ALSA: pcm: Check for null pointer of pointer substream before dereferencing it
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 v5.15.46 by commit 7784d22f81a29df2ec57ca90d54f93a35cbcd1a2, it was introduced in version v5.6 by commit d4cfb30fce03093ad944e0b44bd8f40bdad5330e. For more details please see the references link.