[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[miss-islington]

miss-islington  added the comment:


New changeset 1b21b55ee0ea57226c52dc9f3ee3c034a5d1dc7b by Miss Islington (bot) 
in branch '3.10':
bpo-23691: Protect the re.finditer() iterator from re-entering (GH-32012)
https://github.com/python/cpython/commit/1b21b55ee0ea57226c52dc9f3ee3c034a5d1dc7b


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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[miss-islington]

miss-islington  added the comment:


New changeset f89949ec6741bd02841bece61f5b703e738dd13c by Miss Islington (bot) 
in branch '3.9':
bpo-23691: Protect the re.finditer() iterator from re-entering (GH-32012)
https://github.com/python/cpython/commit/f89949ec6741bd02841bece61f5b703e738dd13c


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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[miss-islington]

Change by miss-islington :


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pull_requests: +30115
pull_request: https://github.com/python/cpython/pull/32026

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[miss-islington]

Change by miss-islington :


--
nosy: +miss-islington
nosy_count: 4.0 -> 5.0
pull_requests: +30114
pull_request: https://github.com/python/cpython/pull/32025

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset 08eb754d840696914928355014c2d424131f8835 by Serhiy Storchaka in 
branch 'main':
bpo-23691: Protect the re.finditer() iterator from re-entering (GH-32012)
https://github.com/python/cpython/commit/08eb754d840696914928355014c2d424131f8835


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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
versions: +Python 3.10, Python 3.11, Python 3.9 -Python 2.7, Python 3.6, Python 
3.7

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
keywords: +patch
pull_requests: +30100
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/32012

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
assignee:  -> serhiy.storchaka
nosy: +serhiy.storchaka
stage:  -> needs patch
versions: +Python 2.7, Python 3.6, Python 3.7 -Python 3.4

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[issue23691] re.finditer iterator is not reentrant, but doesn't protect against nested calls to __next__

[Evgeny Kapun]

New submission from Evgeny Kapun:

Iterator returned by re.finditer includes a SRE_STATE value, which is not 
designed to be used concurrently. However, it is possible to call __next__ on 
such iterator while another such call is in progress, e.g. from a signal 
handler. This may result in corruption of SRE_STATE structure.

--
components: Regular Expressions
messages: 238323
nosy: abacabadabacaba, ezio.melotti, mrabarnett
priority: normal
severity: normal
status: open
title: re.finditer iterator is not reentrant, but doesn't protect against 
nested calls to __next__
type: crash
versions: Python 3.4

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