diff options
| -rw-r--r-- | net/l2tp/l2tp_ppp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 270a0a999eaf..8b3b6947a07d 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -734,6 +734,12 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr, session = l2tp_session_get(sock_net(sk), tunnel, session_id); if (session) { drop_refcnt = true; + + if (session->pwtype != L2TP_PWTYPE_PPP) { + error = -EPROTOTYPE; + goto end; + } + ps = l2tp_session_priv(session); /* Using a pre-existing session is fine as long as it hasn't |