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Issue31347

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classification
Title:possible undefined behavior in _PyObject_FastCall_Prepend
Type:Stage:resolved
Components:Versions:Python 3.7, Python 3.6
process
Status:closedResolution:fixed
Dependencies:Superseder:
Assigned To:Nosy List: benjamin.peterson
Priority:normalKeywords:

Created on2017-09-04 23:32 bybenjamin.peterson, last changed2022-04-11 14:58 byadmin. This issue is nowclosed.

Pull Requests
URLStatusLinkedEdit
PR 3329mergedbenjamin.peterson,2017-09-04 23:35
Messages (2)
msg301283 -(view)Author: Benjamin Peterson (benjamin.peterson)*(Python committer)Date: 2017-09-04 23:32
As seen by ubsan:../cpython/Objects/call.c:858:9: runtime error: null pointer passed as argument 2, which is declared to never be null
msg301298 -(view)Author: Benjamin Peterson (benjamin.peterson)*(Python committer)Date: 2017-09-05 05:23
New changeseta3070d530c70477273cacbc61660b318582fff44 by Benjamin Peterson in branch 'master':bpo-31347: _PyObject_FastCall_Prepend: do not call memcpy if args might not be null (#3329)https://github.com/python/cpython/commit/a3070d530c70477273cacbc61660b318582fff44
History
DateUserActionArgs
2022-04-11 14:58:51adminsetgithub: 75528
2017-09-05 05:25:55benjamin.petersonsetstatus: open -> closed
resolution: fixed
stage: resolved
2017-09-05 05:23:44benjamin.petersonsetmessages: +msg301298
2017-09-04 23:35:49benjamin.petersonsetpull_requests: +pull_request3351
2017-09-04 23:32:36benjamin.petersoncreate
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