ipv4: fix memory leaks in ip_cmsg_send() callers

[karo-tx-linux.git] / net / ipv4 / udp.c

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index be0b21852b138ebc5eed9caf37740cbe1cb1abe0..95d2f198017ef1a6db687ddfe405a13830a37f3f 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1048,8 +1048,10 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
        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;