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From: Jarkko Sakkinen <jarkko@kernel.org>
To: Gunnar Kudrjavets <gunnarku@amazon.com>
Cc: graf@amazon.de, jgg@ziepe.ca, linux-integrity@vger.kernel.org,
	linux-kernel@vger.kernel.org, nh-open-source@amazon.com,
	peterhuewe@gmx.de, stable@vger.kernel.org, stefanb@linux.ibm.com,
	surenkj@amazon.com
Subject: Re: [PATCH] tpm: Disable TPM on null key name mismatch
Date: Thu, 24 Sep 2026 14:21:57 +0300	[thread overview]
Message-ID: <arUH1YndAAUSiMu0@kernel.org> (raw)
In-Reply-To: <20260918183507.9418-1-gunnarku@amazon.com>

On Fri, Sep 18, 2026 at 06:35:04PM +0000, Gunnar Kudrjavets wrote:
> On Fri, Sep 18, 2026 at 05:39:27AM +0300, Jarkko Sakkinen wrote:
> > On Fri, Sep 18, 2026 at 12:07:31AM +0000, Surendran Kanagaraj wrote:
> > > The null key name check exists to protect against TPM reset attacks, so
> > > a mismatch should stop the device from serving further requests.
> [...]
> > > Set rc to -ENODEV on the mismatch. The error path then disables the chip
> > > and returns the correct code to the caller.
> >
> > Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
> 
> We reviewed this internally as well.
> 
> Reviewed-by: Gunnar Kudrjavets <gunnarku@amazon.com>
> 

Thanks, I added your tag.

Br, Jarkko

      reply	other threads:[~2026-09-24 11:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-18  0:07 [PATCH] tpm: Disable TPM on null key name mismatch Surendran Kanagaraj
2026-09-18  2:39 ` Jarkko Sakkinen
2026-09-18 18:35   ` Gunnar Kudrjavets
2026-09-24 11:21     ` Jarkko Sakkinen [this message]

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