CVE-2009-1242

The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in
the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform
allows guest OS users to cause a denial of service (OOPS) by setting the
EFER_LME (aka “Long mode enable”) bit in the Extended Feature Enable
Register (EFER) model-specific register, which is specific to the x86_64
platform.