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Unhandled Null Exception in CFData #18551

@Tobi-Tobi

Description

@Tobi-Tobi

Steps to Reproduce

  1. Sadly, I don't know.
    Users are reporting that they open up the app after some time of inactivity and then it crashes.

I do have crash reports:

Crash report one.log

Here is the crash report from the AppCenter, yet again that probably got less information:

Details
Incident Identifier: 7e76a6ed-851b-47da-be0e-f45f22992d38
CrashReporter Key:   DA7F2F3B-5B88-485A-8545-8330F002F4FE
Hardware Model:      iPhone12,1
Process:         My.App.iOS [63739]
Path:            /private/var/containers/Bundle/Application/136B6E12-1A81-412B-AA35-E6FA2D74724A/My.App.iOS.app/My.App.iOS
Identifier:      com.my.app
Version:         4.2.2 (57803)
Code Type:       arm64
Parent Process:   [1]

Date/Time:       2023-07-09T10:00:30.999Z
Launch Time:     2023-07-08T19:14:54Z
OS Version:      iPhone OS 16.5 (20F66)
Report Version:  104

Exception Type:  SIGABRT
Exception Codes: #0 at 0x1dc5e2558
Crashed Thread:  0

Application Specific Information:
*** Terminating app due to uncaught exception 'SIGABRT', reason: 'Value cannot be null.
Parameter name: native'

Xamarin Exception Stack:
System.ArgumentNullException: Value cannot be null.
Parameter name: native
  at (wrapper managed-to-native) System.Runtime.InteropServices.Marshal.copy_from_unmanaged_fixed(intptr,int,System.Array,int,void*)
  at System.Runtime.InteropServices.Marshal.copy_from_unmanaged (System.IntPtr source, System.Int32 startIndex, System.Array destination, System.Int32 length) <0x10361a3e0 + 0x00047> in <aae03b95719e488f8a163bae4d2b5dcb#2aaf0db881281529a40d8a19275df360>:0
  at System.Runtime.InteropServices.Marshal.Copy (System.IntPtr source, System.Byte[] destination, System.Int32 startIndex, System.Int32 length) <0x10361a444 + 0x00087> in <aae03b95719e488f8a163bae4d2b5dcb#2aaf0db881281529a40d8a19275df360>:0
  at CoreFoundation.CFData.GetBuffer () <0x103f71784 + 0x0006b> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at CoreFoundation.CFSocket.OnCallback (System.IntPtr s, System.nuint type, System.IntPtr address, System.IntPtr data, System.IntPtr info) <0x103f725d8 + 0x0011b> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at (wrapper native-to-managed) CoreFoundation.CFSocket.OnCallback(intptr,System.nuint,intptr,intptr,intptr)
  at (wrapper managed-to-native) UIKit.UIApplication.xamarin_UIApplicationMain(int,string[],intptr,intptr,intptr&)
  at UIKit.UIApplication.UIApplicationMain (System.Int32 argc, System.String[] argv, System.IntPtr principalClassName, System.IntPtr delegateClassName) <0x103f82330 + 0x0004b> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at UIKit.UIApplication.Main (System.String[] args, System.Type principalClass, System.Type delegateClass) <0x103f82410 + 0x000f3> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at My.App.iOS.IosApplication.Main (System.String[] args) <0x10307a218 + 0x00033> in <feed1ae8056b4ac39f951d31d3c7f420#2aaf0db881281529a40d8a19275df360>:0
  at null.null
  at (wrapper managed-to-native) UIKit.UIApplication.xamarin_UIApplicationMain(int,string[],intptr,intptr,intptr&)
  at UIKit.UIApplication.UIApplicationMain (System.Int32 argc, System.String[] argv, System.IntPtr principalClassName, System.IntPtr delegateClassName) <0x103f82330 + 0x0004b> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at UIKit.UIApplication.Main (System.String[] args, System.Type principalClass, System.Type delegateClass) <0x103f82410 + 0x000f3> in <234f9d1731fd4e1ebf977b0a61b8dd61#2aaf0db881281529a40d8a19275df360>:0
  at My.App.iOS.IosApplication.Main (System.String[] args) <0x10307a218 + 0x00033> in <feed1ae8056b4ac39f951d31d3c7f420#2aaf0db881281529a40d8a19275df360>:0

Thread 0 Crashed:
0   libsystem_kernel.dylib               0x00000001dc5e2558 __pthread_kill + 8
1   libsystem_c.dylib                    0x00000001a4b9f178 abort + 176
2   My.App.iOS                         0x0000000108017408 0x102eb0000 + 85357576
3   My.App.iOS                         0x0000000107eddd18 0x102eb0000 + 84073752
4   My.App.iOS                         0x0000000107e72e10 0x102eb0000 + 83635728
5   My.App.iOS                         0x0000000107e717e4 0x102eb0000 + 83630052
6   My.App.iOS                         0x0000000107e674dc 0x102eb0000 + 83588316
7   My.App.iOS                         0x000000010348f5cc 0x102eb0000 + 6157772
8   My.App.iOS                         0x0000000107f4a598 0x102eb0000 + 84518296
9   My.App.iOS                         0x0000000108017078 0x102eb0000 + 85356664
10  My.App.iOS                         0x0000000107e72368 0x102eb0000 + 83633000
11  My.App.iOS                         0x0000000107e737e8 0x102eb0000 + 83638248
12  My.App.iOS                         0x0000000107e67634 0x102eb0000 + 83588660
13  My.App.iOS                         0x0000000103490798 0x102eb0000 + 6162328
14  My.App.iOS                         0x0000000103f72858 0x102eb0000 + 17573976
15  My.App.iOS                         0x0000000103f0d2b0 0x102eb0000 + 17158832
16  CoreFoundation                       0x000000019d7864e4 __CFSocketPerformV0 + 732
17  CoreFoundation                       0x000000019d742128 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
18  CoreFoundation                       0x000000019d74e7b4 __CFRunLoopDoSource0 + 172
19  CoreFoundation                       0x000000019d6d35e8 __CFRunLoopDoSources0 + 240
20  CoreFoundation                       0x000000019d6e90d4 __CFRunLoopRun + 824
21  CoreFoundation                       0x000000019d6ee3ec CFRunLoopRunSpecific + 608
22  GraphicsServices                     0x00000001d8bb335c GSEventRunModal + 160
23  UIKitCore                            0x000000019fa7b6e8 -[UIApplication _run] + 884
24  UIKitCore                            0x000000019fa7b34c UIApplicationMain + 336
25  My.App.iOS                         0x000000010800b9a0 0x102eb0000 + 85309856
26  My.App.iOS                         0x0000000103efd6fc 0x102eb0000 + 17094396
27  My.App.iOS                         0x0000000103f8237c 0x102eb0000 + 17638268
28  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
29  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
30  My.App.iOS                         0x0000000107f44b28 0x102eb0000 + 84495144
31  My.App.iOS                         0x0000000107e62ee4 0x102eb0000 + 83570404
32  My.App.iOS                         0x000000010801fd64 0x102eb0000 + 85392740
33  My.App.iOS                         0x0000000103000df4 0x102eb0000 + 1379828
34  ???                                  0x00000001bcbeedec 0x0 + 0

Thread 1:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 2:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107fe1a48 0x102eb0000 + 85137992
2   libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
3   libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 3:
0   libsystem_kernel.dylib               0x00000001dc5dbc00 semaphore_wait_trap + 8
1   My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
2   My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
3   libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
4   libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 4:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 5:
0   libsystem_kernel.dylib               0x00000001dc5dbc84 mach_msg2_trap + 8
1   libsystem_kernel.dylib               0x00000001dc5eee2c mach_msg_overwrite + 536
2   libsystem_kernel.dylib               0x00000001dc5dc1c8 mach_msg + 20
3   CoreFoundation                       0x000000019d6e8024 __CFRunLoopServiceMachPort + 156
4   CoreFoundation                       0x000000019d6e9250 __CFRunLoopRun + 1204
5   CoreFoundation                       0x000000019d6ee3ec CFRunLoopRunSpecific + 608
6   Foundation                           0x0000000197976fd4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 208
7   Foundation                           0x0000000197976ebc -[NSRunLoop(NSRunLoop) runUntilDate:] + 60
8   UIKitCore                            0x000000019fbae3fc -[UIEventFetcher threadMain] + 412
9   Foundation                           0x0000000197990544 __NSThread__start__ + 712
10  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
11  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 6:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 7:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 8:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107ff0fc4 0x102eb0000 + 85200836
2   My.App.iOS                         0x0000000107ff9d2c 0x102eb0000 + 85237036
3   My.App.iOS                         0x0000000107f80524 0x102eb0000 + 84739364
4   My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
5   My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
6   libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
7   libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 9:
0   My.App.iOS                         0x0000000107e60534 0x102eb0000 + 83559732
1   My.App.iOS                         0x0000000107e576b0 0x102eb0000 + 83523248
2   My.App.iOS                         0x0000000107e58168 0x102eb0000 + 83525992
3   My.App.iOS                         0x0000000107e7fecc 0x102eb0000 + 83689164
4   My.App.iOS                         0x0000000107e87410 0x102eb0000 + 83719184
5   My.App.iOS                         0x0000000107e86ef4 0x102eb0000 + 83717876
6   My.App.iOS                         0x000000010348e95c 0x102eb0000 + 6154588
7   My.App.iOS                         0x000000010403fb50 0x102eb0000 + 18414416
8   My.App.iOS                         0x00000001036217c4 0x102eb0000 + 7804868
9   My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
10  My.App.iOS                         0x00000001035c8e24 0x102eb0000 + 7441956
11  My.App.iOS                         0x00000001035c7854 0x102eb0000 + 7436372
12  My.App.iOS                         0x0000000103755a68 0x102eb0000 + 9067112
13  My.App.iOS                         0x000000010392ac14 0x102eb0000 + 10988564
14  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
15  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
16  My.App.iOS                         0x0000000107f4ae08 0x102eb0000 + 84520456
17  My.App.iOS                         0x0000000107efd6fc 0x102eb0000 + 84203260
18  My.App.iOS                         0x0000000103390708 0x102eb0000 + 5113608
19  My.App.iOS                         0x00000001035f3f3c 0x102eb0000 + 7618364
20  My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
21  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
22  My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
23  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
24  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
25  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
26  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
27  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
28  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 10:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107ff0fc4 0x102eb0000 + 85200836
2   My.App.iOS                         0x0000000107f97aa0 0x102eb0000 + 84834976
3   My.App.iOS                         0x0000000107f97978 0x102eb0000 + 84834680
4   My.App.iOS                         0x0000000107f97b9c 0x102eb0000 + 84835228
5   My.App.iOS                         0x0000000107f868a4 0x102eb0000 + 84764836
6   My.App.iOS                         0x0000000107f02844 0x102eb0000 + 84224068
7   My.App.iOS                         0x000000010338d788 0x102eb0000 + 5101448
8   My.App.iOS                         0x00000001035bc40c 0x102eb0000 + 7390220
9   My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
10  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
11  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
12  My.App.iOS                         0x0000000107f441bc 0x102eb0000 + 84492732
13  My.App.iOS                         0x0000000107f8c470 0x102eb0000 + 84788336
14  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
15  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
16  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 11:
0   libsystem_kernel.dylib               0x00000001dc5dc7e8 __select + 8
1   libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
2   libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 12:
0   libsystem_kernel.dylib               0x00000001dc5dbc84 mach_msg2_trap + 8
1   libsystem_kernel.dylib               0x00000001dc5eee2c mach_msg_overwrite + 536
2   libsystem_kernel.dylib               0x00000001dc5dc1c8 mach_msg + 20
3   CoreFoundation                       0x000000019d6e8024 __CFRunLoopServiceMachPort + 156
4   CoreFoundation                       0x000000019d6e9250 __CFRunLoopRun + 1204
5   CoreFoundation                       0x000000019d6ee3ec CFRunLoopRunSpecific + 608
6   CFNetwork                            0x000000019e8d9580 _CFURLStorageSessionDisableCache + 60896
7   Foundation                           0x0000000197990544 __NSThread__start__ + 712
8   libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
9   libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 13:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107ff0fec 0x102eb0000 + 85200876
2   My.App.iOS                         0x0000000107f97aa0 0x102eb0000 + 84834976
3   My.App.iOS                         0x0000000107f97978 0x102eb0000 + 84834680
4   My.App.iOS                         0x0000000107f313c4 0x102eb0000 + 84415428
5   My.App.iOS                         0x0000000107f00e28 0x102eb0000 + 84217384
6   My.App.iOS                         0x000000010338bd78 0x102eb0000 + 5094776
7   My.App.iOS                         0x00000001035b60d0 0x102eb0000 + 7364816
8   My.App.iOS                         0x00000001035acce4 0x102eb0000 + 7326948
9   My.App.iOS                         0x000000010349014c 0x102eb0000 + 6160716
10  My.App.iOS                         0x000000010497954c 0x102eb0000 + 28087628
11  My.App.iOS                         0x00000001035b664c 0x102eb0000 + 7366220
12  My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
13  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
14  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
15  My.App.iOS                         0x0000000107f441bc 0x102eb0000 + 84492732
16  My.App.iOS                         0x0000000107f8c470 0x102eb0000 + 84788336
17  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
18  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
19  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 14:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107ff0fec 0x102eb0000 + 85200876
2   My.App.iOS                         0x0000000107f97aa0 0x102eb0000 + 84834976
3   My.App.iOS                         0x0000000107f97978 0x102eb0000 + 84834680
4   My.App.iOS                         0x0000000107f313c4 0x102eb0000 + 84415428
5   My.App.iOS                         0x0000000107f00e28 0x102eb0000 + 84217384
6   My.App.iOS                         0x000000010338bd78 0x102eb0000 + 5094776
7   My.App.iOS                         0x00000001035b60d0 0x102eb0000 + 7364816
8   My.App.iOS                         0x00000001035acce4 0x102eb0000 + 7326948
9   My.App.iOS                         0x000000010349014c 0x102eb0000 + 6160716
10  My.App.iOS                         0x000000010497954c 0x102eb0000 + 28087628
11  My.App.iOS                         0x00000001035b664c 0x102eb0000 + 7366220
12  My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
13  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
14  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
15  My.App.iOS                         0x0000000107f441bc 0x102eb0000 + 84492732
16  My.App.iOS                         0x0000000107f8c470 0x102eb0000 + 84788336
17  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
18  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
19  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 15:
0   libsystem_kernel.dylib               0x00000001dc5dc558 __psynch_cvwait + 8
1   My.App.iOS                         0x0000000107ff0fec 0x102eb0000 + 85200876
2   My.App.iOS                         0x0000000107f97aa0 0x102eb0000 + 84834976
3   My.App.iOS                         0x0000000107f97978 0x102eb0000 + 84834680
4   My.App.iOS                         0x0000000107f313c4 0x102eb0000 + 84415428
5   My.App.iOS                         0x0000000107f00e28 0x102eb0000 + 84217384
6   My.App.iOS                         0x000000010338bd78 0x102eb0000 + 5094776
7   My.App.iOS                         0x00000001035b60d0 0x102eb0000 + 7364816
8   My.App.iOS                         0x00000001035acce4 0x102eb0000 + 7326948
9   My.App.iOS                         0x000000010349014c 0x102eb0000 + 6160716
10  My.App.iOS                         0x000000010497954c 0x102eb0000 + 28087628
11  My.App.iOS                         0x00000001035b664c 0x102eb0000 + 7366220
12  My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
13  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
14  My.App.iOS                         0x0000000107f3e820 0x102eb0000 + 84469792
15  My.App.iOS                         0x0000000107f441bc 0x102eb0000 + 84492732
16  My.App.iOS                         0x0000000107f8c470 0x102eb0000 + 84788336
17  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
18  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
19  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 16:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 17:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 18:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 19:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 20:
0   libsystem_kernel.dylib               0x00000001dc5dc18c __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001fd41cb7c start_wqthread + 4

Thread 21:
0   My.App.iOS                         0x0000000107e60534 0x102eb0000 + 83559732
1   My.App.iOS                         0x0000000107e576b0 0x102eb0000 + 83523248
2   My.App.iOS                         0x0000000107e58168 0x102eb0000 + 83525992
3   My.App.iOS                         0x0000000107e7fecc 0x102eb0000 + 83689164
4   My.App.iOS                         0x0000000107e87d90 0x102eb0000 + 83721616
5   My.App.iOS                         0x000000010348f12c 0x102eb0000 + 6156588
6   My.App.iOS                         0x00000001035bde08 0x102eb0000 + 7396872
7   My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
8   My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
9   My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
10  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
11  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
12  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
13  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
14  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
15  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 22:
0   My.App.iOS                         0x0000000107e60534 0x102eb0000 + 83559732
1   My.App.iOS                         0x0000000107e576b0 0x102eb0000 + 83523248
2   My.App.iOS                         0x0000000107e58168 0x102eb0000 + 83525992
3   My.App.iOS                         0x0000000107e7fecc 0x102eb0000 + 83689164
4   My.App.iOS                         0x0000000107e87d90 0x102eb0000 + 83721616
5   My.App.iOS                         0x000000010348f12c 0x102eb0000 + 6156588
6   My.App.iOS                         0x00000001035bde08 0x102eb0000 + 7396872
7   My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
8   My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
9   My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
10  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
11  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
12  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
13  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
14  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
15  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 23:
0   My.App.iOS                         0x0000000107e59478 0x102eb0000 + 83530872
1   My.App.iOS                         0x0000000107e87a18 0x102eb0000 + 83720728
2   My.App.iOS                         0x000000010348ef9c 0x102eb0000 + 6156188
3   My.App.iOS                         0x0000000105c2c700 0x102eb0000 + 47695616
4   My.App.iOS                         0x00000001036217c4 0x102eb0000 + 7804868
5   My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
6   My.App.iOS                         0x00000001035c8e24 0x102eb0000 + 7441956
7   My.App.iOS                         0x00000001035c7854 0x102eb0000 + 7436372
8   My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
9   My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
10  My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
11  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
12  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
13  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
14  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
15  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
16  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 24:
0   My.App.iOS                         0x0000000107e60534 0x102eb0000 + 83559732
1   My.App.iOS                         0x0000000107e576b0 0x102eb0000 + 83523248
2   My.App.iOS                         0x0000000107e58168 0x102eb0000 + 83525992
3   My.App.iOS                         0x0000000107e7fecc 0x102eb0000 + 83689164
4   My.App.iOS                         0x0000000107e87d90 0x102eb0000 + 83721616
5   My.App.iOS                         0x000000010348f12c 0x102eb0000 + 6156588
6   My.App.iOS                         0x00000001035bde08 0x102eb0000 + 7396872
7   My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
8   My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
9   My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
10  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
11  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
12  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
13  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
14  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
15  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 25:
0   My.App.iOS                         0x0000000107f24b54 0x102eb0000 + 84364116
1   My.App.iOS                         0x0000000107f0dd58 0x102eb0000 + 84270424
2   My.App.iOS                         0x0000000107f0c1e8 0x102eb0000 + 84263400
3   My.App.iOS                         0x0000000107e6062c 0x102eb0000 + 83559980
4   My.App.iOS                         0x0000000107e576b0 0x102eb0000 + 83523248
5   My.App.iOS                         0x0000000107e57568 0x102eb0000 + 83522920
6   My.App.iOS                         0x0000000107e70760 0x102eb0000 + 83625824
7   My.App.iOS                         0x00000001033a1930 0x102eb0000 + 5183792
8   My.App.iOS                         0x00000001036ac4f8 0x102eb0000 + 8373496
9   My.App.iOS                         0x000000010319f9d8 0x102eb0000 + 3078616
10  My.App.iOS                         0x000000010714b270 0x102eb0000 + 69841520
11  My.App.iOS                         0x00000001036217c4 0x102eb0000 + 7804868
12  My.App.iOS                         0x00000001035b4578 0x102eb0000 + 7357816
13  My.App.iOS                         0x00000001035c8e24 0x102eb0000 + 7441956
14  My.App.iOS                         0x00000001035c7854 0x102eb0000 + 7436372
15  My.App.iOS                         0x0000000103fb82d4 0x102eb0000 + 17859284
16  My.App.iOS                         0x0000000107e84bd4 0x102eb0000 + 83708884
17  My.App.iOS                         0x0000000107f4010c 0x102eb0000 + 84476172
18  My.App.iOS                         0x0000000107f83370 0x102eb0000 + 84751216
19  My.App.iOS                         0x0000000107f80be4 0x102eb0000 + 84741092
20  My.App.iOS                         0x0000000107f8c378 0x102eb0000 + 84788088
21  My.App.iOS                         0x0000000107f8c1fc 0x102eb0000 + 84787708
22  libsystem_pthread.dylib              0x00000001fd41d6b8 _pthread_start + 144
23  libsystem_pthread.dylib              0x00000001fd41cb88 thread_start + 4

Thread 0 crashed with arm64 Thread State:
   x21: 0x00000001f3f90160     x2: 0x0000000000000000    x16: 0x0000000000000148     x3: 0x0000000000000000
   x22: 0x0000000000000000     x4: 0x000000000000000b    x17: 0x00000001f3f90080   cpsr: 0x0000000040000000
    x5: 0x000000011771bc00    x23: 0x000000010a812c00     x6: 0x0000000000000c00    x18: 0x0000000000000000
   x10: 0x0000000000000225     lr: 0x00000001fd423118     x7: 0x0000000000000b00    x24: 0x0000000109676e80
   x11: 0x0000000000000000     x8: 0xd779aff9e5fb4525    x19: 0x0000000000000006    x25: 0x000000016cf4be10
    x9: 0xd779aff8160245a5    x12: 0x00000001092071e0     fp: 0x000000016cf4b010    x26: 0x0000000000000001
   x13: 0x0000000109676e83     pc: 0x00000001dc5e2558    x27: 0x00000001085dde30    x14: 0x00000000000000e0
   x20: 0x0000000000000103     x0: 0x0000000000000000     sp: 0x000000016cf4aff0    x28: 0x0000000000ffffff
   x15: 0x0000000080000000     x1: 0x0000000000000000

Binary Images:
0x0000000102eb0000 -        0x000000010818ffff +My.App.iOS arm64  <6433091d24543decadd76c191b78f997> /private/var/containers/Bundle/Application/136B6E12-1A81-412B-AA35-E6FA2D74724A/My.App.iOS.app/My.App.iOS
0x0000000108a94000 -        0x0000000108f0bfff +libSkiaSharp arm64  <f7dbd0bed83735a78b9327012f2d6a33> /private/var/containers/Bundle/Application/136B6E12-1A81-412B-AA35-E6FA2D74724A/My.App.iOS.app/Frameworks/libSkiaSharp.framework/libSkiaSharp
0x0000000108f6c000 -        0x00000001090d7fff +LiteCore arm64  <aa6a306bd1ee394597a4c16fec3bd0fc> /private/var/containers/Bundle/Application/136B6E12-1A81-412B-AA35-E6FA2D74724A/My.App.iOS.app/Frameworks/LiteCore.framework/LiteCore
0x0000000197935000 -        0x0000000198212fff  Foundation arm64e  <6e76dc9611af3b2eb71e215f9cc6e822> /System/Library/Frameworks/Foundation.framework/Foundation
0x000000019d66f000 -        0x000000019da56fff  CoreFoundation arm64e  <4230c12242e8383bbeecee7b61f8bb61> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x000000019e680000 -        0x000000019ea4bfff  CFNetwork arm64e  <6aafe7c4f1c43020ad1670591c86d7b0> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x000000019f6de000 -        0x00000001a0f02fff  UIKitCore arm64e  <b3834960244b34e49ea0ca4bb44ef0f3> /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore
0x00000001a4b82000 -        0x00000001a4bffff3  libsystem_c.dylib arm64e  <3548f8ee7a073b678d699c7d42096513> /usr/lib/system/libsystem_c.dylib
0x00000001d8bb2000 -        0x00000001d8bbafff  GraphicsServices arm64e  <e830ad84d6123b6b8de7ea61a786d132> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x00000001dc5db000 -        0x00000001dc612ff7  libsystem_kernel.dylib arm64e  <2f78311097393f18a2345fb92512529d> /usr/lib/system/libsystem_kernel.dylib
0x00000001fd41c000 -        0x00000001fd427ff3  libsystem_pthread.dylib arm64e  <8894310a745f340799f01fd54442561d> /usr/lib/system/libsystem_pthread.dylib

Expected Behavior

The CFSocket and CFData classes should be null compliant. Maybe it is a problem of the Marshal class, then we'd need to take this somewhere else.

Actual Behavior

The CFSocket and CFData classes are not null compliant. If a developer doesn't notice their own mistakes their app will crash on them in some library code.

Environment

Version information
Visual Studio Community 2022 for Mac
Version 17.5.2 (build 14)
Installation UUID: a41e82af-0571-4690-8bc6-ff13103248b3

Runtime
.NET 7.0.1 (64-bit)
Architecture: Arm64
Microsoft.macOS.Sdk 12.3.2372; git-rev-head:754abbf6a3563f6267e5717ae832b4ac25b1f2fb; git-branch:release/7.0.1xx-xcode13.3

Roslyn (Language Service)
4.5.0-3.23056.2+97881342e427ff5cdcba8f12b12ff8e6f3564431

NuGet
Version: 6.4.0.117

Xamarin Designer
Version: 17.5.3.47
Hash: e8b5d371c3
Branch: remotes/origin/d17-5
Build date: 2023-03-09 19:43:36 UTC

.NET SDK (Arm64)
SDK: /usr/local/share/dotnet/sdk/7.0.202/Sdks
SDK Versions:
	7.0.202
	7.0.200
	6.0.407
	6.0.404
MSBuild SDKs: /Applications/Visual Studio.app/Contents/MonoBundle/MSBuild/Current/bin/Sdks

.NET SDK (x64)
SDK Versions:
	6.0.106
	5.0.408
	3.1.420

.NET Runtime (Arm64)
Runtime: /usr/local/share/dotnet/dotnet
Runtime Versions:
	7.0.4
	7.0.3
	6.0.15
	6.0.12

.NET Runtime (x64)
Runtime: /usr/local/share/dotnet/x64/dotnet
Runtime Versions:
	6.0.6
	5.0.17
	3.1.26

Xamarin.Profiler
Version: 1.8.0.49
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler

Updater
Version: 11

Apple Developer Tools
Xcode: 14.2 21534
Build: 14C18

Xamarin.Mac
Version: 9.1.0.5 Visual Studio Community
Hash: 7738c90c9
Branch: xcode14.2
Build date: 2023-01-25 15:56:14-0500

Xamarin.iOS
Version: 16.2.0.5 Visual Studio Community
Hash: 7738c90c9
Branch: xcode14.2
Build date: 2023-01-25 15:56:15-0500

Xamarin.Android
Version: 13.2.0.0 (Visual Studio Community)
Commit: xamarin-android/d17-5/797e2e1
Android SDK: /Users/gitlab/Library/Android/sdk
	Supported Android versions:
		12.1 (API level 32)
		12.0 (API level 31)
		11.0 (API level 30)
		13.0 (API level 33)

SDK Command-line Tools Version: 7.0
SDK Platform Tools Version: 34.0.1
SDK Build Tools Version: 34.0.0 rc2

Build Information: 
Mono: 6dd9def
Java.Interop: xamarin/java.interop/main@149d70fe
SQLite: xamarin/sqlite/3.40.0@fdc1e34
Xamarin.Android Tools: xamarin/xamarin-android-tools/main@9f02d77

Microsoft Build of OpenJDK
Java SDK: /Library/Java/JavaVirtualMachines/microsoft-11.jdk
11.0.17
Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL

Eclipse Temurin JDK
Java SDK: /Library/Java/JavaVirtualMachines/temurin-8.jdk
1.8.0.302
Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL

Android SDK Manager
Version: 17.5.0.33
Hash: f0c0c52
Branch: remotes/origin/d17-5~2
Build date: 2023-03-09 19:43:41 UTC

Android Device Manager
Version: 0.0.0.1245
Hash: 7f8a990
Branch: 7f8a990
Build date: 2023-03-09 19:43:41 UTC

Build Information
Release ID: 1705020014
Git revision: f95e127ba5837148420d81c7c14c47ca8eade102
Build date: 2023-03-09 19:41:47+00
Build branch: release-17.5
Build lane: release-17.5

Operating System
Mac OS X 13.2.1
Darwin 22.3.0 Darwin Kernel Version 22.3.0
    Mon Jan 30 20:39:35 PST 2023
    root:xnu-8792.81.3~2/RELEASE_ARM64_T8103 arm64

Build Logs

build.log

Example Project (If Possible)

As I am not able to reproduce the crash myself I cannot create a test-project which reproduces the error.

Metadata

Metadata

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