From 20ffe2be9de9bb4509568f8c2e2e3a3c4e08e310 Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <bgalvani@redhat.com>
Date: Tue, 23 Dec 2025 21:54:03 +0100
Subject: [PATCH] bpf: clat: fix translation of ICMPv6 Parameter Problem
 message

---
 src/core/bpf/clat.bpf.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/core/bpf/clat.bpf.c b/src/core/bpf/clat.bpf.c
index 788c4fec7e..a5b35119bd 100644
--- a/src/core/bpf/clat.bpf.c
+++ b/src/core/bpf/clat.bpf.c
@@ -603,11 +603,8 @@ rewrite_icmpv6(struct __sk_buff *skb)
         case 0:
             icmp_buf.type = ICMP_PARAMETERPROB;
             icmp_buf.code = 0;
-            break;
-        case 1:
-            icmp_buf.type = ICMP_DEST_UNREACH;
-            icmp_buf.code = ICMP_PROT_UNREACH;
-            ptr           = bpf_ntohl(icmp6->icmp6_pointer);
+
+            ptr = bpf_ntohl(icmp6->icmp6_pointer);
             /* Figure 6 in RFC6145 - using if statements b/c of
              * range at the bottom
              */
@@ -626,6 +623,10 @@ rewrite_icmpv6(struct __sk_buff *skb)
             else
                 return -1;
             break;
+        case 1:
+            icmp_buf.type = ICMP_DEST_UNREACH;
+            icmp_buf.code = ICMP_PROT_UNREACH;
+            break;
         default:
             return -1;
         }