AVPlayerViewController crashes

Question

Created Apr ’25

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I have a crash related to playing video in AVPlayerViewController and AVQueuePlayer. I download the video locally from the network and then initialize it using AVAsset and AVPlayerItem. Can't reproduce locally, but crashes occur from firebase crashlytics only for users starting with iOS 18.4.0 with this trace:

Crashed: com.apple.avkit.playerControllerBackgroundQueue
0 libobjc.A.dylib 0x1458 objc_retain + 16
1 libobjc.A.dylib 0x1458 objc_retain_x0 + 16
2 AVKit 0x12afdc __77-[AVPlayerController currentEnabledAssetTrackForMediaType:completionHandler:]_block_invoke + 108
3 libdispatch.dylib 0x1aac _dispatch_call_block_and_release + 32
4 libdispatch.dylib 0x1b584 _dispatch_client_callout + 16
5 libdispatch.dylib 0x6560 _dispatch_continuation_pop + 596
6 libdispatch.dylib 0x5bd4 _dispatch_async_redirect_invoke + 580
7 libdispatch.dylib 0x13db0 _dispatch_root_queue_drain + 364
8 libdispatch.dylib 0x1454c _dispatch_worker_thread2 + 156
9 libsystem_pthread.dylib 0x4624 _pthread_wqthread + 232
10 libsystem_pthread.dylib 0x19f8 start_wqthread + 8

Boost

Answer 1

Media Engineer OP

Apple

May ’25

Crashing in objc_retain is often an indication of a use-after-free issue or memory corruption bug.

Could you file a feedback report with a sysdiagnose taken after a repro of the issue with the address sanitizer enabled.

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