diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 6f71db8c4428c04a573020a2773b72a97c8e2ff7..662e6ea1cecfe550929ebc6e89aaec8f9d6b001f 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -112,6 +112,8 @@ static int setup_net(struct net *net)
 		if (ops->exit)
 			ops->exit(net);
 	}
+
+	rcu_barrier();
 	goto out;
 }