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Bug#26285 selecting information_schema crahes server

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The crash happens when 'skip-grant-tables' is enabled.
We skip the filling of I_S privilege tables 
if acl_cache is not initialized.
This commit is contained in:
gluh@mysql.com/eagle.(none)
2007-03-16 12:15:51 +04:00
parent 3d0df38f49
commit ec4f730ba7
3 changed files with 24 additions and 0 deletions
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12
mysql-test/r/skip_grants.result
View File

@ -58,3 +58,15 @@ DROP PROCEDURE p3;
DROP FUNCTION f1;
DROP FUNCTION f2;
DROP FUNCTION f3;
select count(*) from information_schema.COLUMN_PRIVILEGES;
count(*)
0
select count(*) from information_schema.SCHEMA_PRIVILEGES;
count(*)
0
select count(*) from information_schema.TABLE_PRIVILEGES;
count(*)
0
select count(*) from information_schema.USER_PRIVILEGES;
count(*)
0

8
mysql-test/t/skip_grants.test
View File

@ -108,3 +108,11 @@ DROP PROCEDURE p3;
DROP FUNCTION f1;
DROP FUNCTION f2;
DROP FUNCTION f3;
#
# Bug#26285 Selecting information_schema crahes server
#
select count(*) from information_schema.COLUMN_PRIVILEGES;
select count(*) from information_schema.SCHEMA_PRIVILEGES;
select count(*) from information_schema.TABLE_PRIVILEGES;
select count(*) from information_schema.USER_PRIVILEGES;

4
sql/sql_acl.cc
View File

@ -5882,6 +5882,8 @@ int fill_schema_user_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
char *curr_host= thd->security_ctx->priv_host_name();
DBUG_ENTER("fill_schema_user_privileges");
if (!initialized)
DBUG_RETURN(0);
pthread_mutex_lock(&acl_cache->lock);
for (counter=0 ; counter < acl_users.elements ; counter++)
@ -5941,6 +5943,8 @@ int fill_schema_schema_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
char *curr_host= thd->security_ctx->priv_host_name();
DBUG_ENTER("fill_schema_schema_privileges");
if (!initialized)
DBUG_RETURN(0);
pthread_mutex_lock(&acl_cache->lock);
for (counter=0 ; counter < acl_dbs.elements ; counter++)