---
title: "CVE-2026-89912: Linux Kernel KVM - Denial of Service"
description: "Linux kernel KVM arm64 vgic-its contains a null pointer dereference caused by improper handling of ITE collection on ITT save, letting a guest trigger host crash during migration, exploit requires guest VM access."
url: https://panop.io/threat-heartbeat/CVE-2026-89912/
---

# CVE-2026-89912 Linux Kernel KVM - Denial of Service

Linux kernel KVM arm64 vgic-its contains a null pointer dereference caused by improper handling of ITE collection on ITT save, letting a guest trigger host crash during migration, exploit requires guest VM access.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.18% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89912)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Published

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-89912](https://nvd.nist.gov/vuln/detail/CVE-2026-89912)
- [https://git.kernel.org/stable/c/c6c156d931c33b92362383cf76f6d6e1291dcbfe](https://git.kernel.org/stable/c/c6c156d931c33b92362383cf76f6d6e1291dcbfe)
- [https://git.kernel.org/stable/c/2c3a87ad3d3935c43d465cd2465db9020f9e898f](https://git.kernel.org/stable/c/2c3a87ad3d3935c43d465cd2465db9020f9e898f)
- [https://git.kernel.org/stable/c/36df368861d2664291298feeb37dfef43fcae670](https://git.kernel.org/stable/c/36df368861d2664291298feeb37dfef43fcae670)
- [https://git.kernel.org/stable/c/3d4c26b16a04a084fe0bde08ccdd8086570f8bbe](https://git.kernel.org/stable/c/3d4c26b16a04a084fe0bde08ccdd8086570f8bbe)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)