diff -up usbguard-1.0.0/src/DBus/DBusBridge.cpp.orig usbguard-1.0.0/src/DBus/DBusBridge.cpp
--- usbguard-1.0.0/src/DBus/DBusBridge.cpp.orig	2022-10-18 10:33:04.498762878 +0200
+++ usbguard-1.0.0/src/DBus/DBusBridge.cpp	2022-10-18 10:33:36.920785285 +0200
@@ -434,12 +434,11 @@ namespace usbguard
     USBGUARD_LOG(Trace) << "Connecting with Polkit authority...";
     PolkitAuthority* const authority = polkit_authority_get_sync(/*cancellable=*/ NULL, &error);
 
-    if (! authority || error) {
+    if (! authority) {
       USBGUARD_LOG(Trace) << "Failed to connect to Polkit authority: " << formatGError(error) << ".";
       *authErrorCode = G_DBUS_ERROR_AUTH_FAILED;
       *authErrorMessage = "Failed to connect to Polkit authority";
       g_error_free(error);
-      g_object_unref(authority);
       g_object_unref(subject);
       return false;
     }
@@ -470,12 +469,11 @@ namespace usbguard
         /*cancellable=*/ NULL,
         &error);
 
-    if (! result || error) {
+    if (! result) {
       USBGUARD_LOG(Trace) << "Failed to check back with Polkit for authoriation: " << formatGError(error) << ".";
       *authErrorCode = G_DBUS_ERROR_AUTH_FAILED;
       *authErrorMessage = "Failed to check back with Polkit for authoriation.";
       g_error_free(error);
-      g_object_unref(result);
       g_object_unref(details);
       g_object_unref(authority);
       g_object_unref(subject);