From 5644286de5257d38cdcf5a7803913ff39ff80cf9 Mon Sep 17 00:00:00 2001
From: Ng Kiat Siong <kiatsiong.ng@gmail.com>
Date: Thu, 28 Nov 2024 10:17:02 +0800
Subject: [PATCH] Fixed issue #4352 null deprecation in UnserializeArray.php

---
 app/code/core/Mage/Core/Helper/UnserializeArray.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/code/core/Mage/Core/Helper/UnserializeArray.php b/app/code/core/Mage/Core/Helper/UnserializeArray.php
index c5437673dcf..564189e8600 100644
--- a/app/code/core/Mage/Core/Helper/UnserializeArray.php
+++ b/app/code/core/Mage/Core/Helper/UnserializeArray.php
@@ -29,6 +29,9 @@ class Mage_Core_Helper_UnserializeArray
      */
     public function unserialize($str)
     {
+        if (!is_string($str) || $str === '') {
+            throw new Exception('Error unserializing data.');
+        }
         try {
             $result = unserialize($str, ['allowed_classes' => false]);
             if ($result === false && $str !== serialize(false)) {