[patch 08/11] - fix signal->live leak in copy_process()

[Greg KH]

From: Oleg Nesterov <oleg@xxxxxxxxxx>

exit_signal() (called from copy_process's error path) should decrement
->signal->live, otherwise forking process will miss 'group_dead' in
do_exit().

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 kernel/signal.c |    2 ++
 1 file changed, 2 insertions(+)

--- linux-2.6.14.1.orig/kernel/signal.c
+++ linux-2.6.14.1/kernel/signal.c
@@ -406,6 +406,8 @@ void __exit_signal(struct task_struct *t
 
 void exit_signal(struct task_struct *tsk)
 {
+	atomic_dec(&tsk->signal->live);
+
 	write_lock_irq(&tasklist_lock);
 	__exit_signal(tsk);
 	write_unlock_irq(&tasklist_lock);

--
-
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