From: Mimi Zohar <zohar@linux.vnet.ibm.com>
To: David Howells <dhowells@redhat.com>
Cc: dwmw2@infradead.org, David Woodhouse <David.Woodhouse@intel.com>,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, keyrings@vger.kernel.org,
Petko Manolov <petkan@mip-labs.com>
Subject: Re: [RFC PATCH] X.509: Don't check the signature on apparently self-signed keys [ver #2]
Date: Wed, 06 Jan 2016 07:22:59 -0500 [thread overview]
Message-ID: <1452082979.2772.205.camel@linux.vnet.ibm.com> (raw)
In-Reply-To: <2615.1452011971@warthog.procyon.org.uk>
On Tue, 2016-01-05 at 16:39 +0000, David Howells wrote:
> Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:
>
> > You're missing Petko's patch:
> > 41c89b6 IMA: create machine owner and blacklist keyrings
>
> Hmmm... This is wrong. x509_key_preparse() shouldn't be polling the IMA MOK
> keyring under all circumstances.
The x509_validate_trust() was originally added for IMA to ensure, on a
secure boot system, a certificate chain of trust rooted in hardware.
The IMA MOK keyring extends this certificate chain of trust to the
running system.
The IMA MOK keyring is a build configuration option that defaults to
off.
Mimi
next prev parent reply other threads:[~2016-01-06 12:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 15:47 [RFC PATCH] X.509: Don't check the signature on apparently self-signed keys [ver #2] David Howells
2016-01-05 15:55 ` David Howells
2016-01-05 16:08 ` Mimi Zohar
2016-01-05 16:39 ` David Howells
2016-01-06 12:22 ` Mimi Zohar [this message]
2016-01-06 13:21 ` David Howells
2016-01-06 14:03 ` Mimi Zohar
2016-01-06 14:19 ` David Howells
2016-01-06 17:00 ` Petko Manolov
2016-01-05 16:40 ` David Howells
2016-01-05 17:00 ` Petko Manolov
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