CVE-2013-6456: Avoid unsafe use of /proc/$PID/root in LXC disk hotplug
authorDaniel P. Berrange <berrange@redhat.com>
Thu, 30 Jan 2014 15:59:20 +0000 (15:59 +0000)
committerDaniel P. Berrange <berrange@redhat.com>
Tue, 18 Feb 2014 21:36:24 +0000 (21:36 +0000)
commitb2a853e1f6aea9683a30eafd2b069b8be0fcf898
tree5c3bfc75a7274645486d61f230bcb9d707998146
parentbd9ec4506e29a9ce682961eee99d0326ed64145d
CVE-2013-6456: Avoid unsafe use of /proc/$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)

Conflicts:
src/lxc/lxc_driver.c: OOM + cgroups error reporting and
        remove usernamespace integration
src/lxc/lxc_driver.c