SB2025021063 - Out-of-bounds read in Linux kernel sched
Published: February 10, 2025 Updated: September 17, 2025
Security Bulletin ID
SB2025021063
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) Out-of-bounds read (CVE-ID: CVE-2025-21692)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the ets_class_from_arg() function in net/sched/sch_ets.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/03c56665dab1f4ac844bc156652d50d639093fa5
- https://git.kernel.org/stable/c/1332c6ed446be787f901ed1064ec6a3c694f028a
- https://git.kernel.org/stable/c/997f6ec4208b23c87daf9f044689685f091826f7
- https://git.kernel.org/stable/c/bcf0d815e728a3a304b50455b32a3170c16e1eaa
- https://git.kernel.org/stable/c/d62b04fca4340a0d468d7853bd66e511935a18cb
- https://git.kernel.org/stable/c/f4168299e553f17aa2ba4016e77a9c38da40eb1d
- https://git.kernel.org/stable/c/f6b0f05fbfa4044f890e8a348288c0d9a20bd1d0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.1