perf: Treat attr.config as u64 in perf_swevent_init()
authorTommi Rantala <tt.rantala@gmail.com>
Sat, 13 Apr 2013 19:49:14 +0000 (22:49 +0300)
committerIngo Molnar <mingo@kernel.org>
Mon, 15 Apr 2013 09:42:12 +0000 (11:42 +0200)
commit8176cced706b5e5d15887584150764894e94e02f
tree36cce7ca572582944651f686c0de806f1cfe0b0b
parent41ef2d5678d83af030125550329b6ae8b74618fa
perf: Treat attr.config as u64 in perf_swevent_init()

Trinity discovered that we fail to check all 64 bits of
attr.config passed by user space, resulting to out-of-bounds
access of the perf_swevent_enabled array in
sw_perf_event_destroy().

Introduced in commit b0a873ebb ("perf: Register PMU
implementations").

Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: davej@redhat.com
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/1365882554-30259-1-git-send-email-tt.rantala@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/events/core.c