SB20250916171 - NULL pointer dereference in Linux kernel md driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916171
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-2023-53210)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the r5l_log_flush_endio() function in drivers/md/raid5-cache.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/0d0bd28c500173bfca78aa840f8f36d261ef1765
- https://git.kernel.org/stable/c/711fb92606208a8626b785da4f9f23d648a5b6c8
- https://git.kernel.org/stable/c/7a8b6d93991bf4b72b3f959baea35397c6c8e521
- https://git.kernel.org/stable/c/e46b2e7be8059d156af8c011dd8d665229b65886
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3