linux-kernel - Re: [PATCH 3/3] tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations

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Message-ID: <20190926232225.GJ8171@sasha-vm>
Date:   Thu, 26 Sep 2019 19:22:25 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     linux-integrity@...r.kernel.org,
        Vadim Sukhomlinov <sukhomlinov@...gle.com>,
        stable@...r.kernel.org, Douglas Anderson <dianders@...omium.org>,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] tpm: Fix TPM 1.2 Shutdown sequence to prevent future
 TPM operations

On Wed, Sep 25, 2019 at 01:15:32PM +0300, Jarkko Sakkinen wrote:
>From: Vadim Sukhomlinov <sukhomlinov@...gle.com>
>
>commit db4d8cb9c9f2af71c4d087817160d866ed572cc9 upstream
>
>TPM 2.0 Shutdown involve sending TPM2_Shutdown to TPM chip and disabling
>future TPM operations. TPM 1.2 behavior was different, future TPM
>operations weren't disabled, causing rare issues. This patch ensures
>that future TPM operations are disabled.
>
>Fixes: d1bd4a792d39 ("tpm: Issue a TPM2_Shutdown for TPM2 devices.")
>Cc: stable@...r.kernel.org
>Signed-off-by: Vadim Sukhomlinov <sukhomlinov@...gle.com>
>[dianders: resolved merge conflicts with mainline]
>Signed-off-by: Douglas Anderson <dianders@...omium.org>
>Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
>Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

I've queued it up for 4.19 and 4.14, thanks!

--
Thanks,
Sasha