diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 37674d76f90f..5f2197874beb 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1082,6 +1082,8 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 
 			for (nhsel = 0; nhsel < fib_info_num_path(res.fi); nhsel++) {
 				nhc = fib_info_nhc(res.fi, nhsel);
+				if (!nhc)
+					break;
 				update_or_create_fnhe(nhc, fl4->daddr, 0, mtu, lock,
 						      jiffies + net->ipv4.ip_rt_mtu_expires);
 			}