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Merge pull request #7122 

3a3370096 protocol: one more sanity check on usable data from a peer (moneromooo-monero)
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Alexander Blair 2020-12-10 17:57:18 -08:00
parent 575f6b5f13 3a3370096e
commit 7a9ba3f154
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1 changed files with 1 additions and 1 deletions
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2
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -2528,7 +2528,7 @@ skip:
}
uint64_t n_use_blocks = m_core.prevalidate_block_hashes(arg.start_height, arg.m_block_ids, arg.m_block_weights);
if (n_use_blocks + HASH_OF_HASHES_STEP <= arg.m_block_ids.size())
if (n_use_blocks == 0 || n_use_blocks + HASH_OF_HASHES_STEP <= arg.m_block_ids.size())
{
LOG_ERROR_CCONTEXT("Most blocks are invalid, dropping connection");
drop_connection(context, true, false);