The ohcibusstart function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-2391.json"