User is able to crash running QEMU when following monitor command is called: device_add intel-hda-generic Crash is caused by assertion in object_initialize_with_type() when type is abstract. Checking if type is abstract before instance is created in qdev_device_add() allows to prevent crash on incorrect user input. Cc: qemu-stable@nongnu.org Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org - QEMU team
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