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Merged
merged 1 commit into from
Nov 3, 2024
Merged

Add fuzz corpus for wallet_create_transaction #210

merged 1 commit into from
Nov 3, 2024

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@murchandamus
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I saw that this new fuzz target was added and fuzzed it for a few hours to create an initial corpus.

@maflcko
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maflcko commented Oct 31, 2024

cc @brunoerg

/ci_container_base/src/wallet/fees.cpp:58:58: runtime error: implicit conversion from type 'unsigned int' of value 4294967292 (32-bit, unsigned) to type 'int' changed the value to -4 (32-bit, signed)
    #0 0x55b6fd26c021 in wallet::GetMinimumFeeRate(wallet::CWallet const&, wallet::CCoinControl const&, FeeCalculation*) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/fees.cpp:58:58
    #1 0x55b6fd3ef5ca in wallet::CreateTransactionInternal(wallet::CWallet&, std::vector<wallet::CRecipient, std::allocator<wallet::CRecipient>> const&, std::optional<unsigned int>, wallet::CCoinControl const&, bool) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/spend.cpp:1101:49
    #2 0x55b6fd3ebea5 in wallet::CreateTransaction(wallet::CWallet&, std::vector<wallet::CRecipient, std::allocator<wallet::CRecipient>> const&, std::optional<unsigned int>, wallet::CCoinControl const&, bool) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/spend.cpp:1382:16
    #3 0x55b6fccbc154 in wallet::(anonymous namespace)::wallet_create_transaction_fuzz_target(std::span<unsigned char const, 18446744073709551615ul>) ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/./src/wallet/test/fuzz/spend.cpp:99:11
    #4 0x55b6fccda45d in std::function<void (std::span<unsigned char const, 18446744073709551615ul>)>::operator()(std::span<unsigned char const, 18446744073709551615ul>) const /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/std_function.h:591:9
    #5 0x55b6fccda45d in LLVMFuzzerTestOneInput ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/util/./src/test/fuzz/fuzz.cpp:211:5
    #6 0x55b6fc368484 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8a484) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #7 0x55b6fc367b79 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c89b79) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #8 0x55b6fc369796 in fuzzer::Fuzzer::ReadAndExecuteSeedCorpora(std::vector<fuzzer::SizedFile, std::allocator<fuzzer::SizedFile>>&) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8b796) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #9 0x55b6fc369ca7 in fuzzer::Fuzzer::Loop(std::vector<fuzzer::SizedFile, std::allocator<fuzzer::SizedFile>>&) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8bca7) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #10 0x55b6fc35719f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c7919f) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #11 0x55b6fc381826 in main (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1ca3826) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)
    #12 0x7f934c6661c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #13 0x7f934c66628a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #14 0x55b6fc34c184 in _start (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c6e184) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

SUMMARY: UndefinedBehaviorSanitizer: implicit-integer-sign-change /ci_container_base/src/wallet/fees.cpp:58:58 
MS: 0 ; base unit: 0000000000000000000000000000000000000000
0x2e,0x1,0xb0,0xb8,0x0,0xff,0xff,0xff,0xff,0x60,0x14,0x22,0xff,0xff,0xff,0xff,0xff,0xfd,0xff,0xff,0xff,0xff,0xff,0x7e,0xf9,0x41,0x8,0x2b,0x17,0x58,0xb,0x17,0xfc,0xff,0xff,0xff,0xff,0xff,0xff,0x7e,0xf9,0x41,0x8,0x2b,0x17,0x58,0xb,
.\001\260\270\000\377\377\377\377`\024\"\377\377\377\377\377\375\377\377\377\377\377~\371A\010+\027X\013\027\374\377\377\377\377\377\377~\371A\010+\027X\013
artifact_prefix='./'; Test unit written to ./crash-5627f57ffba7568a500f8379f62c3338978b43f2
Base64: LgGwuAD/////YBQi///////9//////9++UEIKxdYCxf8////////fvlBCCsXWAs=

@brunoerg
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cc @brunoerg


/ci_container_base/src/wallet/fees.cpp:58:58: runtime error: implicit conversion from type 'unsigned int' of value 4294967292 (32-bit, unsigned) to type 'int' changed the value to -4 (32-bit, signed)

    #0 0x55b6fd26c021 in wallet::GetMinimumFeeRate(wallet::CWallet const&, wallet::CCoinControl const&, FeeCalculation*) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/fees.cpp:58:58

    #1 0x55b6fd3ef5ca in wallet::CreateTransactionInternal(wallet::CWallet&, std::vector<wallet::CRecipient, std::allocator<wallet::CRecipient>> const&, std::optional<unsigned int>, wallet::CCoinControl const&, bool) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/spend.cpp:1101:49

    #2 0x55b6fd3ebea5 in wallet::CreateTransaction(wallet::CWallet&, std::vector<wallet::CRecipient, std::allocator<wallet::CRecipient>> const&, std::optional<unsigned int>, wallet::CCoinControl const&, bool) ci/scratch/build-x86_64-pc-linux-gnu/src/wallet/./src/wallet/spend.cpp:1382:16

    #3 0x55b6fccbc154 in wallet::(anonymous namespace)::wallet_create_transaction_fuzz_target(std::span<unsigned char const, 18446744073709551615ul>) ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/./src/wallet/test/fuzz/spend.cpp:99:11

    #4 0x55b6fccda45d in std::function<void (std::span<unsigned char const, 18446744073709551615ul>)>::operator()(std::span<unsigned char const, 18446744073709551615ul>) const /usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/std_function.h:591:9

    #5 0x55b6fccda45d in LLVMFuzzerTestOneInput ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/util/./src/test/fuzz/fuzz.cpp:211:5

    #6 0x55b6fc368484 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8a484) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #7 0x55b6fc367b79 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c89b79) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #8 0x55b6fc369796 in fuzzer::Fuzzer::ReadAndExecuteSeedCorpora(std::vector<fuzzer::SizedFile, std::allocator<fuzzer::SizedFile>>&) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8b796) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #9 0x55b6fc369ca7 in fuzzer::Fuzzer::Loop(std::vector<fuzzer::SizedFile, std::allocator<fuzzer::SizedFile>>&) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c8bca7) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #10 0x55b6fc35719f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c7919f) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #11 0x55b6fc381826 in main (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1ca3826) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)

    #12 0x7f934c6661c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)

    #13 0x7f934c66628a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)

    #14 0x55b6fc34c184 in _start (/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x1c6e184) (BuildId: d11f8692b05f02b5a14b6e7579598b426e3144c5)



SUMMARY: UndefinedBehaviorSanitizer: implicit-integer-sign-change /ci_container_base/src/wallet/fees.cpp:58:58 

MS: 0 ; base unit: 0000000000000000000000000000000000000000

0x2e,0x1,0xb0,0xb8,0x0,0xff,0xff,0xff,0xff,0x60,0x14,0x22,0xff,0xff,0xff,0xff,0xff,0xfd,0xff,0xff,0xff,0xff,0xff,0x7e,0xf9,0x41,0x8,0x2b,0x17,0x58,0xb,0x17,0xfc,0xff,0xff,0xff,0xff,0xff,0xff,0x7e,0xf9,0x41,0x8,0x2b,0x17,0x58,0xb,

.\001\260\270\000\377\377\377\377`\024\"\377\377\377\377\377\375\377\377\377\377\377~\371A\010+\027X\013\027\374\377\377\377\377\377\377~\371A\010+\027X\013

artifact_prefix='./'; Test unit written to ./crash-5627f57ffba7568a500f8379f62c3338978b43f2

Base64: LgGwuAD/////YBQi///////9//////9++UEIKxdYCxf8////////fvlBCCsXWAs=

Thanks. I'm in the airport atm, as soon as I arrive I can see it.

@brunoerg
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brunoerg commented Nov 1, 2024

bitcoin/bitcoin#31203 fixes it.

@maflcko maflcko merged commit d964b0c into bitcoin-core:main Nov 3, 2024
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@murchandamus
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murchandamus commented Nov 4, 2024 •
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Oh, I fuzzed a bit more and redid the merge in case the change in the fuzz target changes which inputs exercise the code best, but it was still running on Friday when I left. I’ll just upstream them in December then.

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@murchandamus @maflcko @brunoerg