memset str on cache_db_sql2str

diff --git a/src/switch_core_sqldb.c b/src/switch_core_sqldb.c
index 27bac6d4b4d17ddfe9fcd60af4868b11b59dae04..7f2c9c712ff7ddb2c62f7490e5c9514689e9503b 100644 (file)
--- a/src/switch_core_sqldb.c
+++ b/src/switch_core_sqldb.c
@@ -606,6 +606,8 @@ SWITCH_DECLARE(char *) switch_cache_db_execute_sql2str(switch_cache_db_handle_t
 
        if (io_mutex) switch_mutex_lock(io_mutex);
 
+       memset(str, 0, len);
+
        switch (dbh->type) {
        case SCDB_TYPE_CORE_DB:
                {