diff options
Diffstat (limited to 'libtiff/tif_getimage.c')
| -rw-r--r-- | libtiff/tif_getimage.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c index 4da785d3..96ab1460 100644 --- a/libtiff/tif_getimage.c +++ b/libtiff/tif_getimage.c @@ -29,6 +29,7 @@ */ #include "tiffiop.h" #include <stdio.h> +#include <limits.h> static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); @@ -645,12 +646,20 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) flip = setorientation(img); if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(tw + w); + if ((tw + w) > INT_MAX) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "unsupported tile size (too wide)"); + return (0); + } + y = h - 1; + toskew = -(int32)(tw + w); } else { - y = 0; - toskew = -(int32)(tw - w); + if (tw > (INT_MAX + w)) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "unsupported tile size (too wide)"); + return (0); + } + y = 0; + toskew = -(int32)(tw - w); } /* |