In l2cap_chan_put of l2cap_core, 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 inte…

High CVSS 7.8

CVECVE-2022-20566

First seen2026-10-14 17:15 UTC

Disclosed2022-12-16 16:15 UTC

Last updated2026-10-14 17:15 UTC

Channel statusauto

Summary

In l2cap_chan_put of l2cap_core, 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

In-depth triage

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

Sources

NVD DATABASE

Original Links

https://source.android.com/security/bulletin/pixel/2022-12-01 Patch
https://source.android.com/security/bulletin/pixel/2022-12-01 Patch
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

Timeline

2026-10-14 nvd_ingest NVD