---
title: "CVE-2026-90030: Linux Kernel usb: dwc3 - Denial of Service"
description: "Linux kernel usb: dwc3 contains a vulnerability caused by setting forceRM=1 during EndTransfer command on DWC_usb31 v2.00a and v2.10a controllers, letting attackers trigger SMMU faults due to aborted transfers remaining active, exploit requires use of affected hardware controllers."
url: https://panop.io/threat-heartbeat/CVE-2026-90030/
---

# CVE-2026-90030 Linux Kernel usb: dwc3 - Denial of Service

Linux kernel usb: dwc3 contains a vulnerability caused by setting forceRM=1 during EndTransfer command on DWC\_usb31 v2.00a and v2.10a controllers, letting attackers trigger SMMU faults due to aborted transfers remaining active, exploit requires use of affected hardware controllers.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.18% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90030)

## 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 a Linux kernel version that clears forceRM when issuing EndTransfer as per newer DWC3 programming guide.

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-2026-90030](https://nvd.nist.gov/vuln/detail/CVE-2026-90030)
- [https://git.kernel.org/stable/c/0afe5c31612de3d18cc6d16e616da4a48ba1e5a2](https://git.kernel.org/stable/c/0afe5c31612de3d18cc6d16e616da4a48ba1e5a2)
- [https://git.kernel.org/stable/c/b58e6200450d350314db0ecda7d6d1bde3281e80](https://git.kernel.org/stable/c/b58e6200450d350314db0ecda7d6d1bde3281e80)
- [https://git.kernel.org/stable/c/e01408ee52fe5cb2d0b43f47f359336af2b6c316](https://git.kernel.org/stable/c/e01408ee52fe5cb2d0b43f47f359336af2b6c316)
- [https://git.kernel.org/stable/c/9f1e57c484f9edeaaa5a27a03ed985e98496e81d](https://git.kernel.org/stable/c/9f1e57c484f9edeaaa5a27a03ed985e98496e81d)

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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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