---
id: CVE-2026-90280
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend

  There is a small window where the runtime suspend callback may run
  after pm_runtime_enable() and b…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend

  There is a small window where the runtime suspend callback may run
  after pm_runtime_enable() and b…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e464a3180a43b6596bd267f9f274e1793bfb8150 <
    9b28287c5dea7650e6dd317591b9e82b6e145365
  - >-
    Linux >= e464a3180a43b6596bd267f9f274e1793bfb8150 <
    f4e39ab1b2009a89c60e4cb9dbefb8140d405eff
  - >-
    Linux >= e464a3180a43b6596bd267f9f274e1793bfb8150 <
    5547fd950d6bf72de861b6934341e7bb0888640c
  - >-
    Linux >= e464a3180a43b6596bd267f9f274e1793bfb8150 <
    03455404fb6cbfd65842695df26739853fc1516b
  - >-
    Linux >= e464a3180a43b6596bd267f9f274e1793bfb8150 <
    142c5593379273264474f31d5956b1a0065cd576
  - Linux 6.6
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:24.690'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90280'
references:
  - url: 'https://git.kernel.org/stable/c/03455404fb6cbfd65842695df26739853fc1516b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/142c5593379273264474f31d5956b1a0065cd576'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5547fd950d6bf72de861b6934341e7bb0888640c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9b28287c5dea7650e6dd317591b9e82b6e145365'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f4e39ab1b2009a89c60e4cb9dbefb8140d405eff'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.835Z'
epss: 0.002
epssPercentile: 0.10113
---

## Overview

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

phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend

There is a small window where the runtime suspend callback may run
after pm_runtime_enable() and before pm_runtime_forbid(). In this
case, a crash occurs because runtime suspend/resume dereferences
qmp->phy pointer, which is not yet initialized:
        `if (!qmp->phy->init_count) {`

This can also happen if user re-enables runtime-pm via the sysfs
attribute before qmp phy is initialized.

Similarly to other qcom phy drivers, introduce a qmp->phy_initialized
variable that can be used to avoid relying on the possibly uninitialized
phy pointer.

## Remediation

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