The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
https://security.gentoo.org/glsa/201609-01
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg02108.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.securityfocus.com/bid/92444
http://www.openwall.com/lists/oss-security/2016/08/18/5
http://www.openwall.com/lists/oss-security/2016/08/11/5
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fdda170e50b8af062cf5741e12c4fb5e57a2eacf