SB20240531277 - Out-of-bounds read in Linux kernel sched
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531277
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-2021-47044)
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 detach_tasks() function in kernel/sched/fair.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/80862cbf76c2646f709a57c4517aefe0b094c774
- https://git.kernel.org/stable/c/2f3eab368e313dba35fc2f51ede778bf7b030b54
- https://git.kernel.org/stable/c/805cea93e66ca7deaaf6ad3b67224ce47c104c2f
- https://git.kernel.org/stable/c/39a2a6eb5c9b66ea7c8055026303b3aa681b49a5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13