Merge pull request #5639

2eef90d6 rpc: restrict the recent cutoff size in restricted RPC mode (moneromooo-monero)
0564da5f ensure no NULL is passed to memcpy (moneromooo-monero)
bc09766b abstract_tcp_server2: improve DoS resistance (moneromooo-monero)
1387549e serialization: check stream good flag at the end (moneromooo-monero)
a00cabd4 tree-hash: allocate variable memory on heap, not stack (moneromooo-monero)
f2152192 cryptonote: throw on tx hash calculation error (moneromooo-monero)
db2b9fba serialization: fail on read_varint error (moneromooo-monero)
68ad5481 cryptonote_protocol: fix another potential P2P DoS (moneromooo-monero)
1cc61018 cryptonote_protocol: expand basic DoS protection (moneromooo-monero)
8f66b705 cryptonote_protocol_handler: prevent potential DoS (anonimal)
39169ace epee: basic sanity check on allocation size from untrusted source (moneromooo-monero)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp
index a03a0989b..f05eb0f30 100644
--- a/src/blockchain_db/lmdb/db_lmdb.cpp
+++ b/src/blockchain_db/lmdb/db_lmdb.cpp
@@ -1077,11 +1077,11 @@ void BlockchainLMDB::add_tx_amount_output_indices(const uint64_t tx_id,
 
   int result = 0;
 
-  int num_outputs = amount_output_indices.size();
+  size_t num_outputs = amount_output_indices.size();
 
   MDB_val_set(k_tx_id, tx_id);
   MDB_val v;
-  v.mv_data = (void *)amount_output_indices.data();
+  v.mv_data = num_outputs ? (void *)amount_output_indices.data() : (void*)"";
   v.mv_size = sizeof(uint64_t) * num_outputs;
   // LOG_PRINT_L1("tx_outputs[tx_hash] size: " << v.mv_size);