#20190 [Com]: Random mem corruption: zend_get_executed_filename() mismatch

ID: 20190 Comment by: mbr@freebsd.org Reported By: mbr@freebsd.org Status: Feedback Bug Type: Apache related Operating System: FreeBSD PHP Version: 4.2.3 New Comment: I already use this snapshot. And it still happens. I'll post soon more info. I'm compiling now a debug version. Martin Previous Comments: ------------------------------------------------------------------------ [2002-10-31 09:23:36] iliaa@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-latest.zip ------------------------------------------------------------------------ [2002-10-31 09:01:33] mbr@freebsd.org Note that this bug is similar to a other bug, http://bugs.php.net/bug.php?id=19292 It's not the same bug. There were some checks wrong in fopen_wrappers.c. This is fixed in cvs. This bug does show similar results as 19292, but the source of the problem is completly different. This a webserver with ~400 virtual servers, ~100 have php enabled. I see the bug happen if I access frequently pages of customer 1 (php enabled) and at the same time customer 2. ------------------------------------------------------------------------ [2002-10-31 08:55:47] mbr@freebsd.org I've done this change in main/fopen_wrappers.c to see what happens: - php_error(E_WARNING, "open_basedir restriction - in effect. File is in wrong directory"); + php_error(E_WARNING, "open_basedir: File should + be in %s, but is in %s file (%s)", + pathbuf, path, + zend_get_executed_filename(TSRMLS_C)); let's say pathbuf=$a, path=$b, zend_get_executed_filename=$c As you see $a (which is PG(open_basedir)), should be identical to the path without added filename of both $b and $c. The error is random. Sometimes $a and $c are correct, and $b is plain wrong (from a previous request). Sometimes $a and $c are correct, and $b is wrong. [24-Oct-2002 10:49:19] PHP Warning: open_basedir: File should be in /www/doc/www.aaa.ch-80, but is in /www/doc/ www.bbb.ch-80/html/visions/php/include/globals.inc in /www/doc/www.aaa.ch-80/index.php on line 2 [24-Oct-2002 10:49:19] PHP Warning: open_basedir: File should be in /www/doc/www.aaa.ch-80, but is in /www/doc/ www.bbb.ch-80/html/visions/php//wrapper.php in /www/doc/www.aaa.ch-80/index.php on line 6 [24-Oct-2002 10:53:45] PHP Warning: open_basedir: File should be in /www/doc/www.aaa.ch-80, but is in /www/doc/ www.bbb.ch-80/html/visions/php//include/globals.inc in /www/doc/www.aaa.ch-80/index.php on line 2 [24-Oct-2002 10:53:45] PHP Warning: open_basedir: File should be in /www/doc/www.aaa.ch-80, but is in /www/doc/ www.bbb.ch-80/html/visions/php//wrapper.php in /www/doc/www.aaa.ch-80/index.php on line 6 This bug is critical and not fixed in cvs. I just tried the newest snapshot and it's not fixed. Martin ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=20190&edit=1