tree 4bce17647edd3fae6b0ba96407cd1c02037b11d1
parent 6e6d9fa6f95e382bb2d5725dda18b9e811418e79
author Oleg Nesterov <oleg@tv-sign.ru> 1162057129 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1162060254 -0700

[PATCH] fill_tgid: fix task_struct leak and possible oops

1. fill_tgid() forgets to do put_task_struct(first).

2. release_task(first) can happen after fill_tgid() drops tasklist_lock,
   it is unsafe to dereference first->signal.

This is a temporary fix, imho the locking should be reworked.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>