SB20250226495 - Improper locking in Linux kernel btrfs
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226495
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-2022-49547)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the btrfs_get_blocks_direct_write(), btrfs_dio_iomap_begin() and unlock_extent_cached() functions in fs/btrfs/inode.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.