diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptonote_core/blockchain.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 86efc8821..e3ce66073 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -2008,9 +2008,7 @@ bool Blockchain::have_tx_keyimges_as_spent(const transaction &tx) const return false; } //------------------------------------------------------------------ -// This function validates transaction inputs and their keys. Previously -// it also performed double spend checking, but that has been moved to its -// own function. +// This function validates transaction inputs and their keys. bool Blockchain::check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height) { LOG_PRINT_L3("Blockchain::" << __func__); @@ -2112,6 +2110,12 @@ bool Blockchain::check_tx_inputs(const transaction& tx, uint64_t* pmax_used_bloc // make sure tx output has key offset(s) (is signed to be used) CHECK_AND_ASSERT_MES(in_to_key.key_offsets.size(), false, "empty in_to_key.key_offsets in transaction with id " << get_transaction_hash(tx)); + if(have_tx_keyimg_as_spent(in_to_key.k_image)) + { + LOG_PRINT_L1("Key image already spent in blockchain: " << epee::string_tools::pod_to_hex(in_to_key.k_image)); + return false; + } + // basically, make sure number of inputs == number of signatures CHECK_AND_ASSERT_MES(sig_index < tx.signatures.size(), false, "wrong transaction: not signature entry for input with index= " << sig_index); |