Memory leak in the virtio_gpu_set_scanout function in hw/display/virtio-gpu.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (memory consumption) via a large number of "VIRTIO_GPU_CMD_SET_SCANOUT:" commands.
https://security.gentoo.org/glsa/201706-03
https://bugzilla.redhat.com/show_bug.cgi?id=1452597
http://www.securityfocus.com/bid/98632
http://www.openwall.com/lists/oss-security/2017/05/19/1
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=dd248ed7e204ee8a1873914e02b8b526e8f1b80d