diff options
Diffstat (limited to 'net/ipv4/fou_core.c')
| -rw-r--r-- | net/ipv4/fou_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/fou_core.c b/net/ipv4/fou_core.c index 3970b6b7ace5..ab8f309f8925 100644 --- a/net/ipv4/fou_core.c +++ b/net/ipv4/fou_core.c @@ -215,6 +215,9 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb) return gue_control_message(skb, guehdr); proto_ctype = guehdr->proto_ctype; + if (unlikely(!proto_ctype)) + goto drop; + __skb_pull(skb, sizeof(struct udphdr) + hdrlen); skb_reset_transport_header(skb); |