Package: libvirt Version: 6.9.0-4 Hi, as reported to upstream in [1] use cases with snapshots or base-images that use qcow files with a backing chain will fail to hot attach e.g. via `virsh attach-device`. Details and steps to reproduce in [1].
The reason is that apparmor in libvirt does not iterate over those backing chains which was fixed in [2]. I'd ask to fix/avoid this issue by applying that change for the most recent Debian version. [1]: https://gitlab.com/libvirt/libvirt/-/issues/118 [2]: https://gitlab.com/libvirt/libvirt/-/commit/d51ad0008dc2df0257f69e767ab3e3c5fd1457ff -- Christian Ehrhardt Staff Engineer, Ubuntu Server Canonical Ltd
