Handle and warn about network interfaces which are not attached to
any bridge because the user actively removed it from the VM config.

Signed-off-by: Christian Ebner <c.eb...@proxmox.com>
---
 PVE/QemuServer.pm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index c1d0fd2..3a6c120 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -8574,6 +8574,10 @@ sub add_nets_bridge_fdb {
        }
 
        my $bridge = $net->{bridge};
+       if (!$bridge) {
+           log_warn("Interface '$iface' not attached to any bridge.");
+           next;
+       }
        if ($have_sdn) {
            PVE::Network::SDN::Zones::add_bridge_fdb($iface, $mac, $bridge, 
$net->{firewall});
        } elsif (-d "/sys/class/net/$bridge/bridge") { # avoid fdb management 
with OVS for now
-- 
2.30.2



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