---
id: CVE-2022-3636
title: >-
  A vulnerability was identified in Linux Kernel
  33fc42de33278b2b3ec6f3390512987bc29a62b7
summary: >-
  A vulnerability was identified in Linux Kernel
  33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function
  __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the
  component Ethernet Handler. Such manipulati…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-119
  - CWE-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - linux_kernel
  - debian_linux = 11.0
published: '2022-10-21'
updated: '2026-07-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-3636'
references:
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2022-3636'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/211935'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/211935/cti'
    label: cna@vuldb.com
  - url: 'https://www.kernel.org/'
    label: cna@vuldb.com
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://vuldb.com/?id.211935'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2023/dsa-5333'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00344
epssPercentile: 0.28054
ingestedAt: '2026-07-28T18:38:07.935Z'
---

## Overview

A vulnerability was identified in Linux Kernel 33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. Such manipulation leads to use after free. The name of the patch is 17a5f6a78dc7b8db385de346092d7d9f9dc24df6. It is best practice to apply a patch to resolve this issue. No released Linux Kernel version was ever affected by this CVE.

## Affected

- `linux_kernel`
- `debian_linux = 11.0`

## Remediation

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