diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 83628c347744..507b2ad5ef7c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1829,6 +1829,10 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
 		err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len);
 		if (err)
 			goto err;
+		if (unlikely(sinfo->sinfo_stream >= asoc->stream.outcnt)) {
+			err = -EINVAL;
+			goto err;
+		}
 	}
 
 	if (sctp_state(asoc, CLOSED)) {