Open
Conversation
AdamKorcz
force-pushed
the
add-array-fuzzer
branch
from
cb3c172 to
5c0fec7
Compare
AdamKorcz
force-pushed
the
add-array-fuzzer
branch
from
5c0fec7 to
c8da7b9
Compare
Fuzzes the CPython array C module (Modules/arraymodule.c). Picks one of the 12 typecodes (b/B/h/H/i/I/l/L/q/Q/f/d) and seeds an array via frombytes() from a fuzzed byte buffer sized as a multiple of the typecode's itemsize, then dispatches per input across three targets: a frombytes/tobytes/tolist roundtrip; a sequence of up to 20 element operations (reverse, byteswap, pop, count, index, insert, remove, tobytes) driven with random-typed values to reach type-error and ValueError paths in the C code; and slice read/write that assigns a freshly-built array back into a fuzzed [start:end] range to exercise the buffer resize logic.
AdamKorcz
force-pushed
the
add-array-fuzzer
branch
from
c8da7b9 to
058970e
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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 array C module (
Modules/arraymodule.c). Picks one of the 12 typecodes (b/B/h/H/i/I/l/L/q/Q/f/d) and seeds an array via frombytes() from a fuzzed byte buffer sized as a multiple of the typecode's itemsize, then dispatches per input across three targets: afrombytes/tobytes/tolistroundtrip; a sequence of up to 20 element operations (reverse,byteswap,pop,count,index,insert,remove,tobytes) driven with random-typed values to reach type-error andValueErrorpaths in the C code; and slice read/write that assigns a freshly-built array back into a fuzzed [start:end] range to exercise the buffer resize logic.