arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly
initialize Code Segment (CS) in certain error cases, which allows local
users to obtain sensitive information from kernel stack memory via a
crafted application.

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
did not properly initialize the Code Segment (CS) in certain error cases. A
local attacker could use this to expose sensitive information (kernel
memory).

 jdstrand> android kernels (flo, goldfish, grouper, maguro, mako and manta) are
  not supported on the Ubuntu Touch 14.10 and earlier preview kernels
 jdstrand> linux-lts-saucy no longer receives official support
 jdstrand> linux-lts-quantal no longer receives official support