diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index bb8cfc62cb00..0fa3cdbdcc21 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -617,14 +617,23 @@ void udp_lib_hash4(struct sock *sk, u16 hash)
 	struct net *net = sock_net(sk);
 	struct udp_table *udptable;
 
-	/* Connected udp socket can re-connect to another remote address, which
-	 * will be handled by rehash. Thus no need to redo hash4 here.
-	 */
-	if (udp_hashed4(sk))
-		return;
-
 	udptable = net->ipv4.udp_table;
 	hslot = udp_hashslot(udptable, net, udp_sk(sk)->udp_port_hash);
+
+	/* A connected socket can re-connect to another address. rehash()
+	 * relocates it, but only runs when the local address changes, so a
+	 * socket bound to a specific address would stay filed under the
+	 * previous peer's hash. Move it here.
+	 */
+	if (udp_hashed4(sk)) {
+		if (udp_sk(sk)->udp_lrpa_hash != hash) {
+			spin_lock_bh(&hslot->lock);
+			udp_rehash4(udptable, sk, hash);
+			spin_unlock_bh(&hslot->lock);
+		}
+		return;
+	}
+
 	hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash);
 	hslot4 = udp_hashslot4(udptable, hash);
 	udp_sk(sk)->udp_lrpa_hash = hash;