From 62b998cc06811340e81decc10307a864e924e9ba Mon Sep 17 00:00:00 2001
From: Victor Julien <vjulien@oisf.net>
Date: Fri, 28 Apr 2023 11:48:31 +0200
Subject: [PATCH] stream: clear SYN queue on state change

Bug: #5907.
---
 src/stream-tcp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/stream-tcp.c b/src/stream-tcp.c
index c1fa6c55f1..f544d19506 100644
--- a/src/stream-tcp.c
+++ b/src/stream-tcp.c
@@ -1928,11 +1928,13 @@ static int StreamTcpPacketStateSynSent(
                 SCLogDebug("ssn->server.flags |= STREAMTCP_STREAM_FLAG_RST_RECV");
                 ssn->server.flags |= STREAMTCP_STREAM_FLAG_RST_RECV;
                 StreamTcpCloseSsnWithReset(p, ssn);
+                StreamTcp3wsFreeQueue(ssn);
             }
         } else {
             ssn->client.flags |= STREAMTCP_STREAM_FLAG_RST_RECV;
             SCLogDebug("ssn->client.flags |= STREAMTCP_STREAM_FLAG_RST_RECV");
             StreamTcpCloseSsnWithReset(p, ssn);
+            StreamTcp3wsFreeQueue(ssn);
         }
 
         /* FIN */
@@ -2043,6 +2045,7 @@ static int StreamTcpPacketStateSynSent(
         ssn->flags |= STREAMTCP_FLAG_ASYNC;
         StreamTcpPacketSetState(p, ssn, TCP_ESTABLISHED);
         SCLogDebug("ssn %p: =~ ssn state is now TCP_ESTABLISHED", ssn);
+        StreamTcp3wsFreeQueue(ssn);
 
         ssn->client.window = TCP_GET_WINDOW(p);
         ssn->client.last_ack = TCP_GET_SEQ(p);