From 7fcd0b55ea9736d5783516177b1d6bcb5b0907c2 Mon Sep 17 00:00:00 2001 From: moneromooo-monero Date: Thu, 10 Oct 2019 11:46:39 +0000 Subject: [PATCH] blockchain: initialize pow to ff..ff as a safety to reject if it somehow does not get initialised --- src/cryptonote_core/blockchain.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index b672ccd6e..eb75db0aa 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -1694,7 +1694,8 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id // Check the block's hash against the difficulty target for its alt chain difficulty_type current_diff = get_next_difficulty_for_alternative_chain(alt_chain, bei); CHECK_AND_ASSERT_MES(current_diff, false, "!!!!!!! DIFFICULTY OVERHEAD !!!!!!!"); - crypto::hash proof_of_work = null_hash; + crypto::hash proof_of_work; + memset(proof_of_work.data, 0xff, sizeof(proof_of_work.data)); if (b.major_version >= RX_BLOCK_VERSION) { crypto::hash seedhash = null_hash; @@ -3700,7 +3701,8 @@ leave: TIME_MEASURE_START(longhash_calculating_time); - crypto::hash proof_of_work = null_hash; + crypto::hash proof_of_work; + memset(proof_of_work.data, 0xff, sizeof(proof_of_work.data)); // Formerly the code below contained an if loop with the following condition // !m_checkpoints.is_in_checkpoint_zone(get_current_blockchain_height())