diff options
| -rw-r--r-- | fs/exec.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/exec.c b/fs/exec.c index a5fef835ebc5..02bfd980a40c 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -926,10 +926,14 @@ static int de_thread(struct task_struct *tsk) if (!thread_group_leader(tsk)) { struct task_struct *leader = tsk->group_leader; - sig->notify_count = -1; /* for exit_notify() */ for (;;) { threadgroup_change_begin(tsk); write_lock_irq(&tasklist_lock); + /* + * Do this under tasklist_lock to ensure that + * exit_notify() can't miss ->group_exit_task + */ + sig->notify_count = -1; if (likely(leader->exit_state)) break; __set_current_state(TASK_KILLABLE); |