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Process crashing when loading this PNG image #23

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Agamnentzar opened this issue Jun 29, 2020 · 2 comments
Open

Process crashing when loading this PNG image #23

Agamnentzar opened this issue Jun 29, 2020 · 2 comments

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@Agamnentzar
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Agamnentzar commented Jun 29, 2020 •
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Crashes when loading this PNG using readPngFile, probably need to update libpng to latest version.

Platform: Windows 10

Exception code=0xc0000005 flags=0x0 at 0x00007FFB873E5420. Access violation - attempting to read data at address 0x0000025A63466000

image:
fail
@Prior99
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Prior99 commented Jul 23, 2020

Hi, I upgraded libpng to 1.6.37, but this still fails. I added a simple regression test with your image on this branch. But the upgrade did not fix this issue. What version of libpng was used to encode this image?

@Agamnentzar
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I got this image set to my website by random user, they must have used some broken encoding program. I did have someone try latest libpng and it indeed failed to decode this image. I think the latest libpng at least doesn't crash on it though. Not sure what is used by browsers to decode it successfully.

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@Agamnentzar @Prior99