SB20251230262 - Improper locking in Linux kernel btrfs
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230262
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-2023-54180)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the repair_io_failure() function in fs/btrfs/extent_io.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/53e9d6851b56626885476a2966194ba994f8bb4b
- https://git.kernel.org/stable/c/a7018b40b49c37fb55736499f790ec0d2b381ae4
- https://git.kernel.org/stable/c/d73a27b86fc722c28a26ec64002e3a7dc86d1c07
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2