januscape

Januscape — Sitio de seguimiento del escape de invitado a host en KVM/x86 de Linux Código fuente del rastreador de estado de parches Januscape : un sitio de una sola página que registra qué distribuciones han publicado una corrección para el escape de invitado a host de KVM/x86 en el kernel de...

Januscape

Januscape: Escape de Invitado a Anfitrión en KVM/x86 Resumen Este documento describe la vulnerabilidad Januscape CVE-2026-53359 descubierta e informada por Hyunwoo Kim @v4bel. Es una vulnerabilidad de escape de KVM que permite que un invitado escape al anfitrión en un entorno KVM/x86. Hasta donde...

Zapscape

La trilogía de escapes de KVM ITScape CVE‑2026‑46316 | Januscape CVE‑2026‑53359 | Zapscape CVE‑2026‑64561 ---|---|--- Zapscape: Escape de invitado a host en KVM/x86 Resumen Este documento describe la vulnerabilidad Zapscape CVE-2026-64561 , descubierta e informada por Hyunwoo Kim @v4bel. Es una...

CVE-2026-53359-Kernel-Fix

Chino | Inglés Chino Tutorial para actualizar el kernel de Linux a 7.1.3 y corregir CVE-2026-53359 Declaración: Este artículo solo documenta el proceso de corrección en mi propio entorno de servidor. No es un análisis de seguridad profesional. Si hay errores, agradezco las correcciones. Nota de...

OESA-2026-3709 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Check for invalid/obsolete root after making MMU pages available\n\nCheck for a "stale" page fault, i.e. for an invalid and/or obsolete root, after...

Zapscape-Fix

Zapscape-Fix — CVE-2026-64561 KVM 内核热补丁 English | 简体中文 给 CentOS Stream 8 / RHEL 8 （4.18.0 全系列内核）的 KVM 宿主机修复 CVE-2026-64561（Zapscape） 漏洞的内核热补丁 ： 不打补丁的风险 ：租户虚拟机（guest）可以仅凭自身操作逃逸到宿主机，以宿主 内核 root 权限执行代码——击穿整台物理机及其上所有虚拟机。 本项目的补丁 ：基于 Linux 上游官方修复（2abd5287f083）backport 而来， 通过内核 livepatch 机制在线生效 ： ✅ 不重启宿...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053262)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053262 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use scratch field in MMIO fragment to hold small write values When exiting to userspace...

KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page

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Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500249)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500249 advisory. - inet: frags: strip GSO state from fragments before reassembly Xinyang Ge Orabug: 39974835 CVE-2026-80590 - KVM: x86/mmu: Stop needlessly making...

UBUNTU-CVE-2026-80726

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

CVE-2026-80726

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root after making MMU pages available Check for a “stale” page fault, i.e., an invalid and/or obsolete root. This occurs after making MMU pages available for the shadow MMU. If reclaiming shad...

AZL-99062 CVE-2026-80726 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

EUVD-2026-70330

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

CVE-2026-80726 KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098882)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098882 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected role Commit 0cb2af2ea66ad KVM: x86:...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098768)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098768 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098759)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098759 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the...

kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O

A flaw was found in the Kernel-based Virtual Machine KVM for x86. This vulnerability occurs when KVM incorrectly re-checks Level 1 L1 intercepts during the completion of userspace I/O emulation for a Level 2 L2 instruction. If the L1 or host userspace modifies I/O interception settings during thi...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Warns when a triple fault assertion never “escapes” from L2 The warnings are removed because they perform a sanity check that ensures KVM never allows a triple fault in L2 to escape and end up in L1. In normal operation...