Oleg Nesterov 114279be21 exec: copy-and-paste the fixes into compat_do_execve() paths
Note: this patch targets 2.6.37 and tries to be as simple as possible.
That is why it adds more copy-and-paste horror into fs/compat.c and
uglifies fs/exec.c, this will be cleanuped later.

compat_copy_strings() plays with bprm->vma/mm directly and thus has
two problems: it lacks the RLIMIT_STACK check and argv/envp memory
is not visible to oom killer.

Export acct_arg_size() and get_arg_page(), change compat_copy_strings()
to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0)
as do_execve() does.

Add the fatal_signal_pending/cond_resched checks into compat_count() and
compat_copy_strings(), this matches the code in fs/exec.c and certainly
makes sense.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-30 17:56:38 -08:00
..
2010-10-29 04:16:38 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:17:13 -04:00
2010-10-29 04:16:31 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:31 -04:00
2010-10-29 04:16:28 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:28 -04:00
2010-10-29 04:16:28 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:31 -04:00
2010-10-25 21:26:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:31 -04:00
2010-10-29 04:16:31 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-11-01 16:34:56 -04:00
2010-10-29 04:16:13 -04:00
2010-11-30 10:18:49 -08:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-11-08 14:29:39 -08:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:31 -04:00
2010-10-29 04:17:08 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:36 -04:00
2010-10-29 04:16:13 -04:00
2010-10-29 04:16:13 -04:00
2010-10-25 21:26:11 -04:00
2010-10-29 04:16:33 -04:00
2010-10-29 04:16:28 -04:00
2010-10-15 15:53:27 +02:00
2010-08-18 08:35:46 -04:00
2010-10-29 05:49:13 -04:00
2010-10-28 09:44:56 -07:00
2010-10-29 04:16:33 -04:00
2010-10-28 09:44:56 -07:00
2010-10-29 04:14:56 -04:00
2010-10-29 04:14:56 -04:00
2010-08-18 08:35:48 -04:00
2010-08-09 16:48:44 -04:00
2010-10-29 04:17:03 -04:00
2010-08-09 16:47:43 -04:00