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linux-sg2042/fs/proc
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Djalal Harouni bc452b4b65 proc: do not allow negative offsets on /proc/<pid>/environ 
__mem_open() which is called by both /proc/<pid>/environ and
/proc/<pid>/mem ->open() handlers will allow the use of negative offsets.
/proc/<pid>/mem has negative offsets but not /proc/<pid>/environ.

Clean this by moving the 'force FMODE_UNSIGNED_OFFSET flag' to mem_open()
to allow negative offsets only on /proc/<pid>/mem.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Brad Spengler <spender@grsecurity.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-07-30 17:25:20 -07:00
..
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile ns: proc files for namespace naming policy. 2011-05-10 14:31:44 -07:00
array.c c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat 2012-05-31 17:49:32 -07:00
base.c proc: do not allow negative offsets on /proc/<pid>/environ 2012-07-30 17:25:20 -07:00
cmdline.c proc: switch /proc/cmdline to seq_file 2008-10-23 14:29:04 +04:00
consoles.c console: rename acquire/release_console_sem() to console_lock/unlock() 2011-01-26 10:50:06 +10:00
cpuinfo.c proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c 2008-10-23 15:05:11 +04:00
devices.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
generic.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
inode.c avoid iput() from flusher thread 2012-05-28 09:54:45 -07:00
internal.h stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
interrupts.c proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c 2008-10-23 15:15:46 +04:00
kcore.c fs/proc/kcore.c: make get_sparsemem_vmemmap_info() static 2012-03-23 16:58:42 -07:00
kmsg.c procfs: Use generic_file_llseek in /proc/kmsg 2010-04-09 16:35:41 +02:00
loadavg.c sched, timers: cleanup avenrun users 2009-05-15 15:32:45 +02:00
meminfo.c fs/proc/meminfo.c: fix compilation error 2011-12-09 07:50:28 -08:00
mmu.c fs/proc/mmu.c: headers butchery 2007-10-17 08:42:48 -07:00
namespaces.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
nommu.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
page.c pagemap: export KPF_THP 2012-03-21 17:54:57 -07:00
proc_devtree.c of: Improve prom_update_property() function 2012-07-11 15:26:51 +10:00
proc_net.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
proc_sysctl.c stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
proc_tty.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
root.c VFS: Pass mount flags to sget() 2012-07-14 16:38:34 +04:00
softirqs.c proc: use seq_puts()/seq_putc() where possible 2011-01-13 08:03:16 -08:00
stat.c proc: stats: Use arch_idle_time for idle and iowait times if available 2012-03-30 15:43:33 +02:00
task_mmu.c proc/smaps: show amount of nonlinear ptes in vma 2012-05-31 17:49:29 -07:00
task_nommu.c proc: remove mm_for_maps() 2012-05-31 17:49:28 -07:00
uptime.c Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip 2011-12-19 19:23:15 +01:00
version.c proc: switch /proc/version to seq_file 2008-10-23 14:19:58 +04:00
vmcore.c fadump: Introduce cleanup routine to invalidate /proc/vmcore. 2012-02-23 10:50:02 +11:00