CVE-2022-20566: Use After Free

Published Dec 16, 2022
·
Updated

In l2capchanput of l2capcore, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel

Affected Software

2 affected componentsFixes available
Google Android
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1

Event History

Dec 16, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:05 AM
Description
Apr 28, 2025
Data Sourced
via Ubuntu·04:18 AM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2022-20566?

CVE-2022-20566 has a severity rating classified as a local escalation of privilege vulnerability.

2

How do I fix CVE-2022-20566?

To fix CVE-2022-20566, update the Android kernel to the patched versions provided by the vendor.

3

What products are affected by CVE-2022-20566?

CVE-2022-20566 affects various versions of the Android kernel.

4

Is user interaction required to exploit CVE-2022-20566?

No, user interaction is not needed to exploit CVE-2022-20566.

5

What could be the impact of CVE-2022-20566?

The impact of CVE-2022-20566 could lead to local escalation of privileges without additional execution privileges needed.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203