iOS 17 beta 2: TCC_CRASHING_DUE_TO_PRIVACY_VIOLATION Crash Issue

On iOS 17 beta 1 or previous iOS versions, the [LAContext canEvaluatePolicy:error:] method works well without requiring the NSFaceIDUsageDescription key in the plist.

However, when iOS 17 beta 2 (21A5268h) released, we notice some crash issues related to TCC_CRASHING_DUE_TO_PRIVACY_VIOLATION. The crash termination reason suggests that an NSFaceIDUsageDescription key must be included in the plist file, providing a string value explaining to the user how the app uses Face ID data. It is important to note that we do not actually require this permission.

It is challenging to reproduce this issue, as it occurs sporadically without clear triggering conditions. These problems are likely associated with changes made to the LocalAuthentication or TCC frameworks within Apple's beta system.

Thread 1:
0   libsystem_kernel.dylib        	0x00000001e6a68ba0 semaphore_wait_trap + 8
1   libdispatch.dylib             	0x00000001a8a3e89c _dispatch_sema4_wait + 28 (lock.c:139)
2   libdispatch.dylib             	0x00000001a8a3ef4c _dispatch_semaphore_wait_slow + 132 (semaphore.c:132)
3   LocalAuthentication           	0x00000001d51349b8 -[LAClient _checkIdResultForTCC:synchronous:error:retryBlock:finally:] + 500 (LAClient.m:383)
4   LocalAuthentication           	0x00000001d5135828 __64-[LAClient evaluatePolicy:options:uiDelegate:synchronous:reply:]_block_invoke_2 + 180 (LAClient.m:547)
5   CoreFoundation                	0x00000001a0dd65b4 __invoking___ + 148
6   CoreFoundation                	0x00000001a0d83a0c -[NSInvocation invoke] + 428 (NSForwarding.m:3399)
7   Foundation                    	0x000000019fdffdf4 __NSXPCCONNECTION_IS_CALLING_OUT_TO_REPLY_BLOCK__ + 16 (NSXPCConnection.m:170)
8   Foundation                    	0x000000019fdd1f64 -[NSXPCConnection _decodeAndInvokeReplyBlockWithEvent:sequence:replyInfo:] + 520 (NSXPCConnection.m:316)
9   Foundation                    	0x00000001a050eb5c __88-[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:]_block_invoke_5 + 188 (NSXPCConnection.m:1662)
10  Foundation                    	0x000000019fd965fc -[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:] + 2244 (NSXPCConnection.m:1679)
11  CoreFoundation                	0x00000001a0d82c0c ___forwarding___ + 1008 (NSForwarding.m:3634)
12  CoreFoundation                	0x00000001a0de79d0 _CF_forwarding_prep_0 + 96
13  LocalAuthentication           	0x00000001d513573c __64-[LAClient evaluatePolicy:options:uiDelegate:synchronous:reply:]_block_invoke + 204 (LAClient.m:546)
14  LocalAuthentication           	0x00000001d5134fe4 __47-[LAClient _performSynchronous:callId:finally:]_block_invoke + 504 (LAClient.m:446)
15  libdispatch.dylib             	0x00000001a8a3e300 _dispatch_client_callout + 20 (object.m:561)
16  libdispatch.dylib             	0x00000001a8a4dce8 _dispatch_sync_invoke_and_complete + 56 (queue.c:1071)
17  LocalAuthentication           	0x00000001d5134dac -[LAClient _performSynchronous:callId:finally:] + 196 (LAClient.m:465)
18  LocalAuthentication           	0x00000001d5135634 -[LAClient evaluatePolicy:options:uiDelegate:synchronous:reply:] + 296 (LAClient.m:545)
19  LocalAuthentication           	0x00000001d513f38c -[LAContext _evaluatePolicy:options:synchronous:reply:] + 188 (LAContext.m:373)
20  LocalAuthentication           	0x00000001d513f084 -[LAContext _evaluatePolicy:options:log:cid:synchronous:reply:] + 388 (LAContext.m:348)
21  LocalAuthentication           	0x00000001d5124268 -[LAContext _evaluatePolicy:options:log:cid:error:] + 272 (LAContext.m:402)
22  LocalAuthentication           	0x00000001d5123fec -[LAContext canEvaluatePolicy:error:] + 276 (LAContext.m:548)
....


Thread 24 Crashed:

0   libsystem_kernel.dylib        	0x00000001e6a78394 __terminate_with_payload + 8

1   libsystem_kernel.dylib        	0x00000001e6a9aca0 abort_with_payload_wrapper_internal + 136 (terminate_with_reason.c:106)

2   libsystem_kernel.dylib        	0x00000001e6a9acb4 abort_with_payload + 16 (terminate_with_reason.c:124)

3   TCC                           	0x00000001c1471928 __TCC_CRASHING_DUE_TO_PRIVACY_VIOLATION__ + 172 (TCC.c:563)

4   TCC                           	0x00000001c14720a0 __TCCAccessRequest_block_invoke_7 + 600 (TCC.c:707)

5   TCC                           	0x00000001c146f154 __tccd_send_message_block_invoke + 624 (TCC.c:0)

6   libxpc.dylib                  	0x0000000208d09b14 _xpc_connection_reply_callout + 116 (serializer.c:119)

7   libxpc.dylib                  	0x0000000208cfc484 _xpc_connection_call_reply_async + 80 (connection.c:881)

8   libdispatch.dylib             	0x00000001a8a3e380 _dispatch_client_callout3 + 20 (object.m:587)

9   libdispatch.dylib             	0x00000001a8a5bb04 _dispatch_mach_msg_async_reply_invoke + 344 (mach.c:3102)

10  libdispatch.dylib             	0x00000001a8a50d40 _dispatch_root_queue_drain_deferred_item + 336 (queue.c:7011)

11  libdispatch.dylib             	0x00000001a8a50628 _dispatch_kevent_worker_thread + 500 (queue.c:6484)

12  libsystem_pthread.dylib       	0x0000000208ca8e88 _pthread_wqthread + 344 (pthread.c:2635)

13  libsystem_pthread.dylib       	0x0000000208ca8bf0 start_wqthread + 8

+1

Please file a bug about this.

Ideally your bug report would include a sysdiagnose log taken shortly after you see this problem. That’s tricky if you can’t reproduce it )-: If you’re in touch with a user who is seeing the issue, you could ask them to grab the sysdiagnose log for you.

Regardless, don’t lack the absence of a sysdiagnose log prevent you from filing a bug.

Please post your bug number, just for the record.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

+1

Folks, adding a +1 here doesn’t help. For this issue to be seen by the relevant folks, you need to file a bug. And I’d appreciate you posting your bug number here, just for the record.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

iOS 17 beta 2: TCC_CRASHING_DUE_TO_PRIVACY_VIOLATION Crash Issue
 
 
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