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[3.14] gh-134679: Fix assertion failure in QSBR (gh-134811)#134814

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Merged

colesbury merged 1 commit intopython:3.14frommiss-islington:backport-a4d37f8-3.14

May 27, 2025

Merged

[3.14] gh-134679: Fix assertion failure in QSBR (gh-134811)#134814

colesbury merged 1 commit intopython:3.14frommiss-islington:backport-a4d37f8-3.14

May 27, 2025

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miss-islington commentedMay 27, 2025•
edited by bedevere-appbot
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This is the same underlying bug asgh-130519. The destructor may call
arbitrary code, changing thetstate->qsbr pointer and invalidating the
oldstruct _qsbr_thread_state.
(cherry picked from commita4d37f8)

Co-authored-by: Sam Grosscolesbury@gmail.com

Issue:Assertion failed: Python/qsbr.c in _Py_qsbr_poll #134679

pythongh-134679: Fix assertion failure in QSBR (pythongh-134811)

54d8748

This is the same underlying bug aspythongh-130519. The destructor may callarbitrary code, changing the `tstate->qsbr pointer` and invalidating theold `struct _qsbr_thread_state`.(cherry picked from commita4d37f8)Co-authored-by: Sam Gross <colesbury@gmail.com>