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 v5.10.121 by commit f2c68c52898f623fe84518da4606538d193b0cca, it was introduced in version v5.6 by commit d4cfb30fce03093ad944e0b44bd8f40bdad5330e. For more details please see the references link.