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CVE-2023-30456

Description

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.

POC

Reference

- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html

- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8

Github

- https://github.com/ARPSyndicate/cve-scores