linux-kernel - Re: [PATCH v6 24/26] powerpc/pseries: Implement secvars for dynamic secure boot

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Date:   Mon, 13 Feb 2023 16:26:45 +1100
From:   Michael Ellerman <michaele@....ibm.com>
To:     Andrew Donnellan <ajd@...ux.ibm.com>,
        Stefan Berger <stefanb@...ux.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-integrity@...r.kernel.org
Cc:     sudhakar@...ux.ibm.com, erichte@...ux.ibm.com,
        gregkh@...uxfoundation.org, nayna@...ux.ibm.com, npiggin@...il.com,
        linux-kernel@...r.kernel.org, zohar@...ux.ibm.com,
        gjoyce@...ux.ibm.com, ruscur@...sell.cc, joel@....id.au,
        bgray@...ux.ibm.com, brking@...ux.ibm.com, gcwilson@...ux.ibm.com
Subject: Re: [PATCH v6 24/26] powerpc/pseries: Implement secvars for dynamic
 secure boot

Andrew Donnellan <ajd@...ux.ibm.com> writes:
> On Fri, 2023-02-10 at 16:28 -0500, Stefan Berger wrote:
>> > > +err:
>> > > +    kfree(var.data);
>> > 
>> > remove the kfree()
>> 
>> Actually don't remove it but it should probably be
>> 
>> if (var.data != &version)
>>      kfree(var.data);
>> 
>
> Argh, thanks for catching this.
>
> I don't think the condition is needed - we can assume the var.data is
> unmodified.
>
> mpe, are you able to fix this up in merge?

Yeah, can you reply here with the delta you want applied.

cheers