issues Search Results · repo:python/cpython author:devdanzin
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inpython/cpython (press backspace or delete to remove)Bug report
Bug description:
A two-pass review of Lib/idlelib turned up 69 findings — 37 FIX (a wrong result, silent data loss, or an unreachable
feature) and 32 CONSIDER. Every one carries a file:line, ...
stdlib
topic-IDLE
type-bug
devdanzin
Crash report
What happened?
Doc/c-api/dict.rst tells a PyDict_WatchCallback two things:
The callback may inspect but must not modify dict; doing so could have unpredictable effects, including infinite ...
interpreter-core
type-crash
Crash report
What happened?
reversed() on a dict can dereference an entry index that is far past the end of the dict s current keys table, from
ordinary pure-Python code. On a release build this segfaults. ...
interpreter-core
type-crash
Crash report
What happened?
On the free-threaded build, advancing a single shared iterator over a contextvars.Context from multiple threads corrupts
the iterator s traversal cursor and dereferences a ...
interpreter-core
topic-free-threading
type-crash
Crash report
What happened?
tuple.__hash__ and frozendict.__hash__ (frozendict is new on main, gh-151722) share a bug: both hash their contents with
PyObject_Hash(...) inside a loop that has no recursion ...
interpreter-core
type-crash
Crash report
What happened?
Computing __parameters__ of a generic alias whose argument is a self-referential (or merely very deeply nested)
list/tuple crashes the interpreter with a C-stack overflow. ...
interpreter-core
topic-typing
type-crash
Crash report
What happened?
On a free-threaded build, advancing a single, shared dict iterator (iter({...})) from multiple threads double-frees the
underlying dict and crashes.
All three dict iterators ...
interpreter-core
topic-free-threading
type-crash
Bug report
Bug description:
On a free-threaded (--disable-gil) build, reading __qualname__ on the same descriptor from multiple threads is a data
race on the lazily-populated cache descr- d_qualname. ...
interpreter-core
topic-free-threading
type-bug
Crash report
What happened?
On a free-threaded (--disable-gil) build, iterating a single, shared types.GenericAlias iterator (e.g. iter(list[int]))
from multiple threads segfaults. ga_iternext (Objects/genericaliasobject.c) ...
interpreter-core
topic-free-threading
type-crash
Crash report
What happened?
ThreadSanitizer fuzzing of free-threaded CPython main turned up 15 data races where a built-in object or
interpreter-global state is accessed concurrently without the atomics ...
extension-modules
interpreter-core
topic-free-threading
type-crash
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