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Grzegorz MartensandClaude Opus 5.5
ecf0289652
A review of fee25bfe4 found three costs the budget didn't count:
- A /JBIG2Globals reference in parameters given directly was fetched
again for every entry of every stream (2,000 entries, 53 KB: 40 s, two
thousand units of four million). What a reference leads to is now
remembered for the run under it, and a chain met part way takes what
is known from there.
- A /Filter name was kept whatever it was, so a 32 MiB name referred to
nine times was held nine times and copied for each image (725 MiB from
2.8 KB). Only a name a decoder knows is kept; any other is no filter,
and a name longer than any decoder's isn't looked at.
- A decode that failed spent nothing, so a dictionary one byte past its
limit escaped the budget. A failure now costs as much as it was allowed
to decode: a dictionary MAX_JBIG2_GLOBALS, an image its allowance.
The README says what the budget counts, and that past it the redaction
is refused.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AmsdeUCdTaD72jkDw2pJKY