diff --git a/net/core/dev.c b/net/core/dev.c
index 0d78e04..b31d5d6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1435,6 +1435,7 @@
 
 int call_netdevice_notifiers(unsigned long val, struct net_device *dev)
 {
+	ASSERT_RTNL();
 	return raw_notifier_call_chain(&netdev_chain, val, dev);
 }