---
id: CVE-2021-47083
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pinctrl: mediatek: fix global-out-of-bounds issue

  When eint virtual eint number is greater than gpio number,
  it maybe produce 'desc[eint_n]' size globle-out-of-bounds …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pinctrl: mediatek: fix global-out-of-bounds issue

  When eint virtual eint number is greater than gpio number,
  it maybe produce 'desc[eint_n]' size globle-out-of-bounds …
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'
cwe:
  - CWE-125
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 5.4.169
  - 'linux_kernel >= 5.5, < 5.10.89'
  - 'linux_kernel >= 5.11, < 5.15.12'
  - linux_kernel = 5.16
patched:
  - linux_kernel 5.15.12
published: '2024-03-04'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-47083'
references:
  - url: 'https://git.kernel.org/stable/c/2d5446da5acecf9c67db1c9d55ae2c3e5de01f8d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/441d3873664d170982922c5d2fc01fa89d9439ed'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f373298e1bf0c6ea097c0bcc558dc43ad53e421f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fb563baa3eb8e7a15f2cff3c2695e2cca0493e69'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2d5446da5acecf9c67db1c9d55ae2c3e5de01f8d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/441d3873664d170982922c5d2fc01fa89d9439ed'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/f373298e1bf0c6ea097c0bcc558dc43ad53e421f'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/fb563baa3eb8e7a15f2cff3c2695e2cca0493e69'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00227
epssPercentile: 0.11981
ingestedAt: '2026-08-05T05:58:02.407Z'
---

## Overview

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

pinctrl: mediatek: fix global-out-of-bounds issue

When eint virtual eint number is greater than gpio number,
it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue.

## Affected

- `linux_kernel < 5.4.169`
- `linux_kernel >= 5.5, < 5.10.89`
- `linux_kernel >= 5.11, < 5.15.12`
- `linux_kernel = 5.16`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.15.12`