In Cloudlinux, KernelCare Updates Fails With "The `free` type patch is not found for your kernel. Please select existing patch type" Error

Symptoms: 

You might receive an email with the following content:

"The `free` type patch is not found for your kernel. Please select existing patch type"

Alternatively, when running a manual update the same error message might appear: 

kcarectl --update --test

Downloading updates
The `free` type patch is not found for your kernel. Please select existing patch type

Explanation: 

CloudLinux includes symlink protection so the free patch set is neither supported nor necessary on CloudLinux. You can refer to this link for more information: 

https://docs.cpanel.net/ea4/apache/symlink-race-condition-protection/#cloudlinux-securelinks

Workaround: 

To disable the free patch set and return to the default configuration you can run the following command: 

kcarectl --set-patch-type default

'default' patch type selected

And finally, run a test update to ensure that the error has indeed disappeared:

kcarectl --update --test --kpatch-debug

Downloading updates
Patch level 3 applied. Effective kernel version 3.10.0-962.3.2.lve1.5.39.el7
Kernel is safe