Re: [PATCH v3 2/5] efi: stub: use random seed from EFI variable

[Matthew Garrett]

On Tue, Nov 22, 2022 at 03:04:01AM +0100, Jason A. Donenfeld wrote:

> +		 * We delete the seed here, and /hope/ that this causes EFI to
> +		 * also zero out its representation on disk. This is somewhat

Several implementations I've worked with simply append a deletion marker 
or append a new variable value until the variable store fills up 
entirely, at which point a garbage collection event is either run or 
scheduled for the next reboot. The spec doesn't define how this is 
handled so unfortunately I don't think there's any way to get a pony 
here.