QEMU (aka Quick Emulator), when built with VMWARE PVSCSI paravirtual SCSI bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds array access) via vectors related to the (1) PVSCSI_CMD_SETUP_RINGS or (2) PVSCSI_CMD_SETUP_MSG_RING SCSI command.
https://bugzilla.redhat.com/show_bug.cgi?id=1334384
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03774.html
http://www.openwall.com/lists/oss-security/2016/05/23/1
http://www.openwall.com/lists/oss-security/2016/05/23/4