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A possible null pointer dereference in compile.c's merge_consts_recursive() #80555

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ZackerySpytz mannequin opened this issue Mar 19, 2019 · 2 comments
Closed

A possible null pointer dereference in compile.c's merge_consts_recursive() #80555

ZackerySpytz mannequin opened this issue Mar 19, 2019 · 2 comments
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3.8 (EOL) end of life interpreter-core (Objects, Python, Grammar, and Parser dirs) type-crash A hard crash of the interpreter, possibly with a core dump

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@ZackerySpytz
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ZackerySpytz mannequin commented Mar 19, 2019

BPO 36374
Nosy @methane, @ZackerySpytz, @miss-islington
PRs
  • bpo-36374: Fix a possible null pointer dereference #12449
  • 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 = <Date 2019-03-20.09:18:50.115>
    created_at = <Date 2019-03-19.21:45:28.738>
    labels = ['interpreter-core', '3.8', 'type-crash']
    title = "A possible null pointer dereference in compile.c's merge_consts_recursive()"
    updated_at = <Date 2019-03-20.09:18:50.114>
    user = 'https://github.com/ZackerySpytz'

    bugs.python.org fields:

    activity = <Date 2019-03-20.09:18:50.114>
    actor = 'methane'
    assignee = 'none'
    closed = True
    closed_date = <Date 2019-03-20.09:18:50.115>
    closer = 'methane'
    components = ['Interpreter Core']
    creation = <Date 2019-03-19.21:45:28.738>
    creator = 'ZackerySpytz'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 36374
    keywords = ['patch']
    message_count = 2.0
    messages = ['338411', '338444']
    nosy_count = 3.0
    nosy_names = ['methane', 'ZackerySpytz', 'miss-islington']
    pr_nums = ['12449']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'crash'
    url = 'https://bugs.python.org/issue36374'
    versions = ['Python 3.8']

    @ZackerySpytz
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    ZackerySpytz mannequin commented Mar 19, 2019

    If PyDict_SetDefault() fails in merge_consts_recursive(), Py_INCREF() will be called on a null pointer.

    @ZackerySpytz ZackerySpytz mannequin added 3.8 (EOL) end of life interpreter-core (Objects, Python, Grammar, and Parser dirs) type-crash A hard crash of the interpreter, possibly with a core dump labels Mar 19, 2019
    @miss-islington
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    New changeset 9b4a1b1 by Miss Islington (bot) (Zackery Spytz) in branch 'master':
    bpo-36374: Fix a possible null pointer dereference (GH-12449)
    9b4a1b1

    @methane methane closed this as completed Mar 20, 2019
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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    Labels
    3.8 (EOL) end of life interpreter-core (Objects, Python, Grammar, and Parser dirs) type-crash A hard crash of the interpreter, possibly with a core dump
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