Linux KVM/arm64 Flaw Breaks VM Isolation and Exposes Host Memory
CVE-2026-89775 can leave stale writable mappings available to an ARM64 guest when KVM nested virtualization is enabled, creating a path to host-memory access and VM escape. Operators should deploy distribution kernels containing the upstream fix, disable unnecessary nested virtualization and review access to /dev/kvm. The post Linux KVM/arm64 Flaw Breaks VM Isolation and Exposes Host Memory appeared first on Secure Bulletin.
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