SB20251230299 - Buffer overflow in Linux kernel tc-tests qdiscs
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230299
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) Buffer overflow (CVE-ID: CVE-2023-54251)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the function in tools/testing/selftests/tc-testing/tc-tests/qdiscs/taprio.json. 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/0b45af982a4df0b14fb8669ee2a871cfdfa6a39c
- https://git.kernel.org/stable/c/57b3fe08ae06ef11af007b4a182629b12a961e30
- https://git.kernel.org/stable/c/e739718444f7bf2fa3d70d101761ad83056ca628
- https://git.kernel.org/stable/c/f04f6d9b3b060f7e11219a65a76da65f1489e391
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.126