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 v4.19.218 by commit ab4c1ebc40f699f48346f634d7b72b9c5193f315. For more details please see the references link.