Failure to run Fuzz tests when running with corpus #32089

issue Prabhat1308 openend this issue on March 18, 2025
  1. Prabhat1308 commented at 9:05 am on March 18, 2025: contributor

    Is there an existing issue for this?

    • I have searched the existing issues

    Current behaviour

    When running the fuzz tests with fuzz corpus raises an error

     0FUZZ=process_message build_fuzz/bin/fuzz qa-assets/fuzz_corpora/process_message/                                               ─╯
 1INFO: Running with entropic power schedule (0xFF, 100).
 2INFO: Seed: 64371175
 3INFO: Loaded 1 modules   (1252320 inline 8-bit counters): 1252320 [0x1061c8000, 0x1062f9be0), 
 4INFO: Loaded 1 PC tables (1252320 PCs): 1252320 [0x1062f9be0,0x1076159e0), 
 5=================================================================
 6==36574==ERROR: AddressSanitizer: container-overflow on address 0x60800002c268 at pc 0x000102074ef4 bp 0x00016ddd26e0 sp 0x00016ddd26d8
 7WRITE of size 8 at 0x60800002c268 thread T0
 8    [#0](/bitcoin-bitcoin/0/) 0x000102074ef0 in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::__init_copy_ctor_external(char const*, unsigned long)+0x1c4 (fuzz:arm64+0x100048ef0)
 9    [#1](/bitcoin-bitcoin/1/) 0x0001057b34f8 in fuzzer::ListFilesInDirRecursive(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, long*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>*, bool)+0x26c (fuzz:arm64+0x1037874f8)
10    [#2](/bitcoin-bitcoin/2/) 0x0001057b27c0 in fuzzer::GetSizedFilesFromDir(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>*)+0x2c (fuzz:arm64+0x1037867c0)
11    [#3](/bitcoin-bitcoin/3/) 0x0001057ae338 in fuzzer::ReadCorpora(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&)+0x4c (fuzz:arm64+0x103782338)
12    [#4](/bitcoin-bitcoin/4/) 0x0001057ae1a0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1dbc (fuzz:arm64+0x1037821a0)
13    [#5](/bitcoin-bitcoin/5/) 0x0001057c1aa8 in main+0x24 (fuzz:arm64+0x103795aa8)
14    [#6](/bitcoin-bitcoin/6/) 0x00018ce70270  (<unknown module>)
15    [#7](/bitcoin-bitcoin/7/) 0xf3547ffffffffffc  (<unknown module>)
16
170x60800002c268 is located 72 bytes inside of 96-byte region [0x60800002c220,0x60800002c280)
18allocated by thread T0 here:
19    [#0](/bitcoin-bitcoin/0/) 0x0001094d92c4 in _Znwm+0x6c (libclang_rt.asan_osx_dynamic.dylib:arm64+0x612c4)
20    [#1](/bitcoin-bitcoin/1/) 0x0001025f0a5c in std::__1::__split_buffer<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>&>::__split_buffer(unsigned long, unsigned long, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>&)+0xf0 (fuzz:arm64+0x1005c4a5c)
21    [#2](/bitcoin-bitcoin/2/) 0x000102943a48 in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>* std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>::__push_back_slow_path<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&)+0x244 (fuzz:arm64+0x100917a48)
22    [#3](/bitcoin-bitcoin/3/) 0x0001057b3468 in fuzzer::ListFilesInDirRecursive(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, long*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>*, bool)+0x1dc (fuzz:arm64+0x103787468)
23    [#4](/bitcoin-bitcoin/4/) 0x0001057b27c0 in fuzzer::GetSizedFilesFromDir(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>*)+0x2c (fuzz:arm64+0x1037867c0)
24    [#5](/bitcoin-bitcoin/5/) 0x0001057ae338 in fuzzer::ReadCorpora(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&)+0x4c (fuzz:arm64+0x103782338)
25    [#6](/bitcoin-bitcoin/6/) 0x0001057ae1a0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1dbc (fuzz:arm64+0x1037821a0)
26    [#7](/bitcoin-bitcoin/7/) 0x0001057c1aa8 in main+0x24 (fuzz:arm64+0x103795aa8)
27    [#8](/bitcoin-bitcoin/8/) 0x00018ce70270  (<unknown module>)
28    [#9](/bitcoin-bitcoin/9/) 0xf3547ffffffffffc  (<unknown module>)
29
30HINT: if you don't care about these errors you may set ASAN_OPTIONS=detect_container_overflow=0.
31If you suspect a false positive see also: https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow.
32SUMMARY: AddressSanitizer: container-overflow (fuzz:arm64+0x100048ef0) in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::__init_copy_ctor_external(char const*, unsigned long)+0x1c4
33Shadow bytes around the buggy address:
34  0x60800002bf80: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
35  0x60800002c000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
36  0x60800002c080: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
37  0x60800002c100: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
38  0x60800002c180: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
39=>0x60800002c200: fa fa fa fa 00 00 00 00 00 00 00 00 00[fc]fc fc
40  0x60800002c280: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
41  0x60800002c300: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
42  0x60800002c380: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
43  0x60800002c400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
44  0x60800002c480: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
45Shadow byte legend (one shadow byte represents 8 application bytes):
46  Addressable:           00
47  Partially addressable: 01 02 03 04 05 06 07 
48  Heap left redzone:       fa
49  Freed heap region:       fd
50  Stack left redzone:      f1
51  Stack mid redzone:       f2
52  Stack right redzone:     f3
53  Stack after return:      f5
54  Stack use after scope:   f8
55  Global redzone:          f9
56  Global init order:       f6
57  Poisoned by user:        f7
58  Container overflow:      fc
59  Array cookie:            ac
60  Intra object redzone:    bb
61  ASan internal:           fe
62  Left alloca redzone:     ca
63  Right alloca redzone:    cb
64==36574==ABORTING
65[3]    36574 abort      FUZZ=process_message build_fuzz/bin/fuzz

    when running with without corpus , the fuzz test runs fine.

     0 FUZZ=process_message build_fuzz/bin/fuzz                                                                                       ─╯
 1INFO: Running with entropic power schedule (0xFF, 100).
 2INFO: Seed: 85124989
 3INFO: Loaded 1 modules   (1252320 inline 8-bit counters): 1252320 [0x10672c000, 0x10685dbe0), 
 4INFO: Loaded 1 PC tables (1252320 PCs): 1252320 [0x10685dbe0,0x107b799e0), 
 5INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
 6INFO: A corpus is not provided, starting from an empty corpus
 7[#2](/bitcoin-bitcoin/2/)      INITED cov: 2748 ft: 2747 corp: 1/1b exec/s: 0 rss: 193Mb
 8[#6](/bitcoin-bitcoin/6/)      NEW    cov: 2754 ft: 2848 corp: 2/2b lim: 4 exec/s: 0 rss: 193Mb L: 1/1 MS: 4 ChangeBinInt-ChangeBit-CopyPart-ChangeByte-
 9[#8](/bitcoin-bitcoin/8/)      NEW    cov: 2754 ft: 2851 corp: 3/4b lim: 4 exec/s: 0 rss: 194Mb L: 2/2 MS: 2 CopyPart-InsertByte-
10[#11](/bitcoin-bitcoin/11/)     NEW    cov: 2757 ft: 2858 corp: 4/5b lim: 4 exec/s: 0 rss: 194Mb L: 1/2 MS: 3 ChangeBit-ChangeBinInt-ChangeBit-
11[#26](/bitcoin-bitcoin/26/)     NEW    cov: 2757 ft: 2859 corp: 5/7b lim: 4 exec/s: 0 rss: 194Mb L: 2/2 MS: 5 CrossOver-ChangeBit-ChangeByte-CrossOver-CrossOver-
12[#27](/bitcoin-bitcoin/27/)     NEW    cov: 2758 ft: 2878 corp: 6/8b lim: 4 exec/s: 0 rss: 194Mb L: 1/2 MS: 1 ChangeByte-
13[#53](/bitcoin-bitcoin/53/)     NEW    cov: 2758 ft: 2879 corp: 7/12b lim: 4 exec/s: 0 rss: 195Mb L: 4/4 MS: 1 CopyPart-
14[#278](/bitcoin-bitcoin/278/)    NEW    cov: 2759 ft: 2881 corp: 8/17b lim: 6 exec/s: 0 rss: 198Mb L: 5/5 MS: 5 ShuffleBytes-ChangeByte-EraseBytes-CrossOver-CrossOver-
15[#364](/bitcoin-bitcoin/364/)    NEW    cov: 2759 ft: 2882 corp: 9/18b lim: 6 exec/s: 0 rss: 200Mb L: 1/5 MS: 1 ChangeByte-
16[#615](/bitcoin-bitcoin/615/)    NEW    cov: 2759 ft: 2890 corp: 10/20b lim: 8 exec/s: 0 rss: 204Mb L: 2/5 MS: 1 InsertByte-
17[#657](/bitcoin-bitcoin/657/)    NEW    cov: 2759 ft: 2892 corp: 11/27b lim: 8 exec/s: 0 rss: 204Mb L: 7/7 MS: 2 ChangeByte-CopyPart-
18[#692](/bitcoin-bitcoin/692/)    NEW    cov: 2759 ft: 2893 corp: 12/34b lim: 8 exec/s: 0 rss: 205Mb L: 7/7 MS: 5 InsertRepeatedBytes-InsertByte-EraseBytes-ChangeBinInt-InsertRepeatedBytes-
19[#1013](/bitcoin-bitcoin/1013/)   NEW    cov: 2759 ft: 2895 corp: 13/45b lim: 11 exec/s: 0 rss: 210Mb L: 11/11 MS: 1 InsertRepeatedBytes-
20[#1341](/bitcoin-bitcoin/1341/)   NEW    cov: 2764 ft: 2901 corp: 14/58b lim: 14 exec/s: 0 rss: 215Mb L: 13/13 MS: 3 ChangeByte-InsertRepeatedBytes-InsertRepeatedBytes-
21[#1347](/bitcoin-bitcoin/1347/)   NEW    cov: 2765 ft: 2902 corp: 15/61b lim: 14 exec/s: 0 rss: 215Mb L: 3/13 MS: 1 CrossOver-
22[#1378](/bitcoin-bitcoin/1378/)   NEW    cov: 2765 ft: 2905 corp: 16/75b lim: 14 exec/s: 0 rss: 216Mb L: 14/14 MS: 1 InsertByte-
23[#1716](/bitcoin-bitcoin/1716/)   NEW    cov: 2765 ft: 2908 corp: 17/91b lim: 17 exec/s: 0 rss: 221Mb L: 16/16 MS: 3 CrossOver-InsertRepeatedBytes-InsertRepeatedBytes-
24[#1754](/bitcoin-bitcoin/1754/)   NEW    cov: 2765 ft: 2911 corp: 18/106b lim: 17 exec/s: 0 rss: 222Mb L: 15/16 MS: 3 InsertByte-ChangeBit-CopyPart-
25[#1982](/bitcoin-bitcoin/1982/)   NEW    cov: 2766 ft: 2912 corp: 19/110b lim: 17 exec/s: 0 rss: 226Mb L: 4/16 MS: 3 ChangeBit-EraseBytes-ChangeBit-
26[#2405](/bitcoin-bitcoin/2405/)   NEW    cov: 2767 ft: 2915 corp: 20/130b lim: 21 exec/s: 0 rss: 232Mb L: 20/20 MS: 3 InsertByte-InsertRepeatedBytes-InsertRepeatedBytes-
27[#2418](/bitcoin-bitcoin/2418/)   NEW    cov: 2769 ft: 2917 corp: 21/151b lim: 21 exec/s: 0 rss: 233Mb L: 21/21 MS: 3 InsertRepeatedBytes-InsertByte-CrossOver-
28[#2629](/bitcoin-bitcoin/2629/)   REDUCE cov: 2769 ft: 2917 corp: 21/150b lim: 21 exec/s: 0 rss: 236Mb L: 6/21 MS: 1 EraseBytes-
29        NEW_FUNC[1/19]: 0x0001034cb5bc in CNetAddr::IsRFC1918() const+0x0 (fuzz:arm64+0x100f3b5bc)
30        NEW_FUNC[2/19]: 0x0001034cbd94 in CNetAddr::IsRFC2544() const+0x0 (fuzz:arm64+0x100f3bd94)
31[#3051](/bitcoin-bitcoin/3051/)   NEW    cov: 2881 ft: 3227 corp: 22/173b lim: 25 exec/s: 0 rss: 244Mb L: 23/23 MS: 2 InsertRepeatedBytes-InsertRepeatedBytes-
32[#3071](/bitcoin-bitcoin/3071/)   REDUCE cov: 2881 ft: 3227 corp: 22/170b lim: 25 exec/s: 0 rss: 244Mb L: 3/23 MS: 5 ChangeBit-CrossOver-CMP-CrossOver-EraseBytes- DE: "\377\377\377\377"-
33        NEW_FUNC[1/11]: 0x0001025a7a5c in std::__1::vector<unsigned char, std::__1::allocator<unsigned char>>::shrink_to_fit()+0x0 (fuzz:arm64+0x100017a5c)
34        NEW_FUNC[2/11]: 0x0001025a8070 in std::__1::vector<unsigned char,

    Expected behaviour

    To run the fuzz tests without any error and relevant log output.

    Steps to reproduce

    0git clone https://github.com/bitcoin-core/qa-assets
1cmake --preset=libfuzzer \
2   -DCMAKE_C_COMPILER="$(brew --prefix llvm)/bin/clang" \
3   -DCMAKE_CXX_COMPILER="$(brew --prefix llvm)/bin/clang++" \
4   -DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=lld"
5
6cmake --build build_fuzz -j$(sysctl -n hw.ncpu)
7FUZZ=process_message build_fuzz/bin/fuzz qa-assets/fuzz_corpora/process_message/

    Relevant log output

    NA

    How did you obtain Bitcoin Core

    Compiled from source

    What version of Bitcoin Core are you using?

    master @83a9e55ae1

    Operating system and version

    MacOS 15.3.1

    Machine specifications

    No response

  2. Prabhat1308 commented at 9:08 am on March 18, 2025: contributor

    I tried running with the

    0ASAN_OPTIONS=detect_container_overflow=0 FUZZ=process_message build_fuzz/bin/fuzz qa-assets/fuzz_corpora/process_message/

    It crashes with the following log

     0INFO: Running with entropic power schedule (0xFF, 100).
 1INFO: Seed: 917199606
 2INFO: Loaded 1 modules   (1252320 inline 8-bit counters): 1252320 [0x109024000, 0x109155be0), 
 3INFO: Loaded 1 PC tables (1252320 PCs): 1252320 [0x109155be0,0x10a4719e0), 
 4INFO:     4126 files found in qa-assets/fuzz_corpora/process_message/
 5INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 981836 bytes
 6INFO: seed corpus: files: 4126 min: 1b max: 981836b total: 141648651b rss: 195Mb
 7libc++abi: terminating due to uncaught exception of type std::__1::ios_base::failure: DataStream::read(): end of data: unspecified iostream_category error
 8==36931== ERROR: libFuzzer: deadly signal
 9    [#0](/bitcoin-bitcoin/0/) 0x00010c34d248 in __sanitizer_print_stack_trace+0x28 (libclang_rt.asan_osx_dynamic.dylib:arm64+0x5d248)
10    [#1](/bitcoin-bitcoin/1/) 0x00010861d0a4 in fuzzer::PrintStackTrace()+0x2c (fuzz:arm64+0x1037950a4)
11    [#2](/bitcoin-bitcoin/2/) 0x000108610a58 in fuzzer::Fuzzer::CrashCallback()+0x54 (fuzz:arm64+0x103788a58)
12    [#3](/bitcoin-bitcoin/3/) 0x00018d226de0 in _sigtramp+0x34 (libsystem_platform.dylib:arm64+0x3de0)
13    [#4](/bitcoin-bitcoin/4/) 0x9e2380018d1eff6c  (<unknown module>)
14    [#5](/bitcoin-bitcoin/5/) 0xc23900018d0fc904  (<unknown module>)
15    [#6](/bitcoin-bitcoin/6/) 0x493e80018d1a6448  (<unknown module>)
16    [#7](/bitcoin-bitcoin/7/) 0x166a80018d194a20  (<unknown module>)
17    [#8](/bitcoin-bitcoin/8/) 0xfc5480018ce3d3f0  (<unknown module>)
18    [#9](/bitcoin-bitcoin/9/) 0x135b80018d1a570c  (<unknown module>)
19    [#10](/bitcoin-bitcoin/10/) 0xd05000018d1a8cd8  (<unknown module>)
20    [#11](/bitcoin-bitcoin/11/) 0x633f80018d1a8c80  (<unknown module>)
21    [#12](/bitcoin-bitcoin/12/) 0x9a7e0001050aac24  (<unknown module>)
22    [#13](/bitcoin-bitcoin/13/) 0x0001050bf008 in unsigned long long ReadCompactSize<DataStream>(DataStream&, bool)+0x110 (fuzz:arm64+0x100237008)
23    [#14](/bitcoin-bitcoin/14/) 0x000107720fbc in void VectorFormatter<DefaultFormatter>::Unser<DataStream, std::__1::vector<CInv, std::__1::allocator<CInv>>>(DataStream&, std::__1::vector<CInv, std::__1::allocator<CInv>>&)+0x1e8 (fuzz:arm64+0x102898fbc)
24    [#15](/bitcoin-bitcoin/15/) 0x000107652d3c in (anonymous namespace)::PeerManagerImpl::ProcessMessage(CNode&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, DataStream&, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000l>>, std::__1::atomic<bool> const&)+0x3cb4 (fuzz:arm64+0x1027cad3c)
25    [#16](/bitcoin-bitcoin/16/) 0x00010767f794 in (anonymous namespace)::PeerManagerImpl::ProcessMessages(CNode*, std::__1::atomic<bool>&)+0x24b0 (fuzz:arm64+0x1027f7794)
26    [#17](/bitcoin-bitcoin/17/) 0x000105647fa0 in process_message_fuzz_target(std::__1::span<unsigned char const, 18446744073709551615ul>)+0xaf8 (fuzz:arm64+0x1007bffa0)
27    [#18](/bitcoin-bitcoin/18/) 0x000105b366ec in LLVMFuzzerTestOneInput+0x198 (fuzz:arm64+0x100cae6ec)
28    [#19](/bitcoin-bitcoin/19/) 0x000108612004 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long)+0x12c (fuzz:arm64+0x10378a004)
29    [#20](/bitcoin-bitcoin/20/) 0x000108611884 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*)+0x3c (fuzz:arm64+0x103789884)
30    [#21](/bitcoin-bitcoin/21/) 0x0001086133c4 in fuzzer::Fuzzer::ReadAndExecuteSeedCorpora(std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>&)+0x470 (fuzz:arm64+0x10378b3c4)
31    [#22](/bitcoin-bitcoin/22/) 0x0001086137fc in fuzzer::Fuzzer::Loop(std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>&)+0x98 (fuzz:arm64+0x10378b7fc)
32    [#23](/bitcoin-bitcoin/23/) 0x00010860a1b4 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1dd0 (fuzz:arm64+0x1037821b4)
33    [#24](/bitcoin-bitcoin/24/) 0x00010861daa8 in main+0x24 (fuzz:arm64+0x103795aa8)
34    [#25](/bitcoin-bitcoin/25/) 0x00018ce70270  (<unknown module>)
35    [#26](/bitcoin-bitcoin/26/) 0x475cfffffffffffc  (<unknown module>)
36
37NOTE: libFuzzer has rudimentary signal handlers.
38      Combine libFuzzer with AddressSanitizer or similar for better crash reports.
39SUMMARY: libFuzzer: deadly signal
40MS: 0 ; base unit: 0000000000000000000000000000000000000000
410x67,0x65,0x74,0x64,0x61,0x74,0x61,0x0,0x0,0x0,0x0,0x0,0x0,0x80,0x91,0x28,0x67,0x1,0x5c,0x9,0x5c,0x78,0x1,0x0,0x5e,0x78,0xc0,0x87,0x27,0xd8,0x9c,0xff,0xff,0xff,0xff,0x0,0xff,0xff,0x0,0x47,0x8b,0x0,0x82,0x7d,0x8b,0x7d,0x82,0x7d,0x82,0x1,0x0,0x0,0x0,0xa1,0x7d,0x82,0x7d,0xff,0xff,0xe9,0x7d,0x0,0x8b,0x8b,0x0,0x82,0xff,0xff,0x7d,0x7e,0x7d,0x82,0x1,0x0,0x0,0x0,0x73,0x65,0x6e,0x64,0x61,0x64,0x64,0x1c,0x0,0xb5,
42getdata\000\000\000\000\000\000\200\221(g\001\\\011\\x\001\000^x\300\207'\330\234\377\377\377\377\000\377\377\000G\213\000\202}\213}\202}\202\001\000\000\000\241}\202}\377\377\351}\000\213\213\000\202\377\377}~}\202\001\000\000\000sendadd\034\000\265
43artifact_prefix='./'; Test unit written to ./crash-88926609e7277110e77b9c19c108b9df4835d6e7
44Base64: Z2V0ZGF0YQAAAAAAAICRKGcBXAlceAEAXnjAhyfYnP////8A//8AR4sAgn2LfYJ9ggEAAAChfYJ9///pfQCLiwCC//99fn2CAQAAAHNlbmRhZGQcALU=

    however this seems to be specific to process_message target only . when I run it with tx_package_eval this works fine.

    0ASAN_OPTIONS=detect_container_overflow=0 FUZZ=tx_package_eval build_fuzz/bin/fuzz  qa-assets/fuzz_corpora/tx_package_eval 

    0INFO: Running with entropic power schedule (0xFF, 100).
1INFO: Seed: 1122799189
2INFO: Loaded 1 modules   (1252320 inline 8-bit counters): 1252320 [0x106cdc000, 0x106e0dbe0), 
3INFO: Loaded 1 PC tables (1252320 PCs): 1252320 [0x106e0dbe0,0x1081299e0), 
4INFO:     2435 files found in qa-assets/fuzz_corpora/tx_package_eval
5INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 999203 bytes
6INFO: seed corpus: files: 2435 min: 1b max: 999203b total: 112736936b rss: 192Mb
7[#1024](/bitcoin-bitcoin/1024/)   pulse  cov: 12171 ft: 64557 corp: 629/83Kb exec/s: 256 rss: 286Mb
  3. brunoerg commented at 1:03 pm on March 18, 2025: contributor

    I could reproduce it following the same steps on MacOS 14.3

     0FUZZ=process_message build_fuzz/bin/fuzz qa-assets/fuzz_corpora/process_message/
 1fuzz(56832,0x1e31a5c40) malloc: nano zone abandoned due to inability to reserve vm space.
 2INFO: Running with entropic power schedule (0xFF, 100).
 3INFO: Seed: 2192399851
 4INFO: Loaded 1 modules   (1252322 inline 8-bit counters): 1252322 [0x104c38000, 0x104d69be2),
 5INFO: Loaded 1 PC tables (1252322 PCs): 1252322 [0x104d69be8,0x106085a08),
 6=================================================================
 7==56832==ERROR: AddressSanitizer: container-overflow on address 0x60800002ca68 at pc 0x000100adcef4 bp 0x00016f36aa20 sp 0x00016f36aa18
 8WRITE of size 8 at 0x60800002ca68 thread T0
 9    [#0](/bitcoin-bitcoin/0/) 0x000100adcef0 in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::__init_copy_ctor_external(char const*, unsigned long)+0x1c4 (fuzz:arm64+0x100048ef0)
10    [#1](/bitcoin-bitcoin/1/) 0x00010421b5bc in fuzzer::ListFilesInDirRecursive(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, long*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>*, bool)+0x26c (fuzz:arm64+0x1037875bc)
11    [#2](/bitcoin-bitcoin/2/) 0x00010421a884 in fuzzer::GetSizedFilesFromDir(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>*)+0x2c (fuzz:arm64+0x103786884)
12    [#3](/bitcoin-bitcoin/3/) 0x0001042163fc in fuzzer::ReadCorpora(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&)+0x4c (fuzz:arm64+0x1037823fc)
13    [#4](/bitcoin-bitcoin/4/) 0x000104216264 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1dbc (fuzz:arm64+0x103782264)
14    [#5](/bitcoin-bitcoin/5/) 0x000104229b6c in main+0x24 (fuzz:arm64+0x103795b6c)
15    [#6](/bitcoin-bitcoin/6/) 0x00018c5590dc  (<unknown module>)
16    [#7](/bitcoin-bitcoin/7/) 0x9f697ffffffffffc  (<unknown module>)

    For reference: https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow#false-positives

  4. maflcko added the label macOS on Mar 18, 2025
  5. maflcko added the label Tests on Mar 18, 2025
  6. maflcko added the label Upstream on Mar 18, 2025
  7. maflcko commented at 1:08 pm on March 18, 2025: member
    I presume the libfuzzer-nosan preset works fine?
  8. Prabhat1308 commented at 1:16 pm on March 18, 2025: contributor

    I presume the libfuzzer-nosan preset works fine?

    Works fine. I do get these warning though on the start of the run .

    0WARNING: Failed to find function "__sanitizer_acquire_crash_state". Reason dlsym(RTLD_DEFAULT, __sanitizer_acquire_crash_state): symbol not found.
1WARNING: Failed to find function "__sanitizer_print_stack_trace". Reason dlsym(RTLD_DEFAULT, __sanitizer_print_stack_trace): symbol not found.
2WARNING: Failed to find function "__sanitizer_set_death_callback". Reason dlsym(RTLD_DEFAULT, __sanitizer_set_death_callback): symbol not found.
  9. brunoerg commented at 10:51 pm on March 18, 2025: contributor
    Worth adding this “false positive” information to the documentation?
  10. maflcko commented at 7:35 pm on March 19, 2025: member

    libc++abi: terminating due to uncaught exception of type std::__1::ios_base::failure: DataStream::read(): end of data: unspecified iostream_category error

    This looks like an upstream packaging bug or asan bug on your platform, given that it passes fine when asan is disabled on your platform.

  11. maflcko commented at 7:24 am on March 27, 2025: member

    Does the issue happen with all clang versions from brew? (clang-16 to clang-20)?

    Does the issue happen when compiling clang from source?

  12. Prabhat1308 commented at 10:10 am on March 27, 2025: contributor

    I suspect this issue is because of the -DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=lld" flag.

    Other than my default llvm19 , I used llvm@18 downloaded via brew which comes with clang 18 I used 2 different configs

    0make --preset=libfuzzer \                                                                                                       
1    -DCMAKE_C_COMPILER="$(brew --prefix llvm@18)/bin/clang" \
2    -DCMAKE_CXX_COMPILER="$(brew --prefix llvm@18)/bin/clang++" \
3    -DAPPEND_LDFLAGS="-Wl,-no_warn_duplicate_libraries" \
4    -DCMAKE_EXE_LINKER_FLAGS="$LDFLAGS"

     0
 1/opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:495:12: runtime error: call to function decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<0ul, 0ul>::__dispatch[abi:ne180100]<void std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>::__generic_construct[abi:ne180100]<std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>>(std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>&, std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&&)::'lambda'(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&, auto&&)&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&>(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&) through pointer to incorrect function type 'void (*)((lambda at /opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:814:11) &&, std::__variant_detail::__base<std::__variant_detail::_Trait::_Available, RPCArg::Optional, std::string, UniValue> &, std::__variant_detail::__base<std::__variant_detail::_Trait::_Available, RPCArg::Optional, std::string, UniValue> &&)'
 2variant:532: note: decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<0ul, 0ul>::__dispatch[abi:ne180100]<void std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>::__generic_construct[abi:ne180100]<std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>>(std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>&, std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&&)::'lambda'(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&, auto&&)&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&>(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&) defined here
 3SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:495:12 
 4/Users/prabhatverma/projects/bitcoin/src/rpc/server.h:100:15: runtime error: call to function getblockchaininfo() through pointer to incorrect function type 'RPCHelpMan (*)()'
 5blockchain.cpp:1291: note: getblockchaininfo() defined here
 6SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/rpc/server.h:100:15 
 7/Users/prabhatverma/projects/bitcoin/src/rpc/server.h:102:15: runtime error: call to function getblockchaininfo() through pointer to incorrect function type 'RPCHelpMan (*)()'
 8blockchain.cpp:1291: note: getblockchaininfo() defined here
 9SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/rpc/server.h:102:15 
10/Users/prabhatverma/projects/bitcoin/src/tinyformat.h:544:13: runtime error: call to function void tinyformat::detail::FormatArg::formatImpl<char [13]>(std::__1::basic_ostream<char, std::__1::char_traits<char>>&, char const*, char const*, int, void const*) through pointer to incorrect function type 'void (*)(std::ostream &, const char *, const char *, int, const void *)'
11tinyformat.h:558: note: void tinyformat::detail::FormatArg::formatImpl<char [13]>(std::__1::basic_ostream<char, std::__1::char_traits<char>>&, char const*, char const*, int, void const*) defined here
12SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/tinyformat.h:544:13 
13INFO: Running with entropic power schedule (0xFF, 100).
14INFO: Seed: 1206976568
15INFO: Loaded 1 modules   (1257184 inline 8-bit counters): 1257184 [0x103ed4a48, 0x104007928), 
16INFO: Loaded 1 PC tables (1257184 PCs): 1257184 [0x104007928,0x105336728), 
17INFO:     4374 files found in qa-assets/fuzz_corpora/process_message/
18INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 981836 bytes
19INFO: seed corpus: files: 4374 min: 1b max: 981836b total: 152590538b rss: 195Mb
20[#2048](/bitcoin-bitcoin/2048/)   pulse  cov: 14987 ft: 33197 corp: 969/143Kb exec/s: 1024 rss: 435Mb
21[#4096](/bitcoin-bitcoin/4096/)   pulse  cov: 17387 ft: 57266 corp: 1814/795Kb exec/s: 1024 rss: 435Mb
22^C==35105== libFuzzer: run interrupted; exiting

    This is what the initial response was before this PR where the exe flag was added .

    Using the new config with llvm@18

    0cmake --preset=libfuzzer \
1    -DCMAKE_C_COMPILER="$(brew --prefix llvm@18)/bin/clang" \
2    -DCMAKE_CXX_COMPILER="$(brew --prefix llvm@18)/bin/clang++" \
3    -DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=lld"

     0
 1/opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:495:12: runtime error: call to function decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<0ul, 0ul>::__dispatch[abi:ne180100]<void std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>::__generic_construct[abi:ne180100]<std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>>(std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>&, std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&&)::'lambda'(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&, auto&&)&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&>(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&) through pointer to incorrect function type 'void (*)((lambda at /opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:814:11) &&, std::__variant_detail::__base<std::__variant_detail::_Trait::_Available, RPCArg::Optional, std::string, UniValue> &, std::__variant_detail::__base<std::__variant_detail::_Trait::_Available, RPCArg::Optional, std::string, UniValue> &&)'
 2(fuzz:arm64+0x101536194): note: decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<0ul, 0ul>::__dispatch[abi:ne180100]<void std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>::__generic_construct[abi:ne180100]<std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>>(std::__1::__variant_detail::__ctor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>>&, std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&&)::'lambda'(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>&, auto&&)&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&>(std::__1::__variant_detail::__move_constructor<std::__1::__variant_detail::__traits<RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>, (std::__1::__variant_detail::_Trait)1>, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, RPCArg::Optional, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, UniValue>&&) defined here
 3SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /opt/homebrew/opt/llvm@18/bin/../include/c++/v1/variant:495:12 
 4/Users/prabhatverma/projects/bitcoin/src/rpc/server.h:100:15: runtime error: call to function getblockchaininfo() through pointer to incorrect function type 'RPCHelpMan (*)()'
 5(fuzz:arm64+0x1020d8d8c): note: getblockchaininfo() defined here
 6SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/rpc/server.h:100:15 
 7/Users/prabhatverma/projects/bitcoin/src/rpc/server.h:102:15: runtime error: call to function getblockchaininfo() through pointer to incorrect function type 'RPCHelpMan (*)()'
 8(fuzz:arm64+0x1020d8d8c): note: getblockchaininfo() defined here
 9SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/rpc/server.h:102:15 
10/Users/prabhatverma/projects/bitcoin/src/tinyformat.h:544:13: runtime error: call to function void tinyformat::detail::FormatArg::formatImpl<char [13]>(std::__1::basic_ostream<char, std::__1::char_traits<char>>&, char const*, char const*, int, void const*) through pointer to incorrect function type 'void (*)(std::ostream &, const char *, const char *, int, const void *)'
11(fuzz:arm64+0x100b9c7cc): note: void tinyformat::detail::FormatArg::formatImpl<char [13]>(std::__1::basic_ostream<char, std::__1::char_traits<char>>&, char const*, char const*, int, void const*) defined here
12SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/prabhatverma/projects/bitcoin/src/tinyformat.h:544:13 
13INFO: Running with entropic power schedule (0xFF, 100).
14INFO: Seed: 1461236862
15INFO: Loaded 1 modules   (1257184 inline 8-bit counters): 1257184 [0x107780000, 0x1078b2ee0), 
16INFO: Loaded 1 PC tables (1257184 PCs): 1257184 [0x1078b2ee0,0x108be1ce0), 
17=================================================================
18==41097==ERROR: AddressSanitizer: container-overflow on address 0x60800002c268 at pc 0x000104784be4 bp 0x00016b6c2710 sp 0x00016b6c2708
19WRITE of size 8 at 0x60800002c268 thread T0
20    [#0](/bitcoin-bitcoin/0/) 0x104784be0 in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::__init_copy_ctor_external(char const*, unsigned long)+0x2b4 (fuzz:arm64+0x100048be0)
21    [#1](/bitcoin-bitcoin/1/) 0x106ed8d2c in fuzzer::ListFilesInDirRecursive(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, long*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>*, bool)+0x21c (fuzz:arm64+0x10279cd2c)
22    [#2](/bitcoin-bitcoin/2/) 0x106ed80dc in fuzzer::GetSizedFilesFromDir(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>*)+0x2c (fuzz:arm64+0x10279c0dc)
23    [#3](/bitcoin-bitcoin/3/) 0x106ed3848 in fuzzer::ReadCorpora(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&)+0x4c (fuzz:arm64+0x102797848)
24    [#4](/bitcoin-bitcoin/4/) 0x106ed36b0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1c80 (fuzz:arm64+0x1027976b0)
25    [#5](/bitcoin-bitcoin/5/) 0x106ee7848 in main+0x24 (fuzz:arm64+0x1027ab848)
26    [#6](/bitcoin-bitcoin/6/) 0x18ce70270  (<unknown module>)
27    [#7](/bitcoin-bitcoin/7/) 0x1a2c7ffffffffffc  (<unknown module>)
28
290x60800002c268 is located 72 bytes inside of 96-byte region [0x60800002c220,0x60800002c280)
30allocated by thread T0 here:
31    [#0](/bitcoin-bitcoin/0/) 0x10a7ececc in _Znwm+0x6c (libclang_rt.asan_osx_dynamic.dylib:arm64+0x60ecc)
32    [#1](/bitcoin-bitcoin/1/) 0x104cad68c in std::__1::__split_buffer<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>&>::__split_buffer(unsigned long, unsigned long, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>&)+0xf0 (fuzz:arm64+0x10057168c)
33    [#2](/bitcoin-bitcoin/2/) 0x104f26814 in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>* std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>::__push_back_slow_path<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&>(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&)+0x230 (fuzz:arm64+0x1007ea814)
34    [#3](/bitcoin-bitcoin/3/) 0x106ed8cb8 in fuzzer::ListFilesInDirRecursive(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, long*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>>*, bool)+0x1a8 (fuzz:arm64+0x10279ccb8)
35    [#4](/bitcoin-bitcoin/4/) 0x106ed80dc in fuzzer::GetSizedFilesFromDir(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::vector<fuzzer::SizedFile, std::__1::allocator<fuzzer::SizedFile>>*)+0x2c (fuzz:arm64+0x10279c0dc)
36    [#5](/bitcoin-bitcoin/5/) 0x106ed3848 in fuzzer::ReadCorpora(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&)+0x4c (fuzz:arm64+0x102797848)
37    [#6](/bitcoin-bitcoin/6/) 0x106ed36b0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))+0x1c80 (fuzz:arm64+0x1027976b0)
38    [#7](/bitcoin-bitcoin/7/) 0x106ee7848 in main+0x24 (fuzz:arm64+0x1027ab848)
39    [#8](/bitcoin-bitcoin/8/) 0x18ce70270  (<unknown module>)
40    [#9](/bitcoin-bitcoin/9/) 0x1a2c7ffffffffffc  (<unknown module>)
41
42HINT: if you don't care about these errors you may set ASAN_OPTIONS=detect_container_overflow=0.
43If you suspect a false positive see also: https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow.
44SUMMARY: AddressSanitizer: container-overflow (fuzz:arm64+0x100048be0) in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>::__init_copy_ctor_external(char const*, unsigned long)+0x2b4
45Shadow bytes around the buggy address:
46  0x60800002bf80: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
47  0x60800002c000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
48  0x60800002c080: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
49  0x60800002c100: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
50  0x60800002c180: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
51=>0x60800002c200: fa fa fa fa 00 00 00 00 00 00 00 00 00[fc]fc fc
52  0x60800002c280: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
53  0x60800002c300: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
54  0x60800002c380: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
55  0x60800002c400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
56  0x60800002c480: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
57Shadow byte legend (one shadow byte represents 8 application bytes):
58  Addressable:           00
59  Partially addressable: 01 02 03 04 05 06 07 
60  Heap left redzone:       fa
61  Freed heap region:       fd
62  Stack left redzone:      f1
63  Stack mid redzone:       f2
64  Stack right redzone:     f3
65  Stack after return:      f5
66  Stack use after scope:   f8
67  Global redzone:          f9
68  Global init order:       f6
69  Poisoned by user:        f7
70  Container overflow:      fc
71  Array cookie:            ac
72  Intra object redzone:    bb
73  ASan internal:           fe
74  Left alloca redzone:     ca
75  Right alloca redzone:    cb
76==41097==ABORTING
77[2]    41097 abort      FUZZ=process_message build_fuzz/bin/fuzz

    Although not completely sure if this is the right config since runtime errors still appears but the bug is introduced in llvm18 also because of this.

    Can reproduce this with llvm16 too using

    0cmake --preset=libfuzzer \                                                                                                 
1    -DCMAKE_C_COMPILER="$(brew --prefix llvm@16)/bin/clang" \
2    -DCMAKE_CXX_COMPILER="$(brew --prefix llvm@16)/bin/clang++" \
3    -DCMAKE_EXE_LINKER_FLAGS="-fuse-ld=lld"
  13. Crypt-iQ commented at 5:18 pm on April 2, 2025: contributor

    I was able to run the fuzz tests with sanitizers + corpus on macOS 15.4 with the following:

    0cmake -B build -DCMAKE_C_COMPILER="clang" -DCMAKE_CXX_COMPILER="clang++" -DBUILD_FOR_FUZZING=ON -DSANITIZERS="undefined,address,fuzzer"
1cmake --build build -j8
2FUZZ=process_message build/bin/fuzz process-message-corpus

    I did get some ubsan errors before it started fuzzing, but then it worked smoothly after that. My clang is aliased to brew-installed clang and I didn’t need to use -fuse-ld=lld.

  14. Prabhat1308 commented at 5:34 pm on April 2, 2025: contributor

    I was able to run the fuzz tests with sanitizers + corpus on macOS 15.4 with the following:

    cmake -B build -DCMAKE_C_COMPILER=“clang” -DCMAKE_CXX_COMPILER=“clang++” -DBUILD_FOR_FUZZING=ON -DSANITIZERS=“undefined,address,fuzzer” cmake –build build -j8 FUZZ=process_message build/bin/fuzz process-message-corpus I did get some ubsan errors before it started fuzzing, but then it worked smoothly after that. My clang is aliased to brew-installed clang and I didn’t need to use -fuse-ld=lld.

    I am running on macOS with 15.3.1 and running your command I get linker error while building. Can you share more about your clang versions and other dependencies ?

  15. Crypt-iQ commented at 5:55 pm on April 2, 2025: contributor

    I am running on macOS with 15.3.1 and running your command I get linker error while building. Can you share more about your clang versions and other dependencies ?

    I’m using clang 18.1.8, what linker errors are you getting?

      0eugenesiegel@Eugenes-MacBook-Air-2 bitcoin % cmake -B build -DCMAKE_C_COMPILER="clang" -DCMAKE_CXX_COMPILER="clang++" -DBUILD_FOR_FUZZING=ON -DSANITIZERS="undefined,address,fuzzer"
  1CMake Warning at CMakeLists.txt:216 (message):
  2  BUILD_FOR_FUZZING=ON will disable all other targets and force
  3  BUILD_FUZZ_BINARY=ON.
  4
  5
  6-- Performing Test CXX_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK
  7-- Performing Test CXX_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK - Success
  8-- Performing Test LINKER_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK_6231
  9-- Performing Test LINKER_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK_6231 - Success
 10-- Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter) (Required is at least version "3.10")
 11    Reason given by package: 
 12        Interpreter: Wrong version for the interpreter "/usr/bin/python3"
 13
 14-- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE dot) 
 15
 16Configuring secp256k1 subtree...
 17-- Could NOT find Valgrind (missing: Valgrind_INCLUDE_DIR Valgrind_WORKS) 
 18
 19
 20secp256k1 configure summary
 21===========================
 22Build artifacts:
 23  library type ........................ Static
 24Optional modules:
 25  ECDH ................................ OFF
 26  ECDSA pubkey recovery ............... ON
 27  extrakeys ........................... ON
 28  schnorrsig .......................... ON
 29  musig ............................... OFF
 30  ElligatorSwift ...................... ON
 31Parameters:
 32  ecmult window size .................. 15
 33  ecmult gen table size ............... 86 KiB
 34Optional features:
 35  assembly ............................ OFF
 36  external callbacks .................. OFF
 37Optional binaries:
 38  benchmark ........................... OFF
 39  noverify_tests ...................... OFF
 40  tests ............................... OFF
 41  exhaustive tests .................... OFF
 42  ctime_tests ......................... OFF
 43  examples ............................ OFF
 44
 45Cross compiling ....................... FALSE
 46Valgrind .............................. OFF
 47Preprocessor defined macros ........... ENABLE_MODULE_ELLSWIFT=1 ENABLE_MODULE_SCHNORRSIG=1 ENABLE_MODULE_EXTRAKEYS=1 ENABLE_MODULE_RECOVERY=1 ECMULT_WINDOW_SIZE=15 COMB_BLOCKS=43 COMB_TEETH=6
 48C compiler ............................ Clang 18.1.8, /opt/homebrew/Cellar/llvm@18/18.1.8/bin/clang
 49CFLAGS ................................ 
 50Compile options ....................... -pedantic -Wall -Wcast-align -Wconditional-uninitialized -Wextra -Wnested-externs -Wno-long-long -Wno-overlength-strings -Wno-unused-function -Wreserved-identifier -Wshadow -Wstrict-prototypes -Wundef
 51Build type:
 52 - CMAKE_BUILD_TYPE ................... RelWithDebInfo
 53 - CFLAGS ............................. -O2 -g 
 54 - LDFLAGS for executables ............ 
 55 - LDFLAGS for shared libraries ....... 
 56SECP256K1_APPEND_CFLAGS ............... -fsanitize=undefined,address,fuzzer-no-link
 57SECP256K1_APPEND_LDFLAGS .............. -fsanitize=undefined,address,fuzzer-no-link
 58
 59
 60
 61Configure summary
 62=================
 63Executables:
 64  bitcoind ............................ OFF
 65  bitcoin-node (multiprocess) ......... OFF
 66  bitcoin-qt (GUI) .................... OFF
 67  bitcoin-gui (GUI, multiprocess) ..... OFF
 68  bitcoin-cli ......................... OFF
 69  bitcoin-tx .......................... OFF
 70  bitcoin-util ........................ OFF
 71  bitcoin-wallet ...................... OFF
 72  bitcoin-chainstate (experimental) ... OFF
 73  libbitcoinkernel (experimental) ..... OFF
 74Optional features:
 75  wallet support ...................... ON
 76   - legacy wallets (Berkeley DB) ..... OFF
 77  external signer ..................... OFF
 78  ZeroMQ .............................. OFF
 79  USDT tracing ........................ OFF
 80  QR code (GUI) ....................... OFF
 81  DBus (GUI, Linux only) .............. OFF
 82Tests:
 83  test_bitcoin ........................ OFF
 84  test_bitcoin-qt ..................... OFF
 85  bench_bitcoin ....................... OFF
 86  fuzz binary ......................... ON
 87
 88Cross compiling ....................... FALSE
 89C++ compiler .......................... Clang 18.1.8, /opt/homebrew/Cellar/llvm@18/18.1.8/bin/clang++
 90CMAKE_BUILD_TYPE ...................... RelWithDebInfo
 91Preprocessor defined macros ........... FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION OBJC_OLD_DISPATCH_PROTOTYPES=0
 92C++ compiler flags .................... -O2 -g -std=c++20 -fPIC -fdebug-prefix-map=/Users/eugenesiegel/btc/bitcoin/src=. -fmacro-prefix-map=/Users/eugenesiegel/btc/bitcoin/src=. -fsanitize=undefined,address,fuzzer-no-link -Wall -Wextra -Wgnu -Wformat -Wformat-security -Wvla -Wshadow-field -Wthread-safety -Wloop-analysis -Wredundant-decls -Wunused-member-function -Wdate-time -Wconditional-uninitialized -Woverloaded-virtual -Wsuggest-override -Wimplicit-fallthrough -Wunreachable-code -Wdocumentation -Wself-assign -Wundef -Wno-unused-parameter -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -Wstack-protector -fstack-protector-all -mbranch-protection=bti
 93Linker flags .......................... -O2 -g -Wl,-dead_strip -Wl,-dead_strip_dylibs -Wl,-headerpad_max_install_names -fsanitize=undefined,address,fuzzer-no-link -fstack-protector-all -Wl,-fixup_chains -fPIE -Xlinker -pie
 94
 95NOTE: The summary above may not exactly match the final applied build flags
 96      if any additional CMAKE_* or environment variables have been modified.
 97      To see the exact flags applied, build with the --verbose option.
 98
 99Attempt to harden executables ......... ON
100Treat compiler warnings as errors ..... OFF
101Use ccache for compiling .............. OFF
102
103
104  ******
105
106CMake Warning at CMakeLists.txt:702 (message):
107  Minimum required Python not found.  Utils and rpcauth tests are disabled.
108
109
110  ******
111
112-- Configuring done (0.6s)
113-- Generating done (0.1s)
114-- Build files have been written to: /Users/eugenesiegel/btc/bitcoin/build
  16. Prabhat1308 commented at 6:02 pm on April 2, 2025: contributor

    I am running on macOS with 15.3.1 and running your command I get linker error while building. Can you share more about your clang versions and other dependencies ?

    I’m using clang 18.1.8, what linker errors are you getting?

    Output of the cmake -B build step

    The error is when I run cmake --build build -j$(sysctl -n hw.ncpu)

     0[  0%] Building CXX object src/crypto/CMakeFiles/bitcoin_crypto.dir/aes.cpp.o
 1...
 2...
 3...
 4[100%] Linking CXX executable ../../../bin/fuzz
 5ld: warning: ignoring duplicate libraries: '-lc++', '../../../lib/libbitcoin_common.a', '../../../lib/libbitcoin_util.a', '../../libleveldb.a', '../../libminisketch.a', '../../secp256k1/lib/libsecp256k1.a', '../../univalue/libunivalue.a'
 6ld: multiple errors: invalid r_symbolnum=1 in '/Users/prabhatverma/projects/bitcoin/build/src/test/fuzz/CMakeFiles/fuzz.dir/overflow.cpp.o'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_cli.a[2](stdin.cpp.o)'; invalid r_symbolnum=1 in '../../libcrc32c.a[4](crc32c_arm64.cc.o)'; invalid r_symbolnum=1 in '../../libcrc32c.a[3](crc32c_portable.cc.o)'; invalid r_symbolnum=1 in '../../libcrc32c.a[2](crc32c.cc.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_consensus.a[11](script_error.cpp.o)'; invalid r_symbolnum=18 in '../../../lib/libbitcoin_crypto.a[19](sha256_arm_shani.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_crypto.a[15](sha3.cpp.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[37](logging.cc.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[35](hash.cc.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_crypto.a[10](poly1305.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_crypto.a[5](hex_base.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[29](randomenv.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libtest_util.a[13](str.cpp.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[31](crc32c.cc.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[27](bloom.cc.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_consensus.a[5](hash.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[27](logging.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[24](threadnames.cpp.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[8](filename.cc.o)'; invalid r_symbolnum=1 in '../../../lib/libtest_util.a[5](index.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[16](serfloat.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libtest_util.a[3](coins.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[15](readwritefile.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[14](rbf.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[48](parsing.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[9](feefrac.cpp.o)'; invalid r_symbolnum=1 in '../../libleveldb.a[2](builder.cc.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_util.a[6](chaintype.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[43](request.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[39](pow.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[85](torcontrol.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[31](merkleblock.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[25](deploymentinfo.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[22](compressor.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[21](url.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_common.a[17](run_command.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[64](fees_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[53](peerman_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[50](miner.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[49](mempool_persist_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[42](database_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[40](connection_types.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[39](coins_view_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[38](coin.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[37](chainstatemanager_args.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[35](caches.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[33](blockmanager_args.cpp.o)'; invalid r_symbolnum=3 in '../../../lib/libbitcoin_node.a[30](net_processing.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[27](mempool_removal_reason.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[22](checks.cpp.o)'; invalid r_symbolnum=1 in '../../../lib/libbitcoin_node.a[21](chain.cpp.o)'
 7clang++: error: linker command failed with exit code 1 (use -v to see invocation)
 8make[2]: *** [bin/fuzz] Error 1
 9make[1]: *** [src/test/fuzz/CMakeFiles/fuzz.dir/all] Error 2
10make: *** [all] Error 2
  17. Crypt-iQ commented at 1:29 pm on April 3, 2025: contributor
    What version of ld are you using?
  18. Prabhat1308 commented at 3:08 pm on April 3, 2025: contributor

    What version of ld are you using?

    16.0.0

  19. Crypt-iQ commented at 3:43 pm on April 3, 2025: contributor

    16.0.0

    This matches my ld – can you share the output of the configure step when running the above command?

  20. Prabhat1308 commented at 3:49 pm on April 3, 2025: contributor

    Running

    0cmake -B build -DCMAKE_C_COMPILER="clang" -DCMAKE_CXX_COMPILER="clang++" -DBUILD_FOR_FUZZING=ON -DSANITIZERS="undefined,address,fuzzer"

      0
  1-- The CXX compiler identification is Clang 19.1.7
  2-- Detecting CXX compiler ABI info
  3-- Detecting CXX compiler ABI info - done
  4-- Check for working CXX compiler: /opt/homebrew/opt/llvm/bin/clang++ - skipped
  5-- Detecting CXX compile features
  6-- Detecting CXX compile features - done
  7-- Setting build type to "RelWithDebInfo" as none was specified
  8-- Performing Test CXX_SUPPORTS__WERROR
  9-- Performing Test CXX_SUPPORTS__WERROR - Success
 10-- Performing Test CXX_SUPPORTS__G3
 11-- Performing Test CXX_SUPPORTS__G3 - Success
 12-- Performing Test LINKER_SUPPORTS__G3
 13-- Performing Test LINKER_SUPPORTS__G3 - Success
 14-- Performing Test CXX_SUPPORTS__FTRAPV
 15-- Performing Test CXX_SUPPORTS__FTRAPV - Success
 16-- Performing Test LINKER_SUPPORTS__FTRAPV
 17-- Performing Test LINKER_SUPPORTS__FTRAPV - Success
 18-- Found SQLite3: /Library/Developer/CommandLineTools/SDKs/MacOSX15.2.sdk/usr/include (found suitable version "3.43.2", minimum required is "3.7.17")
 19CMake Warning at CMakeLists.txt:216 (message):
 20  BUILD_FOR_FUZZING=ON will disable all other targets and force
 21  BUILD_FUZZ_BINARY=ON.
 22
 23
 24-- Performing Test LINKER_SUPPORTS__WL__FATAL_WARNINGS
 25-- Performing Test LINKER_SUPPORTS__WL__FATAL_WARNINGS - Success
 26-- Performing Test LINKER_SUPPORTS__WL__DEAD_STRIP
 27-- Performing Test LINKER_SUPPORTS__WL__DEAD_STRIP - Success
 28-- Performing Test LINKER_SUPPORTS__WL__DEAD_STRIP_DYLIBS
 29-- Performing Test LINKER_SUPPORTS__WL__DEAD_STRIP_DYLIBS - Success
 30-- Performing Test LINKER_SUPPORTS__WL__HEADERPAD_MAX_INSTALL_NAMES
 31-- Performing Test LINKER_SUPPORTS__WL__HEADERPAD_MAX_INSTALL_NAMES - Success
 32-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
 33-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
 34-- Found Threads: TRUE
 35-- Performing Test CXX_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK
 36-- Performing Test CXX_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK - Success
 37-- Performing Test LINKER_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK_6231
 38-- Performing Test LINKER_SUPPORTS__FSANITIZE_UNDEFINED_ADDRESS_FUZZER_NO_LINK_6231 - Success
 39-- Performing Test FUZZ_BINARY_LINKS_WITHOUT_MAIN_FUNCTION
 40-- Performing Test FUZZ_BINARY_LINKS_WITHOUT_MAIN_FUNCTION - Success
 41-- Found Boost: /opt/homebrew/include (found suitable version "1.87.0", minimum required is "1.73.0")
 42-- Performing Test NO_DIAGNOSTICS_BOOST_NO_CXX98_FUNCTION_BASE
 43-- Performing Test NO_DIAGNOSTICS_BOOST_NO_CXX98_FUNCTION_BASE - Failed
 44-- Found PkgConfig: /opt/homebrew/bin/pkg-config (found version "2.3.0")
 45-- Found Libevent: /opt/homebrew/Cellar/libevent/2.1.12_1/lib (found suitable version "2.1.12-stable", minimum required is "2.1.8")
 46-- Performing Test HAVE_EVHTTP_CONNECTION_GET_PEER_CONST_CHAR
 47-- Performing Test HAVE_EVHTTP_CONNECTION_GET_PEER_CONST_CHAR - Failed
 48-- Looking for C++ include sys/prctl.h
 49-- Looking for C++ include sys/prctl.h - not found
 50-- Looking for C++ include sys/resources.h
 51-- Looking for C++ include sys/resources.h - not found
 52-- Looking for C++ include sys/vmmeter.h
 53-- Looking for C++ include sys/vmmeter.h - found
 54-- Looking for C++ include vm/vm_param.h
 55-- Looking for C++ include vm/vm_param.h - not found
 56-- Looking for O_CLOEXEC
 57-- Looking for O_CLOEXEC - found
 58-- Looking for fdatasync
 59-- Looking for fdatasync - not found
 60-- Looking for fork
 61-- Looking for fork - found
 62-- Looking for pipe2
 63-- Looking for pipe2 - not found
 64-- Looking for setsid
 65-- Looking for setsid - found
 66-- Looking for C++ include sys/types.h
 67-- Looking for C++ include sys/types.h - found
 68-- Looking for C++ include ifaddrs.h
 69-- Looking for C++ include ifaddrs.h - found
 70-- Performing Test IFADDR_LINKS_WITHOUT_LIBSOCKET
 71-- Performing Test IFADDR_LINKS_WITHOUT_LIBSOCKET - Success
 72-- Performing Test STD_ATOMIC_LINKS_WITHOUT_LIBATOMIC
 73-- Performing Test STD_ATOMIC_LINKS_WITHOUT_LIBATOMIC - Success
 74-- Looking for std::system
 75-- Looking for std::system - found
 76-- Looking for ::_wsystem
 77-- Looking for ::_wsystem - not found
 78-- Performing Test STRERROR_R_CHAR_P
 79-- Performing Test STRERROR_R_CHAR_P - Failed
 80-- Looking for malloc_info
 81-- Looking for malloc_info - not found
 82-- Performing Test HAVE_MALLOPT_ARENA_MAX
 83-- Performing Test HAVE_MALLOPT_ARENA_MAX - Failed
 84-- Performing Test HAVE_POSIX_FALLOCATE
 85-- Performing Test HAVE_POSIX_FALLOCATE - Failed
 86-- Performing Test HAVE_STRONG_GETAUXVAL
 87-- Performing Test HAVE_STRONG_GETAUXVAL - Failed
 88-- Performing Test HAVE_SOCKADDR_UN
 89-- Performing Test HAVE_SOCKADDR_UN - Success
 90-- Performing Test HAVE_GETRANDOM
 91-- Performing Test HAVE_GETRANDOM - Failed
 92-- Performing Test HAVE_GETENTROPY_RAND
 93-- Performing Test HAVE_GETENTROPY_RAND - Success
 94-- Performing Test HAVE_SYSCTL
 95-- Performing Test HAVE_SYSCTL - Success
 96-- Performing Test HAVE_SYSCTL_ARND
 97-- Performing Test HAVE_SYSCTL_ARND - Failed
 98-- Performing Test HAVE_SSE41
 99-- Performing Test HAVE_SSE41 - Failed
100-- Performing Test HAVE_AVX2
101-- Performing Test HAVE_AVX2 - Failed
102-- Performing Test HAVE_X86_SHANI
103-- Performing Test HAVE_X86_SHANI - Failed
104-- Performing Test HAVE_ARM_SHANI
105-- Performing Test HAVE_ARM_SHANI - Success
106-- Performing Test CXX_SUPPORTS__WALL
107-- Performing Test CXX_SUPPORTS__WALL - Success
108-- Performing Test CXX_SUPPORTS__WEXTRA
109-- Performing Test CXX_SUPPORTS__WEXTRA - Success
110-- Performing Test CXX_SUPPORTS__WGNU
111-- Performing Test CXX_SUPPORTS__WGNU - Success
112-- Performing Test CXX_SUPPORTS__WFORMAT__WFORMAT_SECURITY
113-- Performing Test CXX_SUPPORTS__WFORMAT__WFORMAT_SECURITY - Success
114-- Performing Test CXX_SUPPORTS__WVLA
115-- Performing Test CXX_SUPPORTS__WVLA - Success
116-- Performing Test CXX_SUPPORTS__WSHADOW_FIELD
117-- Performing Test CXX_SUPPORTS__WSHADOW_FIELD - Success
118-- Performing Test CXX_SUPPORTS__WTHREAD_SAFETY
119-- Performing Test CXX_SUPPORTS__WTHREAD_SAFETY - Success
120-- Performing Test CXX_SUPPORTS__WLOOP_ANALYSIS
121-- Performing Test CXX_SUPPORTS__WLOOP_ANALYSIS - Success
122-- Performing Test CXX_SUPPORTS__WREDUNDANT_DECLS
123-- Performing Test CXX_SUPPORTS__WREDUNDANT_DECLS - Success
124-- Performing Test CXX_SUPPORTS__WUNUSED_MEMBER_FUNCTION
125-- Performing Test CXX_SUPPORTS__WUNUSED_MEMBER_FUNCTION - Success
126-- Performing Test CXX_SUPPORTS__WDATE_TIME
127-- Performing Test CXX_SUPPORTS__WDATE_TIME - Success
128-- Performing Test CXX_SUPPORTS__WCONDITIONAL_UNINITIALIZED
129-- Performing Test CXX_SUPPORTS__WCONDITIONAL_UNINITIALIZED - Success
130-- Performing Test CXX_SUPPORTS__WDUPLICATED_BRANCHES
131-- Performing Test CXX_SUPPORTS__WDUPLICATED_BRANCHES - Failed
132-- Performing Test CXX_SUPPORTS__WDUPLICATED_COND
133-- Performing Test CXX_SUPPORTS__WDUPLICATED_COND - Failed
134-- Performing Test CXX_SUPPORTS__WLOGICAL_OP
135-- Performing Test CXX_SUPPORTS__WLOGICAL_OP - Failed
136-- Performing Test CXX_SUPPORTS__WOVERLOADED_VIRTUAL
137-- Performing Test CXX_SUPPORTS__WOVERLOADED_VIRTUAL - Success
138-- Performing Test CXX_SUPPORTS__WSUGGEST_OVERRIDE
139-- Performing Test CXX_SUPPORTS__WSUGGEST_OVERRIDE - Success
140-- Performing Test CXX_SUPPORTS__WIMPLICIT_FALLTHROUGH
141-- Performing Test CXX_SUPPORTS__WIMPLICIT_FALLTHROUGH - Success
142-- Performing Test CXX_SUPPORTS__WUNREACHABLE_CODE
143-- Performing Test CXX_SUPPORTS__WUNREACHABLE_CODE - Success
144-- Performing Test CXX_SUPPORTS__WDOCUMENTATION
145-- Performing Test CXX_SUPPORTS__WDOCUMENTATION - Success
146-- Performing Test CXX_SUPPORTS__WSELF_ASSIGN
147-- Performing Test CXX_SUPPORTS__WSELF_ASSIGN - Success
148-- Performing Test CXX_SUPPORTS__WBIDI_CHARS_ANY
149-- Performing Test CXX_SUPPORTS__WBIDI_CHARS_ANY - Failed
150-- Performing Test CXX_SUPPORTS__WUNDEF
151-- Performing Test CXX_SUPPORTS__WUNDEF - Success
152-- Performing Test CXX_SUPPORTS__WUNUSED_PARAMETER
153-- Performing Test CXX_SUPPORTS__WUNUSED_PARAMETER - Success
154-- Performing Test CXX_SUPPORTS__FNO_EXTENDED_IDENTIFIERS
155-- Performing Test CXX_SUPPORTS__FNO_EXTENDED_IDENTIFIERS - Failed
156-- Performing Test CXX_SUPPORTS__FDEBUG_PREFIX_MAP_A_B
157-- Performing Test CXX_SUPPORTS__FDEBUG_PREFIX_MAP_A_B - Success
158-- Performing Test CXX_SUPPORTS__FMACRO_PREFIX_MAP_A_B
159-- Performing Test CXX_SUPPORTS__FMACRO_PREFIX_MAP_A_B - Success
160-- Performing Test CXX_SUPPORTS__FSTACK_REUSE_NONE
161-- Performing Test CXX_SUPPORTS__FSTACK_REUSE_NONE - Failed
162-- Performing Test CXX_SUPPORTS__U_FORTIFY_SOURCE__D_FORTIFY_SOURCE_3_cc10
163-- Performing Test CXX_SUPPORTS__U_FORTIFY_SOURCE__D_FORTIFY_SOURCE_3_cc10 - Success
164-- Performing Test LINKER_SUPPORTS__U_FORTIFY_SOURCE__D_FORTIFY_SOURCE_3_cc10
165-- Performing Test LINKER_SUPPORTS__U_FORTIFY_SOURCE__D_FORTIFY_SOURCE_3_cc10 - Success
166-- Performing Test CXX_SUPPORTS__WSTACK_PROTECTOR
167-- Performing Test CXX_SUPPORTS__WSTACK_PROTECTOR - Success
168-- Performing Test CXX_SUPPORTS__FSTACK_PROTECTOR_ALL
169-- Performing Test CXX_SUPPORTS__FSTACK_PROTECTOR_ALL - Success
170-- Performing Test LINKER_SUPPORTS__FSTACK_PROTECTOR_ALL
171-- Performing Test LINKER_SUPPORTS__FSTACK_PROTECTOR_ALL - Success
172-- Performing Test CXX_SUPPORTS__FCF_PROTECTION_FULL
173-- Performing Test CXX_SUPPORTS__FCF_PROTECTION_FULL - Failed
174-- Performing Test CXX_SUPPORTS__FSTACK_CLASH_PROTECTION
175-- Performing Test CXX_SUPPORTS__FSTACK_CLASH_PROTECTION - Failed
176-- Performing Test CXX_SUPPORTS__MBRANCH_PROTECTION_BTI
177-- Performing Test CXX_SUPPORTS__MBRANCH_PROTECTION_BTI - Success
178-- Performing Test LINKER_SUPPORTS__WL___ENABLE_RELOC_SECTION
179-- Performing Test LINKER_SUPPORTS__WL___ENABLE_RELOC_SECTION - Failed
180-- Performing Test LINKER_SUPPORTS__WL___DYNAMICBASE
181-- Performing Test LINKER_SUPPORTS__WL___DYNAMICBASE - Failed
182-- Performing Test LINKER_SUPPORTS__WL___NXCOMPAT
183-- Performing Test LINKER_SUPPORTS__WL___NXCOMPAT - Failed
184-- Performing Test LINKER_SUPPORTS__WL___HIGH_ENTROPY_VA
185-- Performing Test LINKER_SUPPORTS__WL___HIGH_ENTROPY_VA - Failed
186-- Performing Test LINKER_SUPPORTS__WL__Z_RELRO
187-- Performing Test LINKER_SUPPORTS__WL__Z_RELRO - Failed
188-- Performing Test LINKER_SUPPORTS__WL__Z_NOW
189-- Performing Test LINKER_SUPPORTS__WL__Z_NOW - Failed
190-- Performing Test LINKER_SUPPORTS__WL__Z_SEPARATE_CODE
191-- Performing Test LINKER_SUPPORTS__WL__Z_SEPARATE_CODE - Failed
192-- Performing Test LINKER_SUPPORTS__WL__FIXUP_CHAINS
193-- Performing Test LINKER_SUPPORTS__WL__FIXUP_CHAINS - Success
194-- Found Python3: /opt/homebrew/bin/python3 (found suitable version "3.13.2", minimum required is "3.10") found components: Interpreter
195-- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) 
196-- Performing Test HAVE_BUILTIN_PREFETCH
197-- Performing Test HAVE_BUILTIN_PREFETCH - Success
198-- Performing Test HAVE_MM_PREFETCH
199-- Performing Test HAVE_MM_PREFETCH - Failed
200-- Performing Test HAVE_SSE42
201-- Performing Test HAVE_SSE42 - Failed
202-- Performing Test HAVE_ARM64_CRC32C
203-- Performing Test HAVE_ARM64_CRC32C - Success
204-- Looking for F_FULLFSYNC
205-- Looking for F_FULLFSYNC - found
206-- Performing Test HAVE_CLMUL
207-- Performing Test HAVE_CLMUL - Failed
208
209Configuring secp256k1 subtree...
210-- The C compiler identification is Clang 19.1.7
211-- Detecting C compiler ABI info
212-- Detecting C compiler ABI info - done
213-- Check for working C compiler: /opt/homebrew/opt/llvm/bin/clang - skipped
214-- Detecting C compile features
215-- Detecting C compile features - done
216-- Performing Test HAVE_X86_64_ASM
217-- Performing Test HAVE_X86_64_ASM - Failed
218-- Could NOT find Valgrind (missing: Valgrind_INCLUDE_DIR Valgrind_WORKS) 
219-- Performing Test C_SUPPORTS__PEDANTIC
220-- Performing Test C_SUPPORTS__PEDANTIC - Success
221-- Performing Test C_SUPPORTS__WALL
222-- Performing Test C_SUPPORTS__WALL - Success
223-- Performing Test C_SUPPORTS__WCAST_ALIGN
224-- Performing Test C_SUPPORTS__WCAST_ALIGN - Success
225-- Performing Test C_SUPPORTS__WCAST_ALIGN_STRICT
226-- Performing Test C_SUPPORTS__WCAST_ALIGN_STRICT - Failed
227-- Performing Test C_SUPPORTS__WCONDITIONAL_UNINITIALIZED
228-- Performing Test C_SUPPORTS__WCONDITIONAL_UNINITIALIZED - Success
229-- Performing Test C_SUPPORTS__WEXTRA
230-- Performing Test C_SUPPORTS__WEXTRA - Success
231-- Performing Test C_SUPPORTS__WNESTED_EXTERNS
232-- Performing Test C_SUPPORTS__WNESTED_EXTERNS - Success
233-- Performing Test C_SUPPORTS__WNO_LONG_LONG
234-- Performing Test C_SUPPORTS__WNO_LONG_LONG - Success
235-- Performing Test C_SUPPORTS__WNO_OVERLENGTH_STRINGS
236-- Performing Test C_SUPPORTS__WNO_OVERLENGTH_STRINGS - Success
237-- Performing Test C_SUPPORTS__WNO_UNUSED_FUNCTION
238-- Performing Test C_SUPPORTS__WNO_UNUSED_FUNCTION - Success
239-- Performing Test C_SUPPORTS__WRESERVED_IDENTIFIER
240-- Performing Test C_SUPPORTS__WRESERVED_IDENTIFIER - Success
241-- Performing Test C_SUPPORTS__WSHADOW
242-- Performing Test C_SUPPORTS__WSHADOW - Success
243-- Performing Test C_SUPPORTS__WSTRICT_PROTOTYPES
244-- Performing Test C_SUPPORTS__WSTRICT_PROTOTYPES - Success
245-- Performing Test C_SUPPORTS__WUNDEF
246-- Performing Test C_SUPPORTS__WUNDEF - Success
247
248
249secp256k1 configure summary
250===========================
251Build artifacts:
252  library type ........................ Static
253Optional modules:
254  ECDH ................................ OFF
255  ECDSA pubkey recovery ............... ON
256  extrakeys ........................... ON
257  schnorrsig .......................... ON
258  musig ............................... OFF
259  ElligatorSwift ...................... ON
260Parameters:
261  ecmult window size .................. 15
262  ecmult gen table size ............... 86 KiB
263Optional features:
264  assembly ............................ OFF
265  external callbacks .................. OFF
266Optional binaries:
267  benchmark ........................... OFF
268  noverify_tests ...................... OFF
269  tests ............................... OFF
270  exhaustive tests .................... OFF
271  ctime_tests ......................... OFF
272  examples ............................ OFF
273
274Cross compiling ....................... FALSE
275Valgrind .............................. OFF
276Preprocessor defined macros ........... ENABLE_MODULE_ELLSWIFT=1 ENABLE_MODULE_SCHNORRSIG=1 ENABLE_MODULE_EXTRAKEYS=1 ENABLE_MODULE_RECOVERY=1 ECMULT_WINDOW_SIZE=15 COMB_BLOCKS=43 COMB_TEETH=6
277C compiler ............................ Clang 19.1.7, /opt/homebrew/opt/llvm/bin/clang
278CFLAGS ................................ 
279Compile options ....................... -pedantic -Wall -Wcast-align -Wconditional-uninitialized -Wextra -Wnested-externs -Wno-long-long -Wno-overlength-strings -Wno-unused-function -Wreserved-identifier -Wshadow -Wstrict-prototypes -Wundef
280Build type:
281 - CMAKE_BUILD_TYPE ................... RelWithDebInfo
282 - CFLAGS ............................. -O2 -g 
283 - LDFLAGS for executables ............ 
284 - LDFLAGS for shared libraries ....... 
285SECP256K1_APPEND_CFLAGS ............... -fsanitize=undefined,address,fuzzer-no-link
286SECP256K1_APPEND_LDFLAGS .............. -fsanitize=undefined,address,fuzzer-no-link
287
288
289
290Configure summary
291=================
292Executables:
293  bitcoind ............................ OFF
294  bitcoin-node (multiprocess) ......... OFF
295  bitcoin-qt (GUI) .................... OFF
296  bitcoin-gui (GUI, multiprocess) ..... OFF
297  bitcoin-cli ......................... OFF
298  bitcoin-tx .......................... OFF
299  bitcoin-util ........................ OFF
300  bitcoin-wallet ...................... OFF
301  bitcoin-chainstate (experimental) ... OFF
302  libbitcoinkernel (experimental) ..... OFF
303Optional features:
304  wallet support ...................... ON
305   - legacy wallets (Berkeley DB) ..... OFF
306  external signer ..................... OFF
307  ZeroMQ .............................. OFF
308  USDT tracing ........................ OFF
309  QR code (GUI) ....................... OFF
310  DBus (GUI, Linux only) .............. OFF
311Tests:
312  test_bitcoin ........................ OFF
313  test_bitcoin-qt ..................... OFF
314  bench_bitcoin ....................... OFF
315  fuzz binary ......................... ON
316
317Cross compiling ....................... FALSE
318C++ compiler .......................... Clang 19.1.7, /opt/homebrew/opt/llvm/bin/clang++
319CMAKE_BUILD_TYPE ...................... RelWithDebInfo
320Preprocessor defined macros ........... FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION OBJC_OLD_DISPATCH_PROTOTYPES=0
321C++ compiler flags .................... -O2 -g -std=c++20 -fPIC -fdebug-prefix-map=/Users/prabhatverma/projects/bitcoin/src=. -fmacro-prefix-map=/Users/prabhatverma/projects/bitcoin/src=. -fsanitize=undefined,address,fuzzer-no-link -Wall -Wextra -Wgnu -Wformat -Wformat-security -Wvla -Wshadow-field -Wthread-safety -Wloop-analysis -Wredundant-decls -Wunused-member-function -Wdate-time -Wconditional-uninitialized -Woverloaded-virtual -Wsuggest-override -Wimplicit-fallthrough -Wunreachable-code -Wdocumentation -Wself-assign -Wundef -Wno-unused-parameter -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -Wstack-protector -fstack-protector-all -mbranch-protection=bti
322Linker flags .......................... -O2 -g -Wl,-dead_strip -Wl,-dead_strip_dylibs -Wl,-headerpad_max_install_names -fsanitize=undefined,address,fuzzer-no-link -fstack-protector-all -Wl,-fixup_chains -fPIE -Xlinker -pie
323
324NOTE: The summary above may not exactly match the final applied build flags
325      if any additional CMAKE_* or environment variables have been modified.
326      To see the exact flags applied, build with the --verbose option.
327
328Attempt to harden executables ......... ON
329Treat compiler warnings as errors ..... OFF
330Use ccache for compiling .............. OFF
331
332
333-- Configuring done (10.6s)
334-- Generating done (0.1s)
335-- Build files have been written to: /Users/prabhatverma/projects/bitcoin/build
  21. Crypt-iQ commented at 4:00 pm on April 3, 2025: contributor
    Does the issue occur with clang 18?
  22. Prabhat1308 commented at 4:15 pm on April 3, 2025: contributor

    Does the issue occur with clang 18?

    works with clang 18 but its bringing back https://github.com/bitcoin/bitcoin/issues/31591

  23. Crypt-iQ commented at 6:14 pm on April 8, 2025: contributor

    works with clang 18 but its bringing back #31591

    Ahh, I see. That’s annoying. I’m just ignoring the errors for now and it seems to work as expected. I’ve historically had a bit of trouble with macOS fuzzing and sometimes things just tend to break.


Prabhat1308 brunoerg maflcko Crypt-iQ

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