2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-06 04:14:13 +08:00

exit signals: use of uninitialized field notify_count

task->signal->notify_count is only initialized if
task->signal->group_exit_task is not NULL.  Reorder a conditional so
that uninitialised memory is not used.  Found by Valgrind.

Signed-off-by: Steve VanDeBogart <vandebo-lkml@nerdbox.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steve VanDeBogart 2008-08-26 15:14:36 -07:00 committed by Ingo Molnar
parent 7487017282
commit 2633f0e57b

View File

@ -918,8 +918,8 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
/* mt-exec, de_thread() is waiting for us */
if (thread_group_leader(tsk) &&
tsk->signal->notify_count < 0 &&
tsk->signal->group_exit_task)
tsk->signal->group_exit_task &&
tsk->signal->notify_count < 0)
wake_up_process(tsk->signal->group_exit_task);
write_unlock_irq(&tasklist_lock);