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381a3dbdab
bhyveBuildNetArgStr() calls virNetDevTapCreateInBridgePort() and passes tapfd = NULL, but tapfdSize = 1. That is wrong, because if virNetDevTapCreateInBridgePort() crashes after successfully creating a TAP device, it'll jump to 'error' label, that loops over tapfd and calls VIR_FORCE_CLOSE: for (i = 0; i < tapfdSize && tapfd[i] >= 0; i++) In that case we get a segfault. As the bhyve code doesn't use tapfd, pass NULL and set tapfdSize to 0.
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>