linux-kernel - Re: [PATCH v2 2/8] ima: Switch to ima_hash

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Message-Id: <1580991426.5585.334.camel@linux.ibm.com>
Date:   Thu, 06 Feb 2020 07:17:06 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Roberto Sassu <roberto.sassu@...wei.com>,
        "James.Bottomley@...senPartnership.com" 
        <James.Bottomley@...senPartnership.com>,
        "jarkko.sakkinen@...ux.intel.com" <jarkko.sakkinen@...ux.intel.com>
Cc:     "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Silviu Vlasceanu <Silviu.Vlasceanu@...wei.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH v2 2/8] ima: Switch to ima_hash_algo for boot aggregate

On Thu, 2020-02-06 at 09:36 +0000, Roberto Sassu wrote:
> > Hi Roberto,
> > 
> > On Wed, 2020-02-05 at 11:33 +0100, Roberto Sassu wrote:
> > 
> > <snip>
> > 
> > > Reported-by: Jerry Snitselaar <jsnitsel@...hat.com>
> > > Suggested-by: James Bottomley
> > <James.Bottomley@...senPartnership.com>
> > > Signed-off-by: Roberto Sassu <roberto.sassu@...wei.com>
> > > Cc: stable@...r.kernel.org
> > 
> > Cc'ing stable resulted in Sasha's automated message.  If you're going
> > to Cc stable, then please include the stable kernel release (e.g. Cc:
> > stable@...r.kernel.org # v5.3).  Also please include a "Fixes" tag.
> >  Normally only bug fixes are backported.
> 
> Ok, will add the kernel version. I also thought which commit I should
> mention in the Fixes tag. IMA always read the SHA1 bank from the
> beginning. I could mention the patch that introduces the new API
> to read other banks, but I'm not sure. What do you think?

This patch is dependent on nr_allocated_banks.  Please try applying
this patch to the earliest stable kernel with the commit that
introduces nr_allocated_banks and test to make sure it works properly.

thanks,

Mimi