From feb6fbad71a4a8bb5f3cc5e313de0e3ceb473759 Mon Sep 17 00:00:00 2001
From: chenkeyu <chenkeyu13@huawei.com>
Date: Fri, 8 Nov 2024 15:20:31 +0800
Subject: [PATCH] add ValidateReadData to ReadCString

Issue: https://gitee.com/openharmony/commonlibrary_c_utils/issues/IB2ZML?from=project-issue
Signed-off-by: chenkeyu <chenkeyu13@huawei.com>
---
 base/src/parcel.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/base/src/parcel.cpp b/base/src/parcel.cpp
index 64fcfc8..7fd2604 100644
--- a/base/src/parcel.cpp
+++ b/base/src/parcel.cpp
@@ -1098,6 +1098,9 @@ const char *Parcel::ReadCString()
     const char* eos = reinterpret_cast<const char*>(memchr(cstr, 0, avail));
     if (eos != nullptr) {
         const size_t dataLength = eos - cstr;
+        if (!ValidateReadData(dataLength + 1)) {
+            return nullptr;
+        }
         readCursor_ += (dataLength + 1);
         SkipBytes(GetPadSize(dataLength + 1));
         return cstr;
-- 
Gitee