fix stack buffer overflow

1 files changed, 1 insertions, 3 deletions

diff --git a/ydb/core/tx/datashard/testload/test_load_upsert.cpp b/ydb/core/tx/datashard/testload/test_load_upsert.cpp
index cdc2b29b9c5..a64b1e75925 100644
--- a/ydb/core/tx/datashard/testload/test_load_upsert.cpp
+++ b/ydb/core/tx/datashard/testload/test_load_upsert.cpp
@@ -37,9 +37,7 @@ enum class ERequestType {
 
 TString GetKey(size_t n) {
     // user1000385178204227360
-    char buf[24];
-    sprintf(buf, "user%.19lu", n);
-    return buf;
+    return Sprintf("user%.19lu", n);
 }
 
 const TString Value = TString(100, 'x');