[libvirt] [PATCH] apparmor: allow unix stream for p2p migrations

Christian Ehrhardt christian.ehrhardt at canonical.com
Tue Dec 19 13:13:06 UTC 2017

On live migration with --p2p like:
 $ virsh migrate --live --p2p kvmguest-bionic-normal \

We hit an apparmor deny like:
  apparmor="DENIED" operation="file_inherit"
  profile="/usr/sbin/libvirtd" pid=23477 comm="ssh" family="unix"
  sock_type="stream" protocol=0 requested_mask="send receive"
  denied_mask="send" addr=none peer_addr=none peer="unconfined"

The rule is not perfect, but can't be restricted further at the moment
(new upstream kernel features needed). For now the lack of a profile on the
peer as well as comm not being a conditional on rules do not allow to filter

Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
 examples/apparmor/usr.sbin.libvirtd | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/apparmor/usr.sbin.libvirtd b/examples/apparmor/usr.sbin.libvirtd
index 8d61d15..febe8a4 100644
--- a/examples/apparmor/usr.sbin.libvirtd
+++ b/examples/apparmor/usr.sbin.libvirtd
@@ -53,6 +53,9 @@
   network packet dgram,
   network packet raw,
+  # for --p2p migrations
+  unix (send, receive) type=stream addr=none peer=(label=unconfined addr=none),
   ptrace (trace) peer=unconfined,
   ptrace (trace) peer=/usr/sbin/libvirtd,
   ptrace (trace) peer=/usr/sbin/dnsmasq,

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