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https://issues.apache.org/jira/browse/YARN-7455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244579#comment-16244579
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Eric Yang commented on YARN-7455:
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There is a max size check in add_mounts to prevent buffer overflow. The
current size can contain source and target path of 510 characters deep. Do we
want to double it? Given that we don't add black list into the tmp_buffer, do
we still need this?
> add_mounts can overrun temporary buffer
> ---------------------------------------
>
> Key: YARN-7455
> URL: https://issues.apache.org/jira/browse/YARN-7455
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.9.0, 3.0.0
> Reporter: Jason Lowe
>
> While reviewing YARN-7197 I noticed that add_mounts in docker_util.c has a
> potential buffer overflow since tmp_buffer is only 1024 bytes which may not
> be sufficient to hold the specified mount path.
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