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

[H. Peter Anvin]

On 02/08/2013 11:18 AM, Kees Cook wrote:
> No. CAP_RAWIO is for reading. Writing needs a much stronger check.
>
> -Kees

If so, I suspect we need to do this for *all* raw I/O... but I keep 
wondering how much more sensitive writing really is than reading.

	-hpa

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/