| 2013-10-30 20:21:48 |
Serge Hallyn |
description |
Upgraded a 13.04 64 bit to 13.10. Before the upgrade, I had KVM guest with usb devices working well. Since the upgrade, apparmor blocks access to usb devices with the following errors :
Oct 27 14:17:29 laptop kernel: [ 5771.844806] type=1400 audit(1382897849.445:339): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844847] type=1400 audit(1382897849.445:340): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844947] type=1400 audit(1382897849.445:341): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844967] type=1400 audit(1382897849.445:342): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.845051] type=1400 audit(1382897849.445:343): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.845069] type=1400 audit(1382897849.445:344): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
The profile looks fine :
/etc/apparmor.d/libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee:
#
# This profile is for the domain whose UUID matches this file.
#
#include <tunables/global>
profile libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee {
#include <abstractions/libvirt-qemu>
#include <libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee.files>
}
/etc/apparmor.d/libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee.files:
# DO NOT EDIT THIS FILE DIRECTLY. IT IS MANAGED BY LIBVIRT.
"/var/log/libvirt/**/windows-xp.log" w,
"/var/lib/libvirt/**/windows-xp.monitor" rw,
"/var/run/libvirt/**/windows-xp.pid" rwk,
"/run/libvirt/**/windows-xp.pid" rwk,
"/var/run/libvirt/**/*.tunnelmigrate.dest.windows-xp" rw,
"/run/libvirt/**/*.tunnelmigrate.dest.windows-xp" rw,
"/home/vm/windowsxp.img" rw,
"/dev/bus/usb/002/012" rw,
"/dev/bus/usb/002/011" rw,
"/dev/bus/usb/002/007" rw, |
=============================
SRU Justification:
1. Impact: usb devices can't be used under libvirt kvm guests
2. Development fix: allow libvirt to have read access to some information it now insists on having.
3. Stable fix: cherrypick of dev fix
4. Test case: create a libvirt VM with a usb device passed from the host
5. Regression potential: This allows libvirt to see a bit more host system information, however the security team sees no problem with it.
==============================
Upgraded a 13.04 64 bit to 13.10. Before the upgrade, I had KVM guest with usb devices working well. Since the upgrade, apparmor blocks access to usb devices with the following errors :
Oct 27 14:17:29 laptop kernel: [ 5771.844806] type=1400 audit(1382897849.445:339): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844847] type=1400 audit(1382897849.445:340): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844947] type=1400 audit(1382897849.445:341): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.844967] type=1400 audit(1382897849.445:342): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.845051] type=1400 audit(1382897849.445:343): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/bus/usb/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
Oct 27 14:17:29 laptop kernel: [ 5771.845069] type=1400 audit(1382897849.445:344): apparmor="DENIED" operation="open" parent=1 profile="libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee" name="/dev/" pid=12253 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=119 ouid=0
The profile looks fine :
/etc/apparmor.d/libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee:
#
# This profile is for the domain whose UUID matches this file.
#
#include <tunables/global>
profile libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee {
#include <abstractions/libvirt-qemu>
#include <libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee.files>
}
/etc/apparmor.d/libvirt/libvirt-655920dd-7b6f-f20b-bb77-b5bbaa133eee.files:
# DO NOT EDIT THIS FILE DIRECTLY. IT IS MANAGED BY LIBVIRT.
"/var/log/libvirt/**/windows-xp.log" w,
"/var/lib/libvirt/**/windows-xp.monitor" rw,
"/var/run/libvirt/**/windows-xp.pid" rwk,
"/run/libvirt/**/windows-xp.pid" rwk,
"/var/run/libvirt/**/*.tunnelmigrate.dest.windows-xp" rw,
"/run/libvirt/**/*.tunnelmigrate.dest.windows-xp" rw,
"/home/vm/windowsxp.img" rw,
"/dev/bus/usb/002/012" rw,
"/dev/bus/usb/002/011" rw,
"/dev/bus/usb/002/007" rw, |
|
