[New-bugs-announce] [issue36790] test_asyncio fails with application verifier!

[Alexander Riccio]

New submission from Alexander Riccio <test35965 at gmail.com>:

I compiled PCBuild Debug x64 from an updated clone of upstream, and when running the testsuite under Application Verifier with handle verification, the test triggers an invalid handle access by passing an invalid overlapped handle to CancelIoEx with this code: Py_CancelIoEx(self->handle, &self->overlapped) (where self->handle appears to be the offending variable).

I have no idea who's calling _overlapped.cancel, and a quick spelunking through the codebase only confuses me more.

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components: Tests
files: python_test_invalid_handle_failure.TXT
messages: 341365
nosy: Alexander Riccio
priority: normal
severity: normal
status: open
title: test_asyncio fails with application verifier!
versions: Python 3.8
Added file: https://bugs.python.org/file48298/python_test_invalid_handle_failure.TXT

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36790>
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