---
id: CVE-2026-46230
title: 'drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu/vcn3: 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 <
    f55552adb100eb54a6e6dabff4fbdc8679bd3fa0
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    82c535eff05490c71153af57de9fe85502fcb5d5
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    638d3e0b9eb77aa53fdd60e2b928761d16ba76fa
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    870c8738c3774336baedddd0240951d078a703b8
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    638e48ee39d0f2af9336f917a6f5d6692dd64d93
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7
  - >-
    Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 <
    b193019860d61e92da395eae2011f2f6716b182f
  - Linux 5.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T15:21:15.916047Z'
published: '2026-05-28'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:31:08.719Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-46230'
references:
  - url: 'https://git.kernel.org/stable/c/f55552adb100eb54a6e6dabff4fbdc8679bd3fa0'
  - url: 'https://git.kernel.org/stable/c/82c535eff05490c71153af57de9fe85502fcb5d5'
  - url: 'https://git.kernel.org/stable/c/638d3e0b9eb77aa53fdd60e2b928761d16ba76fa'
  - url: 'https://git.kernel.org/stable/c/870c8738c3774336baedddd0240951d078a703b8'
  - url: 'https://git.kernel.org/stable/c/638e48ee39d0f2af9336f917a6f5d6692dd64d93'
  - url: 'https://git.kernel.org/stable/c/e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7'
  - url: 'https://git.kernel.org/stable/c/b193019860d61e92da395eae2011f2f6716b182f'
tags:
  - cve.org
epss: 0.00122
epssPercentile: 0.0182
ingestedAt: '2026-10-16T17:24:46.713Z'
---

## Overview

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

drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg

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

## Affected

- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < f55552adb100eb54a6e6dabff4fbdc8679bd3fa0`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 82c535eff05490c71153af57de9fe85502fcb5d5`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 638d3e0b9eb77aa53fdd60e2b928761d16ba76fa`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 870c8738c3774336baedddd0240951d078a703b8`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < 638e48ee39d0f2af9336f917a6f5d6692dd64d93`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7`
- `Linux >= 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 < b193019860d61e92da395eae2011f2f6716b182f`
- `Linux 5.13`

## Remediation

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