The pvscsi_convert_sglist function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging an incorrect cast.
https://security.gentoo.org/glsa/201609-01
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01246.html
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg00772.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.securityfocus.com/bid/92774
http://www.openwall.com/lists/oss-security/2016/09/07/2
http://www.openwall.com/lists/oss-security/2016/09/06/3
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=49adc5d3f8c6bb75e55ebfeab109c5c37dea65e8