From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 17 Nov 2025 11:16:20 +0000 (+0100)
Subject: dnsdist: Fix a bug when rewriting an IPv6 XSK packet
X-Git-Tag: rec-5.4.0-alpha1~22^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98178e50f479a47895917b432c2a96da3219a889;p=thirdparty%2Fpdns.git

dnsdist: Fix a bug when rewriting an IPv6 XSK packet

The header was not properly set.

Signed-off-by: Remi Gacogne <remi.gacogne@powerdns.com>
---

diff --git a/pdns/dnsdistdist/xsk.cc b/pdns/dnsdistdist/xsk.cc
index 6689335a28..9a50cdb160 100644
--- a/pdns/dnsdistdist/xsk.cc
+++ b/pdns/dnsdistdist/xsk.cc
@@ -973,6 +973,7 @@ void XskPacket::rewrite() noexcept
     // do not bother setting the UDP checksum: 0 is a valid value and most AF_XDP
     // implementations do the same
     // udpHeader.check = tcp_udp_v6_checksum(&ipHeader);
+    rewriteIpv6Header(&ipHeader, getFrameLen());
     setIPv6Header(ipHeader);
     setUDPHeader(udpHeader);
   }