Comment 16 for bug 2038894

I have verified the fix using systemd-resolved 253.5-1ubuntu6.1 from mantic-proposed:

root@mantic:~# apt policy systemd-resolved
systemd-resolved:
  Installed: 253.5-1ubuntu6.1
  Candidate: 253.5-1ubuntu6.1
  Version table:
 *** 253.5-1ubuntu6.1 500
        500 http://security.ubuntu.com/ubuntu mantic-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     253.5-1ubuntu6 500
        500 http://archive.ubuntu.com/ubuntu mantic/main amd64 Packages
root@mantic:~# ss --listening --no-header --tcp --udp --numeric
udp UNCONN 0 0 127.0.0.54:53 0.0.0.0:*
udp UNCONN 0 0 127.0.0.53%lo:53 0.0.0.0:*
udp UNCONN 0 0 10.19.111.15%eth0:68 0.0.0.0:*
udp UNCONN 0 0 [fe80::216:3eff:feb4:d412]%eth0:546 [::]:*
tcp LISTEN 0 4096 127.0.0.54:53 0.0.0.0:*
tcp LISTEN 0 4096 127.0.0.53%lo:53 0.0.0.0:*
root@mantic:~# lsof -i -n -P
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd-n 844 systemd-network 17u IPv4 1737561 0t0 UDP 10.19.111.15:68
systemd-n 844 systemd-network 20u IPv6 1738516 0t0 UDP [fe80::216:3eff:feb4:d412]:546
systemd-r 1363 systemd-resolve 13u IPv4 1743909 0t0 UDP 127.0.0.53:53
systemd-r 1363 systemd-resolve 14u IPv4 1743910 0t0 TCP 127.0.0.53:53 (LISTEN)
systemd-r 1363 systemd-resolve 15u IPv4 1743911 0t0 UDP 127.0.0.54:53
systemd-r 1363 systemd-resolve 16u IPv4 1743912 0t0 TCP 127.0.0.54:53 (LISTEN)
root@mantic:~# resolvectl
Global
         Protocols: -LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
  resolv.conf mode: stub

Link 30 (eth0)
    Current Scopes: DNS
         Protocols: +DefaultRoute -LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
       DNS Servers: 10.19.111.1 fe80::216:3eff:fe07:85b6
        DNS Domain: lxd