virtualization patching

CVE-2026-31588 is the kind of Linux kernel flaw that looks tiny in code review and important in production: a narrow KVM x86 MMIO use-after-free triggered by page-splitting emulated writes, userspace exits, and stale stack-backed data. The fix changes how small write values are stored when KVM...

Microsoft's security guidance for CVE-2026-21248 warns Windows administrators that a serious Remote Code Execution (RCE) vulnerability exists in Hyper‑V components used to bridge guest and host operations, and that immediate, prioritized remediation is required even though vendor advisories...