foster/bitcoin-bitcoin-core
0
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-02-10 10:52:31 -05:00
Code Issues Activity

fuzz: Limit max insertions in timedata fuzz test

Browse source
This commit is contained in:
MarcoFalke 2021-05-11 09:27:13 +02:00
parent d2f6d2976f
commit fa95555a49
No known key found for this signature in database
GPG key ID: CE2B75697E69A548
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/test/fuzz/timedata.cpp
View file

@ -15,10 +15,12 @@ FUZZ_TARGET(timedata)
{ {
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const unsigned int max_size = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 1000); const unsigned int max_size = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 1000);
// A max_size of 0 implies no limit, so cap the max number of insertions to avoid timeouts
auto max_to_insert = fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 4000);
// Divide by 2 to avoid signed integer overflow in .median() // Divide by 2 to avoid signed integer overflow in .median()
const int64_t initial_value = fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2; const int64_t initial_value = fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2;
CMedianFilter<int64_t> median_filter{max_size, initial_value}; CMedianFilter<int64_t> median_filter{max_size, initial_value};
while (fuzzed_data_provider.remaining_bytes() > 0) { while (fuzzed_data_provider.remaining_bytes() > 0 && --max_to_insert >= 0) {
(void)median_filter.median(); (void)median_filter.median();
assert(median_filter.size() > 0); assert(median_filter.size() > 0);
assert(static_cast<size_t>(median_filter.size()) == median_filter.sorted().size()); assert(static_cast<size_t>(median_filter.size()) == median_filter.sorted().size());