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--- gd_png.c.orig Sat Feb 3 02:41:00 2007
+++ gd_png.c Tue Feb 13 15:31:57 2007
@@ -189,6 +189,16 @@
png_read_info (png_ptr, info_ptr); /* read all PNG info up to image data */
png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, NULL, NULL);
+
+ if (overflow2(sizeof (int), width))
+ {
+ return NULL;
+ }
+ if (overflow2(sizeof (int) * width, height))
+ {
+ return NULL;
+ }
+
if ((color_type == PNG_COLOR_TYPE_RGB) || (color_type == PNG_COLOR_TYPE_RGB_ALPHA)) {
im = gdImageCreateTrueColor ((int) width, (int) height);
} else {
|
