Tag: host memory exposure

Linux Flaw Exposes Host Memory to ARM64 KVM Guests

A newly discovered Linux flaw, CVE-2026-89775, puts host memory at risk by allowing ARM64 KVM guests to access and modify it, potentially enabling a guest to break free from its virtual machine and run code on the underlying machine. This vulnerability, found in the Linux kernel's KVM nested-virtualization code, has not yet been exploited, but poses a significant threat to host security.