linux

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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

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

…

consoles.c

…

cpuinfo.c