Test against latest 6.3 kernel

[JonathonReinhart]

These commits caught my eye:

• torvalds/linux@6b754d7bd007
• torvalds/linux@4ecb90090c84

[JensErat]

I don't know what kernels you ran against, but with 5.15 (Ubuntu 20.04, HWE kernel) and 6.5 (Ubuntu 22.04) I get this message:

Parent net namespace modified!
~ net/netfilter/nf_hooks_lwtunnel: 0 -> 1

This happens exactly on one run, given

If this option is enabled, the lightweight tunnel netfilter hooks are enabled. This option cannot be disabled once it is enabled.

[jeremy-code]

I too get that message. Kernel: Linux 6.8.0-1021-oracle, Distro: Ubuntu 24.04.2

Parent net namespace modified!
~ net/netfilter/nf_hooks_lwtunnel: 0 -> 1