diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 4178cf387d2..4358ae85cda 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -6181,6 +6181,9 @@ int sctp_inet_listen(struct socket *sock, int backlog) if (sock->state != SS_UNCONNECTED) goto out; + if (!sctp_sstate(sk, LISTENING) && !sctp_sstate(sk, CLOSED)) + goto out; + /* If backlog is zero, disable listening. */ if (!backlog) { if (sctp_sstate(sk, CLOSED))