libpng error: [00][B8][05][A9]: invalid chunk type

[kadogo]

Hello,

I use Debian Stretch and I find out a bug when I concat many pictures together.

libpng: 1.6.28-1
feh: 2.18-2

I have this message if I try to read the picture with feh. Feh don't show anything.

$ feh tnew.png 
libpng warning: IDAT: bad parameters to zlib
libpng error: [00][B8][05][A9]: invalid chunk type
libpng warning: IDAT: bad parameters to zlib
libpng error: [00][B8][05][A9]: invalid chunk type
libpng warning: IDAT: bad parameters to zlib
libpng error: [00][B8][05][A9]: invalid chunk type

The result of pngcheck are correct

$ pngcheck tnew.png 
OK: tnew.png (100x50000, 24-bit RGB, non-interlaced, 98.3%).

If I try to read the picture on firefox or on Gimp it work without any issues;

Thanks for your help, don't hésitate to ask more information if needed.

Cheers