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-rw-r--r--net/dccp/proto.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index b4b10cbd888..46cb3490d48 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -278,6 +278,9 @@ static inline int dccp_listen_start(struct sock *sk, int backlog)
struct dccp_sock *dp = dccp_sk(sk);
dp->dccps_role = DCCP_ROLE_LISTEN;
+ /* do not start to listen if feature negotiation setup fails */
+ if (dccp_feat_finalise_settings(dp))
+ return -EPROTO;
return inet_csk_listen_start(sk, backlog);
}