In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference. CREATE(Triage):(User=admin) CVE-2021-47211 (https://nvd.nist.gov/vuln/detail/CVE-2021-47211)
