[3.13] gh-126037: fix UAF in xml.etree.ElementTree.Element.find* when current mutations happen (#127964)
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…n concurrent mutations happen (python#127964) We fix a use-after-free in the `find`, `findtext` and `findall` methods of `xml.etree.ElementTree.Element` objects that can be triggered when the tag to find implements an `__eq__` method that mutates the element being queried.
picnixz
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bp-313/c57623c221d46daeaedfbf2b32d041fde0c882de/xml-evil-find-126037
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We fix a use-after-free in the
find,findtextandfindallmethods ofxml.etree.ElementTree.Elementobjects that can be triggered when the tag to find implements an__eq__method that mutates the element being queried.(cherry picked from commit c57623c)
xml.etree.ElementTree.Element.find*when concurrent mutations happen #126037