You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
1.8 KiB
58 lines
1.8 KiB
commit 6d3ef98b2415b2edfa36a5ba600d5a824c094309
|
|
Author: erouault <erouault>
|
|
Date: Sat Dec 3 14:42:40 2016 +0000
|
|
|
|
* tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
|
|
missing.
|
|
Reported by Agostino Sarubbo.
|
|
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2597
|
|
|
|
diff --git a/ChangeLog b/ChangeLog
|
|
index e41d00c..0d7b12d 100644
|
|
--- a/ChangeLog
|
|
+++ b/ChangeLog
|
|
@@ -1,5 +1,12 @@
|
|
2016-12-03 Even Rouault <even.rouault at spatialys.com>
|
|
|
|
+ * tools/tiffcp.c: avoid potential division by zero if BitsPerSamples tag is
|
|
+ missing.
|
|
+ Reported by Agostino Sarubbo.
|
|
+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2597
|
|
+
|
|
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
|
|
+
|
|
* tools/tiffinfo.c: fix null pointer dereference in -r mode when the image has
|
|
no StripByteCount tag.
|
|
Reported by Agostino Sarubbo.
|
|
diff --git a/tools/tiffcp.c b/tools/tiffcp.c
|
|
index 6dfb9a9..c8e48c3 100644
|
|
--- a/tools/tiffcp.c
|
|
+++ b/tools/tiffcp.c
|
|
@@ -1,4 +1,4 @@
|
|
-/* $Id: tiffcp.c,v 1.56 2016-12-02 22:13:32 erouault Exp $ */
|
|
+/* $Id: tiffcp.c,v 1.57 2016-12-03 14:42:40 erouault Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988-1997 Sam Leffler
|
|
@@ -1378,7 +1378,7 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
|
|
uint8* bufp = (uint8*) buf;
|
|
uint32 tw, tl;
|
|
uint32 row;
|
|
- uint16 bps, bytes_per_sample;
|
|
+ uint16 bps = 0, bytes_per_sample;
|
|
|
|
tilebuf = _TIFFmalloc(tilesize);
|
|
if (tilebuf == 0)
|
|
@@ -1387,6 +1387,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
|
|
(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);
|
|
(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
|
|
(void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
|
|
+ if( bps == 0 )
|
|
+ {
|
|
+ TIFFError(TIFFFileName(in), "Error, cannot read BitsPerSample");
|
|
+ status = 0;
|
|
+ goto done;
|
|
+ }
|
|
assert( bps % 8 == 0 );
|
|
bytes_per_sample = bps/8;
|
|
|