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bpo-25750: fix refcounts in type_getattro() (GH-6118)

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When calling tp_descr_get(self, obj, type), make sure that
we own a strong reference to "self".
(cherry picked from commit 8f735485ac)

Co-authored-by: jdemeyer <jdemeyer@cage.ugent.be>
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Miss Islington (bot) 2018-09-07 00:50:35 -07:00 • committed by GitHub
parent 2d3f2dc9f8
commit f862f3abae
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2 changed files with 13 additions and 6 deletions
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Misc/NEWS.d/next/Core and Builtins/2018-03-14-21-42-17.bpo-25750.lxgkQz.rst Normal file
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Fix rare Python crash due to bad refcounting in ``type_getattro()`` if a
descriptor deletes itself from the class. Patch by Jeroen Demeyer.