EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000008

[khaider959]

Describe the bug

Crash

Crashed: com.amazonaws.commonruntime.eventloop.4ed3fdcb-19c3-5dd1-2997-894b07eefa46
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000008

0 test_app 0x2727e8 aws_channel_slot_downstream_read_window + 1009 (channel.c:1009)
1 test_app 0x27ae44 s_process_incoming_data_task + 400 (nw_socket.c:400)
2 test_app 0x26d690 s_run_all + 34 (linked_list.inl:34)
3 test_app 0x277030 s_run_iteration + 537 (dispatch_queue_event_loop.c:537)
4 libdispatch.dylib 0x1b584 _dispatch_client_callout + 16
5 libdispatch.dylib 0xa2d0 _dispatch_lane_serial_drain + 740
6 libdispatch.dylib 0xadac _dispatch_lane_invoke + 388
7 libdispatch.dylib 0x151dc _dispatch_root_queue_drain_deferred_wlh + 292
8 libdispatch.dylib 0x14a60 _dispatch_workloop_worker_thread + 540
9 libsystem_pthread.dylib 0xa0c _pthread_wqthread + 292
10 libsystem_pthread.dylib 0xaac start_wqthread + 8

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

Application should not crash

Current Behavior

This causes the app to crash on iOS device

Reproduction Steps

Crash appears in production app on crashlytics

Possible Solution

No response

Additional Information/Context

No response

aws-crt-swift version used

0.53.0

Compiler and Version used

Xcode 16.4

Operating System and version

Mac mini M4 Pro MacOS 15.5

[xiazhvera]

We will track the issue in aws/aws-iot-device-sdk-swift#44.