[ 
https://issues.apache.org/jira/browse/YARN-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14321477#comment-14321477
 ] 

Hudson commented on YARN-2847:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #105 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/105/])
YARN-2847. Linux native container executor segfaults if default banned user 
detected. Contributed by Olaf Flebbe (jlowe: rev 
1a0f508b6386b1c26ec606f6d73afddaa191b7d8)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c


> 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
>             Fix For: 2.7.0
>
>         Attachments: YARN-2487.04.trunk.patch, YARN-2487.05.trunk.patch, 
> YARN-2487.06.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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