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e44bec2e34
The qemudDomainSaveFlag method will call EndJob on the 'vm' object it is passed in. This can result in the 'vm' object being free'd if the last reference is removed. Thus no caller of 'qemudDomainSaveFlag' must *ever* reference 'vm' again upon return. Unfortunately qemudDomainSave and qemuDomainManagedSave both call 'virDomainObjUnlock', which can result in a crash. This is non-deterministic since it involves a race with the monitor I/O thread. Fix this by making qemudDomainSaveFlag responsible for calling virDomainObjUnlock instead. * src/qemu/qemu_driver.c: Fix potential use after free when saving guests
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>