Re: [PATCH 2/2] efi: Validate UEFI boot variables

[Alan Cox]

On Thu, 16 Feb 2012 08:58:37 -0500
Matthew Garrett <mjg@xxxxxxxxxx> wrote:

> A common flaw in UEFI systems is a refusal to POST triggered by a malformed
> boot variable. Once in this state, machines may only be restored by
> reflashing their firmware with an external hardware device. While this is
> obviously a firmware bug, the serious nature of the outcome suggests that
> operating systems should filter their variable writes in order to prevent
> a malicious user from rendering the machine unusable.
> 
> Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx>

Other than pr_err() as a nitpick comemnt this looks good to me

Acked-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
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