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alloc-dealloc-mismatch (operator new vs free) on 0x603000596cb0 #55560

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malaterre opened this issue Jul 13, 2021 · 2 comments
Closed

alloc-dealloc-mismatch (operator new vs free) on 0x603000596cb0 #55560

malaterre opened this issue Jul 13, 2021 · 2 comments
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area-Diagnostics-coreclr untriaged New issue has not been triaged by the area owner

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@malaterre
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Description

What's the correct way to debug a segfault in dotnet ? I fail to understand the minimal steps to combine gdb and dotnet:

Currently one my xUnit test produces a segfault. If I compile my native code with -sanitize-=address, here is what I can collect:

The active test run was aborted. Reason: Test host process crashed : =================================================================
==16422==ERROR: AddressSanitizer: alloc-dealloc-mismatch (operator new vs free) on 0x603000596cb0
    #0 0x7f7f57d64fb0 in __interceptor_free (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0xe8fb0)
    #1 0x7f7f54409168  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4c3168)
    #2 0x7f7eda82192b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x3c192b)
0x603000596cb0 is located 0 bytes inside of 23-byte region [0x603000596cb0,0x603000596cc7)
allocated by thread T20 here:
    #0 0x7f7f57d66d30 in operator new(unsigned long) (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0xead30)
    #1 0x7f7f57ba757e in void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x12057e)
    #2 0x7f7ee3a952cf  (<unknown module>)
    #3 0x7f7f5441eba7  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4d8ba7)
Thread T20 created by T7 here:
    #0 0x7f7f57cccdb0 in __interceptor_pthread_create (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0x50db0)
    #1 0x7f7f5442e6ee  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e86ee)
    #2 0x7f7f5442e817  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8817)
    #3 0x7f7f540c285b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c85b)
    #4 0x7f7f540c278b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c78b)
    #5 0x7f7f54110040  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1ca040)
    #6 0x7f7f5410fba4  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c9ba4)
    #7 0x7f7eda9507b6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f07b6)
    #8 0x7f7eda950733  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0733)
    #9 0x7f7eda97b7c0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51b7c0)
    #10 0x7f7eda97add2  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51add2)
    #11 0x7f7eda96da0b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50da0b)
    #12 0x7f7eda96d24a  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50d24a)
    #13 0x7f7eda977deb  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x517deb)
    #14 0x7f7ee3a169b4  (<unknown module>)
    #15 0x7f7ee3a17340  (<unknown module>)
    #16 0x7f7ee3a31c74  (<unknown module>)
    #17 0x7f7edbe2ba4e  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Linq.dll+0x3ba4e)
    #18 0x7f7edbe25b37  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Linq.dll+0x35b37)
    #19 0x7f7ee3a310ce  (<unknown module>)
    #20 0x7f7ee3a30634  (<unknown module>)
    #21 0x7f7ee3a2f9f5  (<unknown module>)
    #22 0x7f7ee3a2f353  (<unknown module>)
    #23 0x7f7ee3a2f2ae  (<unknown module>)
    #24 0x7f7ee3a2f24f  (<unknown module>)
    #25 0x7f7ee3a2cd5f  (<unknown module>)
    #26 0x7f7ee3a2c952  (<unknown module>)
    #27 0x7f7ee3a2c85e  (<unknown module>)
    #28 0x7f7ee3a2c7cb  (<unknown module>)
    #29 0x7f7ee3a2c0f4  (<unknown module>)
    #30 0x7f7ee3a2bf73  (<unknown module>)
    #31 0x7f7ee3a2beca  (<unknown module>)
    #32 0x7f7ee3a2be7c  (<unknown module>)
    #33 0x7f7ee3a2bd9d  (<unknown module>)
    #34 0x7f7ee3a2bc96  (<unknown module>)
    #35 0x7f7ee3a06be8  (<unknown module>)
    #36 0x7f7ee3a05e5c  (<unknown module>)
    #37 0x7f7edaaa06e6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x6406e6)
    #38 0x7f7edd52bcdf  (<unknown module>)
    #39 0x7f7edd526155  (<unknown module>)
    #40 0x7f7edd525c52  (<unknown module>)
    #41 0x7f7edd524c0a  (<unknown module>)
    #42 0x7f7edceaf470  (<unknown module>)
    #43 0x7f7edceaf068  (<unknown module>)
    #44 0x7f7edce8f33d  (<unknown module>)
    #45 0x7f7edce89147  (<unknown module>)
    #46 0x7f7edae093be  (<unknown module>)
    #47 0x7f7edae0909d  (<unknown module>)
    #48 0x7f7edadf5911  (<unknown module>)
    #49 0x7f7edadf4fc6  (<unknown module>)
    #50 0x7f7eda96ea10  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50ea10)
    #51 0x7f7eda974920  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x514920)
    #52 0x7f7eda9598d0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f98d0)
    #53 0x7f7eda96e829  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50e829)
    #54 0x7f7eda96e627  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50e627)
    #55 0x7f7eda97bd46  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51bd46)
    #56 0x7f7eda9598d0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f98d0)
    #57 0x7f7eda950580  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0580)
    #58 0x7f7f542b0176  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x36a176)
    #59 0x7f7f540fe9ba  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1b89ba)
    #60 0x7f7f5410f6a5  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c96a5)
    #61 0x7f7f540c7719  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x181719)
    #62 0x7f7f540c7d2c  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x181d2c)
    #63 0x7f7f5410f7ef  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c97ef)
    #64 0x7f7f5442ed1d  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8d1d)
    #65 0x7f7f57c17fa2 in start_thread /build/glibc-vjB4T1/glibc-2.28/nptl/pthread_create.c:486
Thread T7 created by T0 here:
    #0 0x7f7f57cccdb0 in __interceptor_pthread_create (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0x50db0)
    #1 0x7f7f5442e6ee  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e86ee)
    #2 0x7f7f5442e817  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8817)
    #3 0x7f7f540c285b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c85b)
    #4 0x7f7f540c278b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c78b)
    #5 0x7f7f54110040  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1ca040)
    #6 0x7f7f5410fba4  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c9ba4)
    #7 0x7f7eda9507b6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f07b6)
    #8 0x7f7eda950733  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0733)
    #9 0x7f7eda97b7c0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51b7c0)
    #10 0x7f7eda97add2  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51add2)
    #11 0x7f7eda96da0b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50da0b)
    #12 0x7f7eda96cf5f  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50cf5f)
    #13 0x7f7eda96cefe  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50cefe)
    #14 0x7f7edadf3ec5  (<unknown module>)
    #15 0x7f7edadf326b  (<unknown module>)
    #16 0x7f7edadedcbd  (<unknown module>)
    #17 0x7f7edadedc19  (<unknown module>)
    #18 0x7f7edaded7ae  (<unknown module>)
    #19 0x7f7edadebf67  (<unknown module>)
    #20 0x7f7edade6066  (<unknown module>)
    #21 0x7f7f542b0176  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x36a176)
    #22 0x7f7f540fe9ba  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1b89ba)
    #23 0x7f7f53fd20d9  (/usr/share/dotnet

Test Run Aborted.

Configuration

Here is my config:

% apt-cache policy dotnet-runtime-5.0
dotnet-runtime-5.0:
  Installed: 5.0.7-1
  Candidate: 5.0.7-1
  Version table:
 *** 5.0.7-1 500
        500 https://packages.microsoft.com/debian/10/prod buster/main amd64 Packages
        100 /var/lib/dpkg/status

Here is how I load the asan library:

% export LD_PRELOAD=/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so
@dotnet-issue-labeler dotnet-issue-labeler bot added area-Diagnostics-coreclr untriaged New issue has not been triaged by the area owner labels Jul 13, 2021
@ghost
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ghost commented Jul 13, 2021

Tagging subscribers to this area: @tommcdon
See info in area-owners.md if you want to be subscribed.

Issue Details

Description

What's the correct way to debug a segfault in dotnet ? I fail to understand the minimal steps to combine gdb and dotnet:

Currently one my xUnit test produces a segfault. If I compile my native code with -sanitize-=address, here is what I can collect:

The active test run was aborted. Reason: Test host process crashed : =================================================================
==16422==ERROR: AddressSanitizer: alloc-dealloc-mismatch (operator new vs free) on 0x603000596cb0
    #0 0x7f7f57d64fb0 in __interceptor_free (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0xe8fb0)
    #1 0x7f7f54409168  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4c3168)
    #2 0x7f7eda82192b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x3c192b)
0x603000596cb0 is located 0 bytes inside of 23-byte region [0x603000596cb0,0x603000596cc7)
allocated by thread T20 here:
    #0 0x7f7f57d66d30 in operator new(unsigned long) (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0xead30)
    #1 0x7f7f57ba757e in void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>(char const*, char const*, std::forward_iterator_tag) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x12057e)
    #2 0x7f7ee3a952cf  (<unknown module>)
    #3 0x7f7f5441eba7  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4d8ba7)
Thread T20 created by T7 here:
    #0 0x7f7f57cccdb0 in __interceptor_pthread_create (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0x50db0)
    #1 0x7f7f5442e6ee  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e86ee)
    #2 0x7f7f5442e817  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8817)
    #3 0x7f7f540c285b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c85b)
    #4 0x7f7f540c278b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c78b)
    #5 0x7f7f54110040  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1ca040)
    #6 0x7f7f5410fba4  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c9ba4)
    #7 0x7f7eda9507b6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f07b6)
    #8 0x7f7eda950733  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0733)
    #9 0x7f7eda97b7c0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51b7c0)
    #10 0x7f7eda97add2  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51add2)
    #11 0x7f7eda96da0b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50da0b)
    #12 0x7f7eda96d24a  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50d24a)
    #13 0x7f7eda977deb  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x517deb)
    #14 0x7f7ee3a169b4  (<unknown module>)
    #15 0x7f7ee3a17340  (<unknown module>)
    #16 0x7f7ee3a31c74  (<unknown module>)
    #17 0x7f7edbe2ba4e  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Linq.dll+0x3ba4e)
    #18 0x7f7edbe25b37  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Linq.dll+0x35b37)
    #19 0x7f7ee3a310ce  (<unknown module>)
    #20 0x7f7ee3a30634  (<unknown module>)
    #21 0x7f7ee3a2f9f5  (<unknown module>)
    #22 0x7f7ee3a2f353  (<unknown module>)
    #23 0x7f7ee3a2f2ae  (<unknown module>)
    #24 0x7f7ee3a2f24f  (<unknown module>)
    #25 0x7f7ee3a2cd5f  (<unknown module>)
    #26 0x7f7ee3a2c952  (<unknown module>)
    #27 0x7f7ee3a2c85e  (<unknown module>)
    #28 0x7f7ee3a2c7cb  (<unknown module>)
    #29 0x7f7ee3a2c0f4  (<unknown module>)
    #30 0x7f7ee3a2bf73  (<unknown module>)
    #31 0x7f7ee3a2beca  (<unknown module>)
    #32 0x7f7ee3a2be7c  (<unknown module>)
    #33 0x7f7ee3a2bd9d  (<unknown module>)
    #34 0x7f7ee3a2bc96  (<unknown module>)
    #35 0x7f7ee3a06be8  (<unknown module>)
    #36 0x7f7ee3a05e5c  (<unknown module>)
    #37 0x7f7edaaa06e6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x6406e6)
    #38 0x7f7edd52bcdf  (<unknown module>)
    #39 0x7f7edd526155  (<unknown module>)
    #40 0x7f7edd525c52  (<unknown module>)
    #41 0x7f7edd524c0a  (<unknown module>)
    #42 0x7f7edceaf470  (<unknown module>)
    #43 0x7f7edceaf068  (<unknown module>)
    #44 0x7f7edce8f33d  (<unknown module>)
    #45 0x7f7edce89147  (<unknown module>)
    #46 0x7f7edae093be  (<unknown module>)
    #47 0x7f7edae0909d  (<unknown module>)
    #48 0x7f7edadf5911  (<unknown module>)
    #49 0x7f7edadf4fc6  (<unknown module>)
    #50 0x7f7eda96ea10  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50ea10)
    #51 0x7f7eda974920  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x514920)
    #52 0x7f7eda9598d0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f98d0)
    #53 0x7f7eda96e829  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50e829)
    #54 0x7f7eda96e627  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50e627)
    #55 0x7f7eda97bd46  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51bd46)
    #56 0x7f7eda9598d0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f98d0)
    #57 0x7f7eda950580  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0580)
    #58 0x7f7f542b0176  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x36a176)
    #59 0x7f7f540fe9ba  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1b89ba)
    #60 0x7f7f5410f6a5  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c96a5)
    #61 0x7f7f540c7719  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x181719)
    #62 0x7f7f540c7d2c  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x181d2c)
    #63 0x7f7f5410f7ef  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c97ef)
    #64 0x7f7f5442ed1d  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8d1d)
    #65 0x7f7f57c17fa2 in start_thread /build/glibc-vjB4T1/glibc-2.28/nptl/pthread_create.c:486
Thread T7 created by T0 here:
    #0 0x7f7f57cccdb0 in __interceptor_pthread_create (/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so+0x50db0)
    #1 0x7f7f5442e6ee  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e86ee)
    #2 0x7f7f5442e817  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x4e8817)
    #3 0x7f7f540c285b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c85b)
    #4 0x7f7f540c278b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x17c78b)
    #5 0x7f7f54110040  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1ca040)
    #6 0x7f7f5410fba4  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1c9ba4)
    #7 0x7f7eda9507b6  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f07b6)
    #8 0x7f7eda950733  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x4f0733)
    #9 0x7f7eda97b7c0  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51b7c0)
    #10 0x7f7eda97add2  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x51add2)
    #11 0x7f7eda96da0b  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50da0b)
    #12 0x7f7eda96cf5f  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50cf5f)
    #13 0x7f7eda96cefe  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/System.Private.CoreLib.dll+0x50cefe)
    #14 0x7f7edadf3ec5  (<unknown module>)
    #15 0x7f7edadf326b  (<unknown module>)
    #16 0x7f7edadedcbd  (<unknown module>)
    #17 0x7f7edadedc19  (<unknown module>)
    #18 0x7f7edaded7ae  (<unknown module>)
    #19 0x7f7edadebf67  (<unknown module>)
    #20 0x7f7edade6066  (<unknown module>)
    #21 0x7f7f542b0176  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x36a176)
    #22 0x7f7f540fe9ba  (/usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.7/libcoreclr.so+0x1b89ba)
    #23 0x7f7f53fd20d9  (/usr/share/dotnet

Test Run Aborted.

Configuration

Here is my config:

% apt-cache policy dotnet-runtime-5.0
dotnet-runtime-5.0:
  Installed: 5.0.7-1
  Candidate: 5.0.7-1
  Version table:
 *** 5.0.7-1 500
        500 https://packages.microsoft.com/debian/10/prod buster/main amd64 Packages
        100 /var/lib/dpkg/status

Here is how I load the asan library:

% export LD_PRELOAD=/usr/lib/gcc/x86_64-linux-gnu/8/libasan.so

Author: malaterre
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area-Diagnostics-coreclr, untriaged
Milestone: -

@malaterre
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The above is the symptoms of an invalid string / const char* pinvoke signature. Full reference:

@ghost ghost locked as resolved and limited conversation to collaborators Aug 12, 2021
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