ALSA: gus: fix null pointer dereference on pointer block
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.4.293 by commit 3e28e083dcdf03a18a083f8a47b6bb6b1604b5be. For more details please see the references link.