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cpython/Parser
Miss Islington (bot) 69b4387f78 [3.14] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133942)
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)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2025-05-13 16:25:08 +03:00
..
2025-05-04 23:46:21 +00:00
2025-04-30 11:46:41 +02:00
2025-04-30 11:46:41 +02:00