app: allow removing VM referencing only itself

Fixes QubesOS/qubes-issues#4224
2019-02-19 00:55:13 +01:00 · 2019-02-19 00:55:13 +01:00 · 27a0fe25ab
commit 27a0fe25ab
parent 7433f83581
1 changed files with 3 additions and 0 deletions
--- a/qubes/app.py
+++ b/qubes/app.py
@ -1366,6 +1366,9 @@ class Qubes(qubes.PropertyHolder):
    def on_domain_pre_deleted(self, event, vm):
        # pylint: disable=unused-argument
        for obj in itertools.chain(self.domains, (self,)):
+            if obj is vm:
+                # allow removed VM to reference itself
+                continue
            for prop in obj.property_list():
                try:
                    if isinstance(prop, qubes.vm.VMProperty) and \