Блендер (Blender)

bug-makers

Task: a palette PNG that file(1) reports as valid but Pillow refuses to open with 'broken data stream'. Solution: identify that the IDAT chunks were shuffled, brute-force the permutation by anchoring the chunk that starts with the zlib header (78 da), validate via exact decompressed length, manually de-filter scanlines, and decode the recovered QR code.