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Bug #5817 PHP Core Dumps when pg_errormessage() is called.
Submitted: 2000-07-27 16:39 UTC Modified: 2000-07-31 11:14 UTC
From: ac001 at figment dot net Assigned:
Status: Closed Package: PostgreSQL related
PHP Version: 4.0.1pl2 OS: Solaris 8
Private report: No CVE-ID: None
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 [2000-07-27 16:39 UTC] ac001 at figment dot net 
The PostgreSQL version is: 7.0.2

My current configuration is a follow:
'./configure' '--with-pgsql=/usr/local/pgsql' '--bindir=/usr/local/apache/cgi-bin'
                                   '--with-dbase=yes' '--enable-force-cgi-redirect=yes' '--enable-ftp=yes'
                                   '--with-mysql=no' '--with-gd=no' '--with-imap=/usr/local'

By writing a file with only a single line such as <? pg_errormessage(); ?> and running php-4.0.1pl2 on it, php immediately returns a Sementation Fault and core dumps.

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 [2000-07-27 20:48 UTC] ac001 at figment dot net 
I have narrowed the crash down to the zend_fetch_resource() function within the zend_list.c file.  It appears to crash as soon as it hits the:
 
    if (!passed_id) {

...line.  I am suspecting that it is really crashing on the line:

     } else if ((*passed_id)->type != IS_RESOURCE) {

...because the passed_id referenced memory location is not valid for some reason.  I am not able to narrow it down any further as I am not familiar with the use of gdb and do not have it installed on this system.  (I guess I have been spoiled by MS.)
 [2000-07-29 08:12 UTC] jah@php.net 
Fixed in CVS. (I'm really wondering why you are doing something as
stupid as calling a function that needs an open connection to
PostgreSQL server, but at least it helps to catch those places
where a variable could be used uninitialized...)
 [2000-07-31 11:14 UTC] ac001 at figment dot net 
Dear Jah,

      A package called phpPgAdmin uses this function.  How else would you recommend the accessing of PostgreSQL data if we did not use "something as stupid as calling a function that needs an open connection to PostgreSQL server"?

Sincerely,

Albert.


You wrote:
> ID: 5817
> Updated by: jah
> Reported By: ac001@figment.net
> Status: Closed
> Bug Type: PostgreSQL related
> Assigned To: 
> Comments:
> 
> Fixed in CVS. (I'm really wondering why you are doing something as
> stupid as calling a function that needs an open connection to
> PostgreSQL server, but at least it helps to catch those places
> where a variable could be used uninitialized...)
> 
> Full Bug description available at: http://bugs.php.net/?id=5817
> 
>
 
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