CVE-2010-2784

The subpage MMIO initialization functionality in the subpage_register
function in exec.c in QEMU-KVM, as used in the Hypervisor (aka
rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM
83, does not properly select the index for access to the callback array,
which allows guest OS users to cause a denial of service (guest OS crash)
or possibly gain privileges via unspecified vectors.