CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC USB hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 16:34:19 +0000 (16:34 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 16:00:09 +0000 (16:00 +0000)
commita6e9270ec79924fabd5a872984bb5d38eaf3df8a
tree1933025352906235cf6afb976ace1344ab12b0eb
parenteae2a2ada81c5828991bb1b9438f7556a7e51ce8
CVE-2013-6456: Avoid unsafe use of /proc/$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