SB20250402131 - Input validation error in Linux kernel sched
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250402131
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) Input validation error (CVE-ID: CVE-2025-21965)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the __bpf_kfunc_start_defs() function in kernel/sched/ext.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/515680e76c536dd4aa8e2b5d674b0d441baddf5b
- https://git.kernel.org/stable/c/752b56bb76e2471197d25d6948d85753043b10da
- https://git.kernel.org/stable/c/9360dfe4cbd62ff1eb8217b815964931523b75b3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14