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17 lines
646 B
C
17 lines
646 B
C
--- src/gd_png.c.orig 2016-10-12 08:13:44 UTC
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+++ src/gd_png.c
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@@ -277,6 +277,14 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFro
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png_read_info (png_ptr, info_ptr); /* read all PNG info up to image data */
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png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, NULL, NULL);
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+
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+ if (overflow2(sizeof (int), width)) {
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+ return NULL;
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+ }
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+ if (overflow2(sizeof (int) * width, height)) {
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+ return NULL;
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+ }
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+
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if ((color_type == PNG_COLOR_TYPE_RGB) || (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
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|| color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
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im = gdImageCreateTrueColor ((int) width, (int) height);
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