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segfault due to null pointer in tuple #70998

@random832

Description

@random832
mannequin
BPO 26811
Nosy @brettcannon, @rhettinger, @ncoghlan, @vstinner, @larryhastings, @ericsnowcurrently, @serhiy-storchaka, @zhangyangyu
PRs
  • bpo-30156: Fix a crash in debug build when PYTHONDUMPREFS is set. #1272
  • Files
  • fnt.py: Script to find the bad tuple and try to access it
  • property_descr_get_gc_untrack.patch
  • property_cached_args_set_size_0.patch
  • property_descr_get_gc_untrack_2.patch
  • 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/serhiy-storchaka'
    closed_at = <Date 2016-05-05.13:22:36.740>
    created_at = <Date 2016-04-21.00:20:15.665>
    labels = ['interpreter-core', 'type-crash']
    title = 'segfault due to null pointer in tuple'
    updated_at = <Date 2017-04-24.18:46:48.431>
    user = 'https://bugs.python.org/random832'

    bugs.python.org fields:

    activity = <Date 2017-04-24.18:46:48.431>
    actor = 'serhiy.storchaka'
    assignee = 'serhiy.storchaka'
    closed = True
    closed_date = <Date 2016-05-05.13:22:36.740>
    closer = 'serhiy.storchaka'
    components = ['Interpreter Core']
    creation = <Date 2016-04-21.00:20:15.665>
    creator = 'random832'
    dependencies = []
    files = ['42545', '42546', '42547', '42577']
    hgrepos = []
    issue_num = 26811
    keywords = ['patch']
    message_count = 16.0
    messages = ['263866', '263882', '263885', '263886', '263887', '263888', '263889', '263892', '263893', '263894', '263895', '263900', '263903', '263904', '264060', '264846']
    nosy_count = 10.0
    nosy_names = ['brett.cannon', 'rhettinger', 'ncoghlan', 'vstinner', 'larry', 'python-dev', 'eric.snow', 'serhiy.storchaka', 'random832', 'xiang.zhang']
    pr_nums = ['1272']
    priority = 'high'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue26811'
    versions = ['Python 3.6']

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    interpreter-core(Objects, Python, Grammar, and Parser dirs)type-crashA hard crash of the interpreter, possibly with a core dump

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