author: Xiyu Yang <xiyuyang19@fudan.edu.cn> 2021-09-09 12:32:00 +0800
committer: David S. Miller <davem@davemloft.net> 2021-09-09 11:00:20 +0100
commit: 9b6ff7eb666415e1558f1ba8a742f5db6a9954de
parent: 04f08eb44b5011493d77b602fdec29ff0f5c6cd5
Commit Summary:
Diffstat:
1 file changed, 3 insertions, 1 deletion
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 53486b162f01..93271a2632b8 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -869,8 +869,10 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb)
}
if (tunnel->version == L2TP_HDR_VER_3 &&
- l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
+ l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr)) {
+ l2tp_session_dec_refcount(session);
goto invalid;
+ }
l2tp_recv_common(session, skb, ptr, optr, hdrflags, length);
l2tp_session_dec_refcount(session);