---
id: CVE-2026-43399
title: 'drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl

  Drop reference to syncobj and timeline fence when aborting the ioctl due
  output array being too small.
  …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 <
    762f47e2b824383d5be65eee2c40a1269b7d50c8
  - >-
    Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 <
    5409247d41f372bec5b141ef599f2d9f5e81b746
  - >-
    Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 <
    49abfa812617a7f2d0132c70d23ac98b389c6ec1
  - Linux 6.16
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T15:37:13.669865Z'
published: '2026-05-08'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:42:51.663Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-43399'
references:
  - url: 'https://git.kernel.org/stable/c/762f47e2b824383d5be65eee2c40a1269b7d50c8'
  - url: 'https://git.kernel.org/stable/c/5409247d41f372bec5b141ef599f2d9f5e81b746'
  - url: 'https://git.kernel.org/stable/c/49abfa812617a7f2d0132c70d23ac98b389c6ec1'
tags:
  - cve.org
epss: 0.00121
epssPercentile: 0.01902
ingestedAt: '2026-11-06T15:54:03.926Z'
---

## Overview

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

drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl

Drop reference to syncobj and timeline fence when aborting the ioctl due
output array being too small.

(cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd27)

## Affected

- `Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 < 762f47e2b824383d5be65eee2c40a1269b7d50c8`
- `Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 < 5409247d41f372bec5b141ef599f2d9f5e81b746`
- `Linux >= a292fdecd72834b3bec380baa5db1e69e7f70679 < 49abfa812617a7f2d0132c70d23ac98b389c6ec1`
- `Linux 6.16`

## Remediation

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