https://vmlinuz.pl/en/tags/kvm/ Recent content in Kvm on vmlinuz Hugo en 2025-2026 vmlinuz.pl Wed, 08 Jul 2026 14:00:00 +0100 https://vmlinuz.pl/en/posts/januscape/ Wed, 08 Jul 2026 14:00:00 +0100 https://vmlinuz.pl/en/posts/januscape/ <p>Another serious flaw is making the rounds, this time the worst-case scenario for the cloud: escaping a virtual machine onto the host. Dubbed <strong>Januscape</strong> and tracked as <strong>CVE-2026-53359</strong>, it lives in the shadow MMU code of the KVM hypervisor. It is roughly 16 years old and, according to its authors, the first publicly known guest-to-host exploit that works on both Intel and AMD. It was discovered by Hyunwoo Kim (@v4bel).</p>