SB20251210120 - Improper locking in Linux kernel
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB20251210120
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-2022-50668)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the include/linux/mbcache.h. 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/127b80cefb941a81255c72f11081123f3a705369
- https://git.kernel.org/stable/c/1be16a0c2f10186df505e28b0cc92d7f3366e2a8
- https://git.kernel.org/stable/c/5bc0b2fda4b47c86278f7c6d30c211f425bf51cf
- https://git.kernel.org/stable/c/a44e84a9b7764c72896f7241a0ec9ac7e7ef38dd
- https://git.kernel.org/stable/c/af53065276376750dfac35a7248af18806404c5d
- https://git.kernel.org/stable/c/cc1538c693d25e282bed8c54b65c914a04023a78
- https://git.kernel.org/stable/c/efaa0ca678f56d47316a08030b2515678cebbc50
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270