---
id: CVE-2026-46292
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pmdomain: core: Fix detach procedure for virtual devices in genpd

  If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(),
  genpd calls pm_runtime_en…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pmdomain: core: Fix detach procedure for virtual devices in genpd

  If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(),
  genpd calls pm_runtime_en…
severity: none
published: '2026-06-08'
updated: '2026-07-07'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46292'
references:
  - url: 'https://git.kernel.org/stable/c/26735dfdd8930d9ef1fa92e590a9bf77726efdf6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/361518a26e4434e879db6ff43bf364795dcbfbff'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/51a7dd9cbae9210335ce398642ecaaa52c939eb5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/52e485ed0dcb5496864003ba9ffcef7d5b613f83'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/707cb5df3eab32ddc52979418f7ace62941e6381'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8d44391a7f29e4601e8243f13498d0219bab2576'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/98b8104978474d381256a2b2fb0e7ca8e05a7bfa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e8f8dad44f024a5c99e54a48ad5c943fa8e54319'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00123
epssPercentile: 0.0236
ingestedAt: '2026-07-07T18:42:24.300Z'
---

## Overview

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

pmdomain: core: Fix detach procedure for virtual devices in genpd

If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(),
genpd calls pm_runtime_enable() for the corresponding virtual device that
it registers. While this avoids boilerplate code in drivers, there is no
corresponding call to pm_runtime_disable() in genpd_dev_pm_detach().

This means these virtual devices are typically detached from its genpd,
while runtime PM remains enabled for them, which is not how things are
designed to work. In worst cases it may lead to critical errors, like a
NULL pointer dereference bug in genpd_runtime_suspend(), which was recently
reported. For another case, we may end up keeping an unnecessary vote for a
performance state for the device.

To fix these problems, let's add this missing call to pm_runtime_disable()
in genpd_dev_pm_detach().

## Remediation

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