From f6137311836747b029e200fa80072c56af2d8c5e Mon Sep 17 00:00:00 2001
From: Yurii <laxilef@gmail.com>
Date: Mon, 19 Oct 2026 04:10:21 +0300
Subject: [PATCH] fix: prevent hangs when processing long sensor names

---
 src/Sensors.h | 2 +-
 src/utils.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Sensors.h b/src/Sensors.h
index a77d7bd..fd40a1f 100644
--- a/src/Sensors.h
+++ b/src/Sensors.h
@@ -409,7 +409,7 @@ public:
 
   static String& cleanName(String& value, char space = ' ') {
     // only valid symbols
-    for (uint8_t pos = 0; pos < value.length(); pos++) {
+    for (size_t pos = 0; pos < value.length(); pos++) {
       char symbol = value.charAt(pos);
 
       // 0..9
diff --git a/src/utils.h b/src/utils.h
index 4816606..9553bd8 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1885,7 +1885,7 @@ bool jsonToSensorSettings(const uint8_t sensorId, const JsonVariantConst src, Se
   }
 
   // name
-  if (!src[FPSTR(S_NAME)].isNull()) {
+  if (src[FPSTR(S_NAME)].is<JsonString>() && src[FPSTR(S_NAME)].as<JsonString>().size() < sizeof(dst.name)) {
     auto value = src[FPSTR(S_NAME)].as<String>();
     Sensors::cleanName(value);