CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC USB hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 16:34:19 +0000 (16:34 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 16:38:12 +0000 (16:38 +0000)
commit1d1daaf58677cfa843b6891a98dc6cdb42116434
tree468e231279055cdbf120cca6fad9dc78ce1fbb34
parent80f57ec4224af65392db09fb8f47be7434e2fc86
CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC USB hotplug

Rewrite lxcDomainAttachDeviceHostdevSubsysUSBLive 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 7fba01c15c1f886b4235825692b4c13e88dd9f7b)
src/lxc/lxc_driver.c