---
id: CVE-2026-9040
title: >-
  A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd
  Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver
  allows a local non-privileged user process to perform improper GPU memory
  processi…
summary: >-
  A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd
  Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver
  allows a local non-privileged user process to perform improper GPU memory
  processi…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-362
vendor: Arm Ltd
product: Bifrost GPU Kernel Driver
affected:
  - bifrost_gpu_kernel_driver >= r12p0 <= r49p5
  - bifrost_gpu_kernel_driver >= r50p0 <= r51p0
  - bifrost_gpu_kernel_driver >= r54p1 <= r54p2
  - valhall_gpu_kernel_driver >= r19p0 <= r49p5
  - valhall_gpu_kernel_driver >= r50p0 <= r54p3
  - valhall_gpu_kernel_driver r55p0
  - arm_5th_gen_gpu_architecture_kernel_driver >= r41p0 <= r49p5
  - arm_5th_gen_gpu_architecture_kernel_driver >= r50p0 <= r54p3
  - arm_5th_gen_gpu_architecture_kernel_driver r55p0
published: '2026-09-08'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T18:18:16.697'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9040'
references:
  - url: 'https://support.arm.com/documentation/111552/1-0/?lang=en'
    label: arm-security@arm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T17:55:31.134691Z'
epss: 0.00096
epssPercentile: 0.00777
ingestedAt: '2026-09-08T15:33:26.986Z'
---

## Overview

A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to cause a denial of service or disclose sensitive information.



This issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.

## Remediation

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