---
title: "CVE-2026-89883: Linux Kernel media - Misconfiguration"
description: "Linux kernel media subsystem contains a resource management vulnerability caused by failure to unregister rc device on probe failure after rc_register_device() succeeds, letting kernel maintain stale device registrations, exploit requires kernel module probe failure."
url: https://panop.io/threat-heartbeat/CVE-2026-89883/
---

# CVE-2026-89883 Linux Kernel media - Misconfiguration

Linux kernel media subsystem contains a resource management vulnerability caused by failure to unregister rc device on probe failure after rc\_register\_device() succeeds, letting kernel maintain stale device registrations, exploit requires kernel module probe failure.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.18% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89883)

## Details

Type

Misconfiguration

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

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-2026-89883](https://nvd.nist.gov/vuln/detail/CVE-2026-89883)
- [https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5](https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5)
- [https://git.kernel.org/stable/c/4655a591478e4b31a3396695a2457daad9d4c899](https://git.kernel.org/stable/c/4655a591478e4b31a3396695a2457daad9d4c899)
- [https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3](https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3)
- [https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6](https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6)
- [https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040](https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040)
- [https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5](https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5)
- [https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e](https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e)

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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

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

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