The megasas_ctrl_get_info function in hw/scsi/megasas.c in QEMU allows local guest OS administrators to obtain sensitive host memory information via vectors related to reading device control information.
https://security.gentoo.org/glsa/201609-01
https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg01969.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.ubuntu.com/usn/USN-3047-2
http://www.ubuntu.com/usn/USN-3047-1
http://www.securityfocus.com/bid/91097
http://www.openwall.com/lists/oss-security/2016/06/08/3
http://www.openwall.com/lists/oss-security/2016/06/08/13
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=844864fbae66935951529408831c2f22367a57b6