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29 lines
1.3 KiB
Diff
29 lines
1.3 KiB
Diff
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This patch comes from http://hg.code.sf.net/p/graphicsmagick/code/rev/cd699a44f188.
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diff -ur a/coders/png.c b/coders/png.c
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--- a/coders/png.c 2017-07-04 17:32:08.000000000 -0400
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+++ b/coders/png.c 2017-08-19 11:16:20.933969362 -0400
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@@ -4101,11 +4101,17 @@
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mng_info->image=image;
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}
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- if ((mng_info->mng_width > 65535L) || (mng_info->mng_height
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- > 65535L))
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- (void) ThrowException(&image->exception,ImageError,
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- WidthOrHeightExceedsLimit,
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- image->filename);
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+ if ((mng_info->mng_width > 65535L) ||
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+ (mng_info->mng_height > 65535L))
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+ {
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+ (void) LogMagickEvent(CoderEvent,GetMagickModule(),
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+ " MNG width or height is too large: %lu, %lu",
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+ mng_info->mng_width,mng_info->mng_height);
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+ MagickFreeMemory(chunk);
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+ ThrowReaderException(CorruptImageError,
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+ ImproperImageHeader,image);
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+ }
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+
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FormatString(page_geometry,"%lux%lu+0+0",mng_info->mng_width,
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mng_info->mng_height);
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mng_info->frame.left=0;
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