---
id: CVE-2026-89727
title: >-
  kernel: KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID
  (CVE-2026-89727)
summary: >-
  A flaw was found in the Kernel-based Virtual Machine (KVM) for ARM64 (arm64)
  architecture. A malicious guest operating system can provide an interrupt ID
  (INTID) that is outside the expected range to the GICv2 (Generic Interrupt
  Controller…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: vendor
cwe: CWE-617
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
published: '2026-09-11'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T08:54:56+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89727.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89727.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89727'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532521'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89727'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89727'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89727.mbox
  - url: 'https://git.kernel.org/stable/c/78b95c571d021391153a5ac7981e9e4d5cc856a3'
  - url: 'https://git.kernel.org/stable/c/c6d9c8ac6521d3049ec90ac58bebd23ed03ac496'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00155
epssPercentile: 0.0507
ingestedAt: '2026-09-14T11:11:19.885Z'
---

## Overview

A flaw was found in the Kernel-based Virtual Machine (KVM) for ARM64 (arm64) architecture. A malicious guest operating system can provide an interrupt ID (INTID) that is outside the expected range to the GICv2 (Generic Interrupt Controller version 2) during interrupt deactivation. This can trigger a warning condition in the host kernel, potentially leading to a host system crash and resulting in a Denial of Service (DoS) for the host.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89727.json)

**kernel: KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-15.

Affected:

- Red Hat Enterprise Linux 10

No fix planned:

- Red Hat Enterprise Linux 10

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Affected