rhel6/7: kvm live migration failed with the "Permission denied" error on a disk

Issue

When trying to live migrate a guest between RHEL6.5 KVM hosts, the following error occurred and the live migration failed.

  /var/log/libvirt/qemu/<host>.log on the destination host:
  ----
  2016-05-01 12:41:13.118+0000: starting up
  LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin \char device redirected to /dev/pts/11
  qemu-kvm: could not open disk image /dev/disk/by-id/scsi-3600000[..]0000: Permission denied
  qemu: re-open of /dev/disk/by-id/scsi-360000[..]0000 failed wth error -13
  reopening of drives failed
  2016-05-01 12:41:15.123+0000: shutting down

The guest's XML file:

    </disk>
    <disk type='block' device='lun' sgio='unfiltered'>
      <driver name='qemu' type='raw' cache='none'/>
      <source dev='/dev/disk/by-id/scsi-360000[..]0000'/>
      <target dev='sdb' bus='scsi'/>
      <shareable/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>

The disk /dev/disk/by-id/scsi-3600000[..]0000 is assigned as /dev/sdac on host-dest and we could not find any errors or anything unusual with the disk from sosreport.