linux-kernel - Re: [PATCH] tpm/tpm_crb: Avoid unaligned reads in crb

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Message-ID: <20190204114724.GB26799@linux.intel.com>
Date:   Mon, 4 Feb 2019 13:47:24 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        stable <stable@...r.kernel.org>,
        James Morris <jmorris@...ei.org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        Jerry Snitselaar <jsnitsel@...hat.com>
Subject: Re: [PATCH] tpm/tpm_crb: Avoid unaligned reads in crb_recv():

On Fri, Feb 01, 2019 at 09:49:05AM -0800, Linus Torvalds wrote:
> On Fri, Feb 1, 2019 at 3:33 AM Jarkko Sakkinen
> <jarkko.sakkinen@...ux.intel.com> wrote:
> >
> > Thus, it makes sense to fix this also in tpm_crb, not least because
> > the fix can be then backported to stable kernels and make them more robust
> > when compiled in differing environments.
> 
> Ack, looks sane to me, and should help both the backport and probably
> generate better code too.
> 
> In the meantime, I've committed the iomem.c change with a *long*
> commit message. For all we know, there might be other cases like this
> lurking somewhere else that just happened to work. Plus it's the right
> thing to do anyway.
> 
>                Linus

Great!

Umh, so, should my tpm_crb change committed to 5.0 with the minor changes
implemented suggested by Tomas or not? Can also include it to my 5.1 PR.
Either WFM.

/Jarkko