#VU120821 Improper locking in Linux kernel - CVE-2022-50833
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120821
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-2022-50833
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 handle_cmd_cnt_and_timer() function in net/bluetooth/hci_event.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/3c6b036fe5c8ed8b6c4cbdc03605929882907ef0
- https://git.kernel.org/stable/c/c4635cf3d845a7324c25c52d549b70c8bd7ad4c7
- https://git.kernel.org/stable/c/deee93d13d385103205879a8a0915036ecd83261
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1