The mptsas_process_scsi_io_request function in QEMU (aka Quick Emulator), when built with LSI SAS1068 Host Bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors involving MPTSASRequest objects.
https://security.gentoo.org/glsa/201611-11
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03604.html
https://bugzilla.redhat.com/show_bug.cgi?id=1376776
http://www.securityfocus.com/bid/92997
http://www.openwall.com/lists/oss-security/2016/09/16/5
http://www.openwall.com/lists/oss-security/2016/09/16/11
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=670e56d3ed2918b3861d9216f2c0540d9e9ae0d5