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New Januscape Linux flaw allows VM escape on Intel, AMD devices

BACKGROUND
1 SIGNALFIRST DETECTED 7 July 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
6 Jul
16-Year-Old Linux KVM Flaw Lets Guest VMs Escape to Host on Intel and AMD x86 Systems

A use-after-free bug in Linux's KVM hypervisor can be triggered from a guest virtual machine to corrupt the shadow-page state of the host kernel that runs it. Dubbed 'Januscape'

REPORT · WHO · The Hacker NewsOPEN STORY
22 Sept
New Linux Kernel Flaw Gives ARM64 KVM Guests Read-Write Access to Host Memory

A new flaw in the Linux kernel's KVM virtualization code for ARM64 processors can leave a freed piece of host memory exposed to a guest virtual machine on hosts with nested

REPORT · WHO · The Hacker NewsOPEN STORY
15 Oct
Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory

A newly disclosed critical flaw in the Linux kernel allows code inside a virtual machine to read memory on the host computer it runs on. A researcher demonstrated the leak against

REPORT · WHO · The Hacker NewsOPEN STORY
14 Oct
AI-Found Linux Kernel Flaw Gives Local Users Root, and Can Break a Guest Out to the Host

A flaw in Linux's vhost subsystem lets a local user read and write kernel memory at will and become root across nearly a decade of kernel versions. In one virtualization setup, it

REPORT · WHAT · The Hacker NewsOPEN STORY
Sources
BleepingComputer

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