CVE-2021-47211: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: before 5.15.5 (fixed in 5.15.5)

Published 2024-04-10. Last modified 2026-06-19.