diff --git a/[refs] b/[refs]
index fb1dad847ced..fb8b95e720f7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4df46240a1312161e3c794f6ace50ef7eb5ff3d7
+refs/heads/master: 513627d7fec6fcb7b3d56ce355cb4d192c76b530
diff --git a/trunk/fs/exec.c b/trunk/fs/exec.c
index f7aabfeca033..54135df2a966 100644
--- a/trunk/fs/exec.c
+++ b/trunk/fs/exec.c
@@ -751,7 +751,7 @@ static int de_thread(struct task_struct *tsk)
 
 		write_lock_irq(&tasklist_lock);
 		spin_lock(&oldsighand->siglock);
-		spin_lock(&newsighand->siglock);
+		spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING);
 
 		rcu_assign_pointer(current->sighand, newsighand);
 		recalc_sigpending();