Insufficient control flow management in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable denial of service via adjacent access.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00356.html
https://lists.debian.org/debian-lts-announce/2021/04/msg00032.html