Serhiy Storchaka ab9893c406 [3.10] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) (GH-134345) ...

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)
(cherry picked from commit 0c33e5baed)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

2025-06-02 17:55:48 +02:00

..

asdl_c.py

bpo-11105: Do not crash when compiling recursive ASTs (GH-20594)

2021-06-03 13:27:00 -07:00

asdl.py

bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25142)

2021-04-02 12:53:46 +09:00

myreadline.c

bpo-30555: Fix WindowsConsoleIO fails in the presence of fd redirection (GH-1927)

2021-04-23 23:00:27 +01:00

parser.c

[3.10] gh-102416: Do not memoize incorrectly loop rules in the parser (GH-102467). (#102474)

2023-03-06 16:59:16 +00:00

peg_api.c

bpo-43244: Remove parser_interface.h header file (GH-25001)

2021-03-24 01:29:09 +01:00

pegen.c

[3.10] GH-102711: Fix warnings found by clang (GH-102712) (#103076)

2023-03-28 11:27:41 +02:00

pegen.h

[3.10] Backport bpo-47212 (GH-32302) to Python 3.10 (GH-32334)

2022-04-05 09:21:49 -07:00

Python.asdl

bpo-46289: Make conversion of FormattedValue not optional on ASDL (GH-30467)

2022-01-07 14:30:18 -08:00

string_parser.c

[3.10] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) (GH-134345)

2025-06-02 17:55:48 +02:00

string_parser.h

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

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

token.c

bpo-43822: Improve syntax errors for missing commas (GH-25377)

2021-04-15 21:38:45 +01:00

tokenizer.c

[3.10] gh-99581: Fix a buffer overflow in the tokenizer when copying lines that fill the available buffer (GH-99605). (#99630)

2022-11-20 22:30:15 +00:00

tokenizer.h

[3.10] Ensure the str member of the tokenizer is always initialised (GH-29681). (GH-29683)

2021-11-21 04:15:22 +00:00