From a6512959ac823ac89027ef373deff6f386920bb9 Mon Sep 17 00:00:00 2001
From: Peter Hillman <peterh@wetafx.co.nz>
Date: Thu, 25 Jul 2019 19:23:37 +1200
Subject: [PATCH] Fix for #494: validate tile coordinates when doing copyPixels

---
 OpenEXR/IlmImf/ImfTiledInputFile.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/OpenEXR/IlmImf/ImfTiledInputFile.cpp b/OpenEXR/IlmImf/ImfTiledInputFile.cpp
index 15c51c50af..bda7bad50a 100644
--- a/OpenEXR/IlmImf/ImfTiledInputFile.cpp
+++ b/OpenEXR/IlmImf/ImfTiledInputFile.cpp
@@ -1313,6 +1313,13 @@ TiledInputFile::rawTileData (int &dx, int &dy,
                 throw IEX_NAMESPACE::ArgExc ("rawTileData read the wrong tile");
             }
         }
+        else
+        {
+             if(!isValidTile (dx, dy, lx, ly) )
+             {
+                 throw IEX_NAMESPACE::IoExc ("rawTileData read an invalid tile");
+             }
+        }
         pixelData = tileBuffer->buffer;
     }
     catch (IEX_NAMESPACE::BaseExc &e)