diff --git a/[refs] b/[refs]
index 48e857a3564d..54cdd0a33503 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 232a347a444e687b5f8cf0f6485704db1c6024d3
+refs/heads/master: e0e8eb54d8ae0c4cfd1d297f6351b08a7f635c5f
diff --git a/trunk/kernel/fork.c b/trunk/kernel/fork.c
index ccdfbb16c86d..46060cb24af0 100644
--- a/trunk/kernel/fork.c
+++ b/trunk/kernel/fork.c
@@ -1569,7 +1569,7 @@ asmlinkage long sys_unshare(unsigned long unshare_flags)
 
 		if (new_sigh) {
 			sigh = current->sighand;
-			current->sighand = new_sigh;
+			rcu_assign_pointer(current->sighand, new_sigh);
 			new_sigh = sigh;
 		}