#VU120731 Use-after-free in Linux kernel - CVE-2022-50881
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120731
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-2022-50881
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 ath9k_htc_disconnect_device() function in drivers/net/wireless/ath/ath9k/htc_drv_init.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/1f137c634a8c8faba648574f687805641e62f92e
- https://git.kernel.org/stable/c/634a5471a6bd774c0d0fa448dfa6ec593e899ec9
- https://git.kernel.org/stable/c/99ff971b62e5bd5dee65bbe9777375206f5db791
- https://git.kernel.org/stable/c/de15e8bbd9eb26fe94a06d0ec7be82dc490eb729
- https://git.kernel.org/stable/c/f099c5c9e2ba08a379bd354a82e05ef839ae29ac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3