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Use after free during json encoding a dict (3) #68293

@pkt

Description

@pkt
mannequin
BPO 24105
Nosy @rhettinger, @pitrou, @benjaminp, @ezio-melotti, @serhiy-storchaka
Superseder
  • bpo-24094: Use after free during json encoding (PyType_IsSubtype)
  • Files
  • poc_enc_dict3.py
  • json_encode_mutated_dict.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 2015-05-03.14:34:31.595>
    created_at = <Date 2015-05-01.14:19:50.772>
    labels = ['extension-modules', 'type-crash']
    title = 'Use after free during json encoding a dict (3)'
    updated_at = <Date 2015-05-03.14:41:33.629>
    user = 'https://bugs.python.org/pkt'

    bugs.python.org fields:

    activity = <Date 2015-05-03.14:41:33.629>
    actor = 'serhiy.storchaka'
    assignee = 'serhiy.storchaka'
    closed = True
    closed_date = <Date 2015-05-03.14:34:31.595>
    closer = 'benjamin.peterson'
    components = ['Extension Modules']
    creation = <Date 2015-05-01.14:19:50.772>
    creator = 'pkt'
    dependencies = []
    files = ['39256', '39264']
    hgrepos = []
    issue_num = 24105
    keywords = ['patch']
    message_count = 8.0
    messages = ['242322', '242377', '242378', '242380', '242384', '242387', '242480', '242484']
    nosy_count = 7.0
    nosy_names = ['rhettinger', 'pitrou', 'benjamin.peterson', 'ezio.melotti', 'Arfrever', 'serhiy.storchaka', 'pkt']
    pr_nums = []
    priority = 'normal'
    resolution = 'duplicate'
    stage = 'patch review'
    status = 'closed'
    superseder = '24094'
    type = 'crash'
    url = 'https://bugs.python.org/issue24105'
    versions = ['Python 3.4', 'Python 3.5']

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    extension-modulesC modules in the Modules dirtype-crashA hard crash of the interpreter, possibly with a core dump

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