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fuzz: Avoid unsigned integer overflow in FormatParagraph

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MarcoFalke 2022-02-09 14:38:56 +01:00
parent 8ac79973f8
commit fa2f7d0059
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GPG key ID: CE2B75697E69A548
2 changed files with 3 additions and 1 deletions
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3
src/test/fuzz/string.cpp
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@ -145,7 +145,8 @@ FUZZ_TARGET(string)
(void)CopyrightHolders(random_string_1);
FeeEstimateMode fee_estimate_mode;
(void)FeeModeFromString(random_string_1, fee_estimate_mode);
(void)FormatParagraph(random_string_1, fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 1000), fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 1000));
const auto width{fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 1000)};
(void)FormatParagraph(random_string_1, width, fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, width));
(void)FormatSubVersion(random_string_1, fuzzed_data_provider.ConsumeIntegral<int>(), random_string_vector);
(void)GetDescriptorChecksum(random_string_1);
(void)HelpExampleCli(random_string_1, random_string_2);

1
src/util/strencodings.cpp
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@ -328,6 +328,7 @@ bool ParseUInt64(const std::string& str, uint64_t* out)
std::string FormatParagraph(const std::string& in, size_t width, size_t indent)
{
assert(width >= indent);
std::stringstream out;
size_t ptr = 0;
size_t indented = 0;