diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index e44e631..777716b 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -421,6 +421,19 @@
 	return validate_actions(actions, key, depth + 1);
 }
 
+static int validate_tp_port(const struct sw_flow_key *flow_key)
+{
+	if (flow_key->eth.type == htons(ETH_P_IP)) {
+		if (flow_key->ipv4.tp.src && flow_key->ipv4.tp.dst)
+			return 0;
+	} else if (flow_key->eth.type == htons(ETH_P_IPV6)) {
+		if (flow_key->ipv6.tp.src && flow_key->ipv6.tp.dst)
+			return 0;
+	}
+
+	return -EINVAL;
+}
+
 static int validate_set(const struct nlattr *a,
 			const struct sw_flow_key *flow_key)
 {
@@ -462,18 +475,13 @@
 		if (flow_key->ip.proto != IPPROTO_TCP)
 			return -EINVAL;
 
-		if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst)
-			return -EINVAL;
-
-		break;
+		return validate_tp_port(flow_key);
 
 	case OVS_KEY_ATTR_UDP:
 		if (flow_key->ip.proto != IPPROTO_UDP)
 			return -EINVAL;
 
-		if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst)
-			return -EINVAL;
-		break;
+		return validate_tp_port(flow_key);
 
 	default:
 		return -EINVAL;
@@ -1641,10 +1649,9 @@
 	reply = ovs_vport_cmd_build_info(vport, info->snd_pid, info->snd_seq,
 					 OVS_VPORT_CMD_NEW);
 	if (IS_ERR(reply)) {
-		err = PTR_ERR(reply);
 		netlink_set_err(init_net.genl_sock, 0,
-				ovs_dp_vport_multicast_group.id, err);
-		return 0;
+				ovs_dp_vport_multicast_group.id, PTR_ERR(reply));
+		goto exit_unlock;
 	}
 
 	genl_notify(reply, genl_info_net(info), info->snd_pid,
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 1252c30..2a11ec2 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -183,7 +183,8 @@
 	u8 tcp_flags = 0;
 
 	if (flow->key.eth.type == htons(ETH_P_IP) &&
-	    flow->key.ip.proto == IPPROTO_TCP) {
+	    flow->key.ip.proto == IPPROTO_TCP &&
+	    likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
 		u8 *tcp = (u8 *)tcp_hdr(skb);
 		tcp_flags = *(tcp + TCP_FLAGS_OFFSET) & TCP_FLAG_MASK;
 	}