tree 2df985d7da5c32e2fd69054e289430ee3804ffd9
parent 2c2a55482a8569dfee98c8bb04bff5c21f3dd355
author Arthur Ishiguro <arthuri@google.com> 1600805115 -0700
committer android-build-team Robot <android-build-team-robot@google.com> 1605739899 +0000

Prevent mEventCache UAF in SensorEventConnection

Since there is no check to see if SensorEventConnection has been
destroyed, the mEventCache pointer can still be used even after it
was freed.

Bug: 168211968
Test: Run test code that attempts to enable a sensor after destroying
the SensorEventConnection, and verify no system_server crash occurs.

Change-Id: Ia9275b7cc574df371cdb2e1b80c6699df193b580
Merged-In: Ia9275b7cc574df371cdb2e1b80c6699df193b580
(cherry picked from commit 3e9afc163256db661b9039120d07501b3a8a7d99)
(cherry picked from commit 930b583557e46f14b6d0a0dc1700eb33f18a7714)