1 files changed, 2 insertions, 0 deletions

diff --git a/fs/exec.c b/fs/exec.c
index 623a5cc3076a..77db9a97a773 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -826,7 +826,9 @@ static int de_thread(struct task_struct *tsk)
                 attach_pid(tsk, PIDTYPE_PID,  task_pid(leader));
                 transfer_pid(leader, tsk, PIDTYPE_PGID);
                 transfer_pid(leader, tsk, PIDTYPE_SID);
+
                 list_replace_rcu(&leader->tasks, &tsk->tasks);
+                list_replace_init(&leader->sibling, &tsk->sibling);
 
                 tsk->group_leader = tsk;
                 leader->group_leader = tsk;