diff options
| -rw-r--r-- | net/l2tp/l2tp_ppp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 8b3b6947a07d..1b24f76ae210 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -701,6 +701,15 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr, .encap = L2TP_ENCAPTYPE_UDP, .debug = 0, }; + + /* Prevent l2tp_tunnel_register() from trying to set up + * a kernel socket. + */ + if (fd < 0) { + error = -EBADF; + goto end; + } + error = l2tp_tunnel_create(sock_net(sk), fd, ver, tunnel_id, peer_tunnel_id, &tcfg, &tunnel); if (error < 0) goto end; |