CVE-2022-39189 Information

Description

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

Reference

https://bugs.chromium.org/p/project-zero/issues/detail?id=2309 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736 https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17