SB20251226232 - Improper locking in Linux kernel f2fs
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226232
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-2023-54124)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __write_data_page() function in fs/f2fs/data.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/4ceedc2f8bdffb82e40b7d1bb912304f8e157cb1
- https://git.kernel.org/stable/c/7741ddc882a0c806a6508ba8203c55a779db7a21
- https://git.kernel.org/stable/c/82c3d6e9db41cbd3af1d4f90bdb441740b5fad10
- https://git.kernel.org/stable/c/92575f05a32dafb16348bfa5e62478118a9be069
- https://git.kernel.org/stable/c/ad87bd313f70b51e48019d5ce2d02d73152356b3
- https://git.kernel.org/stable/c/c9b3649a934d131151111354bcbb638076f03a30
- https://git.kernel.org/stable/c/d8f4ad5f3979dbd8e6251259562f12472717883a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.113