1 files changed, 9 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 807400f..f0d744a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -963,6 +963,15 @@ static int de_thread(struct task_struct *tsk)
 		leader->group_leader = tsk;
 
 		tsk->exit_signal = SIGCHLD;
+		/*
+		 * 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.
+		 */
+		spin_lock_irq(lock);
+		delete_from_adj_tree(leader);
+		add_2_adj_tree(tsk);
+		spin_unlock_irq(lock);
 
 		BUG_ON(leader->exit_state != EXIT_ZOMBIE);
 		leader->exit_state = EXIT_DEAD;