The module utility can also be used to create "files" in the proc file system.

Two examples:

• Read (only) some kernel data.
• Read and write kernel data (but write only if root).

This existing file is of the second kind:

 /proc/sys/kernel/randomize_va_space
   

If it is > 0 the kernel adds a random number of bytes to the bottom of the call stack each time a program is executed as protection against buffer overflow attacks.