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https://issues.apache.org/jira/browse/YARN-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chang li updated YARN-2847:
---------------------------
    Attachment: yarn2847notest.patch

patch with no test

> Linux native container executor segfaults if default banned user detected
> -------------------------------------------------------------------------
>
>                 Key: YARN-2847
>                 URL: https://issues.apache.org/jira/browse/YARN-2847
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: chang li
>         Attachments: yarn2847notest.patch
>
>
> The check_user function in container-executor.c can cause a segmentation 
> fault if banned.users is not provided but the user is detected as one of the 
> default users.  In that scenario it will call free_values on a NULL pointer.



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