diff --git a/net/sctp/socket.c b/net/sctp/socket.c index c1401f43d40fc5c5a85dbcbcba424ad2e649ab56..d9d4c92e06b312e6c300afd8f3d5db33161fd9f7 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -7034,6 +7034,9 @@ 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))