CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC disk hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 15:59:20 +0000 (15:59 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 16:00:09 +0000 (16:00 +0000)
commiteae2a2ada81c5828991bb1b9438f7556a7e51ce8
tree330e5657c9b5e97c251ecabfea38c12e5b501a40
parent21368274a9aa91e8a5f0addb3a6bba8dad91e334
CVE-2013-6456: Avoid unsafe use of /proc/$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