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-rw-r--r--kernel/signal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 9ad8dea93dbb..5383b562df85 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1926,7 +1926,7 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
* This is only possible if parent == real_parent.
* Check if it has changed security domain.
*/
- if (tsk->parent_exec_id != tsk->parent->self_exec_id)
+ if (tsk->parent_exec_id != READ_ONCE(tsk->parent->self_exec_id))
sig = SIGCHLD;
}