---
id: CVE-2026-90028
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: typec: hd3ss3220: track VBUS enable state per consumer

  regulator_is_enabled() reports the aggregate regulator state, not
  whether this consumer holds an enable ref…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: typec: hd3ss3220: track VBUS enable state per consumer

  regulator_is_enabled() reports the aggregate regulator state, not
  whether this consumer holds an enable ref…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b3f9d6e491fda73c319547881b78cdd2a222b293 <
    df7cd3908e07503fa7e9737dacf44208530e58d9
  - >-
    Linux >= b3f9d6e491fda73c319547881b78cdd2a222b293 <
    c9a48db776d7184981630ecc01a3ad30a8f7dc24
  - Linux 7.0
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T11:17:15.837'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90028'
references:
  - url: 'https://git.kernel.org/stable/c/c9a48db776d7184981630ecc01a3ad30a8f7dc24'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/df7cd3908e07503fa7e9737dacf44208530e58d9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.938Z'
epss: 0.00198
epssPercentile: 0.08434
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: hd3ss3220: track VBUS enable state per consumer

regulator_is_enabled() reports the aggregate regulator state, not
whether this consumer holds an enable reference. If another consumer
enables VBUS first, the driver can skip its own regulator_enable() call
and later attempt to drop a reference it never acquired, triggering an
unbalanced regulator disable warning.

Track successful enable and disable calls locally. Keep the state
unchanged when an operation fails so a later role or ID notification
retries the operation while this consumer keeps balanced references.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.