SB2025040283 - Improper locking in Linux kernel mm
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040283
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-2025-21931)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the do_migrate_range() function in mm/memory_hotplug.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/576a2f4c437c19bec7d05d05b5990f178d2b0f40
- https://git.kernel.org/stable/c/629dfc6ba5431056701d4e44830f3409b989955a
- https://git.kernel.org/stable/c/af288a426c3e3552b62595c6138ec6371a17dbba
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14