CVE-2025-40085: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

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().

Affected products

• Linux Linux: from 5.15.75, before 5.15.196 (fixed in 5.15.196); from 5.19.17, before 5.20 (fixed in 5.20); from 6.0.3, before 6.1 (fixed in 6.1); from 6.1, before 6.1.158 (fixed in 6.1.158); from 6.2, before 6.6.114 (fixed in 6.6.114); from 6.7, before 6.12.55 (fixed in 6.12.55); …

Published 2025-10-29. Last modified 2026-06-17.