From f6b5e5ba09cebc611176182fdcef4c5a1b426877 Mon Sep 17 00:00:00 2001
From: qqq123 <100619315+QWeiheng@users.noreply.github.com>
Date: Tue, 2 Apr 2024 16:07:08 -0500
Subject: [PATCH] add bound check in AP4_Stz2Atom::AP4_Stz2Atom

---
 Source/C++/Core/Ap4Stz2Atom.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Source/C++/Core/Ap4Stz2Atom.cpp b/Source/C++/Core/Ap4Stz2Atom.cpp
index f7acb845..6fa81297 100644
--- a/Source/C++/Core/Ap4Stz2Atom.cpp
+++ b/Source/C++/Core/Ap4Stz2Atom.cpp
@@ -104,6 +104,7 @@ AP4_Stz2Atom::AP4_Stz2Atom(AP4_UI32        size,
         delete[] buffer;
         return;
     }
+    if (sample_count > sizeof(buffer)) return;
     m_SampleCount = sample_count;
     m_Entries.SetItemCount((AP4_Cardinal)sample_count);
     switch (m_FieldSize) {