From 86861b86f26be5301ccfa96f9bf765051f4e644a Mon Sep 17 00:00:00 2001

From: pgajdos <pgajdos@suse.cz>

Date: Tue, 13 Nov 2018 09:03:31 +0100

Subject: [PATCH] prevent integer overflow

---

 tools/tiffcp.c | 6 ++++++

 1 file changed, 6 insertions(+)

diff --git a/tools/tiffcp.c b/tools/tiffcp.c

index 2f406e2d..ece7ba13 100644

--- a/tools/tiffcp.c

+++ b/tools/tiffcp.c

@@ -1435,6 +1435,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)

             status = 0;

             goto done;

         }

+        if (0xFFFFFFFF / tilew < spp)

+        {

+            TIFFError(TIFFFileName(in), "Error, either TileWidth (%u) or BitsPerSample (%u) is too large", tilew, bps);

+            status = 0;

+            goto done;

+        }

 	bytes_per_sample = bps/8;

 	for (row = 0; row < imagelength; row += tl) {

-- 

2.18.1