Kernel Proc Lab is an educational Linux kernel module. Treat it as privileged code and test it only on systems where loading out-of-tree modules is acceptable.

• Loading and unloading kernel_proc_lab.ko requires root privileges.
• Creating or repairing /dev/kernel_proc_lab requires root privileges.
• Destructive or control operations are restricted in the driver and user tools.
• The default device-node mode is 0660; broad world-writable permissions are not used.
• udev integration is provided to grant access through the active local user session.

Systems with Secure Boot enabled may reject unsigned out-of-tree modules.

Supported options:

1. Disable Secure Boot in firmware settings for local lab machines.
2. Sign the module and enroll a MOK key:

./scripts/create-mok-key.sh
sudo mokutil --import certs/MOK.der
reboot
./scripts/sign-module.sh

Do not commit generated keys or certificates. The certs/ directory is ignored by git.

For public repositories, open a GitHub issue with:

• kernel release from uname -r
• distribution version
• make doctor output
• exact command that failed
• relevant dmesg lines

Do not include private signing keys, local credentials, or unrelated system logs.

This project is not a hardened production driver. It is intended for learning and portfolio demonstration around:

• character devices
• procfs/sysfs/debugfs
• ioctl ABI design
• event buffering
• pollable streams
• DKMS and module packaging