Re: [PATCH] x86/acpi: check rsdp address received via bootparams to be valid

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* Juergen Gross <jgross@xxxxxxxx> wrote:

> There seem to exist several grub2 versions trashing
> boot_params.hdr.acpi_rsdp_addr.
> 
> So don't just believe this address to be valid, but verify it pointing
> to a valid RSDP table.

Exactly what kind of values do those Grub2 versions put into that field? Pointer 
to something, or random noise?

Also, what exactly does 'validation' mean, how robustly does it filter out of spec 
uses of the boot protocol?

Thanks,

	Ingo
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