commit aab596447e6717871c06c990a7c3bf14b418230b
author Priyanka Gujjula <pgujjula@codeaurora.org> Mon Nov 23 19:07:56 2020 +0800
committer Wen Chang Liu <wenchangliu@google.com> Thu Jan 28 05:41:41 2021 +0000
tree 7af08474df188e988b7b223ac3ef9ac8da6572bd
parent 5b4c9cc61224d07df0e44bc14a9055d36c924ae5

msm: vidc: Handle race condition for accessing session head

During CVP internal session, CVP close done calls for session
clean. session_clean API acquires the device lock and destroys
the cvp hal_session. At the same time, if decoder session is
also in the verge of close, since session_end does not have a
device lock, there is high chance to access corrupted hal_session
values.

Bug: 177218469
Test: SST, RSST, XTS
Change-Id: I34593e6507da9bad13c6d92faf40c4d790825d39
Signed-off-by: Priyanka Gujjula <pgujjula@codeaurora.org>
(cherry picked from commit 948cc9704cee8c44234819a51af261f0cf1993fd)