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Subject[patch 32/60] wait_task_stopped(): pass correct exit_code to wait_noreap_copyout()

2.6.23-stable review patch. If anyone has any objections, please let us

From: Scott James Remnant <>

patch e6ceb32aa25fc33f21af84cc7a32fe289b3e860c in mainline.

In wait_task_stopped() exit_code already contains the right value for the
si_status member of siginfo, and this is simply set in the non WNOWAIT

If you call waitid() with a stopped or traced process, you'll get the signal
in siginfo.si_status as expected -- however if you call waitid(WNOWAIT) at the
same time, you'll get the signal << 8 | 0x7f

Pass it unchanged to wait_noreap_copyout(); we would only need to shift it
and add 0x7f if we were returning it in the user status field and that
isn't used for any function that permits WNOWAIT.

Signed-off-by: Scott James Remnant <>
Signed-off-by: Oleg Nesterov <>
Cc: Roland McGrath <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
Signed-off-by: Greg Kroah-Hartman <>

kernel/exit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1365,7 +1365,7 @@ static int wait_task_stopped(struct task
if (unlikely(!exit_code) || unlikely(p->exit_state))
goto bail_ref;
return wait_noreap_copyout(p, pid, uid,
- why, (exit_code << 8) | 0x7f,
+ why, exit_code,
infop, ru);


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