---
id: CVE-2022-3564
title: A vulnerability classified as critical was found in Linux Kernel
summary: >-
  A vulnerability classified as critical was found in Linux Kernel. Affected by
  this vulnerability is the function l2cap_reassemble_sdu of the file
  net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads
  to use after …
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-362
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.6, < 4.9.333'
  - 'linux_kernel >= 4.10, < 4.14.299'
  - 'linux_kernel >= 4.15, < 4.19.265'
  - 'linux_kernel >= 4.20, < 5.4.224'
  - 'linux_kernel >= 5.5.0, < 5.10.154'
  - 'linux_kernel >= 5.11, < 5.15.78'
  - 'linux_kernel >= 5.16, < 6.0.8'
  - debian_linux = 10.0
  - h300s_firmware
  - h500s_firmware
  - h700s_firmware
  - h410s_firmware
patched:
  - linux_kernel 6.0.8
published: '2022-10-17'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T14:17:24.427'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-3564'
references:
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1
    label: cna@vuldb.com
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html'
    label: cna@vuldb.com
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html'
    label: cna@vuldb.com
  - url: 'https://security.netapp.com/advisory/ntap-20221223-0001/'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.211087'
    label: cna@vuldb.com
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=89f9f3cb86b1c63badaf392a83dd661d56cc50b1
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20221223-0001/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://vuldb.com/?id.211087'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.01455
epssPercentile: 0.73252
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Trinadh465/linux-4.1.15_CVE-2022-3564'
  checkedAt: '2026-10-23T21:41:44.074Z'
exploitAvailable: true
ingestedAt: '2026-10-14T15:36:13.921Z'
---

## Overview

A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211087.

## Affected

- `linux_kernel >= 3.6, < 4.9.333`
- `linux_kernel >= 4.10, < 4.14.299`
- `linux_kernel >= 4.15, < 4.19.265`
- `linux_kernel >= 4.20, < 5.4.224`
- `linux_kernel >= 5.5.0, < 5.10.154`
- `linux_kernel >= 5.11, < 5.15.78`
- `linux_kernel >= 5.16, < 6.0.8`
- `debian_linux = 10.0`
- `h300s_firmware`
- `h500s_firmware`
- `h700s_firmware`
- `h410s_firmware`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.0.8`