CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC disk hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 15:59:20 +0000 (15:59 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 16:34:07 +0000 (16:34 +0000)
commitd5c0b57fffbe651c425b4de6c11712030cce7e7e
tree03648cf0832fbeff10aac3d279630d8f4989098c
parentfef343339127b989746214b86901553da6d17863
CVE-2013-6456: Avoid unsafe use of /proc/$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