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protocol: one more sanity check on usable data from a peer

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moneromooo-monero 2020-12-10 22:59:15 +00:00
parent 316dcaa399
commit cd7e9769d8
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@ -2522,7 +2522,7 @@ skip:
} }
uint64_t n_use_blocks = m_core.prevalidate_block_hashes(arg.start_height, arg.m_block_ids, arg.m_block_weights); 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"); LOG_ERROR_CCONTEXT("Most blocks are invalid, dropping connection");
drop_connection(context, true, false); drop_connection(context, true, false);