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Bug #22786 Crash when trying to call DomAttribute's set_namespace method
Submitted: 2003-03-19 05:45 UTC Modified: 2003-03-20 03:50 UTC
From: ed at avi dot ru Assigned: chregu (profile)
Status: Closed Package: DOM XML related
PHP Version: 4.3.2RC OS: any
Private report: No CVE-ID: None
 [2003-03-19 05:45 UTC] ed at avi dot ru
The following code works correctly:


	$doc = domxml_new_doc ('1.0');
	$root = $doc->append_child ($doc->create_element ('root'));

	$root->set_attribute ('attr', 'value');

	$attr = $root->get_attribute_node ('attr');
	$root->set_attribute ('attr-class', get_class ($attr));	print ($doc->dump_mem ());


The output is the following:

<?xml version="1.0" ?>
<root attr="value" attr-class="domattribute" />

It proves that $attr contains an object of type DomAttribute. But if we insert the following line:

	$attr->set_namespace ('urn:test:test');

the PHP crashes. Apache (1.3.26 with PHP as module) showes the following data (the output is translated from Russian):

Program APACHE failed when accessing memory page in module PHP_DOMXML.DLL on address 015f:01311685.
EAX=00000031 CS=015f EIP=01311685 EFLGS=00010202
EBX=00844f70 SS=0167 ESP=035ff5d8 EBP=055f3f60
ECX=05495894 DS=0167 ESI=00000031 FS=8caf
EDX=035ff575 ES=0167 EDI=055f2110 GS=0000
Bytes on address CS:EIP:
8a 16 8a 01 46 3a d0 75 0c 41 84 c0 75 f2 b8 01 
Stack contents:
05495894 012fc05e 00000031 05495894 00844f70 055f3f60 035ffb88 00844f70 012f6198 055f3fa0 055f3f60 05495894 00000000 05495030 00000000 00000017 


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 [2003-03-19 10:43 UTC]
Backtrace with 4.3.2-RC:

(gdb) bt
#0  0x41e469b6 in xmlSearchNsByHref () from /usr/lib/
#1  0x80e2454 in zif_domxml_node_set_namespace (ht=1, return_value=0x875593c, this_ptr=0x8754d34, return_value_used=0)
    at /usr/src/web/php/php4/ext/domxml/php_domxml.c:3342
#2  0x82cb4e2 in execute (op_array=0x8754064) at /usr/src/web/php/php4/Zend/zend_execute.c:1606
#3  0x82b8024 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/src/web/php/php4/Zend/zend.c:864
#4  0x827be87 in php_execute_script (primary_file=0xbffff8dc) at /usr/src/web/php/php4/main/main.c:1636
#5  0x82df177 in main (argc=2, argv=0xbffff944) at /usr/src/web/php/php4/sapi/cli/php_cli.c:753
#6  0x41edc9cb in __libc_start_main (main=0x82de554 <main>, argc=2, argv=0xbffff944, init=0x80ad77c <_init>, 
    fini=0x8469468 <_fini>, rtld_fini=0x4000aea0 <_dl_fini>, stack_end=0xbffff93c)
    at ../sysdeps/generic/libc-start.c:92

 [2003-03-20 01:14 UTC]
I'm investigating..

 [2003-03-20 03:50 UTC]
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at
In case this was a documentation problem, the fix will show up soon at

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up on the site and on the mirror sites in short time.
Thank you for the report, and for helping us make PHP better.

And fixed in stable branch PHP_4_3
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Last updated: Wed Oct 04 16:01:26 2023 UTC