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| author | Oleg Nesterov <oleg@redhat.com> | 2009-04-02 16:58:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-02 19:05:02 -0700 |
| commit | 2ae448efc87df6d328f5835969076c7f9fce59c3 (patch) | |
| tree | f110b43fa7c6b3c80f9b18a8e4fef728ed57f448 /mm/msync.c | |
| parent | 6dda81f4384b94930826eded254d8c16f89a9248 (diff) | |
| download | op-kernel-dev-2ae448efc87df6d328f5835969076c7f9fce59c3.zip op-kernel-dev-2ae448efc87df6d328f5835969076c7f9fce59c3.tar.gz | |
pids: improve get_task_pid() to fix the unsafe sys_wait4()->task_pgrp()
sys_wait4() does get_pid(task_pgrp(current)), this is not safe. We can
add rcu lock/unlock around, but we already have get_task_pid() which can
be improved to handle the special pids in more reliable manner.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Louis Rilling <Louis.Rilling@kerlabs.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/msync.c')
0 files changed, 0 insertions, 0 deletions
