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 9f69a58623bd01349a18ba0c7a9cb1dad6a51e8e)
(cherry picked from commit 6279eb8c076d89d3739a6edb393e43c7929b429d)
(cherry picked from commit a75953b347716fff694aa59a7c7c2489fa50d1f5)

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

2025-06-02 17:52:52 +02:00

..

action_helpers.c

bpo-47212: Improve error messages for un-parenthesized generator expressions (GH-32302)

2022-04-05 14:47:13 +01:00

asdl_c.py

[3.11] gh-106905: Use separate structs to track recursion depth in each PyAST_mod2obj call. (GH-113035) (GH-113472) (GH-113476)

2023-12-25 20:40:33 +00:00

asdl.py

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

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

myreadline.c

bpo-45434: Move _Py_BEGIN_SUPPRESS_IPH to pycore_fileutils.h (GH-28922)

2021-10-13 15:03:35 +02:00

parser.c

[3.11] gh-109120: Fix syntax error in handlinh of incorrect star expressions… (#117464)

2024-04-03 11:37:39 +01:00

peg_api.c

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

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

pegen_errors.c

[3.11] gh-115823: Calculate correctly error locations when dealing with implicit encodings (GH-115824) (#115950)

2024-02-26 16:08:37 +00:00

pegen.c

[3.11] bpo-43950: handle wide unicode characters in tracebacks (GH-28150) (#111373)

2023-10-27 09:46:20 +09:00

pegen.h

[3.11] bpo-43950: handle wide unicode characters in tracebacks (GH-28150) (#111373)

2023-10-27 09:46:20 +09:00

Python.asdl

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

2022-01-07 13:05:28 -08:00

string_parser.c

[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

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

[3.11] gh-107450: Check for overflow in the tokenizer and fix overflow test (GH-110832) (#110939)

2023-10-18 00:34:56 +02:00

tokenizer.h

[3.11] Fix typo in the tokenizer (GH-104950) (#104952)

2023-05-25 23:32:04 -07:00