Bug#27407480: AUTOMATIC_SP_PRIVILEGES REQUIRES NEED THE INSERT PRIVILEGES FOR MYSQL.USER TABLE

A test case and a followup fix

mysql-test/r/sp-security.result

@@ -617,3 +617,24 @@ SELECT 1	latin1	latin1_swedish_ci	latin1_swedish_ci
 # Connection default
 DROP USER user2@localhost;
 DROP DATABASE db1;
+create user foo@local_ost;
+create user foo@`local\_ost` identified by 'nevermore';
+create database foodb;
+grant create routine on foodb.* to foo@local_ost;
+select user(), current_user();
+user()	current_user()
+foo@localhost	foo@local_ost
+show grants;
+Grants for foo@local_ost
+GRANT USAGE ON *.* TO 'foo'@'local_ost'
+GRANT CREATE ROUTINE ON `foodb`.* TO 'foo'@'local_ost'
+create procedure fooproc() select 'i am fooproc';
+show grants;
+Grants for foo@local_ost
+GRANT USAGE ON *.* TO 'foo'@'local_ost'
+GRANT CREATE ROUTINE ON `foodb`.* TO 'foo'@'local_ost'
+GRANT EXECUTE, ALTER ROUTINE ON PROCEDURE `test`.`fooproc` TO 'foo'@'local_ost'
+drop user foo@local_ost;
+drop user foo@`local\_ost`;
+drop procedure fooproc;
+drop database foodb;

mysql-test/t/sp-security.test

@@ -995,7 +995,24 @@ disconnect con2;
 DROP USER user2@localhost;
 DROP DATABASE db1;
 
+#
+# Bug#27407480: AUTOMATIC_SP_PRIVILEGES REQUIRES NEED THE INSERT PRIVILEGES FOR MYSQL.USER TABLE
+#
+create user foo@local_ost;
+create user foo@`local\_ost` identified by 'nevermore';
+create database foodb;
+grant create routine on foodb.* to foo@local_ost;
+connect con1,localhost,foo;
+select user(), current_user();
+show grants;
+create procedure fooproc() select 'i am fooproc';
+show grants;
+disconnect con1;
+connection default;
+drop user foo@local_ost;
+drop user foo@`local\_ost`;
+drop procedure fooproc;
+drop database foodb;
 
 # Wait till all disconnects are completed
 --source include/wait_until_count_sessions.inc
-

sql/sql_acl.cc

@@ -7190,7 +7190,7 @@ bool sp_grant_privileges(THD *thd, const char *sp_db, const char *sp_name,
   mysql_mutex_lock(&acl_cache->lock);
 
  if ((au= find_acl_user(combo->host.str= (char *) sctx->priv_host,
-                        combo->user.str, FALSE)))
+                        combo->user.str, TRUE)))
     goto found_acl;
 
   mysql_mutex_unlock(&acl_cache->lock);