Description of problem:
On SLES-12 machine, if we try to delete the disk image through virsh vol-delete command immediately for vm which is provisioned through virt-manager, getting "cannot unlink file 'XXX': Permission denied" error. 
This error occurs only for disk which gets created while provisioning the vm.
If we delete the same disk through virt-manager then it gets deleted properly. 

If we create another disk through virt-manager and delete by using above virsh command,it gets deleted properly.

To summarize, problem is only for deleting disk which is created as part of provisioning VM.
 
Version-Release number of selected component (if applicable):

OS:SUSE Linux Enterprise Server 12 SP1  (x86_64)

Libvirt Version:
cv-hj-kvmlib01-am02:/var/lib/libvirt/images # virsh version
Compiled against library: libvirt 1.3.1
Using library: libvirt 1.3.1
Using API: QEMU 1.3.1
Running hypervisor: QEMU 2.3.1


How reproducible:

Steps to Reproduce:
1. Provision the vm through virt-manager on SLES_12
2. Delete the disk image which is created while provisioning the vm using virsh command line:
virsh # vol-delete /var/lib/libvirt/images/<file name>.qcow2
error: Failed to delete vol /var/lib/libvirt/images/<file name>.qcow2
error: cannot unlink file '/var/lib/libvirt/images/<file name>.qcow2': Permission denied

Actual results:
Getting "cannot unlink file 'XXX': Permission denied" error.


Expected results:
Disk image should get deleted without any error.


Additional info: