[PATCH] apparmor: Add denied capabilities

Jim Fehlig jfehlig at suse.com
Mon Jun 7 22:34:01 UTC 2021


The audit log contains the following denials from libvirtd

apparmor="DENIED" operation="capable" profile="libvirtd" pid=6012 comm="daemon-init" capability=17  capname="sys_rawio"
apparmor="DENIED" operation="capable" profile="libvirtd" pid=6012 comm="rpc-worker" capability=39  capname="bpf"
apparmor="DENIED" operation="capable" profile="libvirtd" pid=6012 comm="rpc-worker" capability=38  capname="perfmon"

Squelch the denials and allow the capabilities in the libvirtd
apparmor profile.

Signed-off-by: Jim Fehlig <jfehlig at suse.com>
---

I'm not really sure when these denials first started appearing, nor
have I noticed any problems they are causing. Likely I have not exercised
the affected functionality.

 src/security/apparmor/usr.sbin.libvirtd.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/security/apparmor/usr.sbin.libvirtd.in b/src/security/apparmor/usr.sbin.libvirtd.in
index bf4563e1e8..928782b709 100644
--- a/src/security/apparmor/usr.sbin.libvirtd.in
+++ b/src/security/apparmor/usr.sbin.libvirtd.in
@@ -25,6 +25,9 @@ profile libvirtd @sbindir@/libvirtd flags=(attach_disconnected) {
   capability fsetid,
   capability audit_write,
   capability ipc_lock,
+  capability sys_rawio,
+  capability bpf,
+  capability perfmon,
 
   # Needed for vfio
   capability sys_resource,
-- 
2.31.1





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