SB20260812318 - Improper control of a resource through its lifetime in Linux kernel usb cx231xx driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-68227)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: 6.8 [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]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource lifetime management in the cx231xx USB media driver when the driver is unbound from a USB interface without physical device disconnection. A local user can trigger driver unbind or reconfiguration conditions to cause a denial of service.

The issue can be triggered during probe deferral or configuration changes.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/7d6358ab02866e5b7ed8d3a00805297617bbb0ec
• https://git.kernel.org/stable/c/a373f1a5137e96549a795e7fb9efb5de0ae1d065
• https://git.kernel.org/stable/c/c5ccb01eb1107acb6aab8ce8fe5a523f215c837e
• https://git.kernel.org/stable/c/e797e252bfb3d0d4b3d38e4faef817e05869c240
• https://git.kernel.org/stable/c/f468b7ee5d6332b01e6c538179a4c720e6dae93b