#25109 [Opn->Fbk]: pgsql causes segmentation fault

ID: 25109 Updated by: iliaa@php.net Reported By: cunha17 at uol dot com dot br -Status: Open +Status: Feedback Bug Type: PostgreSQL related Operating System: Redhat Linux 9.0 - Kernel 2.4.21 PHP Version: 4CVS-2003-08-20 New Comment: Could you please generate a backtrace of the crash and supply the query you've run to trigger it. Previous Comments: ------------------------------------------------------------------------ [2003-08-20 18:30:25] cunha17 at uol dot com dot br The same problem happened with the latest PHP: PHP4-STABLE-200308202130 ------------------------------------------------------------------------ [2003-08-16 11:50:51] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip ------------------------------------------------------------------------ [2003-08-16 11:47:12] cunha17 at uol dot com dot br Description: ------------ I found out that pgsql functions cause segmentation fault if the connection user has no read access on pg_ system tables. I'm using John Lim's ADOdb class to access a PostgreSQL 7.2.4 database. This problem has nothing to do with apache since it happens with the CLI interface too. Reproduce code: --------------- With an empty postgresql installation, I created an empty database, connected to it, created an user and set all privileges on this new database to this user. Connected as the new user on the new database I created some tables. When trying to access this new tables with PHP and ADOdb classes, I got a segmentation fault. At the very end, when running with strace, I got a message before the segmentation fault saying: 'pg_class access denied' When I grant read access on this table to the new user, I got: 'pg_attribute access denied' and so on... When I grant read access to all pg_* tables, the problem disappear and PHP runs ok. Expected result: ---------------- PgSQL Error: Access denied to pg_* system table or something like that. Actual result: -------------- Segmentation Fault if the connection user has no read access on system tables ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=25109&edit=1