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...

KVM SVM Buffer Overflow DoS

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...