SB20251226334 - Incorrect calculation in Linux kernel landlock
Published: December 26, 2025
Security Bulletin ID
SB20251226334
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) Incorrect calculation (CVE-ID: CVE-2025-68736)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the is_access_to_paths_allowed(), maybe_remove() and collect_domain_accesses() functions in security/landlock/fs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.