CVE-2026-31581 ALSA: 6fire: fix use-after-free on disconnect

In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: fix use-after-free on disconnect In usb6firechipabort, the chip struct is allocated as the card's private data via sndcardnew with sizeofstruct sfirechip. When sndcardfreewhenclosed is called and no file handles are...