CVE-2025-40275 ALSA: usb-audio: Fix NULL pointer dereference in snd_usb_mixer_controls_badd

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix NULL pointer dereference in sndusbmixercontrolsbadd In sndusbcreatestreams, for UAC version 3 devices, the Interface Association Descriptor IAD is retrieved via usbifnumtoif. If this call fails, a fallback...