The camera APIs in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-08-01 allow attackers to bypass intended access restrictions and obtain sensitive information about ANW buffer addresses via a crafted application, aka internal bug 28466701.
https://android.googlesource.com/platform/frameworks/av/+/1f24c730ab6ca5aff1e3137b340b8aeaeda4bdbc