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>
(cherry picked from commit 8176cced706b5e5d15887584150764894e94e02f)
Change-Id: Ie1dd9b0d40980fbbf8499528964c01cc71efd46c
Signed-off-by: Bo Yan <byan@nvidia.com>
Reviewed-on: http://git-master/r/228455
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
GVS: Gerrit_Virtual_Submit
1 file changed