The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.
https://security.gentoo.org/glsa/201611-11
https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html
http://www.securityfocus.com/bid/93566
http://www.openwall.com/lists/oss-security/2016/10/15/9
http://www.openwall.com/lists/oss-security/2016/10/14/8
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html