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Merge Bug#7391 from 4.0 


mysql-test/r/update.result:
  Auto merged
mysql-test/t/update.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/mysql-test-run.sh:
  Merge from 4.0
parents 4e8e1ef3 047f7904
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Showing with 158 additions and 11 deletions
mysql-test/mysql-test-run.sh
View file @ 02453262
......@@ -4,6 +4,7 @@
# Slightly updated by Monty
# Cleaned up again by Matt
# Fixed by Sergei
# List of failed cases (--force) backported from 4.1 by Joerg
# :-)
#++
......@@ -1348,7 +1349,7 @@ run_testcase ()
result_file="$result_file$RESULT_EXT"
fi
if [ "$USE_MANAGER" = 1 ] ; then
many_slaves=`$EXPR \( \( $tname : rpl_failsafe \) != 0 \) \| \( \( $tname : rpl_chain_temp_table \) != 0 \)`
many_slaves=`$EXPR \( \( $tname : rpl_failsafe \) != 0 \) \| \( \( $tname : rpl_chain_temp_table \) != 0 \)`
fi
if $EXPR "$tname" '<' "$START_FROM" > /dev/null ; then
#skip_test $tname
......
mysql-test/r/grant.result
View file @ 02453262
......@@ -341,3 +341,67 @@ select Host,Db,User,Table_name,Column_name,Column_priv from mysql.columns_priv;
Host Db User Table_name Column_name Column_priv
drop user grant_user@localhost;
drop table t1;
create database mysqltest_1;
create database mysqltest_2;
create table mysqltest_1.t1 select 1 a, 2 q;
create table mysqltest_1.t2 select 1 b, 2 r;
create table mysqltest_2.t1 select 1 c, 2 s;
create table mysqltest_2.t2 select 1 d, 2 t;
grant update (a) on mysqltest_1.t1 to mysqltest_3@localhost;
grant select (b) on mysqltest_1.t2 to mysqltest_3@localhost;
grant select (c) on mysqltest_2.t1 to mysqltest_3@localhost;
grant update (d) on mysqltest_2.t2 to mysqltest_3@localhost;
show grants for mysqltest_3@localhost;
Grants for mysqltest_3@localhost
GRANT USAGE ON *.* TO 'mysqltest_3'@'localhost'
GRANT SELECT (b) ON `mysqltest_1`.`t2` TO 'mysqltest_3'@'localhost'
GRANT SELECT (c) ON `mysqltest_2`.`t1` TO 'mysqltest_3'@'localhost'
GRANT UPDATE (a) ON `mysqltest_1`.`t1` TO 'mysqltest_3'@'localhost'
GRANT UPDATE (d) ON `mysqltest_2`.`t2` TO 'mysqltest_3'@'localhost'
update mysqltest_1.t1, mysqltest_1.t2 set q=10 where b=1;
ERROR 42000: UPDATE command denied to user 'mysqltest_3@localhost' for column 'q' in table 't1'
update mysqltest_1.t1, mysqltest_2.t2 set d=20 where d=1;
ERROR 42000: SELECT command denied to user 'mysqltest_3@localhost' for column 'd' in table 't1'
update mysqltest_2.t1, mysqltest_1.t2 set c=20 where b=1;
ERROR 42000: UPDATE command denied to user 'mysqltest_3@localhost' for column 'c' in table 't1'
update mysqltest_2.t1, mysqltest_2.t2 set d=10 where s=2;
ERROR 42000: SELECT command denied to user 'mysqltest_3@localhost' for column 's' in table 't1'
update mysqltest_1.t1, mysqltest_2.t2 set a=10,d=10;
update mysqltest_1.t1, mysqltest_2.t1 set a=20 where c=20;
select t1.*,t2.* from mysqltest_1.t1,mysqltest_1.t2;
a q b r
10 2 1 2
select t1.*,t2.* from mysqltest_2.t1,mysqltest_2.t2;
c s d t
1 2 10 2
revoke all on mysqltest_1.t1 from mysqltest_3@localhost;
revoke all on mysqltest_1.t2 from mysqltest_3@localhost;
revoke all on mysqltest_2.t1 from mysqltest_3@localhost;
revoke all on mysqltest_2.t2 from mysqltest_3@localhost;
grant all on mysqltest_2.* to mysqltest_3@localhost;
grant select on *.* to mysqltest_3@localhost;
flush privileges;
use mysqltest_1;
update mysqltest_2.t1, mysqltest_2.t2 set c=500,d=600;
update mysqltest_1.t1, mysqltest_1.t2 set a=100,b=200;
ERROR 42000: UPDATE command denied to user 'mysqltest_3@localhost' for column 'a' in table 't1'
use mysqltest_2;
update mysqltest_1.t1, mysqltest_1.t2 set a=100,b=200;
ERROR 42000: Access denied for user 'mysqltest_3@localhost' to database 'mysqltest_1'
update mysqltest_2.t1, mysqltest_1.t2 set c=100,b=200;
ERROR 42000: Access denied for user 'mysqltest_3@localhost' to database 'mysqltest_1'
update mysqltest_1.t1, mysqltest_2.t2 set a=100,d=200;
ERROR 42000: Access denied for user 'mysqltest_3@localhost' to database 'mysqltest_1'
select t1.*,t2.* from mysqltest_1.t1,mysqltest_1.t2;
a q b r
10 2 1 2
select t1.*,t2.* from mysqltest_2.t1,mysqltest_2.t2;
c s d t
500 2 600 2
delete from mysql.user where user='mysqltest_3';
delete from mysql.db where user="mysqltest_3";
delete from mysql.tables_priv where user="mysqltest_3";
delete from mysql.columns_priv where user="mysqltest_3";
flush privileges;
drop database mysqltest_1;
drop database mysqltest_2;
mysql-test/t/grant.test
View file @ 02453262
......@@ -5,6 +5,8 @@
drop table if exists t1;
--enable_warnings
connect (master,localhost,root,,);
connection master;
SET NAMES binary;
#
......@@ -280,3 +282,73 @@ show grants for grant_user@localhost;
select Host,Db,User,Table_name,Column_name,Column_priv from mysql.columns_priv;
drop user grant_user@localhost;
drop table t1;
#
# Bug#7391: Cross-database multi-table UPDATE security problem
#
create database mysqltest_1;
create database mysqltest_2;
create table mysqltest_1.t1 select 1 a, 2 q;
create table mysqltest_1.t2 select 1 b, 2 r;
create table mysqltest_2.t1 select 1 c, 2 s;
create table mysqltest_2.t2 select 1 d, 2 t;
#test the column privileges
grant update (a) on mysqltest_1.t1 to mysqltest_3@localhost;
grant select (b) on mysqltest_1.t2 to mysqltest_3@localhost;
grant select (c) on mysqltest_2.t1 to mysqltest_3@localhost;
grant update (d) on mysqltest_2.t2 to mysqltest_3@localhost;
connect (conn1,localhost,mysqltest_3,,);
connection conn1;
show grants for mysqltest_3@localhost;
--error 1143
update mysqltest_1.t1, mysqltest_1.t2 set q=10 where b=1;
--error 1143
update mysqltest_1.t1, mysqltest_2.t2 set d=20 where d=1;
--error 1143
update mysqltest_2.t1, mysqltest_1.t2 set c=20 where b=1;
--error 1143
update mysqltest_2.t1, mysqltest_2.t2 set d=10 where s=2;
#the following two should work
update mysqltest_1.t1, mysqltest_2.t2 set a=10,d=10;
update mysqltest_1.t1, mysqltest_2.t1 set a=20 where c=20;
connection master;
select t1.*,t2.* from mysqltest_1.t1,mysqltest_1.t2;
select t1.*,t2.* from mysqltest_2.t1,mysqltest_2.t2;
revoke all on mysqltest_1.t1 from mysqltest_3@localhost;
revoke all on mysqltest_1.t2 from mysqltest_3@localhost;
revoke all on mysqltest_2.t1 from mysqltest_3@localhost;
revoke all on mysqltest_2.t2 from mysqltest_3@localhost;
#test the db/table level privileges
grant all on mysqltest_2.* to mysqltest_3@localhost;
grant select on *.* to mysqltest_3@localhost;
flush privileges;
disconnect conn1;
connect (conn2,localhost,mysqltest_3,,);
connection conn2;
use mysqltest_1;
update mysqltest_2.t1, mysqltest_2.t2 set c=500,d=600;
# the following failed before, should fail now.
--error 1143
update mysqltest_1.t1, mysqltest_1.t2 set a=100,b=200;
use mysqltest_2;
#the following used to succeed, it must fail now.
--error 1044
update mysqltest_1.t1, mysqltest_1.t2 set a=100,b=200;
--error 1044
update mysqltest_2.t1, mysqltest_1.t2 set c=100,b=200;
--error 1044
update mysqltest_1.t1, mysqltest_2.t2 set a=100,d=200;
#lets see the result
connection master;
select t1.*,t2.* from mysqltest_1.t1,mysqltest_1.t2;
select t1.*,t2.* from mysqltest_2.t1,mysqltest_2.t2;
delete from mysql.user where user='mysqltest_3';
delete from mysql.db where user="mysqltest_3";
delete from mysql.tables_priv where user="mysqltest_3";
delete from mysql.columns_priv where user="mysqltest_3";
flush privileges;
drop database mysqltest_1;
drop database mysqltest_2;
sql/sql_select.cc
View file @ 02453262
......@@ -6005,10 +6005,7 @@ join_read_system(JOIN_TAB *tab)
{
if (error != HA_ERR_END_OF_FILE)
return report_error(table, error);
if (tab->on_expr)
mark_as_null_row(tab->table);
else
table->null_row=1; // Why do this for inner join?
mark_as_null_row(tab->table);
empty_record(table); // Make empty record
return -1;
}
......@@ -6038,10 +6035,7 @@ join_read_const(JOIN_TAB *tab)
}
if (error)
{
if (tab->on_expr)
mark_as_null_row(tab->table);
else
table->null_row=1;
mark_as_null_row(tab->table);
empty_record(table);
if (error != HA_ERR_KEY_NOT_FOUND)
return report_error(table, error);
......
sql/sql_update.cc
View file @ 02453262
......@@ -553,7 +553,9 @@ int mysql_multi_update(THD *thd,
*/
for (tl= update_list; tl; tl= tl->next)
{
TABLE_LIST *save= tl->next;
TABLE *table= tl->table;
uint wants;
/* if table will be updated then check that it is unique */
if (table->map & update_tables)
{
......@@ -571,17 +573,31 @@ int mysql_multi_update(THD *thd,
DBUG_PRINT("info",("setting table `%s` for update", tl->alias));
tl->lock_type= thd->lex->multi_lock_option;
tl->updating= 1;
wants= UPDATE_ACL;
}
else
{
DBUG_PRINT("info",("setting table `%s` for read-only", tl->alias));
tl->lock_type= TL_READ;
tl->updating= 0;
wants= SELECT_ACL;
}
if (tl->derived)
derived_tables|= table->map;
else if (!using_lock_tables)
tl->table->reginfo.lock_type= tl->lock_type;
else
{
tl->next= 0;
if (!using_lock_tables)
tl->table->reginfo.lock_type= tl->lock_type;
if (check_access(thd, wants, tl->db, &tl->grant.privilege, 0, 0) ||
(grant_option && check_grant(thd, wants, tl, 0, 0, 0)))
{
tl->next= save;
DBUG_RETURN(0);
}
tl->next= save;
}
}
if (thd->lex->derived_tables && (update_tables & derived_tables))
......
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