Comment 12 for bug 1896772

I have the same issue:

   systemd-resolved: Failed to save link data /run/systemd/resolve/netif/3: Permission denied

The netif folder is indeed owned by root. If I change the ownership to systemd-resolved and restart the service, there is no error but as soon as I reboot the system, the ownership is reverted to root and the error is back.

Also, I searched the log for other resolved messages and found the error below as well:

    nm-dispatcher[4641]: /etc/network/if-up.d/resolved: 12: mystatedir: not found