tree bde8ec5825a0b4a5ee9509336a877bdeb6a0ee52
parent bce047cc96e71af9f0d55113543460bed1b156f4
author Ray Essick <essick@google.com> 1487894889 -0800
committer gitbuildkicker <android-build@google.com> 1491517002 -0700

Validate lengths in HEVC metadata parsing

Add code to validate the size parameter passed to
HecvParameterSets::addNalUnit().  Previously vulnerable
to decrementing an unsigned past 0, yielding a huge result value.

Bug: 35467107
Test: ran POC, no crash, emitted new "bad length" log entry
Change-Id: Ia169b9edc1e0f7c5302e3c68aa90a54e8863d79e
(cherry picked from commit e0dcf097cc029d056926029a29419e1650cbdf1b)