CVE-2014-9717

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

Metrics

CVSS 3.0 6.1/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Weakness enumeration

CWE-284

Affected software

No affected versions have been published.

Timeline

Published: May 2, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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