#VU111443 Use-after-free in Linux kernel - CVE-2022-50072
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111443
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50072
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the _nfs4_open_and_get_state() function in fs/nfs/nfs4proc.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0fffb46ff3d5ed4668aca96441ec7a25b793bd6f
- https://git.kernel.org/stable/c/2135e5d56278ffdb1c2e6d325dc6b87f669b9dac
- https://git.kernel.org/stable/c/76ffd2042438769298f34b76102b40dea89de616
- https://git.kernel.org/stable/c/a4cf3dadd1fa43609f7c6570c9116b0e0a9923d1
- https://git.kernel.org/stable/c/b03d1117e9be7c7da60e466eaf9beed85c5916c8
- https://git.kernel.org/stable/c/f7ee3b772d9de87387a725caa04bc041ac7fe5ec
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.211