hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds access or infinite loop, and QEMU process crash) via a crafted page count for descriptor rings.
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg00050.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.securityfocus.com/bid/92772
http://www.openwall.com/lists/oss-security/2016/09/07/1
http://www.openwall.com/lists/oss-security/2016/09/06/2
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=7f61f4690dd153be98900a2a508b88989e692753