Redhat Operating System patches are ready to get installed on all the CAPM components. 
Is there any page or link which shows certified patches 

Bug Fixes

Release : 3.7

Component : IM Reporting / Admin / Configuration

CA Performance Management doesn't certify the product at patch level.

Patches need to be tested first in a test environment before applying it on production.

Backup the environment before applying it on production system.

Performance Center Backup:

https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/performance-management/3-7/administrating/performance-center-administration/back-up-performance-center.html

Data Aggregator Backup:

https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/performance-management/3-7/administrating/data-aggregator-administration/back-up-data-aggregator.html

Data Reporsitory Backup:

https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/performance-management/3-7/administrating/data-repository-administration/back-up-the-data-repository.html

Stop all the services before applying the patch.

Refer below KB link on how to restart CA Performance Management Services

https://knowledge.broadcom.com/external/article?articleId=32043

Once patching completed then start all the services.