[proxy] bugs.python.org — ← back | site home | direct (HTTPS) ↗ | proxy home | ◑ dark◐ light

Issue 39453: Use-after-free in list contain

Issue39453

classification

Title:	Use-after-free in list contain
Type:	crash	Stage:	resolved
Components:		Versions:	Python 3.9, Python 3.8, Python 3.7

process

Status:	closed	Resolution:	fixed
Dependencies:		Superseder:
Assigned To:	corona10	Nosy List:	corona10, miss-islington, pablogsal, vstinner
Priority:	normal	Keywords:	patch

Created on 2020-01-25 14:22 by corona10, last changed 2022-04-11 14:59 by admin. This issue is now closed.

Pull Requests
URL	Status	Linked	Edit
PR 18181	merged	corona10, 2020-01-25 14:53
PR 18202	merged	corona10, 2020-01-27 16:28
PR 18204	merged	corona10, 2020-01-27 16:43
PR 18205	closed	corona10, 2020-01-27 16:49
PR 18206	closed	corona10, 2020-01-27 17:13
PR 18535	merged	miss-islington, 2020-02-17 09:14

Messages (7)
msg360686 - (view)	Author: Dong-hee Na (corona10) *	Date: 2020-01-25 14:22
class poc() : def __eq__(self,other) : l.clear() return NotImplemented l = [poc(), poc(), poc()] 3 in l [1] 2606 segmentation fault sigh..
msg360687 - (view)	Author: Dong-hee Na (corona10) *	Date: 2020-01-25 14:22
I will send a patch ASAP.
msg360769 - (view)	Author: Pablo Galindo Salgado (pablogsal) *	Date: 2020-01-27 15:02
New changeset 4dbf2d8c6789a9b7299b142033073213604b8fdc by Pablo Galindo (Dong-hee Na) in branch 'master': bpo-39453: Make list.__contains__ hold strong references to avoid crashes (GH-18181) https://github.com/python/cpython/commit/4dbf2d8c6789a9b7299b142033073213604b8fdc
msg360780 - (view)	Author: miss-islington (miss-islington)	Date: 2020-01-27 17:04
New changeset 9e1ed518a576897f914227bf538bac426a02a081 by Miss Islington (bot) (Dong-hee Na) in branch 'master': bpo-39453: Add testcase for bpo-39453 (GH-18202) https://github.com/python/cpython/commit/9e1ed518a576897f914227bf538bac426a02a081
msg362125 - (view)	Author: STINNER Victor (vstinner) *	Date: 2020-02-17 09:13
New changeset f64abd10563c25a94011f9e3335fd8a1cf47c205 by Dong-hee Na in branch '3.8': [3.8] bpo-39453: Fix contains method of list to hold strong references (GH-18204) https://github.com/python/cpython/commit/f64abd10563c25a94011f9e3335fd8a1cf47c205
msg362128 - (view)	Author: miss-islington (miss-islington)	Date: 2020-02-17 09:30
New changeset 3c57ca699910be74e7cf67d747b24bbc486932f1 by Miss Islington (bot) in branch '3.7': [3.8] bpo-39453: Fix contains method of list to hold strong references (GH-18204) https://github.com/python/cpython/commit/3c57ca699910be74e7cf67d747b24bbc486932f1
msg362129 - (view)	Author: STINNER Victor (vstinner) *	Date: 2020-02-17 09:37
Thanks Dong-hee Na for the fix.

History
Date	User	Action	Args
2022-04-11 14:59:25	admin	set	github: 83634
2020-02-17 09:37:52	vstinner	set	status: open -> closed versions: + Python 3.7, Python 3.8 messages: + msg362129 resolution: fixed stage: patch review -> resolved
2020-02-17 09:30:48	miss-islington	set	messages: + msg362128
2020-02-17 09:14:05	miss-islington	set	pull_requests: + pull_request17911
2020-02-17 09:13:56	vstinner	set	messages: + msg362125
2020-01-27 17:13:34	corona10	set	pull_requests: + pull_request17583
2020-01-27 17:04:32	miss-islington	set	nosy: + miss-islington messages: + msg360780
2020-01-27 16:49:40	corona10	set	pull_requests: + pull_request17582
2020-01-27 16:43:19	corona10	set	pull_requests: + pull_request17581
2020-01-27 16:28:35	corona10	set	pull_requests: + pull_request17579
2020-01-27 15:02:27	pablogsal	set	messages: + msg360769
2020-01-25 14:53:27	corona10	set	keywords: + patch stage: patch review pull_requests: + pull_request17567
2020-01-25 14:22:50	corona10	set	messages: + msg360687
2020-01-25 14:22:26	corona10	create