---
id: CVE-2024-47661
title: 'drm/amd/display: Avoid overflow from uint32_t to uint8_t'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Avoid overflow from uint32_t to uint8_t

  [WHAT & HOW]
  dmub_rb_cmd's ramping_boundary has size of uint8_t and it is assigned
  0xFFFF. Fix it by changing …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <
    1f95056cae7bded5614ecda415af1d6d4428494e
  - >-
    Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <
    6fc6ef4cd858a45479fed881e326d2449a2c9e51
  - >-
    Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <
    30d1b783b6eeaf49d311a072c70d618d993d01ec
  - >-
    Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <
    d6b54900c564e35989cf6813e4071504fa0a90e0
  - Linux 4.15
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-10-10T13:22:58.614441Z'
published: '2024-10-09'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:19:27.629Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-47661'
references:
  - url: 'https://git.kernel.org/stable/c/1f95056cae7bded5614ecda415af1d6d4428494e'
  - url: 'https://git.kernel.org/stable/c/6fc6ef4cd858a45479fed881e326d2449a2c9e51'
  - url: 'https://git.kernel.org/stable/c/30d1b783b6eeaf49d311a072c70d618d993d01ec'
  - url: 'https://git.kernel.org/stable/c/d6b54900c564e35989cf6813e4071504fa0a90e0'
tags:
  - cve.org
epss: 0.00253
epssPercentile: 0.16793
ingestedAt: '2026-10-21T12:48:53.730Z'
---

## Overview

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

drm/amd/display: Avoid overflow from uint32_t to uint8_t

[WHAT & HOW]
dmub_rb_cmd's ramping_boundary has size of uint8_t and it is assigned
0xFFFF. Fix it by changing it to uint8_t with value of 0xFF.

This fixes 2 INTEGER_OVERFLOW issues reported by Coverity.

## Affected

- `Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 1f95056cae7bded5614ecda415af1d6d4428494e`
- `Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 6fc6ef4cd858a45479fed881e326d2449a2c9e51`
- `Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 30d1b783b6eeaf49d311a072c70d618d993d01ec`
- `Linux >= 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < d6b54900c564e35989cf6813e4071504fa0a90e0`
- `Linux 4.15`

## Remediation

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