From 1bc5cc4860c24dd97bd3bd796ce57a5e84a2dc41 Mon Sep 17 00:00:00 2001
From: Ben Meadors <benmmeadors@gmail.com>
Date: Thu, 24 Jul 2025 06:13:00 -0500
Subject: [PATCH] Update src/mqtt/MQTT.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 src/mqtt/MQTT.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mqtt/MQTT.cpp b/src/mqtt/MQTT.cpp
index 55a003f1b..86497bf5f 100644
--- a/src/mqtt/MQTT.cpp
+++ b/src/mqtt/MQTT.cpp
@@ -644,7 +644,8 @@ bool MQTT::isValidConfig(const meshtastic_ModuleConfig_MQTTConfig &config, MQTTC
         meshtastic_ClientNotification *cn = clientNotificationPool.allocZeroed();
         cn->level = meshtastic_LogRecord_Level_ERROR;
         cn->time = getValidTime(RTCQualityFromNet);
-        strcpy(cn->message, warning);
+        strncpy(cn->message, warning, sizeof(cn->message) - 1);
+        cn->message[sizeof(cn->message) - 1] = '\0'; // Ensure null termination
         service->sendClientNotification(cn);
         return false;
     }