SB20251226207 - NULL pointer dereference in Linux kernel md driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226207
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) NULL pointer dereference (CVE-ID: CVE-2022-50715)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the raid1_run() function in drivers/md/raid1.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/0c7c7468c3ae222e297b7dc74d6ccb69c4d0183c
- https://git.kernel.org/stable/c/10d713532ffc67b13df61ed9c138a8ce0a186236
- https://git.kernel.org/stable/c/110f14a7b2eb5b8aa9df5af2d629524f2a07d543
- https://git.kernel.org/stable/c/19d5a0e17aba92b10d895e40ec782768cf00da23
- https://git.kernel.org/stable/c/22be44212cad8be96860346882d8e694b0b437b6
- https://git.kernel.org/stable/c/a3cc41e05e8af340a2a759b168c29fffdb9194eb
- https://git.kernel.org/stable/c/b611ad14006e5be2170d9e8e611bf49dff288911
- https://git.kernel.org/stable/c/d26364596db8f8b55277b2afb3952e05a4057a21
- https://git.kernel.org/stable/c/d684ceb77311410aeaf5189d321f9f564838c49a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337