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6e73225c32 [3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201 ) (#146220 )

gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201)

Avoid calling memcpy(data + writer->pos, NULL, 0)
which has an undefined behavior.


(cherry picked from commit cd10a2e65c)

Co-authored-by: Shamil <[email protected]>

2026-03-20 16:26:18 +00:00

clinic

[3.14] gh-145713: make bytearray.resize thread-safe on free-threading (#145714 ) (#145799 )

2026-03-13 20:34:24 +05:30

mimalloc

[3.14] gh-145615: Fix mimalloc page leak in the free-threaded build (gh-145626) (#145691 )

2026-03-09 14:17:57 -04:00

stringlib

[3.14] gh-145092: Fix compiler warning for memchr() and wcschr() returning const pointer (GH-145093) (GH-145102)

2026-02-22 08:28:17 +00:00

abstract.c

gh-131238: Remove includes from pycore_interp.h (#131495 )

2025-03-20 11:35:23 +00:00

boolobject.c

gh-111178: remove redundant casts for functions with correct signatures (#131673 )

2025-04-01 17:18:11 +02:00

bytearrayobject.c

[3.14] gh-145713: make bytearray.resize thread-safe on free-threading (#145714 ) (#145799 )

2026-03-13 20:34:24 +05:30

bytes_methods.c

…

bytesobject.c

[3.14] gh-140939: Fix memory leak in _PyBytes_FormatEx error path (GH-140957) (#141154 )

2025-11-06 16:20:03 +00:00

call.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

capsule.c

gh-111178: fix UBSan failures in Objects/capsule.c (GH-128239)

2025-01-08 14:55:04 +01:00

cellobject.c

gh-127271: Replace use of PyCell_GET/SET (gh-127272)

2024-12-03 10:33:06 -08:00

classobject.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

codeobject.c

[3.14] gh-144981: Make PyUnstable_Code_SetExtra/GetExtra thread-safe (GH-144980) (#145052 )

2026-03-05 08:26:09 -05:00

complexobject.c

gh-111178: Change Argument Clinic signature for @classmethod (#131157 )

2025-03-12 17:42:07 +01:00

descrobject.c

GH-124715: Move trashcan mechanism into Py_Dealloc (GH-132280)

2025-04-30 11:37:53 +01:00

dictnotes.txt

…

dictobject.c

[3.14] gh-134043: use stackrefs for dict lookup in _PyObject_GetMethodStackRef (GH-136412) (#146077 )

2026-03-17 16:59:26 -04:00

enumobject.c

gh-131525: Cache the result of tuple_hash (#131529 )

2025-03-27 09:57:06 -04:00

exceptions.c

GH-124715: Move trashcan mechanism into Py_Dealloc (GH-132280)

2025-04-30 11:37:53 +01:00

fileobject.c

gh-111178: fix UBSan failures for PyStdPrinter_Object (#131607 )

2025-03-24 10:57:14 +01:00

floatobject.c

[3.14] gh-146092: Fix error handling in _BINARY_OP_ADD_FLOAT opcode (#146119 )

2026-03-19 12:14:33 +01:00

frameobject.c

[3.14] gh-146092: Handle _PyFrame_GetFrameObject() failures properly (#146124 ) (#146132 )

2026-03-18 17:57:08 +00:00

funcobject.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

genericaliasobject.c

[3.14] gh-143635: Fix crash in ga_repr_items_list (GH-143670) (#143851 )

2026-01-15 04:16:46 +00:00

genobject.c

[3.14] gh-142766: Clear frame when generator.close() is called (gh-142838) (#142899 )

2025-12-17 18:33:15 +00:00

interpolationobject.c

[3.14] gh-132661: Add default value (of "") for Interpolation.expression (GH-136441) (#136511 )

2025-07-10 14:52:18 +00:00

iterobject.c

gh-131666: mark anext_awaitable.close as a METH_NOARGS instead of METH_VARARGS (#131671 )

2025-03-25 09:03:22 +05:30

listobject.c

[3.14] gh-145036: Fix data race for list capacity in free-threading (GH-145365) (#145881 )

2026-03-12 22:06:12 -04:00

listsort.txt

…

lnotab_notes.txt

gh-119786: add code object doc, inline locations.md into it (#126832 )

2024-11-22 19:27:41 +00:00

longobject.c

[3.14] gh-142554: avoid divmod crashes due to bad _pylong.int_divmod (GH-142673) (#142696 )

2025-12-14 09:04:37 +00:00

memoryobject.c

[3.14] gh-142664: fix PyObject_Hash invokation post GH-143217 (GH-143223) (#143224 )

2025-12-27 14:55:45 +00:00

methodobject.c

[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614 ) (#136119 )

2025-06-30 15:59:22 +02:00

moduleobject.c

[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614 ) (#136119 )

2025-06-30 15:59:22 +02:00

namespaceobject.c

[3.14] gh-143636: fix a crash when calling `__replace__ on invalid SimpleNamespace` instances (GH-143655) (#145938 )

2026-03-14 10:35:41 +00:00

object_layout_312.gv

…

object_layout_312.png

[3.14] gh-71648: Optimize PNG files (GH-138842) (GH-138851)

2025-10-07 20:52:12 +02:00

object_layout_313.gv

…

object_layout_313.png

[3.14] gh-71648: Optimize PNG files (GH-138842) (GH-138851)

2025-10-07 20:52:12 +02:00

object_layout_full_312.gv

…

object_layout_full_312.png

[3.14] gh-71648: Optimize PNG files (GH-138842) (GH-138851)

2025-10-07 20:52:12 +02:00

object_layout_full_313.gv

…

object_layout_full_313.png

[3.14] gh-71648: Optimize PNG files (GH-138842) (GH-138851)

2025-10-07 20:52:12 +02:00

object_layout.md

…

object.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

obmalloc.c

[3.14] gh-145615: Fix mimalloc page leak in the free-threaded build (gh-145626) (#145691 )

2026-03-09 14:17:57 -04:00

odictobject.c

[3.14] gh-125996: fix thread safety of collections.OrderedDict (GH-133734) (#140053 )

2025-10-13 23:25:24 +05:30

picklebufobject.c

[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614 ) (#136119 )

2025-06-30 15:59:22 +02:00

rangeobject.c

[3.14] GH-141312: Allow only integers to longrangeiter_setstate state (GH-141317) (GH-141559)

2025-11-15 21:30:25 +02:00

README

…

setobject.c

[3.14] gh-141805: Fix crash after concurrent addition objects with the same hash to set (GH-143815) (GH-143849)

2026-01-15 09:31:16 +02:00

sliceobject.c

gh-111178: Fix function signatures for multiple tests (#131496 )

2025-03-20 12:27:03 +01:00

structseq.c

[3.14] gh-145376: Fix GC tracking in structseq.__replace__ (GH-145820) (#145922 )

2026-03-16 14:38:15 +05:30

templateobject.c

[3.14] gh-142433: Move deref to below the error when checking for laststring (GH-142402) (#142524 )

2025-12-10 16:07:59 +00:00

tupleobject.c

[3.14] GH-139951: Fix major GC performance regression. Backport of GH-140262 (GH-140447)

2025-10-23 15:26:58 +01:00

typeobject.c

[3.14] gh-145685: Improve scaling of type attribute lookups (gh-145774) (#145874 )

2026-03-12 14:33:05 -04:00

typeslots.inc

Revert "gh-133395: add option for extension modules to specialize BINARY_OP/SUBSCR, apply to arrays (#133396 )" (#133498 )

2025-05-06 13:12:26 +03:00

typeslots.py

gh-124153: Implement PyType_GetBaseByToken() and Py_tp_token slot (GH-124163)

2024-09-18 09:18:19 +02:00

typevarobject.c

[3.14] gh-143089: Fix ParamSpec default examples to use list instead of tuple (GH-143179) (#143538 )

2026-01-08 11:49:41 +00:00

unicodectype.c

gh-82045: Correct and deduplicate "isprintable" docs; add test. (GH-130118)

2025-02-14 18:16:47 +01:00

unicodeobject.c

[3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201 ) (#146220 )

2026-03-20 16:26:18 +00:00

unicodetype_db.h

closes gh-124016: update Unicode to 16.0.0 (#124017 )

2024-09-13 07:47:04 -07:00

unionobject.c

[3.14] gh-140348: Fix using | on unusual objects plus Unions (GH-140383) (#140948 )

2025-11-03 15:16:03 +00:00

weakrefobject.c

gh-129354: Use PyErr_FormatUnraisable() function (#129511 )

2025-01-31 13:16:08 +01:00

README

Source files for various builtin objects