4 ms·

First, this is local exploit. Second, most distributions do not allow access to realtime scheduling by regular users. In particular, a simple for(;;); at the

First, this is local exploit. Second, most distributions do not allow access to realtime scheduling by regular users. In particular, a simple for(;;); at the highest SCHED_FIFO priority will lock the box. You can check /etc/security/limits.conf to see which users / groups are allowed a higher than normal rtprio. That being said, often pulseaudio and/or jackd are given realtime priviledges, so I assume people will be looking at them.

vetrom 14y ago
RT privilege is not a prerequisite to this exploit, it only makes it 'easier'.
- vetrom 14y ago
  As a matter of fact, I also just realized that it may be possible that nice-ing the 'victim' process down to -20 may also make it easier, and is a non-privileged operation almost everywhere.