All I did was merge the techniques to make a full privesc and toss in the "Fill in the blanks" from https://labs.sentinelone.com/cve-2021-21551-hundreds-of-millions-of-dell-computers-at-risk-due-to-multiple-bios-driver-privilege-escalation-flaws/
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Not much I can take credit for here! But in case you're wondering my twitter is @waldoirc