linux-kernel - Re: [PATCH v7 6/8] IMA: extend critical data hook to limit the measurement based on a label

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Message-ID: <d0ad5746-e699-ad61-72bd-15a373e06928@linux.microsoft.com>
Date:   Thu, 10 Dec 2020 17:29:47 -0800
From:   Tushar Sugandhi <tusharsu@...ux.microsoft.com>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>
Cc:     zohar@...ux.ibm.com, stephen.smalley.work@...il.com,
        casey@...aufler-ca.com, agk@...hat.com, snitzer@...hat.com,
        gmazyland@...il.com, paul@...l-moore.com, sashal@...nel.org,
        jmorris@...ei.org, nramas@...ux.microsoft.com,
        linux-integrity@...r.kernel.org, selinux@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, dm-devel@...hat.com
Subject: Re: [PATCH v7 6/8] IMA: extend critical data hook to limit the
 measurement based on a label



On 2020-12-10 3:19 p.m., Tyler Hicks wrote:
> On 2020-12-09 11:42:10, Tushar Sugandhi wrote:
>> The IMA hook ima_measure_critical_data() does not support a way to
>> specify the source of the critical data provider. Thus, the data
>> measurement cannot be constrained based on the data source label
>> in the IMA policy.
>>
>> Extend the IMA hook ima_measure_critical_data() to support passing
>> the data source label as an input parameter, so that the policy rule can
>> be used to limit the measurements based on the label.
>>
>> Signed-off-by: Tushar Sugandhi <tusharsu@...ux.microsoft.com>
> 
> Reviewed-by: Tyler Hicks <tyhicks@...ux.microsoft.com>
> 
> Tyler
> 
Thanks for the review.
~Tushar