From 9566324f6870be3d16028cadc7a82821b2114e75 Mon Sep 17 00:00:00 2001
From: Thomas Markwalder <tmark@isc.org>
Date: Tue, 22 Jul 2025 09:59:27 -0400
Subject: [PATCH] [#3770] Fix option client-classes buffer size

modified:   src/hooks/dhcp/mysql/mysql_host_data_source.cc
---
 src/hooks/dhcp/mysql/mysql_host_data_source.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hooks/dhcp/mysql/mysql_host_data_source.cc b/src/hooks/dhcp/mysql/mysql_host_data_source.cc
index 6644671d73..93684d53e7 100644
--- a/src/hooks/dhcp/mysql/mysql_host_data_source.cc
+++ b/src/hooks/dhcp/mysql/mysql_host_data_source.cc
@@ -24,6 +24,7 @@
 #include <util/buffer.h>
 #include <util/multi_threading_mgr.h>
 #include <util/optional.h>
+#include <config_backend/constants.h>
 
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/classification.hpp>
@@ -1234,7 +1235,7 @@ private:
         unsigned long user_context_length_;
 
         /// @brief Buffer holding textual client classes of an option.
-        char client_classes_[CLIENT_CLASSES_MAX_LEN];
+        char client_classes_[cb::CLIENT_CLASS_LIST_BUF_LENGTH];
 
         /// @brief User context length.
         unsigned long client_classes_length_;
-- 
2.47.3