#VU92922 Improper locking in Linux kernel - CVE-2022-48734
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92922
Vulnerability risk: Low
CVSSv4.0: 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
CVE-ID: CVE-2022-48734
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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