iOS14 Crash (EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000000)

Question

Created Feb ’21

Replies 4

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Participants 3

Since the release of iPhone 12, I have received reports from iPhone 12 users about the crash problem. Later, I discovered that this problem occurred not only in iPhone 12, but also in other models, but most users said “App Crash after updating iOS 14".

This problem does not occur to all users (approximately one in a thousand), but the user who reinstalls the app still crashes in the same place.

I have tried several methods (such as using different versions of xcode build App), but still not solved...

And all the people around me who use iPhone can’t reproduce this problem, which also makes testing difficult

Does anyone have any ideas? Or how should I solve it?

Crash: EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000000

Code Block Crashed: com.apple.main-thread
0  CoreFoundation                 0x183e0c6f4 CFStringGetLength + 8
1  MY_APP                    0x10066ca80 CGPKCS5_PBKDF2_gen_keyiv + 3082 (CGCryptoLib.c:3082)
2  MY_APP                    0x100578194 +[MOTPs NewTransfer:bEncrypt:] + 93 (MOTPs.m:93)
3  MY_APP                    0x1005773e4 +[Profile getProfileArray] + 674 (Profile.m:674)
4  MY_APP                    0x100543718 -[AppDelegate updateLogo] + 88 (AppDelegate.m:88)
5  MY_APP                    0x10054365c -[AppDelegate application:didFinishLaunchingWithOptions:] + 80 (AppDelegate.m:80)
6  UIKitCore                      0x18681b228 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 360
7  UIKitCore                      0x18681d290 -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] + 5136
8  UIKitCore                      0x186822cec -[UIApplication _runWithMainScene:transitionContext:completion:] + 1244
9  UIKitCore                      0x185e78c74 -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] + 152
10 UIKitCore                      0x1863e6f9c _UIScenePerformActionsWithLifecycleActionMask + 112
11 UIKitCore                      0x185e7980c __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 224
12 UIKitCore                      0x185e79214 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 300
13 UIKitCore                      0x185e7961c -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 768
14 UIKitCore                      0x185e78e58 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 340
15 UIKitCore                      0x185e813a4 __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke + 196
16 UIKitCore                      0x1862f360c +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:] + 892
17 UIKitCore                      0x1863ff6c4 _UISceneSettingsDiffActionPerformChangesWithTransitionContext + 272
18 UIKitCore                      0x185e8109c -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 384
19 UIKitCore                      0x185ca85a0 __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke + 776
20 UIKitCore                      0x185ca6f14 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 256
21 UIKitCore                      0x185ca81c8 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 248
22 UIKitCore                      0x186820e8c -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 572
23 UIKitCore                      0x18631ce38 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 388
24 FrontBoardServices             0x193bd43bc -[FBSScene _callOutQueue_agent_didCreateWithTransitionContext:completion:] + 432
25 FrontBoardServices             0x193bffd04 __94-[FBSWorkspaceScenesClient createWithSceneID:groupID:parameters:transitionContext:completion:]_block_invoke.200 + 128
26 FrontBoardServices             0x193be34a0 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 240
27 FrontBoardServices             0x193bff9c8 __94-[FBSWorkspaceScenesClient createWithSceneID:groupID:parameters:transitionContext:completion:]_block_invoke + 372
28 libdispatch.dylib              0x183a5ddb0 _dispatch_client_callout + 20
29 libdispatch.dylib              0x183a61738 _dispatch_block_invoke_direct + 268
30 FrontBoardServices             0x193c28250 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 48
31 FrontBoardServices             0x193c27ee0 -[FBSSerialQueue _targetQueue_performNextIfPossible] + 448
32 FrontBoardServices             0x193c28434 -[FBSSerialQueue _performNextFromRunLoopSource] + 32
33 CoreFoundation                 0x183de576c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
34 CoreFoundation                 0x183de5668 __CFRunLoopDoSource0 + 208
35 CoreFoundation                 0x183de4960 __CFRunLoopDoSources0 + 268
36 CoreFoundation                 0x183ddea8c __CFRunLoopRun + 824
37 CoreFoundation                 0x183dde21c CFRunLoopRunSpecific + 600
38 GraphicsServices               0x19b9aa784 GSEventRunModal + 164
39 UIKitCore                      0x18681eee8 -[UIApplication _run] + 1072
40 UIKitCore                      0x18682475c UIApplicationMain + 168
41 MOTP Client                    0x100543328 main + 16 (main.m:16)
42 libdyld.dylib                  0x183a9e6b0 start + 4

Answered by DTS Engineer in 663847022

Code Block  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000

This indicates that your app crash because it tried to referenced NULL.

Code Block  0   CoreFoundation … CFStringGetLength + 8 (CFString.c:2396)
1   MOTP Client    … CGPKCS5_PBKDF2_gen_keyiv + 200 (CGCryptoLib.c:3082)

Frame 0 shows that it crashed in CFStringGetLength. That function only has one parameter, the string itself, so it’s likely that was nil. So you then need to look to its caller, that is, frame 1. This is your code, and you should debug things from there. Look at line 3082 of CGCryptoLib.c and work back through the code to find out where the nil string came from.

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

Boost

Answer 1

DTS Engineer OP

Apple

Feb ’21

Since the release of iPhone 12, I have received reports from iPhone 12
users about the crash problem.

Can you post a complete Apple crash report for this? Use the text attachment feature (the paperclip icon) to avoid clogging up the timeline.

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

0

Answer 2

alvin313 OP

Feb ’21

Hi eskimo

this is crash log

Crash Log

Thanks for your time

0

Answer 3

DTS Engineer OP

Apple

Feb ’21

Accepted Answer

Code Block  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000

This indicates that your app crash because it tried to referenced NULL.

Code Block  0   CoreFoundation … CFStringGetLength + 8 (CFString.c:2396)
1   MOTP Client    … CGPKCS5_PBKDF2_gen_keyiv + 200 (CGCryptoLib.c:3082)

Frame 0 shows that it crashed in CFStringGetLength. That function only has one parameter, the string itself, so it’s likely that was nil. So you then need to look to its caller, that is, frame 1. This is your code, and you should debug things from there. Look at line 3082 of CGCryptoLib.c and work back through the code to find out where the nil string came from.

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

2

Answer 4

Prince_Choudhary OP

Feb ’24

This is crash log :-

Crashed: NSManagedObjectContext 0x2837bb400 0 libobjc.A.dylib 0x4820 objc_msgSend + 32 1 CoreData 0x5837c -[NSManagedObjectContext dispose:] + 400 2 CoreData 0x58098 -[NSManagedObjectContext dealloc] + 604 3 CoreData 0x57d7c __internalBlockToDeallocNSManagedObjectContext_block_invoke + 56 4 CoreData 0x2074c developerSubmittedBlockToNSManagedObjectContextPerform + 156 5 libdispatch.dylib 0x4300 _dispatch_client_callout + 20 6 libdispatch.dylib 0xb894 _dispatch_lane_serial_drain + 748 7 libdispatch.dylib 0xc3c4 _dispatch_lane_invoke + 380 8 libdispatch.dylib 0x17004 _dispatch_root_queue_drain_deferred_wlh + 288 9 libdispatch.dylib 0x16878 _dispatch_workloop_worker_thread + 404 10 libsystem_pthread.dylib 0x1964 _pthread_wqthread + 288 11 libsystem_pthread.dylib 0x1a04 start_wqthread + 8

0