From 467be80b75642efbbe6bdace558079f68c16acb1 Mon Sep 17 00:00:00 2001
From: peterhillman <[email protected]>
Date: Tue, 10 Nov 2020 08:35:59 +1300
Subject: [PATCH] Fix overflow computing deeptile sample table size (#861)

Signed-off-by: Peter Hillman <[email protected]>
---
 IlmImf/ImfDeepTiledInputFile.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/IlmImf/ImfDeepTiledInputFile.cpp b/IlmImf/ImfDeepTiledInputFile.cpp
index 0f893481b..f5abe9c6a 100644
--- a/IlmImf/ImfDeepTiledInputFile.cpp
+++ b/IlmImf/ImfDeepTiledInputFile.cpp
@@ -1034,8 +1034,8 @@ DeepTiledInputFile::initialize ()
     for (size_t i = 0; i < _data->tileBuffers.size(); i++)
         _data->tileBuffers[i] = new TileBuffer ();
 
-    _data->maxSampleCountTableSize = _data->tileDesc.ySize *
-                                     _data->tileDesc.xSize *
+    _data->maxSampleCountTableSize = static_cast<size_t>(_data->tileDesc.ySize) *
+                                     static_cast<size_t>(_data->tileDesc.xSize) *
                                      sizeof(int);
 
     _data->sampleCountTableBuffer.resizeErase(_data->maxSampleCountTableSize);