EXC_BAD_ACCESS when rotating the device in iOS simulator

I'm trying to debug crashes that happen on the iOS device and simulator. My app is built with the current version of Unity, 5.2.1f1. Here's a crash that occurs in the 7.1 simulator whenever I rotate the device:

The crash is a EXC_BAD_ACCESS that happens while Unity code is attempting to call willRotateToInterfaceOrientation:duration. None of my code is at all involved in this thread, as far as I can tell.

So you'd think this would affect everyone who tries to run on iOS (perhaps only on iOS 7.1?). But my google-fu hasn't turned up any other questions about it.

Any idea what is causing this, and what I can do to fix it?