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https://bugzilla.redhat.com/show_bug.cgi?id=876828 Commit 38c4a9cc introduced a regression in hot unplugging of disks from qemu, where cgroup device ACLs were no longer being revoked (thankfully not a security hole: cgroup ACLs only prevent open() of the disk; so reverting the ACL prevents future abuse but doesn't stop abuse from an fd that was already opened before the ACL change). Commit 1b2ebf95 overlooked that there were two spots affected. * src/qemu/qemu_hotplug.c (qemuDomainDetachDiskDevice): Transfer backing chain before deletion. * src/qemu/qemu_driver.c (qemuDomainDetachDeviceDiskLive): Fix spacing (partly to ensure a different-looking patch).
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>