Re: Regression update for libvirt in bullseye?

[Utkarsh Gupta <guptautkarsh2102@gmail.com>]

Hi Ben,

On Wed, Jan 7, 2026 at 8:50 PM Ben Hutchings <ben@decadent.org.uk> wrote:
> The latest update to src:linux for bullseye (DLA 4404-1) caused a
> regression for libvirt (#1124549).  This is due to libvirt passing a
> previously undefined flag to netlink that is now checked and rejected.
> This was fixed in libvirt 7.1.0 (upstream commit 81334002340b) so is not
> present in later Debian releases.
>
> Since the kernel change was originally made back in 2022, I don't think
> we're going to see a workaround added for the libvirt bug now.  So I
> propose to reassign this bug to libvirt and apply the upstream fix
> there.  It is a trivial patch and I have already tested that it fixes
> the issue.
>
> Let me know soon if you have any objections to this.

I can take that up and prepare the package. I'll test it and will get
back to you if something feels odd.


- u