SB20241230196 - Improper locking in Linux kernel
Published: December 30, 2024 Updated: May 11, 2025
Security Bulletin ID
SB20241230196
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-2024-56559)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the decay_va_pool_node() and purge_vmap_node() functions in mm/vmalloc.c, within the kasan_depopulate_vmalloc_pte() and kasan_release_vmalloc() functions in mm/kasan/shadow.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.