From f928337f89bdd81a6d9d45434bea31ee14ad9235 Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Fri, 19 Jan 2024 09:14:38 +0100
Subject: [PATCH] dnsdist: Fix XSK over IPv6

---
 pdns/xsk.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdns/xsk.cc b/pdns/xsk.cc
index 66da682400..3c4f8d3b7b 100644
--- a/pdns/xsk.cc
+++ b/pdns/xsk.cc
@@ -902,7 +902,7 @@ void XskPacket::rewrite() noexcept
     ipHeader.nexthdr = IPPROTO_UDP;
     udpHeader.source = from.sin6.sin6_port;
     udpHeader.dest = to.sin6.sin6_port;
-    udpHeader.len = htons(getDataSize());
+    udpHeader.len = htons(getDataSize() + sizeof(udpHeader));
     udpHeader.check = 0;
     /* needed to get the correct checksum */
     setIPv6Header(ipHeader);
-- 
2.47.2