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Serhiy Storchaka 73b3040f59
[3.11] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) (GH-134341) 
If the error handler is used, a new bytes object is created to set as
the object attribute of UnicodeDecodeError, and that bytes object then
replaces the original data. A pointer to the decoded data will became invalid
after destroying that temporary bytes object. So we need other way to return
the first invalid escape from _PyUnicode_DecodeUnicodeEscapeInternal().

_PyBytes_DecodeEscape() does not have such issue, because it does not
use the error handlers registry, but it should be changed for compatibility
with _PyUnicode_DecodeUnicodeEscapeInternal().
(cherry picked from commit 9f69a58623)
(cherry picked from commit 6279eb8c07)
(cherry picked from commit a75953b347)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
 		2025-06-02 17:52:52 +02:00
..
abstract.h gh-92781: Avoid mixing declarations and code in C API (#92783) (#92813) 2022-05-16 13:19:52 +02:00
bytearrayobject.h gh-89653: PEP 670: Convert PyBytes macros to functions (#91990) 2022-05-03 20:14:58 +02:00
bytesobject.h [3.11] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) (GH-134341) 2025-06-02 17:52:52 +02:00
cellobject.h bpo-45476: Add _Py_RVALUE() macro (GH-29860) 2021-11-30 12:14:45 +01:00
ceval.h Revert "bpo-46850: Move _PyEval_EvalFrameDefault() to internal C API (GH-32052)" (GH-32343) 2022-04-06 13:58:07 +02:00
classobject.h bpo-35134: Move classobject.h to Include/cpython/ (GH-28968) 2021-10-15 09:46:29 +02:00
code.h gh-94936: C getters: co_varnames, co_cellvars, co_freevars (GH-95008) 2022-08-04 07:16:52 -07:00
compile.h bpo-46521: Fix codeop to use a new partial-input mode of the parser (GH-31010) 2022-02-08 11:54:37 +00:00
complexobject.h bpo-35134: Add Include/cpython/complexobject.h header (GH-32383) 2022-04-07 01:05:27 +02:00
context.h bpo-35134: Move classobject.h to Include/cpython/ (GH-28968) 2021-10-15 09:46:29 +02:00
descrobject.h bpo-45459: C API uses type names rather than structure names (GH-31528) 2022-02-24 17:51:59 +01:00
dictobject.h Revert "[3.11] GH-92678: Expose managed dict clear and visit functions (GH-95246). (#95256)" (#95647) 2022-08-04 13:03:07 +01:00
fileobject.h [3.11] gh-96670: Raise SyntaxError when parsing NULL bytes (GH-97594) (#104195) 2023-05-07 11:12:04 +01:00
fileutils.h bpo-46303: Move fileutils.h private functions to internal C API (GH-30484) 2022-01-11 11:56:16 +01:00
floatobject.h bpo-46906: Add PyFloat_Pack8() to the C API (GH-31657) 2022-03-12 00:10:02 +01:00
frameobject.h gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938) (#94000) 2022-06-20 15:47:41 +02:00
funcobject.h bpo-45316: Move private functions to internal C API (GH-31579) 2022-02-25 16:07:14 +01:00
genobject.h bpo-47045: Remove `f_state` field (GH-31963) 2022-03-22 12:57:19 +00:00
import.h [3.11] gh-93741: Add private C API _PyImport_GetModuleAttrString() (GH-93742) (GH-93792) 2022-06-14 08:51:39 +03:00
initconfig.h gh-57684: Add -P cmdline option and PYTHONSAFEPATH env var (#31542) 2022-05-06 01:34:11 +02:00
listobject.h gh-89653: PEP 670: Use PyObject* type for parameters (GH-92694) 2022-05-11 16:23:29 -07:00
longintrepr.h [3.11] gh-101037: Fix potential memory underallocation for zeros of int subtypes (GH-101038) (#101219) 2023-01-21 10:54:09 +00:00
longobject.h bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
methodobject.h gh-89653: PEP 670: Convert PyCFunction macros to functions (#92302) 2022-05-05 11:31:59 +02:00
modsupport.h [3.11] gh-86493: Fix possible leaks in some modules initialization (GH-106768) (GH-106855) (GH-106863) 2023-07-19 09:40:38 +03:00
object.h [3.11] Revert "[3.11] gh-98724: Fix Py_CLEAR() macro side effects (#99100)" (#99573) 2022-11-21 18:01:10 +01:00
objimpl.h bpo-40170: Remove _Py_GetAllocatedBlocks() function (GH-30940) 2022-01-27 03:35:51 +01:00
odictobject.h bpo-35134: Move non-limited C API files to Include/cpython/ (GH-24561) 2021-02-19 15:55:46 +01:00
picklebufobject.h bpo-35134: Move non-limited C API files to Include/cpython/ (GH-24561) 2021-02-19 15:55:46 +01:00
pthread_stubs.h [3.11] gh-95174: Add pthread stubs for WASI (GH-95234) (#95503) 2022-08-01 15:37:45 +01:00
pyctype.h bpo-43816: Add extern "C" to Include/cpython/pyctype.h (GH-25365) 2021-04-13 13:27:21 +02:00
pydebug.h bpo-45434: Convert Py_GETENV() macro to a function (GH-28912) 2021-10-13 03:39:50 +02:00
pyerrors.h gh-89770: Implement PEP-678 - Exception notes (GH-31317) 2022-04-16 19:59:52 +01:00
pyfpe.h bpo-35134: Move non-limited C API files to Include/cpython/ (GH-24561) 2021-02-19 15:55:46 +01:00
pyframe.h gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938) (#94000) 2022-06-20 15:47:41 +02:00
pylifecycle.h bpo-43795: Remove Py_FrozenMain from the Limited API & Stable ABI (GH-26241) 2021-05-25 04:42:03 -07:00
pymem.h bpo-43795: PEP-652: Clean up the stable ABI/limited API (GH-25482) 2021-04-23 14:17:58 +02:00
pystate.h GH-91719: Make MSVC generate somewhat faster switch code (#91718) 2022-04-21 11:53:57 -07:00
pythonrun.h bpo-43868: Remove PyOS_ReadlineFunctionPointer from the stable ABI list (GH-25442) 2021-04-23 14:23:38 +02:00
pythread.h [3.11] gh-95174: Add pthread stubs for WASI (GH-95234) (#95503) 2022-08-01 15:37:45 +01:00
pytime.h Fix typos in the Include directory (GH-28745) 2021-10-06 11:32:38 -07:00
setobject.h bpo-35134: Add Include/cpython/setobject.h header (GH-32384) 2022-04-07 01:26:24 +02:00
sysmodule.h bpo-46987: Remove _PySys_GetObjectId / _PySys_GetObjectId (GH-31835) 2022-03-14 21:48:00 +09:00
traceback.h bpo-45459: C API uses type names rather than structure names (GH-31528) 2022-02-24 17:51:59 +01:00
tupleobject.h gh-89653: PEP 670: Use PyObject* type for parameters (GH-92694) 2022-05-11 16:23:29 -07:00
unicodeobject.h [3.11] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) (GH-134341) 2025-06-02 17:52:52 +02:00
warnings.h bpo-35134: Split warnings.h and weakrefobject.h (GH-29042) 2021-10-19 01:31:57 +02:00
weakrefobject.h gh-92781: Avoid mixing declarations and code in C API (#92783) (#92813) 2022-05-16 13:19:52 +02:00