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crash if asyncio is used before and after re-initialization if using python embedded in an application #89425

@benjamin-sch

Description

@benjamin-sch
BPO 45262
Nosy @vstinner, @asvetlov, @1st1, @miss-islington, @HiassofT
PRs
  • bpo-45262: Prevent use-after-free in asyncio #28796
  • [3.9] bpo-45262, asyncio: Fix cache of the running loop holder (GH-28796) #28815
  • [3.10] bpo-45262, asyncio: Fix cache of the running loop holder (GH-28796) #28816
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = None
    created_at = <Date 2021-09-22.08:32:26.699>
    labels = ['3.9', 'type-crash', 'expert-asyncio']
    title = 'crash if asyncio is used before and after re-initialization if using python embedded in an application'
    updated_at = <Date 2021-10-08.08:55:45.466>
    user = 'https://bugs.python.org/benjamin-sch'

    bugs.python.org fields:

    activity = <Date 2021-10-08.08:55:45.466>
    actor = 'vstinner'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['asyncio']
    creation = <Date 2021-09-22.08:32:26.699>
    creator = 'benjamin-sch'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 45262
    keywords = ['patch']
    message_count = 8.0
    messages = ['402412', '402469', '402905', '403407', '403445', '403448', '403462', '403463']
    nosy_count = 6.0
    nosy_names = ['vstinner', 'asvetlov', 'yselivanov', 'miss-islington', 'benjamin-sch', 'HiassofT']
    pr_nums = ['28796', '28815', '28816']
    priority = 'normal'
    resolution = None
    stage = 'patch review'
    status = 'open'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue45262'
    versions = ['Python 3.9']

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      3.9 (EOL)end of lifetopic-asynciotype-crashA hard crash of the interpreter, possibly with a core dump

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