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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>,
	linux-security-module@vger.kernel.org, stable@vger.kernel.org,
	Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] tpm: fix response size validation in tpm_get_random()
Date: Wed, 5 Sep 2018 14:12:56 +0300	[thread overview]
Message-ID: <20180905111256.GA9696@linux.intel.com> (raw)
In-Reply-To: <20180903011004.12161-1-jarkko.sakkinen@linux.intel.com>

On Mon, Sep 03, 2018 at 04:10:04AM +0300, Jarkko Sakkinen wrote:
> When checking whether the response is large enough to be able to contain
> the received random bytes in tpm_get_random() and tpm2_get_random(),
> they fail to take account the header size, which should be added to the
> minimum size. This commit fixes this issue.
> 
> Cc: stable@vger.kernel.org
> Fixes: c659af78eb7b ("tpm: Check size of response before accessing data")
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

Stefan, you did the original commit. Does this look right to you?

/Jarkko

WARNING: multiple messages have this Message-ID (diff)
From: jarkko.sakkinen@linux.intel.com (Jarkko Sakkinen)
To: linux-security-module@vger.kernel.org
Subject: [PATCH] tpm: fix response size validation in tpm_get_random()
Date: Wed, 5 Sep 2018 14:12:56 +0300	[thread overview]
Message-ID: <20180905111256.GA9696@linux.intel.com> (raw)
In-Reply-To: <20180903011004.12161-1-jarkko.sakkinen@linux.intel.com>

On Mon, Sep 03, 2018 at 04:10:04AM +0300, Jarkko Sakkinen wrote:
> When checking whether the response is large enough to be able to contain
> the received random bytes in tpm_get_random() and tpm2_get_random(),
> they fail to take account the header size, which should be added to the
> minimum size. This commit fixes this issue.
> 
> Cc: stable at vger.kernel.org
> Fixes: c659af78eb7b ("tpm: Check size of response before accessing data")
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

Stefan, you did the original commit. Does this look right to you?

/Jarkko

  reply	other threads:[~2018-09-05 11:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-03  1:10 [PATCH] tpm: fix response size validation in tpm_get_random() Jarkko Sakkinen
2018-09-03  1:10 ` Jarkko Sakkinen
2018-09-05 11:12 ` Jarkko Sakkinen [this message]
2018-09-05 11:12   ` Jarkko Sakkinen
2018-09-05 13:16 ` Stefan Berger
2018-09-05 13:16   ` Stefan Berger
2019-01-16 22:35 Jarkko Sakkinen

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