#VU120700 Memory leak in Linux kernel - CVE-2022-50809
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120700
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-2022-50809
CWE-ID: CWE-401
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 memory leak within the xhci_alloc_dbc() function in drivers/usb/host/xhci-dbgcap.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/103b459590e1eb4d80b02761eb36c7cae1d9b58e
- https://git.kernel.org/stable/c/116d6a6964986ea7eb516daa36128d270f1f248d
- https://git.kernel.org/stable/c/69e67c804d09a6b1bcda1f4f242f151f813eeb4a
- https://git.kernel.org/stable/c/d591b32e519603524a35b172156db71df9116902
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1