From d79c11d280ca70f9c32cfa5f80403b66949725f6 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Mon, 11 Feb 2019 22:57:33 +0100
Subject: [PATCH] ras: tweak max file check

better to do - 32 than + 32 otherwise we may overflow

oss-fuzz/13017
---
 src/imageformats/ras.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/imageformats/ras.cpp b/src/imageformats/ras.cpp
index 0e530b5..f1279e1 100644
--- a/src/imageformats/ras.cpp
+++ b/src/imageformats/ras.cpp
@@ -122,7 +122,7 @@ static bool LoadRAS(QDataStream &s, const RasHeader &ras, QImage &img)
         return false;
     }
     // QVector uses some extra space for stuff, hence the 32 here suggested by thiago
-    if (ras.Length + 32 > std::numeric_limits<int>::max()) {
+    if (ras.Length > std::numeric_limits<int>::max() - 32) {
         qWarning() << "LoadRAS() unsupported image length in file header" << ras.Length;
         return false;
     }