CVE-2020-25723

A reachable assertion issue was found in the USB EHCI emulation code of
QEMU. It could occur while processing USB requests due to missing handling
of DMA memory map failure. A malicious privileged user within the guest may
abuse this flaw to send bogus USB requests and crash the QEMU process on
the host, resulting in a denial of service.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=1898579&gt;