gh-133009: fix UAF in `xml.etree.ElementTree.Element.deepcopy`#133010

Merged

picnixz merged 8 commits intopython:mainfrom

picnixz:fix/xml/uaf-deepcopy-133009

May 10, 2025

Commits on Apr 26, 2025

fix UAF in `xml.etree.ElementTree.Element.__deepcopy__`
picnixz
committed

Commits on Apr 27, 2025

Commits on Apr 28, 2025

use `Py_CLEAR` to be on the safe side
picnixz
authored

Commits on May 6, 2025

avoid killing deepcopy() optimization
picnixz
committed

Commits on May 9, 2025