On Thu, 19 Oct 2017 15:52:04 +0100
David Howells [off-list ref] wrote:

From: Matthew Garrett <redacted>

Writing to MSRs should not be allowed if the kernel is locked down, since
it could lead to execution of arbitrary code in kernel mode.  Based on a
patch by Kees Cook.

There are a load of standard tools that use this so I think you are going
to need a whitelist. Can you at least log *which* MSR in the failing case
so a whitelist can be built over time ?

Alan
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