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Created on 2018-08-20 13:41 by izbyshev, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 8835 | merged | izbyshev, 2018-08-20 14:05 | |
| PR 8840 | merged | miss-islington, 2018-08-20 20:04 | |
| Messages (3) | |||
|---|---|---|---|
| msg323789 - (view) | Author: Alexey Izbyshev (izbyshev) *  |
Date: 2018-08-20 13:41 | |
>>> from abc import ABCMeta >>> class S(metaclass=ABCMeta): ... __subclasses__ = None ... >>> issubclass(int, S) Segmentation fault (core dumped) This is the result of missing NULL check for 'subclasses' in _abc__abc_subclasscheck_impl (Modules/_abc.c): /* 6. Check if it's a subclass of a subclass (recursive). */ subclasses = PyObject_CallMethod(self, "__subclasses__", NULL); if (!PyList_Check(subclasses)) { PyErr_SetString(PyExc_TypeError, "__subclasses__() must return a list"); goto end; } Reported by Svace static analyzer. |
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| msg323810 - (view) | Author: Berker Peksag (berker.peksag) *  |
Date: 2018-08-20 20:04 | |
New changeset cdbf50cba1664f72ae6621a89c324a32fea70377 by Berker Peksag (Alexey Izbyshev) in branch 'master': bpo-34441: Fix ABC.__subclasscheck__ crash on classes with invalid __subclasses__ (GH-8835) https://github.com/python/cpython/commit/cdbf50cba1664f72ae6621a89c324a32fea70377 |
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| msg323811 - (view) | Author: miss-islington (miss-islington) | Date: 2018-08-20 20:42 | |
New changeset d1f0ccc7e65ef7abeab779f5d0aca2f18eb9b2a4 by Miss Islington (bot) in branch '3.7': bpo-34441: Fix ABC.__subclasscheck__ crash on classes with invalid __subclasses__ (GH-8835) https://github.com/python/cpython/commit/d1f0ccc7e65ef7abeab779f5d0aca2f18eb9b2a4 |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:04 | admin | set | github: 78622 |
| 2018-08-20 20:47:06 | izbyshev | set | status: open -> closed resolution: fixed stage: patch review -> resolved |
| 2018-08-20 20:42:23 | miss-islington | set | nosy:
+ miss-islington messages: + msg323811 |
| 2018-08-20 20:04:40 | miss-islington | set | pull_requests: + pull_request8314 |
| 2018-08-20 20:04:23 | berker.peksag | set | nosy:
+ berker.peksag messages: + msg323810 |
| 2018-08-20 14:05:21 | izbyshev | set | keywords:
+ patch stage: patch review pull_requests: + pull_request8310 |
| 2018-08-20 13:41:11 | izbyshev | create | |