Runtime tests fall over when run with address sanitizer - Part2
adam-fowler opened this issue · 0 comments
adam-fowler commented
Once #88 is merged there are still a number of ASan issues. The tests that fail are
- GetSetStructTests.testGetSimple()
- All the ValueWitnessTableTests
All of these fail when accessing data in NominalMetadataType. The first fail is in numberOfFields.
Here is the ASan output
Test Case '-[RuntimeTests.GetSetStructTests testGetSimple]' started.
=================================================================
==6502==ERROR: AddressSanitizer: global-buffer-overflow on address 0x00010ecff141 at pc 0x00010014d0ad bp 0x7ffeefbfb170 sp 0x7ffeefbfa930
READ of size 44 at 0x00010ecff141 thread T0
#0 0x10014d0ac in wrap_memcpy+0x16c (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x1d0ac)
#1 0x10ecb6b1c in __swift_memcpy44_4+0x1c (RuntimeTests:x86_64+0xd9b1c)
#2 0x10eccb24e in NominalMetadataType.numberOfFields()+0x84e (RuntimeTests:x86_64+0xee24e)
#3 0x10eccbc84 in NominalMetadataType.fieldOffsets()+0x7e4 (RuntimeTests:x86_64+0xeec84)
#4 0x10ecccae7 in NominalMetadataType.properties()+0x527 (RuntimeTests:x86_64+0xefae7)
#5 0x10ecd1263 in StructMetadata.toTypeInfo()+0xa13 (RuntimeTests:x86_64+0xf4263)
#6 0x10ecd206f in protocol witness for TypeInfoConvertible.toTypeInfo() in conformance StructMetadata+0xcf (RuntimeTests:x86_64+0xf506f)
#7 0x10ece3b99 in typeInfo(of:)+0xa09 (RuntimeTests:x86_64+0x106b99)
#8 0x10ec1fefc in GetSetStructTests.testGetSimple() GetSetStructTests.swift:70
#9 0x10ec207d2 in @objc GetSetStructTests.testGetSimple() <compiler-generated>
#10 0x7fff205e856b in __invoking___+0x8b (CoreFoundation:x86_64h+0x6456b)
#11 0x7fff205e840f in -[NSInvocation invoke]+0x12e (CoreFoundation:x86_64h+0x6440f)
#12 0x1010a8bfc in __24-[XCTestCase invokeTest]_block_invoke_3+0x33 (XCTest:x86_64+0x30bfc)
#13 0x10117c3e8 in +[XCTSwiftErrorObservation observeErrorsInBlock:]+0x44 (XCTest:x86_64+0x1043e8)
#14 0x1010a8afe in __24-[XCTestCase invokeTest]_block_invoke_2+0x76 (XCTest:x86_64+0x30afe)
#15 0x10113fb75 in -[XCTMemoryChecker _assertInvalidObjectsDeallocatedAfterScope:]+0x40 (XCTest:x86_64+0xc7b75)
#16 0x1010b3a3d in -[XCTestCase assertInvalidObjectsDeallocatedAfterScope:]+0x3c (XCTest:x86_64+0x3ba3d)
#17 0x1010a8a44 in __24-[XCTestCase invokeTest]_block_invoke.262+0xc6 (XCTest:x86_64+0x30a44)
#18 0x1011205d7 in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:]+0xb2 (XCTest:x86_64+0xa85d7)
#19 0x1010a8507 in -[XCTestCase invokeTest]+0x40c (XCTest:x86_64+0x30507)
#20 0x1010aa17d in __26-[XCTestCase performTest:]_block_invoke_2+0x2a (XCTest:x86_64+0x3217d)
#21 0x1011205d7 in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:]+0xb2 (XCTest:x86_64+0xa85d7)
#22 0x1010aa0b4 in __26-[XCTestCase performTest:]_block_invoke.393+0x55 (XCTest:x86_64+0x320b4)
#23 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
#24 0x1010a98c1 in -[XCTestCase performTest:]+0x2bd (XCTest:x86_64+0x318c1)
#25 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
#26 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
#27 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
#28 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
#29 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
#30 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
#31 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
#32 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
#33 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
#34 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
#35 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
#36 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
#37 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
#38 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
#39 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
#40 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
#41 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
#42 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
#43 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
#44 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
#45 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
#46 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
#47 0x1011542ce in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke_2+0x93 (XCTest:x86_64+0xdc2ce)
#48 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
#49 0x101154233 in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke+0x6e (XCTest:x86_64+0xdc233)
#50 0x1011543b4 in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke.87+0x5f (XCTest:x86_64+0xdc3b4)
#51 0x1010ca684 in -[XCTestObservationCenter _observeTestExecutionForBlock:]+0x144 (XCTest:x86_64+0x52684)
#52 0x101153fab in -[XCTTestRunSession runTestsAndReturnError:]+0x1d8 (XCTest:x86_64+0xdbfab)
#53 0x101085338 in -[XCTestDriver _runTests]+0x1d1 (XCTest:x86_64+0xd338)
#54 0x10112f1b7 in _XCTestMain+0x6b (XCTest:x86_64+0xb71b7)
#55 0x100006530 in main+0x194 (xctest:x86_64+0x100006530)
#56 0x7fff20528620 in start+0x0 (libdyld.dylib:x86_64+0x15620)
0x00010ecff141 is located 0 bytes to the right of global variable '' defined in '/Users/adamfowler/Library/Developer/Xcode/DerivedData/Runtime-alpyovrntiajzygbbctjlczjhope/Build/Intermediates.noindex/Runtime.build/Debug/RuntimeTests.build/Objects-normal-asan/x86_64/GetSetStructTests.o' (0x10ecff140) of size 1
'' is ascii string ''
SUMMARY: AddressSanitizer: global-buffer-overflow (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x1d0ac) in wrap_memcpy+0x16c
Shadow bytes around the buggy address:
0x100021d9fdd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fde0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fdf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fe10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x100021d9fe20: 00 00 00 00 00 00 00 00[01]f9 f9 f9 f9 f9 f9 f9
0x100021d9fe30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fe40: 00 00 00 00 00 00 00 00 00 00 00 00 01 f9 f9 f9
0x100021d9fe50: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fe60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100021d9fe70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
2021-05-13 08:05:22.047958+0100 xctest[6502:1824991] =================================================================
2021-05-13 08:05:22.048116+0100 xctest[6502:1824991] ==6502==ERROR: AddressSanitizer: global-buffer-overflow on address 0x00010ecff141 at pc 0x00010014d0ad bp 0x7ffeefbfb170 sp 0x7ffeefbfa930
2021-05-13 08:05:22.048162+0100 xctest[6502:1824991] READ of size 44 at 0x00010ecff141 thread T0
2021-05-13 08:05:22.048300+0100 xctest[6502:1824991] #0 0x10014d0ac in wrap_memcpy+0x16c (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x1d0ac)
2021-05-13 08:05:22.048459+0100 xctest[6502:1824991] #1 0x10ecb6b1c in __swift_memcpy44_4+0x1c (RuntimeTests:x86_64+0xd9b1c)
2021-05-13 08:05:22.048505+0100 xctest[6502:1824991] #2 0x10eccb24e in NominalMetadataType.numberOfFields()+0x84e (RuntimeTests:x86_64+0xee24e)
2021-05-13 08:05:22.048539+0100 xctest[6502:1824991] #3 0x10eccbc84 in NominalMetadataType.fieldOffsets()+0x7e4 (RuntimeTests:x86_64+0xeec84)
2021-05-13 08:05:22.048656+0100 xctest[6502:1824991] #4 0x10ecccae7 in NominalMetadataType.properties()+0x527 (RuntimeTests:x86_64+0xefae7)
2021-05-13 08:05:22.048715+0100 xctest[6502:1824991] #5 0x10ecd1263 in StructMetadata.toTypeInfo()+0xa13 (RuntimeTests:x86_64+0xf4263)
2021-05-13 08:05:22.048792+0100 xctest[6502:1824991] #6 0x10ecd206f in protocol witness for TypeInfoConvertible.toTypeInfo() in conformance StructMetadata+0xcf (RuntimeTests:x86_64+0xf506f)
2021-05-13 08:05:22.048825+0100 xctest[6502:1824991] #7 0x10ece3b99 in typeInfo(of:)+0xa09 (RuntimeTests:x86_64+0x106b99)
2021-05-13 08:05:22.048860+0100 xctest[6502:1824991] #8 0x10ec1fefc in GetSetStructTests.testGetSimple() GetSetStructTests.swift:70
2021-05-13 08:05:22.048928+0100 xctest[6502:1824991] #9 0x10ec207d2 in @objc GetSetStructTests.testGetSimple() <compiler-generated>
2021-05-13 08:05:22.049019+0100 xctest[6502:1824991] #10 0x7fff205e856b in __invoking___+0x8b (CoreFoundation:x86_64h+0x6456b)
2021-05-13 08:05:22.049065+0100 xctest[6502:1824991] #11 0x7fff205e840f in -[NSInvocation invoke]+0x12e (CoreFoundation:x86_64h+0x6440f)
2021-05-13 08:05:22.049102+0100 xctest[6502:1824991] #12 0x1010a8bfc in __24-[XCTestCase invokeTest]_block_invoke_3+0x33 (XCTest:x86_64+0x30bfc)
2021-05-13 08:05:22.049165+0100 xctest[6502:1824991] #13 0x10117c3e8 in +[XCTSwiftErrorObservation observeErrorsInBlock:]+0x44 (XCTest:x86_64+0x1043e8)
2021-05-13 08:05:22.049245+0100 xctest[6502:1824991] #14 0x1010a8afe in __24-[XCTestCase invokeTest]_block_invoke_2+0x76 (XCTest:x86_64+0x30afe)
2021-05-13 08:05:22.049281+0100 xctest[6502:1824991] #15 0x10113fb75 in -[XCTMemoryChecker _assertInvalidObjectsDeallocatedAfterScope:]+0x40 (XCTest:x86_64+0xc7b75)
2021-05-13 08:05:22.049313+0100 xctest[6502:1824991] #16 0x1010b3a3d in -[XCTestCase assertInvalidObjectsDeallocatedAfterScope:]+0x3c (XCTest:x86_64+0x3ba3d)
2021-05-13 08:05:22.049356+0100 xctest[6502:1824991] #17 0x1010a8a44 in __24-[XCTestCase invokeTest]_block_invoke.262+0xc6 (XCTest:x86_64+0x30a44)
2021-05-13 08:05:22.049427+0100 xctest[6502:1824991] #18 0x1011205d7 in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:]+0xb2 (XCTest:x86_64+0xa85d7)
2021-05-13 08:05:22.049518+0100 xctest[6502:1824991] #19 0x1010a8507 in -[XCTestCase invokeTest]+0x40c (XCTest:x86_64+0x30507)
2021-05-13 08:05:22.049575+0100 xctest[6502:1824991] #20 0x1010aa17d in __26-[XCTestCase performTest:]_block_invoke_2+0x2a (XCTest:x86_64+0x3217d)
2021-05-13 08:05:22.049704+0100 xctest[6502:1824991] #21 0x1011205d7 in -[XCTestCase(XCTIssueHandling) _caughtUnhandledDeveloperExceptionPermittingControlFlowInterruptions:caughtInterruptionException:whileExecutingBlock:]+0xb2 (XCTest:x86_64+0xa85d7)
2021-05-13 08:05:22.049791+0100 xctest[6502:1824991] #22 0x1010aa0b4 in __26-[XCTestCase performTest:]_block_invoke.393+0x55 (XCTest:x86_64+0x320b4)
2021-05-13 08:05:22.049879+0100 xctest[6502:1824991] #23 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
2021-05-13 08:05:22.049937+0100 xctest[6502:1824991] #24 0x1010a98c1 in -[XCTestCase performTest:]+0x2bd (XCTest:x86_64+0x318c1)
2021-05-13 08:05:22.050014+0100 xctest[6502:1824991] #25 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
2021-05-13 08:05:22.050050+0100 xctest[6502:1824991] #26 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
2021-05-13 08:05:22.050102+0100 xctest[6502:1824991] #27 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
2021-05-13 08:05:22.050162+0100 xctest[6502:1824991] #28 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
2021-05-13 08:05:22.050199+0100 xctest[6502:1824991] #29 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
2021-05-13 08:05:22.050237+0100 xctest[6502:1824991] #30 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
2021-05-13 08:05:22.050273+0100 xctest[6502:1824991] #31 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
2021-05-13 08:05:22.050311+0100 xctest[6502:1824991] #32 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
2021-05-13 08:05:22.050387+0100 xctest[6502:1824991] #33 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
2021-05-13 08:05:22.050426+0100 xctest[6502:1824991] #34 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
2021-05-13 08:05:22.050476+0100 xctest[6502:1824991] #35 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
2021-05-13 08:05:22.050553+0100 xctest[6502:1824991] #36 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
2021-05-13 08:05:22.050638+0100 xctest[6502:1824991] #37 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
2021-05-13 08:05:22.050716+0100 xctest[6502:1824991] #38 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
2021-05-13 08:05:22.050806+0100 xctest[6502:1824991] #39 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
2021-05-13 08:05:22.050841+0100 xctest[6502:1824991] #40 0x1010a164c in -[XCTestSuite runTestBasedOnRerunPolicy:testRun:]+0x9a (XCTest:x86_64+0x2964c)
2021-05-13 08:05:22.050875+0100 xctest[6502:1824991] #41 0x1010a14c1 in __27-[XCTestSuite performTest:]_block_invoke+0xfc (XCTest:x86_64+0x294c1)
2021-05-13 08:05:22.050960+0100 xctest[6502:1824991] #42 0x1010a0d15 in __59-[XCTestSuite _performProtectedSectionForTest:testSection:]_block_invoke+0x17 (XCTest:x86_64+0x28d15)
2021-05-13 08:05:22.051064+0100 xctest[6502:1824991] #43 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
2021-05-13 08:05:22.051117+0100 xctest[6502:1824991] #44 0x1010a0ccc in -[XCTestSuite _performProtectedSectionForTest:testSection:]+0x9e (XCTest:x86_64+0x28ccc)
2021-05-13 08:05:22.051153+0100 xctest[6502:1824991] #45 0x1010a0fd0 in -[XCTestSuite performTest:]+0x121 (XCTest:x86_64+0x28fd0)
2021-05-13 08:05:22.051188+0100 xctest[6502:1824991] #46 0x1010fb0ae in -[XCTest runTest]+0x38 (XCTest:x86_64+0x830ae)
2021-05-13 08:05:22.051224+0100 xctest[6502:1824991] #47 0x1011542ce in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke_2+0x93 (XCTest:x86_64+0xdc2ce)
2021-05-13 08:05:22.051265+0100 xctest[6502:1824991] #48 0x101134462 in +[XCTContext runInContextForTestCase:markAsReportingBase:block:]+0xdb (XCTest:x86_64+0xbc462)
2021-05-13 08:05:22.051304+0100 xctest[6502:1824991] #49 0x101154233 in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke+0x6e (XCTest:x86_64+0xdc233)
2021-05-13 08:05:22.051336+0100 xctest[6502:1824991] #50 0x1011543b4 in __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke.87+0x5f (XCTest:x86_64+0xdc3b4)
2021-05-13 08:05:22.051371+0100 xctest[6502:1824991] #51 0x1010ca684 in -[XCTestObservationCenter _observeTestExecutionForBlock:]+0x144 (XCTest:x86_64+0x52684)
2021-05-13 08:05:22.051408+0100 xctest[6502:1824991] #52 0x101153fab in -[XCTTestRunSession runTestsAndReturnError:]+0x1d8 (XCTest:x86_64+0xdbfab)
2021-05-13 08:05:22.051441+0100 xctest[6502:1824991] #53 0x101085338 in -[XCTestDriver _runTests]+0x1d1 (XCTest:x86_64+0xd338)
2021-05-13 08:05:22.051479+0100 xctest[6502:1824991] #54 0x10112f1b7 in _XCTestMain+0x6b (XCTest:x86_64+0xb71b7)
2021-05-13 08:05:22.051514+0100 xctest[6502:1824991] #55 0x100006530 in main+0x194 (xctest:x86_64+0x100006530)
2021-05-13 08:05:22.051552+0100 xctest[6502:1824991] #56 0x7fff20528620 in start+0x0 (libdyld.dylib:x86_64+0x15620)
2021-05-13 08:05:22.051589+0100 xctest[6502:1824991]
2021-05-13 08:05:22.051626+0100 xctest[6502:1824991] 0x00010ecff141 is located 0 bytes to the right of global variable '' defined in '/Users/adamfowler/Library/Developer/Xcode/DerivedData/Runtime-alpyovrntiajzygbbctjlczjhope/Build/Intermediates.noindex/Runtime.build/Debug/RuntimeTests.build/Objects-normal-asan/x86_64/GetSetStructTests.o' (0x10ecff140) of size 1
2021-05-13 08:05:22.051664+0100 xctest[6502:1824991] '' is ascii string ''
2021-05-13 08:05:22.051700+0100 xctest[6502:1824991] SUMMARY: AddressSanitizer: global-buffer-overflow (libclang_rt.asan_osx_dynamic.dylib:x86_64h+0x1d0ac) in wrap_memcpy+0x16c
2021-05-13 08:05:22.051739+0100 xctest[6502:1824991] Shadow bytes around the buggy address:
2021-05-13 08:05:22.051772+0100 xctest[6502:1824991] 0x100021d9fdd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.051830+0100 xctest[6502:1824991] 0x100021d9fde0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.051880+0100 xctest[6502:1824991] 0x100021d9fdf0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052285+0100 xctest[6502:1824991] 0x100021d9fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052326+0100 xctest[6502:1824991] 0x100021d9fe10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052373+0100 xctest[6502:1824991] =>0x100021d9fe20: 00 00 00 00 00 00 00 00[01]f9 f9 f9 f9 f9 f9 f9
2021-05-13 08:05:22.052462+0100 xctest[6502:1824991] 0x100021d9fe30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052601+0100 xctest[6502:1824991] 0x100021d9fe40: 00 00 00 00 00 00 00 00 00 00 00 00 01 f9 f9 f9
2021-05-13 08:05:22.052683+0100 xctest[6502:1824991] 0x100021d9fe50: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052748+0100 xctest[6502:1824991] 0x100021d9fe60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052823+0100 xctest[6502:1824991] 0x100021d9fe70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2021-05-13 08:05:22.052859+0100 xctest[6502:1824991] Shadow byte legend (one shadow byte represents 8 application bytes):
2021-05-13 08:05:22.052914+0100 xctest[6502:1824991] Addressable: 00
2021-05-13 08:05:22.052951+0100 xctest[6502:1824991] Partially addressable: 01 02 03 04 05 06 07
2021-05-13 08:05:22.052996+0100 xctest[6502:1824991] Heap left redzone: fa
2021-05-13 08:05:22.053050+0100 xctest[6502:1824991] Freed heap region: fd
2021-05-13 08:05:22.053088+0100 xctest[6502:1824991] Stack left redzone: f1
2021-05-13 08:05:22.053151+0100 xctest[6502:1824991] Stack mid redzone: f2
2021-05-13 08:05:22.053220+0100 xctest[6502:1824991] Stack right redzone: f3
2021-05-13 08:05:22.053297+0100 xctest[6502:1824991] Stack after return: f5
2021-05-13 08:05:22.053351+0100 xctest[6502:1824991] Stack use after scope: f8
2021-05-13 08:05:22.053427+0100 xctest[6502:1824991] Global redzone: f9
2021-05-13 08:05:22.053495+0100 xctest[6502:1824991] Global init order: f6
2021-05-13 08:05:22.053529+0100 xctest[6502:1824991] Poisoned by user: f7
2021-05-13 08:05:22.053588+0100 xctest[6502:1824991] Container overflow: fc
2021-05-13 08:05:22.053667+0100 xctest[6502:1824991] Array cookie: ac
2021-05-13 08:05:22.053702+0100 xctest[6502:1824991] Intra object redzone: bb
2021-05-13 08:05:22.053734+0100 xctest[6502:1824991] ASan internal: fe
2021-05-13 08:05:22.053772+0100 xctest[6502:1824991] Left alloca redzone: ca
2021-05-13 08:05:22.053805+0100 xctest[6502:1824991] Right alloca redzone: cb
2021-05-13 08:05:22.053839+0100 xctest[6502:1824991] Shadow gap: cc
==6502==ABORTING
Again the thread sanitizer on Linux is crashing as well