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Deadlock when using SSLContext._msg_callback and SSLContext.sni_callback #87743

@theandrew168

Description

@theandrew168
BPO 43577
Nosy @tiran, @miss-islington, @theandrew168
PRs
  • bpo-43577: Fix deadlock with SSLContext._msg_callback and sni_callback (GH-24957) #24957
  • [3.9] bpo-43577: Fix deadlock with SSLContext._msg_callback and sni_callback (GH-24957) #24958
  • [3.8] bpo-43577: Fix deadlock with SSLContext._msg_callback and sni_callback (GH-24957) #24959
  • Files
  • deadlock.zip: Deadlock reproduction and backtrace
  • 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 = 'https://github.com/tiran'
    closed_at = <Date 2021-03-21.16:03:49.009>
    created_at = <Date 2021-03-21.05:00:42.206>
    labels = ['expert-SSL', 'type-bug', '3.8', '3.9', '3.10']
    title = 'Deadlock when using SSLContext._msg_callback and SSLContext.sni_callback'
    updated_at = <Date 2021-03-21.16:03:49.008>
    user = 'https://github.com/theandrew168'

    bugs.python.org fields:

    activity = <Date 2021-03-21.16:03:49.008>
    actor = 'christian.heimes'
    assignee = 'christian.heimes'
    closed = True
    closed_date = <Date 2021-03-21.16:03:49.009>
    closer = 'christian.heimes'
    components = ['SSL']
    creation = <Date 2021-03-21.05:00:42.206>
    creator = 'theandrew168'
    dependencies = []
    files = ['49897']
    hgrepos = []
    issue_num = 43577
    keywords = ['patch']
    message_count = 8.0
    messages = ['389216', '389222', '389229', '389232', '389234', '389235', '389238', '389240']
    nosy_count = 3.0
    nosy_names = ['christian.heimes', 'miss-islington', 'theandrew168']
    pr_nums = ['24957', '24958', '24959']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue43577'
    versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']

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    3.10only security fixes3.8 (EOL)end of life3.9 (EOL)end of lifetopic-SSLtype-bugAn unexpected behavior, bug, or error

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