Re: [PATCH v3 1/9] KEYS: Defined an IMA hook to measure keys on key create or update

From: Sasha Levin
Date: Thu Oct 31 2019 - 11:27:35 EST


On Thu, Oct 31, 2019 at 08:08:48AM -0700, Lakshmi Ramasubramanian wrote:
On 10/31/19 5:10 AM, Mimi Zohar wrote:

On Wed, 2019-10-30 at 18:19 -0700, Lakshmi Ramasubramanian wrote:
Asymmetric keys used for verifying file signatures or certificates
are currently not included in the IMA measurement list.

This patch defines a new IMA hook namely ima_post_key_create_or_update()
to measure asymmetric keys.

It's not enough for the kernel to be able to compile the kernel after
applying all the patches in a patch set.  After applying each patch,
the kernel should build properly, otherwise it is not bi-sect safe.
 Refer to "3) Separate your changes" of
"Documentation/process/submitting-patches.rst.

I started with kernel version 5.3 for this patch set.
I applied Nayna's process_buffer_measurement() patch and then built my changes on top of that.
This patch has no other dependency as far as I know.

Are you seeing a build break after applying this patch alone?

(PATCH v3 1/9) KEYS: Defined an IMA hook to measure keys on key create or update

I couldn't even apply this patch: Nayna's series (v10) doesn't apply on
top of 5.3 to begin with, and while it does apply on mainline, this
first patch wouldn't apply on top.

--
Thanks,
Sasha