The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call, related to fs/fs_pin.c and include/linux/fs_pin.h.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T06:04:02.977Z

Reserved: 2015-06-04T00:00:00

Link: CVE-2015-4178

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-05-02T10:59:16.203

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-4178

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-07-01T00:00:00Z

Links: CVE-2015-4178 - Bugzilla