Re: Recent bubblewrap security upgrade causing a build failure

["'MOESSBAUER, Felix' via isar-users" <isar-users@googlegroups.com>]

On Fri, 2026-08-28 at 05:23 -0700, 'Ulrich Teichert' via isar-users
wrote:
> Hi,
> 
> I just hit a build failure like:
> 
> ...
> | DEBUG: Executing shell function rootfs_install_pkgs_download
> | bwrap: Can't mount on symlink destination /bin
> | WARNING: exit code 1 from a shell command.
> | DEBUG: Executing shell function rootfs_do_umounts
> ...
> 
> That's caused by the security upgrade from bubblewrap 0.11.0 to 0.12.0,
> which at least Debian has active right now. To get my build going again,
> downgrading to 0.11.0 was enough. Of course, that doesn't help in the
> long run, but it saved my friday afternoon....

Thanks for reporting and the root cause analysis. Luckily the just
released kas 5.5 has bubblewrap 0.11.0-2+deb13u1, hence is not
affected.

But fixing this is probably not easy :/ Maybe Cedric can have a look,
as he wrote the corresponding logic.

Best regards,
Felix

> 
> HTH,
> Uli
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