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LIN5-23790 : Security Advisory - linux - CVE-2017-14340

Created: Sep 26, 2017    Updated: May 29, 2018
Resolved Date: Oct 25, 2017
Found In Version: 5.0.1.41
Fix Version: 5.0.1.42
Severity: Standard
Applicable for: Wind River Linux 5
Component/s: Kernel

Description

The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via vectors related to setting an RHINHERIT flag on a directory.

https://nvd.nist.gov/vuln/detail/CVE-2017-14340

Steps to Reproduce

enable CONFIG_XFS_RT

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