The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows
local guest OS administrators to cause a denial of service (infinite
loop and CPU consumption) via a circular isochronous transfer
descriptor (iTD) list.
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MLIST:[oss-security] 20151214 CVE request Qemu: usb: infinite loop in ehci_advance_state results in DoS
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