Improper locking in Linux kernel - CVE-2022-49316
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104695
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-2022-49316
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 _nfs4_open_and_get_state() function in fs/nfs/nfs4proc.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49316
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/08d7a26d115cc7892668baa9750f64bd8baca29b
- https://git.kernel.org/stable/c/0ee5b9644f06b4d3cdcd9544f43f63312e425a4c
- https://git.kernel.org/stable/c/6949493884fe88500de4af182588e071cf1544ee
- https://git.kernel.org/stable/c/6b3fc1496e7227cd6a39a80bbfb7588ef7c7a010
- https://git.kernel.org/stable/c/a2b3be930e79cc5d9d829f158e31172b2043f0cd
- https://git.kernel.org/stable/c/d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e
- https://git.kernel.org/stable/c/ea759ae0a9ae5acee677d722129710ac89cc59c1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4