@@ -200,6 +200,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
switch (cmsg->cmsg_type) {
case IP_RETOPTS:
err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
+
+ /* Our caller is responsible for freeing ipc->opt */
err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg),
err < 40 ? err : 40);
if (err)
@@ -743,8 +743,10 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
return err;
+ }
if (ipc.opt)
free = 1;
}
@@ -525,8 +525,10 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
goto out;
+ }
if (ipc.opt)
free = 1;
}
@@ -933,8 +933,10 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
return err;
+ }
if (ipc.opt)
free = 1;
connected = 0;