SB20251226341 - Improper locking in Linux kernel can
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226341
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-2023-54105)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the isotp_bind() function in net/can/isotp.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/2fc6f337257f4f7c21ecff429241f7acaa6df4e8
- https://git.kernel.org/stable/c/9427584c2f153d0677ef3bad6f44028c60d728c4
- https://git.kernel.org/stable/c/c6adf659a8ba85913e16a571d5a9bcd17d3d1234
- https://git.kernel.org/stable/c/dd4faace51e41a82a8c0770ee0cc26088f9d9d06
- https://git.kernel.org/stable/c/de3c02383aa678f6799402ac47fdd89cf4bfcaa9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.200