CB Response: What Causes 'loading out-of-tee module taints kernel' Error on Reboot?

Products

• Carbon Black EDR (formerly Cb Response)
• Carbon Black Hosted EDR (formerly Cb Response Cloud)

Issue/Introduction

Why are the following error messages shown after rebooting Linux server?
 

loading out-of-tree module taints kernel.
module license 'Proprietary' taints kernel.
module verification failed: signature and/or required key missing - tainting kernel

Environment

• EDR Sensor: All Supported Versions

Resolution

This is due to the EDR Sensor using a proprietary module. This is a standard Linux message and can be ignored.