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GeezerVison is showing github.com — [3.15] gh-154189: Fix use-after-free in `functools.partial_vectorcall` (GH-154508) by miss-islington · Pull Request #154652 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Jul 24, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit 1a742d4)

Co-authored-by: Brij Kapadia [email protected]

  • Issue: use-after-free: functools partial #154189

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@brijkapadia @miss-islington
pythongh-154189: Fix use-after-free in functools.partial_vectorcall (…
3604bf5 
…pythonGH-154508)

(cherry picked from commit 1a742d4)

Co-authored-by: Brij Kapadia <[email protected]>
@miss-islington
miss-islington requested a review from rhettinger as a code owner July 24, 2026 21:32
This was referenced Jul 24, 2026
use-after-free: functools partial #154189
Closed
gh-154189: Fix use-after-free in functools.partial_vectorcall #154508
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@bedevere-app bedevere-app Bot added the awaiting review label Jul 24, 2026
@encukou
encukou merged commit 6246342 into python:3.15 Jul 27, 2026
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@bedevere-app bedevere-app Bot removed the awaiting review label Jul 27, 2026
@miss-islington
miss-islington deleted the backport-1a742d4-3.15 branch July 27, 2026 14:59
@mattsta mattsta mentioned this pull request Oct 10, 2026
Free-threaded 3.15: a functools.partial shared between threads no longer scales (it slows down as you add threads) #159157
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@rhettinger rhettinger Awaiting requested review from rhettinger rhettinger is a code owner

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3 participants

@miss-islington @encukou @brijkapadia
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