From dfbb85b6fef5daf26d5c1359245dec71606e6076 Mon Sep 17 00:00:00 2001 From: moneromooo-monero Date: Thu, 8 Dec 2016 22:26:27 +0000 Subject: [PATCH] blockchain: fix setting non trovial alternate chain as invalid The wrong iterator was being used. Also preincrement iterators to avoid possibly invalidating them, I'm not sure this is necessary, but let's be safe. --- src/cryptonote_core/blockchain.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index df9c0f3f..df24204f 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -832,12 +832,12 @@ bool Blockchain::switch_to_alternative_blockchain(std::listsecond, get_block_hash(ch_ent->second.bl)); LOG_PRINT_L1("The block was inserted as invalid while connecting new alternative chain, block_id: " << get_block_hash(ch_ent->second.bl)); - m_alternative_chains.erase(ch_ent); + m_alternative_chains.erase(*alt_ch_iter++); - for(auto alt_ch_to_orph_iter = ++alt_ch_iter; alt_ch_to_orph_iter != alt_chain.end(); alt_ch_to_orph_iter++) + for(auto alt_ch_to_orph_iter = alt_ch_iter; alt_ch_to_orph_iter != alt_chain.end(); ) { - add_block_as_invalid((*alt_ch_iter)->second, (*alt_ch_iter)->first); - m_alternative_chains.erase(*alt_ch_to_orph_iter); + add_block_as_invalid((*alt_ch_to_orph_iter)->second, (*alt_ch_to_orph_iter)->first); + m_alternative_chains.erase(*alt_ch_to_orph_iter++); } return false; }