7 +257,11 @@ static void show_map_vma(struct seq_file + 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); + + /* +@@ -249,7 +270,7 @@ static void show_map_vma(struct seq_file + */ + if (file) { + pad_len_spaces(m, len); +- seq_path(m, &file->f_path, "\n"); ++ seq_path(m, &file->f_path, "\n\\"); + } else { + const char *name = arch_vma_name(vma); + if (!name) { +@@ -257,8 +278,9 @@ static void show_map_vma(struct seq_file + if (vma->vm_start <= mm->brk && + vma->vm_end >= mm->start_brk) { + name = "[heap]"; +- } else if (vma->vm_start <= mm->start_stack && +- vma->vm_end >= mm->start_stack) { ++ } else if ((vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) || ++ (vma->vm_start <= mm->start_stack && ++ vma->vm_end >= mm->start_stack)) { + name = "[stack]"; + } + } else { +@@ -433,11 +455,16 @@ static int show_smap(struct seq_file *m, + }; + + 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); + + seq_printf(m, +@@ -455,7 +482,11 @@ static int show_smap(struct seq_file *m, + "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, +@@ -1031,7 +1062,7 @@ static int show_numa_map(struct seq_file + + 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 if (vma->vm_start <= mm->start_stack && +diff -urNp linux-3.1.1/fs/proc/task_nommu.c linux-3.1.1/fs/proc/task_nommu.c +--- linux-3.1.1/fs/proc/task_nommu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/proc/task_nommu.c 2011-11-16 18:39:08.000000000 -0500 +@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct + 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); +@@ -166,7 +166,7 @@ static int nommu_vma_show(struct seq_fil + + if (file) { + pad_len_spaces(m, len); +- seq_path(m, &file->f_path, ""); ++ seq_path(m, &file->f_path, "\n\\"); + } else if (mm) { + if (vma->vm_start <= mm->start_stack && + vma->vm_end >= mm->start_stack) { +diff -urNp linux-3.1.1/fs/quota/netlink.c linux-3.1.1/fs/quota/netlink.c +--- linux-3.1.1/fs/quota/netlink.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/quota/netlink.c 2011-11-16 18:39:08.000000000 -0500 +@@ -33,7 +33,7 @@ static struct genl_family quota_genl_fam + 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, unsi + "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 -urNp linux-3.1.1/fs/readdir.c linux-3.1.1/fs/readdir.c +--- linux-3.1.1/fs/readdir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/readdir.c 2011-11-16 18:40:29.000000000 -0500 +@@ -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, cons + 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 in + + 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 c + 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, + 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 + 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 + + 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 + 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 -urNp linux-3.1.1/fs/reiserfs/dir.c linux-3.1.1/fs/reiserfs/dir.c +--- linux-3.1.1/fs/reiserfs/dir.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/dir.c 2011-11-16 18:40:29.000000000 -0500 +@@ -75,6 +75,8 @@ int reiserfs_readdir_dentry(struct dentr + struct reiserfs_dir_entry de; + int ret = 0; + ++ pax_track_stack(); ++ + reiserfs_write_lock(inode->i_sb); + + reiserfs_check_lock_depth(inode->i_sb, "readdir"); +diff -urNp linux-3.1.1/fs/reiserfs/do_balan.c linux-3.1.1/fs/reiserfs/do_balan.c +--- linux-3.1.1/fs/reiserfs/do_balan.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/do_balan.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb, + 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 -urNp linux-3.1.1/fs/reiserfs/journal.c linux-3.1.1/fs/reiserfs/journal.c +--- linux-3.1.1/fs/reiserfs/journal.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/journal.c 2011-11-16 18:40:29.000000000 -0500 +@@ -2289,6 +2289,8 @@ static struct buffer_head *reiserfs_brea + struct buffer_head *bh; + int i, j; + ++ pax_track_stack(); ++ + bh = __getblk(dev, block, bufsize); + if (buffer_uptodate(bh)) + return (bh); +diff -urNp linux-3.1.1/fs/reiserfs/namei.c linux-3.1.1/fs/reiserfs/namei.c +--- linux-3.1.1/fs/reiserfs/namei.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/namei.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1225,6 +1225,8 @@ static int reiserfs_rename(struct inode + unsigned long savelink = 1; + struct timespec ctime; + ++ pax_track_stack(); ++ + /* three balancings: (1) old name removal, (2) new name insertion + and (3) maybe "save" link insertion + stat data updates: (1) old directory, +diff -urNp linux-3.1.1/fs/reiserfs/procfs.c linux-3.1.1/fs/reiserfs/procfs.c +--- linux-3.1.1/fs/reiserfs/procfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/procfs.c 2011-11-16 18:40:29.000000000 -0500 +@@ -113,7 +113,7 @@ static int show_super(struct seq_file *m + "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), +@@ -299,6 +299,8 @@ static int show_journal(struct seq_file + struct journal_params *jp = &rs->s_v1.s_journal; + char b[BDEVNAME_SIZE]; + ++ pax_track_stack(); ++ + seq_printf(m, /* on-disk fields */ + "jp_journal_1st_block: \t%i\n" + "jp_journal_dev: \t%s[%x]\n" +diff -urNp linux-3.1.1/fs/reiserfs/stree.c linux-3.1.1/fs/reiserfs/stree.c +--- linux-3.1.1/fs/reiserfs/stree.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/stree.c 2011-11-16 18:40:29.000000000 -0500 +@@ -1196,6 +1196,8 @@ int reiserfs_delete_item(struct reiserfs + int iter = 0; + #endif + ++ pax_track_stack(); ++ + BUG_ON(!th->t_trans_id); + + init_tb_struct(th, &s_del_balance, sb, path, +@@ -1333,6 +1335,8 @@ void reiserfs_delete_solid_item(struct r + int retval; + int quota_cut_bytes = 0; + ++ pax_track_stack(); ++ + BUG_ON(!th->t_trans_id); + + le_key2cpu_key(&cpu_key, key); +@@ -1562,6 +1566,8 @@ int reiserfs_cut_from_item(struct reiser + int quota_cut_bytes; + loff_t tail_pos = 0; + ++ pax_track_stack(); ++ + BUG_ON(!th->t_trans_id); + + init_tb_struct(th, &s_cut_balance, inode->i_sb, path, +@@ -1957,6 +1963,8 @@ int reiserfs_paste_into_item(struct reis + int retval; + int fs_gen; + ++ pax_track_stack(); ++ + BUG_ON(!th->t_trans_id); + + fs_gen = get_generation(inode->i_sb); +@@ -2045,6 +2053,8 @@ int reiserfs_insert_item(struct reiserfs + int fs_gen = 0; + int quota_bytes = 0; + ++ pax_track_stack(); ++ + BUG_ON(!th->t_trans_id); + + if (inode) { /* Do we count quotas for item? */ +diff -urNp linux-3.1.1/fs/reiserfs/super.c linux-3.1.1/fs/reiserfs/super.c +--- linux-3.1.1/fs/reiserfs/super.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/reiserfs/super.c 2011-11-16 18:40:29.000000000 -0500 +@@ -927,6 +927,8 @@ static int reiserfs_parse_options(struct + {.option_name = NULL} + }; + ++ pax_track_stack(); ++ + *blocks = 0; + if (!options || !*options) + /* use default configuration: create tails, journaling on, no +diff -urNp linux-3.1.1/fs/select.c linux-3.1.1/fs/select.c +--- linux-3.1.1/fs/select.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/select.c 2011-11-16 18:40:29.000000000 -0500 +@@ -20,6 +20,7 @@ + #include <linux/module.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> +@@ -403,6 +404,8 @@ int do_select(int n, fd_set_bits *fds, s + int retval, i, timed_out = 0; + unsigned long slack = 0; + ++ pax_track_stack(); ++ + rcu_read_lock(); + retval = max_select_fd(n, fds); + rcu_read_unlock(); +@@ -528,6 +531,8 @@ int core_sys_select(int n, fd_set __user + /* Allocate small arguments on the stack to save memory and be faster */ + long stack_fds[SELECT_STACK_ALLOC/sizeof(long)]; + ++ pax_track_stack(); ++ + ret = -EINVAL; + if (n < 0) + goto out_nofds; +@@ -837,6 +842,9 @@ int do_sys_poll(struct pollfd __user *uf + struct poll_list *walk = head; + unsigned long todo = nfds; + ++ pax_track_stack(); ++ ++ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1); + if (nfds > rlimit(RLIMIT_NOFILE)) + return -EINVAL; + +diff -urNp linux-3.1.1/fs/seq_file.c linux-3.1.1/fs/seq_file.c +--- linux-3.1.1/fs/seq_file.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/seq_file.c 2011-11-16 18:39:08.000000000 -0500 +@@ -76,7 +76,8 @@ static int traverse(struct seq_file *m, + return 0; + } + if (!m->buf) { +- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); ++ m->size = PAGE_SIZE; ++ m->buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!m->buf) + return -ENOMEM; + } +@@ -116,7 +117,8 @@ static int traverse(struct seq_file *m, + Eoverflow: + m->op->stop(m, p); + kfree(m->buf); +- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); ++ m->size <<= 1; ++ m->buf = kmalloc(m->size, GFP_KERNEL); + return !m->buf ? -ENOMEM : -EAGAIN; + } + +@@ -169,7 +171,8 @@ ssize_t seq_read(struct file *file, char + m->version = file->f_version; + /* grab buffer if we didn't have one */ + if (!m->buf) { +- m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); ++ m->size = PAGE_SIZE; ++ m->buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!m->buf) + goto Enomem; + } +@@ -210,7 +213,8 @@ ssize_t seq_read(struct file *file, char + goto Fill; + m->op->stop(m, p); + kfree(m->buf); +- m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); ++ m->size <<= 1; ++ m->buf = kmalloc(m->size, GFP_KERNEL); + if (!m->buf) + goto Enomem; + m->count = 0; +@@ -549,7 +553,7 @@ static void single_stop(struct seq_file + 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 -urNp linux-3.1.1/fs/splice.c linux-3.1.1/fs/splice.c +--- linux-3.1.1/fs/splice.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/splice.c 2011-11-16 18:40:29.000000000 -0500 +@@ -194,7 +194,7 @@ ssize_t splice_to_pipe(struct pipe_inode + 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 + 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); +@@ -320,6 +320,8 @@ __generic_file_splice_read(struct file * + .spd_release = spd_release_page, + }; + ++ pax_track_stack(); ++ + if (splice_grow_spd(pipe, &spd)) + return -ENOMEM; + +@@ -560,7 +562,7 @@ static ssize_t kernel_readv(struct file + 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 +577,7 @@ static ssize_t kernel_write(struct file + 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; +@@ -603,6 +605,8 @@ ssize_t default_file_splice_read(struct + .spd_release = spd_release_page, + }; + ++ pax_track_stack(); ++ + if (splice_grow_spd(pipe, &spd)) + return -ENOMEM; + +@@ -626,7 +630,7 @@ ssize_t default_file_splice_read(struct + 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++; +@@ -846,10 +850,10 @@ 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) +@@ -1182,7 +1186,7 @@ ssize_t splice_direct_to_actor(struct fi + * 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; + } +@@ -1619,6 +1623,8 @@ static long vmsplice_to_pipe(struct file + }; + long ret; + ++ pax_track_stack(); ++ + pipe = get_pipe_info(file); + if (!pipe) + return -EBADF; +@@ -1734,9 +1740,9 @@ static int ipipe_prep(struct pipe_inode_ + 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; +@@ -1768,7 +1774,7 @@ static int opipe_prep(struct pipe_inode_ + pipe_lock(pipe); + + while (pipe->nrbufs >= pipe->buffers) { +- if (!pipe->readers) { ++ if (!atomic_read(&pipe->readers)) { + send_sig(SIGPIPE, current, 0); + ret = -EPIPE; + break; +@@ -1781,9 +1787,9 @@ static int opipe_prep(struct pipe_inode_ + 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); +@@ -1819,14 +1825,14 @@ 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; + + /* +@@ -1923,7 +1929,7 @@ static int link_pipe(struct pipe_inode_i + pipe_double_lock(ipipe, opipe); + + do { +- if (!opipe->readers) { ++ if (!atomic_read(&opipe->readers)) { + send_sig(SIGPIPE, current, 0); + if (!ret) + ret = -EPIPE; +@@ -1968,7 +1974,7 @@ static int link_pipe(struct pipe_inode_i + * 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 -urNp linux-3.1.1/fs/sysfs/file.c linux-3.1.1/fs/sysfs/file.c +--- linux-3.1.1/fs/sysfs/file.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/sysfs/file.c 2011-11-16 18:39:08.000000000 -0500 +@@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent + + 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 dentr + 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 + 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 fi + + 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_di + + od = sd->s_attr.open; + if (od) { +- atomic_inc(&od->event); ++ atomic_inc_unchecked(&od->event); + wake_up_interruptible(&od->poll); + } + +diff -urNp linux-3.1.1/fs/sysfs/mount.c linux-3.1.1/fs/sysfs/mount.c +--- linux-3.1.1/fs/sysfs/mount.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/sysfs/mount.c 2011-11-16 18:40:29.000000000 -0500 +@@ -36,7 +36,11 @@ struct sysfs_dirent sysfs_root = { + .s_name = "", + .s_count = ATOMIC_INIT(1), + .s_flags = SYSFS_DIR | (KOBJ_NS_TYPE_NONE << SYSFS_NS_TYPE_SHIFT), ++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT ++ .s_mode = S_IFDIR | S_IRWXU, ++#else + .s_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO, ++#endif + .s_ino = 1, + }; + +diff -urNp linux-3.1.1/fs/sysfs/symlink.c linux-3.1.1/fs/sysfs/symlink.c +--- linux-3.1.1/fs/sysfs/symlink.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/sysfs/symlink.c 2011-11-16 18:39:08.000000000 -0500 +@@ -286,7 +286,7 @@ static void *sysfs_follow_link(struct de + + 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 -urNp linux-3.1.1/fs/udf/inode.c linux-3.1.1/fs/udf/inode.c +--- linux-3.1.1/fs/udf/inode.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/udf/inode.c 2011-11-16 18:40:29.000000000 -0500 +@@ -560,6 +560,8 @@ static struct buffer_head *inode_getblk( + int goal = 0, pgoal = iinfo->i_location.logicalBlockNum; + int lastblock = 0; + ++ pax_track_stack(); ++ + prev_epos.offset = udf_file_entry_alloc_offset(inode); + prev_epos.block = iinfo->i_location; + prev_epos.bh = NULL; +diff -urNp linux-3.1.1/fs/udf/misc.c linux-3.1.1/fs/udf/misc.c +--- linux-3.1.1/fs/udf/misc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/udf/misc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -286,7 +286,7 @@ void udf_new_tag(char *data, uint16_t id + + 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 -urNp linux-3.1.1/fs/utimes.c linux-3.1.1/fs/utimes.c +--- linux-3.1.1/fs/utimes.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/utimes.c 2011-11-16 18:40:29.000000000 -0500 +@@ -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 *pa + 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 -urNp linux-3.1.1/fs/xattr_acl.c linux-3.1.1/fs/xattr_acl.c +--- linux-3.1.1/fs/xattr_acl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xattr_acl.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/xattr.c linux-3.1.1/fs/xattr.c +--- linux-3.1.1/fs/xattr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xattr.c 2011-11-16 18:40:29.000000000 -0500 +@@ -254,7 +254,7 @@ 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; +@@ -278,7 +278,13 @@ setxattr(struct dentry *d, const char __ + return PTR_ERR(kvalue); + } + +- 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: + kfree(kvalue); + return error; + } +@@ -295,7 +301,7 @@ SYSCALL_DEFINE5(setxattr, const char __u + 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); +@@ -314,7 +320,7 @@ SYSCALL_DEFINE5(lsetxattr, const char __ + 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); +@@ -325,17 +331,15 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, cons + 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(f->f_path.mnt); + } + fput(f); +diff -urNp linux-3.1.1/fs/xfs/xfs_bmap.c linux-3.1.1/fs/xfs/xfs_bmap.c +--- linux-3.1.1/fs/xfs/xfs_bmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xfs/xfs_bmap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -250,7 +250,7 @@ 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 -urNp linux-3.1.1/fs/xfs/xfs_dir2_sf.c linux-3.1.1/fs/xfs/xfs_dir2_sf.c +--- linux-3.1.1/fs/xfs/xfs_dir2_sf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xfs/xfs_dir2_sf.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/xfs/xfs_ioctl.c linux-3.1.1/fs/xfs/xfs_ioctl.c +--- linux-3.1.1/fs/xfs/xfs_ioctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xfs/xfs_ioctl.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/fs/xfs/xfs_iops.c linux-3.1.1/fs/xfs/xfs_iops.c +--- linux-3.1.1/fs/xfs/xfs_iops.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/fs/xfs/xfs_iops.c 2011-11-16 18:39:08.000000000 -0500 +@@ -446,7 +446,7 @@ 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 -urNp linux-3.1.1/grsecurity/gracl_alloc.c linux-3.1.1/grsecurity/gracl_alloc.c +--- linux-3.1.1/grsecurity/gracl_alloc.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_alloc.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/gracl.c linux-3.1.1/grsecurity/gracl.c +--- linux-3.1.1/grsecurity/gracl.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl.c 2011-11-16 19:31:00.000000000 -0500 +@@ -0,0 +1,4156 @@ ++#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/grsecurity.h> ++#include <linux/grinternal.h> ++#include <linux/pid_namespace.h> ++#include <linux/fdtable.h> ++#include <linux/percpu.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; ++ 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 (vfsmnt->mnt_parent == vfsmnt) { ++ goto out; ++ } ++ dentry = vfsmnt->mnt_mountpoint; ++ vfsmnt = vfsmnt->mnt_parent; ++ 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_task; ++ ++ 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; ++ ++ curr = &acl_role_set.r_hash[index]; ++ ++ /* if role was already inserted due to domains and already has ++ a role in the same bucket as it attached, then we need to ++ combine these two buckets ++ */ ++ if (role->next) { ++ tmp = role->next; ++ while (tmp->next) ++ tmp = tmp->next; ++ tmp->next = *curr; ++ } else ++ role->next = *curr; ++ *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_task; ++ 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); ++ ++ /* 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; ++ 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) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ ++ for (i = 0; i < num_sprole_pws; i++) { ++ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw)); ++ if (!sptmp) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ if (copy_from_user(sptmp, arg->sprole_pws + i, ++ sizeof (struct sprole_pw))) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ ++ len = ++ strnlen_user(sptmp->rolename, GR_SPROLE_LEN); ++ ++ if (!len || len >= GR_SPROLE_LEN) { ++ err = -EINVAL; ++ goto cleanup; ++ } ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ ++ if (copy_from_user(tmp, sptmp->rolename, len)) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ 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) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ ++ if (copy_from_user(&r_utmp2, r_utmp + r_num, ++ sizeof (struct acl_role_label *))) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ ++ if (copy_from_user(r_tmp, r_utmp2, ++ sizeof (struct acl_role_label))) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ ++ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN); ++ ++ if (!len || len >= PATH_MAX) { ++ err = -EINVAL; ++ goto cleanup; ++ } ++ ++ if ((tmp = (char *) acl_alloc(len)) == NULL) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ if (copy_from_user(tmp, r_tmp->rolename, len)) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ 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) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ ++ 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) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ ++ err = copy_user_allowedips(r_tmp); ++ if (err) ++ goto cleanup; ++ ++ /* copy domain info */ ++ if (r_tmp->domain_children != NULL) { ++ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t)); ++ if (domainlist == NULL) { ++ err = -ENOMEM; ++ goto cleanup; ++ } ++ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) { ++ err = -EFAULT; ++ goto cleanup; ++ } ++ r_tmp->domain_children = domainlist; ++ } ++ ++ err = copy_user_transitions(r_tmp); ++ if (err) ++ goto cleanup; ++ ++ 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) ++ goto cleanup; ++ ++ /* set nested subject list to null */ ++ r_tmp->hash->first = NULL; ++ ++ insert_acl_role_label(r_tmp); ++ } ++ ++ goto return_err; ++ cleanup: ++ free_variables(); ++ return_err: ++ 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, ++ struct dentry *dentry, 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, (struct dentry *)orig_dentry, ++ (struct vfsmount *)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 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->mnt_parent == mnt) ++ break; ++ ++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob); ++ if (retval != NULL) ++ goto out; ++ ++ dentry = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; ++ 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 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->mnt_parent == 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 = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; ++ 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_sysctl(const char *path, 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, path, (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; ++ } ++} ++ ++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); ++ ++ /* 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_share) ++{ ++ 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); ++ ++ task_lock(task); ++ if ((((task->ptrace & PT_PTRACED) || unsafe_share) && ++ !(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)))) { ++ task_unlock(task); ++ if (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; ++ } ++ task_unlock(task); ++ ++ 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 ++ ++#ifdef CONFIG_SYSCTL ++/* Eric Biederman likes breaking userland ABI and every inode-based security ++ system to save 35kb of memory */ ++ ++/* we modify the passed in filename, but adjust it back before returning */ ++static struct acl_object_label *gr_lookup_by_name(char *name, unsigned int len) ++{ ++ struct name_entry *nmatch; ++ char *p, *lastp = NULL; ++ struct acl_object_label *obj = NULL, *tmp; ++ struct acl_subject_label *tmpsubj; ++ char c = '\0'; ++ ++ read_lock(&gr_inode_lock); ++ ++ p = name + len - 1; ++ do { ++ nmatch = lookup_name_entry(name); ++ if (lastp != NULL) ++ *lastp = c; ++ ++ if (nmatch == NULL) ++ goto next_component; ++ tmpsubj = current->acl; ++ do { ++ obj = lookup_acl_obj_label(nmatch->inode, nmatch->device, tmpsubj); ++ if (obj != NULL) { ++ tmp = obj->globbed; ++ while (tmp) { ++ if (!glob_match(tmp->filename, name)) { ++ obj = tmp; ++ goto found_obj; ++ } ++ tmp = tmp->next; ++ } ++ goto found_obj; ++ } ++ } while ((tmpsubj = tmpsubj->parent_subject)); ++next_component: ++ /* end case */ ++ if (p == name) ++ break; ++ ++ while (*p != '/') ++ p--; ++ if (p == name) ++ lastp = p + 1; ++ else { ++ lastp = p; ++ p--; ++ } ++ c = *lastp; ++ *lastp = '\0'; ++ } while (1); ++found_obj: ++ read_unlock(&gr_inode_lock); ++ /* obj returned will always be non-null */ ++ return obj; ++} ++ ++/* returns 0 when allowing, non-zero on error ++ op of 0 is used for readdir, so we don't log the names of hidden files ++*/ ++__u32 ++gr_handle_sysctl(const struct ctl_table *table, const int op) ++{ ++ struct ctl_table *tmp; ++ const char *proc_sys = "/proc/sys"; ++ char *path; ++ struct acl_object_label *obj; ++ unsigned short len = 0, pos = 0, depth = 0, i; ++ __u32 err = 0; ++ __u32 mode = 0; ++ ++ if (unlikely(!(gr_status & GR_READY))) ++ return 0; ++ ++ /* for now, ignore operations on non-sysctl entries if it's not a ++ readdir*/ ++ if (table->child != NULL && op != 0) ++ return 0; ++ ++ mode |= GR_FIND; ++ /* it's only a read if it's an entry, read on dirs is for readdir */ ++ if (op & MAY_READ) ++ mode |= GR_READ; ++ if (op & MAY_WRITE) ++ mode |= GR_WRITE; ++ ++ preempt_disable(); ++ ++ path = per_cpu_ptr(gr_shared_page[0], smp_processor_id()); ++ ++ /* it's only a read/write if it's an actual entry, not a dir ++ (which are opened for readdir) ++ */ ++ ++ /* convert the requested sysctl entry into a pathname */ ++ ++ for (tmp = (struct ctl_table *)table; tmp != NULL; tmp = tmp->parent) { ++ len += strlen(tmp->procname); ++ len++; ++ depth++; ++ } ++ ++ if ((len + depth + strlen(proc_sys) + 1) > PAGE_SIZE) { ++ /* deny */ ++ goto out; ++ } ++ ++ memset(path, 0, PAGE_SIZE); ++ ++ memcpy(path, proc_sys, strlen(proc_sys)); ++ ++ pos += strlen(proc_sys); ++ ++ for (; depth > 0; depth--) { ++ path[pos] = '/'; ++ pos++; ++ for (i = 1, tmp = (struct ctl_table *)table; tmp != NULL; tmp = tmp->parent) { ++ if (depth == i) { ++ memcpy(path + pos, tmp->procname, ++ strlen(tmp->procname)); ++ pos += strlen(tmp->procname); ++ } ++ i++; ++ } ++ } ++ ++ obj = gr_lookup_by_name(path, pos); ++ err = obj->mode & (mode | to_gr_audit(mode) | GR_SUPPRESS); ++ ++ if (unlikely((current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) && ++ ((err & mode) != mode))) { ++ __u32 new_mode = mode; ++ ++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); ++ ++ err = 0; ++ gr_log_learn_sysctl(path, new_mode); ++ } else if (!(err & GR_FIND) && !(err & GR_SUPPRESS) && op != 0) { ++ gr_log_hidden_sysctl(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, path); ++ err = -ENOENT; ++ } else if (!(err & GR_FIND)) { ++ err = -ENOENT; ++ } else if (((err & mode) & ~GR_FIND) != (mode & ~GR_FIND) && !(err & GR_SUPPRESS)) { ++ gr_log_str4(GR_DONT_AUDIT, GR_SYSCTL_ACL_MSG, "denied", ++ path, (mode & GR_READ) ? " reading" : "", ++ (mode & GR_WRITE) ? " writing" : ""); ++ err = -EACCES; ++ } else if ((err & mode) != mode) { ++ err = -EACCES; ++ } else if ((((err & mode) & ~GR_FIND) == (mode & ~GR_FIND)) && (err & GR_AUDITS)) { ++ gr_log_str4(GR_DO_AUDIT, GR_SYSCTL_ACL_MSG, "successful", ++ path, (mode & GR_READ) ? " reading" : "", ++ (mode & GR_WRITE) ? " writing" : ""); ++ err = 0; ++ } else ++ err = 0; ++ ++ out: ++ preempt_enable(); ++ ++ return err; ++} ++#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 ++ ++ 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 -urNp linux-3.1.1/grsecurity/gracl_cap.c linux-3.1.1/grsecurity/gracl_cap.c +--- linux-3.1.1/grsecurity/gracl_cap.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_cap.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,101 @@ ++#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_acl_is_capable(const int cap) ++{ ++ struct task_struct *task = current; ++ const struct cred *cred = current_cred(); ++ 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_nolog(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 = current->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; ++} ++ +diff -urNp linux-3.1.1/grsecurity/gracl_fs.c linux-3.1.1/grsecurity/gracl_fs.c +--- linux-3.1.1/grsecurity/gracl_fs.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_fs.c 2011-11-17 00:25:32.000000000 -0500 +@@ -0,0 +1,433 @@ ++#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> ++ ++__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_fchmod(const struct dentry *dentry, const struct vfsmount *mnt, ++ mode_t mode) ++{ ++ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode))) ++ return 1; ++ ++ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) { ++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, ++ GR_FCHMOD_ACL_MSG); ++ } else { ++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_FCHMOD_ACL_MSG); ++ } ++} ++ ++__u32 ++gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt, ++ mode_t mode) ++{ ++ if (unlikely((mode != (mode_t)-1) && (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 -urNp linux-3.1.1/grsecurity/gracl_ip.c linux-3.1.1/grsecurity/gracl_ip.c +--- linux-3.1.1/grsecurity/gracl_ip.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_ip.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,381 @@ ++#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) ++{ ++ 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 -urNp linux-3.1.1/grsecurity/gracl_learn.c linux-3.1.1/grsecurity/gracl_learn.c +--- linux-3.1.1/grsecurity/gracl_learn.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_learn.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/gracl_res.c linux-3.1.1/grsecurity/gracl_res.c +--- linux-3.1.1/grsecurity/gracl_res.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_res.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/gracl_segv.c linux-3.1.1/grsecurity/gracl_segv.c +--- linux-3.1.1/grsecurity/gracl_segv.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_segv.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/gracl_shm.c linux-3.1.1/grsecurity/gracl_shm.c +--- linux-3.1.1/grsecurity/gracl_shm.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/gracl_shm.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_chdir.c linux-3.1.1/grsecurity/grsec_chdir.c +--- linux-3.1.1/grsecurity/grsec_chdir.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_chdir.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_chroot.c linux-3.1.1/grsecurity/grsec_chroot.c +--- linux-3.1.1/grsecurity/grsec_chroot.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_chroot.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,351 @@ ++#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 <linux/pid_namespace.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_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_chroot_is_capable(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (grsec_enable_chroot_caps && proc_is_chrooted(current)) { ++ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; ++ if (cap_raised(chroot_caps, cap)) { ++ const struct cred *creds = current_cred(); ++ if (cap_raised(creds->cap_effective, cap) && cap < captab_log_entries) { ++ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, current, captab_log[cap]); ++ } ++ return 0; ++ } ++ } ++#endif ++ return 1; ++} ++ ++int ++gr_chroot_is_capable_nolog(const int cap) ++{ ++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS ++ if (grsec_enable_chroot_caps && proc_is_chrooted(current)) { ++ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; ++ if (cap_raised(chroot_caps, cap)) { ++ return 0; ++ } ++ } ++#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 -urNp linux-3.1.1/grsecurity/grsec_disabled.c linux-3.1.1/grsecurity/grsec_disabled.c +--- linux-3.1.1/grsecurity/grsec_disabled.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_disabled.c 2011-11-17 00:16:25.000000000 -0500 +@@ -0,0 +1,439 @@ ++#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_fchmod(const struct dentry * dentry, const struct vfsmount * mnt, ++ mode_t mode) ++{ ++ return 1; ++} ++ ++__u32 ++gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt, ++ mode_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; ++} ++ ++__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 -urNp linux-3.1.1/grsecurity/grsec_exec.c linux-3.1.1/grsecurity/grsec_exec.c +--- linux-3.1.1/grsecurity/grsec_exec.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_exec.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,146 @@ ++#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_chroot_is_capable(const int cap); ++extern int gr_chroot_is_capable_nolog(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_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 ++} ++ ++EXPORT_SYMBOL(gr_is_capable); ++EXPORT_SYMBOL(gr_is_capable_nolog); +diff -urNp linux-3.1.1/grsecurity/grsec_fifo.c linux-3.1.1/grsecurity/grsec_fifo.c +--- linux-3.1.1/grsecurity/grsec_fifo.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_fifo.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_fork.c linux-3.1.1/grsecurity/grsec_fork.c +--- linux-3.1.1/grsecurity/grsec_fork.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_fork.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_init.c linux-3.1.1/grsecurity/grsec_init.c +--- linux-3.1.1/grsecurity/grsec_init.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_init.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,269 @@ ++#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_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_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_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 -urNp linux-3.1.1/grsecurity/grsec_link.c linux-3.1.1/grsecurity/grsec_link.c +--- linux-3.1.1/grsecurity/grsec_link.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_link.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_log.c linux-3.1.1/grsecurity/grsec_log.c +--- linux-3.1.1/grsecurity/grsec_log.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_log.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_mem.c linux-3.1.1/grsecurity/grsec_mem.c +--- linux-3.1.1/grsecurity/grsec_mem.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_mem.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,33 @@ ++#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; ++} +diff -urNp linux-3.1.1/grsecurity/grsec_mount.c linux-3.1.1/grsecurity/grsec_mount.c +--- linux-3.1.1/grsecurity/grsec_mount.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_mount.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_pax.c linux-3.1.1/grsecurity/grsec_pax.c +--- linux-3.1.1/grsecurity/grsec_pax.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_pax.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_ptrace.c linux-3.1.1/grsecurity/grsec_ptrace.c +--- linux-3.1.1/grsecurity/grsec_ptrace.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_ptrace.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,14 @@ ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/grinternal.h> ++#include <linux/grsecurity.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; ++} +diff -urNp linux-3.1.1/grsecurity/grsec_sig.c linux-3.1.1/grsecurity/grsec_sig.c +--- linux-3.1.1/grsecurity/grsec_sig.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_sig.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,206 @@ ++#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 ++ if (current->pid > 1 && 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 -urNp linux-3.1.1/grsecurity/grsec_sock.c linux-3.1.1/grsecurity/grsec_sock.c +--- linux-3.1.1/grsecurity/grsec_sock.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_sock.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_sysctl.c linux-3.1.1/grsecurity/grsec_sysctl.c +--- linux-3.1.1/grsecurity/grsec_sysctl.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_sysctl.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,433 @@ ++#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 (!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_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 -urNp linux-3.1.1/grsecurity/grsec_time.c linux-3.1.1/grsecurity/grsec_time.c +--- linux-3.1.1/grsecurity/grsec_time.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_time.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/grsec_tpe.c linux-3.1.1/grsecurity/grsec_tpe.c +--- linux-3.1.1/grsecurity/grsec_tpe.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsec_tpe.c 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,39 @@ ++#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(); ++ ++ if (cred->uid && ((grsec_enable_tpe && ++#ifdef CONFIG_GRKERNSEC_TPE_INVERT ++ ((grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid)) || ++ (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))) ++#else ++ in_group_p(grsec_tpe_gid) ++#endif ++ ) || gr_acl_tpe_check()) && ++ (inode->i_uid || (!inode->i_uid && ((inode->i_mode & S_IWGRP) || ++ (inode->i_mode & S_IWOTH))))) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } ++#ifdef CONFIG_GRKERNSEC_TPE_ALL ++ if (cred->uid && grsec_enable_tpe && grsec_enable_tpe_all && ++ ((inode->i_uid && (inode->i_uid != cred->uid)) || ++ (inode->i_mode & S_IWGRP) || (inode->i_mode & S_IWOTH))) { ++ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); ++ return 0; ++ } ++#endif ++#endif ++ return 1; ++} +diff -urNp linux-3.1.1/grsecurity/grsum.c linux-3.1.1/grsecurity/grsum.c +--- linux-3.1.1/grsecurity/grsum.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/grsum.c 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/grsecurity/Kconfig linux-3.1.1/grsecurity/Kconfig +--- linux-3.1.1/grsecurity/Kconfig 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/Kconfig 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,1037 @@ ++# ++# grecurity configuration ++# ++ ++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 "Security Level" ++ depends on GRKERNSEC ++ default GRKERNSEC_CUSTOM ++ ++config GRKERNSEC_LOW ++ bool "Low" ++ select GRKERNSEC_LINK ++ select GRKERNSEC_FIFO ++ select GRKERNSEC_RANDNET ++ select GRKERNSEC_DMESG ++ select GRKERNSEC_CHROOT ++ select GRKERNSEC_CHROOT_CHDIR ++ ++ help ++ If you choose this option, several of the grsecurity options will ++ be enabled that will give you greater protection against a number ++ of attacks, while assuring that none of your software will have any ++ conflicts with the additional security measures. If you run a lot ++ of unusual software, or you are having problems with the higher ++ security levels, you should say Y here. With this option, the ++ following features are enabled: ++ ++ - Linking restrictions ++ - FIFO restrictions ++ - Restricted dmesg ++ - Enforced chdir("/") on chroot ++ - Runtime module disabling ++ ++config GRKERNSEC_MEDIUM ++ bool "Medium" ++ select PAX ++ select PAX_EI_PAX ++ select PAX_PT_PAX_FLAGS ++ select PAX_HAVE_ACL_FLAGS ++ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) ++ select GRKERNSEC_CHROOT ++ select GRKERNSEC_CHROOT_SYSCTL ++ select GRKERNSEC_LINK ++ select GRKERNSEC_FIFO ++ select GRKERNSEC_DMESG ++ select GRKERNSEC_RANDNET ++ select GRKERNSEC_FORKFAIL ++ select GRKERNSEC_TIME ++ select GRKERNSEC_SIGNAL ++ select GRKERNSEC_CHROOT ++ select GRKERNSEC_CHROOT_UNIX ++ select GRKERNSEC_CHROOT_MOUNT ++ select GRKERNSEC_CHROOT_PIVOT ++ select GRKERNSEC_CHROOT_DOUBLE ++ select GRKERNSEC_CHROOT_CHDIR ++ select GRKERNSEC_CHROOT_MKNOD ++ select GRKERNSEC_PROC ++ select GRKERNSEC_PROC_USERGROUP ++ select PAX_RANDUSTACK ++ select PAX_ASLR ++ select PAX_RANDMMAP ++ select PAX_REFCOUNT if (X86 || SPARC64) ++ select PAX_USERCOPY if ((X86 || SPARC || PPC || ARM) && (SLAB || SLUB || SLOB)) ++ ++ help ++ If you say Y here, several features in addition to those included ++ in the low additional security level will be enabled. These ++ features provide even more security to your system, though in rare ++ cases they may be incompatible with very old or poorly written ++ software. If you enable this option, make sure that your auth ++ service (identd) is running as gid 1001. With this option, ++ the following features (in addition to those provided in the ++ low additional security level) will be enabled: ++ ++ - Failed fork logging ++ - Time change logging ++ - Signal logging ++ - Deny mounts in chroot ++ - Deny double chrooting ++ - Deny sysctl writes in chroot ++ - Deny mknod in chroot ++ - Deny access to abstract AF_UNIX sockets out of chroot ++ - Deny pivot_root in chroot ++ - Denied reads/writes of /dev/kmem, /dev/mem, and /dev/port ++ - /proc restrictions with special GID set to 10 (usually wheel) ++ - Address Space Layout Randomization (ASLR) ++ - Prevent exploitation of most refcount overflows ++ - Bounds checking of copying between the kernel and userland ++ ++config GRKERNSEC_HIGH ++ bool "High" ++ select GRKERNSEC_LINK ++ select GRKERNSEC_FIFO ++ select GRKERNSEC_DMESG ++ select GRKERNSEC_FORKFAIL ++ select GRKERNSEC_TIME ++ select GRKERNSEC_SIGNAL ++ select GRKERNSEC_CHROOT ++ select GRKERNSEC_CHROOT_SHMAT ++ select GRKERNSEC_CHROOT_UNIX ++ select GRKERNSEC_CHROOT_MOUNT ++ select GRKERNSEC_CHROOT_FCHDIR ++ select GRKERNSEC_CHROOT_PIVOT ++ select GRKERNSEC_CHROOT_DOUBLE ++ select GRKERNSEC_CHROOT_CHDIR ++ select GRKERNSEC_CHROOT_MKNOD ++ select GRKERNSEC_CHROOT_CAPS ++ select GRKERNSEC_CHROOT_SYSCTL ++ select GRKERNSEC_CHROOT_FINDTASK ++ select GRKERNSEC_SYSFS_RESTRICT ++ select GRKERNSEC_PROC ++ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) ++ select GRKERNSEC_HIDESYM ++ select GRKERNSEC_BRUTE ++ select GRKERNSEC_PROC_USERGROUP ++ select GRKERNSEC_KMEM ++ select GRKERNSEC_RESLOG ++ select GRKERNSEC_RANDNET ++ select GRKERNSEC_PROC_ADD ++ select GRKERNSEC_CHROOT_CHMOD ++ select GRKERNSEC_CHROOT_NICE ++ select GRKERNSEC_AUDIT_MOUNT ++ select GRKERNSEC_MODHARDEN if (MODULES) ++ select GRKERNSEC_HARDEN_PTRACE ++ select GRKERNSEC_VM86 if (X86_32) ++ select GRKERNSEC_KERN_LOCKOUT if (X86 || ARM || PPC || SPARC) ++ select PAX ++ select PAX_RANDUSTACK ++ select PAX_ASLR ++ select PAX_RANDMMAP ++ select PAX_NOEXEC ++ select PAX_MPROTECT ++ select PAX_EI_PAX ++ select PAX_PT_PAX_FLAGS ++ select PAX_HAVE_ACL_FLAGS ++ select PAX_KERNEXEC if ((PPC || X86) && (!X86_32 || X86_WP_WORKS_OK) && !XEN) ++ select PAX_MEMORY_UDEREF if (X86 && !XEN) ++ select PAX_RANDKSTACK if (X86_TSC && X86) ++ select PAX_SEGMEXEC if (X86_32) ++ select PAX_PAGEEXEC ++ select PAX_EMUPLT if (ALPHA || PARISC || SPARC) ++ select PAX_EMUTRAMP if (PARISC) ++ select PAX_EMUSIGRT if (PARISC) ++ select PAX_ETEXECRELOCS if (ALPHA || IA64 || PARISC) ++ select PAX_ELFRELOCS if (PAX_ETEXECRELOCS || (IA64 || PPC || X86)) ++ select PAX_REFCOUNT if (X86 || SPARC64) ++ select PAX_USERCOPY if ((X86 || PPC || SPARC || ARM) && (SLAB || SLUB || SLOB)) ++ help ++ If you say Y here, many of the features of grsecurity will be ++ enabled, which will protect you against many kinds of attacks ++ against your system. The heightened security comes at a cost ++ of an increased chance of incompatibilities with rare software ++ on your machine. Since this security level enables PaX, you should ++ view <http://pax.grsecurity.net> and read about the PaX ++ project. While you are there, download chpax and run it on ++ binaries that cause problems with PaX. Also remember that ++ since the /proc restrictions are enabled, you must run your ++ identd as gid 1001. This security level enables the following ++ features in addition to those listed in the low and medium ++ security levels: ++ ++ - Additional /proc restrictions ++ - Chmod restrictions in chroot ++ - No signals, ptrace, or viewing of processes outside of chroot ++ - Capability restrictions in chroot ++ - Deny fchdir out of chroot ++ - Priority restrictions in chroot ++ - Segmentation-based implementation of PaX ++ - Mprotect restrictions ++ - Removal of addresses from /proc/<pid>/[smaps|maps|stat] ++ - Kernel stack randomization ++ - Mount/unmount/remount logging ++ - Kernel symbol hiding ++ - Hardening of module auto-loading ++ - Ptrace restrictions ++ - Restricted vm86 mode ++ - Restricted sysfs/debugfs ++ - Active kernel exploit response ++ ++config GRKERNSEC_CUSTOM ++ bool "Custom" ++ help ++ If you say Y here, you will be able to configure every grsecurity ++ option, which allows you to enable many more features that aren't ++ covered in the basic security levels. These additional features ++ include TPE, socket restrictions, and the sysctl system for ++ grsecurity. It is advised that you read through the help for ++ each option to determine its usefulness in your situation. ++ ++endchoice ++ ++menu "Address Space Protection" ++depends on GRKERNSEC ++ ++config GRKERNSEC_KMEM ++ bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port" ++ 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" ++ 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" ++ 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 "Remove addresses from /proc/<pid>/[smaps|maps|stat]" ++ default y if (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. ++ If you use PaX it is greatly recommended that you say Y here as it ++ closes up a hole that makes the full ASLR useless for suid ++ binaries. ++ ++config GRKERNSEC_BRUTE ++ bool "Deter exploit bruteforcing" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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 only ++ be accessible 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. ++ This option is equivalent to a chmod 0700 of the mount paths. ++ ++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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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' ++ 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" ++ 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" ++ 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_TPE ++ bool "Trusted Path Execution (TPE)" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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 ++ ++endmenu +diff -urNp linux-3.1.1/grsecurity/Makefile linux-3.1.1/grsecurity/Makefile +--- linux-3.1.1/grsecurity/Makefile 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/grsecurity/Makefile 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,36 @@ ++# 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 ++ ++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 -urNp linux-3.1.1/include/acpi/acpi_bus.h linux-3.1.1/include/acpi/acpi_bus.h +--- linux-3.1.1/include/acpi/acpi_bus.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/acpi/acpi_bus.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/asm-generic/atomic-long.h linux-3.1.1/include/asm-generic/atomic-long.h +--- linux-3.1.1/include/asm-generic/atomic-long.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/atomic-long.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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(atom + 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(atomi + 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(atomi + 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(atomi + 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 + 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 + 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_retur + 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_unles + + 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(atom + 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(atomi + 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(atomi + 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(atomi + 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 + 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 + 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_retur + 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_unles + + #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 -urNp linux-3.1.1/include/asm-generic/cache.h linux-3.1.1/include/asm-generic/cache.h +--- linux-3.1.1/include/asm-generic/cache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/cache.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/asm-generic/int-l64.h linux-3.1.1/include/asm-generic/int-l64.h +--- linux-3.1.1/include/asm-generic/int-l64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/int-l64.h 2011-11-16 18:39:08.000000000 -0500 +@@ -46,6 +46,8 @@ typedef unsigned int u32; + typedef signed long s64; + typedef unsigned long u64; + ++typedef unsigned int intoverflow_t __attribute__ ((mode(TI))); ++ + #define S8_C(x) x + #define U8_C(x) x ## U + #define S16_C(x) x +diff -urNp linux-3.1.1/include/asm-generic/int-ll64.h linux-3.1.1/include/asm-generic/int-ll64.h +--- linux-3.1.1/include/asm-generic/int-ll64.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/int-ll64.h 2011-11-16 18:39:08.000000000 -0500 +@@ -51,6 +51,8 @@ typedef unsigned int u32; + typedef signed long long s64; + typedef unsigned long long u64; + ++typedef unsigned long long intoverflow_t; ++ + #define S8_C(x) x + #define U8_C(x) x ## U + #define S16_C(x) x +diff -urNp linux-3.1.1/include/asm-generic/kmap_types.h linux-3.1.1/include/asm-generic/kmap_types.h +--- linux-3.1.1/include/asm-generic/kmap_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/kmap_types.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/asm-generic/pgtable.h linux-3.1.1/include/asm-generic/pgtable.h +--- linux-3.1.1/include/asm-generic/pgtable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/pgtable.h 2011-11-16 18:39:08.000000000 -0500 +@@ -443,6 +443,14 @@ static inline int pmd_write(pmd_t pmd) + #endif /* __HAVE_ARCH_PMD_WRITE */ + #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 /* !__ASSEMBLY__ */ + + #endif /* _ASM_GENERIC_PGTABLE_H */ +diff -urNp linux-3.1.1/include/asm-generic/pgtable-nopmd.h linux-3.1.1/include/asm-generic/pgtable-nopmd.h +--- linux-3.1.1/include/asm-generic/pgtable-nopmd.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/pgtable-nopmd.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/asm-generic/pgtable-nopud.h linux-3.1.1/include/asm-generic/pgtable-nopud.h +--- linux-3.1.1/include/asm-generic/pgtable-nopud.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/pgtable-nopud.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 +diff -urNp linux-3.1.1/include/asm-generic/vmlinux.lds.h linux-3.1.1/include/asm-generic/vmlinux.lds.h +--- linux-3.1.1/include/asm-generic/vmlinux.lds.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/asm-generic/vmlinux.lds.h 2011-11-16 18:39:08.000000000 -0500 +@@ -217,6 +217,7 @@ + .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) = .; \ +@@ -723,17 +724,18 @@ + * 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 -urNp linux-3.1.1/include/drm/drm_crtc_helper.h linux-3.1.1/include/drm/drm_crtc_helper.h +--- linux-3.1.1/include/drm/drm_crtc_helper.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/drm/drm_crtc_helper.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/drm/drmP.h linux-3.1.1/include/drm/drmP.h +--- linux-3.1.1/include/drm/drmP.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/drm/drmP.h 2011-11-16 18:39:08.000000000 -0500 +@@ -73,6 +73,7 @@ + #include <linux/workqueue.h> + #include <linux/poll.h> + #include <asm/pgalloc.h> ++#include <asm/local.h> + #include "drm.h" + + #include <linux/idr.h> +@@ -1035,7 +1036,7 @@ 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 */ +@@ -1046,7 +1047,7 @@ 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 -urNp linux-3.1.1/include/drm/ttm/ttm_memory.h linux-3.1.1/include/drm/ttm/ttm_memory.h +--- linux-3.1.1/include/drm/ttm/ttm_memory.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/drm/ttm/ttm_memory.h 2011-11-16 18:39:08.000000000 -0500 +@@ -47,7 +47,7 @@ + + struct ttm_mem_shrink { + int (*do_shrink) (struct ttm_mem_shrink *); +-}; ++} __no_const; + + /** + * struct ttm_mem_global - Global memory accounting structure. +diff -urNp linux-3.1.1/include/linux/a.out.h linux-3.1.1/include/linux/a.out.h +--- linux-3.1.1/include/linux/a.out.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/a.out.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/atmdev.h linux-3.1.1/include/linux/atmdev.h +--- linux-3.1.1/include/linux/atmdev.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/atmdev.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/binfmts.h linux-3.1.1/include/linux/binfmts.h +--- linux-3.1.1/include/linux/binfmts.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/binfmts.h 2011-11-16 18:39:08.000000000 -0500 +@@ -88,6 +88,7 @@ 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 -urNp linux-3.1.1/include/linux/blkdev.h linux-3.1.1/include/linux/blkdev.h +--- linux-3.1.1/include/linux/blkdev.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/blkdev.h 2011-11-16 18:39:08.000000000 -0500 +@@ -1321,7 +1321,7 @@ 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 -urNp linux-3.1.1/include/linux/blktrace_api.h linux-3.1.1/include/linux/blktrace_api.h +--- linux-3.1.1/include/linux/blktrace_api.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/blktrace_api.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/byteorder/little_endian.h linux-3.1.1/include/linux/byteorder/little_endian.h +--- linux-3.1.1/include/linux/byteorder/little_endian.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/byteorder/little_endian.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/cache.h linux-3.1.1/include/linux/cache.h +--- linux-3.1.1/include/linux/cache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/cache.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/capability.h linux-3.1.1/include/linux/capability.h +--- linux-3.1.1/include/linux/capability.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/capability.h 2011-11-16 18:40:31.000000000 -0500 +@@ -547,6 +547,9 @@ extern bool capable(int cap); + extern bool ns_capable(struct user_namespace *ns, int cap); + extern bool task_ns_capable(struct task_struct *t, int cap); + extern bool nsown_capable(int cap); ++extern bool task_ns_capable_nolog(struct task_struct *t, int cap); ++extern bool ns_capable_nolog(struct user_namespace *ns, int cap); ++extern bool capable_nolog(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 -urNp linux-3.1.1/include/linux/cleancache.h linux-3.1.1/include/linux/cleancache.h +--- linux-3.1.1/include/linux/cleancache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/cleancache.h 2011-11-16 18:39:08.000000000 -0500 +@@ -31,7 +31,7 @@ struct cleancache_ops { + void (*flush_page)(int, struct cleancache_filekey, pgoff_t); + void (*flush_inode)(int, struct cleancache_filekey); + void (*flush_fs)(int); +-}; ++} __no_const; + + extern struct cleancache_ops + cleancache_register_ops(struct cleancache_ops *ops); +diff -urNp linux-3.1.1/include/linux/compiler-gcc4.h linux-3.1.1/include/linux/compiler-gcc4.h +--- linux-3.1.1/include/linux/compiler-gcc4.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/compiler-gcc4.h 2011-11-16 18:39:08.000000000 -0500 +@@ -31,6 +31,12 @@ + + + #if __GNUC_MINOR__ >= 5 ++ ++#ifdef CONSTIFY_PLUGIN ++#define __no_const __attribute__((no_const)) ++#define __do_const __attribute__((do_const)) ++#endif ++ + /* + * Mark a position in code as unreachable. This can be used to + * suppress control flow warnings after asm blocks that transfer +@@ -46,6 +52,11 @@ + #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 -urNp linux-3.1.1/include/linux/compiler.h linux-3.1.1/include/linux/compiler.h +--- linux-3.1.1/include/linux/compiler.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/compiler.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 + # 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 +297,14 @@ void ftrace_likely_update(struct ftrace_ + # define __attribute_const__ /* unimplemented */ + #endif + ++#ifndef __no_const ++# define __no_const ++#endif ++ ++#ifndef __do_const ++# define __do_const ++#endif ++ + /* + * Tell gcc if a function is cold. The compiler will assume any path + * directly leading to the call is unlikely. +@@ -273,6 +314,22 @@ void ftrace_likely_update(struct ftrace_ + #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))) +@@ -306,6 +363,7 @@ void ftrace_likely_update(struct ftrace_ + * 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 -urNp linux-3.1.1/include/linux/cpuset.h linux-3.1.1/include/linux/cpuset.h +--- linux-3.1.1/include/linux/cpuset.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/cpuset.h 2011-11-16 18:39:08.000000000 -0500 +@@ -118,7 +118,7 @@ static inline void put_mems_allowed(void + * nodemask. + */ + smp_mb(); +- --ACCESS_ONCE(current->mems_allowed_change_disable); ++ --ACCESS_ONCE_RW(current->mems_allowed_change_disable); + } + + static inline void set_mems_allowed(nodemask_t nodemask) +diff -urNp linux-3.1.1/include/linux/crypto.h linux-3.1.1/include/linux/crypto.h +--- linux-3.1.1/include/linux/crypto.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/crypto.h 2011-11-16 18:39:08.000000000 -0500 +@@ -361,7 +361,7 @@ 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); +@@ -382,13 +382,13 @@ 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 -urNp linux-3.1.1/include/linux/decompress/mm.h linux-3.1.1/include/linux/decompress/mm.h +--- linux-3.1.1/include/linux/decompress/mm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/decompress/mm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/dma-mapping.h linux-3.1.1/include/linux/dma-mapping.h +--- linux-3.1.1/include/linux/dma-mapping.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/dma-mapping.h 2011-11-16 18:39:08.000000000 -0500 +@@ -42,7 +42,7 @@ struct dma_map_ops { + int (*dma_supported)(struct device *dev, u64 mask); + int (*set_dma_mask)(struct device *dev, u64 mask); + int is_phys; +-}; ++} __do_const; + + #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) + +diff -urNp linux-3.1.1/include/linux/efi.h linux-3.1.1/include/linux/efi.h +--- linux-3.1.1/include/linux/efi.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/efi.h 2011-11-16 18:39:08.000000000 -0500 +@@ -446,7 +446,7 @@ 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 -urNp linux-3.1.1/include/linux/elf.h linux-3.1.1/include/linux/elf.h +--- linux-3.1.1/include/linux/elf.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/elf.h 2011-11-16 18:39:08.000000000 -0500 +@@ -49,6 +49,17 @@ 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 +@@ -106,6 +117,8 @@ 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 +@@ -252,6 +265,19 @@ 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; +@@ -344,6 +370,8 @@ 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' +@@ -422,6 +450,7 @@ 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 + +@@ -432,6 +461,7 @@ 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 -urNp linux-3.1.1/include/linux/firewire.h linux-3.1.1/include/linux/firewire.h +--- linux-3.1.1/include/linux/firewire.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/firewire.h 2011-11-16 18:39:08.000000000 -0500 +@@ -428,7 +428,7 @@ struct fw_iso_context { + union { + fw_iso_callback_t sc; + fw_iso_mc_callback_t mc; +- } callback; ++ } __no_const callback; + void *callback_data; + }; + +diff -urNp linux-3.1.1/include/linux/fscache-cache.h linux-3.1.1/include/linux/fscache-cache.h +--- linux-3.1.1/include/linux/fscache-cache.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/fscache-cache.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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_ini + { + 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 -urNp linux-3.1.1/include/linux/fs.h linux-3.1.1/include/linux/fs.h +--- linux-3.1.1/include/linux/fs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/fs.h 2011-11-16 23:39:39.000000000 -0500 +@@ -1588,7 +1588,8 @@ 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 -urNp linux-3.1.1/include/linux/fsnotify.h linux-3.1.1/include/linux/fsnotify.h +--- linux-3.1.1/include/linux/fsnotify.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/fsnotify.h 2011-11-16 18:39:08.000000000 -0500 +@@ -314,7 +314,7 @@ static inline void fsnotify_change(struc + */ + 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 -urNp linux-3.1.1/include/linux/fs_struct.h linux-3.1.1/include/linux/fs_struct.h +--- linux-3.1.1/include/linux/fs_struct.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/fs_struct.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/ftrace_event.h linux-3.1.1/include/linux/ftrace_event.h +--- linux-3.1.1/include/linux/ftrace_event.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/ftrace_event.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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; +@@ -252,7 +252,7 @@ extern int trace_define_field(struct ftr + 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 -urNp linux-3.1.1/include/linux/genhd.h linux-3.1.1/include/linux/genhd.h +--- linux-3.1.1/include/linux/genhd.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/genhd.h 2011-11-16 18:39:08.000000000 -0500 +@@ -184,7 +184,7 @@ 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 -urNp linux-3.1.1/include/linux/gracl.h linux-3.1.1/include/linux/gracl.h +--- linux-3.1.1/include/linux/gracl.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/gracl.h 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,317 @@ ++#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 2.2.2" ++#define GRSECURITY_VERSION 0x2202 ++ ++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; ++ ++ 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 -urNp linux-3.1.1/include/linux/gralloc.h linux-3.1.1/include/linux/gralloc.h +--- linux-3.1.1/include/linux/gralloc.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/gralloc.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/grdefs.h linux-3.1.1/include/linux/grdefs.h +--- linux-3.1.1/include/linux/grdefs.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/grdefs.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/grinternal.h linux-3.1.1/include/linux/grinternal.h +--- linux-3.1.1/include/linux/grinternal.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/grinternal.h 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,220 @@ ++#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_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 -urNp linux-3.1.1/include/linux/grmsg.h linux-3.1.1/include/linux/grmsg.h +--- linux-3.1.1/include/linux/grmsg.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/grmsg.h 2011-11-16 18:40:31.000000000 -0500 +@@ -0,0 +1,108 @@ ++#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 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_FCHMOD_ACL_MSG "%s fchmod of %.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 garbaged 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_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by " +diff -urNp linux-3.1.1/include/linux/grsecurity.h linux-3.1.1/include/linux/grsecurity.h +--- linux-3.1.1/include/linux/grsecurity.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/grsecurity.h 2011-11-17 00:16:10.000000000 -0500 +@@ -0,0 +1,228 @@ ++#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_NOEXEC) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) ++#error "CONFIG_PAX_NOEXEC enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." ++#endif ++#if defined(CONFIG_PAX_ASLR) && (defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) ++#error "CONFIG_PAX_ASLR enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." ++#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); ++ ++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); ++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_fchmod(const struct dentry *dentry, ++ const struct vfsmount *mnt, mode_t mode); ++__u32 gr_acl_handle_chmod(const struct dentry *dentry, ++ const struct vfsmount *mnt, mode_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_share); ++__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); ++ ++#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); ++ ++extern int grsec_enable_dmesg; ++extern int grsec_disable_privio; ++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK ++extern int grsec_enable_chroot_findtask; ++#endif ++#endif ++ ++#endif +diff -urNp linux-3.1.1/include/linux/grsock.h linux-3.1.1/include/linux/grsock.h +--- linux-3.1.1/include/linux/grsock.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/grsock.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/hid.h linux-3.1.1/include/linux/hid.h +--- linux-3.1.1/include/linux/hid.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/hid.h 2011-11-16 18:39:08.000000000 -0500 +@@ -676,7 +676,7 @@ 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 -urNp linux-3.1.1/include/linux/highmem.h linux-3.1.1/include/linux/highmem.h +--- linux-3.1.1/include/linux/highmem.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/highmem.h 2011-11-16 18:39:08.000000000 -0500 +@@ -185,6 +185,18 @@ static inline void clear_highpage(struct + kunmap_atomic(kaddr, KM_USER0); + } + ++static inline void sanitize_highpage(struct page *page) ++{ ++ void *kaddr; ++ unsigned long flags; ++ ++ local_irq_save(flags); ++ kaddr = kmap_atomic(page, KM_CLEARPAGE); ++ clear_page(kaddr); ++ kunmap_atomic(kaddr, KM_CLEARPAGE); ++ local_irq_restore(flags); ++} ++ + static inline void zero_user_segments(struct page *page, + unsigned start1, unsigned end1, + unsigned start2, unsigned end2) +diff -urNp linux-3.1.1/include/linux/i2c.h linux-3.1.1/include/linux/i2c.h +--- linux-3.1.1/include/linux/i2c.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/i2c.h 2011-11-16 18:39:08.000000000 -0500 +@@ -346,6 +346,7 @@ 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 -urNp linux-3.1.1/include/linux/i2o.h linux-3.1.1/include/linux/i2o.h +--- linux-3.1.1/include/linux/i2o.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/i2o.h 2011-11-16 18:39:08.000000000 -0500 +@@ -564,7 +564,7 @@ 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 -urNp linux-3.1.1/include/linux/init.h linux-3.1.1/include/linux/init.h +--- linux-3.1.1/include/linux/init.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/init.h 2011-11-16 18:39:08.000000000 -0500 +@@ -293,13 +293,13 @@ void __init parse_early_options(char *cm + + /* 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 -urNp linux-3.1.1/include/linux/init_task.h linux-3.1.1/include/linux/init_task.h +--- linux-3.1.1/include/linux/init_task.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/init_task.h 2011-11-16 18:39:08.000000000 -0500 +@@ -126,6 +126,12 @@ extern struct cred init_cred; + # define INIT_PERF_EVENTS(tsk) + #endif + ++#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) +@@ -164,6 +170,7 @@ extern struct cred init_cred; + RCU_INIT_POINTER(.cred, &init_cred), \ + .comm = "swapper", \ + .thread = INIT_THREAD, \ ++ INIT_TASK_THREAD_INFO \ + .fs = &init_fs, \ + .files = &init_files, \ + .signal = &init_signals, \ +diff -urNp linux-3.1.1/include/linux/intel-iommu.h linux-3.1.1/include/linux/intel-iommu.h +--- linux-3.1.1/include/linux/intel-iommu.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/intel-iommu.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/interrupt.h linux-3.1.1/include/linux/interrupt.h +--- linux-3.1.1/include/linux/interrupt.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/interrupt.h 2011-11-16 18:39:08.000000000 -0500 +@@ -425,7 +425,7 @@ 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 +@@ -433,12 +433,12 @@ 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); + static inline void __raise_softirq_irqoff(unsigned int nr) + { +diff -urNp linux-3.1.1/include/linux/kallsyms.h linux-3.1.1/include/linux/kallsyms.h +--- linux-3.1.1/include/linux/kallsyms.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/kallsyms.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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(un + /* 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 void __check_printsym_format(const char *fmt, ...) +diff -urNp linux-3.1.1/include/linux/kgdb.h linux-3.1.1/include/linux/kgdb.h +--- linux-3.1.1/include/linux/kgdb.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/kgdb.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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; +@@ -251,7 +251,7 @@ 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. +@@ -276,7 +276,7 @@ struct kgdb_io { + void (*pre_exception) (void); + void (*post_exception) (void); + int is_console; +-}; ++} __do_const; + + extern struct kgdb_arch arch_kgdb_ops; + +diff -urNp linux-3.1.1/include/linux/kmod.h linux-3.1.1/include/linux/kmod.h +--- linux-3.1.1/include/linux/kmod.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/kmod.h 2011-11-16 18:40:31.000000000 -0500 +@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysc + * usually useless though. */ + extern int __request_module(bool wait, const char *name, ...) \ + __attribute__((format(printf, 2, 3))); ++extern int ___request_module(bool wait, char *param_name, const char *name, ...) \ ++ __attribute__((format(printf, 3, 4))); + #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 -urNp linux-3.1.1/include/linux/kvm_host.h linux-3.1.1/include/linux/kvm_host.h +--- linux-3.1.1/include/linux/kvm_host.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/kvm_host.h 2011-11-16 18:39:08.000000000 -0500 +@@ -308,7 +308,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vc + 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); + +@@ -454,7 +454,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug( + 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 -urNp linux-3.1.1/include/linux/libata.h linux-3.1.1/include/linux/libata.h +--- linux-3.1.1/include/linux/libata.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/libata.h 2011-11-16 18:39:08.000000000 -0500 +@@ -909,7 +909,7 @@ struct ata_port_operations { + * fields must be pointers. + */ + const struct ata_port_operations *inherits; +-}; ++} __do_const; + + struct ata_port_info { + unsigned long flags; +diff -urNp linux-3.1.1/include/linux/mca.h linux-3.1.1/include/linux/mca.h +--- linux-3.1.1/include/linux/mca.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mca.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/memory.h linux-3.1.1/include/linux/memory.h +--- linux-3.1.1/include/linux/memory.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/memory.h 2011-11-16 18:39:08.000000000 -0500 +@@ -144,7 +144,7 @@ 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 -urNp linux-3.1.1/include/linux/mfd/abx500.h linux-3.1.1/include/linux/mfd/abx500.h +--- linux-3.1.1/include/linux/mfd/abx500.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mfd/abx500.h 2011-11-16 18:39:08.000000000 -0500 +@@ -234,6 +234,7 @@ 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 -urNp linux-3.1.1/include/linux/mm.h linux-3.1.1/include/linux/mm.h +--- linux-3.1.1/include/linux/mm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -114,7 +114,14 @@ extern unsigned int kobjsize(const void + + #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 */ + +@@ -1011,34 +1018,6 @@ 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 unsigned long move_page_tables(struct vm_area_struct *vma, + unsigned long old_addr, struct vm_area_struct *new_vma, + unsigned long new_addr, unsigned long len); +@@ -1133,6 +1112,15 @@ static inline void sync_mm_rss(struct ta + } + #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, +@@ -1417,6 +1405,7 @@ out: + } + + extern int do_munmap(struct mm_struct *, unsigned long, size_t); ++extern int __do_munmap(struct mm_struct *, unsigned long, size_t); + + extern unsigned long do_brk(unsigned long, unsigned long); + +@@ -1474,6 +1463,10 @@ extern struct vm_area_struct * find_vma( + 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 +1483,6 @@ static inline unsigned long vma_pages(st + return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + } + +-#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); +@@ -1612,7 +1596,7 @@ extern int unpoison_memory(unsigned long + 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); +@@ -1626,5 +1610,11 @@ extern void copy_user_huge_page(struct p + unsigned int pages_per_huge_page); + #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */ + ++#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 -urNp linux-3.1.1/include/linux/mm_types.h linux-3.1.1/include/linux/mm_types.h +--- linux-3.1.1/include/linux/mm_types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mm_types.h 2011-11-16 18:39:08.000000000 -0500 +@@ -230,6 +230,8 @@ 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 { +@@ -362,6 +364,24 @@ 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_NOEXEC) || defined(CONFIG_PAX_ASLR) ++ 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 -urNp linux-3.1.1/include/linux/mmu_notifier.h linux-3.1.1/include/linux/mmu_notifier.h +--- linux-3.1.1/include/linux/mmu_notifier.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mmu_notifier.h 2011-11-16 18:39:08.000000000 -0500 +@@ -255,12 +255,12 @@ static inline void mmu_notifier_mm_destr + */ + #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 -urNp linux-3.1.1/include/linux/mmzone.h linux-3.1.1/include/linux/mmzone.h +--- linux-3.1.1/include/linux/mmzone.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mmzone.h 2011-11-16 18:39:08.000000000 -0500 +@@ -356,7 +356,7 @@ 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 -urNp linux-3.1.1/include/linux/mod_devicetable.h linux-3.1.1/include/linux/mod_devicetable.h +--- linux-3.1.1/include/linux/mod_devicetable.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/mod_devicetable.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/module.h linux-3.1.1/include/linux/module.h +--- linux-3.1.1/include/linux/module.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/module.h 2011-11-16 18:39:08.000000000 -0500 +@@ -16,6 +16,7 @@ + #include <linux/kobject.h> + #include <linux/moduleparam.h> + #include <linux/tracepoint.h> ++#include <linux/fs.h> + + #include <linux/percpu.h> + #include <asm/module.h> +@@ -327,19 +328,16 @@ 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; +@@ -395,6 +393,10 @@ 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; +@@ -445,16 +447,46 @@ bool is_module_address(unsigned long add + 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 -urNp linux-3.1.1/include/linux/moduleloader.h linux-3.1.1/include/linux/moduleloader.h +--- linux-3.1.1/include/linux/moduleloader.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/moduleloader.h 2011-11-16 18:39:08.000000000 -0500 +@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(st + sections. Returns NULL on failure. */ + void *module_alloc(unsigned long size); + ++#ifdef CONFIG_PAX_KERNEXEC ++void *module_alloc_exec(unsigned long size); ++#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 -urNp linux-3.1.1/include/linux/moduleparam.h linux-3.1.1/include/linux/moduleparam.h +--- linux-3.1.1/include/linux/moduleparam.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/moduleparam.h 2011-11-16 18:39:08.000000000 -0500 +@@ -255,7 +255,7 @@ static inline void __kernel_param_unlock + * @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, \ +@@ -370,7 +370,7 @@ extern int param_get_invbool(char *buffe + * module_param_named() for why this might be necessary. + */ + #define module_param_array_named(name, array, type, nump, perm) \ +- 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 -urNp linux-3.1.1/include/linux/namei.h linux-3.1.1/include/linux/namei.h +--- linux-3.1.1/include/linux/namei.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/namei.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/netdevice.h linux-3.1.1/include/linux/netdevice.h +--- linux-3.1.1/include/linux/netdevice.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/netdevice.h 2011-11-16 18:39:08.000000000 -0500 +@@ -944,6 +944,7 @@ struct net_device_ops { + int (*ndo_set_features)(struct net_device *dev, + u32 features); + }; ++typedef struct net_device_ops __no_const net_device_ops_no_const; + + /* + * The DEVICE structure. +diff -urNp linux-3.1.1/include/linux/netfilter/xt_gradm.h linux-3.1.1/include/linux/netfilter/xt_gradm.h +--- linux-3.1.1/include/linux/netfilter/xt_gradm.h 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/include/linux/netfilter/xt_gradm.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/of_pdt.h linux-3.1.1/include/linux/of_pdt.h +--- linux-3.1.1/include/linux/of_pdt.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/of_pdt.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/oprofile.h linux-3.1.1/include/linux/oprofile.h +--- linux-3.1.1/include/linux/oprofile.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/oprofile.h 2011-11-16 18:39:08.000000000 -0500 +@@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super + 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 -urNp linux-3.1.1/include/linux/padata.h linux-3.1.1/include/linux/padata.h +--- linux-3.1.1/include/linux/padata.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/padata.h 2011-11-16 18:39:08.000000000 -0500 +@@ -129,7 +129,7 @@ struct parallel_data { + struct padata_instance *pinst; + struct padata_parallel_queue __percpu *pqueue; + struct padata_serial_queue __percpu *squeue; +- atomic_t seq_nr; ++ atomic_unchecked_t seq_nr; + atomic_t reorder_objects; + atomic_t refcnt; + unsigned int max_seq_nr; +diff -urNp linux-3.1.1/include/linux/perf_event.h linux-3.1.1/include/linux/perf_event.h +--- linux-3.1.1/include/linux/perf_event.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/perf_event.h 2011-11-16 18:39:08.000000000 -0500 +@@ -745,8 +745,8 @@ 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 +@@ -797,8 +797,8 @@ 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 -urNp linux-3.1.1/include/linux/pipe_fs_i.h linux-3.1.1/include/linux/pipe_fs_i.h +--- linux-3.1.1/include/linux/pipe_fs_i.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/pipe_fs_i.h 2011-11-16 18:39:08.000000000 -0500 +@@ -46,9 +46,9 @@ 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 -urNp linux-3.1.1/include/linux/pm_runtime.h linux-3.1.1/include/linux/pm_runtime.h +--- linux-3.1.1/include/linux/pm_runtime.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/pm_runtime.h 2011-11-16 18:39:08.000000000 -0500 +@@ -99,7 +99,7 @@ static inline bool pm_runtime_callbacks_ + + 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 -urNp linux-3.1.1/include/linux/poison.h linux-3.1.1/include/linux/poison.h +--- linux-3.1.1/include/linux/poison.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/poison.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/preempt.h linux-3.1.1/include/linux/preempt.h +--- linux-3.1.1/include/linux/preempt.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/preempt.h 2011-11-16 18:39:08.000000000 -0500 +@@ -123,7 +123,7 @@ 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 -urNp linux-3.1.1/include/linux/proc_fs.h linux-3.1.1/include/linux/proc_fs.h +--- linux-3.1.1/include/linux/proc_fs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/proc_fs.h 2011-11-16 18:40:31.000000000 -0500 +@@ -155,6 +155,19 @@ static inline struct proc_dir_entry *pro + return proc_create_data(name, mode, parent, proc_fops, NULL); + } + ++static inline struct proc_dir_entry *proc_create_grsec(const char *name, mode_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, + mode_t mode, struct proc_dir_entry *base, + read_proc_t *read_proc, void * data) +@@ -258,7 +271,7 @@ 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 -urNp linux-3.1.1/include/linux/ptrace.h linux-3.1.1/include/linux/ptrace.h +--- linux-3.1.1/include/linux/ptrace.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/ptrace.h 2011-11-16 18:40:31.000000000 -0500 +@@ -129,10 +129,10 @@ extern void __ptrace_unlink(struct task_ + extern void exit_ptrace(struct task_struct *tracer); + #define PTRACE_MODE_READ 1 + #define PTRACE_MODE_ATTACH 2 +-/* Returns 0 on success, -errno on denial. */ +-extern int __ptrace_may_access(struct task_struct *task, unsigned int mode); + /* Returns true on success, false on denial. */ + extern bool ptrace_may_access(struct task_struct *task, unsigned int mode); ++/* Returns true on success, false on denial. */ ++extern bool ptrace_may_access_log(struct task_struct *task, unsigned int mode); + + static inline int ptrace_reparented(struct task_struct *child) + { +diff -urNp linux-3.1.1/include/linux/random.h linux-3.1.1/include/linux/random.h +--- linux-3.1.1/include/linux/random.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/random.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/reboot.h linux-3.1.1/include/linux/reboot.h +--- linux-3.1.1/include/linux/reboot.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/reboot.h 2011-11-16 18:39:08.000000000 -0500 +@@ -52,9 +52,9 @@ extern int unregister_reboot_notifier(st + * 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(struc + */ + + 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 -urNp linux-3.1.1/include/linux/reiserfs_fs.h linux-3.1.1/include/linux/reiserfs_fs.h +--- linux-3.1.1/include/linux/reiserfs_fs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/reiserfs_fs.h 2011-11-16 18:39:08.000000000 -0500 +@@ -1406,7 +1406,7 @@ static inline loff_t max_reiserfs_offset + #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 -urNp linux-3.1.1/include/linux/reiserfs_fs_sb.h linux-3.1.1/include/linux/reiserfs_fs_sb.h +--- linux-3.1.1/include/linux/reiserfs_fs_sb.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/reiserfs_fs_sb.h 2011-11-16 18:39:08.000000000 -0500 +@@ -386,7 +386,7 @@ 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 */ +diff -urNp linux-3.1.1/include/linux/relay.h linux-3.1.1/include/linux/relay.h +--- linux-3.1.1/include/linux/relay.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/relay.h 2011-11-16 18:39:08.000000000 -0500 +@@ -159,7 +159,7 @@ 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 -urNp linux-3.1.1/include/linux/rfkill.h linux-3.1.1/include/linux/rfkill.h +--- linux-3.1.1/include/linux/rfkill.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/rfkill.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/rmap.h linux-3.1.1/include/linux/rmap.h +--- linux-3.1.1/include/linux/rmap.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/rmap.h 2011-11-16 18:39:08.000000000 -0500 +@@ -119,8 +119,8 @@ static inline void anon_vma_unlock(struc + 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_fork(struct vm_area_struct *, struct vm_area_struct *); ++int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *); ++int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *); + void __anon_vma_link(struct vm_area_struct *); + + static inline void anon_vma_merge(struct vm_area_struct *vma, +diff -urNp linux-3.1.1/include/linux/sched.h linux-3.1.1/include/linux/sched.h +--- linux-3.1.1/include/linux/sched.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sched.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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, +@@ -380,10 +381,13 @@ 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, +@@ -629,6 +633,17 @@ 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; +@@ -710,6 +725,11 @@ 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; +@@ -1340,8 +1360,8 @@ 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; +@@ -1357,13 +1377,6 @@ 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()) +@@ -1380,8 +1393,16 @@ 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 */ +@@ -1428,6 +1449,11 @@ 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; +@@ -1537,6 +1563,21 @@ struct task_struct { + unsigned long default_timer_slack_ns; + + struct list_head *scm_work_list; ++ ++#ifdef CONFIG_GRKERNSEC ++ /* grsecurity */ ++ 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; +@@ -1571,6 +1612,57 @@ 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 NORET_TYPE void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type) ATTRIB_NORET; ++ ++#ifdef CONFIG_PAX_MEMORY_STACKLEAK ++extern void pax_track_stack(void); ++#else ++static inline void pax_track_stack(void) {} ++#endif ++ + /* Future-safe accessor for struct task_struct's cpus_allowed. */ + #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) + +@@ -2074,7 +2166,9 @@ 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)]; + }; + +@@ -2107,6 +2201,7 @@ 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); + +@@ -2243,7 +2338,7 @@ extern void __cleanup_sighand(struct sig + extern void exit_itimers(struct signal_struct *); + extern void flush_itimer_signals(void); + +-extern NORET_TYPE void do_group_exit(int); ++extern NORET_TYPE void do_group_exit(int) ATTRIB_NORET; + + extern void daemonize(const char *, ...); + extern int allow_signal(int); +@@ -2408,13 +2503,17 @@ static inline unsigned long *end_of_stac + + #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 -urNp linux-3.1.1/include/linux/screen_info.h linux-3.1.1/include/linux/screen_info.h +--- linux-3.1.1/include/linux/screen_info.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/screen_info.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/security.h linux-3.1.1/include/linux/security.h +--- linux-3.1.1/include/linux/security.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/security.h 2011-11-16 18:40:31.000000000 -0500 +@@ -36,6 +36,7 @@ + #include <linux/key.h> + #include <linux/xfrm.h> + #include <linux/slab.h> ++#include <linux/grsecurity.h> + #include <net/flow.h> + + /* Maximum number of letters for an LSM name string */ +diff -urNp linux-3.1.1/include/linux/seq_file.h linux-3.1.1/include/linux/seq_file.h +--- linux-3.1.1/include/linux/seq_file.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/seq_file.h 2011-11-16 18:39:08.000000000 -0500 +@@ -33,6 +33,7 @@ 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 -urNp linux-3.1.1/include/linux/shm.h linux-3.1.1/include/linux/shm.h +--- linux-3.1.1/include/linux/shm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/shm.h 2011-11-16 18:59:58.000000000 -0500 +@@ -98,6 +98,10 @@ struct shmid_kernel /* private to the ke + + /* 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 -urNp linux-3.1.1/include/linux/skbuff.h linux-3.1.1/include/linux/skbuff.h +--- linux-3.1.1/include/linux/skbuff.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/skbuff.h 2011-11-16 18:39:08.000000000 -0500 +@@ -610,7 +610,7 @@ static inline struct skb_shared_hwtstamp + */ + 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; + } + + /** +@@ -623,7 +623,7 @@ static inline int skb_queue_empty(const + 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; + } + + /** +@@ -636,7 +636,7 @@ static inline bool skb_queue_is_last(con + 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; + } + + /** +@@ -1458,7 +1458,7 @@ static inline int pskb_network_may_pull( + * 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 -urNp linux-3.1.1/include/linux/slab_def.h linux-3.1.1/include/linux/slab_def.h +--- linux-3.1.1/include/linux/slab_def.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/slab_def.h 2011-11-16 18:39:08.000000000 -0500 +@@ -68,10 +68,10 @@ 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 +diff -urNp linux-3.1.1/include/linux/slab.h linux-3.1.1/include/linux/slab.h +--- linux-3.1.1/include/linux/slab.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/slab.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 + 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 +@@ -353,4 +365,59 @@ static inline void *kzalloc_node(size_t + + void __init kmem_cache_init_late(void); + ++#define kmalloc(x, y) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "kmalloc size overflow\n")) \ ++ ___retval = NULL; \ ++ else \ ++ ___retval = kmalloc((size_t)___x, (y)); \ ++ ___retval; \ ++}) ++ ++#define kmalloc_node(x, y, z) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "kmalloc_node size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = kmalloc_node((size_t)___x, (y), (z));\ ++ ___retval; \ ++}) ++ ++#define kzalloc(x, y) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "kzalloc size overflow\n")) \ ++ ___retval = NULL; \ ++ else \ ++ ___retval = kzalloc((size_t)___x, (y)); \ ++ ___retval; \ ++}) ++ ++#define __krealloc(x, y, z) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___y = (intoverflow_t)y; \ ++ if (WARN(___y > ULONG_MAX, "__krealloc size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = __krealloc((x), (size_t)___y, (z)); \ ++ ___retval; \ ++}) ++ ++#define krealloc(x, y, z) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___y = (intoverflow_t)y; \ ++ if (WARN(___y > ULONG_MAX, "krealloc size overflow\n")) \ ++ ___retval = NULL; \ ++ else \ ++ ___retval = krealloc((x), (size_t)___y, (z)); \ ++ ___retval; \ ++}) ++ + #endif /* _LINUX_SLAB_H */ +diff -urNp linux-3.1.1/include/linux/slub_def.h linux-3.1.1/include/linux/slub_def.h +--- linux-3.1.1/include/linux/slub_def.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/slub_def.h 2011-11-16 18:39:08.000000000 -0500 +@@ -85,7 +85,7 @@ 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 */ +@@ -211,7 +211,7 @@ static __always_inline struct kmem_cache + } + + 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); + + static __always_inline void * + kmalloc_order(size_t size, gfp_t flags, unsigned int order) +diff -urNp linux-3.1.1/include/linux/sonet.h linux-3.1.1/include/linux/sonet.h +--- linux-3.1.1/include/linux/sonet.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sonet.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/sunrpc/clnt.h linux-3.1.1/include/linux/sunrpc/clnt.h +--- linux-3.1.1/include/linux/sunrpc/clnt.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sunrpc/clnt.h 2011-11-16 18:39:08.000000000 -0500 +@@ -169,9 +169,9 @@ static inline unsigned short rpc_get_por + { + 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; + } +@@ -204,7 +204,7 @@ static inline bool __rpc_cmp_addr4(const + 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; +@@ -301,7 +301,7 @@ static inline u32 rpc_get_scope_id(const + 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 -urNp linux-3.1.1/include/linux/sunrpc/sched.h linux-3.1.1/include/linux/sunrpc/sched.h +--- linux-3.1.1/include/linux/sunrpc/sched.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sunrpc/sched.h 2011-11-16 18:39:08.000000000 -0500 +@@ -105,6 +105,7 @@ struct rpc_call_ops { + void (*rpc_call_done)(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 -urNp linux-3.1.1/include/linux/sunrpc/svc_rdma.h linux-3.1.1/include/linux/sunrpc/svc_rdma.h +--- linux-3.1.1/include/linux/sunrpc/svc_rdma.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sunrpc/svc_rdma.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/sysctl.h linux-3.1.1/include/linux/sysctl.h +--- linux-3.1.1/include/linux/sysctl.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/sysctl.h 2011-11-16 18:40:31.000000000 -0500 +@@ -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 +@@ -967,6 +971,8 @@ typedef int proc_handler (struct ctl_tab + + 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 -urNp linux-3.1.1/include/linux/tty_ldisc.h linux-3.1.1/include/linux/tty_ldisc.h +--- linux-3.1.1/include/linux/tty_ldisc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/tty_ldisc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -148,7 +148,7 @@ struct tty_ldisc_ops { + + struct module *owner; + +- int refcount; ++ atomic_t refcount; + }; + + struct tty_ldisc { +diff -urNp linux-3.1.1/include/linux/types.h linux-3.1.1/include/linux/types.h +--- linux-3.1.1/include/linux/types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/types.h 2011-11-16 18:39:08.000000000 -0500 +@@ -213,10 +213,26 @@ 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 -urNp linux-3.1.1/include/linux/uaccess.h linux-3.1.1/include/linux/uaccess.h +--- linux-3.1.1/include/linux/uaccess.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/uaccess.h 2011-11-16 18:39:08.000000000 -0500 +@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_ + 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 -urNp linux-3.1.1/include/linux/unaligned/access_ok.h linux-3.1.1/include/linux/unaligned/access_ok.h +--- linux-3.1.1/include/linux/unaligned/access_ok.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/unaligned/access_ok.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/linux/vermagic.h linux-3.1.1/include/linux/vermagic.h +--- linux-3.1.1/include/linux/vermagic.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/vermagic.h 2011-11-16 18:54:54.000000000 -0500 +@@ -26,9 +26,35 @@ + #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 -urNp linux-3.1.1/include/linux/vmalloc.h linux-3.1.1/include/linux/vmalloc.h +--- linux-3.1.1/include/linux/vmalloc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/vmalloc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -14,6 +14,11 @@ struct vm_area_struct; /* vma defining + #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 */ + + /* +@@ -156,4 +161,103 @@ pcpu_free_vm_areas(struct vm_struct **vm + # endif + #endif + ++#define vmalloc(x) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc size overflow\n")) \ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc((unsigned long)___x); \ ++ ___retval; \ ++}) ++ ++#define vzalloc(x) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vzalloc size overflow\n")) \ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vzalloc((unsigned long)___x); \ ++ ___retval; \ ++}) ++ ++#define __vmalloc(x, y, z) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "__vmalloc size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = __vmalloc((unsigned long)___x, (y), (z));\ ++ ___retval; \ ++}) ++ ++#define vmalloc_user(x) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc_user size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc_user((unsigned long)___x); \ ++ ___retval; \ ++}) ++ ++#define vmalloc_exec(x) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc_exec size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc_exec((unsigned long)___x); \ ++ ___retval; \ ++}) ++ ++#define vmalloc_node(x, y) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc_node size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc_node((unsigned long)___x, (y));\ ++ ___retval; \ ++}) ++ ++#define vzalloc_node(x, y) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vzalloc_node size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vzalloc_node((unsigned long)___x, (y));\ ++ ___retval; \ ++}) ++ ++#define vmalloc_32(x) \ ++({ \ ++ void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc_32 size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc_32((unsigned long)___x); \ ++ ___retval; \ ++}) ++ ++#define vmalloc_32_user(x) \ ++({ \ ++void *___retval; \ ++ intoverflow_t ___x = (intoverflow_t)x; \ ++ if (WARN(___x > ULONG_MAX, "vmalloc_32_user size overflow\n"))\ ++ ___retval = NULL; \ ++ else \ ++ ___retval = vmalloc_32_user((unsigned long)___x);\ ++ ___retval; \ ++}) ++ + #endif /* _LINUX_VMALLOC_H */ +diff -urNp linux-3.1.1/include/linux/vmstat.h linux-3.1.1/include/linux/vmstat.h +--- linux-3.1.1/include/linux/vmstat.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/linux/vmstat.h 2011-11-16 18:39:08.000000000 -0500 +@@ -87,18 +87,18 @@ static inline void vm_events_fold_cpu(in + /* + * 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_ + 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_st + 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 + + 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 + + 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 -urNp linux-3.1.1/include/media/saa7146_vv.h linux-3.1.1/include/media/saa7146_vv.h +--- linux-3.1.1/include/media/saa7146_vv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/media/saa7146_vv.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/media/v4l2-dev.h linux-3.1.1/include/media/v4l2-dev.h +--- linux-3.1.1/include/media/v4l2-dev.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/media/v4l2-dev.h 2011-11-16 18:39:08.000000000 -0500 +@@ -56,7 +56,7 @@ int v4l2_prio_check(struct v4l2_prio_sta + + + 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 *); +@@ -68,6 +68,7 @@ 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 -urNp linux-3.1.1/include/media/v4l2-ioctl.h linux-3.1.1/include/media/v4l2-ioctl.h +--- linux-3.1.1/include/media/v4l2-ioctl.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/media/v4l2-ioctl.h 2011-11-17 18:44:20.000000000 -0500 +@@ -272,7 +272,7 @@ 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 -urNp linux-3.1.1/include/net/caif/caif_hsi.h linux-3.1.1/include/net/caif/caif_hsi.h +--- linux-3.1.1/include/net/caif/caif_hsi.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/caif/caif_hsi.h 2011-11-16 18:39:08.000000000 -0500 +@@ -94,7 +94,7 @@ 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 -urNp linux-3.1.1/include/net/caif/cfctrl.h linux-3.1.1/include/net/caif/cfctrl.h +--- linux-3.1.1/include/net/caif/cfctrl.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/caif/cfctrl.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/net/flow.h linux-3.1.1/include/net/flow.h +--- linux-3.1.1/include/net/flow.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/flow.h 2011-11-16 18:39:08.000000000 -0500 +@@ -207,6 +207,6 @@ extern struct flow_cache_object *flow_ca + u8 dir, flow_resolve_t resolver, void *ctx); + + extern void flow_cache_flush(void); +-extern atomic_t flow_cache_genid; ++extern atomic_unchecked_t flow_cache_genid; + + #endif +diff -urNp linux-3.1.1/include/net/inetpeer.h linux-3.1.1/include/net/inetpeer.h +--- linux-3.1.1/include/net/inetpeer.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/inetpeer.h 2011-11-16 18:39:08.000000000 -0500 +@@ -47,8 +47,8 @@ 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; + }; +@@ -112,11 +112,11 @@ static inline int inet_getid(struct inet + 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 -urNp linux-3.1.1/include/net/ip_fib.h linux-3.1.1/include/net/ip_fib.h +--- linux-3.1.1/include/net/ip_fib.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/ip_fib.h 2011-11-16 18:39:08.000000000 -0500 +@@ -146,7 +146,7 @@ extern __be32 fib_info_update_nh_saddr(s + + #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 -urNp linux-3.1.1/include/net/ip_vs.h linux-3.1.1/include/net/ip_vs.h +--- linux-3.1.1/include/net/ip_vs.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/ip_vs.h 2011-11-16 18:39:08.000000000 -0500 +@@ -509,7 +509,7 @@ 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, +@@ -647,7 +647,7 @@ 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 -urNp linux-3.1.1/include/net/irda/ircomm_core.h linux-3.1.1/include/net/irda/ircomm_core.h +--- linux-3.1.1/include/net/irda/ircomm_core.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/irda/ircomm_core.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/net/irda/ircomm_tty.h linux-3.1.1/include/net/irda/ircomm_tty.h +--- linux-3.1.1/include/net/irda/ircomm_tty.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/irda/ircomm_tty.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/net/iucv/af_iucv.h linux-3.1.1/include/net/iucv/af_iucv.h +--- linux-3.1.1/include/net/iucv/af_iucv.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/iucv/af_iucv.h 2011-11-16 18:39:08.000000000 -0500 +@@ -87,7 +87,7 @@ 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 -urNp linux-3.1.1/include/net/lapb.h linux-3.1.1/include/net/lapb.h +--- linux-3.1.1/include/net/lapb.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/lapb.h 2011-11-16 18:39:08.000000000 -0500 +@@ -95,7 +95,7 @@ struct lapb_cb { + struct sk_buff_head write_queue; + struct sk_buff_head ack_queue; + unsigned char window; +- struct lapb_register_struct callbacks; ++ struct lapb_register_struct *callbacks; + + /* FRMR control information */ + struct lapb_frame frmr_data; +diff -urNp linux-3.1.1/include/net/neighbour.h linux-3.1.1/include/net/neighbour.h +--- linux-3.1.1/include/net/neighbour.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/neighbour.h 2011-11-16 18:39:08.000000000 -0500 +@@ -122,7 +122,7 @@ 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 -urNp linux-3.1.1/include/net/netlink.h linux-3.1.1/include/net/netlink.h +--- linux-3.1.1/include/net/netlink.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/netlink.h 2011-11-16 18:39:08.000000000 -0500 +@@ -562,7 +562,7 @@ static inline void *nlmsg_get_pos(struct + 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 -urNp linux-3.1.1/include/net/netns/ipv4.h linux-3.1.1/include/net/netns/ipv4.h +--- linux-3.1.1/include/net/netns/ipv4.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/netns/ipv4.h 2011-11-16 18:39:08.000000000 -0500 +@@ -56,8 +56,8 @@ struct netns_ipv4 { + + unsigned int sysctl_ping_group_range[2]; + +- 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 -urNp linux-3.1.1/include/net/sctp/sctp.h linux-3.1.1/include/net/sctp/sctp.h +--- linux-3.1.1/include/net/sctp/sctp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/sctp/sctp.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/net/sock.h linux-3.1.1/include/net/sock.h +--- linux-3.1.1/include/net/sock.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/sock.h 2011-11-16 18:39:08.000000000 -0500 +@@ -278,7 +278,7 @@ 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; +@@ -1391,7 +1391,7 @@ static inline void sk_nocaps_add(struct + } + + 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 -urNp linux-3.1.1/include/net/tcp.h linux-3.1.1/include/net/tcp.h +--- linux-3.1.1/include/net/tcp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/tcp.h 2011-11-16 18:39:08.000000000 -0500 +@@ -1401,8 +1401,8 @@ enum tcp_seq_states { + struct tcp_seq_afinfo { + char *name; + sa_family_t family; +- struct file_operations seq_fops; +- struct seq_operations seq_ops; ++ file_operations_no_const seq_fops; ++ seq_operations_no_const seq_ops; + }; + + struct tcp_iter_state { +diff -urNp linux-3.1.1/include/net/udp.h linux-3.1.1/include/net/udp.h +--- linux-3.1.1/include/net/udp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/udp.h 2011-11-16 18:39:08.000000000 -0500 +@@ -234,8 +234,8 @@ struct udp_seq_afinfo { + char *name; + sa_family_t family; + struct udp_table *udp_table; +- struct file_operations seq_fops; +- struct seq_operations seq_ops; ++ file_operations_no_const seq_fops; ++ seq_operations_no_const seq_ops; + }; + + struct udp_iter_state { +diff -urNp linux-3.1.1/include/net/xfrm.h linux-3.1.1/include/net/xfrm.h +--- linux-3.1.1/include/net/xfrm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/net/xfrm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/rdma/iw_cm.h linux-3.1.1/include/rdma/iw_cm.h +--- linux-3.1.1/include/rdma/iw_cm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/rdma/iw_cm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -120,7 +120,7 @@ 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 -urNp linux-3.1.1/include/scsi/libfc.h linux-3.1.1/include/scsi/libfc.h +--- linux-3.1.1/include/scsi/libfc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/scsi/libfc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -758,6 +758,7 @@ 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 -urNp linux-3.1.1/include/scsi/scsi_device.h linux-3.1.1/include/scsi/scsi_device.h +--- linux-3.1.1/include/scsi/scsi_device.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/scsi/scsi_device.h 2011-11-16 18:39:08.000000000 -0500 +@@ -161,9 +161,9 @@ 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 -urNp linux-3.1.1/include/scsi/scsi_transport_fc.h linux-3.1.1/include/scsi/scsi_transport_fc.h +--- linux-3.1.1/include/scsi/scsi_transport_fc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/scsi/scsi_transport_fc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -711,7 +711,7 @@ struct fc_function_template { + unsigned long show_host_system_hostname:1; + + unsigned long disable_target_scan:1; +-}; ++} __do_const; + + + /** +diff -urNp linux-3.1.1/include/sound/ak4xxx-adda.h linux-3.1.1/include/sound/ak4xxx-adda.h +--- linux-3.1.1/include/sound/ak4xxx-adda.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/ak4xxx-adda.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/sound/hwdep.h linux-3.1.1/include/sound/hwdep.h +--- linux-3.1.1/include/sound/hwdep.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/hwdep.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/sound/info.h linux-3.1.1/include/sound/info.h +--- linux-3.1.1/include/sound/info.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/info.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/sound/pcm.h linux-3.1.1/include/sound/pcm.h +--- linux-3.1.1/include/sound/pcm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/pcm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/sound/sb16_csp.h linux-3.1.1/include/sound/sb16_csp.h +--- linux-3.1.1/include/sound/sb16_csp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/sb16_csp.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/sound/soc.h linux-3.1.1/include/sound/soc.h +--- linux-3.1.1/include/sound/soc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/soc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -676,7 +676,7 @@ 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; +diff -urNp linux-3.1.1/include/sound/ymfpci.h linux-3.1.1/include/sound/ymfpci.h +--- linux-3.1.1/include/sound/ymfpci.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/sound/ymfpci.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/target/target_core_base.h linux-3.1.1/include/target/target_core_base.h +--- linux-3.1.1/include/target/target_core_base.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/target/target_core_base.h 2011-11-16 18:39:08.000000000 -0500 +@@ -356,7 +356,7 @@ 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 */ +@@ -496,8 +496,8 @@ struct se_cmd { + atomic_t t_task_cdbs_left; + atomic_t t_task_cdbs_ex_left; + atomic_t t_task_cdbs_timeout_left; +- atomic_t t_task_cdbs_sent; +- atomic_t t_transport_aborted; ++ atomic_unchecked_t t_task_cdbs_sent; ++ atomic_unchecked_t t_transport_aborted; + atomic_t t_transport_active; + atomic_t t_transport_complete; + atomic_t t_transport_queue_active; +@@ -744,7 +744,7 @@ struct se_device { + atomic_t active_cmds; + atomic_t simple_cmds; + atomic_t depth_left; +- atomic_t dev_ordered_id; ++ atomic_unchecked_t dev_ordered_id; + atomic_t dev_tur_active; + atomic_t execute_tasks; + atomic_t dev_status_thr_count; +diff -urNp linux-3.1.1/include/trace/events/irq.h linux-3.1.1/include/trace/events/irq.h +--- linux-3.1.1/include/trace/events/irq.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/trace/events/irq.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/include/video/udlfb.h linux-3.1.1/include/video/udlfb.h +--- linux-3.1.1/include/video/udlfb.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/video/udlfb.h 2011-11-16 18:39:08.000000000 -0500 +@@ -51,10 +51,10 @@ struct dlfb_data { + int base8; + u32 pseudo_palette[256]; + /* 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 -urNp linux-3.1.1/include/video/uvesafb.h linux-3.1.1/include/video/uvesafb.h +--- linux-3.1.1/include/video/uvesafb.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/include/video/uvesafb.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/init/do_mounts.c linux-3.1.1/init/do_mounts.c +--- linux-3.1.1/init/do_mounts.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/do_mounts.c 2011-11-16 18:39:08.000000000 -0500 +@@ -287,11 +287,11 @@ static void __init get_fs_names(char *pa + + static int __init do_mount_root(char *name, char *fs, int flags, void *data) + { +- 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"); + ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev; + printk(KERN_INFO + "VFS: Mounted root (%s filesystem)%s on device %u:%u.\n", +@@ -383,18 +383,18 @@ 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); +@@ -488,6 +488,6 @@ 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 -urNp linux-3.1.1/init/do_mounts.h linux-3.1.1/init/do_mounts.h +--- linux-3.1.1/init/do_mounts.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/do_mounts.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/init/do_mounts_initrd.c linux-3.1.1/init/do_mounts_initrd.c +--- linux-3.1.1/init/do_mounts_initrd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/do_mounts_initrd.c 2011-11-16 18:39:08.000000000 -0500 +@@ -44,13 +44,13 @@ 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 +@@ -67,15 +67,15 @@ 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; + } + +@@ -83,17 +83,17 @@ 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; +@@ -116,11 +116,11 @@ 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 -urNp linux-3.1.1/init/do_mounts_md.c linux-3.1.1/init/do_mounts_md.c +--- linux-3.1.1/init/do_mounts_md.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/do_mounts_md.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/init/initramfs.c linux-3.1.1/init/initramfs.c +--- linux-3.1.1/init/initramfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/initramfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 + { + 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 -urNp linux-3.1.1/init/Kconfig linux-3.1.1/init/Kconfig +--- linux-3.1.1/init/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/Kconfig 2011-11-16 18:39:08.000000000 -0500 +@@ -1202,7 +1202,7 @@ 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 -urNp linux-3.1.1/init/main.c linux-3.1.1/init/main.c +--- linux-3.1.1/init/main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/init/main.c 2011-11-16 18:40:44.000000000 -0500 +@@ -96,6 +96,8 @@ 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 +@@ -149,6 +151,49 @@ static int __init set_reset_devices(char + + __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_CPUS; 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; +@@ -678,6 +723,7 @@ int __init_or_module do_one_initcall(ini + { + int count = preempt_count(); + int ret; ++ const char *msg1 = "", *msg2 = ""; + + if (initcall_debug) + ret = do_one_initcall_debug(fn); +@@ -690,15 +736,15 @@ int __init_or_module do_one_initcall(ini + 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; +@@ -817,7 +863,7 @@ static int __init kernel_init(void * unu + 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); +@@ -830,11 +876,13 @@ static int __init kernel_init(void * unu + 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 -urNp linux-3.1.1/ipc/mqueue.c linux-3.1.1/ipc/mqueue.c +--- linux-3.1.1/ipc/mqueue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/ipc/mqueue.c 2011-11-16 18:40:44.000000000 -0500 +@@ -156,6 +156,7 @@ static struct inode *mqueue_get_inode(st + 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 > task_rlimit(p, RLIMIT_MSGQUEUE)) { +diff -urNp linux-3.1.1/ipc/msg.c linux-3.1.1/ipc/msg.c +--- linux-3.1.1/ipc/msg.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/ipc/msg.c 2011-11-16 18:39:08.000000000 -0500 +@@ -309,18 +309,19 @@ static inline int msg_security(struct ke + 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 -urNp linux-3.1.1/ipc/sem.c linux-3.1.1/ipc/sem.c +--- linux-3.1.1/ipc/sem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/ipc/sem.c 2011-11-16 18:40:44.000000000 -0500 +@@ -318,10 +318,15 @@ static inline int sem_more_checks(struct + 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; +@@ -329,10 +334,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, + 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; +@@ -848,6 +849,8 @@ static int semctl_main(struct ipc_namesp + int nsems; + struct list_head tasks; + ++ pax_track_stack(); ++ + sma = sem_lock_check(ns, semid); + if (IS_ERR(sma)) + return PTR_ERR(sma); +@@ -1295,6 +1298,8 @@ SYSCALL_DEFINE4(semtimedop, int, semid, + struct ipc_namespace *ns; + struct list_head tasks; + ++ pax_track_stack(); ++ + ns = current->nsproxy->ipc_ns; + + if (nsops < 1 || semid < 0) +diff -urNp linux-3.1.1/ipc/shm.c linux-3.1.1/ipc/shm.c +--- linux-3.1.1/ipc/shm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/ipc/shm.c 2011-11-16 18:40:44.000000000 -0500 +@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_name + 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 * + 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 + 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; +@@ -870,8 +887,6 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, + case SHM_LOCK: + case SHM_UNLOCK: + { +- struct file *uninitialized_var(shm_file); +- + lru_add_drain_all(); /* drain pagevecs to lru lists */ + + shp = shm_lock_check(ns, shmid); +@@ -1004,9 +1019,21 @@ long do_shmat(int shmid, char __user *sh + 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 -urNp linux-3.1.1/kernel/acct.c linux-3.1.1/kernel/acct.c +--- linux-3.1.1/kernel/acct.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/acct.c 2011-11-16 18:39:08.000000000 -0500 +@@ -570,7 +570,7 @@ static void do_acct_process(struct bsd_a + */ + 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 -urNp linux-3.1.1/kernel/audit.c linux-3.1.1/kernel/audit.c +--- linux-3.1.1/kernel/audit.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/audit.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_b + 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 -urNp linux-3.1.1/kernel/auditsc.c linux-3.1.1/kernel/auditsc.c +--- linux-3.1.1/kernel/auditsc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/auditsc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2118,7 +2118,7 @@ int auditsc_get_stamp(struct audit_conte + } + + /* 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 a task's audit_context loginuid +@@ -2131,7 +2131,7 @@ static atomic_t session_id = ATOMIC_INIT + */ + int audit_set_loginuid(struct task_struct *task, uid_t loginuid) + { +- unsigned int sessionid = atomic_inc_return(&session_id); ++ unsigned int sessionid = atomic_inc_return_unchecked(&session_id); + struct audit_context *context = task->audit_context; + + if (context && context->in_syscall) { +diff -urNp linux-3.1.1/kernel/capability.c linux-3.1.1/kernel/capability.c +--- linux-3.1.1/kernel/capability.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/capability.c 2011-11-16 18:40:44.000000000 -0500 +@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_ + * 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; +@@ -374,7 +377,7 @@ bool ns_capable(struct user_namespace *n + BUG(); + } + +- if (security_capable(ns, current_cred(), cap) == 0) { ++ if (security_capable(ns, current_cred(), cap) == 0 && gr_is_capable(cap)) { + current->flags |= PF_SUPERPRIV; + return true; + } +@@ -382,6 +385,27 @@ bool ns_capable(struct user_namespace *n + } + 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(ns, current_cred(), cap) == 0 && gr_is_capable_nolog(cap)) { ++ current->flags |= PF_SUPERPRIV; ++ return true; ++ } ++ return false; ++} ++EXPORT_SYMBOL(ns_capable_nolog); ++ ++bool capable_nolog(int cap) ++{ ++ return ns_capable_nolog(&init_user_ns, cap); ++} ++EXPORT_SYMBOL(capable_nolog); ++ + /** + * task_ns_capable - Determine whether current task has a superior + * capability targeted at a specific task's user namespace. +@@ -396,6 +420,12 @@ bool task_ns_capable(struct task_struct + } + EXPORT_SYMBOL(task_ns_capable); + ++bool task_ns_capable_nolog(struct task_struct *t, int cap) ++{ ++ return ns_capable_nolog(task_cred_xxx(t, user)->user_ns, cap); ++} ++EXPORT_SYMBOL(task_ns_capable_nolog); ++ + /** + * nsown_capable - Check superior capability to one's own user_ns + * @cap: The capability in question +diff -urNp linux-3.1.1/kernel/cgroup.c linux-3.1.1/kernel/cgroup.c +--- linux-3.1.1/kernel/cgroup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/cgroup.c 2011-11-16 18:40:44.000000000 -0500 +@@ -595,6 +595,8 @@ static struct css_set *find_css_set( + struct hlist_head *hhead; + struct cg_cgroup_link *link; + ++ pax_track_stack(); ++ + /* First see if we already have a cgroup group that matches + * the desired set */ + read_lock(&css_set_lock); +diff -urNp linux-3.1.1/kernel/compat.c linux-3.1.1/kernel/compat.c +--- linux-3.1.1/kernel/compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/compat.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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> +@@ -167,7 +168,7 @@ static long compat_nanosleep_restart(str + 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); +@@ -199,7 +200,7 @@ asmlinkage long compat_sys_nanosleep(str + 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); + +@@ -308,7 +309,7 @@ asmlinkage long compat_sys_sigpending(co + 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); +@@ -331,8 +332,8 @@ asmlinkage long compat_sys_sigprocmask(i + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = sys_sigprocmask(how, +- set ? (old_sigset_t __user *) &s : NULL, +- oset ? (old_sigset_t __user *) &s : NULL); ++ set ? (old_sigset_t __force_user *) &s : NULL, ++ oset ? (old_sigset_t __force_user *) &s : NULL); + set_fs(old_fs); + if (ret == 0) + if (oset) +@@ -369,7 +370,7 @@ asmlinkage long compat_sys_old_getrlimit + 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) { +@@ -441,7 +442,7 @@ asmlinkage long compat_sys_getrusage(int + 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) +@@ -468,8 +469,8 @@ compat_sys_wait4(compat_pid_t pid, compa + 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) { +@@ -494,8 +495,8 @@ asmlinkage long compat_sys_waitid(int wh + 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)) +@@ -625,8 +626,8 @@ long compat_sys_timer_settime(timer_t ti + 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; +@@ -643,7 +644,7 @@ long compat_sys_timer_gettime(timer_t ti + 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; +@@ -662,7 +663,7 @@ long compat_sys_clock_settime(clockid_t + 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; + } +@@ -677,7 +678,7 @@ long compat_sys_clock_gettime(clockid_t + 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; +@@ -697,7 +698,7 @@ long compat_sys_clock_adjtime(clockid_t + + 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); +@@ -717,7 +718,7 @@ long compat_sys_clock_getres(clockid_t w + 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; +@@ -729,9 +730,9 @@ static long compat_clock_nanosleep_resta + 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); +@@ -763,8 +764,8 @@ long compat_sys_clock_nanosleep(clockid_ + 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 -urNp linux-3.1.1/kernel/configs.c linux-3.1.1/kernel/configs.c +--- linux-3.1.1/kernel/configs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/configs.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 -urNp linux-3.1.1/kernel/cred.c linux-3.1.1/kernel/cred.c +--- linux-3.1.1/kernel/cred.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/cred.c 2011-11-16 18:40:44.000000000 -0500 +@@ -158,6 +158,8 @@ static void put_cred_rcu(struct rcu_head + */ + void __put_cred(struct cred *cred) + { ++ pax_track_stack(); ++ + kdebug("__put_cred(%p{%d,%d})", cred, + atomic_read(&cred->usage), + read_cred_subscribers(cred)); +@@ -182,6 +184,8 @@ void exit_creds(struct task_struct *tsk) + { + struct cred *cred; + ++ pax_track_stack(); ++ + kdebug("exit_creds(%u,%p,%p,{%d,%d})", tsk->pid, tsk->real_cred, tsk->cred, + atomic_read(&tsk->cred->usage), + read_cred_subscribers(tsk->cred)); +@@ -220,6 +224,8 @@ const struct cred *get_task_cred(struct + { + const struct cred *cred; + ++ pax_track_stack(); ++ + rcu_read_lock(); + + do { +@@ -239,6 +245,8 @@ struct cred *cred_alloc_blank(void) + { + struct cred *new; + ++ pax_track_stack(); ++ + new = kmem_cache_zalloc(cred_jar, GFP_KERNEL); + if (!new) + return NULL; +@@ -287,6 +295,8 @@ struct cred *prepare_creds(void) + const struct cred *old; + struct cred *new; + ++ pax_track_stack(); ++ + validate_process_creds(); + + new = kmem_cache_alloc(cred_jar, GFP_KERNEL); +@@ -333,6 +343,8 @@ struct cred *prepare_exec_creds(void) + struct thread_group_cred *tgcred = NULL; + struct cred *new; + ++ pax_track_stack(); ++ + #ifdef CONFIG_KEYS + tgcred = kmalloc(sizeof(*tgcred), GFP_KERNEL); + if (!tgcred) +@@ -385,6 +397,8 @@ int copy_creds(struct task_struct *p, un + struct cred *new; + int ret; + ++ pax_track_stack(); ++ + if ( + #ifdef CONFIG_KEYS + !p->cred->thread_keyring && +@@ -475,6 +489,8 @@ int commit_creds(struct cred *new) + struct task_struct *task = current; + const struct cred *old = task->real_cred; + ++ pax_track_stack(); ++ + kdebug("commit_creds(%p{%d,%d})", new, + atomic_read(&new->usage), + read_cred_subscribers(new)); +@@ -489,6 +505,8 @@ 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 || +@@ -549,6 +567,8 @@ EXPORT_SYMBOL(commit_creds); + */ + void abort_creds(struct cred *new) + { ++ pax_track_stack(); ++ + kdebug("abort_creds(%p{%d,%d})", new, + atomic_read(&new->usage), + read_cred_subscribers(new)); +@@ -572,6 +592,8 @@ const struct cred *override_creds(const + { + const struct cred *old = current->cred; + ++ pax_track_stack(); ++ + kdebug("override_creds(%p{%d,%d})", new, + atomic_read(&new->usage), + read_cred_subscribers(new)); +@@ -601,6 +623,8 @@ void revert_creds(const struct cred *old + { + const struct cred *override = current->cred; + ++ pax_track_stack(); ++ + kdebug("revert_creds(%p{%d,%d})", old, + atomic_read(&old->usage), + read_cred_subscribers(old)); +@@ -647,6 +671,8 @@ struct cred *prepare_kernel_cred(struct + const struct cred *old; + struct cred *new; + ++ pax_track_stack(); ++ + new = kmem_cache_alloc(cred_jar, GFP_KERNEL); + if (!new) + return NULL; +@@ -701,6 +727,8 @@ EXPORT_SYMBOL(prepare_kernel_cred); + */ + int set_security_override(struct cred *new, u32 secid) + { ++ pax_track_stack(); ++ + return security_kernel_act_as(new, secid); + } + EXPORT_SYMBOL(set_security_override); +@@ -720,6 +748,8 @@ int set_security_override_from_ctx(struc + u32 secid; + int ret; + ++ pax_track_stack(); ++ + ret = security_secctx_to_secid(secctx, strlen(secctx), &secid); + if (ret < 0) + return ret; +diff -urNp linux-3.1.1/kernel/debug/debug_core.c linux-3.1.1/kernel/debug/debug_core.c +--- linux-3.1.1/kernel/debug/debug_core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/debug/debug_core.c 2011-11-16 18:39:08.000000000 -0500 +@@ -119,7 +119,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_loc + */ + 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; +@@ -129,7 +129,7 @@ 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 +@@ -542,7 +542,7 @@ 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); +@@ -636,8 +636,8 @@ 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 +@@ -834,18 +834,18 @@ static void kgdb_unregister_callbacks(vo + 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 -urNp linux-3.1.1/kernel/debug/kdb/kdb_main.c linux-3.1.1/kernel/debug/kdb/kdb_main.c +--- linux-3.1.1/kernel/debug/kdb/kdb_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/debug/kdb/kdb_main.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1980,7 +1980,7 @@ static int kdb_lsmod(int argc, const cha + 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("%4d ", module_refcount(mod)); + #endif +@@ -1990,7 +1990,7 @@ static int kdb_lsmod(int argc, const cha + 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 -urNp linux-3.1.1/kernel/events/core.c linux-3.1.1/kernel/events/core.c +--- linux-3.1.1/kernel/events/core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/events/core.c 2011-11-16 18:39:08.000000000 -0500 +@@ -172,7 +172,7 @@ int perf_proc_update_handler(struct ctl_ + 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); +@@ -2535,7 +2535,7 @@ 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) +@@ -3060,9 +3060,9 @@ u64 perf_event_read_value(struct perf_ev + 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); +@@ -3448,10 +3448,10 @@ void perf_event_update_userpage(struct p + 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); + + barrier(); + ++userpg->lock; +@@ -3822,11 +3822,11 @@ static void perf_output_read_one(struct + 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); +@@ -4477,12 +4477,12 @@ static void perf_event_mmap_event(struct + * 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; +@@ -5833,7 +5833,7 @@ perf_event_alloc(struct perf_event_attr + 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; + +@@ -6355,10 +6355,10 @@ static void sync_child_event(struct perf + /* + * 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 -urNp linux-3.1.1/kernel/exit.c linux-3.1.1/kernel/exit.c +--- linux-3.1.1/kernel/exit.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/exit.c 2011-11-16 19:33:48.000000000 -0500 +@@ -57,6 +57,10 @@ + #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) +@@ -168,6 +172,10 @@ 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(); +@@ -324,11 +332,22 @@ static void reparent_to_kthreadd(void) + { + write_lock_irq(&tasklist_lock); + ++#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 ++ + ptrace_unlink(current); + /* Reparent to init */ + current->real_parent = current->parent = kthreadd_task; + list_move_tail(&current->sibling, &current->real_parent->children); + ++ gr_set_kernel_label(current); ++ + /* Set the exit signal to SIGCHLD so we signal init on exit */ + current->exit_signal = SIGCHLD; + +@@ -380,7 +399,7 @@ 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; +@@ -416,6 +435,17 @@ 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 +@@ -895,6 +925,8 @@ NORET_TYPE 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)); +@@ -911,7 +943,6 @@ NORET_TYPE 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); + +@@ -973,6 +1004,9 @@ NORET_TYPE 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) +diff -urNp linux-3.1.1/kernel/fork.c linux-3.1.1/kernel/fork.c +--- linux-3.1.1/kernel/fork.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/fork.c 2011-11-16 19:36:31.000000000 -0500 +@@ -285,7 +285,7 @@ static struct task_struct *dup_task_stru + *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 + + /* +@@ -309,13 +309,77 @@ out: + } + + #ifdef CONFIG_MMU ++static struct vm_area_struct *dup_vma(struct mm_struct *mm, 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 int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; ++ if (security_vm_enough_memory(len)) ++ 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); +@@ -327,8 +391,8 @@ static int dup_mmap(struct mm_struct *mm + 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; +@@ -344,8 +408,6 @@ static int dup_mmap(struct mm_struct *mm + + 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; +@@ -353,55 +415,13 @@ static int dup_mmap(struct mm_struct *mm + -pages); + continue; + } +- charge = 0; +- if (mpnt->vm_flags & VM_ACCOUNT) { +- unsigned int len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT; +- if (security_vm_enough_memory(len)) +- goto fail_nomem; +- charge = len; +- } +- 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); ++ tmp = dup_vma(mm, mpnt); ++ if (!tmp) { ++ retval = -ENOMEM; ++ goto out; + } + + /* +- * 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. + */ + *pprev = tmp; +@@ -422,6 +442,31 @@ static int dup_mmap(struct mm_struct *mm + 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; +@@ -430,14 +475,6 @@ 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) +@@ -837,13 +874,14 @@ static int copy_fs(unsigned long clone_f + 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; + } + +@@ -1105,6 +1143,9 @@ static struct task_struct *copy_process( + 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) && +@@ -1264,6 +1305,8 @@ static struct task_struct *copy_process( + 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()? +@@ -1428,6 +1471,8 @@ bad_fork_cleanup_count: + bad_fork_free: + free_task(p); + fork_out: ++ gr_log_forkfail(retval); ++ + return ERR_PTR(retval); + } + +@@ -1528,6 +1573,8 @@ 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); +@@ -1637,7 +1684,7 @@ static int unshare_fs(unsigned long unsh + 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); +@@ -1726,7 +1773,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, + 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 -urNp linux-3.1.1/kernel/futex.c linux-3.1.1/kernel/futex.c +--- linux-3.1.1/kernel/futex.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/futex.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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/module.h> + #include <linux/magic.h> +@@ -238,6 +239,11 @@ get_futex_key(u32 __user *uaddr, int fsh + 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. + */ +@@ -1863,6 +1869,8 @@ static int futex_wait(u32 __user *uaddr, + struct futex_q q = futex_q_init; + int ret; + ++ pax_track_stack(); ++ + if (!bitset) + return -EINVAL; + q.bitset = bitset; +@@ -2259,6 +2267,8 @@ static int futex_wait_requeue_pi(u32 __u + struct futex_q q = futex_q_init; + int res, ret; + ++ pax_track_stack(); ++ + if (!bitset) + return -EINVAL; + +@@ -2431,7 +2441,9 @@ SYSCALL_DEFINE3(get_robust_list, int, pi + { + struct robust_list_head __user *head; + unsigned long ret; ++#ifndef CONFIG_GRKERNSEC_PROC_MEMMAP + const struct cred *cred = current_cred(), *pcred; ++#endif + + if (!futex_cmpxchg_enabled) + return -ENOSYS; +@@ -2447,6 +2459,10 @@ SYSCALL_DEFINE3(get_robust_list, int, pi + if (!p) + goto err_unlock; + ret = -EPERM; ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (!ptrace_may_access(p, PTRACE_MODE_READ)) ++ goto err_unlock; ++#else + pcred = __task_cred(p); + /* If victim is in different user_ns, then uids are not + comparable, so we must have CAP_SYS_PTRACE */ +@@ -2461,6 +2477,7 @@ SYSCALL_DEFINE3(get_robust_list, int, pi + !ns_capable(pcred->user->user_ns, CAP_SYS_PTRACE)) + goto err_unlock; + ok: ++#endif + head = p->robust_list; + rcu_read_unlock(); + } +@@ -2712,6 +2729,7 @@ 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 +@@ -2723,8 +2741,11 @@ 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 -urNp linux-3.1.1/kernel/futex_compat.c linux-3.1.1/kernel/futex_compat.c +--- linux-3.1.1/kernel/futex_compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/futex_compat.c 2011-11-16 18:40:44.000000000 -0500 +@@ -10,6 +10,7 @@ + #include <linux/compat.h> + #include <linux/nsproxy.h> + #include <linux/futex.h> ++#include <linux/ptrace.h> + + #include <asm/uaccess.h> + +@@ -136,7 +137,10 @@ compat_sys_get_robust_list(int pid, comp + { + struct compat_robust_list_head __user *head; + unsigned long ret; +- const struct cred *cred = current_cred(), *pcred; ++#ifndef CONFIG_GRKERNSEC_PROC_MEMMAP ++ const struct cred *cred = current_cred(); ++ const struct cred *pcred; ++#endif + + if (!futex_cmpxchg_enabled) + return -ENOSYS; +@@ -152,6 +156,10 @@ compat_sys_get_robust_list(int pid, comp + if (!p) + goto err_unlock; + ret = -EPERM; ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (!ptrace_may_access(p, PTRACE_MODE_READ)) ++ goto err_unlock; ++#else + pcred = __task_cred(p); + /* If victim is in different user_ns, then uids are not + comparable, so we must have CAP_SYS_PTRACE */ +@@ -166,6 +174,7 @@ compat_sys_get_robust_list(int pid, comp + !ns_capable(pcred->user->user_ns, CAP_SYS_PTRACE)) + goto err_unlock; + ok: ++#endif + head = p->compat_robust_list; + rcu_read_unlock(); + } +diff -urNp linux-3.1.1/kernel/gcov/base.c linux-3.1.1/kernel/gcov/base.c +--- linux-3.1.1/kernel/gcov/base.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/gcov/base.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 n + 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 -urNp linux-3.1.1/kernel/hrtimer.c linux-3.1.1/kernel/hrtimer.c +--- linux-3.1.1/kernel/hrtimer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/hrtimer.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1391,7 +1391,7 @@ 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 -urNp linux-3.1.1/kernel/jump_label.c linux-3.1.1/kernel/jump_label.c +--- linux-3.1.1/kernel/jump_label.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/jump_label.c 2011-11-16 18:39:08.000000000 -0500 +@@ -55,7 +55,9 @@ jump_label_sort_entries(struct jump_entr + + 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 jump_label_key *key, int enable); +@@ -297,10 +299,12 @@ static void jump_label_invalidate_module + 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 -urNp linux-3.1.1/kernel/kallsyms.c linux-3.1.1/kernel/kallsyms.c +--- linux-3.1.1/kernel/kallsyms.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/kallsyms.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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_mark + + 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(unsigne + + 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(st + + 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, vo + { + 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 *i + 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 -urNp linux-3.1.1/kernel/kexec.c linux-3.1.1/kernel/kexec.c +--- linux-3.1.1/kernel/kexec.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/kexec.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1033,7 +1033,8 @@ asmlinkage long compat_sys_kexec_load(un + 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 -urNp linux-3.1.1/kernel/kmod.c linux-3.1.1/kernel/kmod.c +--- linux-3.1.1/kernel/kmod.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/kmod.c 2011-11-16 18:40:44.000000000 -0500 +@@ -73,13 +73,12 @@ char modprobe_path[KMOD_PATH_LEN] = "/sb + * 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; +- char *argv[] = { modprobe_path, "-q", "--", module_name, NULL }; ++ char *argv[] = { modprobe_path, "-q", "--", module_name, module_param, NULL }; + static char *envp[] = { "HOME=/", + "TERM=linux", + "PATH=/sbin:/usr/sbin:/bin:/usr/bin", +@@ -88,9 +87,7 @@ int __request_module(bool wait, const ch + #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; + +@@ -98,6 +95,20 @@ int __request_module(bool wait, const ch + 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 +@@ -133,6 +144,47 @@ int __request_module(bool wait, const ch + 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 */ + +@@ -222,7 +274,7 @@ 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 -urNp linux-3.1.1/kernel/kprobes.c linux-3.1.1/kernel/kprobes.c +--- linux-3.1.1/kernel/kprobes.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/kprobes.c 2011-11-16 18:39:08.000000000 -0500 +@@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_ + * 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(st + */ + 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; +@@ -1949,7 +1949,7 @@ 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; +@@ -2075,7 +2075,7 @@ static int __kprobes show_kprobe_addr(st + 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 -urNp linux-3.1.1/kernel/lockdep.c linux-3.1.1/kernel/lockdep.c +--- linux-3.1.1/kernel/lockdep.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/lockdep.c 2011-11-16 18:39:08.000000000 -0500 +@@ -583,6 +583,10 @@ 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? + */ +@@ -718,6 +722,7 @@ register_lock_class(struct lockdep_map * + 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(); +@@ -2948,7 +2953,7 @@ static int __lock_acquire(struct lockdep + 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 -urNp linux-3.1.1/kernel/lockdep_proc.c linux-3.1.1/kernel/lockdep_proc.c +--- linux-3.1.1/kernel/lockdep_proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/lockdep_proc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -39,7 +39,7 @@ static void l_stop(struct seq_file *m, 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 -urNp linux-3.1.1/kernel/module.c linux-3.1.1/kernel/module.c +--- linux-3.1.1/kernel/module.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/module.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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> +@@ -119,7 +120,8 @@ static BLOCKING_NOTIFIER_HEAD(module_not + + /* 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) + { +@@ -284,7 +286,7 @@ bool each_symbol_section(bool (*fn)(cons + 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, +@@ -306,7 +308,7 @@ bool each_symbol_section(bool (*fn)(cons + #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; +@@ -438,7 +440,7 @@ static inline void __percpu *mod_percpu( + 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; +@@ -1183,7 +1185,7 @@ 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; +@@ -1649,21 +1651,21 @@ 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); + } + +@@ -1674,14 +1676,14 @@ 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); + } + } +@@ -1695,14 +1697,14 @@ 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); + } + } +@@ -1748,16 +1750,19 @@ static void free_module(struct module *m + + /* 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); +@@ -1826,10 +1831,31 @@ static int simplify_symbols(struct modul + unsigned int i; + 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 +@@ -1850,7 +1876,9 @@ static int simplify_symbols(struct modul + 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; + } + +@@ -1869,11 +1897,20 @@ static int simplify_symbols(struct modul + 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; + } + +@@ -1977,22 +2014,12 @@ static void layout_sections(struct modul + || 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); + DEBUGP("\t%s\n", name); + } +- 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; +- } + } + + DEBUGP("Init section allocation order:\n"); +@@ -2006,23 +2033,13 @@ static void layout_sections(struct modul + || 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; + DEBUGP("\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; +- } + } + } + +@@ -2187,7 +2204,7 @@ static void layout_symtab(struct module + + /* 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; + DEBUGP("\t%s\n", info->secstrings + symsect->sh_name); + +@@ -2204,19 +2221,19 @@ static void layout_symtab(struct module + } + + /* Append room for core symbols at end of core part. */ +- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); +- mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym); ++ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1); ++ mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym); + + /* 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; + DEBUGP("\t%s\n", info->secstrings + strsect->sh_name); + + /* Append room for core symbols' strings at end of core part. */ +- info->stroffs = mod->core_size; ++ info->stroffs = mod->core_size_rx; + __set_bit(0, info->strmap); +- mod->core_size += bitmap_weight(info->strmap, strsect->sh_size); ++ mod->core_size_rx += bitmap_weight(info->strmap, strsect->sh_size); + } + + static void add_kallsyms(struct module *mod, const struct load_info *info) +@@ -2232,11 +2249,13 @@ static void add_kallsyms(struct module * + /* 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_symtab = dst = mod->module_core_rx + info->symoffs; + src = mod->symtab; + *dst = *src; + for (ndst = i = 1; i < mod->num_symtab; ++i, ++src) { +@@ -2249,10 +2268,12 @@ static void add_kallsyms(struct module * + } + mod->core_num_syms = ndst; + +- mod->core_strtab = s = mod->module_core + info->stroffs; ++ mod->core_strtab = s = mod->module_core_rx + info->stroffs; + for (*s = 0, i = 1; i < info->sechdrs[info->index.str].sh_size; ++i) + if (test_bit(i, info->strmap)) + *++s = mod->strtab[i]; ++ ++ pax_close_kernel(); + } + #else + static inline void layout_symtab(struct module *mod, struct load_info *info) +@@ -2286,17 +2307,33 @@ void * __weak module_alloc(unsigned long + 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; +@@ -2589,7 +2626,7 @@ static int move_module(struct module *mo + 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 +@@ -2599,23 +2636,50 @@ static int move_module(struct module *mo + 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 */ + DEBUGP("final section addresses:\n"); +@@ -2626,16 +2690,45 @@ static int move_module(struct module *mo + 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; + DEBUGP("\t0x%lx %s\n", + shdr->sh_addr, info->secstrings + shdr->sh_name); + } +@@ -2686,12 +2779,12 @@ static void flush_module_icache(const st + * 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); + } +@@ -2771,8 +2864,10 @@ static void module_deallocate(struct mod + { + kfree(info->strmap); + 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, +@@ -2836,9 +2931,38 @@ static struct module *load_module(void _ + 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) +@@ -2854,13 +2978,6 @@ static struct module *load_module(void _ + + 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; + +@@ -2920,11 +3037,10 @@ static struct module *load_module(void _ + 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: +@@ -2965,16 +3081,16 @@ SYSCALL_DEFINE3(init_module, void __user + 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 */ +@@ -3020,11 +3136,12 @@ SYSCALL_DEFINE3(init_module, void __user + 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; +@@ -3055,10 +3172,16 @@ static const char *get_ksymbol(struct mo + 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). */ +@@ -3304,7 +3427,7 @@ static int m_show(struct seq_file *m, vo + 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. */ +@@ -3313,7 +3436,7 @@ static int m_show(struct seq_file *m, vo + 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) +@@ -3349,7 +3472,17 @@ static const struct file_operations proc + + 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); +@@ -3408,12 +3541,12 @@ struct module *__module_address(unsigned + { + 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; + } +@@ -3447,11 +3580,20 @@ bool is_module_text_address(unsigned lon + */ + 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 -urNp linux-3.1.1/kernel/mutex.c linux-3.1.1/kernel/mutex.c +--- linux-3.1.1/kernel/mutex.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/mutex.c 2011-11-16 18:39:08.000000000 -0500 +@@ -198,7 +198,7 @@ __mutex_lock_common(struct mutex *lock, + 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, + * 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); + +@@ -249,7 +248,7 @@ __mutex_lock_common(struct mutex *lock, + 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 -urNp linux-3.1.1/kernel/mutex-debug.c linux-3.1.1/kernel/mutex-debug.c +--- linux-3.1.1/kernel/mutex-debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/mutex-debug.c 2011-11-16 18:39:08.000000000 -0500 +@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mute + } + + 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 -urNp linux-3.1.1/kernel/mutex-debug.h linux-3.1.1/kernel/mutex-debug.h +--- linux-3.1.1/kernel/mutex-debug.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/mutex-debug.h 2011-11-16 18:39:08.000000000 -0500 +@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(stru + 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 -urNp linux-3.1.1/kernel/padata.c linux-3.1.1/kernel/padata.c +--- linux-3.1.1/kernel/padata.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/padata.c 2011-11-16 18:39:08.000000000 -0500 +@@ -132,10 +132,10 @@ int padata_do_parallel(struct padata_ins + padata->pd = pd; + padata->cb_cpu = cb_cpu; + +- if (unlikely(atomic_read(&pd->seq_nr) == pd->max_seq_nr)) +- atomic_set(&pd->seq_nr, -1); ++ if (unlikely(atomic_read_unchecked(&pd->seq_nr) == pd->max_seq_nr)) ++ atomic_set_unchecked(&pd->seq_nr, -1); + +- padata->seq_nr = atomic_inc_return(&pd->seq_nr); ++ padata->seq_nr = atomic_inc_return_unchecked(&pd->seq_nr); + + target_cpu = padata_cpu_hash(padata); + queue = per_cpu_ptr(pd->pqueue, target_cpu); +@@ -444,7 +444,7 @@ static struct parallel_data *padata_allo + padata_init_pqueues(pd); + padata_init_squeues(pd); + setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd); +- atomic_set(&pd->seq_nr, -1); ++ atomic_set_unchecked(&pd->seq_nr, -1); + atomic_set(&pd->reorder_objects, 0); + atomic_set(&pd->refcnt, 0); + pd->pinst = pinst; +diff -urNp linux-3.1.1/kernel/panic.c linux-3.1.1/kernel/panic.c +--- linux-3.1.1/kernel/panic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/panic.c 2011-11-16 18:40:44.000000000 -0500 +@@ -371,7 +371,7 @@ static void warn_slowpath_common(const c + 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); +@@ -426,7 +426,8 @@ 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 -urNp linux-3.1.1/kernel/pid.c linux-3.1.1/kernel/pid.c +--- linux-3.1.1/kernel/pid.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/pid.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 + + 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; +@@ -418,8 +419,15 @@ 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()); +- 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) +@@ -427,6 +435,12 @@ struct task_struct *find_task_by_vpid(pi + 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()); ++ 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 -urNp linux-3.1.1/kernel/posix-cpu-timers.c linux-3.1.1/kernel/posix-cpu-timers.c +--- linux-3.1.1/kernel/posix-cpu-timers.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/posix-cpu-timers.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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> +@@ -1606,14 +1607,14 @@ 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 -urNp linux-3.1.1/kernel/posix-timers.c linux-3.1.1/kernel/posix-timers.c +--- linux-3.1.1/kernel/posix-timers.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/posix-timers.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 cloc + */ + 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, +@@ -272,6 +273,8 @@ static __init int init_posix_timers(void + .timer_del = common_timer_del, + }; + ++ pax_track_stack(); ++ + posix_timers_register_clock(CLOCK_REALTIME, &clock_realtime); + posix_timers_register_clock(CLOCK_MONOTONIC, &clock_monotonic); + posix_timers_register_clock(CLOCK_MONOTONIC_RAW, &clock_monotonic_raw); +@@ -473,7 +476,7 @@ void posix_timers_register_clock(const c + return; + } + +- posix_clocks[clock_id] = *new_clock; ++ posix_clocks[clock_id] = new_clock; + } + EXPORT_SYMBOL_GPL(posix_timers_register_clock); + +@@ -519,9 +522,9 @@ static struct k_clock *clockid_to_kclock + 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 +962,13 @@ SYSCALL_DEFINE2(clock_settime, const clo + 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 -urNp linux-3.1.1/kernel/power/poweroff.c linux-3.1.1/kernel/power/poweroff.c +--- linux-3.1.1/kernel/power/poweroff.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/power/poweroff.c 2011-11-16 18:39:08.000000000 -0500 +@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_powerof + .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 -urNp linux-3.1.1/kernel/power/process.c linux-3.1.1/kernel/power/process.c +--- linux-3.1.1/kernel/power/process.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/power/process.c 2011-11-16 18:39:08.000000000 -0500 +@@ -41,6 +41,7 @@ static int try_to_freeze_tasks(bool sig_ + u64 elapsed_csecs64; + unsigned int elapsed_csecs; + bool wakeup = false; ++ bool timedout = false; + + do_gettimeofday(&start); + +@@ -51,6 +52,8 @@ static int try_to_freeze_tasks(bool sig_ + + while (true) { + todo = 0; ++ if (time_after(jiffies, end_time)) ++ timedout = true; + read_lock(&tasklist_lock); + do_each_thread(g, p) { + if (frozen(p) || !freezable(p)) +@@ -71,9 +74,13 @@ static int try_to_freeze_tasks(bool sig_ + * try_to_stop() after schedule() in ptrace/signal + * stop sees TIF_FREEZE. + */ +- 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); + +@@ -82,7 +89,7 @@ static int try_to_freeze_tasks(bool sig_ + todo += wq_busy; + } + +- if (!todo || time_after(jiffies, end_time)) ++ if (!todo || timedout) + break; + + if (pm_wakeup_pending()) { +diff -urNp linux-3.1.1/kernel/printk.c linux-3.1.1/kernel/printk.c +--- linux-3.1.1/kernel/printk.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/printk.c 2011-11-16 19:38:11.000000000 -0500 +@@ -313,6 +313,11 @@ static int check_syslog_permissions(int + 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 -urNp linux-3.1.1/kernel/profile.c linux-3.1.1/kernel/profile.c +--- linux-3.1.1/kernel/profile.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/profile.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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, vo + * 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, vo + { + 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 __u + 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 + } + #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 -urNp linux-3.1.1/kernel/ptrace.c linux-3.1.1/kernel/ptrace.c +--- linux-3.1.1/kernel/ptrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/ptrace.c 2011-11-16 19:50:22.000000000 -0500 +@@ -161,7 +161,8 @@ int ptrace_check_attach(struct task_stru + return ret; + } + +-int __ptrace_may_access(struct task_struct *task, unsigned int mode) ++static int __ptrace_may_access(struct task_struct *task, unsigned int mode, ++ unsigned int log) + { + const struct cred *cred = current_cred(), *tcred; + +@@ -187,7 +188,8 @@ int __ptrace_may_access(struct task_stru + cred->gid == tcred->sgid && + cred->gid == tcred->gid)) + goto ok; +- if (ns_capable(tcred->user->user_ns, CAP_SYS_PTRACE)) ++ if ((!log && ns_capable_nolog(tcred->user->user_ns, CAP_SYS_PTRACE)) || ++ (log && ns_capable(tcred->user->user_ns, CAP_SYS_PTRACE))) + goto ok; + rcu_read_unlock(); + return -EPERM; +@@ -196,7 +198,9 @@ ok: + smp_rmb(); + if (task->mm) + dumpable = get_dumpable(task->mm); +- if (!dumpable && !task_ns_capable(task, CAP_SYS_PTRACE)) ++ if (!dumpable && ++ ((!log && !task_ns_capable_nolog(task, CAP_SYS_PTRACE)) || ++ (log && !task_ns_capable(task, CAP_SYS_PTRACE)))) + return -EPERM; + + return security_ptrace_access_check(task, mode); +@@ -206,7 +210,16 @@ bool ptrace_may_access(struct task_struc + { + int err; + task_lock(task); +- err = __ptrace_may_access(task, mode); ++ err = __ptrace_may_access(task, mode, 0); ++ task_unlock(task); ++ return !err; ++} ++ ++bool ptrace_may_access_log(struct task_struct *task, unsigned int mode) ++{ ++ int err; ++ task_lock(task); ++ err = __ptrace_may_access(task, mode, 1); + task_unlock(task); + return !err; + } +@@ -251,7 +264,7 @@ static int ptrace_attach(struct task_str + goto out; + + task_lock(task); +- retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH); ++ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH, 1); + task_unlock(task); + if (retval) + goto unlock_creds; +@@ -266,7 +279,7 @@ static int ptrace_attach(struct task_str + task->ptrace = PT_PTRACED; + if (seize) + task->ptrace |= PT_SEIZED; +- if (task_ns_capable(task, CAP_SYS_PTRACE)) ++ if (task_ns_capable_nolog(task, CAP_SYS_PTRACE)) + task->ptrace |= PT_PTRACE_CAP; + + __ptrace_link(task, current); +@@ -461,6 +474,8 @@ int ptrace_readdata(struct task_struct * + { + int copied = 0; + ++ pax_track_stack(); ++ + while (len > 0) { + char buf[128]; + int this_len, retval; +@@ -472,7 +487,7 @@ int ptrace_readdata(struct task_struct * + 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; +@@ -486,6 +501,8 @@ int ptrace_writedata(struct task_struct + { + int copied = 0; + ++ pax_track_stack(); ++ + while (len > 0) { + char buf[128]; + int this_len, retval; +@@ -669,10 +686,12 @@ int ptrace_request(struct task_struct *c + 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; + ++ pax_track_stack(); ++ + switch (request) { + case PTRACE_PEEKTEXT: + case PTRACE_PEEKDATA: +@@ -871,14 +890,21 @@ SYSCALL_DEFINE4(ptrace, long, request, l + 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, 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; + } + +@@ -904,7 +930,7 @@ int generic_ptrace_peekdata(struct task_ + 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, +@@ -927,6 +953,8 @@ int compat_ptrace_request(struct task_st + siginfo_t siginfo; + int ret; + ++ pax_track_stack(); ++ + switch (request) { + case PTRACE_PEEKTEXT: + case PTRACE_PEEKDATA: +@@ -1014,14 +1042,21 @@ asmlinkage long compat_sys_ptrace(compat + 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, 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 -urNp linux-3.1.1/kernel/rcutorture.c linux-3.1.1/kernel/rcutorture.c +--- linux-3.1.1/kernel/rcutorture.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/rcutorture.c 2011-11-16 18:39:08.000000000 -0500 +@@ -138,12 +138,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_ + { 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; +@@ -223,11 +223,11 @@ 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); +@@ -240,7 +240,7 @@ 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); +@@ -360,7 +360,7 @@ 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); +@@ -407,7 +407,7 @@ static void rcu_sync_torture_deferred_fr + 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); +@@ -882,7 +882,7 @@ 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); + } +@@ -950,7 +950,7 @@ static void rcu_torture_timer(unsigned l + return; + } + 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++; +@@ -1011,7 +1011,7 @@ rcu_torture_reader(void *arg) + continue; + } + 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; +@@ -1070,16 +1070,16 @@ 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, + n_rcu_torture_boosts, + n_rcu_torture_timers); +- 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) +@@ -1087,7 +1087,7 @@ 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: "); +@@ -1101,7 +1101,7 @@ 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) +@@ -1410,7 +1410,7 @@ 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 + rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS"); +@@ -1474,17 +1474,17 @@ 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 -urNp linux-3.1.1/kernel/rcutree.c linux-3.1.1/kernel/rcutree.c +--- linux-3.1.1/kernel/rcutree.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/rcutree.c 2011-11-16 18:39:08.000000000 -0500 +@@ -356,9 +356,9 @@ void rcu_enter_nohz(void) + } + /* 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); + local_irq_restore(flags); + + /* If the interrupt queued a callback, get out of dyntick mode. */ +@@ -387,10 +387,10 @@ void rcu_exit_nohz(void) + return; + } + 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)); + local_irq_restore(flags); + } + +@@ -406,14 +406,14 @@ 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)); + } + + /** +@@ -432,9 +432,9 @@ 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); + } + + /** +@@ -469,7 +469,7 @@ void rcu_irq_exit(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 0; + } + +@@ -484,7 +484,7 @@ static int rcu_implicit_dynticks_qs(stru + unsigned long curr; + unsigned long snap; + +- curr = (unsigned long)atomic_add_return(0, &rdp->dynticks->dynticks); ++ curr = (unsigned long)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks); + snap = (unsigned long)rdp->dynticks_snap; + + /* +@@ -1470,7 +1470,7 @@ __rcu_process_callbacks(struct rcu_state + /* + * Do softirq processing for the current CPU. + */ +-static void rcu_process_callbacks(struct softirq_action *unused) ++static void rcu_process_callbacks(void) + { + __rcu_process_callbacks(&rcu_sched_state, + &__get_cpu_var(rcu_sched_data)); +diff -urNp linux-3.1.1/kernel/rcutree.h linux-3.1.1/kernel/rcutree.h +--- linux-3.1.1/kernel/rcutree.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/rcutree.h 2011-11-16 18:39:08.000000000 -0500 +@@ -86,7 +86,7 @@ + struct rcu_dynticks { + int dynticks_nesting; /* Track irq/process nesting level. */ + int dynticks_nmi_nesting; /* Track NMI nesting level. */ +- atomic_t dynticks; /* Even value for dynticks-idle, else odd. */ ++ atomic_unchecked_t dynticks; /* Even value for dynticks-idle, else odd. */ + }; + + /* RCU's kthread states for tracing. */ +diff -urNp linux-3.1.1/kernel/rcutree_plugin.h linux-3.1.1/kernel/rcutree_plugin.h +--- linux-3.1.1/kernel/rcutree_plugin.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/rcutree_plugin.h 2011-11-16 18:39:08.000000000 -0500 +@@ -822,7 +822,7 @@ 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: +@@ -1774,8 +1774,8 @@ EXPORT_SYMBOL_GPL(synchronize_sched_expe + + #else /* #ifndef CONFIG_SMP */ + +-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) + { +@@ -1830,7 +1830,7 @@ 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(); + + /* +@@ -1851,7 +1851,7 @@ 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; +@@ -1866,7 +1866,7 @@ void synchronize_sched_expedited(void) + * grace period works for us. + */ + get_online_cpus(); +- snap = atomic_read(&sync_sched_expedited_started) - 1; ++ snap = atomic_read_unchecked(&sync_sched_expedited_started) - 1; + smp_mb(); /* ensure read is before try_stop_cpus(). */ + } + +@@ -1877,12 +1877,12 @@ 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(); + } +diff -urNp linux-3.1.1/kernel/relay.c linux-3.1.1/kernel/relay.c +--- linux-3.1.1/kernel/relay.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/relay.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1236,6 +1236,8 @@ static ssize_t subbuf_splice_actor(struc + }; + ssize_t ret; + ++ pax_track_stack(); ++ + if (rbuf->subbufs_produced == rbuf->subbufs_consumed) + return 0; + if (splice_grow_spd(pipe, &spd)) +diff -urNp linux-3.1.1/kernel/resource.c linux-3.1.1/kernel/resource.c +--- linux-3.1.1/kernel/resource.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/resource.c 2011-11-16 18:40:44.000000000 -0500 +@@ -141,8 +141,18 @@ static const struct file_operations proc + + 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 -urNp linux-3.1.1/kernel/rtmutex-tester.c linux-3.1.1/kernel/rtmutex-tester.c +--- linux-3.1.1/kernel/rtmutex-tester.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/rtmutex-tester.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_ + + 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_ + 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_ + 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_ + 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_ + 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_mu + 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_mu + 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_mu + 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 -urNp linux-3.1.1/kernel/sched_autogroup.c linux-3.1.1/kernel/sched_autogroup.c +--- linux-3.1.1/kernel/sched_autogroup.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sched_autogroup.c 2011-11-16 18:39:08.000000000 -0500 +@@ -7,7 +7,7 @@ + + 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; + + static void __init autogroup_init(struct task_struct *init_task) + { +@@ -78,7 +78,7 @@ static inline struct autogroup *autogrou + + 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 -urNp linux-3.1.1/kernel/sched.c linux-3.1.1/kernel/sched.c +--- linux-3.1.1/kernel/sched.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sched.c 2011-11-16 18:40:44.000000000 -0500 +@@ -4264,6 +4264,8 @@ static void __sched __schedule(void) + struct rq *rq; + int cpu; + ++ pax_track_stack(); ++ + need_resched: + preempt_disable(); + cpu = smp_processor_id(); +@@ -4950,6 +4952,8 @@ int can_nice(const struct task_struct *p + /* 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)); + } +@@ -4983,7 +4987,8 @@ 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); +@@ -5127,6 +5132,7 @@ 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 -urNp linux-3.1.1/kernel/sched_fair.c linux-3.1.1/kernel/sched_fair.c +--- linux-3.1.1/kernel/sched_fair.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sched_fair.c 2011-11-16 18:39:08.000000000 -0500 +@@ -4062,7 +4062,7 @@ static void nohz_idle_balance(int this_c + * 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 -urNp linux-3.1.1/kernel/signal.c linux-3.1.1/kernel/signal.c +--- linux-3.1.1/kernel/signal.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/signal.c 2011-11-16 19:30:04.000000000 -0500 +@@ -45,12 +45,12 @@ static struct kmem_cache *sigqueue_cache + + 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 || +@@ -60,7 +60,7 @@ static int sig_handler_ignored(void __us + static int sig_task_ignored(struct task_struct *t, int sig, + int from_ancestor_ns) + { +- void __user *handler; ++ __sighandler_t handler; + + handler = sig_handler(t, sig); + +@@ -364,6 +364,9 @@ __sigqueue_alloc(int sig, struct task_st + 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)) { +@@ -488,7 +491,7 @@ flush_signal_handlers(struct task_struct + + 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) +@@ -815,6 +818,13 @@ static int check_kill_permission(int sig + } + } + ++ /* 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); + } + +@@ -1165,7 +1175,7 @@ __group_send_sig_info(int sig, struct si + 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); +@@ -1202,6 +1212,7 @@ force_sig_info(int sig, struct siginfo * + 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]; +@@ -1216,9 +1227,18 @@ force_sig_info(int sig, struct siginfo * + } + 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; + } + +@@ -1285,8 +1305,11 @@ int group_send_sig_info(int sig, struct + 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; + } +@@ -1909,6 +1932,8 @@ static void ptrace_do_notify(int signr, + { + siginfo_t info; + ++ pax_track_stack(); ++ + memset(&info, 0, sizeof info); + info.si_signo = signr; + info.si_code = exit_code; +@@ -2748,7 +2773,15 @@ do_send_specific(pid_t tgid, pid_t pid, + 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 -urNp linux-3.1.1/kernel/smp.c linux-3.1.1/kernel/smp.c +--- linux-3.1.1/kernel/smp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/smp.c 2011-11-16 18:39:08.000000000 -0500 +@@ -580,22 +580,22 @@ int smp_call_function(smp_call_func_t fu + } + 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 -urNp linux-3.1.1/kernel/softirq.c linux-3.1.1/kernel/softirq.c +--- linux-3.1.1/kernel/softirq.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/softirq.c 2011-11-16 18:39:08.000000000 -0500 +@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec + + 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" +@@ -385,9 +385,11 @@ void raise_softirq(unsigned int nr) + local_irq_restore(flags); + } + +-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(); + } + + /* +@@ -441,7 +443,7 @@ void __tasklet_hi_schedule_first(struct + + EXPORT_SYMBOL(__tasklet_hi_schedule_first); + +-static void tasklet_action(struct softirq_action *a) ++static void tasklet_action(void) + { + struct tasklet_struct *list; + +@@ -476,7 +478,7 @@ static void tasklet_action(struct softir + } + } + +-static void tasklet_hi_action(struct softirq_action *a) ++static void tasklet_hi_action(void) + { + struct tasklet_struct *list; + +diff -urNp linux-3.1.1/kernel/sys.c linux-3.1.1/kernel/sys.c +--- linux-3.1.1/kernel/sys.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sys.c 2011-11-16 18:40:44.000000000 -0500 +@@ -157,6 +157,12 @@ static int set_one_prio(struct task_stru + 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; +@@ -571,6 +577,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g + 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; +@@ -600,6 +609,10 @@ 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) +@@ -687,6 +700,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, u + 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) +@@ -731,6 +747,12 @@ 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) { +@@ -785,6 +807,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, + goto error; + } + ++ if (gr_check_user_change(ruid, euid, -1)) ++ goto error; ++ + if (ruid != (uid_t) -1) { + new->uid = ruid; + if (ruid != old->uid) { +@@ -849,6 +874,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, + 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) +@@ -895,6 +923,9 @@ 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)) { +@@ -905,6 +936,7 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) + } + } + ++error: + abort_creds(new); + return old_fsuid; + +@@ -931,12 +963,16 @@ 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; + +@@ -1242,19 +1278,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_ + 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); +@@ -1717,7 +1753,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsi + error = get_dumpable(me->mm); + break; + case PR_SET_DUMPABLE: +- if (arg2 < 0 || arg2 > 1) { ++ if (arg2 > 1) { + error = -EINVAL; + break; + } +diff -urNp linux-3.1.1/kernel/sysctl_binary.c linux-3.1.1/kernel/sysctl_binary.c +--- linux-3.1.1/kernel/sysctl_binary.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sysctl_binary.c 2011-11-16 18:39:08.000000000 -0500 +@@ -989,7 +989,7 @@ static ssize_t bin_intvec(struct file *f + 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 *f + } + + 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 + 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 + } + + 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 *fil + 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(struc + __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(struc + 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 -urNp linux-3.1.1/kernel/sysctl.c linux-3.1.1/kernel/sysctl.c +--- linux-3.1.1/kernel/sysctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sysctl.c 2011-11-16 18:40:44.000000000 -0500 +@@ -85,6 +85,13 @@ + + + #if defined(CONFIG_SYSCTL) ++#include <linux/grsecurity.h> ++#include <linux/grinternal.h> ++ ++extern __u32 gr_handle_sysctl(const ctl_table *table, const int op); ++extern int gr_handle_sysctl_mod(const char *dirname, const char *name, ++ const int op); ++extern int gr_handle_chroot_sysctl(const int op); + + /* External variables not in a header file. */ + extern int sysctl_overcommit_memory; +@@ -197,6 +204,7 @@ static int sysrq_sysctl_handler(ctl_tabl + } + + #endif ++extern struct ctl_table grsecurity_table[]; + + static struct ctl_table root_table[]; + static struct ctl_table_root sysctl_table_root; +@@ -226,6 +234,20 @@ 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 root_table[] = { +@@ -272,6 +294,22 @@ 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, +@@ -546,7 +584,7 @@ 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", +@@ -713,16 +751,20 @@ 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_dmesg_restrict, ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ .extra1 = &two, ++#else + .extra1 = &zero, ++#endif + .extra2 = &two, + }, +-#endif + { + .procname = "ngroups_max", + .data = &ngroups_max, +@@ -1205,6 +1247,13 @@ 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", +@@ -1709,6 +1758,17 @@ static int test_perm(int mode, int op) + int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op) + { + int mode; ++ int error; ++ ++ if (table->parent != NULL && table->parent->procname != NULL && ++ table->procname != NULL && ++ gr_handle_sysctl_mod(table->parent->procname, table->procname, op)) ++ return -EACCES; ++ if (gr_handle_chroot_sysctl(op)) ++ return -EACCES; ++ error = gr_handle_sysctl(table, op); ++ if (error) ++ return error; + + if (root->permissions) + mode = root->permissions(root, current->nsproxy, table); +@@ -2113,6 +2173,16 @@ int proc_dostring(struct ctl_table *tabl + 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; +@@ -2218,6 +2288,8 @@ static int proc_put_long(void __user **b + 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; +@@ -2534,8 +2606,11 @@ static int __do_proc_doulongvec_minmax(v + *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; +@@ -2930,6 +3005,12 @@ int proc_dostring(struct ctl_table *tabl + 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) + { +@@ -2986,6 +3067,7 @@ 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); + EXPORT_SYMBOL(register_sysctl_table); +diff -urNp linux-3.1.1/kernel/sysctl_check.c linux-3.1.1/kernel/sysctl_check.c +--- linux-3.1.1/kernel/sysctl_check.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/sysctl_check.c 2011-11-16 18:40:44.000000000 -0500 +@@ -129,6 +129,7 @@ int sysctl_check_table(struct nsproxy *n + set_fail(&fail, table, "Directory with extra2"); + } else { + if ((table->proc_handler == proc_dostring) || ++ (table->proc_handler == proc_dostring_modpriv) || + (table->proc_handler == proc_dointvec) || + (table->proc_handler == proc_dointvec_minmax) || + (table->proc_handler == proc_dointvec_jiffies) || +diff -urNp linux-3.1.1/kernel/taskstats.c linux-3.1.1/kernel/taskstats.c +--- linux-3.1.1/kernel/taskstats.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/taskstats.c 2011-11-16 19:35:09.000000000 -0500 +@@ -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 -urNp linux-3.1.1/kernel/time/alarmtimer.c linux-3.1.1/kernel/time/alarmtimer.c +--- linux-3.1.1/kernel/time/alarmtimer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time/alarmtimer.c 2011-11-16 18:39:08.000000000 -0500 +@@ -693,7 +693,7 @@ static int __init alarmtimer_init(void) + { + 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 -urNp linux-3.1.1/kernel/time/tick-broadcast.c linux-3.1.1/kernel/time/tick-broadcast.c +--- linux-3.1.1/kernel/time/tick-broadcast.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time/tick-broadcast.c 2011-11-16 18:39:08.000000000 -0500 +@@ -115,7 +115,7 @@ int tick_device_uses_broadcast(struct cl + * 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 -urNp linux-3.1.1/kernel/time/timekeeping.c linux-3.1.1/kernel/time/timekeeping.c +--- linux-3.1.1/kernel/time/timekeeping.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time/timekeeping.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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> +@@ -361,6 +362,8 @@ int do_settimeofday(const struct timespe + if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + return -EINVAL; + ++ gr_log_timechange(); ++ + write_seqlock_irqsave(&xtime_lock, flags); + + timekeeping_forward_now(); +diff -urNp linux-3.1.1/kernel/time/timer_list.c linux-3.1.1/kernel/time/timer_list.c +--- linux-3.1.1/kernel/time/timer_list.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time/timer_list.c 2011-11-16 18:40:44.000000000 -0500 +@@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, + + 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 + { + 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 -urNp linux-3.1.1/kernel/time/timer_stats.c linux-3.1.1/kernel/time/timer_stats.c +--- linux-3.1.1/kernel/time/timer_stats.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time/timer_stats.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 *time + 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 *time + + 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 * + + 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(voi + { + 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 -urNp linux-3.1.1/kernel/time.c linux-3.1.1/kernel/time.c +--- linux-3.1.1/kernel/time.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/time.c 2011-11-16 18:40:44.000000000 -0500 +@@ -163,6 +163,11 @@ int do_sys_settimeofday(const struct tim + return error; + + if (tz) { ++ /* we log in do_settimeofday called below, so don't log twice ++ */ ++ if (!tv) ++ gr_log_timechange(); ++ + /* SMP safe, global irq locking makes it work. */ + sys_tz = *tz; + update_vsyscall_tz(); +diff -urNp linux-3.1.1/kernel/timer.c linux-3.1.1/kernel/timer.c +--- linux-3.1.1/kernel/timer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/timer.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1304,7 +1304,7 @@ 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 -urNp linux-3.1.1/kernel/trace/blktrace.c linux-3.1.1/kernel/trace/blktrace.c +--- linux-3.1.1/kernel/trace/blktrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/blktrace.c 2011-11-16 18:39:08.000000000 -0500 +@@ -323,7 +323,7 @@ static ssize_t blk_dropped_read(struct f + 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)); + } +@@ -388,7 +388,7 @@ static int blk_subbuf_start_callback(str + return 1; + + bt = buf->chan->private_data; +- atomic_inc(&bt->dropped); ++ atomic_inc_unchecked(&bt->dropped); + return 0; + } + +@@ -489,7 +489,7 @@ int do_blk_trace_setup(struct request_qu + + 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 -urNp linux-3.1.1/kernel/trace/ftrace.c linux-3.1.1/kernel/trace/ftrace.c +--- linux-3.1.1/kernel/trace/ftrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/ftrace.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1585,12 +1585,17 @@ ftrace_code_disable(struct module *mod, + 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; + } + + /* +@@ -2607,7 +2612,7 @@ static void ftrace_free_entry_rcu(struct + + 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 -urNp linux-3.1.1/kernel/trace/trace.c linux-3.1.1/kernel/trace/trace.c +--- linux-3.1.1/kernel/trace/trace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace.c 2011-11-16 18:40:44.000000000 -0500 +@@ -3451,6 +3451,8 @@ static ssize_t tracing_splice_read_pipe( + size_t rem; + unsigned int i; + ++ pax_track_stack(); ++ + if (splice_grow_spd(pipe, &spd)) + return -ENOMEM; + +@@ -3926,6 +3928,8 @@ tracing_buffers_splice_read(struct file + int entries, size, i; + size_t ret; + ++ pax_track_stack(); ++ + if (splice_grow_spd(pipe, &spd)) + return -ENOMEM; + +@@ -4093,10 +4097,9 @@ static const struct file_operations trac + }; + #endif + +-static struct dentry *d_tracer; +- + struct dentry *tracing_init_dentry(void) + { ++ static struct dentry *d_tracer; + static int once; + + if (d_tracer) +@@ -4116,10 +4119,9 @@ 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 -urNp linux-3.1.1/kernel/trace/trace_events.c linux-3.1.1/kernel/trace/trace_events.c +--- linux-3.1.1/kernel/trace/trace_events.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_events.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1300,10 +1300,6 @@ 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 * +@@ -1324,17 +1320,12 @@ 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); + +@@ -1358,8 +1349,8 @@ static void trace_module_add_events(stru + + 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 -urNp linux-3.1.1/kernel/trace/trace_kprobe.c linux-3.1.1/kernel/trace/trace_kprobe.c +--- linux-3.1.1/kernel/trace/trace_kprobe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_kprobe.c 2011-11-16 18:39:08.000000000 -0500 +@@ -217,7 +217,7 @@ static __kprobes void FETCH_FUNC_NAME(me + 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(me + 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(me + ((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(me + 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 -urNp linux-3.1.1/kernel/trace/trace_mmiotrace.c linux-3.1.1/kernel/trace/trace_mmiotrace.c +--- linux-3.1.1/kernel/trace/trace_mmiotrace.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_mmiotrace.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_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 + 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 + 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 -urNp linux-3.1.1/kernel/trace/trace_output.c linux-3.1.1/kernel/trace/trace_output.c +--- linux-3.1.1/kernel/trace/trace_output.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_output.c 2011-11-16 18:39:08.000000000 -0500 +@@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, + + 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 -urNp linux-3.1.1/kernel/trace/trace_stack.c linux-3.1.1/kernel/trace/trace_stack.c +--- linux-3.1.1/kernel/trace/trace_stack.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_stack.c 2011-11-16 18:39:08.000000000 -0500 +@@ -50,7 +50,7 @@ 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 -urNp linux-3.1.1/kernel/trace/trace_workqueue.c linux-3.1.1/kernel/trace/trace_workqueue.c +--- linux-3.1.1/kernel/trace/trace_workqueue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/kernel/trace/trace_workqueue.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 se + 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 -urNp linux-3.1.1/lib/bitmap.c linux-3.1.1/lib/bitmap.c +--- linux-3.1.1/lib/bitmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/bitmap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -419,7 +419,7 @@ int __bitmap_parse(const char *buf, unsi + { + int c, old_c, totaldigits, ndigits, nchunks, nbits; + u32 chunk; +- const char __user *ubuf = buf; ++ const char __user *ubuf = (const char __force_user *)buf; + + bitmap_zero(maskp, nmaskbits); + +@@ -504,7 +504,7 @@ int bitmap_parse_user(const char __user + { + if (!access_ok(VERIFY_READ, ubuf, ulen)) + return -EFAULT; +- return __bitmap_parse((const char *)ubuf, ulen, 1, maskp, nmaskbits); ++ return __bitmap_parse((const char __force_kernel *)ubuf, ulen, 1, maskp, nmaskbits); + } + EXPORT_SYMBOL(bitmap_parse_user); + +@@ -594,7 +594,7 @@ static int __bitmap_parselist(const char + { + unsigned a, b; + int c, old_c, totaldigits; +- const char __user *ubuf = buf; ++ const char __user *ubuf = (const char __force_user *)buf; + int exp_digit, in_range; + + totaldigits = c = 0; +@@ -694,7 +694,7 @@ int bitmap_parselist_user(const char __u + { + if (!access_ok(VERIFY_READ, ubuf, ulen)) + return -EFAULT; +- return __bitmap_parselist((const char *)ubuf, ++ return __bitmap_parselist((const char __force_kernel *)ubuf, + ulen, 1, maskp, nmaskbits); + } + EXPORT_SYMBOL(bitmap_parselist_user); +diff -urNp linux-3.1.1/lib/bug.c linux-3.1.1/lib/bug.c +--- linux-3.1.1/lib/bug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/bug.c 2011-11-16 18:39:08.000000000 -0500 +@@ -133,6 +133,8 @@ enum bug_trap_type report_bug(unsigned l + return BUG_TRAP_TYPE_NONE; + + bug = find_bug(bugaddr); ++ if (!bug) ++ return BUG_TRAP_TYPE_NONE; + + file = NULL; + line = 0; +diff -urNp linux-3.1.1/lib/debugobjects.c linux-3.1.1/lib/debugobjects.c +--- linux-3.1.1/lib/debugobjects.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/debugobjects.c 2011-11-16 18:39:08.000000000 -0500 +@@ -284,7 +284,7 @@ static void debug_object_is_on_stack(voi + 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 -urNp linux-3.1.1/lib/devres.c linux-3.1.1/lib/devres.c +--- linux-3.1.1/lib/devres.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/devres.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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); +@@ -141,7 +141,7 @@ void devm_ioport_unmap(struct device *de + { + 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 -urNp linux-3.1.1/lib/dma-debug.c linux-3.1.1/lib/dma-debug.c +--- linux-3.1.1/lib/dma-debug.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/dma-debug.c 2011-11-16 18:39:08.000000000 -0500 +@@ -870,7 +870,7 @@ 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 -urNp linux-3.1.1/lib/extable.c linux-3.1.1/lib/extable.c +--- linux-3.1.1/lib/extable.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/extable.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 v + 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 -urNp linux-3.1.1/lib/inflate.c linux-3.1.1/lib/inflate.c +--- linux-3.1.1/lib/inflate.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/inflate.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/lib/Kconfig.debug linux-3.1.1/lib/Kconfig.debug +--- linux-3.1.1/lib/Kconfig.debug 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/Kconfig.debug 2011-11-16 18:40:44.000000000 -0500 +@@ -1091,6 +1091,7 @@ 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 + select KALLSYMS + select KALLSYMS_ALL +diff -urNp linux-3.1.1/lib/kref.c linux-3.1.1/lib/kref.c +--- linux-3.1.1/lib/kref.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/kref.c 2011-11-16 18:39:08.000000000 -0500 +@@ -52,7 +52,7 @@ void kref_get(struct kref *kref) + */ + int kref_put(struct kref *kref, void (*release)(struct kref *kref)) + { +- WARN_ON(release == NULL); ++ BUG_ON(release == NULL); + WARN_ON(release == (void (*)(struct kref *))kfree); + + if (atomic_dec_and_test(&kref->refcount)) { +diff -urNp linux-3.1.1/lib/radix-tree.c linux-3.1.1/lib/radix-tree.c +--- linux-3.1.1/lib/radix-tree.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/radix-tree.c 2011-11-16 18:39:08.000000000 -0500 +@@ -80,7 +80,7 @@ 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 -urNp linux-3.1.1/lib/vsprintf.c linux-3.1.1/lib/vsprintf.c +--- linux-3.1.1/lib/vsprintf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/lib/vsprintf.c 2011-11-16 18:40:44.000000000 -0500 +@@ -16,6 +16,9 @@ + * - scnprintf and vscnprintf + */ + ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++#define __INCLUDED_BY_HIDESYM 1 ++#endif + #include <stdarg.h> + #include <linux/module.h> + #include <linux/types.h> +@@ -432,7 +435,7 @@ char *symbol_string(char *buf, char *end + 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); +@@ -796,7 +799,11 @@ char *uuid_string(char *buf, char *end, + return string(buf, end, uuid, 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 +@@ -810,6 +817,8 @@ 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 +@@ -854,12 +863,12 @@ char *pointer(const char *fmt, char *buf + { + 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) { +@@ -869,6 +878,13 @@ char *pointer(const char *fmt, char *buf + /* 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': +@@ -1627,11 +1643,11 @@ int bstr_printf(char *buf, size_t size, + 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; \ +@@ -1694,7 +1710,7 @@ int bstr_printf(char *buf, size_t size, + 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 -urNp linux-3.1.1/localversion-grsec linux-3.1.1/localversion-grsec +--- linux-3.1.1/localversion-grsec 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/localversion-grsec 2011-11-16 18:40:44.000000000 -0500 +@@ -0,0 +1 @@ ++-grsec +diff -urNp linux-3.1.1/Makefile linux-3.1.1/Makefile +--- linux-3.1.1/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/Makefile 2011-11-17 18:56:01.000000000 -0500 +@@ -245,8 +245,9 @@ CONFIG_SHELL := $(shell if [ -x "$$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 + # 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 +565,37 @@ else + KBUILD_CFLAGS += -O2 + endif + ++ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(CC)"), y) ++CONSTIFY_PLUGIN := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN ++ifdef CONFIG_PAX_MEMORY_STACKLEAK ++STACKLEAK_PLUGIN := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN ++STACKLEAK_PLUGIN += -fplugin-arg-stackleak_plugin-track-lowest-sp=100 ++endif ++ifdef CONFIG_KALLOCSTAT_PLUGIN ++KALLOCSTAT_PLUGIN := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so ++endif ++ifdef CONFIG_PAX_KERNEXEC_PLUGIN ++KERNEXEC_PLUGIN := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so ++endif ++ifdef CONFIG_CHECKER_PLUGIN ++ifeq ($(call cc-ifversion, -ge, 0406, y), y) ++CHECKER_PLUGIN := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN ++endif ++endif ++GCC_PLUGINS := $(CONSTIFY_PLUGIN) $(STACKLEAK_PLUGIN) $(KALLOCSTAT_PLUGIN) $(KERNEXEC_PLUGIN) $(CHECKER_PLUGIN) ++export CONSTIFY_PLUGIN STACKLEAK_PLUGIN KERNEXEC_PLUGIN CHECKER_PLUGIN ++gcc-plugins: ++ $(Q)$(MAKE) $(build)=tools/gcc ++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.)) ++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 ++ + include $(srctree)/arch/$(SRCARCH)/Makefile + + ifneq ($(CONFIG_FRAME_WARN),0) +@@ -708,7 +740,7 @@ 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 +964,7 @@ vmlinux.o: $(modpost-init) $(vmlinux-mai + + # 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) + $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; + + # Handle descending into subdirectories listed in $(vmlinux-dirs) +@@ -941,7 +974,7 @@ $(sort $(vmlinux-init) $(vmlinux-main)) + # 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 +@@ -986,6 +1019,7 @@ prepare0: archprepare FORCE + $(Q)$(MAKE) $(build)=. missing-syscalls + + # All the preparing.. ++prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS),$(KBUILD_CFLAGS)) + prepare: prepare0 + + # Generate some files +@@ -1087,6 +1121,7 @@ all: modules + # using awk while concatenating to the final file. + + PHONY += modules ++modules: KBUILD_CFLAGS += $(GCC_PLUGINS) + 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.'; +@@ -1102,7 +1137,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modu + + # 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 +@@ -1198,7 +1233,7 @@ distclean: mrproper + @find $(srctree) $(RCS_FIND_IGNORE) \ + $ -name '*.orig' -o -name '*.rej' -o -name '*~' \ + -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ +- -o -name '.*.rej' -o -size 0 \ ++ -o -name '.*.rej' -o -name '*.so' -o -size 0 \ + -o -name '*%' -o -name '.*.cmd' -o -name 'core' $ \ + -type f -print | xargs rm -f + +@@ -1360,6 +1395,7 @@ PHONY += $(module-dirs) modules + $(module-dirs): crmodverdir $(objtree)/Module.symvers + $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) + ++modules: KBUILD_CFLAGS += $(GCC_PLUGINS) + modules: $(module-dirs) + @$(kecho) ' Building modules, stage 2.'; + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost +@@ -1486,17 +1522,19 @@ else + target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) + endif + +-%.s: %.c prepare scripts FORCE ++%.s: KBUILD_CFLAGS += $(GCC_PLUGINS) ++%.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) ++%.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 $@) +@@ -1506,11 +1544,13 @@ endif + $(cmd_crmodverdir) + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) +-%/: prepare scripts FORCE ++%/: KBUILD_CFLAGS += $(GCC_PLUGINS) ++%/: 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) ++%.ko: gcc-plugins prepare scripts FORCE + $(cmd_crmodverdir) + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) $(@:.ko=.o) +diff -urNp linux-3.1.1/mm/filemap.c linux-3.1.1/mm/filemap.c +--- linux-3.1.1/mm/filemap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/filemap.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1784,7 +1784,7 @@ int generic_file_mmap(struct file * file + 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; +@@ -2190,6 +2190,7 @@ inline int generic_write_checks(struct f + *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 -urNp linux-3.1.1/mm/fremap.c linux-3.1.1/mm/fremap.c +--- linux-3.1.1/mm/fremap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/fremap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -156,6 +156,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsign + 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 -urNp linux-3.1.1/mm/highmem.c linux-3.1.1/mm/highmem.c +--- linux-3.1.1/mm/highmem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/highmem.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/mm/huge_memory.c linux-3.1.1/mm/huge_memory.c +--- linux-3.1.1/mm/huge_memory.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/huge_memory.c 2011-11-16 18:39:08.000000000 -0500 +@@ -702,7 +702,7 @@ 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 -urNp linux-3.1.1/mm/hugetlb.c linux-3.1.1/mm/hugetlb.c +--- linux-3.1.1/mm/hugetlb.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/hugetlb.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2346,6 +2346,27 @@ static int unmap_ref_private(struct mm_s + 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. + */ +@@ -2447,6 +2468,11 @@ 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, +@@ -2598,6 +2624,10 @@ 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); +@@ -2627,6 +2657,10 @@ int hugetlb_fault(struct mm_struct *mm, + static DEFINE_MUTEX(hugetlb_instantiation_mutex); + struct hstate *h = hstate_vma(vma); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + ptep = huge_pte_offset(mm, address); + if (ptep) { + entry = huge_ptep_get(ptep); +@@ -2638,6 +2672,26 @@ int hugetlb_fault(struct mm_struct *mm, + 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 -urNp linux-3.1.1/mm/internal.h linux-3.1.1/mm/internal.h +--- linux-3.1.1/mm/internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/internal.h 2011-11-16 18:39:08.000000000 -0500 +@@ -95,6 +95,7 @@ extern void putback_lru_page(struct 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 -urNp linux-3.1.1/mm/Kconfig linux-3.1.1/mm/Kconfig +--- linux-3.1.1/mm/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/Kconfig 2011-11-17 18:57:00.000000000 -0500 +@@ -238,10 +238,10 @@ 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. +diff -urNp linux-3.1.1/mm/kmemleak.c linux-3.1.1/mm/kmemleak.c +--- linux-3.1.1/mm/kmemleak.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/kmemleak.c 2011-11-16 18:40:44.000000000 -0500 +@@ -357,7 +357,7 @@ static void print_unreferenced(struct se + + 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 -urNp linux-3.1.1/mm/maccess.c linux-3.1.1/mm/maccess.c +--- linux-3.1.1/mm/maccess.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/maccess.c 2011-11-16 18:39:08.000000000 -0500 +@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, cons + 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, con + + 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 -urNp linux-3.1.1/mm/madvise.c linux-3.1.1/mm/madvise.c +--- linux-3.1.1/mm/madvise.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/madvise.c 2011-11-16 18:39:08.000000000 -0500 +@@ -45,6 +45,10 @@ static long madvise_behavior(struct vm_a + 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; +@@ -110,6 +114,13 @@ 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: +@@ -168,6 +179,11 @@ static long madvise_dontneed(struct vm_a + 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; +@@ -180,6 +196,21 @@ static long madvise_dontneed(struct vm_a + 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; + } + +@@ -376,6 +407,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, + 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 -urNp linux-3.1.1/mm/memory.c linux-3.1.1/mm/memory.c +--- linux-3.1.1/mm/memory.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/memory.c 2011-11-16 18:39:08.000000000 -0500 +@@ -457,8 +457,12 @@ static inline void free_pmd_range(struct + 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, +@@ -489,9 +493,12 @@ static inline void free_pud_range(struct + 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 ++ + } + + /* +@@ -1566,12 +1573,6 @@ 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 +@@ -1644,10 +1645,10 @@ int __get_user_pages(struct task_struct + (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; +@@ -1695,7 +1696,7 @@ int __get_user_pages(struct task_struct + 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; +@@ -1722,11 +1723,6 @@ int __get_user_pages(struct task_struct + 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) +@@ -1800,7 +1796,7 @@ next_page: + start += PAGE_SIZE; + nr_pages--; + } while (nr_pages && start < vma->vm_end); +- } while (nr_pages); ++ } + return i; + } + EXPORT_SYMBOL(__get_user_pages); +@@ -2007,6 +2003,10 @@ static int insert_page(struct vm_area_st + 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; +@@ -2041,10 +2041,22 @@ 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); + } +@@ -2130,6 +2142,7 @@ int vm_insert_mixed(struct vm_area_struc + 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; +@@ -2445,6 +2458,186 @@ static inline void cow_user_page(struct + 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 +@@ -2656,6 +2849,12 @@ 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); +@@ -2707,6 +2906,10 @@ 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; +@@ -2986,6 +3189,11 @@ static int do_swap_page(struct mm_struct + 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) { + /* +@@ -3009,6 +3217,11 @@ static int do_swap_page(struct mm_struct + + /* 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: +@@ -3028,40 +3241,6 @@ 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. +@@ -3070,27 +3249,23 @@ static int do_anonymous_page(struct mm_s + 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); +@@ -3109,6 +3284,11 @@ static int do_anonymous_page(struct mm_s + 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: +@@ -3116,6 +3296,12 @@ 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; +@@ -3259,6 +3445,12 @@ static int __do_fault(struct mm_struct * + */ + /* 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) +@@ -3278,6 +3470,14 @@ static int __do_fault(struct mm_struct * + + /* 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); +@@ -3431,6 +3631,12 @@ int handle_pte_fault(struct mm_struct *m + 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; +@@ -3447,6 +3653,10 @@ int handle_mm_fault(struct mm_struct *mm + 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); +@@ -3458,6 +3668,34 @@ int handle_mm_fault(struct mm_struct *mm + 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) +@@ -3487,7 +3725,7 @@ int handle_mm_fault(struct mm_struct *mm + * 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))) +@@ -3591,7 +3829,7 @@ 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); + /* + * Make sure the vDSO gets into every core dump. + * Dumping its contents makes post-mortem fully interpretable later +diff -urNp linux-3.1.1/mm/memory-failure.c linux-3.1.1/mm/memory-failure.c +--- linux-3.1.1/mm/memory-failure.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/memory-failure.c 2011-11-16 18:39:08.000000000 -0500 +@@ -60,7 +60,7 @@ int sysctl_memory_failure_early_kill __r + + 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) + +@@ -201,7 +201,7 @@ static int kill_proc_ao(struct task_stru + si.si_signo = SIGBUS; + si.si_errno = 0; + si.si_code = BUS_MCEERR_AO; +- si.si_addr = (void *)addr; ++ si.si_addr = (void __user *)addr; + #ifdef __ARCH_SI_TRAPNO + si.si_trapno = trapno; + #endif +@@ -1009,7 +1009,7 @@ int __memory_failure(unsigned long pfn, + } + + 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. +@@ -1039,7 +1039,7 @@ int __memory_failure(unsigned long pfn, + 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); +@@ -1097,7 +1097,7 @@ int __memory_failure(unsigned long pfn, + } + 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; +@@ -1314,7 +1314,7 @@ 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; + } +@@ -1328,7 +1328,7 @@ 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); +@@ -1441,7 +1441,7 @@ static int soft_offline_huge_page(struct + } + 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 */ +@@ -1572,7 +1572,7 @@ int soft_offline_page(struct page *page, + 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 -urNp linux-3.1.1/mm/mempolicy.c linux-3.1.1/mm/mempolicy.c +--- linux-3.1.1/mm/mempolicy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/mempolicy.c 2011-11-16 18:40:44.000000000 -0500 +@@ -639,6 +639,10 @@ static int mbind_range(struct mm_struct + unsigned long vmstart; + unsigned long vmend; + ++#ifdef CONFIG_PAX_SEGMEXEC ++ struct vm_area_struct *vma_m; ++#endif ++ + vma = find_vma_prev(mm, start, &prev); + if (!vma || vma->vm_start > start) + return -EFAULT; +@@ -669,6 +673,16 @@ static int mbind_range(struct mm_struct + err = policy_vma(vma, new_pol); + if (err) + goto out; ++ ++#ifdef CONFIG_PAX_SEGMEXEC ++ vma_m = pax_find_mirror_vma(vma); ++ if (vma_m) { ++ err = policy_vma(vma_m, new_pol); ++ if (err) ++ goto out; ++ } ++#endif ++ + } + + out: +@@ -1102,6 +1116,17 @@ static long do_mbind(unsigned long start + + 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; + +@@ -1320,6 +1345,14 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pi + if (!mm) + goto out; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (mm != current->mm && ++ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { ++ err = -EPERM; ++ goto out; ++ } ++#endif ++ + /* + * Check if this process has the right to modify the specified + * process. The right exists if the process has administrative +@@ -1329,8 +1362,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pi + rcu_read_lock(); + 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; +diff -urNp linux-3.1.1/mm/migrate.c linux-3.1.1/mm/migrate.c +--- linux-3.1.1/mm/migrate.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/migrate.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1124,6 +1124,8 @@ static int do_pages_move(struct mm_struc + unsigned long chunk_start; + int err; + ++ pax_track_stack(); ++ + task_nodes = cpuset_mems_allowed(task); + + err = -ENOMEM; +@@ -1308,6 +1310,14 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, + if (!mm) + return -EINVAL; + ++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP ++ if (mm != current->mm && ++ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) { ++ err = -EPERM; ++ goto out; ++ } ++#endif ++ + /* + * Check if this process has the right to modify the specified + * process. The right exists if the process has administrative +@@ -1317,8 +1327,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, + rcu_read_lock(); + 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; +diff -urNp linux-3.1.1/mm/mlock.c linux-3.1.1/mm/mlock.c +--- linux-3.1.1/mm/mlock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/mlock.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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/module.h> + #include <linux/rmap.h> +@@ -377,6 +378,9 @@ static int do_mlock(unsigned long start, + return -EINVAL; + if (end == start) + return 0; ++ if (end > TASK_SIZE) ++ return -EINVAL; ++ + vma = find_vma_prev(current->mm, start, &prev); + if (!vma || vma->vm_start > start) + return -ENOMEM; +@@ -387,6 +391,11 @@ static int do_mlock(unsigned long start, + 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; +@@ -492,6 +501,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st + 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); +@@ -515,17 +525,23 @@ SYSCALL_DEFINE2(munlock, unsigned long, + 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; +@@ -557,6 +573,7 @@ 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 -urNp linux-3.1.1/mm/mmap.c linux-3.1.1/mm/mmap.c +--- linux-3.1.1/mm/mmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/mmap.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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_struc + * 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 *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) { +@@ -272,6 +293,7 @@ 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; +@@ -689,6 +711,12 @@ 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) +@@ -708,6 +736,12 @@ 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; +@@ -750,13 +784,20 @@ can_vma_merge_after(struct vm_area_struc + 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. +@@ -772,6 +813,15 @@ struct vm_area_struct *vma_merge(struct + 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? + */ +@@ -791,9 +841,24 @@ struct vm_area_struct *vma_merge(struct + /* 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); +@@ -807,12 +872,27 @@ struct vm_area_struct *vma_merge(struct + 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); +@@ -921,14 +1001,11 @@ 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; +@@ -955,7 +1032,7 @@ unsigned long do_mmap_pgoff(struct file + * (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; + +@@ -981,7 +1058,7 @@ unsigned long do_mmap_pgoff(struct file + /* 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; + +@@ -992,6 +1069,36 @@ unsigned long do_mmap_pgoff(struct file + 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; +@@ -1003,6 +1110,7 @@ unsigned long do_mmap_pgoff(struct file + 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; + } +@@ -1073,6 +1181,9 @@ unsigned long do_mmap_pgoff(struct file + if (error) + return error; + ++ if (!gr_acl_handle_mmap(file, prot)) ++ return -EACCES; ++ + return mmap_region(file, addr, len, flags, vm_flags, pgoff); + } + EXPORT_SYMBOL(do_mmap_pgoff); +@@ -1153,7 +1264,7 @@ int vma_wants_writenotify(struct vm_area + 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? */ +@@ -1202,14 +1313,24 @@ unsigned long mmap_region(struct file *f + 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. */ +@@ -1258,6 +1379,16 @@ 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; +@@ -1281,6 +1412,19 @@ 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); + +@@ -1316,6 +1460,11 @@ 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); +@@ -1324,6 +1473,7 @@ 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); +@@ -1341,6 +1491,12 @@ 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) +@@ -1348,6 +1504,44 @@ 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. + * +@@ -1374,18 +1568,23 @@ arch_get_unmapped_area(struct file *filp + 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: +@@ -1396,34 +1595,40 @@ 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; + mm->cached_hole_size = ~0UL; + } +@@ -1441,7 +1646,7 @@ arch_get_unmapped_area_topdown(struct fi + { + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; +- unsigned long addr = addr0; ++ unsigned long base = mm->mmap_base, addr = addr0; + + /* requested length too big for entire address space */ + if (len > TASK_SIZE) +@@ -1450,13 +1655,18 @@ arch_get_unmapped_area_topdown(struct fi + 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 */ +@@ -1471,7 +1681,7 @@ arch_get_unmapped_area_topdown(struct fi + /* make sure it can fit in the remaining address space */ + if (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); + } +@@ -1488,7 +1698,7 @@ arch_get_unmapped_area_topdown(struct fi + * 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); + +@@ -1497,8 +1707,8 @@ arch_get_unmapped_area_topdown(struct fi + 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)); + + bottomup: + /* +@@ -1507,13 +1717,21 @@ 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; +@@ -1522,6 +1740,12 @@ bottomup: + + 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? + */ +@@ -1529,8 +1753,10 @@ void arch_unmap_area_topdown(struct mm_s + 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 +@@ -1638,6 +1864,28 @@ out: + return prev ? prev->vm_next : 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 +@@ -1654,6 +1902,7 @@ static int acct_stack_growth(struct vm_a + return -ENOMEM; + + /* Stack limit test */ ++ gr_learn_resource(current, RLIMIT_STACK, size, 1); + if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) + return -ENOMEM; + +@@ -1664,6 +1913,7 @@ static int acct_stack_growth(struct vm_a + 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; + } +@@ -1694,37 +1944,48 @@ static int acct_stack_growth(struct vm_a + * 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; +@@ -1739,6 +2000,8 @@ int expand_upwards(struct vm_area_struct + } + } + } ++ if (locknext) ++ vma_unlock_anon_vma(vma->vm_next); + vma_unlock_anon_vma(vma); + khugepaged_enter_vma_merge(vma); + return error; +@@ -1752,6 +2015,8 @@ int expand_downwards(struct vm_area_stru + unsigned long address) + { + int error; ++ bool lockprev = false; ++ struct vm_area_struct *prev; + + /* + * We must make sure the anon_vma is allocated +@@ -1765,6 +2030,15 @@ int expand_downwards(struct vm_area_stru + 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); + + /* +@@ -1774,9 +2048,17 @@ int expand_downwards(struct vm_area_stru + */ + + /* 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; + +@@ -1786,11 +2068,22 @@ int expand_downwards(struct vm_area_stru + 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; + } +@@ -1860,6 +2153,13 @@ static void remove_vma_list(struct mm_st + 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); +@@ -1905,6 +2205,16 @@ detach_vmas_to_be_unmapped(struct mm_str + 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; +@@ -1933,14 +2243,33 @@ static int __split_vma(struct mm_struct + 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; + +@@ -1953,6 +2282,22 @@ static int __split_vma(struct mm_struct + 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); +@@ -1978,6 +2323,42 @@ static int __split_vma(struct mm_struct + 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; +@@ -1990,10 +2371,18 @@ static int __split_vma(struct mm_struct + 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; +@@ -2006,6 +2395,15 @@ static int __split_vma(struct mm_struct + 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; + +@@ -2017,11 +2415,30 @@ int split_vma(struct mm_struct *mm, stru + * 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; + +@@ -2096,6 +2513,8 @@ int do_munmap(struct mm_struct *mm, unsi + /* Fix up all other VM information */ + remove_vma_list(mm, vma); + ++ track_exec_limit(mm, start, end, 0UL); ++ + return 0; + } + +@@ -2108,22 +2527,18 @@ SYSCALL_DEFINE2(munmap, unsigned long, a + + profile_munmap(addr); + ++#ifdef CONFIG_PAX_SEGMEXEC ++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ++ (len > SEGMEXEC_TASK_SIZE || addr > SEGMEXEC_TASK_SIZE-len)) ++ return -EINVAL; ++#endif ++ + down_write(&mm->mmap_sem); + ret = do_munmap(mm, addr, len); + up_write(&mm->mmap_sem); + return ret; + } + +-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 +@@ -2137,6 +2552,7 @@ unsigned long do_brk(unsigned long addr, + struct rb_node ** rb_link, * rb_parent; + pgoff_t pgoff = addr >> PAGE_SHIFT; + int error; ++ unsigned long charged; + + len = PAGE_ALIGN(len); + if (!len) +@@ -2148,16 +2564,30 @@ unsigned long do_brk(unsigned long addr, + + 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; +@@ -2174,22 +2604,22 @@ unsigned long do_brk(unsigned long addr, + /* + * 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(len >> PAGE_SHIFT)) ++ if (security_vm_enough_memory(charged)) + return -ENOMEM; + + /* Can we just expand an old private anonymous mapping? */ +@@ -2203,7 +2633,7 @@ unsigned long do_brk(unsigned long addr, + */ + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); + if (!vma) { +- vm_unacct_memory(len >> PAGE_SHIFT); ++ vm_unacct_memory(charged); + return -ENOMEM; + } + +@@ -2217,11 +2647,12 @@ unsigned long do_brk(unsigned long addr, + 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; + } + +@@ -2268,8 +2699,10 @@ 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); + } +@@ -2283,6 +2716,13 @@ int insert_vm_struct(struct mm_struct * + 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 +@@ -2305,7 +2745,22 @@ int insert_vm_struct(struct mm_struct * + 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; + } + +@@ -2323,6 +2778,8 @@ struct vm_area_struct *copy_vma(struct v + struct rb_node **rb_link, *rb_parent; + struct mempolicy *pol; + ++ 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. +@@ -2373,6 +2830,39 @@ struct vm_area_struct *copy_vma(struct v + 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 +@@ -2383,7 +2873,7 @@ int may_expand_vm(struct mm_struct *mm, + unsigned long lim; + + lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT; +- ++ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1); + if (cur + npages > lim) + return 0; + return 1; +@@ -2454,6 +2944,22 @@ int install_special_mapping(struct mm_st + 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 -urNp linux-3.1.1/mm/mprotect.c linux-3.1.1/mm/mprotect.c +--- linux-3.1.1/mm/mprotect.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/mprotect.c 2011-11-16 18:40:44.000000000 -0500 +@@ -23,10 +23,16 @@ + #include <linux/mmu_notifier.h> + #include <linux/migrate.h> + #include <linux/perf_event.h> ++ ++#ifdef CONFIG_PAX_MPROTECT ++#include <linux/elf.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 +147,48 @@ static void change_protection(struct vm_ + 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 +201,29 @@ mprotect_fixup(struct vm_area_struct *vm + 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 +240,42 @@ mprotect_fixup(struct vm_area_struct *vm + } + } + ++#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 +306,21 @@ 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 +362,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, + 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 +380,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, + /* + * 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); +@@ -287,6 +412,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, + 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; + +@@ -296,6 +426,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, + + /* 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; + } +@@ -310,6 +448,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, + 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 -urNp linux-3.1.1/mm/mremap.c linux-3.1.1/mm/mremap.c +--- linux-3.1.1/mm/mremap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/mremap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -113,6 +113,12 @@ static void move_ptes(struct vm_area_str + continue; + pte = ptep_clear_flush(vma, 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); + } + +@@ -272,6 +278,11 @@ static struct vm_area_struct *vma_to_res + 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; +@@ -328,20 +339,25 @@ static unsigned long mremap_to(unsigned + 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); +@@ -413,6 +429,7 @@ unsigned long do_mremap(unsigned long ad + 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; +@@ -431,6 +448,17 @@ unsigned long do_mremap(unsigned long ad + 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); +@@ -480,6 +508,7 @@ unsigned long do_mremap(unsigned long ad + addr + new_len); + } + ret = addr; ++ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags); + goto out; + } + } +@@ -506,7 +535,13 @@ unsigned long do_mremap(unsigned long ad + 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 -urNp linux-3.1.1/mm/nobootmem.c linux-3.1.1/mm/nobootmem.c +--- linux-3.1.1/mm/nobootmem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/nobootmem.c 2011-11-16 18:39:08.000000000 -0500 +@@ -110,19 +110,30 @@ static void __init __free_pages_memory(u + unsigned long __init free_all_memory_core_early(int nodeid) + { + int i; +- u64 start, end; ++ u64 start, end, startrange, endrange; + unsigned long count = 0; +- struct range *range = NULL; ++ struct range *range = NULL, rangerange = { 0, 0 }; + int nr_range; + + nr_range = get_free_all_memory_range(&range, nodeid); ++ startrange = __pa(range) >> PAGE_SHIFT; ++ endrange = (__pa(range + nr_range) - 1) >> PAGE_SHIFT; + + for (i = 0; i < nr_range; i++) { + start = range[i].start; + end = range[i].end; ++ if (start <= endrange && startrange < end) { ++ BUG_ON(rangerange.start | rangerange.end); ++ rangerange = range[i]; ++ continue; ++ } + count += end - start; + __free_pages_memory(start, end); + } ++ start = rangerange.start; ++ end = rangerange.end; ++ count += end - start; ++ __free_pages_memory(start, end); + + return count; + } +diff -urNp linux-3.1.1/mm/nommu.c linux-3.1.1/mm/nommu.c +--- linux-3.1.1/mm/nommu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/nommu.c 2011-11-16 18:39:08.000000000 -0500 +@@ -62,7 +62,6 @@ int sysctl_overcommit_memory = OVERCOMMI + 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; + +@@ -825,15 +824,6 @@ struct vm_area_struct *find_vma(struct m + 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 + */ +@@ -1553,6 +1543,7 @@ int split_vma(struct mm_struct *mm, stru + + /* 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 -urNp linux-3.1.1/mm/page_alloc.c linux-3.1.1/mm/page_alloc.c +--- linux-3.1.1/mm/page_alloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/page_alloc.c 2011-11-16 18:40:44.000000000 -0500 +@@ -340,7 +340,7 @@ 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)); + } +@@ -653,6 +653,10 @@ static bool free_pages_prepare(struct pa + int i; + int bad = 0; + ++#ifdef CONFIG_PAX_MEMORY_SANITIZE ++ unsigned long index = 1UL << order; ++#endif ++ + trace_mm_page_free_direct(page, order); + kmemcheck_free_shadow(page, order); + +@@ -668,6 +672,12 @@ static bool free_pages_prepare(struct pa + 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); + +@@ -783,8 +793,10 @@ static int prep_new_page(struct page *pa + 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); +@@ -2539,6 +2551,8 @@ void show_free_areas(unsigned int filter + int cpu; + struct zone *zone; + ++ pax_track_stack(); ++ + for_each_populated_zone(zone) { + if (skip_free_areas_node(filter, zone_to_nid(zone))) + continue; +@@ -3350,7 +3364,13 @@ static int pageblock_is_reserved(unsigne + 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 -urNp linux-3.1.1/mm/percpu.c linux-3.1.1/mm/percpu.c +--- linux-3.1.1/mm/percpu.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/percpu.c 2011-11-16 18:39:08.000000000 -0500 +@@ -121,7 +121,7 @@ static unsigned int pcpu_first_unit_cpu + static unsigned int pcpu_last_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 -urNp linux-3.1.1/mm/rmap.c linux-3.1.1/mm/rmap.c +--- linux-3.1.1/mm/rmap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/rmap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -152,6 +152,10 @@ int anon_vma_prepare(struct vm_area_stru + 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; +@@ -161,6 +165,12 @@ int anon_vma_prepare(struct vm_area_stru + 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) { +@@ -174,6 +184,21 @@ int anon_vma_prepare(struct vm_area_stru + /* 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; ++ avc_m->anon_vma = anon_vma; ++ avc_m->vma = vma; ++ list_add(&avc_m->same_vma, &vma_m->anon_vma_chain); ++ list_add(&avc_m->same_anon_vma, &anon_vma->head); ++ avc_m = NULL; ++ } ++#endif ++ + vma->anon_vma = anon_vma; + avc->anon_vma = anon_vma; + avc->vma = vma; +@@ -187,12 +212,24 @@ int anon_vma_prepare(struct vm_area_stru + + 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; +@@ -243,7 +280,7 @@ static void anon_vma_chain_link(struct v + * 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; +@@ -276,7 +313,7 @@ int anon_vma_clone(struct vm_area_struct + * 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 -urNp linux-3.1.1/mm/shmem.c linux-3.1.1/mm/shmem.c +--- linux-3.1.1/mm/shmem.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/shmem.c 2011-11-16 19:28:28.000000000 -0500 +@@ -31,7 +31,7 @@ + #include <linux/module.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 */ +@@ -769,6 +769,8 @@ static struct page *shmem_swapin(swp_ent + struct mempolicy mpol, *spol; + struct vm_area_struct pvma; + ++ pax_track_stack(); ++ + spol = mpol_cond_copy(&mpol, + mpol_shared_policy_lookup(&info->policy, index)); + +@@ -2149,8 +2151,7 @@ int shmem_fill_super(struct super_block + 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 -urNp linux-3.1.1/mm/slab.c linux-3.1.1/mm/slab.c +--- linux-3.1.1/mm/slab.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/slab.c 2011-11-16 18:40:44.000000000 -0500 +@@ -151,7 +151,7 @@ + + /* 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 | \ +@@ -159,7 +159,7 @@ + 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 | \ +@@ -288,7 +288,7 @@ 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) +@@ -389,10 +389,10 @@ static void kmem_list3_init(struct kmem_ + 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) +@@ -538,7 +538,7 @@ static inline void *index_to_obj(struct + * 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); +@@ -564,7 +564,7 @@ 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 + }; + +@@ -1571,7 +1571,7 @@ 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) { +@@ -1579,7 +1579,7 @@ 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); + } + +@@ -1597,7 +1597,7 @@ 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 +@@ -4324,10 +4324,10 @@ static int s_show(struct seq_file *m, vo + } + /* 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); +@@ -4584,15 +4584,70 @@ static const struct file_operations proc + + static int __init slab_proc_init(void) + { +- proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations); ++ mode_t gr_mode = S_IRUGO; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ gr_mode = S_IRUSR; ++#endif ++ ++ proc_create("slabinfo",S_IWUSR|gr_mode,NULL,&proc_slabinfo_operations); + #ifdef CONFIG_DEBUG_SLAB_LEAK +- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); ++ proc_create("slab_allocators", gr_mode, 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 -urNp linux-3.1.1/mm/slob.c linux-3.1.1/mm/slob.c +--- linux-3.1.1/mm/slob.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/slob.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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(struc + + 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_ + /* + * 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, i + if (!page) + return NULL; + ++ set_slob_page(page); + return page_address(page); + } + +@@ -370,11 +373,11 @@ static void *slob_alloc(size_t size, gfp + 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 + + 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 |= __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(con + { + 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_ + + 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_hea + + 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 -urNp linux-3.1.1/mm/slub.c linux-3.1.1/mm/slub.c +--- linux-3.1.1/mm/slub.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/slub.c 2011-11-16 19:27:25.000000000 -0500 +@@ -208,7 +208,7 @@ 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 *); +@@ -556,7 +556,7 @@ static void print_track(const char *s, s + 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 + { +@@ -2456,6 +2456,8 @@ void kmem_cache_free(struct kmem_cache * + + page = virt_to_head_page(x); + ++ BUG_ON(!PageSlab(page)); ++ + slab_free(s, page, x, _RET_IP_); + + trace_kmem_cache_free(_RET_IP_, x); +@@ -2489,7 +2491,7 @@ 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. +@@ -2912,7 +2914,7 @@ static int kmem_cache_open(struct kmem_c + * list to avoid pounding the page allocator excessively. + */ + set_min_partial(s, ilog2(s->size)); +- s->refcount = 1; ++ atomic_set(&s->refcount, 1); + #ifdef CONFIG_NUMA + s->remote_node_defrag_ratio = 1000; + #endif +@@ -3017,8 +3019,7 @@ static inline int kmem_cache_close(struc + 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); + if (kmem_cache_close(s)) { + printk(KERN_ERR "SLUB %s: %s called for cache that " +@@ -3228,6 +3229,50 @@ void *__kmalloc_node(size_t size, gfp_t + 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; +@@ -3502,7 +3547,7 @@ static void __init kmem_cache_bootstrap_ + 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); +@@ -3619,17 +3664,17 @@ 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++; + } + +@@ -3697,7 +3742,7 @@ static int slab_unmergeable(struct kmem_ + /* + * 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; +@@ -3756,7 +3801,7 @@ struct kmem_cache *kmem_cache_create(con + 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. +@@ -3765,7 +3810,7 @@ struct kmem_cache *kmem_cache_create(con + 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); +@@ -3893,7 +3938,7 @@ void *__kmalloc_node_track_caller(size_t + } + #endif + +-#ifdef CONFIG_SYSFS ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int count_inuse(struct page *page) + { + return page->inuse; +@@ -4280,12 +4325,12 @@ 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 */ +@@ -4495,7 +4540,7 @@ 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); + +@@ -5025,6 +5070,7 @@ static char *create_unique_id(struct kme + return name; + } + ++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD) + static int sysfs_slab_add(struct kmem_cache *s) + { + int err; +@@ -5087,6 +5133,7 @@ static void sysfs_slab_remove(struct kme + kobject_del(&s->kobj); + kobject_put(&s->kobj); + } ++#endif + + /* + * Need to buffer aliases during bootup until sysfs becomes +@@ -5100,6 +5147,7 @@ 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; +@@ -5122,6 +5170,7 @@ static int sysfs_slab_alias(struct kmem_ + alias_list = al; + return 0; + } ++#endif + + static int __init slab_sysfs_init(void) + { +@@ -5257,7 +5306,13 @@ static const struct file_operations proc + + static int __init slab_proc_init(void) + { +- proc_create("slabinfo", S_IRUGO, NULL, &proc_slabinfo_operations); ++ mode_t gr_mode = S_IRUGO; ++ ++#ifdef CONFIG_GRKERNSEC_PROC_ADD ++ gr_mode = S_IRUSR; ++#endif ++ ++ proc_create("slabinfo", gr_mode, NULL, &proc_slabinfo_operations); + return 0; + } + module_init(slab_proc_init); +diff -urNp linux-3.1.1/mm/swap.c linux-3.1.1/mm/swap.c +--- linux-3.1.1/mm/swap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/swap.c 2011-11-16 18:39:08.000000000 -0500 +@@ -31,6 +31,7 @@ + #include <linux/backing-dev.h> + #include <linux/memcontrol.h> + #include <linux/gfp.h> ++#include <linux/hugetlb.h> + + #include "internal.h" + +@@ -71,6 +72,8 @@ static void __put_compound_page(struct p + + __page_cache_release(page); + dtor = get_compound_page_dtor(page); ++ if (!PageHuge(page)) ++ BUG_ON(dtor != free_compound_page); + (*dtor)(page); + } + +diff -urNp linux-3.1.1/mm/swapfile.c linux-3.1.1/mm/swapfile.c +--- linux-3.1.1/mm/swapfile.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/swapfile.c 2011-11-16 18:39:08.000000000 -0500 +@@ -62,7 +62,7 @@ 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 __us + } + 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 * + + 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 *inod + 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; + } + +@@ -2124,7 +2124,7 @@ SYSCALL_DEFINE2(swapon, const char __use + (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 -urNp linux-3.1.1/mm/util.c linux-3.1.1/mm/util.c +--- linux-3.1.1/mm/util.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/util.c 2011-11-16 18:39:08.000000000 -0500 +@@ -114,6 +114,7 @@ EXPORT_SYMBOL(memdup_user); + * allocated buffer. Use this if you don't want to free the buffer immediately + * like, for example, with RCU. + */ ++#undef __krealloc + void *__krealloc(const void *p, size_t new_size, gfp_t flags) + { + void *ret; +@@ -147,6 +148,7 @@ EXPORT_SYMBOL(__krealloc); + * behaves exactly like kmalloc(). If @size is 0 and @p is not a + * %NULL pointer, the object pointed to is freed. + */ ++#undef krealloc + void *krealloc(const void *p, size_t new_size, gfp_t flags) + { + void *ret; +@@ -243,6 +245,12 @@ void __vma_link_list(struct mm_struct *m + 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 -urNp linux-3.1.1/mm/vmalloc.c linux-3.1.1/mm/vmalloc.c +--- linux-3.1.1/mm/vmalloc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/vmalloc.c 2011-11-16 18:40:44.000000000 -0500 +@@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, + + 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, un + 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, un + 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, +@@ -191,11 +216,20 @@ int is_vmalloc_or_module_addr(const void + * 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 + + 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; + +@@ -1294,6 +1334,16 @@ static struct vm_struct *__get_vm_area_n + 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); + +@@ -1526,6 +1576,11 @@ void *vmap(struct page **pages, unsigned + 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) +@@ -1627,6 +1682,13 @@ void *__vmalloc_node_range(unsigned long + if (!size || (size >> PAGE_SHIFT) > totalram_pages) + return NULL; + ++#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); + +@@ -1672,6 +1734,7 @@ static void *__vmalloc_node(unsigned lon + gfp_mask, prot, node, caller); + } + ++#undef __vmalloc + void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) + { + return __vmalloc_node(size, 1, gfp_mask, prot, -1, +@@ -1695,6 +1758,7 @@ static inline void *__vmalloc_node_flags + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ ++#undef vmalloc + void *vmalloc(unsigned long size) + { + return __vmalloc_node_flags(size, -1, GFP_KERNEL | __GFP_HIGHMEM); +@@ -1711,6 +1775,7 @@ EXPORT_SYMBOL(vmalloc); + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ ++#undef vzalloc + void *vzalloc(unsigned long size) + { + return __vmalloc_node_flags(size, -1, +@@ -1725,6 +1790,7 @@ EXPORT_SYMBOL(vzalloc); + * The resulting memory area is zeroed so it can be mapped to userspace + * without leaking data. + */ ++#undef vmalloc_user + void *vmalloc_user(unsigned long size) + { + struct vm_struct *area; +@@ -1752,6 +1818,7 @@ EXPORT_SYMBOL(vmalloc_user); + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ ++#undef vmalloc_node + void *vmalloc_node(unsigned long size, int node) + { + return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL, +@@ -1771,6 +1838,7 @@ EXPORT_SYMBOL(vmalloc_node); + * For tight control over page level allocator and protection flags + * use __vmalloc_node() instead. + */ ++#undef vzalloc_node + void *vzalloc_node(unsigned long size, int node) + { + return __vmalloc_node_flags(size, node, +@@ -1793,10 +1861,10 @@ EXPORT_SYMBOL(vzalloc_node); + * For tight control over page level allocator and protection flags + * use __vmalloc() instead. + */ +- ++#undef vmalloc_exec + 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)); + } + +@@ -1815,6 +1883,7 @@ void *vmalloc_exec(unsigned long size) + * Allocate enough 32bit PA addressable pages to cover @size from the + * page level allocator and map them into contiguous kernel virtual space. + */ ++#undef vmalloc_32 + void *vmalloc_32(unsigned long size) + { + return __vmalloc_node(size, 1, GFP_VMALLOC32, PAGE_KERNEL, +@@ -1829,6 +1898,7 @@ EXPORT_SYMBOL(vmalloc_32); + * The resulting memory area is 32bit addressable and zeroed so it can be + * mapped to userspace without leaking data. + */ ++#undef vmalloc_32_user + void *vmalloc_32_user(unsigned long size) + { + struct vm_struct *area; +@@ -2091,6 +2161,8 @@ int remap_vmalloc_range(struct vm_area_s + 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; + +diff -urNp linux-3.1.1/mm/vmstat.c linux-3.1.1/mm/vmstat.c +--- linux-3.1.1/mm/vmstat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/mm/vmstat.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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]; ++atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; + 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 +@@ -1207,10 +1207,20 @@ 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 -urNp linux-3.1.1/net/8021q/vlan.c linux-3.1.1/net/8021q/vlan.c +--- linux-3.1.1/net/8021q/vlan.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/8021q/vlan.c 2011-11-16 18:39:08.000000000 -0500 +@@ -588,8 +588,7 @@ static int vlan_ioctl_handler(struct net + 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 -urNp linux-3.1.1/net/9p/trans_fd.c linux-3.1.1/net/9p/trans_fd.c +--- linux-3.1.1/net/9p/trans_fd.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/9p/trans_fd.c 2011-11-16 18:39:08.000000000 -0500 +@@ -423,7 +423,7 @@ static int p9_fd_write(struct p9_client + 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 -urNp linux-3.1.1/net/9p/trans_virtio.c linux-3.1.1/net/9p/trans_virtio.c +--- linux-3.1.1/net/9p/trans_virtio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/9p/trans_virtio.c 2011-11-16 18:39:08.000000000 -0500 +@@ -327,7 +327,7 @@ req_retry_pinned: + } else { + char *pbuf; + if (req->tc->pubuf) +- pbuf = (__force char *) req->tc->pubuf; ++ pbuf = (char __force_kernel *) req->tc->pubuf; + else + pbuf = req->tc->pkbuf; + outp = pack_sg_list(chan->sg, out, VIRTQUEUE_NUM, pbuf, +@@ -357,7 +357,7 @@ req_retry_pinned: + } else { + char *pbuf; + if (req->tc->pubuf) +- pbuf = (__force char *) req->tc->pubuf; ++ pbuf = (char __force_kernel *) req->tc->pubuf; + else + pbuf = req->tc->pkbuf; + +diff -urNp linux-3.1.1/net/atm/atm_misc.c linux-3.1.1/net/atm/atm_misc.c +--- linux-3.1.1/net/atm/atm_misc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/atm_misc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int + 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_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 -urNp linux-3.1.1/net/atm/lec.h linux-3.1.1/net/atm/lec.h +--- linux-3.1.1/net/atm/lec.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/lec.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/atm/mpc.h linux-3.1.1/net/atm/mpc.h +--- linux-3.1.1/net/atm/mpc.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/mpc.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/atm/mpoa_caches.c linux-3.1.1/net/atm/mpoa_caches.c +--- linux-3.1.1/net/atm/mpoa_caches.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/mpoa_caches.c 2011-11-16 18:40:44.000000000 -0500 +@@ -255,6 +255,8 @@ static void check_resolving_entries(stru + struct timeval now; + struct k_message msg; + ++ pax_track_stack(); ++ + do_gettimeofday(&now); + + read_lock_bh(&client->ingress_lock); +diff -urNp linux-3.1.1/net/atm/proc.c linux-3.1.1/net/atm/proc.c +--- linux-3.1.1/net/atm/proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/proc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *s + 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 -urNp linux-3.1.1/net/atm/resources.c linux-3.1.1/net/atm/resources.c +--- linux-3.1.1/net/atm/resources.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/atm/resources.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_ + 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 -urNp linux-3.1.1/net/batman-adv/hard-interface.c linux-3.1.1/net/batman-adv/hard-interface.c +--- linux-3.1.1/net/batman-adv/hard-interface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/hard-interface.c 2011-11-16 18:39:08.000000000 -0500 +@@ -347,8 +347,8 @@ int hardif_enable_interface(struct hard_ + 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 -urNp linux-3.1.1/net/batman-adv/routing.c linux-3.1.1/net/batman-adv/routing.c +--- linux-3.1.1/net/batman-adv/routing.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/routing.c 2011-11-16 18:39:08.000000000 -0500 +@@ -656,7 +656,7 @@ void receive_bat_packet(const struct eth + 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_packet->flags & DIRECTLINK ? 1 : 0); + +diff -urNp linux-3.1.1/net/batman-adv/send.c linux-3.1.1/net/batman-adv/send.c +--- linux-3.1.1/net/batman-adv/send.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/send.c 2011-11-16 18:39:08.000000000 -0500 +@@ -326,7 +326,7 @@ void schedule_own_packet(struct hard_ifa + + /* change sequence number to network order */ + batman_packet->seqno = +- htonl((uint32_t)atomic_read(&hard_iface->seqno)); ++ htonl((uint32_t)atomic_read_unchecked(&hard_iface->seqno)); + + batman_packet->ttvn = atomic_read(&bat_priv->ttvn); + batman_packet->tt_crc = htons((uint16_t)atomic_read(&bat_priv->tt_crc)); +@@ -343,7 +343,7 @@ void schedule_own_packet(struct hard_ifa + else + batman_packet->gw_flags = NO_FLAGS; + +- atomic_inc(&hard_iface->seqno); ++ atomic_inc_unchecked(&hard_iface->seqno); + + slide_own_bcast_window(hard_iface); + send_time = own_send_time(bat_priv); +diff -urNp linux-3.1.1/net/batman-adv/soft-interface.c linux-3.1.1/net/batman-adv/soft-interface.c +--- linux-3.1.1/net/batman-adv/soft-interface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/soft-interface.c 2011-11-16 18:39:08.000000000 -0500 +@@ -632,7 +632,7 @@ static int interface_tx(struct sk_buff * + + /* 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); + +@@ -824,7 +824,7 @@ struct net_device *softif_create(const c + 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 -urNp linux-3.1.1/net/batman-adv/types.h linux-3.1.1/net/batman-adv/types.h +--- linux-3.1.1/net/batman-adv/types.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/types.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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; +@@ -153,7 +153,7 @@ 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; /* tranlation table version number */ +diff -urNp linux-3.1.1/net/batman-adv/unicast.c linux-3.1.1/net/batman-adv/unicast.c +--- linux-3.1.1/net/batman-adv/unicast.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/batman-adv/unicast.c 2011-11-16 18:39:08.000000000 -0500 +@@ -264,7 +264,7 @@ int frag_send_skb(struct sk_buff *skb, s + 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 -urNp linux-3.1.1/net/bluetooth/hci_conn.c linux-3.1.1/net/bluetooth/hci_conn.c +--- linux-3.1.1/net/bluetooth/hci_conn.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/bluetooth/hci_conn.c 2011-11-16 18:39:08.000000000 -0500 +@@ -218,7 +218,7 @@ void hci_le_start_enc(struct hci_conn *c + cp.handle = cpu_to_le16(conn->handle); + memcpy(cp.ltk, ltk, sizeof(cp.ltk)); + cp.ediv = ediv; +- memcpy(cp.rand, rand, sizeof(rand)); ++ memcpy(cp.rand, rand, sizeof(cp.rand)); + + hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp); + } +@@ -234,7 +234,7 @@ void hci_le_ltk_reply(struct hci_conn *c + 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 -urNp linux-3.1.1/net/bridge/br_multicast.c linux-3.1.1/net/bridge/br_multicast.c +--- linux-3.1.1/net/bridge/br_multicast.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/bridge/br_multicast.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1485,7 +1485,7 @@ static int br_multicast_ipv6_rcv(struct + nexthdr = ip6h->nexthdr; + offset = ipv6_skip_exthdr(skb, sizeof(*ip6h), &nexthdr); + +- if (offset < 0 || nexthdr != IPPROTO_ICMPV6) ++ if (nexthdr != IPPROTO_ICMPV6) + return 0; + + /* Okay, we found ICMPv6 header */ +diff -urNp linux-3.1.1/net/bridge/netfilter/ebtables.c linux-3.1.1/net/bridge/netfilter/ebtables.c +--- linux-3.1.1/net/bridge/netfilter/ebtables.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/bridge/netfilter/ebtables.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1513,7 +1513,7 @@ static int do_ebt_get_ctl(struct sock *s + 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; +@@ -1781,6 +1781,8 @@ static int compat_copy_everything_to_use + int ret; + void __user *pos; + ++ pax_track_stack(); ++ + memset(&tinfo, 0, sizeof(tinfo)); + + if (cmd == EBT_SO_GET_ENTRIES) { +diff -urNp linux-3.1.1/net/caif/caif_socket.c linux-3.1.1/net/caif/caif_socket.c +--- linux-3.1.1/net/caif/caif_socket.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/caif/caif_socket.c 2011-11-16 18:39:08.000000000 -0500 +@@ -48,19 +48,20 @@ static struct dentry *debugfsdir; + #ifdef CONFIG_DEBUG_FS + struct debug_fs_counter { + atomic_t caif_nr_socks; +- atomic_t caif_sock_create; +- atomic_t num_connect_req; +- atomic_t num_connect_resp; +- atomic_t num_connect_fail_resp; +- atomic_t num_disconnect; +- atomic_t num_remote_shutdown_ind; +- atomic_t num_tx_flow_off_ind; +- atomic_t num_tx_flow_on_ind; +- atomic_t num_rx_flow_off; +- atomic_t num_rx_flow_on; ++ atomic_unchecked_t caif_sock_create; ++ atomic_unchecked_t num_connect_req; ++ atomic_unchecked_t num_connect_resp; ++ atomic_unchecked_t num_connect_fail_resp; ++ atomic_unchecked_t num_disconnect; ++ atomic_unchecked_t num_remote_shutdown_ind; ++ atomic_unchecked_t num_tx_flow_off_ind; ++ atomic_unchecked_t num_tx_flow_on_ind; ++ atomic_unchecked_t num_rx_flow_off; ++ atomic_unchecked_t num_rx_flow_on; + }; + static struct debug_fs_counter cnt; + #define dbfs_atomic_inc(v) atomic_inc_return(v) ++#define dbfs_atomic_inc_unchecked(v) atomic_inc_return_unchecked(v) + #define dbfs_atomic_dec(v) atomic_dec_return(v) + #else + #define dbfs_atomic_inc(v) 0 +@@ -161,7 +162,7 @@ static int caif_queue_rcv_skb(struct soc + atomic_read(&cf_sk->sk.sk_rmem_alloc), + sk_rcvbuf_lowwater(cf_sk)); + set_rx_flow_off(cf_sk); +- dbfs_atomic_inc(&cnt.num_rx_flow_off); ++ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_off); + caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); + } + +@@ -172,7 +173,7 @@ static int caif_queue_rcv_skb(struct soc + set_rx_flow_off(cf_sk); + if (net_ratelimit()) + pr_debug("sending flow OFF due to rmem_schedule\n"); +- dbfs_atomic_inc(&cnt.num_rx_flow_off); ++ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_off); + caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ); + } + skb->dev = NULL; +@@ -233,14 +234,14 @@ static void caif_ctrl_cb(struct cflayer + switch (flow) { + case CAIF_CTRLCMD_FLOW_ON_IND: + /* OK from modem to start sending again */ +- dbfs_atomic_inc(&cnt.num_tx_flow_on_ind); ++ dbfs_atomic_inc_unchecked(&cnt.num_tx_flow_on_ind); + set_tx_flow_on(cf_sk); + cf_sk->sk.sk_state_change(&cf_sk->sk); + break; + + case CAIF_CTRLCMD_FLOW_OFF_IND: + /* Modem asks us to shut up */ +- dbfs_atomic_inc(&cnt.num_tx_flow_off_ind); ++ dbfs_atomic_inc_unchecked(&cnt.num_tx_flow_off_ind); + set_tx_flow_off(cf_sk); + cf_sk->sk.sk_state_change(&cf_sk->sk); + break; +@@ -249,7 +250,7 @@ static void caif_ctrl_cb(struct cflayer + /* We're now connected */ + caif_client_register_refcnt(&cf_sk->layer, + cfsk_hold, cfsk_put); +- dbfs_atomic_inc(&cnt.num_connect_resp); ++ dbfs_atomic_inc_unchecked(&cnt.num_connect_resp); + cf_sk->sk.sk_state = CAIF_CONNECTED; + set_tx_flow_on(cf_sk); + cf_sk->sk.sk_state_change(&cf_sk->sk); +@@ -263,7 +264,7 @@ static void caif_ctrl_cb(struct cflayer + + case CAIF_CTRLCMD_INIT_FAIL_RSP: + /* Connect request failed */ +- dbfs_atomic_inc(&cnt.num_connect_fail_resp); ++ dbfs_atomic_inc_unchecked(&cnt.num_connect_fail_resp); + cf_sk->sk.sk_err = ECONNREFUSED; + cf_sk->sk.sk_state = CAIF_DISCONNECTED; + cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; +@@ -277,7 +278,7 @@ static void caif_ctrl_cb(struct cflayer + + case CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND: + /* Modem has closed this connection, or device is down. */ +- dbfs_atomic_inc(&cnt.num_remote_shutdown_ind); ++ dbfs_atomic_inc_unchecked(&cnt.num_remote_shutdown_ind); + cf_sk->sk.sk_shutdown = SHUTDOWN_MASK; + cf_sk->sk.sk_err = ECONNRESET; + set_rx_flow_on(cf_sk); +@@ -297,7 +298,7 @@ static void caif_check_flow_release(stru + return; + + if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) { +- dbfs_atomic_inc(&cnt.num_rx_flow_on); ++ dbfs_atomic_inc_unchecked(&cnt.num_rx_flow_on); + set_rx_flow_on(cf_sk); + caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ); + } +@@ -854,7 +855,7 @@ static int caif_connect(struct socket *s + /*ifindex = id of the interface.*/ + cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if; + +- dbfs_atomic_inc(&cnt.num_connect_req); ++ dbfs_atomic_inc_unchecked(&cnt.num_connect_req); + cf_sk->layer.receive = caif_sktrecv_cb; + + err = caif_connect_client(sock_net(sk), &cf_sk->conn_req, +@@ -943,7 +944,7 @@ static int caif_release(struct socket *s + spin_unlock_bh(&sk->sk_receive_queue.lock); + sock->sk = NULL; + +- dbfs_atomic_inc(&cnt.num_disconnect); ++ dbfs_atomic_inc_unchecked(&cnt.num_disconnect); + + WARN_ON(IS_ERR(cf_sk->debugfs_socket_dir)); + if (cf_sk->debugfs_socket_dir != NULL) +@@ -1122,7 +1123,7 @@ static int caif_create(struct net *net, + cf_sk->conn_req.protocol = protocol; + /* Increase the number of sockets created. */ + dbfs_atomic_inc(&cnt.caif_nr_socks); +- num = dbfs_atomic_inc(&cnt.caif_sock_create); ++ num = dbfs_atomic_inc_unchecked(&cnt.caif_sock_create); + #ifdef CONFIG_DEBUG_FS + if (!IS_ERR(debugfsdir)) { + +diff -urNp linux-3.1.1/net/caif/cfctrl.c linux-3.1.1/net/caif/cfctrl.c +--- linux-3.1.1/net/caif/cfctrl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/caif/cfctrl.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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> +@@ -45,8 +46,8 @@ struct cflayer *cfctrl_create(void) + dev_info.id = 0xff; + memset(this, 0, sizeof(*this)); + 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; +@@ -132,8 +133,8 @@ static void cfctrl_insert_req(struct cfc + 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); + } +@@ -151,7 +152,7 @@ static struct cfctrl_request_info *cfctr + 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; +@@ -364,6 +365,7 @@ static int cfctrl_recv(struct cflayer *l + struct cfctrl *cfctrl = container_obj(layer); + struct cfctrl_request_info rsp, *req; + ++ pax_track_stack(); + + cfpkt_extr_head(pkt, &cmdrsp, 1); + cmd = cmdrsp & CFCTRL_CMD_MASK; +diff -urNp linux-3.1.1/net/compat.c linux-3.1.1/net/compat.c +--- linux-3.1.1/net/compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/compat.c 2011-11-16 18:39:08.000000000 -0500 +@@ -70,9 +70,9 @@ int get_compat_msghdr(struct msghdr *kms + __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; + } + +@@ -84,7 +84,7 @@ int verify_compat_iovec(struct msghdr *k + + 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) +@@ -95,7 +95,7 @@ int verify_compat_iovec(struct msghdr *k + 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; +@@ -115,20 +115,20 @@ int verify_compat_iovec(struct msghdr *k + + #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; +@@ -220,7 +220,7 @@ int put_cmsg_compat(struct msghdr *kmsg, + { + struct compat_timeval ctv; + struct compat_timespec cts[3]; +- 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; + +@@ -272,7 +272,7 @@ int put_cmsg_compat(struct msghdr *kmsg, + + 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; +@@ -369,7 +369,7 @@ static int do_set_sock_timeout(struct so + 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; +@@ -430,7 +430,7 @@ static int do_get_sock_timeout(struct so + 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) { +@@ -565,7 +565,7 @@ int compat_mc_setsockopt(struct sock *so + 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; +@@ -586,7 +586,7 @@ int compat_mc_setsockopt(struct sock *so + 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; +@@ -607,7 +607,7 @@ int compat_mc_setsockopt(struct sock *so + } + 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; + +@@ -645,7 +645,7 @@ int compat_mc_getsockopt(struct sock *so + 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 -urNp linux-3.1.1/net/core/datagram.c linux-3.1.1/net/core/datagram.c +--- linux-3.1.1/net/core/datagram.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/datagram.c 2011-11-16 18:39:08.000000000 -0500 +@@ -285,7 +285,7 @@ int skb_kill_datagram(struct sock *sk, s + } + + kfree_skb(skb); +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + sk_mem_reclaim_partial(sk); + + return err; +diff -urNp linux-3.1.1/net/core/dev.c linux-3.1.1/net/core/dev.c +--- linux-3.1.1/net/core/dev.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/dev.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1135,10 +1135,14 @@ void dev_load(struct net *net, const cha + 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); +@@ -1977,7 +1981,7 @@ static int illegal_highdma(struct net_de + + struct dev_gso_cb { + void (*destructor)(struct sk_buff *skb); +-}; ++} __no_const; + + #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb) + +@@ -2930,7 +2934,7 @@ 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); + +@@ -3779,7 +3783,7 @@ void netif_napi_del(struct napi_struct * + } + 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; +diff -urNp linux-3.1.1/net/core/flow.c linux-3.1.1/net/core/flow.c +--- linux-3.1.1/net/core/flow.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/flow.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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(unsig + + 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 + 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 -urNp linux-3.1.1/net/core/iovec.c linux-3.1.1/net/core/iovec.c +--- linux-3.1.1/net/core/iovec.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/iovec.c 2011-11-16 18:39:08.000000000 -0500 +@@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struc + 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, struc + } + + 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 -urNp linux-3.1.1/net/core/rtnetlink.c linux-3.1.1/net/core/rtnetlink.c +--- linux-3.1.1/net/core/rtnetlink.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/rtnetlink.c 2011-11-16 18:39:08.000000000 -0500 +@@ -57,7 +57,7 @@ struct rtnl_link { + rtnl_doit_func doit; + rtnl_dumpit_func dumpit; + rtnl_calcit_func calcit; +-}; ++} __no_const; + + static DEFINE_MUTEX(rtnl_mutex); + static u16 min_ifinfo_dump_size; +diff -urNp linux-3.1.1/net/core/scm.c linux-3.1.1/net/core/scm.c +--- linux-3.1.1/net/core/scm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/scm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -218,7 +218,7 @@ 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; +@@ -241,7 +241,7 @@ int put_cmsg(struct msghdr * msg, int le + 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) +@@ -257,7 +257,7 @@ 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; +@@ -277,7 +277,7 @@ void scm_detach_fds(struct msghdr *msg, + 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 -urNp linux-3.1.1/net/core/skbuff.c linux-3.1.1/net/core/skbuff.c +--- linux-3.1.1/net/core/skbuff.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/skbuff.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1650,6 +1650,8 @@ int skb_splice_bits(struct sk_buff *skb, + struct sock *sk = skb->sk; + int ret = 0; + ++ pax_track_stack(); ++ + if (splice_grow_spd(pipe, &spd)) + return -ENOMEM; + +diff -urNp linux-3.1.1/net/core/sock.c linux-3.1.1/net/core/sock.c +--- linux-3.1.1/net/core/sock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/core/sock.c 2011-11-16 18:40:44.000000000 -0500 +@@ -293,7 +293,7 @@ int sock_queue_rcv_skb(struct sock *sk, + */ + if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= + (unsigned)sk->sk_rcvbuf) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + trace_sock_rcvqueue_full(sk, skb); + return -ENOMEM; + } +@@ -303,7 +303,7 @@ int sock_queue_rcv_skb(struct sock *sk, + return err; + + if (!sk_rmem_schedule(sk, skb->truesize)) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + return -ENOBUFS; + } + +@@ -323,7 +323,7 @@ int sock_queue_rcv_skb(struct sock *sk, + 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); + +@@ -343,7 +343,7 @@ int sk_receive_skb(struct sock *sk, stru + 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) +@@ -361,7 +361,7 @@ int sk_receive_skb(struct sock *sk, stru + 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; + } + +@@ -924,7 +924,7 @@ int sock_getsockopt(struct socket *sock, + 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; + } +@@ -937,7 +937,7 @@ int sock_getsockopt(struct socket *sock, + 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; + } +@@ -970,7 +970,7 @@ int sock_getsockopt(struct socket *sock, + + 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)) +@@ -2029,7 +2029,7 @@ void sock_init_data(struct socket *sock, + */ + 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 -urNp linux-3.1.1/net/decnet/sysctl_net_decnet.c linux-3.1.1/net/decnet/sysctl_net_decnet.c +--- linux-3.1.1/net/decnet/sysctl_net_decnet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/decnet/sysctl_net_decnet.c 2011-11-16 18:39:08.000000000 -0500 +@@ -174,7 +174,7 @@ static int dn_node_address_handler(ctl_t + + 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 + + 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 -urNp linux-3.1.1/net/econet/Kconfig linux-3.1.1/net/econet/Kconfig +--- linux-3.1.1/net/econet/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/econet/Kconfig 2011-11-16 18:40:44.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/ipv4/fib_frontend.c linux-3.1.1/net/ipv4/fib_frontend.c +--- linux-3.1.1/net/ipv4/fib_frontend.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/fib_frontend.c 2011-11-16 18:39:08.000000000 -0500 +@@ -970,12 +970,12 @@ static int fib_inetaddr_event(struct not + #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. +@@ -1011,7 +1011,7 @@ static int fib_netdev_event(struct notif + #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 -urNp linux-3.1.1/net/ipv4/fib_semantics.c linux-3.1.1/net/ipv4/fib_semantics.c +--- linux-3.1.1/net/ipv4/fib_semantics.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/fib_semantics.c 2011-11-16 18:39:08.000000000 -0500 +@@ -699,7 +699,7 @@ __be32 fib_info_update_nh_saddr(struct n + 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 -urNp linux-3.1.1/net/ipv4/inet_diag.c linux-3.1.1/net/ipv4/inet_diag.c +--- linux-3.1.1/net/ipv4/inet_diag.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/inet_diag.c 2011-11-16 18:40:44.000000000 -0500 +@@ -114,8 +114,14 @@ static int inet_csk_diag_fill(struct soc + r->idiag_retrans = 0; + + r->id.idiag_if = sk->sk_bound_dev_if; ++ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ r->id.idiag_cookie[0] = 0; ++ r->id.idiag_cookie[1] = 0; ++#else + r->id.idiag_cookie[0] = (u32)(unsigned long)sk; + r->id.idiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1); ++#endif + + r->id.idiag_sport = inet->inet_sport; + r->id.idiag_dport = inet->inet_dport; +@@ -201,8 +207,15 @@ static int inet_twsk_diag_fill(struct in + r->idiag_family = tw->tw_family; + r->idiag_retrans = 0; + r->id.idiag_if = tw->tw_bound_dev_if; ++ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ r->id.idiag_cookie[0] = 0; ++ r->id.idiag_cookie[1] = 0; ++#else + r->id.idiag_cookie[0] = (u32)(unsigned long)tw; + r->id.idiag_cookie[1] = (u32)(((unsigned long)tw >> 31) >> 1); ++#endif ++ + r->id.idiag_sport = tw->tw_sport; + r->id.idiag_dport = tw->tw_dport; + r->id.idiag_src[0] = tw->tw_rcv_saddr; +@@ -285,12 +298,14 @@ static int inet_diag_get_exact(struct sk + if (sk == NULL) + goto unlock; + ++#ifndef CONFIG_GRKERNSEC_HIDESYM + err = -ESTALE; + if ((req->id.idiag_cookie[0] != INET_DIAG_NOCOOKIE || + req->id.idiag_cookie[1] != INET_DIAG_NOCOOKIE) && + ((u32)(unsigned long)sk != req->id.idiag_cookie[0] || + (u32)((((unsigned long)sk) >> 31) >> 1) != req->id.idiag_cookie[1])) + goto out; ++#endif + + err = -ENOMEM; + rep = alloc_skb(NLMSG_SPACE((sizeof(struct inet_diag_msg) + +@@ -580,8 +595,14 @@ static int inet_diag_fill_req(struct sk_ + r->idiag_retrans = req->retrans; + + r->id.idiag_if = sk->sk_bound_dev_if; ++ ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ r->id.idiag_cookie[0] = 0; ++ r->id.idiag_cookie[1] = 0; ++#else + r->id.idiag_cookie[0] = (u32)(unsigned long)req; + r->id.idiag_cookie[1] = (u32)(((unsigned long)req >> 31) >> 1); ++#endif + + tmo = req->expires - jiffies; + if (tmo < 0) +diff -urNp linux-3.1.1/net/ipv4/inet_hashtables.c linux-3.1.1/net/ipv4/inet_hashtables.c +--- linux-3.1.1/net/ipv4/inet_hashtables.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/inet_hashtables.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/ipv4/inetpeer.c linux-3.1.1/net/ipv4/inetpeer.c +--- linux-3.1.1/net/ipv4/inetpeer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/inetpeer.c 2011-11-16 19:18:22.000000000 -0500 +@@ -400,6 +400,8 @@ struct inet_peer *inet_getpeer(const str + unsigned int sequence; + int invalidated, gccnt = 0; + ++ pax_track_stack(); ++ + /* Attempt a lockless lookup first. + * Because of a concurrent writer, we might not find an existing entry. + */ +@@ -436,8 +438,8 @@ 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 -urNp linux-3.1.1/net/ipv4/ipconfig.c linux-3.1.1/net/ipv4/ipconfig.c +--- linux-3.1.1/net/ipv4/ipconfig.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/ipconfig.c 2011-11-16 18:39:08.000000000 -0500 +@@ -313,7 +313,7 @@ static int __init ic_devinet_ioctl(unsig + + 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; + } +@@ -324,7 +324,7 @@ static int __init ic_dev_ioctl(unsigned + + 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; + } +@@ -335,7 +335,7 @@ static int __init ic_route_ioctl(unsigne + + 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 -urNp linux-3.1.1/net/ipv4/ip_fragment.c linux-3.1.1/net/ipv4/ip_fragment.c +--- linux-3.1.1/net/ipv4/ip_fragment.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/ip_fragment.c 2011-11-16 18:39:08.000000000 -0500 +@@ -316,7 +316,7 @@ static inline int ip_frag_too_far(struct + 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 -urNp linux-3.1.1/net/ipv4/ip_sockglue.c linux-3.1.1/net/ipv4/ip_sockglue.c +--- linux-3.1.1/net/ipv4/ip_sockglue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/ip_sockglue.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1073,6 +1073,8 @@ static int do_ip_getsockopt(struct sock + int val; + int len; + ++ pax_track_stack(); ++ + if (level != SOL_IP) + return -EOPNOTSUPP; + +@@ -1110,7 +1112,8 @@ static int do_ip_getsockopt(struct sock + 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; + } +@@ -1238,7 +1241,7 @@ static int do_ip_getsockopt(struct sock + 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 -urNp linux-3.1.1/net/ipv4/netfilter/nf_nat_snmp_basic.c linux-3.1.1/net/ipv4/netfilter/nf_nat_snmp_basic.c +--- linux-3.1.1/net/ipv4/netfilter/nf_nat_snmp_basic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/netfilter/nf_nat_snmp_basic.c 2011-11-16 18:39:08.000000000 -0500 +@@ -399,7 +399,7 @@ static unsigned char asn1_octets_decode( + + *len = 0; + +- *octets = kmalloc(eoc - ctx->pointer, GFP_ATOMIC); ++ *octets = kmalloc((eoc - ctx->pointer), GFP_ATOMIC); + if (*octets == NULL) { + if (net_ratelimit()) + pr_notice("OOM in bsalg (%d)\n", __LINE__); +diff -urNp linux-3.1.1/net/ipv4/ping.c linux-3.1.1/net/ipv4/ping.c +--- linux-3.1.1/net/ipv4/ping.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/ping.c 2011-11-16 18:39:08.000000000 -0500 +@@ -837,7 +837,7 @@ static void ping_format_sock(struct sock + 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 -urNp linux-3.1.1/net/ipv4/raw.c linux-3.1.1/net/ipv4/raw.c +--- linux-3.1.1/net/ipv4/raw.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/raw.c 2011-11-17 18:58:40.000000000 -0500 +@@ -302,7 +302,7 @@ static int raw_rcv_skb(struct sock * sk, + 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; + } +@@ -737,16 +737,20 @@ 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; +@@ -756,8 +760,8 @@ static int raw_geticmpfilter(struct sock + 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; +@@ -985,7 +989,13 @@ static void raw_sock_seq_show(struct seq + 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 -urNp linux-3.1.1/net/ipv4/route.c linux-3.1.1/net/ipv4/route.c +--- linux-3.1.1/net/ipv4/route.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/route.c 2011-11-16 18:39:08.000000000 -0500 +@@ -308,7 +308,7 @@ static inline unsigned int rt_hash(__be3 + + 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 +@@ -837,7 +837,7 @@ static void rt_cache_invalidate(struct n + 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); + } + + /* +@@ -2872,7 +2872,7 @@ 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 -urNp linux-3.1.1/net/ipv4/tcp.c linux-3.1.1/net/ipv4/tcp.c +--- linux-3.1.1/net/ipv4/tcp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp.c 2011-11-16 18:40:44.000000000 -0500 +@@ -2122,6 +2122,8 @@ static int do_tcp_setsockopt(struct sock + int val; + int err = 0; + ++ pax_track_stack(); ++ + /* These are data/string values, all the others are ints */ + switch (optname) { + case TCP_CONGESTION: { +@@ -2501,6 +2503,8 @@ static int do_tcp_getsockopt(struct sock + struct tcp_sock *tp = tcp_sk(sk); + int val, len; + ++ pax_track_stack(); ++ + if (get_user(len, optlen)) + return -EFAULT; + +diff -urNp linux-3.1.1/net/ipv4/tcp_ipv4.c linux-3.1.1/net/ipv4/tcp_ipv4.c +--- linux-3.1.1/net/ipv4/tcp_ipv4.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp_ipv4.c 2011-11-16 18:40:44.000000000 -0500 +@@ -87,6 +87,9 @@ int sysctl_tcp_tw_reuse __read_mostly; + 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 struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, +@@ -1622,6 +1625,9 @@ int tcp_v4_do_rcv(struct sock *sk, struc + return 0; + + reset: ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole) ++#endif + tcp_v4_send_reset(rsk, skb); + discard: + kfree_skb(skb); +@@ -1684,12 +1690,19 @@ 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); +@@ -1739,6 +1752,10 @@ 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); + } + +@@ -2403,7 +2420,11 @@ static void get_openreq4(struct sock *sk + 0, /* non standard timer */ + 0, /* open_requests have no inode */ + atomic_read(&sk->sk_refcnt), ++#ifdef CONFIG_GRKERNSEC_HIDESYM ++ NULL, ++#else + req, ++#endif + len); + } + +@@ -2453,7 +2474,12 @@ static void get_tcp4_sock(struct sock *s + 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, +@@ -2481,7 +2507,13 @@ static void get_timewait4_sock(struct in + " %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 -urNp linux-3.1.1/net/ipv4/tcp_minisocks.c linux-3.1.1/net/ipv4/tcp_minisocks.c +--- linux-3.1.1/net/ipv4/tcp_minisocks.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp_minisocks.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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); + +@@ -750,6 +754,10 @@ 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 -urNp linux-3.1.1/net/ipv4/tcp_output.c linux-3.1.1/net/ipv4/tcp_output.c +--- linux-3.1.1/net/ipv4/tcp_output.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp_output.c 2011-11-16 18:40:44.000000000 -0500 +@@ -2421,6 +2421,8 @@ struct sk_buff *tcp_make_synack(struct s + int mss; + int s_data_desired = 0; + ++ pax_track_stack(); ++ + if (cvp != NULL && cvp->s_data_constant && cvp->s_data_desired) + s_data_desired = cvp->s_data_desired; + skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15 + s_data_desired, 1, GFP_ATOMIC); +diff -urNp linux-3.1.1/net/ipv4/tcp_probe.c linux-3.1.1/net/ipv4/tcp_probe.c +--- linux-3.1.1/net/ipv4/tcp_probe.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp_probe.c 2011-11-16 18:39:08.000000000 -0500 +@@ -202,7 +202,7 @@ static ssize_t tcpprobe_read(struct file + 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 -urNp linux-3.1.1/net/ipv4/tcp_timer.c linux-3.1.1/net/ipv4/tcp_timer.c +--- linux-3.1.1/net/ipv4/tcp_timer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/tcp_timer.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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; +@@ -199,6 +203,13 @@ static int tcp_write_timeout(struct sock + } + } + ++#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 -urNp linux-3.1.1/net/ipv4/udp.c linux-3.1.1/net/ipv4/udp.c +--- linux-3.1.1/net/ipv4/udp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv4/udp.c 2011-11-16 19:17:54.000000000 -0500 +@@ -86,6 +86,7 @@ + #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> +@@ -108,6 +109,10 @@ + #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); + +@@ -565,6 +570,9 @@ 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 +@@ -856,9 +864,18 @@ int udp_sendmsg(struct kiocb *iocb, stru + 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. +@@ -1099,7 +1116,7 @@ static unsigned int first_packet_length( + 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); + } +@@ -1185,6 +1202,10 @@ try_again: + if (!skb) + goto out; + ++ err = gr_search_udp_recvmsg(sk, skb); ++ if (err) ++ goto out_free; ++ + ulen = skb->len - sizeof(struct udphdr); + if (len > ulen) + len = ulen; +@@ -1485,7 +1506,7 @@ int udp_queue_rcv_skb(struct sock *sk, s + + 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; + } +@@ -1504,7 +1525,7 @@ static void flush_stack(struct sock **st + 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, +@@ -1673,6 +1694,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, + 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); + + /* +@@ -2100,8 +2124,13 @@ static void udp4_format_sock(struct sock + 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 -urNp linux-3.1.1/net/ipv6/addrconf.c linux-3.1.1/net/ipv6/addrconf.c +--- linux-3.1.1/net/ipv6/addrconf.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/addrconf.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2083,7 +2083,7 @@ int addrconf_set_dstaddr(struct net *net + 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 -urNp linux-3.1.1/net/ipv6/inet6_connection_sock.c linux-3.1.1/net/ipv6/inet6_connection_sock.c +--- linux-3.1.1/net/ipv6/inet6_connection_sock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/inet6_connection_sock.c 2011-11-16 18:39:08.000000000 -0500 +@@ -178,7 +178,7 @@ void __inet6_csk_dst_store(struct sock * + #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( + #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 -urNp linux-3.1.1/net/ipv6/ipv6_sockglue.c linux-3.1.1/net/ipv6/ipv6_sockglue.c +--- linux-3.1.1/net/ipv6/ipv6_sockglue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/ipv6_sockglue.c 2011-11-16 18:40:44.000000000 -0500 +@@ -129,6 +129,8 @@ static int do_ipv6_setsockopt(struct soc + int val, valbool; + int retv = -ENOPROTOOPT; + ++ pax_track_stack(); ++ + if (optval == NULL) + val=0; + else { +@@ -919,6 +921,8 @@ static int do_ipv6_getsockopt(struct soc + int len; + int val; + ++ pax_track_stack(); ++ + if (ip6_mroute_opt(optname)) + return ip6_mroute_getsockopt(sk, optname, optval, optlen); + +@@ -960,7 +964,7 @@ static int do_ipv6_getsockopt(struct soc + 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 -urNp linux-3.1.1/net/ipv6/raw.c linux-3.1.1/net/ipv6/raw.c +--- linux-3.1.1/net/ipv6/raw.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/raw.c 2011-11-16 18:40:44.000000000 -0500 +@@ -376,7 +376,7 @@ static inline int rawv6_rcv_skb(struct s + { + if ((raw6_sk(sk)->checksum || rcu_dereference_raw(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; + } +@@ -403,7 +403,7 @@ int rawv6_rcv(struct sock *sk, struct sk + 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; + } +@@ -427,7 +427,7 @@ int rawv6_rcv(struct sock *sk, struct sk + + 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; + } +@@ -601,7 +601,7 @@ 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) + { +@@ -742,6 +742,8 @@ static int rawv6_sendmsg(struct kiocb *i + u16 proto; + int err; + ++ pax_track_stack(); ++ + /* Rough check on arithmetic overflow, + better check is made in ip6_append_data(). + */ +@@ -909,12 +911,15 @@ 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; +@@ -927,6 +932,7 @@ static int rawv6_geticmpfilter(struct so + char __user *optval, int __user *optlen) + { + int len; ++ struct icmp6_filter filter; + + switch (optname) { + case ICMPV6_FILTER: +@@ -938,7 +944,8 @@ static int rawv6_geticmpfilter(struct so + 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: +@@ -1245,7 +1252,13 @@ static void raw6_sock_seq_show(struct se + 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 -urNp linux-3.1.1/net/ipv6/tcp_ipv6.c linux-3.1.1/net/ipv6/tcp_ipv6.c +--- linux-3.1.1/net/ipv6/tcp_ipv6.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/tcp_ipv6.c 2011-11-16 18:40:44.000000000 -0500 +@@ -93,6 +93,10 @@ static struct tcp_md5sig_key *tcp_v6_md5 + } + #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) { +@@ -1647,6 +1651,9 @@ static int tcp_v6_do_rcv(struct sock *sk + return 0; + + reset: ++#ifdef CONFIG_GRKERNSEC_BLACKHOLE ++ if (!grsec_enable_blackhole) ++#endif + tcp_v6_send_reset(sk, skb); + discard: + if (opt_skb) +@@ -1726,12 +1733,20 @@ static int tcp_v6_rcv(struct sk_buff *sk + 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); +@@ -1779,6 +1794,10 @@ 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); + } + +@@ -2039,7 +2058,13 @@ static void get_openreq6(struct seq_file + 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) +@@ -2089,7 +2114,12 @@ static void get_tcp6_sock(struct seq_fil + 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, +@@ -2124,7 +2154,13 @@ static void get_timewait6_sock(struct se + 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 -urNp linux-3.1.1/net/ipv6/udp.c linux-3.1.1/net/ipv6/udp.c +--- linux-3.1.1/net/ipv6/udp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/ipv6/udp.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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; +@@ -548,7 +552,7 @@ int udpv6_queue_rcv_skb(struct sock * sk + + 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); +@@ -624,7 +628,7 @@ static void flush_stack(struct sock **st + 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), +@@ -779,6 +783,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, + 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); +@@ -795,7 +802,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, + 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; +@@ -1406,8 +1413,13 @@ static void udp6_sock_seq_show(struct se + 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 -urNp linux-3.1.1/net/irda/ircomm/ircomm_tty.c linux-3.1.1/net/irda/ircomm/ircomm_tty.c +--- linux-3.1.1/net/irda/ircomm/ircomm_tty.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/irda/ircomm/ircomm_tty.c 2011-11-16 18:39:08.000000000 -0500 +@@ -282,16 +282,16 @@ static int ircomm_tty_block_til_ready(st + 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) { +@@ -331,7 +331,7 @@ static int ircomm_tty_block_til_ready(st + } + + 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(); + } +@@ -342,13 +342,13 @@ static int ircomm_tty_block_til_ready(st + 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; +@@ -417,14 +417,14 @@ static int ircomm_tty_open(struct tty_st + } + /* ++ 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; +@@ -510,7 +510,7 @@ static void ircomm_tty_close(struct tty_ + 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 +@@ -520,16 +520,16 @@ static void ircomm_tty_close(struct tty_ + */ + 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__ ); +@@ -561,7 +561,7 @@ static void ircomm_tty_close(struct tty_ + 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); +@@ -1013,7 +1013,7 @@ static void ircomm_tty_hangup(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); +@@ -1360,7 +1360,7 @@ static void ircomm_tty_line_info(struct + 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 -urNp linux-3.1.1/net/iucv/af_iucv.c linux-3.1.1/net/iucv/af_iucv.c +--- linux-3.1.1/net/iucv/af_iucv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/iucv/af_iucv.c 2011-11-16 18:39:08.000000000 -0500 +@@ -648,10 +648,10 @@ static int iucv_sock_autobind(struct soc + + 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 -urNp linux-3.1.1/net/key/af_key.c linux-3.1.1/net/key/af_key.c +--- linux-3.1.1/net/key/af_key.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/key/af_key.c 2011-11-16 18:40:44.000000000 -0500 +@@ -2481,6 +2481,8 @@ static int pfkey_migrate(struct sock *sk + struct xfrm_migrate m[XFRM_MAX_DEPTH]; + struct xfrm_kmaddress k; + ++ pax_track_stack(); ++ + if (!present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC - 1], + ext_hdrs[SADB_EXT_ADDRESS_DST - 1]) || + !ext_hdrs[SADB_X_EXT_POLICY - 1]) { +@@ -3016,10 +3018,10 @@ static int pfkey_send_policy_notify(stru + 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 -urNp linux-3.1.1/net/lapb/lapb_iface.c linux-3.1.1/net/lapb/lapb_iface.c +--- linux-3.1.1/net/lapb/lapb_iface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/lapb/lapb_iface.c 2011-11-16 18:39:08.000000000 -0500 +@@ -158,7 +158,7 @@ int lapb_register(struct net_device *dev + goto out; + + lapb->dev = dev; +- lapb->callbacks = *callbacks; ++ lapb->callbacks = callbacks; + + __lapb_insert_cb(lapb); + +@@ -380,32 +380,32 @@ int lapb_data_received(struct net_device + + void lapb_connect_confirmation(struct lapb_cb *lapb, int reason) + { +- if (lapb->callbacks.connect_confirmation) +- lapb->callbacks.connect_confirmation(lapb->dev, reason); ++ if (lapb->callbacks->connect_confirmation) ++ lapb->callbacks->connect_confirmation(lapb->dev, reason); + } + + void lapb_connect_indication(struct lapb_cb *lapb, int reason) + { +- if (lapb->callbacks.connect_indication) +- lapb->callbacks.connect_indication(lapb->dev, reason); ++ if (lapb->callbacks->connect_indication) ++ lapb->callbacks->connect_indication(lapb->dev, reason); + } + + void lapb_disconnect_confirmation(struct lapb_cb *lapb, int reason) + { +- if (lapb->callbacks.disconnect_confirmation) +- lapb->callbacks.disconnect_confirmation(lapb->dev, reason); ++ if (lapb->callbacks->disconnect_confirmation) ++ lapb->callbacks->disconnect_confirmation(lapb->dev, reason); + } + + void lapb_disconnect_indication(struct lapb_cb *lapb, int reason) + { +- if (lapb->callbacks.disconnect_indication) +- lapb->callbacks.disconnect_indication(lapb->dev, reason); ++ if (lapb->callbacks->disconnect_indication) ++ lapb->callbacks->disconnect_indication(lapb->dev, reason); + } + + int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *skb) + { +- if (lapb->callbacks.data_indication) +- return lapb->callbacks.data_indication(lapb->dev, skb); ++ if (lapb->callbacks->data_indication) ++ return lapb->callbacks->data_indication(lapb->dev, skb); + + kfree_skb(skb); + return NET_RX_SUCCESS; /* For now; must be != NET_RX_DROP */ +@@ -415,8 +415,8 @@ int lapb_data_transmit(struct lapb_cb *l + { + int used = 0; + +- if (lapb->callbacks.data_transmit) { +- lapb->callbacks.data_transmit(lapb->dev, skb); ++ if (lapb->callbacks->data_transmit) { ++ lapb->callbacks->data_transmit(lapb->dev, skb); + used = 1; + } + +diff -urNp linux-3.1.1/net/mac80211/debugfs_sta.c linux-3.1.1/net/mac80211/debugfs_sta.c +--- linux-3.1.1/net/mac80211/debugfs_sta.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/debugfs_sta.c 2011-11-16 18:40:44.000000000 -0500 +@@ -140,6 +140,8 @@ static ssize_t sta_agg_status_read(struc + struct tid_ampdu_rx *tid_rx; + struct tid_ampdu_tx *tid_tx; + ++ pax_track_stack(); ++ + rcu_read_lock(); + + p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n", +@@ -240,6 +242,8 @@ static ssize_t sta_ht_capa_read(struct f + struct sta_info *sta = file->private_data; + struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap; + ++ pax_track_stack(); ++ + p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n", + htc->ht_supported ? "" : "not "); + if (htc->ht_supported) { +diff -urNp linux-3.1.1/net/mac80211/ieee80211_i.h linux-3.1.1/net/mac80211/ieee80211_i.h +--- linux-3.1.1/net/mac80211/ieee80211_i.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/ieee80211_i.h 2011-11-16 18:39:08.000000000 -0500 +@@ -27,6 +27,7 @@ + #include <net/ieee80211_radiotap.h> + #include <net/cfg80211.h> + #include <net/mac80211.h> ++#include <asm/local.h> + #include "key.h" + #include "sta_info.h" + +@@ -754,7 +755,7 @@ 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 -urNp linux-3.1.1/net/mac80211/iface.c linux-3.1.1/net/mac80211/iface.c +--- linux-3.1.1/net/mac80211/iface.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/iface.c 2011-11-16 18:39:08.000000000 -0500 +@@ -211,7 +211,7 @@ static int ieee80211_do_open(struct net_ + break; + } + +- if (local->open_count == 0) { ++ if (local_read(&local->open_count) == 0) { + res = drv_start(local); + if (res) + goto err_del_bss; +@@ -235,7 +235,7 @@ static int ieee80211_do_open(struct net_ + 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; + } +@@ -327,7 +327,7 @@ static int ieee80211_do_open(struct net_ + 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); +@@ -347,7 +347,7 @@ static int ieee80211_do_open(struct net_ + err_del_interface: + drv_remove_interface(local, &sdata->vif); + err_stop: +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + drv_stop(local); + err_del_bss: + sdata->bss = NULL; +@@ -474,7 +474,7 @@ static void ieee80211_do_stop(struct iee + } + + if (going_down) +- local->open_count--; ++ local_dec(&local->open_count); + + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP_VLAN: +@@ -533,7 +533,7 @@ static void ieee80211_do_stop(struct iee + + 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 -urNp linux-3.1.1/net/mac80211/main.c linux-3.1.1/net/mac80211/main.c +--- linux-3.1.1/net/mac80211/main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/main.c 2011-11-16 18:39:08.000000000 -0500 +@@ -209,7 +209,7 @@ int ieee80211_hw_config(struct ieee80211 + 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 -urNp linux-3.1.1/net/mac80211/mlme.c linux-3.1.1/net/mac80211/mlme.c +--- linux-3.1.1/net/mac80211/mlme.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/mlme.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1464,6 +1464,8 @@ static bool ieee80211_assoc_success(stru + bool have_higher_than_11mbit = false; + u16 ap_ht_cap_flags; + ++ pax_track_stack(); ++ + /* AssocResp and ReassocResp have identical structure */ + + aid = le16_to_cpu(mgmt->u.assoc_resp.aid); +diff -urNp linux-3.1.1/net/mac80211/pm.c linux-3.1.1/net/mac80211/pm.c +--- linux-3.1.1/net/mac80211/pm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/pm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -34,7 +34,7 @@ int __ieee80211_suspend(struct ieee80211 + 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 + 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) { +@@ -129,7 +129,7 @@ int __ieee80211_suspend(struct ieee80211 + } + + /* stop hardware - this must stop RX */ +- if (local->open_count) ++ if (local_read(&local->open_count)) + ieee80211_stop_device(local); + + suspend: +diff -urNp linux-3.1.1/net/mac80211/rate.c linux-3.1.1/net/mac80211/rate.c +--- linux-3.1.1/net/mac80211/rate.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/rate.c 2011-11-16 18:39:08.000000000 -0500 +@@ -371,7 +371,7 @@ int ieee80211_init_rate_ctrl_alg(struct + + ASSERT_RTNL(); + +- if (local->open_count) ++ if (local_read(&local->open_count)) + return -EBUSY; + + if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { +diff -urNp linux-3.1.1/net/mac80211/rc80211_pid_debugfs.c linux-3.1.1/net/mac80211/rc80211_pid_debugfs.c +--- linux-3.1.1/net/mac80211/rc80211_pid_debugfs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/rc80211_pid_debugfs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -192,7 +192,7 @@ static ssize_t rate_control_pid_events_r + + 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 -urNp linux-3.1.1/net/mac80211/util.c linux-3.1.1/net/mac80211/util.c +--- linux-3.1.1/net/mac80211/util.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/mac80211/util.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1166,7 +1166,7 @@ int ieee80211_reconfig(struct ieee80211_ + drv_set_coverage_class(local, hw->wiphy->coverage_class); + + /* everything else happens only if HW was up & running */ +- if (!local->open_count) ++ if (!local_read(&local->open_count)) + goto wake_up; + + /* +diff -urNp linux-3.1.1/net/netfilter/ipvs/ip_vs_conn.c linux-3.1.1/net/netfilter/ipvs/ip_vs_conn.c +--- linux-3.1.1/net/netfilter/ipvs/ip_vs_conn.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/ipvs/ip_vs_conn.c 2011-11-16 18:39:08.000000000 -0500 +@@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, s + /* 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_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 + + /* 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 -urNp linux-3.1.1/net/netfilter/ipvs/ip_vs_core.c linux-3.1.1/net/netfilter/ipvs/ip_vs_core.c +--- linux-3.1.1/net/netfilter/ipvs/ip_vs_core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/ipvs/ip_vs_core.c 2011-11-16 18:39:08.000000000 -0500 +@@ -563,7 +563,7 @@ int ip_vs_leave(struct ip_vs_service *sv + 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; + } +@@ -1612,7 +1612,7 @@ ip_vs_in(unsigned int hooknum, struct sk + 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 -urNp linux-3.1.1/net/netfilter/ipvs/ip_vs_ctl.c linux-3.1.1/net/netfilter/ipvs/ip_vs_ctl.c +--- linux-3.1.1/net/netfilter/ipvs/ip_vs_ctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/ipvs/ip_vs_ctl.c 2011-11-16 19:13:12.000000000 -0500 +@@ -782,7 +782,7 @@ __ip_vs_update_dest(struct ip_vs_service + 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) { +@@ -2027,7 +2027,7 @@ static int ip_vs_info_seq_show(struct se + " %-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)); +@@ -2038,7 +2038,7 @@ static int ip_vs_info_seq_show(struct se + "%-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)); +@@ -2285,6 +2285,8 @@ do_ip_vs_set_ctl(struct sock *sk, int cm + struct ip_vs_dest_user_kern udest; + struct netns_ipvs *ipvs = net_ipvs(net); + ++ pax_track_stack(); ++ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + +@@ -2508,7 +2510,7 @@ __ip_vs_get_dest_entries(struct net *net + + 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; +@@ -3041,7 +3043,7 @@ static int ip_vs_genl_fill_dest(struct s + 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 -urNp linux-3.1.1/net/netfilter/ipvs/ip_vs_sync.c linux-3.1.1/net/netfilter/ipvs/ip_vs_sync.c +--- linux-3.1.1/net/netfilter/ipvs/ip_vs_sync.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/ipvs/ip_vs_sync.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 * + + 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 -urNp linux-3.1.1/net/netfilter/ipvs/ip_vs_xmit.c linux-3.1.1/net/netfilter/ipvs/ip_vs_xmit.c +--- linux-3.1.1/net/netfilter/ipvs/ip_vs_xmit.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/ipvs/ip_vs_xmit.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1151,7 +1151,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, str + 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, + else + rc = NF_ACCEPT; + /* do not touch skb anymore */ +- atomic_inc(&cp->in_pkts); ++ atomic_inc_unchecked(&cp->in_pkts); + goto out; + } + +diff -urNp linux-3.1.1/net/netfilter/Kconfig linux-3.1.1/net/netfilter/Kconfig +--- linux-3.1.1/net/netfilter/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/Kconfig 2011-11-16 18:40:44.000000000 -0500 +@@ -781,6 +781,16 @@ 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 -urNp linux-3.1.1/net/netfilter/Makefile linux-3.1.1/net/netfilter/Makefile +--- linux-3.1.1/net/netfilter/Makefile 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/Makefile 2011-11-16 18:40:44.000000000 -0500 +@@ -81,6 +81,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DCCP) += + obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o + obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.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 -urNp linux-3.1.1/net/netfilter/nfnetlink_log.c linux-3.1.1/net/netfilter/nfnetlink_log.c +--- linux-3.1.1/net/netfilter/nfnetlink_log.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/nfnetlink_log.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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]; +@@ -505,7 +505,7 @@ __build_packet_message(struct nfulnl_ins + /* 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 -urNp linux-3.1.1/net/netfilter/xt_gradm.c linux-3.1.1/net/netfilter/xt_gradm.c +--- linux-3.1.1/net/netfilter/xt_gradm.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/net/netfilter/xt_gradm.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/netfilter/xt_statistic.c linux-3.1.1/net/netfilter/xt_statistic.c +--- linux-3.1.1/net/netfilter/xt_statistic.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netfilter/xt_statistic.c 2011-11-16 18:39:08.000000000 -0500 +@@ -18,7 +18,7 @@ + #include <linux/netfilter/x_tables.h> + + struct xt_statistic_priv { +- atomic_t count; ++ atomic_unchecked_t count; + } ____cacheline_aligned_in_smp; + + MODULE_LICENSE("GPL"); +@@ -41,9 +41,9 @@ statistic_mt(const struct sk_buff *skb, + 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; +@@ -63,7 +63,7 @@ static int statistic_mt_check(const stru + 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 -urNp linux-3.1.1/net/netlink/af_netlink.c linux-3.1.1/net/netlink/af_netlink.c +--- linux-3.1.1/net/netlink/af_netlink.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netlink/af_netlink.c 2011-11-16 18:39:08.000000000 -0500 +@@ -742,7 +742,7 @@ static void netlink_overrun(struct sock + 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) +@@ -2000,7 +2000,7 @@ static int netlink_seq_show(struct seq_f + 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 -urNp linux-3.1.1/net/netrom/af_netrom.c linux-3.1.1/net/netrom/af_netrom.c +--- linux-3.1.1/net/netrom/af_netrom.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/netrom/af_netrom.c 2011-11-16 18:40:44.000000000 -0500 +@@ -839,6 +839,7 @@ static int nr_getname(struct socket *soc + 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) { +@@ -853,7 +854,6 @@ static int nr_getname(struct socket *soc + *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 -urNp linux-3.1.1/net/packet/af_packet.c linux-3.1.1/net/packet/af_packet.c +--- linux-3.1.1/net/packet/af_packet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/packet/af_packet.c 2011-11-16 18:39:08.000000000 -0500 +@@ -954,7 +954,7 @@ static int packet_rcv(struct sk_buff *sk + + 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); +@@ -963,7 +963,7 @@ static int packet_rcv(struct sk_buff *sk + 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: +@@ -2479,7 +2479,7 @@ static int packet_getsockopt(struct sock + 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: +@@ -2526,7 +2526,7 @@ static int packet_getsockopt(struct sock + + 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 -urNp linux-3.1.1/net/phonet/af_phonet.c linux-3.1.1/net/phonet/af_phonet.c +--- linux-3.1.1/net/phonet/af_phonet.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/phonet/af_phonet.c 2011-11-16 18:40:44.000000000 -0500 +@@ -41,7 +41,7 @@ static struct phonet_protocol *phonet_pr + { + 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_regist + { + int err = 0; + +- if (protocol >= PHONET_NPROTO) ++ if (protocol < 0 || protocol >= PHONET_NPROTO) + return -EINVAL; + + err = proto_register(pp->prot, 1); +diff -urNp linux-3.1.1/net/phonet/pep.c linux-3.1.1/net/phonet/pep.c +--- linux-3.1.1/net/phonet/pep.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/phonet/pep.c 2011-11-16 18:39:08.000000000 -0500 +@@ -387,7 +387,7 @@ static int pipe_do_rcv(struct sock *sk, + + 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); +@@ -408,7 +408,7 @@ static int pipe_do_rcv(struct sock *sk, + } + + if (pn->rx_credits == 0) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + err = -ENOBUFS; + break; + } +@@ -556,7 +556,7 @@ static int pipe_handler_do_rcv(struct so + } + + if (pn->rx_credits == 0) { +- atomic_inc(&sk->sk_drops); ++ atomic_inc_unchecked(&sk->sk_drops); + err = NET_RX_DROP; + break; + } +diff -urNp linux-3.1.1/net/phonet/socket.c linux-3.1.1/net/phonet/socket.c +--- linux-3.1.1/net/phonet/socket.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/phonet/socket.c 2011-11-16 18:40:44.000000000 -0500 +@@ -612,8 +612,13 @@ static int pn_sock_seq_show(struct seq_f + 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 -urNp linux-3.1.1/net/rds/cong.c linux-3.1.1/net/rds/cong.c +--- linux-3.1.1/net/rds/cong.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/cong.c 2011-11-16 18:39:08.000000000 -0500 +@@ -77,7 +77,7 @@ + * 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 +@@ -232,7 +232,7 @@ void rds_cong_map_updated(struct rds_con + 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)) +@@ -258,7 +258,7 @@ 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 -urNp linux-3.1.1/net/rds/ib_cm.c linux-3.1.1/net/rds/ib_cm.c +--- linux-3.1.1/net/rds/ib_cm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/ib_cm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -720,7 +720,7 @@ void rds_ib_conn_shutdown(struct rds_con + /* 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 -urNp linux-3.1.1/net/rds/ib.h linux-3.1.1/net/rds/ib.h +--- linux-3.1.1/net/rds/ib.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/ib.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/rds/ib_recv.c linux-3.1.1/net/rds/ib_recv.c +--- linux-3.1.1/net/rds/ib_recv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/ib_recv.c 2011-11-16 18:39:08.000000000 -0500 +@@ -592,7 +592,7 @@ static u64 rds_ib_get_ack(struct rds_ib_ + 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_ + 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 -urNp linux-3.1.1/net/rds/iw_cm.c linux-3.1.1/net/rds/iw_cm.c +--- linux-3.1.1/net/rds/iw_cm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/iw_cm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_con + /* 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 -urNp linux-3.1.1/net/rds/iw.h linux-3.1.1/net/rds/iw.h +--- linux-3.1.1/net/rds/iw.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/iw.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/rds/iw_rdma.c linux-3.1.1/net/rds/iw_rdma.c +--- linux-3.1.1/net/rds/iw_rdma.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/iw_rdma.c 2011-11-16 18:40:44.000000000 -0500 +@@ -184,6 +184,8 @@ int rds_iw_update_cm_id(struct rds_iw_de + struct rdma_cm_id *pcm_id; + int rc; + ++ pax_track_stack(); ++ + src_addr = (struct sockaddr_in *)&cm_id->route.addr.src_addr; + dst_addr = (struct sockaddr_in *)&cm_id->route.addr.dst_addr; + +diff -urNp linux-3.1.1/net/rds/iw_recv.c linux-3.1.1/net/rds/iw_recv.c +--- linux-3.1.1/net/rds/iw_recv.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/iw_recv.c 2011-11-16 18:39:08.000000000 -0500 +@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_ + 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_ + 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 -urNp linux-3.1.1/net/rds/tcp.c linux-3.1.1/net/rds/tcp.c +--- linux-3.1.1/net/rds/tcp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/tcp.c 2011-11-16 18:39:08.000000000 -0500 +@@ -58,7 +58,7 @@ 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 -urNp linux-3.1.1/net/rds/tcp_send.c linux-3.1.1/net/rds/tcp_send.c +--- linux-3.1.1/net/rds/tcp_send.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rds/tcp_send.c 2011-11-16 18:39:08.000000000 -0500 +@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket * + + 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 -urNp linux-3.1.1/net/rxrpc/af_rxrpc.c linux-3.1.1/net/rxrpc/af_rxrpc.c +--- linux-3.1.1/net/rxrpc/af_rxrpc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/af_rxrpc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -39,7 +39,7 @@ static const struct proto_ops rxrpc_rpc_ + __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 -urNp linux-3.1.1/net/rxrpc/ar-ack.c linux-3.1.1/net/rxrpc/ar-ack.c +--- linux-3.1.1/net/rxrpc/ar-ack.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-ack.c 2011-11-16 18:40:44.000000000 -0500 +@@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_ca + + _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_ca + + /* 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(struc + */ + 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, +@@ -842,6 +842,8 @@ void rxrpc_process_call(struct work_stru + u32 abort_code = RX_PROTOCOL_ERROR; + u8 *acks = NULL; + ++ pax_track_stack(); ++ + //printk("\n--------------------\n"); + _enter("{%d,%s,%lx} [%lu]", + call->debug_id, rxrpc_call_states[call->state], call->events, +@@ -1161,7 +1163,7 @@ void rxrpc_process_call(struct work_stru + 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 +1175,7 @@ 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 +1193,7 @@ 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 -urNp linux-3.1.1/net/rxrpc/ar-call.c linux-3.1.1/net/rxrpc/ar-call.c +--- linux-3.1.1/net/rxrpc/ar-call.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-call.c 2011-11-16 18:39:08.000000000 -0500 +@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_ca + 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 -urNp linux-3.1.1/net/rxrpc/ar-connection.c linux-3.1.1/net/rxrpc/ar-connection.c +--- linux-3.1.1/net/rxrpc/ar-connection.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-connection.c 2011-11-16 18:39:08.000000000 -0500 +@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_al + 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 -urNp linux-3.1.1/net/rxrpc/ar-connevent.c linux-3.1.1/net/rxrpc/ar-connevent.c +--- linux-3.1.1/net/rxrpc/ar-connevent.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-connevent.c 2011-11-16 18:39:08.000000000 -0500 +@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct + + 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 -urNp linux-3.1.1/net/rxrpc/ar-input.c linux-3.1.1/net/rxrpc/ar-input.c +--- linux-3.1.1/net/rxrpc/ar-input.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-input.c 2011-11-16 18:39:08.000000000 -0500 +@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rx + /* 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 -urNp linux-3.1.1/net/rxrpc/ar-internal.h linux-3.1.1/net/rxrpc/ar-internal.h +--- linux-3.1.1/net/rxrpc/ar-internal.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-internal.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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(stru + */ + 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 -urNp linux-3.1.1/net/rxrpc/ar-local.c linux-3.1.1/net/rxrpc/ar-local.c +--- linux-3.1.1/net/rxrpc/ar-local.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-local.c 2011-11-16 18:39:08.000000000 -0500 +@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(st + 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 -urNp linux-3.1.1/net/rxrpc/ar-output.c linux-3.1.1/net/rxrpc/ar-output.c +--- linux-3.1.1/net/rxrpc/ar-output.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-output.c 2011-11-16 18:39:08.000000000 -0500 +@@ -681,9 +681,9 @@ static int rxrpc_send_data(struct kiocb + 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 -urNp linux-3.1.1/net/rxrpc/ar-peer.c linux-3.1.1/net/rxrpc/ar-peer.c +--- linux-3.1.1/net/rxrpc/ar-peer.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-peer.c 2011-11-16 18:39:08.000000000 -0500 +@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_pe + 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 -urNp linux-3.1.1/net/rxrpc/ar-proc.c linux-3.1.1/net/rxrpc/ar-proc.c +--- linux-3.1.1/net/rxrpc/ar-proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-proc.c 2011-11-16 18:39:08.000000000 -0500 +@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(str + 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 -urNp linux-3.1.1/net/rxrpc/ar-transport.c linux-3.1.1/net/rxrpc/ar-transport.c +--- linux-3.1.1/net/rxrpc/ar-transport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/ar-transport.c 2011-11-16 18:39:08.000000000 -0500 +@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_all + 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 -urNp linux-3.1.1/net/rxrpc/rxkad.c linux-3.1.1/net/rxrpc/rxkad.c +--- linux-3.1.1/net/rxrpc/rxkad.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/rxrpc/rxkad.c 2011-11-16 18:40:44.000000000 -0500 +@@ -211,6 +211,8 @@ static int rxkad_secure_packet_encrypt(c + u16 check; + int nsg; + ++ pax_track_stack(); ++ + sp = rxrpc_skb(skb); + + _enter(""); +@@ -338,6 +340,8 @@ static int rxkad_verify_packet_auth(cons + u16 check; + int nsg; + ++ pax_track_stack(); ++ + _enter(""); + + sp = rxrpc_skb(skb); +@@ -610,7 +614,7 @@ static int rxkad_issue_challenge(struct + + 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 +664,7 @@ static int rxkad_send_response(struct rx + + 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 -urNp linux-3.1.1/net/sctp/proc.c linux-3.1.1/net/sctp/proc.c +--- linux-3.1.1/net/sctp/proc.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sctp/proc.c 2011-11-16 18:40:44.000000000 -0500 +@@ -318,7 +318,8 @@ static int sctp_assocs_seq_show(struct s + 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 -urNp linux-3.1.1/net/sctp/socket.c linux-3.1.1/net/sctp/socket.c +--- linux-3.1.1/net/sctp/socket.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sctp/socket.c 2011-11-16 18:39:08.000000000 -0500 +@@ -4575,7 +4575,7 @@ static int sctp_getsockopt_peer_addrs(st + 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 -urNp linux-3.1.1/net/socket.c linux-3.1.1/net/socket.c +--- linux-3.1.1/net/socket.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/socket.c 2011-11-16 18:40:44.000000000 -0500 +@@ -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(struc + &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", +@@ -1187,6 +1190,8 @@ int __sock_create(struct net *net, int f + return -EAFNOSUPPORT; + if (type < 0 || type >= SOCK_MAX) + return -EINVAL; ++ if (protocol < 0) ++ return -EINVAL; + + /* Compatibility. + +@@ -1319,6 +1324,16 @@ SYSCALL_DEFINE3(socket, int, family, int + 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; +@@ -1431,6 +1446,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct so + if (sock) { + err = move_addr_to_kernel(umyaddr, addrlen, (struct sockaddr *)&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); +@@ -1439,6 +1462,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct so + (struct sockaddr *) + &address, addrlen); + } ++error: + fput_light(sock->file, fput_needed); + } + return err; +@@ -1462,10 +1486,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, ba + 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; +@@ -1509,6 +1543,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct + 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. +@@ -1547,6 +1593,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct + fd_install(newfd, newfile); + err = newfd; + ++ gr_attach_curr_ip(newsock->sk); ++ + out_put: + fput_light(sock->file, fput_needed); + out: +@@ -1579,6 +1627,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct + int, addrlen) + { + struct socket *sock; ++ struct sockaddr *sck; + struct sockaddr_storage address; + int err, fput_needed; + +@@ -1589,6 +1638,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct + 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) +@@ -1890,6 +1950,8 @@ static int __sys_sendmsg(struct socket * + unsigned char *ctl_buf = ctl; + int err, ctl_len, iov_size, total_len; + ++ pax_track_stack(); ++ + err = -EFAULT; + if (MSG_CMSG_COMPAT & flags) { + if (get_compat_msghdr(msg_sys, msg_compat)) +@@ -1950,7 +2012,7 @@ static int __sys_sendmsg(struct socket * + * 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; +@@ -2120,7 +2182,7 @@ static int __sys_recvmsg(struct socket * + * 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, +@@ -2748,7 +2810,7 @@ static int ethtool_ioctl(struct net *net + } + + 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; +@@ -2772,12 +2834,12 @@ static int ethtool_ioctl(struct net *net + 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; +@@ -2789,12 +2851,12 @@ static int ethtool_ioctl(struct net *net + + 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; +@@ -2864,7 +2926,7 @@ static int bond_ioctl(struct net *net, u + 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; +@@ -2973,7 +3035,7 @@ static int compat_sioc_ifmap(struct net + + 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) { +@@ -3078,7 +3140,7 @@ static int routing_ioctl(struct net *net + 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; +@@ -3318,8 +3380,8 @@ int kernel_getsockopt(struct socket *soc + 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) +@@ -3339,7 +3401,7 @@ int kernel_setsockopt(struct socket *soc + char __user *uoptval; + int err; + +- uoptval = (char __user __force *) optval; ++ uoptval = (char __force_user *) optval; + + set_fs(KERNEL_DS); + if (level == SOL_SOCKET) +diff -urNp linux-3.1.1/net/sunrpc/sched.c linux-3.1.1/net/sunrpc/sched.c +--- linux-3.1.1/net/sunrpc/sched.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/sched.c 2011-11-16 18:39:08.000000000 -0500 +@@ -238,9 +238,9 @@ static int rpc_wait_bit_killable(void *w + #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 -urNp linux-3.1.1/net/sunrpc/svcsock.c linux-3.1.1/net/sunrpc/svcsock.c +--- linux-3.1.1/net/sunrpc/svcsock.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/svcsock.c 2011-11-16 18:39:08.000000000 -0500 +@@ -394,7 +394,7 @@ static int svc_partial_recvfrom(struct s + int buflen, unsigned int base) + { + size_t save_iovlen; +- void __user *save_iovbase; ++ void *save_iovbase; + unsigned int i; + int ret; + +diff -urNp linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma.c linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma.c +--- linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma.c 2011-11-16 18:39:08.000000000 -0500 +@@ -61,15 +61,15 @@ unsigned int svcrdma_max_req_size = RPCR + 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; +@@ -109,7 +109,7 @@ static int read_reset_stat(ctl_table *ta + 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; +@@ -150,63 +150,63 @@ 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 -urNp linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +--- linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c 2011-11-16 18:39:08.000000000 -0500 +@@ -499,7 +499,7 @@ 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; +@@ -609,7 +609,7 @@ int svc_rdma_recvfrom(struct svc_rqst *r + 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; + } +@@ -629,7 +629,7 @@ int svc_rdma_recvfrom(struct svc_rqst *r + 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 -urNp linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_sendto.c linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_sendto.c +--- linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_sendto.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_sendto.c 2011-11-16 18:39:08.000000000 -0500 +@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdm + 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 -urNp linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_transport.c linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_transport.c +--- linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_transport.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sunrpc/xprtrdma/svc_rdma_transport.c 2011-11-16 18:39:08.000000000 -0500 +@@ -299,7 +299,7 @@ static void rq_cq_reap(struct svcxprt_rd + 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; +@@ -321,7 +321,7 @@ static void rq_cq_reap(struct svcxprt_rd + } + + if (ctxt) +- atomic_inc(&rdma_stat_rq_prod); ++ atomic_inc_unchecked(&rdma_stat_rq_prod); + + set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags); + /* +@@ -393,7 +393,7 @@ static void sq_cq_reap(struct svcxprt_rd + 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 */ +@@ -411,7 +411,7 @@ static void sq_cq_reap(struct svcxprt_rd + } + + 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) +@@ -1273,7 +1273,7 @@ int svc_rdma_send(struct svcxprt_rdma *x + 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 -urNp linux-3.1.1/net/sysctl_net.c linux-3.1.1/net/sysctl_net.c +--- linux-3.1.1/net/sysctl_net.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/sysctl_net.c 2011-11-16 18:40:44.000000000 -0500 +@@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ct + 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 -urNp linux-3.1.1/net/tipc/link.c linux-3.1.1/net/tipc/link.c +--- linux-3.1.1/net/tipc/link.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/tipc/link.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1170,7 +1170,7 @@ static int link_send_sections_long(struc + 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; + +@@ -1214,7 +1214,7 @@ 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) +@@ -1233,7 +1233,7 @@ 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 -urNp linux-3.1.1/net/tipc/msg.c linux-3.1.1/net/tipc/msg.c +--- linux-3.1.1/net/tipc/msg.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/tipc/msg.c 2011-11-16 18:39:08.000000000 -0500 +@@ -99,7 +99,7 @@ int tipc_msg_build(struct tipc_msg *hdr, + 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 -urNp linux-3.1.1/net/tipc/subscr.c linux-3.1.1/net/tipc/subscr.c +--- linux-3.1.1/net/tipc/subscr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/tipc/subscr.c 2011-11-16 18:39:08.000000000 -0500 +@@ -101,7 +101,7 @@ static void subscr_send_event(struct 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 -urNp linux-3.1.1/net/unix/af_unix.c linux-3.1.1/net/unix/af_unix.c +--- linux-3.1.1/net/unix/af_unix.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/unix/af_unix.c 2011-11-16 19:17:17.000000000 -0500 +@@ -767,6 +767,12 @@ static struct sock *unix_find_other(stru + 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; +@@ -787,6 +793,13 @@ static struct sock *unix_find_other(stru + if (u) { + struct dentry *dentry; + dentry = unix_sk(u)->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)->mnt, dentry); + } else +@@ -869,11 +882,18 @@ static int unix_bind(struct socket *sock + 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 -urNp linux-3.1.1/net/wireless/core.h linux-3.1.1/net/wireless/core.h +--- linux-3.1.1/net/wireless/core.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/wireless/core.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/net/wireless/wext-core.c linux-3.1.1/net/wireless/wext-core.c +--- linux-3.1.1/net/wireless/wext-core.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/wireless/wext-core.c 2011-11-16 18:39:08.000000000 -0500 +@@ -746,8 +746,7 @@ static int ioctl_standard_iw_point(struc + */ + + /* 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. +@@ -784,22 +783,6 @@ static int ioctl_standard_iw_point(struc + } + } + +- 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 -urNp linux-3.1.1/net/xfrm/xfrm_policy.c linux-3.1.1/net/xfrm/xfrm_policy.c +--- linux-3.1.1/net/xfrm/xfrm_policy.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/xfrm/xfrm_policy.c 2011-11-16 18:39:08.000000000 -0500 +@@ -299,7 +299,7 @@ static void xfrm_policy_kill(struct xfrm + { + 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 x + 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 + 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 + #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 xf + + 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; + } +@@ -2335,7 +2335,7 @@ static int xfrm_bundle_ok(struct xfrm_ds + 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); +@@ -2870,7 +2870,7 @@ static int xfrm_policy_migrate(struct xf + 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 -urNp linux-3.1.1/net/xfrm/xfrm_user.c linux-3.1.1/net/xfrm/xfrm_user.c +--- linux-3.1.1/net/xfrm/xfrm_user.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/net/xfrm/xfrm_user.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1394,6 +1394,8 @@ static int copy_to_user_tmpl(struct xfrm + struct xfrm_user_tmpl vec[XFRM_MAX_DEPTH]; + int i; + ++ pax_track_stack(); ++ + if (xp->xfrm_nr == 0) + return 0; + +@@ -2062,6 +2064,8 @@ static int xfrm_do_migrate(struct sk_buf + int err; + int n = 0; + ++ pax_track_stack(); ++ + if (attrs[XFRMA_MIGRATE] == NULL) + return -EINVAL; + +diff -urNp linux-3.1.1/scripts/basic/fixdep.c linux-3.1.1/scripts/basic/fixdep.c +--- linux-3.1.1/scripts/basic/fixdep.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/basic/fixdep.c 2011-11-16 18:39:08.000000000 -0500 +@@ -161,7 +161,7 @@ static unsigned int strhash(const char * + /* + * 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, in + + 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++) { +@@ -405,7 +405,7 @@ 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 -urNp linux-3.1.1/scripts/gcc-plugin.sh linux-3.1.1/scripts/gcc-plugin.sh +--- linux-3.1.1/scripts/gcc-plugin.sh 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/scripts/gcc-plugin.sh 2011-11-16 18:39:08.000000000 -0500 +@@ -0,0 +1,2 @@ ++#!/bin/sh ++echo "#include \"gcc-plugin.h\"\n#include \"rtl.h\"" | $1 -x c -shared - -o /dev/null -I`$2 -print-file-name=plugin`/include >/dev/null 2>&1 && echo "y" +diff -urNp linux-3.1.1/scripts/Makefile.build linux-3.1.1/scripts/Makefile.build +--- linux-3.1.1/scripts/Makefile.build 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/Makefile.build 2011-11-16 18:40:44.000000000 -0500 +@@ -109,7 +109,7 @@ endif + endif + + # Do not include host rules unless needed +-ifneq ($(hostprogs-y)$(hostprogs-m),) ++ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m),) + include scripts/Makefile.host + endif + +diff -urNp linux-3.1.1/scripts/Makefile.clean linux-3.1.1/scripts/Makefile.clean +--- linux-3.1.1/scripts/Makefile.clean 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/Makefile.clean 2011-11-16 18:39:08.000000000 -0500 +@@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subd + __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 -urNp linux-3.1.1/scripts/Makefile.host linux-3.1.1/scripts/Makefile.host +--- linux-3.1.1/scripts/Makefile.host 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/Makefile.host 2011-11-16 18:39:08.000000000 -0500 +@@ -31,6 +31,7 @@ + # Note: Shared libraries consisting of C++ files are not supported + + __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) ++__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m)) + + # C code + # Executables compiled from a single .c file +@@ -54,6 +55,7 @@ host-cxxobjs := $(sort $(foreach m,$(hos + # 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))) + # Remove .so files from "xxx-objs" + host-cobjs := $(filter-out %.so,$(host-cobjs)) + +diff -urNp linux-3.1.1/scripts/mod/file2alias.c linux-3.1.1/scripts/mod/file2alias.c +--- linux-3.1.1/scripts/mod/file2alias.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/mod/file2alias.c 2011-11-16 18:39:08.000000000 -0500 +@@ -72,7 +72,7 @@ static void device_id_check(const char * + 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) +@@ -102,7 +102,7 @@ static void device_id_check(const char * + /* 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) + { +@@ -203,7 +203,7 @@ static void do_usb_entry_multi(struct us + { + 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); +@@ -437,7 +437,7 @@ static void do_pnp_device_entry(void *sy + 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); +@@ -467,7 +467,7 @@ static void do_pnp_card_entries(void *sy + + 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]) +@@ -493,7 +493,7 @@ static void do_pnp_card_entries(void *sy + /* 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); +@@ -786,7 +786,7 @@ static void dmi_ascii_filter(char *d, co + 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 -urNp linux-3.1.1/scripts/mod/modpost.c linux-3.1.1/scripts/mod/modpost.c +--- linux-3.1.1/scripts/mod/modpost.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/mod/modpost.c 2011-11-16 18:39:08.000000000 -0500 +@@ -919,6 +919,7 @@ enum mismatch { + ANY_INIT_TO_ANY_EXIT, + ANY_EXIT_TO_ANY_INIT, + EXPORT_TO_INIT_EXIT, ++ DATA_TO_TEXT + }; + + struct sectioncheck { +@@ -1027,6 +1028,12 @@ 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 + } + }; + +@@ -1149,10 +1156,10 @@ static Elf_Sym *find_elf_symbol(struct e + 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) { +@@ -1431,6 +1438,14 @@ static void report_sec_mismatch(const ch + 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"); + } +@@ -1656,7 +1671,7 @@ static void section_rel(const char *modn + 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 */ +@@ -1754,7 +1769,7 @@ void __attribute__((format(printf, 2, 3) + 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; +@@ -1966,7 +1981,7 @@ static void write_if_changed(struct buff + 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 -urNp linux-3.1.1/scripts/mod/modpost.h linux-3.1.1/scripts/mod/modpost.h +--- linux-3.1.1/scripts/mod/modpost.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/mod/modpost.h 2011-11-16 18:39:08.000000000 -0500 +@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *e + + 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 -urNp linux-3.1.1/scripts/mod/sumversion.c linux-3.1.1/scripts/mod/sumversion.c +--- linux-3.1.1/scripts/mod/sumversion.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/mod/sumversion.c 2011-11-16 18:39:08.000000000 -0500 +@@ -470,7 +470,7 @@ static void write_version(const char *fi + 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 -urNp linux-3.1.1/scripts/pnmtologo.c linux-3.1.1/scripts/pnmtologo.c +--- linux-3.1.1/scripts/pnmtologo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/scripts/pnmtologo.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/security/apparmor/lsm.c linux-3.1.1/security/apparmor/lsm.c +--- linux-3.1.1/security/apparmor/lsm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/apparmor/lsm.c 2011-11-16 18:40:44.000000000 -0500 +@@ -621,7 +621,7 @@ static int apparmor_task_setrlimit(struc + 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 -urNp linux-3.1.1/security/commoncap.c linux-3.1.1/security/commoncap.c +--- linux-3.1.1/security/commoncap.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/commoncap.c 2011-11-16 18:40:44.000000000 -0500 +@@ -28,6 +28,7 @@ + #include <linux/prctl.h> + #include <linux/securebits.h> + #include <linux/user_namespace.h> ++#include <net/sock.h> + + /* + * If a non-root user executes a setuid-root binary in +@@ -58,7 +59,7 @@ int cap_netlink_send(struct sock *sk, st + + int cap_netlink_recv(struct sk_buff *skb, int cap) + { +- if (!cap_raised(current_cap(), cap)) ++ if (!cap_raised(current_cap(), cap) || !gr_is_capable(cap)) + return -EPERM; + return 0; + } +@@ -575,6 +576,9 @@ int cap_bprm_secureexec(struct linux_bin + { + 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 -urNp linux-3.1.1/security/integrity/ima/ima_api.c linux-3.1.1/security/integrity/ima/ima_api.c +--- linux-3.1.1/security/integrity/ima/ima_api.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/integrity/ima/ima_api.c 2011-11-16 18:39:08.000000000 -0500 +@@ -75,7 +75,7 @@ void ima_add_violation(struct inode *ino + 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 -urNp linux-3.1.1/security/integrity/ima/ima_fs.c linux-3.1.1/security/integrity/ima/ima_fs.c +--- linux-3.1.1/security/integrity/ima/ima_fs.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/integrity/ima/ima_fs.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/security/integrity/ima/ima.h linux-3.1.1/security/integrity/ima/ima.h +--- linux-3.1.1/security/integrity/ima/ima.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/integrity/ima/ima.h 2011-11-16 18:39:08.000000000 -0500 +@@ -85,8 +85,8 @@ void ima_add_violation(struct inode *ino + 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 -urNp linux-3.1.1/security/integrity/ima/ima_queue.c linux-3.1.1/security/integrity/ima/ima_queue.c +--- linux-3.1.1/security/integrity/ima/ima_queue.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/integrity/ima/ima_queue.c 2011-11-16 18:39:08.000000000 -0500 +@@ -79,7 +79,7 @@ static int ima_add_digest_entry(struct i + 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 -urNp linux-3.1.1/security/Kconfig linux-3.1.1/security/Kconfig +--- linux-3.1.1/security/Kconfig 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/Kconfig 2011-11-16 18:40:44.000000000 -0500 +@@ -4,6 +4,558 @@ + + menu "Security options" + ++source grsecurity/Kconfig ++ ++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" ++ 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' ++ select PAX_PT_PAX_FLAGS ++ 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 support as it ++ is 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' ++ 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 support. ++ ++ Note that if you enable PT_PAX_FLAGS marking support as well, ++ the PT_PAX_FLAG marks will override the legacy EI_PAX marks. ++ ++config PAX_PT_PAX_FLAGS ++ bool 'Use ELF program header marking' ++ 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 your toolchain does not support PT_PAX_FLAGS markings, ++ you can create one in most cases with 'paxctl -C'. ++ ++ 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. ++ ++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" ++ depends on (PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS) && (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" ++ 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" ++ 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()" ++ 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)" ++ depends on PAX_MPROTECT ++ default n ++ 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" ++ 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. ++ ++config PAX_KERNEXEC_MODULE_TEXT ++ int "Minimum amount of memory reserved for module code" ++ default "4" ++ 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" ++ depends on PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS ++ 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" ++ 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" ++ 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" ++ 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" ++ 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" ++ 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 (cross compilation ++ is not supported). 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" ++ 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" ++ depends on GRKERNSEC && (X86 || SPARC64) ++ 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" ++ 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. ++ ++endmenu ++ ++endmenu ++ + config KEYS + bool "Enable access key retention support" + help +@@ -167,7 +719,7 @@ 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 -urNp linux-3.1.1/security/keys/compat.c linux-3.1.1/security/keys/compat.c +--- linux-3.1.1/security/keys/compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/keys/compat.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/security/keys/keyctl.c linux-3.1.1/security/keys/keyctl.c +--- linux-3.1.1/security/keys/keyctl.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/keys/keyctl.c 2011-11-16 18:39:08.000000000 -0500 +@@ -921,7 +921,7 @@ static int keyctl_change_reqkey_auth(str + /* + * 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--) { +@@ -943,7 +943,7 @@ static long copy_from_user_iovec(void *b + * 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) +@@ -1038,7 +1038,7 @@ long keyctl_instantiate_key(key_serial_t + [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); +@@ -1071,7 +1071,7 @@ long keyctl_instantiate_key_iov(key_seri + 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 -urNp linux-3.1.1/security/keys/keyring.c linux-3.1.1/security/keys/keyring.c +--- linux-3.1.1/security/keys/keyring.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/keys/keyring.c 2011-11-16 18:39:08.000000000 -0500 +@@ -214,15 +214,15 @@ static long keyring_read(const struct ke + 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 -urNp linux-3.1.1/security/min_addr.c linux-3.1.1/security/min_addr.c +--- linux-3.1.1/security/min_addr.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/min_addr.c 2011-11-16 18:40:44.000000000 -0500 +@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG + */ + 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 -urNp linux-3.1.1/security/security.c linux-3.1.1/security/security.c +--- linux-3.1.1/security/security.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/security.c 2011-11-16 18:40:44.000000000 -0500 +@@ -25,8 +25,8 @@ static __initdata char chosen_lsm[SECURI + /* things that live in capability.c */ + extern void __init security_fixup_ops(struct security_operations *ops); + +-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", + }; + +@@ -67,7 +67,9 @@ 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 -urNp linux-3.1.1/security/selinux/hooks.c linux-3.1.1/security/selinux/hooks.c +--- linux-3.1.1/security/selinux/hooks.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/selinux/hooks.c 2011-11-16 18:40:44.000000000 -0500 +@@ -93,7 +93,6 @@ + #define NUM_SEL_MNT_OPTS 5 + + extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm); +-extern struct security_operations *security_ops; + + /* SECMARK reference count */ + atomic_t selinux_secmark_refcount = ATOMIC_INIT(0); +@@ -5455,7 +5454,7 @@ static int selinux_key_getsecurity(struc + + #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 -urNp linux-3.1.1/security/selinux/include/xfrm.h linux-3.1.1/security/selinux/include/xfrm.h +--- linux-3.1.1/security/selinux/include/xfrm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/selinux/include/xfrm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -48,7 +48,7 @@ int selinux_xfrm_decode_session(struct s + + 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 -urNp linux-3.1.1/security/selinux/ss/services.c linux-3.1.1/security/selinux/ss/services.c +--- linux-3.1.1/security/selinux/ss/services.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/selinux/ss/services.c 2011-11-16 18:40:44.000000000 -0500 +@@ -1814,6 +1814,8 @@ int security_load_policy(void *data, siz + int rc = 0; + struct policy_file file = { data, len }, *fp = &file; + ++ pax_track_stack(); ++ + if (!ss_initialized) { + avtab_cache_init(); + rc = policydb_read(&policydb, fp); +diff -urNp linux-3.1.1/security/smack/smack_lsm.c linux-3.1.1/security/smack/smack_lsm.c +--- linux-3.1.1/security/smack/smack_lsm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/smack/smack_lsm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -3393,7 +3393,7 @@ static int smack_inode_getsecctx(struct + return 0; + } + +-struct security_operations smack_ops = { ++struct security_operations smack_ops __read_only = { + .name = "smack", + + .ptrace_access_check = smack_ptrace_access_check, +diff -urNp linux-3.1.1/security/tomoyo/tomoyo.c linux-3.1.1/security/tomoyo/tomoyo.c +--- linux-3.1.1/security/tomoyo/tomoyo.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/security/tomoyo/tomoyo.c 2011-11-16 18:39:08.000000000 -0500 +@@ -446,7 +446,7 @@ static int tomoyo_sb_pivotroot(struct pa + * 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 -urNp linux-3.1.1/sound/aoa/codecs/onyx.c linux-3.1.1/sound/aoa/codecs/onyx.c +--- linux-3.1.1/sound/aoa/codecs/onyx.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/aoa/codecs/onyx.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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_i + 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_ + 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 -urNp linux-3.1.1/sound/aoa/codecs/onyx.h linux-3.1.1/sound/aoa/codecs/onyx.h +--- linux-3.1.1/sound/aoa/codecs/onyx.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/aoa/codecs/onyx.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/core/oss/pcm_oss.c linux-3.1.1/sound/core/oss/pcm_oss.c +--- linux-3.1.1/sound/core/oss/pcm_oss.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/core/oss/pcm_oss.c 2011-11-16 18:39:08.000000000 -0500 +@@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(str + 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(stru + 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 + 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 + } + } 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 + 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 + 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_p + 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 -urNp linux-3.1.1/sound/core/pcm_compat.c linux-3.1.1/sound/core/pcm_compat.c +--- linux-3.1.1/sound/core/pcm_compat.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/core/pcm_compat.c 2011-11-16 18:39:08.000000000 -0500 +@@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(st + 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 -urNp linux-3.1.1/sound/core/pcm_native.c linux-3.1.1/sound/core/pcm_native.c +--- linux-3.1.1/sound/core/pcm_native.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/core/pcm_native.c 2011-11-16 18:39:08.000000000 -0500 +@@ -2770,11 +2770,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_ + 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 -urNp linux-3.1.1/sound/core/seq/seq_device.c linux-3.1.1/sound/core/seq/seq_device.c +--- linux-3.1.1/sound/core/seq/seq_device.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/core/seq/seq_device.c 2011-11-16 18:39:08.000000000 -0500 +@@ -63,7 +63,7 @@ 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 */ +@@ -332,7 +332,7 @@ int snd_seq_device_register_driver(char + + mutex_lock(&ops->reg_mutex); + /* copy driver operators */ +- ops->ops = *entry; ++ ops->ops = entry; + ops->driver |= DRIVER_LOADED; + ops->argsize = argsize; + +@@ -462,7 +462,7 @@ static int init_device(struct snd_seq_de + 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 { +@@ -489,7 +489,7 @@ static int free_device(struct snd_seq_de + 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 -urNp linux-3.1.1/sound/drivers/mts64.c linux-3.1.1/sound/drivers/mts64.c +--- linux-3.1.1/sound/drivers/mts64.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/drivers/mts64.c 2011-11-16 18:39:08.000000000 -0500 +@@ -28,6 +28,7 @@ + #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" +@@ -66,7 +67,7 @@ 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]; +@@ -696,7 +697,7 @@ static int snd_mts64_rawmidi_open(struct + { + 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 */ +@@ -704,7 +705,7 @@ static int snd_mts64_rawmidi_open(struct + + msleep(50); + } +- ++(mts->open_count); ++ local_inc(&mts->open_count); + + return 0; + } +@@ -714,8 +715,7 @@ static int snd_mts64_rawmidi_close(struc + 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); +@@ -724,8 +724,8 @@ static int snd_mts64_rawmidi_close(struc + + 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 -urNp linux-3.1.1/sound/drivers/opl4/opl4_lib.c linux-3.1.1/sound/drivers/opl4/opl4_lib.c +--- linux-3.1.1/sound/drivers/opl4/opl4_lib.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/drivers/opl4/opl4_lib.c 2011-11-16 18:39:08.000000000 -0500 +@@ -28,7 +28,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ + 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 -urNp linux-3.1.1/sound/drivers/portman2x4.c linux-3.1.1/sound/drivers/portman2x4.c +--- linux-3.1.1/sound/drivers/portman2x4.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/drivers/portman2x4.c 2011-11-16 18:39:08.000000000 -0500 +@@ -47,6 +47,7 @@ + #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" +@@ -84,7 +85,7 @@ 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 -urNp linux-3.1.1/sound/firewire/amdtp.c linux-3.1.1/sound/firewire/amdtp.c +--- linux-3.1.1/sound/firewire/amdtp.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/firewire/amdtp.c 2011-11-16 18:39:08.000000000 -0500 +@@ -371,7 +371,7 @@ static void queue_out_packet(struct amdt + 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 -urNp linux-3.1.1/sound/firewire/amdtp.h linux-3.1.1/sound/firewire/amdtp.h +--- linux-3.1.1/sound/firewire/amdtp.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/firewire/amdtp.h 2011-11-16 18:39:08.000000000 -0500 +@@ -146,7 +146,7 @@ static inline void amdtp_out_stream_pcm_ + 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 -urNp linux-3.1.1/sound/firewire/isight.c linux-3.1.1/sound/firewire/isight.c +--- linux-3.1.1/sound/firewire/isight.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/firewire/isight.c 2011-11-16 18:39:08.000000000 -0500 +@@ -97,7 +97,7 @@ static void isight_update_pointers(struc + 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) { +@@ -308,7 +308,7 @@ static int isight_hw_params(struct snd_p + if (err < 0) + return err; + +- ACCESS_ONCE(isight->pcm_active) = true; ++ ACCESS_ONCE_RW(isight->pcm_active) = true; + + return 0; + } +@@ -341,7 +341,7 @@ static int isight_hw_free(struct snd_pcm + { + 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); +@@ -434,10 +434,10 @@ static int isight_trigger(struct snd_pcm + + 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 -urNp linux-3.1.1/sound/isa/cmi8330.c linux-3.1.1/sound/isa/cmi8330.c +--- linux-3.1.1/sound/isa/cmi8330.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/isa/cmi8330.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/oss/sb_audio.c linux-3.1.1/sound/oss/sb_audio.c +--- linux-3.1.1/sound/oss/sb_audio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/oss/sb_audio.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/oss/swarm_cs4297a.c linux-3.1.1/sound/oss/swarm_cs4297a.c +--- linux-3.1.1/sound/oss/swarm_cs4297a.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/oss/swarm_cs4297a.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/pci/hda/hda_codec.h linux-3.1.1/sound/pci/hda/hda_codec.h +--- linux-3.1.1/sound/pci/hda/hda_codec.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/pci/hda/hda_codec.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/pci/ice1712/ice1712.h linux-3.1.1/sound/pci/ice1712/ice1712.h +--- linux-3.1.1/sound/pci/ice1712/ice1712.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/pci/ice1712/ice1712.h 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/sound/pci/ymfpci/ymfpci_main.c linux-3.1.1/sound/pci/ymfpci/ymfpci_main.c +--- linux-3.1.1/sound/pci/ymfpci/ymfpci_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/pci/ymfpci/ymfpci_main.c 2011-11-16 18:39:08.000000000 -0500 +@@ -202,8 +202,8 @@ static void snd_ymfpci_hw_stop(struct sn + 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: +@@ -787,7 +787,7 @@ static void snd_ymfpci_irq_wait(struct s + 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); + } +@@ -825,8 +825,8 @@ static irqreturn_t snd_ymfpci_interrupt( + 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); + } + } +@@ -2363,7 +2363,7 @@ int __devinit snd_ymfpci_create(struct s + 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 -urNp linux-3.1.1/sound/soc/soc-pcm.c linux-3.1.1/sound/soc/soc-pcm.c +--- linux-3.1.1/sound/soc/soc-pcm.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/soc/soc-pcm.c 2011-11-16 18:39:08.000000000 -0500 +@@ -568,7 +568,7 @@ static snd_pcm_uframes_t soc_pcm_pointer + } + + /* ASoC PCM operations */ +-static struct snd_pcm_ops soc_pcm_ops = { ++static snd_pcm_ops_no_const soc_pcm_ops = { + .open = soc_pcm_open, + .close = soc_pcm_close, + .hw_params = soc_pcm_hw_params, +diff -urNp linux-3.1.1/sound/usb/card.h linux-3.1.1/sound/usb/card.h +--- linux-3.1.1/sound/usb/card.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/sound/usb/card.h 2011-11-16 18:39:08.000000000 -0500 +@@ -44,6 +44,7 @@ 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; +@@ -93,7 +94,7 @@ 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) */ + }; + + struct snd_usb_stream { +diff -urNp linux-3.1.1/tools/gcc/checker_plugin.c linux-3.1.1/tools/gcc/checker_plugin.c +--- linux-3.1.1/tools/gcc/checker_plugin.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/checker_plugin.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/tools/gcc/constify_plugin.c linux-3.1.1/tools/gcc/constify_plugin.c +--- linux-3.1.1/tools/gcc/constify_plugin.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/constify_plugin.c 2011-11-16 18:39:08.000000000 -0500 +@@ -0,0 +1,303 @@ ++/* ++ * 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 = "201111150100", ++ .help = "no-constify\tturn off constification\n", ++}; ++ ++static void constify_type(tree type); ++static bool walk_struct(tree node); ++ ++static tree deconstify_type(tree old_type) ++{ ++ tree new_type, field; ++ ++ 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; ++ TYPE_READONLY(new_type) = 0; ++ C_TYPE_FIELDS_READONLY(new_type) = 0; ++ return 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) { ++ TREE_TYPE(*node) = deconstify_type(type); ++ TREE_READONLY(*node) = 0; ++ return NULL_TREE; ++ } ++ ++ return NULL_TREE; ++} ++ ++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 __GNUC__ > 4 || __GNUC_MINOR__ >= 7 ++ .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 __GNUC__ > 4 || __GNUC_MINOR__ >= 7 ++ .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 void constify_type(tree type) ++{ ++ TYPE_READONLY(type) = 1; ++ C_TYPE_FIELDS_READONLY(type) = 1; ++} ++ ++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 (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) ++ return false; ++ ++ if (TYPE_FIELDS(node) == NULL_TREE) ++ 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 __GNUC__ == 4 && __GNUC_MINOR__ == 5 ++ 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("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 -urNp linux-3.1.1/tools/gcc/kallocstat_plugin.c linux-3.1.1/tools/gcc/kallocstat_plugin.c +--- linux-3.1.1/tools/gcc/kallocstat_plugin.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/kallocstat_plugin.c 2011-11-16 18:39:08.000000000 -0500 +@@ -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 -urNp linux-3.1.1/tools/gcc/kernexec_plugin.c linux-3.1.1/tools/gcc/kernexec_plugin.c +--- linux-3.1.1/tools/gcc/kernexec_plugin.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/kernexec_plugin.c 2011-11-16 18:39:08.000000000 -0500 +@@ -0,0 +1,275 @@ ++/* ++ * 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 = "201111150100", ++}; ++ ++static unsigned int execute_kernexec_fptr(void); ++static unsigned int execute_kernexec_retaddr(void); ++static bool kernexec_cmodel_check(void); ++ ++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: 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(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, NULL); ++ add_referenced_var(intptr); ++ mark_sym_for_renaming(intptr); ++ assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr)); ++ update_stmt(assign_intptr); ++ gsi_insert_before(&gsi, assign_intptr, GSI_SAME_STMT); ++ ++ // 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)); ++ update_stmt(assign_intptr); ++ gsi_insert_before(&gsi, assign_intptr, GSI_SAME_STMT); ++ ++ // cast temporary unsigned long back to a temporary fptr variable ++ new_fptr = create_tmp_var(TREE_TYPE(old_fptr), NULL); ++ 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)); ++ update_stmt(assign_new_fptr); ++ gsi_insert_before(&gsi, assign_new_fptr, GSI_SAME_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; ++ gimple_stmt_iterator gsi; ++ ++ // 1. loop through BBs and GIMPLE statements ++ FOR_EACH_BB(bb) { ++ 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(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; ++ emit_insn_before(btsq, 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_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); ++ ++ 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_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info); ++ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info); ++ ++ return 0; ++} +diff -urNp linux-3.1.1/tools/gcc/Makefile linux-3.1.1/tools/gcc/Makefile +--- linux-3.1.1/tools/gcc/Makefile 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/Makefile 2011-11-16 20:37:08.000000000 -0500 +@@ -0,0 +1,21 @@ ++#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 ++ ++HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include ++ ++hostlibs-y := constify_plugin.so ++hostlibs-$(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 ++ ++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 +diff -urNp linux-3.1.1/tools/gcc/stackleak_plugin.c linux-3.1.1/tools/gcc/stackleak_plugin.c +--- linux-3.1.1/tools/gcc/stackleak_plugin.c 1969-12-31 19:00:00.000000000 -0500 ++++ linux-3.1.1/tools/gcc/stackleak_plugin.c 2011-11-16 18:39:08.000000000 -0500 +@@ -0,0 +1,291 @@ ++/* ++ * 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 = "201111150100", ++ .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 fndecl, fntype, alloca_size; ++ ++ // insert call to void pax_check_alloca(unsigned long 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 ++ 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_CONTINUE_LINKING); ++} ++ ++static void stackleak_add_instrumentation(gimple_stmt_iterator gsi) ++{ ++ gimple track_stack; ++ tree fndecl, fntype; ++ ++ // insert call to void pax_track_stack(void) ++ fntype = build_function_type_list(void_type_node, NULL_TREE); ++ fndecl = build_fn_decl(track_function, fntype); ++ DECL_ASSEMBLER_NAME(fndecl); // for LTO ++ track_stack = gimple_build_call(fndecl, 0); ++ gsi_insert_after(&gsi, track_stack, GSI_CONTINUE_LINKING); ++} ++ ++#if __GNUC__ == 4 && __GNUC_MINOR__ == 5 ++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 __GNUC__ > 4 || __GNUC_MINOR__ >= 7 ++ 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; ++ ++ 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 match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450> ++ if (!is_alloca(gsi_stmt(gsi))) ++ 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; ++ } ++ } ++ ++ // 4. insert track call at the beginning ++ if (!prologue_instrumented) { ++ 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); ++ stackleak_add_instrumentation(gsi_start_bb(bb)); ++ } ++ ++ 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 __GNUC__ > 4 || __GNUC_MINOR__ >= 7 ++ 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_AFTER ++ }; ++ 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 -urNp linux-3.1.1/tools/perf/util/include/asm/alternative-asm.h linux-3.1.1/tools/perf/util/include/asm/alternative-asm.h +--- linux-3.1.1/tools/perf/util/include/asm/alternative-asm.h 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/tools/perf/util/include/asm/alternative-asm.h 2011-11-16 18:39:08.000000000 -0500 +@@ -5,4 +5,7 @@ + + #define altinstruction_entry # + ++ .macro pax_force_retaddr rip=0 ++ .endm ++ + #endif +diff -urNp linux-3.1.1/usr/gen_init_cpio.c linux-3.1.1/usr/gen_init_cpio.c +--- linux-3.1.1/usr/gen_init_cpio.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/usr/gen_init_cpio.c 2011-11-16 18:39:08.000000000 -0500 +@@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, + 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_ + *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 -urNp linux-3.1.1/virt/kvm/kvm_main.c linux-3.1.1/virt/kvm/kvm_main.c +--- linux-3.1.1/virt/kvm/kvm_main.c 2011-11-11 15:19:27.000000000 -0500 ++++ linux-3.1.1/virt/kvm/kvm_main.c 2011-11-16 18:39:08.000000000 -0500 +@@ -73,7 +73,7 @@ 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); +@@ -2266,7 +2266,7 @@ static void hardware_enable_nolock(void + + 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); + } +@@ -2320,10 +2320,10 @@ 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; + } +@@ -2588,7 +2588,7 @@ static void kvm_sched_out(struct preempt + 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; +@@ -2651,7 +2651,7 @@ int kvm_init(void *opaque, unsigned vcpu + 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; +@@ -2661,9 +2661,11 @@ int kvm_init(void *opaque, unsigned vcpu + 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/linux-3.0-bridge-no-carrier.patch b/kernel/patches/linux-3.0-bridge-no-carrier.patch deleted file mode 100644 index 42f2010..0000000 --- a/kernel/patches/linux-3.0-bridge-no-carrier.patch +++ /dev/null @@ -1,44 +0,0 @@ -From b64b73d7d0c480f75684519c6134e79d50c1b341 Mon Sep 17 00:00:00 2001 -From: stephen hemminger <shemminger(a)vyatta.com> -Date: Mon, 3 Oct 2011 18:14:45 +0000 -Subject: [PATCH] bridge: leave carrier on for empty bridge - -This resolves a regression seen by some users of bridging. -Some users use the bridge like a dummy device. -They expect to be able to put an IPv6 address on the device -with no ports attached. Although there are better ways of doing -this, there is no reason to not allow it. - -Note: the bridge still will reflect the state of ports in the -bridge if there are any added. - -Signed-off-by: Stephen Hemminger <shemminger(a)vyatta.com> -Signed-off-by: David S. Miller <davem(a)davemloft.net> ---- - net/bridge/br_device.c | 3 --- - 1 files changed, 0 insertions(+), 3 deletions(-) - -diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c -index 32b8f9f..ff3ed60 100644 ---- a/net/bridge/br_device.c -+++ b/net/bridge/br_device.c -@@ -91,7 +91,6 @@ static int br_dev_open(struct net_device *dev) - { - struct net_bridge *br = netdev_priv(dev); - -- netif_carrier_off(dev); - netdev_update_features(dev); - netif_start_queue(dev); - br_stp_enable_bridge(br); -@@ -108,8 +107,6 @@ static int br_dev_stop(struct net_device *dev) - { - struct net_bridge *br = netdev_priv(dev); - -- netif_carrier_off(dev); -- - br_stp_disable_bridge(br); - br_multicast_stop(br); - --- -1.7.6.2 - diff --git a/kernel/systemd/cpupower.service b/kernel/systemd/cpupower.service new file mode 100644 index 0000000..73d1038 --- /dev/null +++ b/kernel/systemd/cpupower.service @@ -0,0 +1,12 @@ +[Unit] +Description=Configure CPU power related settings +After=syslog.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=/usr/bin/cpupower frequency-set -g performance +ExecStop=/usr/bin/cpupower frequency-set -g ondemand + +[Install] +WantedBy=multi-user.target hooks/post-receive -- IPFire 3.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, next, updated. 70257827c55b64bce738a7bf8343ca019d62ec9b
by git＠ipfire.org 18 Nov '11

18 Nov '11

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, next has been updated via 70257827c55b64bce738a7bf8343ca019d62ec9b (commit) from c5a1afdcd9ceb098c1c569f9d3c3195f181cdcbf (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 70257827c55b64bce738a7bf8343ca019d62ec9b Author: Michael Tremer <michael.tremer(a)ipfire.org> Date: Fri Nov 18 14:33:46 2011 +0100 fireinfo: Update to 2.1.3. ----------------------------------------------------------------------- Summary of changes: lfs/fireinfo | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) Difference in files: diff --git a/lfs/fireinfo b/lfs/fireinfo index 3b703cb..26c195d 100644 --- a/lfs/fireinfo +++ b/lfs/fireinfo @@ -24,7 +24,7 @@ include Config -VER = 2.1.2 +VER = 2.1.3 THISAPP = fireinfo-v$(VER) DL_FILE = $(THISAPP).tar.gz @@ -40,7 +40,7 @@ objects = $(DL_FILE) $(DL_FILE) = $(DL_FROM)/$(DL_FILE) -$(DL_FILE)_MD5 = e9e58b66f6760391f6d63a8163f0bfa8 +$(DL_FILE)_MD5 = 8c977d1b8b0743ea0d244d1d8f86598a install : $(TARGET) hooks/post-receive -- IPFire 2.x development tree

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[IPFire-SCM] [git.ipfire.org] IPFire 2.x development tree branch, next, updated. c5a1afdcd9ceb098c1c569f9d3c3195f181cdcbf
by git＠ipfire.org 18 Nov '11

18 Nov '11

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, next has been updated via c5a1afdcd9ceb098c1c569f9d3c3195f181cdcbf (commit) via 7fbc483a76456ca7620c96c8d1dcf7b3a7cb8bc9 (commit) from 1ba26859643db0ec9ca7b3e6f1f78fb708eced33 (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 c5a1afdcd9ceb098c1c569f9d3c3195f181cdcbf Merge: 7fbc483 1ba2685 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Fri Nov 18 08:00:15 2011 +0100 Merge branch 'next' of arne_f@git.ipfire.org:/pub/git/ipfire-2.x into next commit 7fbc483a76456ca7620c96c8d1dcf7b3a7cb8bc9 Author: Arne Fitzenreiter <arne_f(a)ipfire.org> Date: Fri Nov 18 07:59:19 2011 +0100 kernel: fix ssb modules build on arm. ----------------------------------------------------------------------- Summary of changes: .../kernel/kernel.config.armv5tel-ipfire-kirkwood | 2 +- .../kernel/kernel.config.armv5tel-ipfire-versatile | 2 +- lfs/compat-wireless | 4 ++-- lfs/linux | 3 +++ ...6.32.45_align_ssb_modtable_32bit_boundary.patch | 12 ++++++++++++ 5 files changed, 19 insertions(+), 4 deletions(-) create mode 100644 src/patches/linux-2.6.32.45_align_ssb_modtable_32bit_boundary.patch Difference in files: diff --git a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood index 13a80e5..bddf86b 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood +++ b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood @@ -1308,7 +1308,7 @@ CONFIG_NET_PCI=y CONFIG_PCNET32=m CONFIG_AMD8111_ETH=m CONFIG_ADAPTEC_STARFIRE=m -# CONFIG_B44 is not set +CONFIG_B44=m CONFIG_FORCEDETH=m # CONFIG_FORCEDETH_NAPI is not set CONFIG_E100=m diff --git a/config/kernel/kernel.config.armv5tel-ipfire-versatile b/config/kernel/kernel.config.armv5tel-ipfire-versatile index 487e5e7..6bdf4c5 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-versatile +++ b/config/kernel/kernel.config.armv5tel-ipfire-versatile @@ -1294,7 +1294,7 @@ CONFIG_NET_PCI=y CONFIG_PCNET32=m CONFIG_AMD8111_ETH=m CONFIG_ADAPTEC_STARFIRE=m -# CONFIG_B44 is not set +CONFIG_B44=m CONFIG_FORCEDETH=m # CONFIG_FORCEDETH_NAPI is not set CONFIG_E100=m diff --git a/lfs/compat-wireless b/lfs/compat-wireless index 27fb02b..a8902f1 100644 --- a/lfs/compat-wireless +++ b/lfs/compat-wireless @@ -91,8 +91,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) ifeq "$(MACHINE_TYPE)" "arm" # B43+B44 driver doesn't build on arm - cd $(DIR_APP) && sed -i -e "s|CONFIG_B43=m||g" config.mk - cd $(DIR_APP) && sed -i -e "s|CONFIG_B44=m||g" config.mk +# cd $(DIR_APP) && sed -i -e "s|CONFIG_B43=m||g" config.mk +# cd $(DIR_APP) && sed -i -e "s|CONFIG_B44=m||g" config.mk # Add libartas uAP driver cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/compat-wireless-3.0-libertas_uap.patch cd $(DIR_APP)&& echo CONFIG_LIBERTAS_UAP=m >> config.mk diff --git a/lfs/linux b/lfs/linux index 8326023..b8d0dd8 100644 --- a/lfs/linux +++ b/lfs/linux @@ -168,6 +168,9 @@ ifeq "$(KCFG)" "-kirkwood" cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.45-arm_kirkwood_setups.patch endif +ifeq "$(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 diff --git a/src/patches/linux-2.6.32.45_align_ssb_modtable_32bit_boundary.patch b/src/patches/linux-2.6.32.45_align_ssb_modtable_32bit_boundary.patch new file mode 100644 index 0000000..e9b8b82 --- /dev/null +++ b/src/patches/linux-2.6.32.45_align_ssb_modtable_32bit_boundary.patch @@ -0,0 +1,12 @@ +diff -Naur linux-2.6.32.45.org/include/linux/mod_devicetable.h linux-2.6.32.45/include/linux/mod_devicetable.h +--- linux-2.6.32.45.org/include/linux/mod_devicetable.h 2011-08-16 03:57:37.000000000 +0200 ++++ linux-2.6.32.45/include/linux/mod_devicetable.h 2011-11-17 15:07:43.366023632 +0100 +@@ -364,7 +364,7 @@ + __u16 vendor; /* Vendor or SDIO_ANY_ID */ + __u16 device; /* Device ID or SDIO_ANY_ID */ + kernel_ulong_t driver_data /* Data private to the driver */ +- __attribute__((aligned(sizeof(kernel_ulong_t)))); ++ __attribute__((aligned(sizeof(__u32)))); /* align to 32bit boundary */ + }; + + /* SSB core, see drivers/ssb/ */ hooks/post-receive -- IPFire 2.x development tree

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IPFire-SCM November 2011