Incorrect ownership set on /dev/vport0p1 on RHEV guests, preventing guest agent from starting

[root@rhel7system ~]# tail  /var/log/ovirt-guest-agent/ovirt-guest-agent.log
OSError: [Errno 13] Permission denied: '/dev/virtio-ports/com.redhat.rhevm.vdsm'
MainThread::INFO::2015-09-17 10:48:36,098::ovirt-guest-agent::57::root::Starting oVirt guest agent
MainThread::ERROR::2015-09-17 10:48:36,099::ovirt-guest-agent::138::root::Unhandled exception in oVirt guest agent!
Traceback (most recent call last):
  File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 132, in <module>
    agent.run(daemon, pidfile)
  File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 63, in run
    self.agent = LinuxVdsAgent(config)
  File "/usr/share/ovirt-guest-agent/GuestAgentLinux2.py", line 371, in __init__
    AgentLogicBase.__init__(self, config)
  File "/usr/share/ovirt-guest-agent/OVirtAgentLogic.py", line 171, in __init__
    self.vio = VirtIoChannel(config.get("virtio", "device"))
  File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 150, in __init__
    self._stream = VirtIoStream(vport_name)
  File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 131, in __init__
    self._vport = os.open(vport_name, os.O_RDWR)
OSError: [Errno 13] Permission denied: '/dev/virtio-ports/com.redhat.rhevm.vdsm'

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux Server release 7.1 (Maipo)
rhevm-guest-agent-common-1.0.10-2.el7.noarch 

How reproducible:
Intermittent

Steps to Reproduce:
1. Create RHEL 7.1 guest on RHEV
2. Start ovirt-guest-agent on guest

Actual results:
Failure to start with traceback shown above. 

Expected results:
successful agent start

Additional info:
This can be worked around by manually changing the ownership of /dev/vport0p1 to ovirtagent:ovirtagent instead of root:root