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Title: Frame teardown can create frame objects · Issue #99729 · python/cpython · GitHub

Open Graph Title: Frame teardown can create frame objects · Issue #99729 · python/cpython

X Title: Frame teardown can create frame objects · Issue #99729 · python/cpython

Description: Crash report using https://github.com/graingert/segfault-repro running pytest yields a segfault in about 1 in 3 runs ========================================================================================================================...

Open Graph Description: Crash report using https://github.com/graingert/segfault-repro running pytest yields a segfault in about 1 in 3 runs ================================================================================...

X Description: Crash report using https://github.com/graingert/segfault-repro running pytest yields a segfault in about 1 in 3 runs ================================================================================...

Opengraph URL: https://github.com/python/cpython/issues/99729

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Hey, it has json ld scripts:
{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Frame teardown can create frame objects","articleBody":"\u003c!--\r\n  Use this template for hard crashes of the interpreter, segmentation faults, failed C-level assertions, and similar.\r\n  Do not submit this form if you encounter an exception being unexpectedly raised from a Python function.\r\n  Most of the time, these should be filed as bugs, rather than crashes.\r\n\r\n  The CPython interpreter is itself written in a different programming language, C.\r\n  For CPython, a \"crash\" is when Python itself fails, leading to a traceback in the C stack.\r\n--\u003e\r\n\r\n# Crash report\r\n\r\nusing https://github.com/graingert/segfault-repro running `pytest` yields a segfault in about 1 in 3 runs\r\n```\r\n================================================================================================================================== test session starts ===================================================================================================================================\r\nplatform linux -- Python 3.11.0, pytest-7.2.0, pluggy-1.0.0\r\nrootdir: /home/graingert/projects/segfault-repro, configfile: pyproject.toml\r\ncollected 1 item                                                                                                                                                                                                                                                                         \r\n\r\ntest_ssltransport.py Fatal Python error: Segmentation fault\r\n\r\nCurrent thread 0x00007f874b2df000 (most recent call first):\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/unraisableexception.py\", line 43 in _hook\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/python.py\", line 195 in pytest_pyfunc_call\r\n  File 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\"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_manager.py\", line 80 in _hookexec\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_hooks.py\", line 265 in __call__\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/main.py\", line 349 in pytest_runtestloop\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_callers.py\", line 39 in _multicall\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_manager.py\", line 80 in _hookexec\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_hooks.py\", line 265 in __call__\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/main.py\", line 324 in _main\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/main.py\", line 270 in wrap_session\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/main.py\", line 317 in pytest_cmdline_main\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_callers.py\", line 39 in _multicall\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_manager.py\", line 80 in _hookexec\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/pluggy/_hooks.py\", line 265 in __call__\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/config/__init__.py\", line 167 in main\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/lib/python3.11/site-packages/_pytest/config/__init__.py\", line 190 in console_main\r\n  File \"/home/graingert/.virtualenvs/segfault-repro/bin/pytest\", line 8 in \u003cmodule\u003e\r\n[1]    50315 segmentation fault (core dumped)  pytest\r\n```\r\n\r\n# Error messages\r\n\r\nEnter any relevant error message caused by the crash, including a core dump if there is one.\r\n\r\n# Your environment\r\n\r\n\u003c!-- Include as many relevant details as possible about the environment you experienced the bug in --\u003e\r\n\r\n- CPython versions tested on: `Python 3.11.0 (main, Oct 24 2022, 19:56:13) [GCC 11.2.0] on linux`\r\n- Operating system and architecture: `5.15.0-53-generic #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux`\r\n\r\n\u003c!--\r\nYou can freely edit this text. Remove any lines you believe are unnecessary.\r\n--\u003e\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-100030\n* gh-100047\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/graingert","@type":"Person","name":"graingert"},"datePublished":"2022-11-23T16:12:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":34},"url":"https://github.com/99729/cpython/issues/99729"}

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Frame teardown can create frame objectshttps://github.com/python/cpython/issues/99729#top
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3.11only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.11%22
3.12only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.12%22
type-crashA hard crash of the interpreter, possibly with a core dumphttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22type-crash%22
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on Nov 23, 2022https://github.com/python/cpython/issues/99729#issue-1462034360
https://github.com/graingert/segfault-reprohttps://github.com/graingert/segfault-repro
GH-99729: Unlink frames before clearing them #100030https://github.com/python/cpython/pull/100030
[3.11] GH-99729: Unlink frames before clearing them #100047https://github.com/python/cpython/pull/100047
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