Don't try to signal already-zombied threads in zap_threads.

1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/signal.c b/kernel/signal.c
index 208e924cc9f4..24a339d75cb9 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1001,6 +1001,12 @@ void zap_other_threads(struct task_struct *p)
 
 	for (t = next_thread(p); t != p; t = next_thread(t)) {
 		/*
+		 * Don't bother with already dead threads
+		 */
+		if (t->state == TASK_ZOMBIE)
+			continue;
+
+		/*
 		 * We don't want to notify the parent, since we are
 		 * killed as part of a thread group due to another
 		 * thread doing an execve() or similar. So set the