cannot run with network enabled in root network namespace: unknown

Bug #2120711 reported by Salman Mohammadi
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
golang-gvisor-gvisor (Debian)
New
Unknown
golang-gvisor-gvisor (Ubuntu)
New
Undecided
Unassigned

Bug Description

I get the following error on Ubuntu 25.04 (Plucky):

$ sudo docker run --runtime=runsc -it ubuntu dmesg

docker: Error response from daemon: OCI runtime start failed: starting container: setting up network: creating interfaces from net namespace "/proc/1451/ns/net": cannot run with network enabled in root network namespace: unknown.

I have no problem either on Ubuntu 24.04 or when I use the upstream runsc on Ubuntu 25.04

1) lsb_release -rd
Description: Ubuntu 25.04
Release: 25.04

2) apt-cache policy runsc
runsc:
  Installed: 0.0~20240729.0-4
  Candidate: 0.0~20240729.0-4
  Version table:
 *** 0.0~20240729.0-4 500
        500 http://archive.ubuntu.com/ubuntu plucky/universe amd64 Packages
        100 /var/lib/dpkg/status

Changed in golang-gvisor-gvisor (Debian):
status: Unknown → New
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