[PATCH v3] selinux: measure state and policy capabilities

Paul Moore paul at paul-moore.com
Fri Mar 5 01:45:41 UTC 2021

On Thu, Mar 4, 2021 at 2:20 PM Lakshmi Ramasubramanian
<nramas at linux.microsoft.com> wrote:
> On 2/12/21 8:37 AM, Lakshmi Ramasubramanian wrote:
> Hi Paul,
> > SELinux stores the configuration state and the policy capabilities
> > in kernel memory.  Changes to this data at runtime would have an impact
> > on the security guarantees provided by SELinux.  Measuring this data
> > through IMA subsystem provides a tamper-resistant way for
> > an attestation service to remotely validate it at runtime.
> >
> > Measure the configuration state and policy capabilities by calling
> > the IMA hook ima_measure_critical_data().
> >
> I have addressed your comments on the v2 patch for selinux measurement
> using IMA. Could you please let me know if there are any other comments
> that I need to address in this patch?

The merge window just closed earlier this week, and there were a
handful of bugs that needed to be addressed before I could look at
this patch.  If I don't get a chance to review this patch tonight, I
will try to get to it this weekend or early next week.

paul moore

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