MDEV-23010 UPDATE privilege at Database and Table level fail to update with...

MDEV-23010 UPDATE privilege at Database and Table level fail to update with SELECT command denied to user

check both column- and table-level grants when looking for SELECT
privilege on UPDATE statement.

mysql-test/r/grant5.result

@@ -23,3 +23,13 @@ ERROR HY000: Table 'user' was not locked with LOCK TABLES
 REVOKE PROCESS ON *.* FROM u;
 ERROR HY000: Table 'user' was not locked with LOCK TABLES
 DROP TABLE t1;
+create database mysqltest1;
+use mysqltest1;
+create table t1(id int);
+insert t1 values(2);
+create user u1@localhost;
+grant select on mysqltest1.t1 to u1@localhost;
+grant update on mysqltest1.* to u1@localhost;
+update mysqltest1.t1 set id=1 where id=2;
+drop user u1@localhost;
+drop database mysqltest1;

mysql-test/t/grant5.test

@@ -20,6 +20,7 @@ show grants for foo;  # role
 --error ER_DBACCESS_DENIED_ERROR
 show grants for foo@'%'; # user
 --connection default
+--disconnect conn_1
 drop user test, foo;
 drop role foo;
 
@@ -33,3 +34,24 @@ REVOKE EXECUTE ON PROCEDURE sp FROM u;
 --error ER_TABLE_NOT_LOCKED
 REVOKE PROCESS ON *.* FROM u;
 DROP TABLE t1;
+
+#
+# MDEV-23010 UPDATE privilege at Database and Table level fail to update with SELECT command denied to user
+#
+create database mysqltest1;
+use mysqltest1;
+create table t1(id int);
+insert t1 values(2);
+create user u1@localhost;
+grant select on mysqltest1.t1 to u1@localhost;
+grant update on mysqltest1.* to u1@localhost;
+connect u1, localhost, u1;
+update mysqltest1.t1 set id=1 where id=2;
+connection default;
+disconnect u1;
+drop user u1@localhost;
+drop database mysqltest1;
+
+#
+# End of 10.1 tests
+#

sql/sql_acl.cc

@@ -7135,9 +7135,13 @@ static void check_grant_column_int(GRANT_TABLE *grant_table, const char *name,
 {
   if (grant_table)
   {
-    GRANT_COLUMN *grant_column= column_hash_search(grant_table, name, length);
-    if (grant_column)
-      *want_access&= ~grant_column->rights;
+    *want_access&= ~grant_table->privs;
+    if (*want_access & grant_table->cols)
+    {
+      GRANT_COLUMN *grant_column= column_hash_search(grant_table, name, length);
+      if (grant_column)
+        *want_access&= ~grant_column->rights;
+    }
   }
 }