SB20250327135 - Improper locking in Linux kernel f2fs
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250327135
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-2022-49742)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the init_f2fs_rwsem(), memcpy() and limit_reserve_root() functions in fs/f2fs/super.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.