PyGILStateEnsure() (Probably) Crashes If Called After Finalization
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3.12
3.13
3.14
topic-C-API
type-bug
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 35.9k
- PR merge metrics
- PR metrics pending
Description
Bug report
Bug description:
I'm pretty sure PyGILState_Ensure() will crash if called after finalization, particularly in the case where the thread doesn't already have a thread state active. I noticed this while looking at the function for something else.
CC @gpshead
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Contributor guide
First steps
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at PyGILState_Ensure() and trace its behavior when called after finalization, especially from a thread without an active thread state. Reproduce the reported crash on CPython main and add or update coverage for the post-finalization call; done means the behavior is defined and no longer crashes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- api, backend-api-design
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 42/100