CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC disk hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 15:59:20 +0000 (15:59 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 13:15:49 +0000 (13:15 +0000)
commit51a897a22e1c031edd46fd077487a2f8e649cb9f
treed87f912cf30e103210f42ee4ca005e71c98e51fc
parentad52184399aa414fa3d7e2756e4ea6a45ec0d3a3
CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC disk hotplug

Rewrite lxcDomainAttachDeviceDiskLive function to use the
virProcessRunInMountNamespace helper. This avoids risk of
a malicious guest replacing /dev with a absolute symlink,
tricking the driver into changing the host OS filesystem.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 4dd3a7d5bc44980135a1b11810ba9aeab42a4a59)
src/lxc/lxc_driver.c