---
id: CVE-2022-42896
title: "There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth.\_…"
summary: "There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth.\_…"
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 4.9.335
  - 'linux_kernel >= 4.10, < 4.14.301'
  - 'linux_kernel >= 4.15, < 4.19.268'
  - 'linux_kernel >= 4.20, < 5.4.226'
  - 'linux_kernel >= 5.5, < 5.10.154'
  - 'linux_kernel >= 5.11, < 5.15.78'
  - 'linux_kernel >= 5.16, < 6.0.8'
patched:
  - linux_kernel 6.0.8
published: '2022-11-23'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:16:52.337'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-42896'
references:
  - url: >-
      https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
    label: cve-coordination@google.com
  - url: 'https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4'
    label: cve-coordination@google.com
  - url: >-
      https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4'
    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: 0.0245
epssPercentile: 0.84291
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/Satheesh575555/linux-4.19.72_CVE-2022-42896'
    - 'https://github.com/Trinadh465/linux-4.19.72_CVE-2022-42896'
  checkedAt: '2026-10-27T16:40:50.627Z'
exploitAvailable: true
ingestedAt: '2026-10-14T19:49:57.525Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2025-04-21T13:37:08.196759Z'
---

## Overview

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.

We recommend upgrading past commit   https://www.google.com/url  https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url 



## Affected

- `linux_kernel < 4.9.335`
- `linux_kernel >= 4.10, < 4.14.301`
- `linux_kernel >= 4.15, < 4.19.268`
- `linux_kernel >= 4.20, < 5.4.226`
- `linux_kernel >= 5.5, < 5.10.154`
- `linux_kernel >= 5.11, < 5.15.78`
- `linux_kernel >= 5.16, < 6.0.8`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.0.8`