Lilith River 26b18c5184 fix: prevent shift overflow panic in ColorMap size validation ...

`1usize << bits_per_sample` panics when bits_per_sample >= 64.
Use checked_shl to return a LimitsExceeded error instead.

Found by fuzzing decode_comprehensive with a BE TIFF containing
PhotometricInterpretation=RGBPalette and BitsPerSample=83.

2026-04-09 04:46:05 -06:00

..

colormap-shl-overflow.tiff

fix: prevent shift overflow panic in ColorMap size validation

2026-04-09 04:46:05 -06:00

id=000017,sig=06,src=000001,op=havoc,rep=64

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id=000018,sig=06,src=000001,op=havoc,rep=2

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id=000019,sig=06,src=000001,op=havoc,rep=8

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id=000023,sig=06,src=000006,op=havoc,rep=8

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id=000024,sig=06,src=000006,op=havoc,rep=2

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id=000026,sig=06,src=000012,op=havoc,rep=2

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id=000044,sig=06,src=000224,op=havoc,rep=4

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id=000049,sig=06,src=000318,op=havoc,rep=8

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id=000050,sig=06,src=000322,op=havoc,rep=32

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id=000055,sig=06,src=000343,op=havoc,rep=2

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sample-format-empty-vec.bin

Fix decoder panic with malformed (empty) sample format tag

2025-10-27 15:56:37 +01:00

sample-get-lzw-stuck.tiff

Don't panic if LZW doesn't find an LZW end code

2025-10-31 06:17:35 +00:00