linux-kernel - Re: [PATCH v9 4/8] IMA: add policy rule to measure critical data

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f1e3c1e6-07e1-2e8a-9824-208ccba28d17@linux.microsoft.com>
Date:   Tue, 5 Jan 2021 12:12:58 -0800
From:   Tushar Sugandhi <tusharsu@...ux.microsoft.com>
To:     Mimi Zohar <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
Cc:     tyhicks@...ux.microsoft.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 v9 4/8] IMA: add policy rule to measure critical data


On 2020-12-24 5:48 a.m., Mimi Zohar wrote:
> Hi Tushar,
> 
> Please update the Subject line as, "Add policy rule support for
> measuring critical data".
> 
> On Sat, 2020-12-12 at 10:02 -0800, Tushar Sugandhi wrote:
>> A new IMA policy rule is needed for the IMA hook
>> ima_measure_critical_data() and the corresponding func CRITICAL_DATA for
>> measuring the input buffer. The policy rule should ensure the buffer
>> would get measured only when the policy rule allows the action. The
>> policy rule should also support the necessary constraints (flags etc.)
>> for integrity critical buffer data measurements.
>>
>> Add a policy rule to define the constraints for restricting integrity
>> critical data measurements.
>>
>> Signed-off-by: Tushar Sugandhi <tusharsu@...ux.microsoft.com>
> 
> This patch does not restrict measuring critical data, but adds policy
> rule support for measuring critical data.  please update the patch
> description accordingly.
> 
Will do. Will update the patch description accordingly.

> Other than that,
> 
> Reviewed-by: Mimi Zohar <zohar@...ux.ibm.com>
> 
Thanks a lot for the Reviewed-by tag. :)