---
id: CVE-2026-46199
title: 'drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg

  Check bounds against the end of the BO whenever we access the msg.
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    88411caee8f576d6b5abf6531232fcc0ce756dc5
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    7688143ca62edeecacb3ba0a2cea129dbd262a18
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    63b51e8a9d54317d31cc3856c1e12407070d5fc2
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    3c817a60b09eaab926e475088e750936efcc95ae
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648
  - Linux 5.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T15:21:02.273163Z'
published: '2026-05-28'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:31:07.631Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-46199'
references:
  - url: 'https://git.kernel.org/stable/c/88411caee8f576d6b5abf6531232fcc0ce756dc5'
  - url: 'https://git.kernel.org/stable/c/c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e'
  - url: 'https://git.kernel.org/stable/c/7688143ca62edeecacb3ba0a2cea129dbd262a18'
  - url: 'https://git.kernel.org/stable/c/63b51e8a9d54317d31cc3856c1e12407070d5fc2'
  - url: 'https://git.kernel.org/stable/c/3c817a60b09eaab926e475088e750936efcc95ae'
  - url: 'https://git.kernel.org/stable/c/0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648'
tags:
  - cve.org
epss: 0.00131
epssPercentile: 0.02419
ingestedAt: '2026-10-16T17:24:46.712Z'
---

## Overview

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

drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg

Check bounds against the end of the BO whenever we access the msg.

## Affected

- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 88411caee8f576d6b5abf6531232fcc0ce756dc5`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 7688143ca62edeecacb3ba0a2cea129dbd262a18`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 63b51e8a9d54317d31cc3856c1e12407070d5fc2`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 3c817a60b09eaab926e475088e750936efcc95ae`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648`
- `Linux 5.13`

## Remediation

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