---
title: "CVE-2026-89994: Linux kernel dmaengine fsl-edma - Denial of Service"
description: "Linux kernel dmaengine fsl-edma contains a use-after-free vulnerability caused by dereferencing invalid pointers in tracing log output, letting attackers trigger a crash via event injection, exploit requires access to kernel tracing interface."
url: https://panop.io/threat-heartbeat/CVE-2026-89994/
---

# CVE-2026-89994 Linux kernel dmaengine fsl-edma - Denial of Service

Linux kernel dmaengine fsl-edma contains a use-after-free vulnerability caused by dereferencing invalid pointers in tracing log output, letting attackers trigger a crash via event injection, exploit requires access to kernel tracing interface.

CVSS base score 7.8 /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-2026-89994)

## Details

Type

Denial of Service

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 with the fix applied.

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-2026-89994](https://nvd.nist.gov/vuln/detail/CVE-2026-89994)
- [https://git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a](https://git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a)
- [https://git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501](https://git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501)
- [https://git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7](https://git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7)
- [https://git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435](https://git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435)

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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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