---
title: "CVE-2026-89913: Linux Kernel KVM arm64 - Use After Free"
description: "Linux kernel KVM arm64 vgic-v3 contains a race condition caused by dereferencing LPI pointers without stable references in vgic_v3_save_pending_tables, letting attackers cause use-after-free and memory corruption, exploit requires concurrent access to LPI structures."
url: https://panop.io/threat-heartbeat/CVE-2026-89913/
---

# CVE-2026-89913 Linux Kernel KVM arm64 - Use After Free

Linux kernel KVM arm64 vgic-v3 contains a race condition caused by dereferencing LPI pointers without stable references in vgic\_v3\_save\_pending\_tables, letting attackers cause use-after-free and memory corruption, exploit requires concurrent access to LPI structures.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.20% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89913)

## Details

Type

Use After Free

Impact

Denial Of Service, Privilege Escalation

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix for vgic-v3 LPI reference handling.

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-2026-89913](https://nvd.nist.gov/vuln/detail/CVE-2026-89913)
- [https://git.kernel.org/stable/c/f5b8f203bfc07a5a257dff859e66d2c500f9f509](https://git.kernel.org/stable/c/f5b8f203bfc07a5a257dff859e66d2c500f9f509)
- [https://git.kernel.org/stable/c/7631f95297560157d3a9283cb999e3be00103348](https://git.kernel.org/stable/c/7631f95297560157d3a9283cb999e3be00103348)
- [https://git.kernel.org/stable/c/d3a2d20b7248ea67465af1cf79c79f90ff70926c](https://git.kernel.org/stable/c/d3a2d20b7248ea67465af1cf79c79f90ff70926c)

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## 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

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