Bug: Containerd.io 1.7.24-1 | unix opening TUN device file: operation not permitted

[Phil57]

Is this urgent?

Yes

Host OS

Ubuntu 24.04

CPU arch

x86_64

VPN service provider

AirVPN

What are you using to run the container

docker-compose

What is the version of Gluetun

3.39.1

What's the problem 🤔

Hello,

Following an update of containerd.io from version 1.7.23-1 to 1.7.24-1, Gluetun doesn't start anymore.
Downgrading to 1.7.23-1 fixes the issue.

Someone opened a bug report for containerd, but I don't know if meanwhile you can circumvent the issue or post a warning somewhere.
containerd/containerd#11078

Share your logs (at least 10 lines)

gluetun_proxy  | 2024-11-30T10:47:17+01:00 INFO TUN device is not available: open /dev/net/tun: no such file or directory; creating it...
gluetun_proxy  | 2024-11-30T10:47:17+01:00 INFO [routing] routing cleanup...
gluetun_proxy  | 2024-11-30T10:47:17+01:00 INFO [routing] default route found: interface eth0, gateway 172.20.0.1, assigned IP 172.20.0.2 and family v4
gluetun_proxy  | 2024-11-30T10:47:17+01:00 INFO [routing] deleting route for 0.0.0.0/0
gluetun_proxy  | 2024-11-30T10:47:17+01:00 ERROR creating tun device: unix opening TUN device file: operation not permitted

Share your configuration

No response

[github-actions]

@qdm12 is more or less the only maintainer of this project and works on it in his free time.
Please:

• do not ask for updates, be patient
• 👍 the issue to show your support instead of commenting
  @qdm12 usually checks issues at least once a week, if this is a new urgent bug,
  revert to an older tagged container image

[dojoca]

Same problem here:
2024-11-30T20:07:06+08:00 ERROR creating tun device: unix opening TUN device file: operation not permitted

Seems to be related to a recent update - I installed containerd.io 1.7.24-1.

[dojoca]

Interim fix - I downgraded containerd.io to 1.7.23-1, it's resolved the issue.

sudo apt-get install containerd.io=1.7.23-1

[saltydk]

Or just mount /dev/net/tun into the container, that works fine with 1.7.24