SB20240620197 - Improper locking in Linux kernel btrfs
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620197
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-2022-48734)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the btrfs_quota_disable() and qgroup_rescan_init() functions in fs/btrfs/qgroup.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/26b3901d20bf9da2c6a00cb1fb48932166f80a45
- https://git.kernel.org/stable/c/32747e01436aac8ef93fe85b5b523b4f3b52f040
- https://git.kernel.org/stable/c/89d4cca583fc9594ee7d1a0bc986886d6fb587e6
- https://git.kernel.org/stable/c/31198e58c09e21d4f65c49d2361f76b87aca4c3f
- https://git.kernel.org/stable/c/e804861bd4e69cc5fe1053eedcb024982dde8e48
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.178