SB20251008105 - Improper locking in Linux kernel gfs2
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008105
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2023-53622)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the gfs2_show_options() function in fs/gfs2/super.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/235a5ae73cea29109a3e06f100493f17857e6a93
- https://git.kernel.org/stable/c/42077d4de49e4d9c773c97c42d5383b4899a8f9d
- https://git.kernel.org/stable/c/6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20
- https://git.kernel.org/stable/c/7c5b2649f6a37d45bfb7abf34c9b71d08677139f
- https://git.kernel.org/stable/c/7e5bbeb7eb813bb2568e1d5d02587df943272e57
- https://git.kernel.org/stable/c/85e888150075cb221270b64bf772341fc6bd11d9
- https://git.kernel.org/stable/c/a4f71523ed2123d63b431cc0cea4e9f363a0f054
- https://git.kernel.org/stable/c/b4a7ab57effbed42624842f2ab2a49b177c21a47
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.255