linux-kernel - Re: [PATCH v7 4/5] IMA: Add support to limit measuring keys

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Message-ID: <1deec85d-78b1-0cf2-ec2c-7dacaa2c3672@linux.microsoft.com>
Date:   Thu, 14 Nov 2019 10:18:55 -0800
From:   Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>
To:     Mimi Zohar <zohar@...ux.ibm.com>, dhowells@...hat.com,
        matthewgarrett@...gle.com, sashal@...nel.org,
        jamorris@...ux.microsoft.com, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 4/5] IMA: Add support to limit measuring keys

On 11/14/2019 6:37 AM, Mimi Zohar wrote:
> Keyrings may be created by userspace with any name (e.g. foo, foobar,
> ...).  A keyring name might be a subset of another keyring name.  For
> example, with the policy "keyrings=foobar", keys being loaded on "foo"
> would also be measured.  Using strstr() will not achieve what is
> needed.
> 
> Mimi

Very good catch - I missed that :(

Will fix and send an update.

thanks,
  -lakshmi