Xen 4.1.1 and earlier allows local guest OS kernels with control of a
PCI[E] device to cause a denial of service (CPU consumption and host
hang) via many crafted DMA requests that are denied by the IOMMU,
which triggers a livelock.
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the CVE-ID was allocated or reserved, and does not
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discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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