From 5687d211c48b38facb9e77c59b233dc25dadb330 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Mon, 15 Jun 2026 17:04:44 +0200
Subject: [PATCH] servers: fix off-by-3 OOB write for large `loghex()` inputs

Spotted by GitHub Code Quality

Closes #22031
---
 tests/server/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/server/util.c b/tests/server/util.c
index 7a227bf0a3..77aec5aaaf 100644
--- a/tests/server/util.c
+++ b/tests/server/util.c
@@ -42,7 +42,7 @@ void loghex(const unsigned char *buffer, ssize_t len)
   ssize_t width = 0;
   int left = sizeof(data);
 
-  for(i = 0; i < len && (left >= 0); i++) {
+  for(i = 0; i < len && (left > 2); i++) {
     snprintf(optr, left, "%02x", ptr[i]);
     width += 2;
     optr += 2;