tree a91d02be5bfee3b50e8286b5626df83b69bb9255
parent b2e8c5a20709ff8273236ab76f3a2caa9b83630e
author Brian Duddie <bduddie@google.com> 1518735749 -0800
committer android-build-team Robot <android-build-team-robot@google.com> 1523659612 +0000

Add bounds check to sensors direct channel creation

Avoids attempting to read a 0-size array during input validation. Adds
SafetyNet logging when this is triggered.

Also, change the cast for the ashmem size check from int to int64_t to
avoid potential conversion to negative number on 32-bit systems.

Bug: 70986337
Test: run POC, confirm via logs that function bails early
Change-Id: I674285738983f18de3466f9e818d83dabe269b7d
(cherry picked from commit 0eb4624b33aeb375ae431a6b1e2b787c959968fe)