SB2024082241 - Improper locking in Linux kernel btrfs
Published: August 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082241
CSH 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 vulnerability.
1) Improper locking (CVE-ID: CVE-2022-48920)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the btrfs_cleanup_pending_block_groups() function in fs/btrfs/transaction.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/850a77c999b81dd2724efd2684068d6f90db8c16
- https://git.kernel.org/stable/c/e4d044dbffcd570351f21c747fc77ff90aed7f2e
- https://git.kernel.org/stable/c/a0f0cf8341e34e5d2265bfd3a7ad68342da1e2aa
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17