A flaw was found in the Linux kernel's freescale hypervisor manager
implementation, kernel versions 5.0.x up to, excluding 5.0.17. A parameter
passed to an ioctl was incorrectly validated and used in size calculations
for the page size calculation. An attacker can use this flaw to crash the
system, corrupt memory, or create other adverse security affects.

It was discovered that an integer overflow existed in the Freescale
(PowerPC) hypervisor manager in the Linux kernel. A local attacker with
write access to /dev/fsl-hv could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.

sbeattie	depends on freescale (ppc) only
tyhicks	Only the powerpc-e500mc and powerpc64-emb flavours of the Xenial powerpc kernel are affected. I'm downgrading the priority to negligible since no officially supported architectures are affected.