Improper locking in Linux kernel - CVE-2022-48664
Published: June 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92031
CSH Severity: Low
CVSS v4.0: 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-2022-48664
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the close_ctree() function in fs/btrfs/disk-io.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-48664
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/6ac5b52e3f352f9cb270c89e6e1d4dadb564ddb8
- https://git.kernel.org/stable/c/d8a76a2e514fbbb315a6dfff2d342de2de833994
- https://git.kernel.org/stable/c/c338bea1fec5504290dc0acf026c9e7dba25004b
- https://git.kernel.org/stable/c/a362bb864b8db4861977d00bd2c3222503ccc34b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.147
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0