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https://bugzilla.redhat.com/show_bug.cgi?id=1233003 Although perhaps bordering on a don't do that type scenario, if someone creates a volume in a pool outside of libvirt, then uses that same name to create a volume in the pool via libvirt, then the creation will fail and in some cases cause the same name volume to be deleted. This patch will refresh the pool just prior to checking whether the named volume exists prior to creating the volume in the pool. While it's still possible to have a timing window to create a file after the check - at least we tried. At that point, someone is being malicious.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>