CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

The vulnerability of the svm_set_x2apic_msr_interception() function in the arch/x86/kvm/svm/svm.c module of the KVM subsystem in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the svmsetx2apicmsrinterception function in the arch/x86/kvm/svm/svm.c module of the KVM subsystem in the Linux operating system is related to an incorrect sequence of operations when switching to the xapic working mode. Exploiting this vulnerability could allow a attacker to...