1 files changed, 7 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 9d973ce29..359a4430d 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -953,6 +953,13 @@ static int de_thread(struct task_struct *tsk)
 		transfer_pid(leader, tsk, PIDTYPE_SID);
 
 		list_replace_rcu(&leader->tasks, &tsk->tasks);
+		/*
+		 * need to delete leader from adj tree, because it will not be
+		 * group leader (exit_signal = -1) soon. release_task(leader)
+		 * can't delete it.
+		 */
+		delete_from_adj_tree(leader);
+		add_2_adj_tree(tsk);
 		list_replace_init(&leader->sibling, &tsk->sibling);
 
 		tsk->group_leader = tsk;