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Christian Aurich Zanettini Martins 50c24913a4 gh-159399: Fix crash in codecs.encode() on a concurrently unregistered codec (#159400 )

* gh-159399: Fix crash in codecs.encode() on a concurrently unregistered codec

In the free-threaded build, codec_getitem() released the CodecInfo tuple
returned by _PyCodec_Lookup() before taking a reference to the encoder
or decoder it returns. If another thread cleared the lookup cache in
between with codecs.unregister(), the tuple could hold the last
reference to the item, which was then freed before it was increfed.

Take the reference before releasing the tuple, as
codec_getitem_checked() already does.

* Remove the free-threading stress test

2026-10-21 09:52:44 -07:00

clinic

gh-157361: Implement aiter() in Python instead of C (#157687 )

2026-10-20 15:33:36 +05:30

frozen_modules

gh-97669: Create Tools/build/ directory (#97963 )

2022-10-17 12:01:00 +02:00

_contextvars.c

gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770 )

2026-03-24 17:47:55 +00:00

_warnings.c

gh-159739: Fix reference and error handling in warnings (#159758 )

2026-10-20 21:34:23 -07:00

asdl.c

bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)

2021-03-23 20:47:40 +01:00

asm_trampoline_aarch64.S

gh-149800: Split perf trampoline assembly into per-architecture files (#149894 )

2026-05-23 08:03:52 -04:00

asm_trampoline_riscv64.S

gh-149800: Split perf trampoline assembly into per-architecture files (#149894 )

2026-05-23 08:03:52 -04:00

asm_trampoline_x86_64.S

gh-149800: Split perf trampoline assembly into per-architecture files (#149894 )

2026-05-23 08:03:52 -04:00

assemble.c

gh-158585: Simplify PyBytesWriter_Finish() (#158822 )

2026-10-05 04:47:04 +02:00

ast_preprocess.c

gh-152708: Fix AST generation asymmetry for unary positive in match statements (#152712 )

2026-09-23 19:56:53 -07:00

ast_unparse.c

gh-143055: Fix crash in AST unparser when unparsing dict comprehension unpacking (#145556 )

2026-03-09 10:37:23 -07:00

ast.c

gh-152708: Fix AST generation asymmetry for unary positive in match statements (#152712 )

2026-09-23 19:56:53 -07:00

bltinmodule.c

gh-157361: Implement aiter() in Python instead of C (#157687 )

2026-10-20 15:33:36 +05:30

bootstrap_hash.c

gh-153400: Support os.getrandom() on old glibc versions (#155762 )

2026-09-10 22:58:27 +02:00

brc.c

gh-157838: Merge biased refcounts on behalf of detached threads (#157839 )

2026-09-23 22:08:56 +05:30

bytecodes.c

gh-142349: Simplify lazy import resolution (#158282 )

2026-10-01 16:20:45 +00:00

ceval_gil.c

gh-154757: Remove deprecated PyEval_InitThreads() function (#158037 )

2026-09-24 10:47:59 +02:00

ceval_macros.h

gh-129752: Don't update adaptive counters when TLBC=0 in free-threading. (gh-155497)

2026-08-13 00:12:39 +00:00

ceval.c

gh-159603: Call pthread_attr_init() in hardware_stack_limits() (#159857 )

2026-10-20 13:15:57 -05:00

ceval.h

gh-159136: Avoid stop-the-world when setting function name attributes (gh-159269)

2026-10-16 20:24:12 -07:00

codecs.c

gh-159399: Fix crash in codecs.encode() on a concurrently unregistered codec (#159400 )

2026-10-21 09:52:44 -07:00

codegen.c

gh-145019: improve SyntaxError when match patterns bind different names (#145939 )

2026-10-19 13:02:04 -07:00

compile.c

gh-129724: Intern string constants in the compiler, not per code object (GH-159193)

2026-10-12 21:37:55 -07:00

condvar.h

gh-104530: Enable native Win32 condition variables by default (GH-104531)

2024-02-02 13:50:51 +00:00

config_common.h

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

context.c

gh-155519: fix data-race for Context.ctx_vars (#155522 )

2026-08-15 11:00:03 +05:30

critical_section.c

gh-150902: Optimize PyCriticalSection2 to skip locking the same locks held by the current CS2

2026-06-16 16:56:37 +00:00

crossinterp_data_lookup.h

gh-147960: Fix memory leak in crossinterp _tuple_shared() on alloc failure (#147961 )

2026-04-01 18:34:55 +02:00

crossinterp_exceptions.h

gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135369)

2025-06-13 16:45:21 -06:00

crossinterp.c

gh-151842: Fix crash upon OOM in _interpreters.capture_exception (GH-151843)

2026-06-23 16:31:47 -04:00

dtoa.c

gh-158446: Reject float format precision near INT_MAX (GH-158474)

2026-09-30 05:22:37 +00:00

dup2.c

gh-108765: Python.h no longer includes <unistd.h> (#108783 )

2023-09-02 16:50:18 +02:00

dynamic_annotations.c

bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748 )

2017-12-12 13:55:04 +02:00

dynload_hpux.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_shlib.c

gh-122931: Allow stable abi3 API extensions to include a multiarch tuple in the filename (GH-152461)

2026-07-27 15:05:40 +02:00

dynload_stub.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_win.c

gh-152433: Windows: make `dynload_win.c` UWP compatible (#152797 )

2026-09-11 15:35:34 +02:00

emscripten_signal.c

GH-108614: Unbreak emscripten build (GH-109132)

2023-09-08 17:54:45 +01:00

emscripten_syscalls.c

gh-156780: Emscripten: add missing EM_JS_DEPS (#156798 )

2026-09-08 15:26:48 +08:00

errors.c

gh-158893: Add internal _Py_strerror() function (#158982 )

2026-10-07 20:31:27 +00:00

executor_cases.c.h

gh-142349: Simplify lazy import resolution (#158282 )

2026-10-01 16:20:45 +00:00

fileutils.c

gh-158893: Add internal _Py_strerror() function (#158982 )

2026-10-07 20:31:27 +00:00

flowgraph.c

gh-130279: Fix missing exception handlers for jumps in loops (#159460 )

2026-10-19 09:10:15 +01:00

frame.c

gh-144446: Fix thread safety of gi_frame, cr_frame and ag_frame in free-threading (#156037 )

2026-09-02 23:26:04 +05:30

frozen.c

gh-157361: Implement anext() in Python instead of C (#157362 )

2026-09-16 18:58:59 +05:30

frozenmain.c

Use PyConfig_Get() in frozenmain.c (#137421 )

2025-08-06 14:33:28 +02:00

future.c

gh-145868: Suggest names on typos in __future__ imports (#154347 )

2026-09-24 16:29:48 +00:00

gc_free_threading.c

gh-159739: Clear free-threaded GC worklists after early errors (#159979 )

2026-10-20 21:32:19 -07:00

gc_gil.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

gc.c

gh-159137: Untrack tuples and count survivors in move_unreachable() (#159154 )

2026-10-11 16:01:50 +00:00

generated_cases.c.h

gh-142349: Simplify lazy import resolution (#158282 )

2026-10-01 16:20:45 +00:00

getargs.c

gh-144175: Remove internal _PyArg_ParseStack() function (#159150 )

2026-10-12 19:56:53 +02:00

getcompiler.c

Revert "gh-158445: Allocate memory in the heap in Py_GetVersion() (#158608 )" (#159519 )

2026-10-16 10:49:53 +00:00

getcopyright.c

gh-126133: Only use start year in PSF copyright, remove end years (#126236 )

2024-11-12 15:59:19 +02:00

getopt.c

Fix _PyOS_GetOpt() error message for non-ASCII characters (#158626 )

2026-10-03 15:37:58 +02:00

getplatform.c

bpo-32150: Expand tabs to spaces in C files. (#4583 )

2017-11-28 17:56:10 +02:00

getversion.c

Revert "gh-158445: Allocate memory in the heap in Py_GetVersion() (#158608 )" (#159519 )

2026-10-16 10:49:53 +00:00

hamt.c

gh-155496: Use Argument Clinic for more functions and methods (GH-158134)

2026-09-27 19:00:22 +03:00

hashtable.c

gh-111545: Add Py_HashPointer() function (#112096 )

2023-12-06 15:09:22 +01:00

import.c

gh-157384: Set package context in PyImport_CreateModuleFromInitfunc() (GH-157387)

2026-10-13 13:35:19 +00:00

importdl.c

gh-140011: Delete importdl assertion that prevents importing embedded modules from packages (GH-141605)

2025-11-26 14:12:49 +01:00

index_pool.c

gh-91048: Refactor and optimize remote debugging module (#134652 )

2025-05-25 20:19:29 +00:00

initconfig.c

gh-159739: Release replaced PyInitConfig strings (GH-159769)

2026-10-19 22:56:57 +00:00

instruction_sequence.c

GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)

2026-01-16 09:11:58 +00:00

instrumentation.c

gh-158121: Preserve instruction events when line monitoring is disabled (#158456 )

2026-10-19 12:17:16 -07:00

interpconfig.c

gh-159739: Handle interpreter configuration encoding errors (#159747 )

2026-10-19 19:30:32 -07:00

intrinsics.c

gh-138912: Add fast path for match class patterns without sub-patterns (#144820 )

2026-09-26 13:00:10 -07:00

jit_publish.c

GH-126910: Add GNU backtrace support for unwinding JIT frames (#149104 )

2026-05-05 09:29:07 +01:00

jit_unwind.c

gh-139808: Add branch protections for aarch64 in asm_trampoline.S (#130864 )

2026-05-12 15:42:44 +00:00

jit.c

GH-148960: Reduce the size of the debug stencils to less than half. (GH-150551)

2026-06-01 17:56:16 +01:00

legacy_tracing.c

gh-148037: remove critical section from PyCode_Addr2Line (#148103 )

2026-04-10 17:58:17 +05:30

lock.c

gh-158973: Reset the warnings lock after fork in the child (gh-158974)

2026-10-16 20:11:09 -07:00

marshal.c

GH-158628: Implement sys._wasi_info (GH-159039)

2026-10-13 23:53:38 +00:00

modsupport.c

gh-146636: Py_mod_abi mandatory for modules created from slots array (GH-146855)

2026-04-02 13:54:21 +02:00

mysnprintf.c

Add a warning message about PyOS_snprintf (#95993 )

2022-10-07 11:49:53 -07:00

mystrtoul.c

gh-108765: Python.h no longer includes <ctype.h> (#108831 )

2023-09-03 18:54:27 +02:00

object_stack.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

opcode_targets.h

gh-145855: Remove the DELETE_ATTR bytecode (GH-146216)

2026-07-06 10:41:47 +01:00

optimizer_analysis.c

gh-157833: Fix specialized C calls with additional method flags (GH-157834)

2026-09-30 14:37:24 +01:00

optimizer_bytecodes.c

gh-157468: Validate correct builtins used under JIT (GH-157766)

2026-10-01 12:15:51 +01:00

optimizer_cases.c.h

gh-142349: Simplify lazy import resolution (#158282 )

2026-10-01 16:20:45 +00:00

optimizer_symbols.c

gh-157468: Validate correct builtins used under JIT (GH-157766)

2026-10-01 12:15:51 +01:00

optimizer.c

gh-154014: Initialize cold executor vm_data fields (GH-154142)

2026-07-22 10:17:47 +01:00

parking_lot.c

gh-148820: Fix _PyRawMutex use-after-free on spurious semaphore wakeup (gh-148852)

2026-04-22 14:31:19 -04:00

pathconfig.c

gh-158001: Remove Py_SetProgramName() function (#158024 )

2026-09-24 12:52:54 +02:00

perf_jit_trampoline.c

gh-156114: Fix crash in perf trampoline with unencodable code names (#156300 )

2026-09-18 17:04:21 -04:00

perf_trampoline.c

gh-156114: Fix crash in perf trampoline with unencodable code names (#156300 )

2026-09-18 17:04:21 -04:00

preconfig.c

Cleanup Python/getopt.c: add _PyOS_GetOpt structure (#158362 )

2026-10-01 14:58:55 +00:00

pyarena.c

Chore: Fix typo in pyarena.c (#126527 )

2024-11-07 16:37:41 +01:00

pyctype.c

…

pyfpe.c

bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507)

2022-01-13 09:46:04 +01:00

pyhash.c

gh-141226: Deprecate PEP-456 support for embedders (#141287 )

2026-02-21 12:42:13 +01:00

pylifecycle.c

Revert "gh-158445: Allocate memory in the heap in Py_GetVersion() (#158608 )" (#159519 )

2026-10-16 10:49:53 +00:00

pymath.c

bpo-45440: Remove pymath.c fallbacks (GH-28977)

2021-10-15 19:45:34 +02:00

pystate.c

gh-159041: Fix use-after-free in asyncio task tracking during thread state cleanup (#159073 )

2026-10-19 10:16:36 +05:30

pystats.c

gh-145685: per-type method cache implementation (#150160 )

2026-07-21 14:11:22 +05:30

pystrcmp.c

gh-108767: Replace ctype.h functions with pyctype.h functions (#108772 )

2023-09-01 18:36:53 +02:00

pystrhex.c

gh-155742: Use PyBytesWriter in _Py_strhex_impl() (#157734 )

2026-09-18 14:09:09 +02:00

pystrtod.c

gh-158446: Reject float format precision near INT_MAX (GH-158474)

2026-09-30 05:22:37 +00:00

Python-ast.c

gh-157407: Fix a compilation error on Windows. (#158048 )

2026-09-24 15:06:56 +09:00

Python-tokenize.c

gh-153569: Simplify tokenizer source views and reader ownership (#158849 )

2026-10-13 13:01:17 +00:00

pythonrun.c

gh-159465: Improve incomplete input detection (#159466 )

2026-10-18 11:54:19 +01:00

pytime.c

gh-152849: Fix OverflowError message for out-of-range timestamps in the time module (#152850 )

2026-07-06 16:50:15 +02:00

qsbr.c

gh-159860: Adjust QSBR cache line size from 64 to 128 on AArch64 (gh-159862)

2026-10-20 20:06:55 +00:00

README

Issue #18093 : Factor out the programs that embed the runtime

2014-07-25 21:52:14 +10:00

record_functions.c.h

gh-149358: Generating JIT recorder transformers and stabilizing family layouts (GH-149359)

2026-05-21 17:06:52 +01:00

remote_debug.h

gh-156545, gh-158539: Fix deep flamegraph export on small C stacks and macOS runtime lookup (#158874 )

2026-10-05 20:56:24 +01:00

remote_debugging.c

gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 )

2025-12-06 22:37:34 +00:00

slots_generated.c

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

slots.c

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

slots.toml

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

specialize.c

gh-157833: Fix specialized C calls with additional method flags (GH-157834)

2026-09-30 14:37:24 +01:00

stackrefs.c

gh-131527: Stackref debug borrow checker (#140599 )

2025-11-05 11:12:56 -08:00

stdlib_module_names.h

gh-157361: Implement anext() in Python instead of C (#157362 )

2026-09-16 18:58:59 +05:30

structmember.c

gh-146270: Fix PyMember_SetOne(..., NULL) not being atomic (gh-148800)

2026-05-06 09:50:24 -04:00

suggestions.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

symtable.c

gh-159465: Improve incomplete input detection (#159466 )

2026-10-18 11:54:19 +01:00

sysmodule.c

bpo-24053: Add EXIT_SUCCESS and EXIT_FAILURE values in the sys module (GH-14773)

2026-10-20 10:10:10 -07:00

thread_nt.h

gh-134745: Remove dead code in thread_nt.h left by gh-134747 (#154338 )

2026-07-25 00:33:29 +02:00

thread_pthread_stubs.h

gh-125161: return non zero value in pthread_self on wasi (#125303 )

2024-10-13 20:59:41 +05:30

thread_pthread.h

gh-157415: Fix data race in pthread wrapper (#157430 )

2026-09-17 16:34:50 +02:00

thread.c

gh-134745: Use "pymutex" for sys.thread_info on Windows (#141140 )

2025-11-06 16:10:39 +01:00

tier2_engine.md

Docs: fix spelling of the word 'transferring' (#116641 )

2024-03-13 23:53:32 +01:00

traceback.c

gh-151157: Speed up PyObject_CallMethod via _PyObject_GetMethod (#151158 )

2026-10-05 18:44:28 +00:00

tracemalloc.c

gh-155725: Remove PyGILState_Ensure usage from tracemalloc (#156409 )

2026-08-30 13:04:55 +05:30

typecache.c

gh-145685: per-type method cache implementation (#150160 )

2026-07-21 14:11:22 +05:30

uniqueid.c

gh-128923: Use zero to indicate unassigned unique id (#128925 )

2025-01-17 16:42:27 +01:00

vm-state.md

gh-133079: Remove Py_C_RECURSION_LIMIT & PyThreadState.c_recursion_remaining (GH-133080)

2025-04-29 12:56:20 +02:00

wasm_trampoline.c

gh-129040: Use wasm-gc to handle pointer casts in wasi (GH-158617)

2026-10-09 22:25:44 +00:00

README

Miscellaneous source files for the main Python shared library