1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index d7eb727eb535..adbea16ec649 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -841,6 +841,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
         atomic_set(&sig->live, 1);
         init_waitqueue_head(&sig->wait_chldexit);
         sig->flags = 0;
+        if (clone_flags & CLONE_NEWPID)
+                sig->flags |= SIGNAL_UNKILLABLE;
         sig->group_exit_code = 0;
         sig->group_exit_task = NULL;
         sig->group_stop_count = 0;