Open
Conversation
AdamKorcz
force-pushed
the
add-compression-fuzzer
branch
from
f1e1751 to
9dd0ba6
Compare
AdamKorcz
force-pushed
the
add-compression-fuzzer
branch
from
9dd0ba6 to
87ac5e2
Compare
Fuzzes the CPython zlib, bz2, and lzma C modules (Modules/zlibmodule.c, Modules/_bz2module.c, Modules/_lzmamodule.c). Dispatches per input across six targets: zlib.decompressobj() with a fuzzed wbits (covering raw, zlib, gzip, and auto headers via -15/0/15/31/47) and an optional zdict, plus optional flush() and copy() to exercise the internal state-copy path; zlib.compress() / compressobj() at fuzzed levels 0–9 with optional copy/flush; zlib.crc32() / adler32(); bz2.compress() and BZ2Decompressor with a per-call output cap; LZMADecompressor across FORMAT_AUTO/XZ/ALONE/RAW (with LZMA2 filter and memlimit tuning); and lzma.compress(). All decompressions use a 1 MiB output cap to keep decompression-bomb inputs bounded.
AdamKorcz
force-pushed
the
add-compression-fuzzer
branch
from
87ac5e2 to
ae7345c
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fuzzes the CPython zlib, bz2, and lzma C modules (
Modules/zlibmodule.c,Modules/_bz2module.c,Modules/_lzmamodule.c). Dispatches per input across six targets:zlib.decompressobj()with a fuzzed wbits (covering raw, zlib, gzip, and auto headers via -15/0/15/31/47) and an optional zdict, plus optionalflush()andcopy()to exercise the internal state-copy path;zlib.compress()/compressobj()at fuzzed levels 0–9 with optionalcopy/flush;zlib.crc32()/adler32();bz2.compress()andBZ2Decompressorwith a per-call output cap;LZMADecompressoracrossFORMAT_AUTO/XZ/ALONE/RAW(with LZMA2 filter and memlimit tuning); andlzma.compress(). All decompressions use a 1 MiB output cap to keep decompression-bomb inputs bounded.