linux-kernel - Re: [PATCH] ima: Fix the error code for restoring the PCR value

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Date:   Thu, 25 Mar 2021 11:09:27 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Roberto Sassu <roberto.sassu@...wei.com>,
        lihuafei <lihuafei1@...wei.com>,
        "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>
Cc:     "dmitry.kasatkin@...il.com" <dmitry.kasatkin@...il.com>,
        "jmorris@...ei.org" <jmorris@...ei.org>,
        "serge@...lyn.com" <serge@...lyn.com>,
        yangjihong <yangjihong1@...wei.com>,
        Zhangjinhao <zhangjinhao2@...wei.com>
Subject: Re: [PATCH] ima: Fix the error code for restoring the PCR value

On Wed, 2021-03-24 at 09:00 +0000, Roberto Sassu wrote:
> > From: lihuafei
> > Sent: Tuesday, March 23, 2021 2:41 PM
> > ping. :-)
> > 
> > On 2021/3/3 11:28, Li Huafei wrote:
> > > In ima_restore_measurement_list(), hdr[HDR_PCR].data is pointing to a
> > > buffer of type u8, which contains the dumped 32-bit pcr value.
> > > Currently, only the least significant byte is used to restore the pcr
> > > value. We should convert hdr[HDR_PCR].data to a pointer of type u32
> > > before fetching the value to restore the correct pcr value.
> > >
> > > Fixes: 47fdee60b47f ("ima: use ima_parse_buf() to parse measurements
> > headers")
> > > Signed-off-by: Li Huafei <lihuafei1@...wei.com>
> 
> Hi Li Huafei
> 
> yes, correct. Thanks for the patch.
> 
> Reviewed-by: Roberto Sassu <roberto.sassu@...wei.com>

The patch set is now queued in next-integrity-testing.

thanks,

Mimi