Fix 33 reproduced fuzzing and static-review defects - #8514

Merged

youknowone merged 40 commits into

RustPython:mainfrom

youknowone:fuzzer-issues

Aug 13, 2026

Commits on Aug 13, 2026

mmap: guard move() against dest/src past the mapping size
youknowone
committed
6afa8ad
exceptions: keep ImportError name/path/name_from out of an empty instance dict
youknowone
committed
d0cc9b2
asyncio: stop unwrapping the _current_tasks downcast in current_task()
youknowone
committed
3cdca38
asyncio: raise TypeError when FutureIter.throw()'s exception class returns a non-exception
youknowone
committed
8525e5a
sequence: use a fallible reservation for sequence repetition
youknowone
committed
4f09fc9
collections: reject an oversized deque repetition with MemoryError
youknowone
committed
4555824
itertools: raise OverflowError for an out-of-range r argument
youknowone
committed
5fc6713
math: stream the generic sumprod path instead of collecting both iterables
youknowone
committed
7ca0170
_imp: raise TypeError for a second positional argument to find_frozen
youknowone
committed
e10a9dc
_typing: check _idfunc arity before indexing args
youknowone
committed
a625bb7
exceptions: require a sequence for the ExceptionGroup excs argument
youknowone
committed
3a5a6bf
mmap: treat an inverted find/rfind range as empty
youknowone
committed
8074cd2
collections: give deque and defaultdict a GC traverse
youknowone
committed
4bfb4e5
itertools: opt the iterator types into GC traverse
youknowone
committed
b84a311
_ctypes: mask an out-of-range int instead of panicking
youknowone
committed
126a1f7
hashlib: import _hashlib when a hash module is loaded
youknowone
committed
18be6c8
_csv: fall back to the built-in dialect defaults when none is registered
youknowone
committed
12c1e5b
builtins: reject surrogates in compile()/eval() source instead of panicking
youknowone
committed
737ded1
_suggestions: require a list for _generate_suggestions candidates
youknowone
committed
12186b0
lzma: size the filter chain before consuming it
youknowone
committed
06229d8
classmethod: opt into GC traverse
youknowone
committed
56d1054
posix: reject unbounded iterables in posix_spawn and setgroups
youknowone
committed
131c89c
_ctypes: size Array slice assignment and _argtypes_ before collecting
youknowone
committed
f8c3167
sys: propagate the breakpointhook warning failure
youknowone
committed
cb3c217
structseq: require the sequence argument when constructing a struct sequence
youknowone
committed
2ab38ec
Guard the hash slot dispatch against unbounded recursion
youknowone
committed
98a62d2
genericalias: guard the __parameters__ walk against unbounded recursion
youknowone
committed
2e1173b
Fix the type confusion in PyAtomicRef's Debug impl
youknowone
committed
661b1af
_sre: disallow instantiating Match
youknowone
committed
eefb38b
utils: return the empty repr instead of asserting a non-empty collection
youknowone
committed
0ca5a81
itertools: advance cycle's index atomically
youknowone
committed
3d8b930
_ctypes: reject a float argument to a foreign call without argtypes
youknowone
committed
bce0970
Report the iterator itself from PyIter's traverse
youknowone
committed
95ef3f7
Remove the obsolete expectedFailure on test_code_module.test_unicode_error
youknowone
committed
ead3b16
itertools: reserve the combination indices fallibly
youknowone
committed
c6b4df3
Apply the struct sequence constructor's dict argument
youknowone
committed
cc6a434
_imp: report the argument count in find_frozen's arity error
youknowone
committed
f6808a2
Add regression tests for the reproduced crashers
youknowone
committed
1340654
Tolerate a changed-size RuntimeError in the set repr stress test
youknowone
committed
bbe08af
Move the crash regression tests into per-module snippets
youknowone
committed
6545c58