In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.
3.13.0-168.2184.4.0-1038.414.15.0-1041.45~14.04.14.4.0-142.168~14.04.14.4.0-142.1684.4.0-1075.854.15.0-1035.37~16.04.14.15.0-1041.454.15.0-1029.31~16.04.14.15.0-47.50~16.04.1Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:HA:HCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H