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stack smash when using ctypes/libffi to access union #66367

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@weskerfoot

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@weskerfoot
mannequin
BPO 22171
Nosy @doko42, @amauryfa, @abalkin, @meadori, @seanmccully
Files
  • crash.log: Contents of C file declaring union and function returning initialized union as well as stack trace/memory map
  • crash.sh: shell script to reproduce stack overflow
  • 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 2014-08-08.04:53:59.136>
    labels = ['ctypes', 'type-crash']
    title = 'stack smash when using ctypes/libffi to access union'
    updated_at = <Date 2018-12-27.00:08:16.781>
    user = 'https://bugs.python.org/weskerfoot'

    bugs.python.org fields:

    activity = <Date 2018-12-27.00:08:16.781>
    actor = 'Sam.Kerr'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['ctypes']
    creation = <Date 2014-08-08.04:53:59.136>
    creator = 'wes.kerfoot'
    dependencies = []
    files = ['36308', '36320']
    hgrepos = []
    issue_num = 22171
    keywords = []
    message_count = 4.0
    messages = ['225059', '225089', '225234', '332568']
    nosy_count = 7.0
    nosy_names = ['doko', 'amaury.forgeotdarc', 'belopolsky', 'meador.inge', 'Sam.Kerr', 'seanmccully', 'wes.kerfoot']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue22171'
    versions = ['Python 2.7']

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      topic-ctypestype-crashA hard crash of the interpreter, possibly with a core dump

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