MDEV-13972 crash in Item_func_sec_to_time::get_date

mysql-test/r/ctype_ucs.result

@@ -4367,5 +4367,13 @@ NO_ENGINE_SUBSTITUTION
 SET sql_mode=DEFAULT;
 SET NAMES utf8;
 #
+# MDEV-13972 crash in Item_func_sec_to_time::get_date
+#
+SELECT SEC_TO_TIME(CONVERT(900*24*60*60 USING ucs2));
+SEC_TO_TIME(CONVERT(900*24*60*60 USING ucs2))
+838:59:59.999999
+Warnings:
+Warning	1292	Truncated incorrect time value: '77760000'
+#
 # End of 5.5 tests
 #

mysql-test/r/func_time.result

@@ -2638,5 +2638,25 @@ a
 DROP TABLE t1;
 SET sql_mode=DEFAULT;
 #
+# MDEV-13972 crash in Item_func_sec_to_time::get_date
+#
+DO TO_DAYS(SEC_TO_TIME(TIME(CEILING(UUID()))));
+DO TO_DAYS(SEC_TO_TIME(MAKEDATE('',RAND(~('')))));
+Warnings:
+Warning	1292	Truncated incorrect INTEGER value: ''
+Warning	1292	Truncated incorrect INTEGER value: ''
+Warning	1292	Truncated incorrect INTEGER value: ''
+Warning	1292	Truncated incorrect time value: '20000101'
+SELECT TO_DAYS(SEC_TO_TIME(MAKEDATE(0,RAND(~0))));
+TO_DAYS(SEC_TO_TIME(MAKEDATE(0,RAND(~0))))
+0
+Warnings:
+Warning	1292	Truncated incorrect time value: '20000101'
+SELECT SEC_TO_TIME(MAKEDATE(0,RAND(~0)));
+SEC_TO_TIME(MAKEDATE(0,RAND(~0)))
+838:59:59
+Warnings:
+Warning	1292	Truncated incorrect time value: '20000101'
+#
 # End of 5.5 tests
 #

mysql-test/t/ctype_ucs.test

@@ -862,6 +862,13 @@ SELECT @@sql_mode;
 SET sql_mode=DEFAULT;
 SET NAMES utf8;
 
+--echo #
+--echo # MDEV-13972 crash in Item_func_sec_to_time::get_date
+--echo #
+
+SELECT SEC_TO_TIME(CONVERT(900*24*60*60 USING ucs2));
+
+
 --echo #
 --echo # End of 5.5 tests
 --echo #

mysql-test/t/func_time.test

@@ -1615,6 +1615,21 @@ SELECT * FROM t1;
 DROP TABLE t1;
 SET sql_mode=DEFAULT;
 
+
+--echo #
+--echo # MDEV-13972 crash in Item_func_sec_to_time::get_date
+--echo #
+
+# The below query can return warning sporadically
+--disable_warnings
+DO TO_DAYS(SEC_TO_TIME(TIME(CEILING(UUID()))));
+--enable_warnings
+
+DO TO_DAYS(SEC_TO_TIME(MAKEDATE('',RAND(~('')))));
+SELECT TO_DAYS(SEC_TO_TIME(MAKEDATE(0,RAND(~0))));
+SELECT SEC_TO_TIME(MAKEDATE(0,RAND(~0)));
+
+
 --echo #
 --echo # End of 5.5 tests
 --echo #

sql/item_timefunc.cc

@@ -1733,9 +1733,18 @@ bool Item_func_sec_to_time::get_date(MYSQL_TIME *ltime, ulonglong fuzzy_date)
 
   ltime->hour= TIME_MAX_HOUR+1;
   check_time_range(ltime, decimals, &unused);
-  make_truncated_value_warning(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-                               err->ptr(), err->length(),
-                               MYSQL_TIMESTAMP_TIME, NullS);
+  if (!err)
+  {
+    ErrConvInteger err2(sec, unsigned_flag);
+    make_truncated_value_warning(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                                 &err2, MYSQL_TIMESTAMP_TIME, NullS);
+  }
+  else
+  {
+    ErrConvString err2(err);
+    make_truncated_value_warning(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                                 &err2, MYSQL_TIMESTAMP_TIME, NullS);
+  }
   return 0;
 }