From be374cc6cd51906eaacc7a4f77c9ac37ea7c69c7 Mon Sep 17 00:00:00 2001
From: qz_cx <wangqingzheng@kylinos.cn>
Date: Mon, 31 Oct 2022 14:29:31 +0800
Subject: [PATCH] Avoid potential integer overflow.

Merge pull request #2347 from kevinbackhouse/quicktimevideo-size-calc

Avoid potential integer overflow in QuickTimeVideo::userDataDecoder
@kevinbackhouse
kevinbackhouse committed on 7 Sep
---
 src/quicktimevideo.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/quicktimevideo.cpp b/src/quicktimevideo.cpp
index 335d884..9b80947 100644
--- a/src/quicktimevideo.cpp
+++ b/src/quicktimevideo.cpp
@@ -895,7 +895,7 @@ namespace Exiv2 {
 
             tv = find(userDataReferencetags, Exiv2::toString( buf.pData_));
 
-            if(size == 0 || (size - 12) <= 0)
+	    if (size <= 12)
                 break;
 
             else if(equalsQTimeTag(buf, "DcMD")  || equalsQTimeTag(buf, "NCDT"))
-- 
2.33.0