Tinc vs. Systemd Hardening: Could not open /dev/net/tun: No such file or directory

Hi, after I updated this morning my tinc vpn setup stopped working. Journal: ... Jan 12 15:19:15 muckefuck tincd[23111]: tincd 1.0.36 starting, debug level 0 Jan 12 15:19:15 muckefuck tincd[23111]: Could not open /dev/net/tun: No such file or directory Jan 12 15:19:15 muckefuck tincd[23111]: Terminating ... After poking around a bit I found that the tinc.service file sets PrivateDevices=true as part of the Systemd hardening effort (bsc#1181400) If I set it to false tinc can access /dev/net/tun. Why is this failing only now? The tinc Package was last changed a year ago. Is it safe to set PrivateDevices=false or is there another way? cheers Wonko