SB20251008108 - Improper locking in Linux kernel md driver
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008108
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-2022-50534)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __open_metadata() function in drivers/md/dm-thin-metadata.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/3db757ffdd87ed8d7118b2250236a496502a660f
- https://git.kernel.org/stable/c/4b710e8481ade7c9200e94d3018e99dc42a0a0e8
- https://git.kernel.org/stable/c/7991dbff6849f67e823b7cc0c15e5a90b0549b9f
- https://git.kernel.org/stable/c/87d69b8824ca9b090f5a8ed47f758e8f6eecb871
- https://git.kernel.org/stable/c/94f01ecc2aa0be992865acc80ebb6701f731f955
- https://git.kernel.org/stable/c/a63ce4eca86fd207e3db07c00fb7ccf4adf1b230
- https://git.kernel.org/stable/c/b35a22760aa5008d82533e59b0f0b5eb1b02d4e5
- https://git.kernel.org/stable/c/b91f481300e3a10eaf66b94fc39b740928762aaf
- https://git.kernel.org/stable/c/f758987ff0af3a4b5ee69e95cab6a5294e4367b0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229