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Created on 2021-07-23 05:05 by xxm, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| test.py | xxm, 2021-07-23 05:05 | |||
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 27316 | merged | Dennis Sweeney, 2021-07-24 02:14 | |
| PR 27324 | merged | miss-islington, 2021-07-24 09:17 | |
| PR 27325 | merged | miss-islington, 2021-07-24 09:17 | |
| Messages (6) | |||
|---|---|---|---|
| msg398029 - (view) | Author: Xinmeng Xia (xxm) | Date: 2021-07-23 05:05 | |
This piece of code is originally from https://github.com/python/cpython/tree/main/Lib/test/test_weakref.py. In function test_proxy_iter(), we change the original data dependency and then this generated test case (see the following "test.py") crashes Python. Crashing Python version: 3.6-master(3.11.0a0) test.py ========================= import weakref def test_proxy_iter(): obj = None class MyObj: def __iter__(a): nonlocal obj del obj - return NotImplemented + return p obj = MyObj() - p = weakref.proxy(obj) + p = weakref.proxy(TypeError) - 'blech' in p + 'blech' in obj test_proxy_iter() =========================== system: ubuntu 16.04 crash: segmentation fault |
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| msg398114 - (view) | Author: Dennis Sweeney (Dennis Sweeney) *  |
Date: 2021-07-24 02:21 | |
Here's a simpler reproducer:
not_an_iterator = lambda: 0
class A:
def __iter__(self):
return weakref.proxy(not_an_iterator)
a = A()
list(a)
I opened a PR.
|
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| msg398127 - (view) | Author: Łukasz Langa (lukasz.langa) * |
Date: 2021-07-24 09:17 | |
New changeset 5370f0a82aaa4ba617070d5c71d2b18236096ac0 by Dennis Sweeney in branch 'main': bpo-44720: Don't crash when calling weakref.proxy(not_an_iterator).__next__ (GH-27316) https://github.com/python/cpython/commit/5370f0a82aaa4ba617070d5c71d2b18236096ac0 |
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| msg398131 - (view) | Author: Łukasz Langa (lukasz.langa) * |
Date: 2021-07-24 09:45 | |
New changeset 659030c7d56a329c1aa559678f2df15e306215e4 by Miss Islington (bot) in branch '3.10': bpo-44720: Don't crash when calling weakref.proxy(not_an_iterator).__next__ (GH-27316) (GH-27324) https://github.com/python/cpython/commit/659030c7d56a329c1aa559678f2df15e306215e4 |
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| msg398132 - (view) | Author: Łukasz Langa (lukasz.langa) * |
Date: 2021-07-24 09:45 | |
New changeset 0a08f22184aef6e36bb8bb7ad84207e47594f46e by Miss Islington (bot) in branch '3.9': bpo-44720: Don't crash when calling weakref.proxy(not_an_iterator).__next__ (GH-27316) (#27325) https://github.com/python/cpython/commit/0a08f22184aef6e36bb8bb7ad84207e47594f46e |
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| msg398133 - (view) | Author: Łukasz Langa (lukasz.langa) * |
Date: 2021-07-24 09:46 | |
Thanks for your quick pull request, Dennis! ✨ 🍰 ✨ |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:47 | admin | set | github: 88883 |
| 2021-07-24 09:46:50 | lukasz.langa | set | status: open -> closed resolution: fixed messages: + msg398133 stage: patch review -> resolved |
| 2021-07-24 09:45:43 | lukasz.langa | set | messages: + msg398132 |
| 2021-07-24 09:45:17 | lukasz.langa | set | messages: + msg398131 |
| 2021-07-24 09:17:33 | miss-islington | set | pull_requests: + pull_request25869 |
| 2021-07-24 09:17:28 | miss-islington | set | nosy:
+ miss-islington pull_requests: + pull_request25868 |
| 2021-07-24 09:17:23 | lukasz.langa | set | nosy:
+ lukasz.langa messages: + msg398127 |
| 2021-07-24 02:21:45 | Dennis Sweeney | set | messages:
+ msg398114 title: Finding string in iteratively deleted object cause segfault -> Weakref proxy crashes on null tp_iternext slot. |
| 2021-07-24 02:14:24 | Dennis Sweeney | set | keywords:
+ patch nosy: + Dennis Sweeney pull_requests: + pull_request25862 stage: patch review |
| 2021-07-23 05:05:41 | xxm | create | |