Bug#1022202: linux: rebuild upgrades of running kernel breaks module loading

[Salvatore Bonaccorso <carnil@debian.org>]

Control: forcemerge 1003210 -1 

Hi Christian,

On Fri, Oct 21, 2022 at 10:40:22PM +0200, Christian Göttsche wrote:
> source: linux
> version: 6.0.2-1+b1
> severity: important
> 
> Upgrading the package of the currently running kernel, e.g. for
> rebuilds like 6.0.2-1+b1, breaks module loading until the next reboot.
> Trying to load modules by applications, e.g. qemu, will fail:
> 
> Oct 21 22:23:23 debianHome kernel: BPF:          type_id=1457 bits_offset=0
> Oct 21 22:23:23 debianHome kernel: BPF:
> Oct 21 22:23:23 debianHome kernel: BPF: Invalid name
> Oct 21 22:23:23 debianHome kernel: BPF:
> Oct 21 22:23:23 debianHome kernel: failed to validate module [tun] BTF: -22
> 
> Maybe this is hard to fix, due to signature changes, so maybe the
> postinst should print a strong reboot recommendation?

I'm going to merge this with the related #1003210 .

Regards,
Salvatore