---
title: "CVE-2026-89597: Linux Kernel - Resource Management Flaw"
description: "Linux kernel contains a resource management flaw caused by failure to unregister v86d connector callback on platform driver registration failure in uvesafb_init(), letting attackers cause resource leaks, exploit requires kernel code execution."
url: https://panop.io/threat-heartbeat/CVE-2026-89597/
---

# CVE-2026-89597 Linux Kernel - Resource Management Flaw

Linux kernel contains a resource management flaw caused by failure to unregister v86d connector callback on platform driver registration failure in uvesafb\_init(), letting attackers cause resource leaks, exploit requires kernel code execution.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.17% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89597)

## Details

Type

Resource Management Flaw

Impact

Denial Of Service

CVSS vector

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

Published

11 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-2026-89597](https://nvd.nist.gov/vuln/detail/CVE-2026-89597)
- [https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7](https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7)
- [https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e](https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e)
- [https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22](https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22)
- [https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f](https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f)
- [https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15](https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15)
- [https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a](https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a)
- [https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0](https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0)
- [https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a](https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a)

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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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