Stack-based buffer overflow in the vrend_decode_set_framebuffer_state function in vrend_decode.c in virglrenderer before 926b9b3460a48f6454d8bbe9e44313d86a65447f, as used in Quick Emulator (QEMU), allows a local guest users to cause a denial of service (application crash) via the "nr_cbufs" argument.
https://security.gentoo.org/glsa/201707-06
https://cgit.freedesktop.org/virglrenderer/commit/?id=926b9b3460a48f6454d8bbe9e44313d86a65447f
https://bugzilla.redhat.com/show_bug.cgi?id=1421126