Messages in this thread | | | Date | Fri, 30 Aug 2013 17:49:59 +0200 | From | Frederic Weisbecker <> | Subject | Re: suspicious RCU usage (perf) |
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On Tue, Aug 27, 2013 at 02:16:29PM +0200, Peter Zijlstra wrote: > 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().
Well, it also depends on sysctl kernel.perf_event_paranoid settings.
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