CVE-2023-2612 - CVE House
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Status published Medium CVE-2023-2612

shiftfs lock unbalance in Ubuntu-specific kernels

Vulnerability Description

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jean-Baptiste Cayrou

References

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Affected Vendor

Canonical Ltd.

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Affected Software

ubuntu-linux
Vulnerable Versions:
0

Timeline

Official Publish: May 30th, 2023
Last Modified: February 13th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-667

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.