Comment by yebyen

I have an ubuntu precise that has been keeping up with kernel updates, running 3.2.0-41-generic, and it does not give root.

Whether the vulnerability is patched or the exploit just doesn't work, I can't say, but I get this:

  yebyen@oneiric64:~$ gcc -O2 semtex.c 
  yebyen@oneiric64:~$ ./a.out 
  Killed

(Don't worry the hostname is oneiric64. It's not running oneiric.)