diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 20ed7adcf1cc49d2609d4ea79aba2260fe0ec71f..75901c4641b1ced8308066c5b94ecbe13f268f09 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -2152,7 +2152,8 @@ static void br_multicast_start_querier(struct net_bridge *br,
 
 	__br_multicast_open(br, query);
 
-	list_for_each_entry(port, &br->port_list, list) {
+	rcu_read_lock();
+	list_for_each_entry_rcu(port, &br->port_list, list) {
 		if (port->state == BR_STATE_DISABLED ||
 		    port->state == BR_STATE_BLOCKING)
 			continue;
@@ -2164,6 +2165,7 @@ static void br_multicast_start_querier(struct net_bridge *br,
 			br_multicast_enable(&port->ip6_own_query);
 #endif
 	}
+	rcu_read_unlock();
 }
 
 int br_multicast_toggle(struct net_bridge *br, unsigned long val)