From b422cc3377f371206b3450f381523ab1201e38b1 Mon Sep 17 00:00:00 2001
From: wujianlin <wujianlin8@h-partners.com>
Date: Mon, 18 Nov 2024 19:29:01 +0800
Subject: [PATCH] Fully verify fileLength

Issue:https://gitee.com/openharmony/commonlibrary_c_utils/issues/IB577P?from=project-issue
Signed-off-by: wujianlin <wujianlin8@h-partners.com>
---
 base/src/file_ex.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base/src/file_ex.cpp b/base/src/file_ex.cpp
index 7ad317c..8238e80 100644
--- a/base/src/file_ex.cpp
+++ b/base/src/file_ex.cpp
@@ -117,7 +117,7 @@ bool LoadStringFromFile(const string& filePath, string& content)
 
     file.seekg(0, ios::end);
     const long long fileLength = file.tellg();
-    if (fileLength > MAX_FILE_LENGTH) {
+    if (fileLength < 0 || fileLength > MAX_FILE_LENGTH) {
         UTILS_LOGD("invalid file length(%{public}lld)!", fileLength);
         return false;
     }
-- 
Gitee