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From: dwalsh@redhat.com (Daniel J Walsh)
To: refpolicy@oss.tresys.com
Subject: [refpolicy] kernel_devices.patch
Date: Mon, 07 Jun 2010 09:23:59 -0400	[thread overview]
Message-ID: <4C0CF2EF.4090909@redhat.com> (raw)
In-Reply-To: <1275916842.809.90.camel@gorn.columbia.tresys.com>

On 06/07/2010 09:20 AM, Christopher J. PeBenito wrote:
> On Wed, 2010-06-02 at 16:19 -0400, Daniel J Walsh wrote:
>> http://people.fedoraproject.org/~dwalsh/SELinux/F14/kernel_devices.patch
>>
>> vhost_device_t added for libvirt/qemu
>>
>> /dev/usbmon device added
>>
>> Added default label for /sys so libvirt could relabel to it.
>
> I don't understand this.  There should be no files labeled sysfs_t,
> except for the entries created by the kernel on the fs itself, which get
> the right label already.
>
>> lots of new interfaces.
>
> Otherwise merged.
>
libvirt currently does the equivalent of

chcon svirt_t:MCS1 DEVICE
Run QEMU
restorecon DEVICE

If /sys is <<none>> then it does not have a label to change the context 
back to.  And leaves the context with a label svirt_t:MCS1.  If it later 
picks an svirt_t:MCS1 for a different image, this /sys device is vulnerable.

  reply	other threads:[~2010-06-07 13:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-02 20:19 [refpolicy] kernel_devices.patch Daniel J Walsh
2010-06-07 13:20 ` Christopher J. PeBenito
2010-06-07 13:23   ` Daniel J Walsh [this message]
2010-06-07 13:39     ` Christopher J. PeBenito
2010-06-07 15:52       ` Daniel J Walsh
2010-06-07 17:42         ` Stephen Smalley
2010-06-07 18:00         ` Christopher J. PeBenito
2010-06-07 18:09           ` Stephen Smalley
  -- strict thread matches above, loose matches on Subject: below --
2010-08-26 22:46 Daniel J Walsh
2010-02-23 22:07 Daniel J Walsh
2010-03-04 20:30 ` Christopher J. PeBenito
2010-03-05 16:08   ` Daniel J Walsh
2009-11-12 20:58 Daniel J Walsh
2009-11-19 14:44 ` Christopher J. PeBenito
2009-05-21 15:17 Daniel J Walsh
2009-06-08 17:17 ` Christopher J. PeBenito
2009-03-04 21:32 Daniel J Walsh
2009-03-05 15:59 ` Christopher J. PeBenito
2009-03-05 17:27   ` Daniel J Walsh
2008-11-25 21:50 Daniel J Walsh

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