On Wed, Jan 29, 2014 at 11:50:43PM -0500, Steven Rostedt wrote:
 > Are you running as root?  If not, you found another way to get perf to start 
 > function tracing.

Good point. In this case, I was trying some new experimental trinity code
that starts as root, generates fd's, then drops privs before doing syscalls.

So the "generate fds" part did some perf_event_open's as root, yeah.

While that's less scary from a security pov than it was last time, it's still
something that aparently needs fixing.

        Dave


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to