SB2026052888 - Improper resource shutdown or release in Linux kernel usb caiaq

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-45992)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 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

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

The vulnerability exists due to improper resource shutdown or release in the setup_card() error path for the caiaq driver when handling device initialization errors. A local user can trigger the error path to cause a denial of service.

The issue involves a previously submitted internal URB that is not killed on the error path and may remain active until disconnection.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/0a7b5221b5b51cc798fcfc3be00d02eade149d69
• https://git.kernel.org/stable/c/1d160e30aa42b7c41163e51366bb34432367260d
• https://git.kernel.org/stable/c/438ab932dc6fef5b001dfeba08a18a491edc8f7b
• https://git.kernel.org/stable/c/be62c8bb03b6aec3790a943d4a7567d4d73b8be9
• https://git.kernel.org/stable/c/e0fb842af7052f0ab9e709db0c59300aa4051fc0