On 11/3/22 05:13, Andrea Bolognani wrote:
Distros that use AppArmor, such as Debian and Ubuntu, install QEMU under /usr/bin/qemu-system-*, and our AppArmor profile is written with that assumption in mind.
If you try to run the RHEL or CentOS version of libvirt and QEMU inside a privileged container on such distros, however, that will result in an error, because the path /usr/libexec/qemu-kvm is used instead.
In particular, this prevents upstream KubeVirt releases (which are based on CentOS) from running on Debian/Ubuntu nodes. See
https://github.com/kubevirt/kubevirt/pull/8692
and the issues referenced therein for additional details.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> --- src/security/apparmor/usr.sbin.libvirtd.in | 4 ++++ src/security/apparmor/usr.sbin.virtqemud.in | 4 ++++ 2 files changed, 8 insertions(+)
diff --git a/src/security/apparmor/usr.sbin.libvirtd.in b/src/security/apparmor/usr.sbin.libvirtd.in index 886f1ad518..2994de5ec9 100644 --- a/src/security/apparmor/usr.sbin.libvirtd.in +++ b/src/security/apparmor/usr.sbin.libvirtd.in @@ -99,6 +99,10 @@ profile libvirtd @sbindir@/libvirtd flags=(attach_disconnected) { # read and run an ebtables script. /var/lib/libvirt/virtd* ixr,
+ # Needed when running the RHEL/CentOS version of libvirt and QEMU + # inside a privileged container on a Debian/Ubuntu host + /usr/libexec/qemu-kvm PUx,
Based on the comment, agree this should be explicit vs @libexecdir@/qemu-kvm PUx,
+ # force the use of virt-aa-helper audit deny /{usr/,}sbin/apparmor_parser rwxl, audit deny /etc/apparmor.d/libvirt/** wxl, diff --git a/src/security/apparmor/usr.sbin.virtqemud.in b/src/security/apparmor/usr.sbin.virtqemud.in index 3de03d49fc..b3f33b9471 100644 --- a/src/security/apparmor/usr.sbin.virtqemud.in +++ b/src/security/apparmor/usr.sbin.virtqemud.in @@ -94,6 +94,10 @@ profile virtqemud @sbindir@/virtqemud flags=(attach_disconnected) { # read and run an ebtables script. /var/lib/libvirt/virtd* ixr,
+ # Needed when running the RHEL/CentOS version of libvirt and QEMU + # inside a privileged container on a Debian/Ubuntu host + /usr/libexec/qemu-kvm PUx, + # force the use of virt-aa-helper audit deny /{usr/,}sbin/apparmor_parser rwxl, audit deny /etc/apparmor.d/libvirt/** wxl,
Do you also need the path in src/security/apparmor/libvirt-qemu? Regards, Jim