perf: duplicate deletion of perf event
a malicious app can open a perf event with constraint_duplicate bit set, disable the event, and close the fd. On closing the fd, the perf_release() modification causes the kernel to clean up the event as if it still were enabled, leading to the event being removed from a list twice. CRs-Fixed: 977563 Change-Id: I5fbec3722407d2f3d0ff0d9f7097c5889e31fd62 Signed-off-by:Srinivasarao P <spathi@codeaurora.org> Reviewed-on: http://mcrd1-22-pc.corpnet.asus/code-review/master/228533 Reviewed-by:
allen1_huang <allen1_huang@asus.com> Tested-by:
allen1_huang <allen1_huang@asus.com>
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