Kernel panic and boot loop when setting a vlan's parent to itself

[arnog]

Hi all,

during a lab session my students created a new VLAN with parent set to LAN. Then they modified the VLAN settings and chose the VLAN itself as the VLAN's parent. When clicking "Apply" OPNsense crashes immediately with a kernel panic and reboots after some time.

Since the configuration has been saved, OPNsense now crashes on each subsequent reboot causing a boot loop and making OPNsense unusable. I had to boot into single user mode and replace the configuration with a known good one to be able to get it back up and running.

This is on a Deciso DEC2685 running OPNsense 23.1.5_2-amd64.

Thanks
Arno

P.S.: I know that this setting doesn't make sense and probably not a lot of people tried that before, but since my students ran into it, it makes sense to me to report this issue.

[Patrick M. Hausen]

Please open an issue on github.

[arnog]

Done.

[franco]

Thanks, fix is https://github.com/opnsense/core/commit/e9dc6875532f

# opnsense-patch e9dc6875532f

Too late for today's 23.1.6 but will be in 23.1.7.


Cheers,
Franco

[Cristian]

Thanks
Cristian

[Cristian]

Hello,
I have install the patch but I optain the same result (crasch).
Ihave to do any other operation for fix it.
Thanks
Cristian

[franco]

But why make it crash in the first place after someone reported (for the first time) that it would do so?


Cheers,
Franco