From: Christoph Hellwig <hch@infradead.org>
To: Mimi Zohar <zohar@us.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>,
James Morris <jmorris@namei.org>,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
Randy Dunlap <randy.dunlap@oracle.com>,
safford@watson.ibm.com, sailer@watson.ibm.com,
Stephen Smalley <sds@tycho.nsa.gov>,
serue@linux.vnet.ibm.com, Al Viro <viro@ZenIV.linux.org.uk>,
Debora Velarde <debora@linux.vnet.ibm.com>,
Mimi Zohar <zohar@linux.vnet.ibm.com>,
Kenneth Goldman <kgold@watson.ibm.com>
Subject: Re: [PATCH 1/4] integrity: TPM internel kernel interface
Date: Tue, 12 Aug 2008 15:30:31 -0400 [thread overview]
Message-ID: <20080812193031.GD18034@infradead.org> (raw)
In-Reply-To: <OF9A2A62B8.D4E0AE57-ON852574A2.006CEDC6-852574A2.00749DAC@us.ibm.com>
On Mon, Aug 11, 2008 at 05:13:51PM -0400, Mimi Zohar wrote:
>
> I assume the concern here is that between looking up the chip and actually
>
> using the chip, the TPM chip is disabled/deactivated. Based on
> discussions
> with Kenneth Goldman, the TCG main specification part2: structures,
> require
> that even if the TPM is disabled/deactivated, the command to extend the
> PCR
> will succeed, but the command to read the PCR will fail with an
> appropriate
> error code.
And what happens when the chip simply goes away due to a hotplug action?
Or not even the actual chip goes away but just the chip driver and you
now dereference freed memory?
next prev parent reply other threads:[~2008-08-12 19:30 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080808184349.999902616@linux.vnet.ibm.com>
2008-08-08 18:55 ` [PATCH 1/4] integrity: TPM internel kernel interface Mimi Zohar
2008-08-09 18:46 ` Christoph Hellwig
2008-08-11 21:13 ` Mimi Zohar
2008-08-12 19:30 ` Christoph Hellwig [this message]
2008-08-12 20:57 ` Kenneth Goldman
2008-08-12 21:36 ` Alan Cox
2008-08-13 13:46 ` Kenneth Goldman
2008-08-13 13:40 ` Alan Cox
2008-08-13 14:45 ` Christoph Hellwig
2008-08-13 16:39 ` Kenneth Goldman
2008-08-12 23:16 ` Greg KH
2008-08-13 13:58 ` Kenneth Goldman
2008-08-13 16:56 ` Mimi Zohar
2008-08-14 11:12 ` Pavel Machek
2008-08-15 10:37 ` Peter Dolding
2008-08-15 18:50 ` Kenneth Goldman
2008-08-15 19:22 ` Valdis.Kletnieks
2008-08-15 21:17 ` Alan Cox
2008-08-18 15:01 ` Kenneth Goldman
2008-08-08 18:55 ` [PATCH 2/4] integrity: special fs magic Mimi Zohar
2008-08-08 19:04 ` Greg KH
2008-08-08 19:15 ` Greg KH
2008-08-08 19:50 ` Mimi Zohar
2008-08-08 23:07 ` Greg KH
2008-08-09 18:47 ` Christoph Hellwig
2008-08-10 13:48 ` Mimi Zohar
2008-08-08 19:36 ` Mimi Zohar
2008-08-08 23:15 ` Christoph Hellwig
2008-08-08 18:56 ` [PATCH 3/4] integrity: Linux Integrity Module(LIM) Mimi Zohar
2008-08-09 18:53 ` Christoph Hellwig
2008-08-10 13:52 ` Mimi Zohar
2008-08-11 17:02 ` Serge E. Hallyn
2008-08-11 19:08 ` Mimi Zohar
2008-08-11 19:56 ` Serge E. Hallyn
2008-08-12 8:41 ` Peter Dolding
2008-08-12 19:29 ` Christoph Hellwig
2008-08-13 10:44 ` Peter Dolding
2008-08-13 14:11 ` David Howells
2008-08-13 22:57 ` Peter Dolding
2008-08-13 17:03 ` Mimi Zohar
2008-08-12 19:27 ` Christoph Hellwig
2008-08-12 21:19 ` Serge E. Hallyn
2008-08-13 17:03 ` Mimi Zohar
2008-08-12 19:25 ` Christoph Hellwig
2008-08-08 18:56 ` [PATCH 4/4] integrity: IMA as an integrity service provider Mimi Zohar
2008-08-08 20:06 ` Randy Dunlap
2008-10-07 18:00 [PATCH 0/4] integrity Mimi Zohar
2008-10-07 18:00 ` [PATCH 1/4] integrity: TPM internel kernel interface Mimi Zohar
2008-10-08 5:00 ` James Morris
2008-10-08 13:33 ` Rajiv Andrade
-- strict thread matches above, loose matches on Subject: below --
2008-11-13 3:47 [PATCH 0/4] integrity Mimi Zohar
2008-11-13 3:47 ` [PATCH 1/4] integrity: TPM internel kernel interface Mimi Zohar
2008-11-20 16:43 [PATCH 0/4] integrity Mimi Zohar
2008-11-20 16:43 ` [PATCH 1/4] integrity: TPM internel kernel interface Mimi Zohar
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