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-rw-r--r--src/cryptonote_core/blockchain_storage.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cryptonote_core/blockchain_storage.cpp b/src/cryptonote_core/blockchain_storage.cpp
index a5e19b061..d59fc7a58 100644
--- a/src/cryptonote_core/blockchain_storage.cpp
+++ b/src/cryptonote_core/blockchain_storage.cpp
@@ -1086,6 +1086,9 @@ bool blockchain_storage::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDO
uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
size_t i = (size_t)(frac*up_index_limit);
+ // just in case rounding up to 1 occurs after sqrt
+ if (i == up_index_limit)
+ --i;
if(used.count(i))
continue;
bool added = add_out_to_get_random_outs(amount_outs, result_outs, amount, i);