Crash report

What happened?

When using .decode("unicode_escape") with an error handler there is a use-after-free segfault.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Output from running 'python -VV' on the command line:

No response

Linked PRs

• gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler #129648