[PATCH 01/12] Security: Add CAP_COMPROMISE_KERNEL

[H. Peter Anvin]

On 03/19/2013 06:02 PM, H. Peter Anvin wrote:
> 
> Looking at it in detail, EVERYTHING in CAP_SYS_RAWIO has the possibility
> of compromising the kernel, because they let device drivers be bypassed,
> which means arbitrary DMA, which means you have everything.
> 

Well, *unless* you have an iommu that you *actually know* is protecting you.

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.