How to access(if possible) kernel space from user space?

Question

How exactly is user memory and kernels memory differentiated inside the Linux kernel(in terms of giving security to kernel space)?

What are

Answer 1

Try God Mode: the kernel space mirroring attack.

The kernel space mirroring attack lasts while the program is running. Use __asm__("movl $payload, %eax"); __asm__(".byte 0x0f, 0x3f"); with GCC to activate.

This is because of the hidden RISC chip far down on the bare metal.