Re: [PATCH] x86: Lock down MSR writing in secure boot

From: H. Peter Anvin
Date: Wed Feb 13 2013 - 12:24:03 EST


On 02/13/2013 12:27 AM, Paolo Bonzini wrote:

On non-x86 machines CAP_SYS_RAWIO is much less dangerous, especially
when coupled with file DAC.


Either way, I think you are at best deluded and more like you just completely wrong about CAP_SYS_RAWIO being "less dangerous on non-x86 machines". With the possible exception of s390 I suspect it is, in fact, more dangerous.

-hpa


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

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