28 lines
1.1 KiB
Diff
28 lines
1.1 KiB
Diff
From 27d3ddedb73f63fa984ff5b4d66e07eef654070f Mon Sep 17 00:00:00 2001
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From: Cristy <urban-warrior@imagemagick.org>
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Date: Fri, 4 Oct 2019 19:08:29 -0400
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Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/1716
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---
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coders/png.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/coders/png.c b/coders/png.c
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index 410741059..ee6fba297 100644
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--- a/coders/png.c
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+++ b/coders/png.c
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@@ -11177,11 +11177,11 @@ static MagickBooleanType WriteOnePNGImage(MngInfo *mng_info,
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" Allocating %.20g bytes of memory for pixels",(double) rowbytes);
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}
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- pixel_info=AcquireVirtualMemory(rowbytes,sizeof(*ping_pixels));
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+ pixel_info=AcquireVirtualMemory(rowbytes+256,sizeof(*ping_pixels));
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if (pixel_info == (MemoryInfo *) NULL)
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png_error(ping,"Allocation of memory for pixels failed");
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ping_pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
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- (void) memset(ping_pixels,0,rowbytes*sizeof(*ping_pixels));
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+ (void) memset(ping_pixels,0,(rowbytes+256)*sizeof(*ping_pixels));
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/*
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Initialize image scanlines.
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*/
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