This fixes bug in commit bbe2aa627f621e6749af374b22856184d1f351dc Author: Daniel P. Berrangé <berrange(a)redhat.com&gt; Date: Thu Jul 26 17:24:30 2018 +0100 conf: simplify link from hostdev back to network device hostdevs have a link back to the original network device. This is fairly generic accepting any type of device, however, we don't intend to make use of this approach in future. It can thus be specialized to network devices. Reviewed-by: Cole Robinson <crobinso(a)redhat.com&gt; Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; which mistakenly deleted the assignment to the 'net' variable, which meant we never invoked the network driver release callback Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/qemu/qemu_hotplug.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index bd8868b0f7..16070f2a57 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -4561,6 +4561,7 @@ qemuDomainRemoveHostDevice(virQEMUDriverPtr driver, } if (hostdev->parentnet) { + net = hostdev->parentnet; for (i = 0; i < vm->def->nnets; i++) { if (vm->def->nets[i] == hostdev->parentnet) { virDomainNetRemove(vm->def, i);