Debian Security Advisory 1846-1 – Matt T. Yourst discovered an issue in the kvm subsystem. Local users with permission to manipulate /dev/kvm can cause a denial of service (hang) by providing an invalid cr3 value to the KVM_SET_SREGS call.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79781/dsa-1846-1.txt
Source: https://packetstormsecurity.com/files/79781/Debian-Linux-Security-Advisory-1846-1.html