From 235ee362119b4351e2e0cc3be9bbb5cf90bd20d9 Mon Sep 17 00:00:00 2001
From: Victor Julien <vjulien@oisf.net>
Date: Thu, 4 May 2023 06:47:58 +0200
Subject: [PATCH] respond/reject: fix IPv6 TCP resets

Fix length and next header field settings.

Bug: #6038.
---
 src/respond-reject-libnet11.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/respond-reject-libnet11.c b/src/respond-reject-libnet11.c
index b9c55583b3..95ff114484 100644
--- a/src/respond-reject-libnet11.c
+++ b/src/respond-reject-libnet11.c
@@ -432,7 +432,7 @@ int RejectSendLibnet11IPv6TCP(ThreadVars *tv, Packet *p, void *data, enum Reject
     if (c == NULL)
         return 1;
 
-    lpacket.len = LIBNET_IPV6_H + LIBNET_TCP_H;
+    lpacket.len = LIBNET_TCP_H;
     lpacket.dsize = p->payload_len;
 
     switch (dir) {
@@ -453,7 +453,7 @@ int RejectSendLibnet11IPv6TCP(ThreadVars *tv, Packet *p, void *data, enum Reject
 
     BuildTCP(c, &lpacket);
 
-    if (BuildIPv6(c, &lpacket, IPPROTO_ICMP) < 0)
+    if (BuildIPv6(c, &lpacket, IPPROTO_TCP) < 0)
         goto cleanup;
 
     if (t_inject_mode == LIBNET_LINK) {