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GeezerVison is showing github.com — gh-155493: Fix crash in decimal SignalDict on re-entrant Context teardown by tonghuaroot · Pull Request #155494 · python/cpython

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@tonghuaroot

@tonghuaroot tonghuaroot commented Aug 10, 2026 •
edited by bedevere-app Bot
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signaldict_setitem and signaldict_richcompare read the borrowed flags
pointer after PyObject_IsTrue calls the value's __bool__, which can
deallocate the owning Context. gh-146011 added this guard to
signaldict_repr; this extends it to the two remaining methods that borrow
the pointer across a Python call.

  • Issue: decimal: crash when a re-entrant __bool__ deallocates the Context during Context.flags assignment or comparison #155493

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@tonghuaroot
pythongh-155493: Fix crash in decimal SignalDict on re-entrant Contex…
dcea95e 
…t teardown

signaldict_setitem and signaldict_richcompare read the borrowed flags
pointer after PyObject_IsTrue calls the value's __bool__, which can
deallocate the owning Context. pythongh-146011 added this guard to
signaldict_repr; this extends it to the two remaining methods.
@bedevere-app bedevere-app Bot mentioned this pull request Aug 10, 2026
decimal: crash when a re-entrant __bool__ deallocates the Context during Context.flags assignment or comparison #155493
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@bedevere-app bedevere-app Bot added the awaiting review label Aug 10, 2026
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github-actions Bot commented Nov 12, 2026

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This PR is stale because it has been open for 90 days with no activity.
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@github-actions github-actions Bot added the stale Stale PR or inactive for long period of time. label Nov 12, 2026
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@tonghuaroot
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