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.
- https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c
- https://github.com/ARPSyndicate/cvemon