diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b134f6abf..2347c218d 100755
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -632,6 +632,8 @@ static void rt6_probe(struct fib6_nh *fib6_nh)
 	rcu_read_lock_bh();
 	last_probe = READ_ONCE(fib6_nh->last_probe);
 	idev = __in6_dev_get(dev);
+	if (!idev)
+		goto out;
 	neigh = __ipv6_neigh_lookup_noref(dev, nh_gw);
 	if (neigh) {
 		if (neigh->nud_state & NUD_VALID)