[PATCH] apparmor: Add denied capabilities

Neal Gompa ngompa13 at gmail.com
Tue Jun 8 19:43:53 UTC 2021


On Tue, Jun 8, 2021 at 1:35 PM Jim Fehlig <jfehlig at suse.com> wrote:
>
> On 6/7/21 5:43 PM, Neal Gompa wrote:
> > On Mon, Jun 7, 2021 at 6:34 PM Jim Fehlig <jfehlig at suse.com> wrote:
> >>
> >> 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
> >>
> >>
> >
> > The patch LGTM, but the title is confusing. Maybe the following?
> >
> > "apparmor: Permit new capabilities required by libvirt"
>
> Reading again, I agree it is poorly worded. I used your suggestion, but
> s/libvirt/libvirtd/.
>

Works for me.

-- 
真実はいつも一つ!/ Always, there's only one truth!





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