if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc,
sk->sk_family == AF_INET6);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
return err;
+ }
if (ipc.opt)
free = 1;
connected = 0;
flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos,
RT_SCOPE_UNIVERSE, sk->sk_protocol,
flow_flags,
- faddr, saddr, dport, inet->inet_sport);
+ faddr, saddr, dport, inet->inet_sport,
+ sock_i_uid(sk));
- if (!saddr && ipc.oif)
- l3mdev_get_saddr(net, ipc.oif, fl4);
+ if (!saddr && ipc.oif) {
+ err = l3mdev_get_saddr(net, ipc.oif, fl4);
+ if (err < 0)
+ goto out;
+ }
security_sk_classify_flow(sk, flowi4_to_flowi(fl4));
rt = ip_route_output_flow(net, fl4, sk);
if (!in_dev)
return;
- ours = ip_check_mc_rcu(in_dev, iph->daddr, iph->saddr,
- iph->protocol);
- if (!ours)
- return;
+ /* we are supposed to accept bcast packets */
+ if (skb->pkt_type == PACKET_MULTICAST) {
+ ours = ip_check_mc_rcu(in_dev, iph->daddr, iph->saddr,
+ iph->protocol);
+ if (!ours)
+ return;
+ }
+
sk = __udp4_lib_mcast_demux_lookup(net, uh->dest, iph->daddr,
uh->source, iph->saddr, dif);
} else if (skb->pkt_type == PACKET_HOST) {