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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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Jason Lowe reassigned YARN-2847:
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Assignee: Olaf Flebbe (was: Chang Li)
Agree the extra test in TestLinuxContainerExecutor is not needed and more
restrictive since it requires a mapred user to exist. [~oflebbe] would you
mind updating the patch? Otherwise patch looks good to me.
> 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, 2.4.1, 2.6.0
> Reporter: Jason Lowe
> Assignee: Olaf Flebbe
> Attachments: YARN-2487.04.trunk.patch, YARN-2487.05.trunk.patch,
> yarn2847.patch, yarn2847.patch, 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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