ID: 31447 User updated by: phpbug at ebt dot cjb dot net Reported By: phpbug at ebt dot cjb dot net -Status: Feedback +Status: Open Bug Type: DOM XML related Operating System: Red Hat Linux 7.3 -PHP Version: 4CVS-2004-01-07 +PHP Version: 4.3.10 New Comment:
My libxml2 is version 2.6.16 I have also realized that the problem is not just entities, it's with any XML error at all. If I incorrectly leave a tag open or a quote or anything that makes DOMXML display an error, PHP segfaults and the backtrace shows the error that should have been displayed. Previous Comments: ------------------------------------------------------------------------ [2005-01-08 12:58:00] [EMAIL PROTECTED] I can not reproduce this. What libxml2 version do you have installed..? ------------------------------------------------------------------------ [2005-01-07 23:48:08] phpbug at ebt dot cjb dot net Same result with the latest snapshot. ------------------------------------------------------------------------ [2005-01-07 23:31:58] [EMAIL PROTECTED] 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 ------------------------------------------------------------------------ [2005-01-07 23:24:47] phpbug at ebt dot cjb dot net Forgot: I believe the expected result should mention an error with the entity, not simply return without an error. However, gracefully displaying an error is better than a segfault. ------------------------------------------------------------------------ [2005-01-07 23:21:51] phpbug at ebt dot cjb dot net Description: ------------ When the domxml_open_file function is called on a file that contains invalid entity (like &asdf;), PHP segfaults. Replacing the invalid entity with a valid one (like &) does not cause a segfault. I'm using the DOMXML extension included with the PHP source (./configure --with-dom) Reproduce code: --------------- test.xml: <?xml version="1.0" ?> <roottag> <test testvalue="tom, dick &asdf; harry" /> </roottag> test.php: <?php $dom = domxml_open_file("test.xml"); ?> Expected result: ---------------- Run the test.php file; PHP should return without an error: # php test.php # Actual result: -------------- # php test.php Segmentation fault # According to gdb: # gdb php (gdb) run test.php Starting program: /usr/local/bin/php test.php Program received signal SIGSEGV, Segmentation fault. 0x08208fe5 in add_next_index_zval (arg=0x3, value=0x840526c) at /root/installs/php-4.3.10/Zend/zend_API.c:851 851 return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &value, sizeof(zval *), NULL); (gdb) bt #0 0x08208fe5 in add_next_index_zval (arg=0x3, value=0x840526c) at /root/installs/php-4.3.10/Zend/zend_API.c:851 #1 0x080906c4 in domxml_error_ext (ctx=0x83f6fd0, msg=0x405f6fdb "%s") at /root/installs/php-4.3.10/ext/domxml/php_domxml.c:1460 #2 0x40546d9d in __xmlRaiseError (schannel=0, channel=0x809047c <domxml_error_ext>, data=0x83f6fd0, ctx=0x83f6fd0, nod=0x0, domain=1, code=26, level=XML_ERR_FATAL, file=0x83ee6a8 "test.xml", line=3, str1=0x8404c92 "asdf", str2=0x0, str3=0x0, int1=0, int2=0, msg=0x405e9bee "Entity '%s' not defined\n") at error.c:610 #3 0x4054a3fb in xmlFatalErrMsgStr (ctxt=0x83f6fd0, error=XML_ERR_UNDECLARED_ENTITY, msg=0x405e9bee "Entity '%s' not defined\n", val=0x8404c92 "asdf") at parser.c:523 #4 0x40553b4e in xmlParseEntityRef__internal_alias (ctxt=0x83f6fd0) at parser.c:5873 #5 0x4054de47 in xmlParseAttValueComplex (ctxt=0x83f6fd0, attlen=0xbfffbe60, normalize=0) at parser.c:2859 #6 0x405557ac in xmlParseAttribute2 (ctxt=0x83f6fd0, pref=0x0, elem=0x8404c83 "test", prefix=0xbfffbe58, value=0xbfffbe5c, len=0xbfffbe60, alloc=0xbfffbe64) at parser.c:7259 #7 0x40555ac5 in xmlParseStartTag2 (ctxt=0x83f6fd0, pref=0xbfffbea4, URI=0xbfffbea8, tlen=0xbfffbeac) at parser.c:7388 #8 0x40556e51 in xmlParseElement__internal_alias (ctxt=0x83f6fd0) at parser.c:7981 #9 0x40556cf2 in xmlParseContent__internal_alias (ctxt=0x83f6fd0) at parser.c:7905 #10 0x40557091 in xmlParseElement__internal_alias (ctxt=0x83f6fd0) at parser.c:8065 #11 0x405582cb in xmlParseDocument__internal_alias (ctxt=0x83f6fd0) at parser.c:8666 #12 0x080996f9 in domxml_document_parser (mode=0, loadtype=1, source=0x83f2524 "test.xml", data=0x0) at /root/installs/php-4.3.10/ext/domxml/php_domxml.c:4003 #13 0x08099a73 in zif_xmldocfile (ht=1, return_value=0x83ee644, this_ptr=0x0, return_value_used=1) at /root/installs/php-4.3.10/ext/domxml/php_domxml.c:4073 #14 0x0821b2ab in execute (op_array=0x83f2cbc) at /root/installs/php-4.3.10/Zend/zend_execute.c:1642 #15 0x08206b20 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /root/installs/php-4.3.10/Zend/zend.c:900 #16 0x081cc682 in php_execute_script (primary_file=0xbfffe560) at /root/installs/php-4.3.10/main/main.c:1736 #17 0x08221c5a in main (argc=2, argv=0xbfffe604) at /root/installs/php-4.3.10/sapi/cli/php_cli.c:822 #18 0x406425d9 in __libc_start_main () from /lib/libc.so.6 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31447&edit=1
