SB20251226247 - Improper locking in Linux kernel md driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226247
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-2022-50752)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the raid5_read_one_chunk() function in drivers/md/raid5.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/21a9c7354aa59e97e26ece5f0a609c8bfa43020d
- https://git.kernel.org/stable/c/7a37c58ee72e1fadd22c4ee990cb74c2ca2280e7
- https://git.kernel.org/stable/c/c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf
- https://git.kernel.org/stable/c/c66a6f41e09ad386fd2cce22b9cded837bbbc704
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1