The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | 2.2.0 | 2.2.0.x |