---
id: CVE-2026-89869
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  media: qcom: iris: use disable_irq() during power-off

  The IRQ is registered as a threaded IRQ.

  Using disable_irq_nosync() in iris_vpu_power_off() does not wait
  for an…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  media: qcom: iris: use disable_irq() during power-off

  The IRQ is registered as a threaded IRQ.

  Using disable_irq_nosync() in iris_vpu_power_off() does not wait
  for an…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= bb8a95aa038e099f5ec82c466e996b006e05abd7 <
    ff98cd2b8b54cf96bccace2f7b7e4775cdccaf02
  - >-
    Linux >= bb8a95aa038e099f5ec82c466e996b006e05abd7 <
    d7f34cbaced92069400fc5d71fefe3cb4c748da8
  - >-
    Linux >= bb8a95aa038e099f5ec82c466e996b006e05abd7 <
    b9c2215bdedc9c532a7e9d57ec49ee1b6381f863
  - Linux 6.15
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T11:16:55.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89869'
references:
  - url: 'https://git.kernel.org/stable/c/b9c2215bdedc9c532a7e9d57ec49ee1b6381f863'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d7f34cbaced92069400fc5d71fefe3cb4c748da8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ff98cd2b8b54cf96bccace2f7b7e4775cdccaf02'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.988Z'
epss: 0.00198
epssPercentile: 0.09867
---

## Overview

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

media: qcom: iris: use disable_irq() during power-off

The IRQ is registered as a threaded IRQ.

Using disable_irq_nosync() in iris_vpu_power_off() does not wait
for an already queued threaded IRQ handler to complete before
returning.

As a result, a threaded IRQ handler may still run after the VPU has
been powered down and access hardware registers after power-off.

Replace disable_irq_nosync() with disable_irq() so the power-off path
waits for any in-flight threaded IRQ handler to complete before
returning.

## Remediation

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