The ohci_service_ed_list function in hw/usb/hcd-ohci.c in QEMU (aka Quick Emulator) before 2.9.0 allows local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors, a different vulnerability than CVE-2017-9330.
https://bugzilla.redhat.com/show_bug.cgi?id=1429432
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html