diff --git a/src/sql/engine/expr/ob_expr_st_aswkb.cpp b/src/sql/engine/expr/ob_expr_st_aswkb.cpp
index 7e4c35c59b..30f84cc03d 100644
--- a/src/sql/engine/expr/ob_expr_st_aswkb.cpp
+++ b/src/sql/engine/expr/ob_expr_st_aswkb.cpp
@@ -152,11 +152,11 @@ int ObExprGeomWkb::eval_geom_wkb(const ObExpr &expr,
                                                         axis_order))) {
       LOG_WARN("fail to parse axis order option string", K(ret), K(option_str));
       ret = OB_ERR_INVALID_OPTION_KEY_VALUE_PAIR; // adapt mysql errcode.
+      const uint64_t STR_LEN_MAX = 512;
+      char err_str[STR_LEN_MAX] = {0};
       const int64_t len = option_str.length();
-      char str[len + 1];
-      str[len] = '\0';
-      MEMCPY(str, option_str.ptr(), len);
-      LOG_USER_ERROR(OB_ERR_INVALID_OPTION_KEY_VALUE_PAIR, str, '=', get_func_name());
+      MEMCPY(err_str, option_str.ptr(), (len >= STR_LEN_MAX ? (STR_LEN_MAX - 1) : len));
+      LOG_USER_ERROR(OB_ERR_INVALID_OPTION_KEY_VALUE_PAIR, err_str, '=', get_func_name());
     } else if (OB_FAIL(ObGeoExprUtils::check_need_reverse(axis_order, need_reverse))) {
       LOG_WARN("fail to check need reverse", K(ret), K(axis_order));
     }
diff --git a/src/sql/engine/expr/ob_expr_st_srid.cpp b/src/sql/engine/expr/ob_expr_st_srid.cpp
index 34125a2b1e..55974cdc9c 100644
--- a/src/sql/engine/expr/ob_expr_st_srid.cpp
+++ b/src/sql/engine/expr/ob_expr_st_srid.cpp
@@ -64,14 +64,15 @@ int ObExprSTSRID::calc_result_typeN(ObExprResType& type,
     } else if (!ob_is_geometry(types_stack[0].get_type()) && !ob_is_string_type(types_stack[0].get_type())) {
       ret = OB_ERR_GIS_INVALID_DATA;
       LOG_USER_ERROR(OB_ERR_GIS_INVALID_DATA, get_name());
-    } else {
-      type.set_int32();
     }
-    if (OB_SUCC(ret) && param_num > 1) {
-      types_stack[1].set_calc_type(ObIntType);
-      type_ctx.set_cast_mode(type_ctx.get_cast_mode() | CM_STRING_INTEGER_TRUNC);
-      type.set_geometry();
-      type.set_length((ObAccuracy::DDL_DEFAULT_ACCURACY[ObGeometryType]).get_length());
+    if (OB_SUCC(ret)) {
+      type.set_int32();
+      if (param_num > 1) {
+        types_stack[1].set_calc_type(ObIntType);
+        type_ctx.set_cast_mode(type_ctx.get_cast_mode() | CM_STRING_INTEGER_TRUNC);
+        type.set_geometry();
+        type.set_length((ObAccuracy::DDL_DEFAULT_ACCURACY[ObGeometryType]).get_length());
+      }
     }
   }
 
diff --git a/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_aswkb_mysql.result b/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_aswkb_mysql.result
index ab0ccc5fe6..29bdf650f6 100644
--- a/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_aswkb_mysql.result
+++ b/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_aswkb_mysql.result
@@ -1149,3 +1149,5 @@ select _st_asewkb(x'000000000105000000030000000102000000020000000000000000002440
 ERROR 22023: Invalid GIS data provided to function _st_asewkb.
 select st_asbinary(x'000000000104000000060000000101000000000000000000244000000000000014400102000000020000000000000000002E400000000000002E400000000000003440000000000000344001030000000100000004000000000000000000F03F00000000000000000000000000002440000000000000000000000000000024400000000000002440000000000000F03F000000000000000001040000000200000001010000000000000000000000000000000000000001010000000000000000003440000000000000344001050000000200000001020000000200000000000000000014400000000000002440000000000000144000000000000034400102000000020000000000000000002E4000000000000024400000000000003E400000000000002E4001060000000200000001030000000100000005000000000000000000F03F0000000000000000000000000000244000000000000000000000000000002440000000000000244000000000000000000000000000002440000000000000F03F000000000000000001030000000100000005000000000000000000184000000000000014400000000000001C4000000000000014400000000000001C400000000000001C4000000000000014400000000000001C4000000000000018400000000000001440');
 ERROR 22023: Invalid GIS data provided to function st_asbinary.
+SELECT ST_ASWKB(POINT(0,0), REPEAT('{"a"', 100000));
+ERROR 22023: The string '{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"{"a"' is not a valid key = value pair in function st_aswkb.
diff --git a/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_srid_mysql.result b/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_srid_mysql.result
index 6dbb5bd546..f72a4ac594 100644
--- a/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_srid_mysql.result
+++ b/tools/deploy/mysql_test/test_suite/geometry/r/mysql/st_srid_mysql.result
@@ -152,3 +152,8 @@ bugfix: 53257405
 select st_srid(st_geomfromtext('point(100 100)')) - 3;
 st_srid(st_geomfromtext('point(100 100)')) - 3
 -3
+select weight_string(st_srid(NULL));
+weight_string(st_srid(NULL))
+NULL
+select weight_string(st_srid(3333));
+ERROR 22023: Invalid GIS data provided to function st_srid.
diff --git a/tools/deploy/mysql_test/test_suite/geometry/t/st_aswkb_mysql.test b/tools/deploy/mysql_test/test_suite/geometry/t/st_aswkb_mysql.test
index 4a59e26147..a73514632b 100644
--- a/tools/deploy/mysql_test/test_suite/geometry/t/st_aswkb_mysql.test
+++ b/tools/deploy/mysql_test/test_suite/geometry/t/st_aswkb_mysql.test
@@ -696,3 +696,5 @@ select _st_asewkb(x'000000000105000000030000000102000000020000000000000000002440
 # bugfix: 
 --error 3037
 select st_asbinary(x'000000000104000000060000000101000000000000000000244000000000000014400102000000020000000000000000002E400000000000002E400000000000003440000000000000344001030000000100000004000000000000000000F03F00000000000000000000000000002440000000000000000000000000000024400000000000002440000000000000F03F000000000000000001040000000200000001010000000000000000000000000000000000000001010000000000000000003440000000000000344001050000000200000001020000000200000000000000000014400000000000002440000000000000144000000000000034400102000000020000000000000000002E4000000000000024400000000000003E400000000000002E4001060000000200000001030000000100000005000000000000000000F03F0000000000000000000000000000244000000000000000000000000000002440000000000000244000000000000000000000000000002440000000000000F03F000000000000000001030000000100000005000000000000000000184000000000000014400000000000001C4000000000000014400000000000001C400000000000001C4000000000000014400000000000001C4000000000000018400000000000001440');
+--error 3560
+SELECT ST_ASWKB(POINT(0,0), REPEAT('{"a"', 100000));
\ No newline at end of file
diff --git a/tools/deploy/mysql_test/test_suite/geometry/t/st_srid_mysql.test b/tools/deploy/mysql_test/test_suite/geometry/t/st_srid_mysql.test
index 3113610bc4..cd2b1e78e9 100644
--- a/tools/deploy/mysql_test/test_suite/geometry/t/st_srid_mysql.test
+++ b/tools/deploy/mysql_test/test_suite/geometry/t/st_srid_mysql.test
@@ -119,4 +119,8 @@ SELECT _ST_SETSRID(ST_GEOMFROMTEXT('POINT'),NULL);
 select st_astext(st_srid(x'0000000001030000000300000005000000000010000000000000000000000000000000000000002440000000000000000000000000000024400000000000002440000000000000000000000000000024400000000000000000000000000000000005000000000000000000144000000000000014400000000000001C4000000000000014400000000000001C400000000000001C4000000000000014400000000000001C40000000000000144000000000000014410500000000000000000014C000000000000014C00000000000001CC000000000000014C00000000000001CC00000000000001CC000000000000014C00000000000001CC000000000000014C000000000000014C0',0));
 
 --echo bugfix: 53257405
-select st_srid(st_geomfromtext('point(100 100)')) - 3;
\ No newline at end of file
+select st_srid(st_geomfromtext('point(100 100)')) - 3;
+
+select weight_string(st_srid(NULL));
+--error 3037
+select weight_string(st_srid(3333));
\ No newline at end of file