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Re: [libvirt] [PATCH] Fix starting qemu instances when apparmor driver is enabled



Guannan Ren wrote:
> On 03/01/2013 08:37 AM, Jim Fehlig wrote:
>> Eric Blake wrote:
>>> On 02/27/2013 04:51 PM, Jim Fehlig wrote:
>>>   
>>>> With the apparmor security driver enabled, qemu instances fail
>>>> to start
>>>>
>>>> # grep ^security_driver /etc/libvirt/qemu.conf
>>>> security_driver = "apparmor"
>>>> # virsh start test-kvm
>>>> error: Failed to start domain test-kvm
>>>> error: internal error security label already defined for VM
>>>>
>>>> The model field of virSecurityLabelDef object is always populated
>>>> by virDomainDefGetSecurityLabelDef(), so remove the check for a
>>>> NULL model when verifying if a label is already defined for the
>>>> instance.
>>>>
>>>> Checking for a NULL model and populating it later in
>>>> AppArmorGenSecurityLabel() has been left in the code to be
>>>> consistent with virSecuritySELinuxGenSecurityLabel().
>>>> ---
>>>>   src/security/security_apparmor.c | 6 ++----
>>>>   1 file changed, 2 insertions(+), 4 deletions(-)
>>>>      
>>> ACK; and safe for 1.0.3.
>>>    
>> Thanks, pushed now.
>>
>> -- 
>> libvir-list mailing list
>> libvir-list redhat com
>> https://www.redhat.com/mailman/listinfo/libvir-list
>
>     Hi Jim
>
>        In selinux, libvirt added a label for tapfd.
>        Do you think this patch makes sense for apparmor?
> https://www.redhat.com/archives/libvir-list/2012-October/msg01461.html

Hi Gunannan,

Apologies for missing your initial post of that series.  I see that you
fixed this exact bug in 2/3 :(.

I think 3/3 does make sense for apparmor, but I'm not sure about using
AppArmorSetImageFDLabel() as a common function.  It returns if
secdef->imagelabel == NULL, which would be incorrect if labeling a tap
fd right?

I promise not to miss the patch if you respin it :).

Regards,
Jim


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