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gh-143004: Fix possible use-after-free in collections.Counter.update() (GH-143044)
authorkaushal trivedi <155625932+Kaushalt2004@users.noreply.github.com>
Thu, 25 Dec 2025 09:13:39 +0000 (14:43 +0530)
committerGitHub <noreply@github.com>
Thu, 25 Dec 2025 09:13:39 +0000 (09:13 +0000)
commit86d904588e8c84c7fccb8faf84b343f03461970d
treee3f5150079999805ce4181f8e3067d1670dfb14dtree | snapshot
parentcf6758ff9ebd6df8ac2a87755cdbad674c49c9cbcommit | diff
gh-143004: Fix possible use-after-free in collections.Counter.update() (GH-143044)

This happened when the Counter was mutated when incrementing
the value for an existing key.
Lib/test/test_collections.py diff | blob | blame | history
Misc/NEWS.d/next/Library/2025-12-22-00-00-00.gh-issue-143004.uaf-counter.rst [new file with mode: 0644] blob
Modules/_collectionsmodule.c diff | blob | blame | history
Mirror of https://github.com/python/cpython.git