On Fri, Jul 11, 2014 at 01:56:17PM +0200, Jiri Olsa wrote: > hi, > sending fix for bug reported by Alexander Yarygin in here: > http://marc.info/?l=linux-kernel&m=140475133707722&w=2 > > The main problem was, that the event_init tracepoint callback > checked permission of the 'current' task instead of the event > owner task. > > While this is ok for perf_event_open syscall check, it is wrong > once event_init is called during fork to create child events. > In this case the permission of the forked task is checked instead > of the owner task of the parent event.
also available in here: git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/core_perm jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
