CVE-2025-40085

medium

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card In try_to_register_card(), the return value of usb_ifnum_to_if() is passed directly to usb_interface_claimed() without a NULL check, which will lead to a NULL pointer dereference when creating an invalid USB audio device. Fix this by adding a check to ensure the interface pointer is valid before passing it to usb_interface_claimed().

References

https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f

https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb

https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51

https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0

https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea

https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4

Details

Source: Mitre, NVD

Published: 2025-10-29

Updated: 2025-10-30

Risk Information

CVSS v2

Base Score: 5.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Severity: Medium

EPSS

EPSS: 0.00024