more vm socket isolation

Bugs: me
Test: build
Change-Id: Ie34ac041f1234891043098a4decf05ec7a9e6761
diff --git a/private/virtualizationmanager.te b/private/virtualizationmanager.te
index 72cc0a6..9b3cfcf 100644
--- a/private/virtualizationmanager.te
+++ b/private/virtualizationmanager.te
@@ -61,6 +61,7 @@
 
 # Let virtualizationmanager to accept vsock connection from the guest VMs
 allow virtualizationmanager self:vsock_socket { create_socket_perms_no_ioctl listen accept };
+neverallow { domain -virtualizationmanager } virtualizationmanager:vsock_socket { accept bind create connect listen };
 
 # Allow virtualizationmanager to inspect all hypervisor capabilities.
 get_prop(virtualizationmanager, hypervisor_prop)