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gh-151633: avoid use-after-free in Counter.update#151634

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gh-151633: avoid use-after-free in Counter.update#151634
KowalskiThomas wants to merge 5 commits into
python:mainfrom
KowalskiThomas:kowalski/fix-avoid-use-after-free-in-counter-update

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@KowalskiThomas KowalskiThomas commented Jun 18, 2026

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Comment thread Modules/_collectionsmodule.c Outdated
Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
@KowalskiThomas KowalskiThomas marked this pull request as ready for review June 18, 2026 12:56
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Concurrent calls to Counter.update can cause a use after free

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