[PATCH v3] selinux: measure state and policy capabilities

Lakshmi Ramasubramanian nramas at linux.microsoft.com
Fri Mar 5 02:16:10 UTC 2021

On 3/4/21 5:45 PM, Paul Moore wrote:
> 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.

Thanks Paul.


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