Software Security Testing of Existing Kernel Module - How To?

Let's say that i found the codebase for a specific Kernel module.

I would like to perform software checks, i.e., from a security standpoint of said module.

Q1:

Should i compile the module from scratch and insert it in an existing Kernel, i.e., the latest Ubuntu for example,

or

should i use the distribution's packaged version?

Q2:

Furthermore, should I compile a standalone Kernel as well as the Module together, and add any Debugging Flags?

Q3:

What kind of Debugging Flags should i include?

Are these specific to the module or are there any options that i should include in the kernel itself? The kernel configuration file that i know of can be found under: /boot/config/${uname -r}/ and that one is the clone of /usr/lib/modules/${uname -r}/build/.config

Q4:

To my understanding, I can obtain information regarding Kernel Module output by issuing something like:

journalctl --since "1 hour ago" | grep "kernel"

or

by checking the following files:

/var/log/kern
/var/log/syslog
/var/log/messages
/var/log/daemon.log

Is there any other source of information I should consider?

What do you think I should do? How should I approach this?