In writeToParcel and createFromParcel of RttManager.java there is a permission bypass due to a write size mismatch. This could lead to a local escalation of privileges where the user can start an activity with system privileges with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: 6.0 6.0.1 7.0 7.1.1 7.1.2 8.0 8.1. Android ID: A-70398564.