Some experiments on virtual memory system

Get source and compile

git clone https://github.com/ccss17/test_virt_memory
cd test_virt_memory
make

Test 1

Checking the memory structure of the virtual memory system and checking each physical memory address by using meltdown's POC library libkdump

sudo ./check_virtual_memory_structure HELLO WOLRD

Test 2

Accessing virtual memory space of other process and modify it. (source from https://github.com/holbertonschool/Hack-The-Virtual-Memory (hack_virt_test.c, hack_virt.py))

./hack_virt_test             # load program and load string "Holberton" to heap
ps -ef | grep hack_virt_test # check PID of "hack_virt_test"
sudo ./hack_virt_test.py 11127 Holberton TEST