CVE-2016-6197

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

Metrics

CVSS 3.0 5.5/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published: Aug 6, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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