I should add that I have a good reproducer for this:
https://bugzilla.redhat.com/show_bug.cgi?id=769359#c5
I have run libguestfs built with and without these patches on RHEL 6.3
and demonstrated that the reproducer only fails on the unpatched
libguestfs.
Rich.
--
Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages.
http://libguestfs.org