linux-kernel - Re: [PATCH 2/6] ima: Return INTEGRITY_FAIL if digital signature can't be verified

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Date:	Tue, 05 Mar 2013 08:54:04 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, dmitry.kasatkin@...el.com
Subject: Re: [PATCH 2/6] ima: Return INTEGRITY_FAIL if digital signature
 can't be verified

On Tue, 2013-03-05 at 08:30 -0500, Mimi Zohar wrote:

> Digital signature verification happens using integrity_digsig_verify().
> If a digital signature is present in security.ima, then any error, which
> happens during signature verification, should lead to status
> INTEGRITY_FAIL.  In the future we might want to differentiate between
> persistent (eg. -ENOMEM) vs. non-persistent errors, in order to cache
> failures.  This patch removes the unnecessary -EOPNOTSUPP test.

correction, "persistent vs. non-persistent(eg. -ENOMEM)"

Mimi

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