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blockchain: fix invalid memory read getting fee on empty chain

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Crypto City 2022-08-19 14:15:29 +00:00 committed by moneromooo-monero
parent b6a029f222
commit 6f0fb76025
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1 changed files with 1 additions and 1 deletions
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src/cryptonote_core/blockchain.cpp
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@ -3868,7 +3868,7 @@ void Blockchain::get_dynamic_base_fee_estimate_2021_scaling(uint64_t grace_block
epee::misc_utils::rolling_median_t<uint64_t> rm = m_long_term_block_weights_cache_rolling_median;
for (size_t i = 0; i < grace_blocks; ++i)
rm.insert(0);
const uint64_t Mlw_penalty_free_zone_for_wallet = std::max<uint64_t>(rm.median(), CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5);
const uint64_t Mlw_penalty_free_zone_for_wallet = std::max<uint64_t>(rm.size() == 0 ? 0 : rm.median(), CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5);
// Msw: median over [100 - grace blocks] past + [grace blocks] future blocks
CHECK_AND_ASSERT_THROW_MES(grace_blocks <= 100, "Grace blocks invalid In 2021 fee scaling estimate.");