Re: suspicious RCU usage (perf)

From: Peter Zijlstra
Date: Tue Aug 27 2013 - 08:16:44 EST


On Mon, Aug 26, 2013 at 03:03:04PM -0400, Steven Rostedt wrote:
> > Is there some path through sys_perf_open_event that might be
> > missing a capability check perhaps ?
> >
>
> That's a question for Ingo, Peter or Jiri.

Its not something I've looked at recently, git blames Jiri and fweisbec
for most of that code.

Permission checks appear to live in
kernel/trace/trace_event_perf.c:perf_trace_event_perm().
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