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Miss Islington (bot) 57ba3b0c6e
[3.13] gh-122527: Fix a crash on deallocation of `PyStructSequence` (GH-122577) (#122625) 
gh-122527: Fix a crash on deallocation of `PyStructSequence` (GH-122577)

The `PyStructSequence` destructor would crash if it was deallocated after
its type's dictionary was cleared by the GC, because it couldn't compute
the "real size" of the instance. This could occur with relatively
straightforward code in the free-threaded build or with a reference
cycle involving the type in the default build, due to differing orders
in which `tp_clear()` was called.

Account for the non-sequence fields in `tp_basicsize` and use that,
along with `Py_SIZE()`, to compute the "real" size of a
`PyStructSequence` in the dealloc function. This avoids the accesses to
the type's dictionary during dealloc, which were unsafe.
(cherry picked from commit 4b63cd170e)

Co-authored-by: Sam Gross <colesbury@gmail.com>
 		2024-09-02 12:47:18 +02:00
..
clinic [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
mimalloc [3.13] gh-123022: Fix crash with `Py_Initialize` in background thread (GH-123052) (#123114) 2024-08-17 20:38:02 +00:00
stringlib gh-117431: Adapt bytes and bytearray .find() and friends to Argument Clinic (#117502) 2024-04-12 07:40:55 +00:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
abstract.c gh-116316: Fix typo in `UNARY_FUNC(PyNumber_Positive)` macros (GH-116317) 2024-03-04 17:57:01 +00:00
boolobject.c [3.13] gh-122982: Extend the deprecation period for bool inversion by two years (GH-123306) (#123316) 2024-08-25 19:48:34 +00:00
bytearrayobject.c gh-117431: Adapt bytes and bytearray .find() and friends to Argument Clinic (#117502) 2024-04-12 07:40:55 +00:00
bytes_methods.c gh-117431: Adapt bytes and bytearray .find() and friends to Argument Clinic (#117502) 2024-04-12 07:40:55 +00:00
bytesobject.c gh-117431: Adapt bytes and bytearray .find() and friends to Argument Clinic (#117502) 2024-04-12 07:40:55 +00:00
call.c gh-106320: Remove _PyFunction_Vectorcall() API (#107071) 2023-07-22 21:44:33 +00:00
capsule.c gh-108240: Add pycore_capsule.h internal header file (#108596) 2023-08-29 01:20:02 +00:00
cellobject.c gh-117323: Make `cell` thread-safe in free-threaded builds (#117330) 2024-03-29 13:35:43 -04:00
classobject.c gh-118362: Fix thread safety around lookups from the type cache in the face of concurrent mutators (#118454) 2024-05-06 10:50:35 -07:00
codeobject.c [3.13] gh-121863: Immortalize names in code objects to avoid crash (GH-121903) (GH-121904) 2024-07-17 09:55:22 +00:00
complexobject.c [3.13] gh-109218: Improve documentation for the complex() constructor (GH-119687) (GH-119803) 2024-05-30 20:44:20 +00:00
descrobject.c [3.13] bpo-24766: doc= argument to subclasses of property not handled correctly (GH-2487) (GH-120305) 2024-06-11 12:52:27 +03:00
dictnotes.txt bpo-46845: Reduce dict size when all keys are Unicode (GH-31564) 2022-03-02 08:09:28 +09:00
dictobject.c [3.13] gh-123083: Fix a potential use-after-free in ``STORE_ATTR_WITH… (#123235) 2024-08-23 01:37:26 +09:00
enumobject.c gh-106320: Create pycore_modsupport.h header file (#106355) 2023-07-03 09:39:11 +00:00
exception_handling_notes.txt GH-105848: Simplify the arrangement of CALL's stack (GH-107788) 2023-08-09 18:19:39 +00:00
exceptions.c [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
fileobject.c gh-87193: Support bytes objects with refcount > 1 in _PyBytes_Resize() (GH-117160) 2024-03-25 16:32:11 +01:00
floatobject.c [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
frame_layout.md gh-109094: replace frame->prev_instr by frame->instr_ptr (#109095) 2023-10-26 13:43:10 +00:00
frameobject.c [3.13] GH-120097: Make FrameLocalsProxy a mapping (GH-120101) (GH-120749) 2024-08-23 10:26:03 +01:00
funcobject.c gh-117657: Disable the function/code cache in free-threaded builds (#118301) 2024-05-03 16:21:04 -04:00
genericaliasobject.c [3.13] gh-121660: Fix `ga_getitem` by explicitly checking for `NULL` result (GH-121661) (#121761) 2024-07-14 11:48:33 +00:00
genobject.c gh-110209: Add __class_getitem__ for generator and coroutine (#110212) 2024-05-06 18:41:32 -07:00
iterobject.c gh-106320: Remove private _PyEval function (#108433) 2023-08-24 20:25:22 +02:00
listobject.c [3.13] gh-119344: Make critical section API public (GH-119353) (#120856) 2024-06-21 20:20:41 +00:00
listsort.txt GH-116939: Rewrite binarysort() (#116940) 2024-03-21 22:27:25 -05:00
lnotab_notes.txt Document the `co_lines` method on code objects (#113682) 2024-01-03 19:29:24 +00:00
locations.md GH-88116: Use a compact format to represent end line and column offsets. (GH-91666) 2022-04-21 16:10:37 +01:00
longobject.c [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
memoryobject.c [3.13] gh-120155: Fix copy/paste error in HAVE_SUBOFFSETS_IN_LAST_DIM() (GH-120228) (#120238) 2024-06-07 16:23:34 +00:00
methodobject.c gh-113024: C API: Add PyObject_GenericHash() function (GH-113025) 2024-03-22 20:19:10 +02:00
moduleobject.c [3.13] gh-116322: Fix typo in the GH-ifdef check (GH-122268) (#122284) 2024-07-25 14:58:34 +00:00
namespaceobject.c gh-108191: Add support of positional argument in SimpleNamespace constructor (GH-108195) 2024-04-25 00:39:54 +03:00
object.c [3.13] gh-123448: Move `_PyNoDefault_Type` to the static types array (GH-123449) (#123450) 2024-08-28 18:57:28 -07:00
object_layout.md GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_312.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_312.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_313.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_full_312.gv GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_full_312.png GH-96068: Document object layout (GH-96069) 2022-08-23 13:55:43 +01:00
object_layout_full_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_full_313.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
obmalloc.c [3.13] gh-121460: Skip freeing unallocated arenas (gh-121589) 2024-07-10 17:05:11 +00:00
odictobject.c gh-112075: Make _PyDict_LoadGlobal thread safe (#117529) 2024-04-04 12:26:07 -07:00
picklebufobject.c gh-104922: remove PY_SSIZE_T_CLEAN (#106315) 2023-07-02 15:07:46 +09:00
rangeobject.c gh-117764: Fix and add signatures for many builtins (GH-117769) 2024-04-12 13:56:41 +03:00
setobject.c [3.13] gh-117657: Fix TSAN races in setobject.c (GH-121511) (#121541) 2024-07-09 16:36:36 +00:00
sliceobject.c gh-117764: Add docstrings and signatures for the types of None, Ellipsis and NotImplemented (GH-117813) 2024-04-12 15:45:23 +03:00
structseq.c [3.13] gh-122527: Fix a crash on deallocation of `PyStructSequence` (GH-122577) (#122625) 2024-09-02 12:47:18 +02:00
tupleobject.c [3.13] GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428) (gh-121565) 2024-07-10 08:12:54 +00:00
typeobject.c [3.13] gh-117482: Fix the Slot Wrapper Inheritance Tests (gh-122249) 2024-07-29 10:25:02 -06:00
typeslots.inc bpo-41073: PyType_GetSlot() can now accept static types. (GH-21931) 2020-11-10 12:53:46 -08:00
typeslots.py bpo-41073: PyType_GetSlot() can now accept static types. (GH-21931) 2020-11-10 12:53:46 -08:00
typevarobject.c [3.13] Rename `notimplemented_methods` into `nodefault_methods` (GH-118896) (#118898) 2024-05-10 13:08:31 +00:00
unicodectype.c bpo-46670: Remove unused macros in the Objects directory (GH-31193) 2022-02-07 16:21:41 +01:00
unicodeobject.c [3.13] gh-122888: Fix crash on certain calls to str() (GH-122889) (#122947) 2024-08-12 16:53:05 +00:00
unicodetype_db.h gh-96954: Fix `make regen-unicodedata` in out-of-tree builds (#112118) 2023-11-15 16:42:17 +00:00
unionobject.c gh-108511: Add C API functions which do not silently ignore errors (GH-109025) 2023-09-17 14:23:31 +03:00
weakrefobject.c [3.13] gh-121652: Handle `allocate_weakref` returning NULL (GH-121653) (#121721) 2024-07-13 16:31:50 +00:00

README 

Source files for various builtin objects