#49040 [Com]: GPF when passing non-absolute file name

ID: 49040 Comment by: sant9442 at gmail dot com Reported By: sant9442 at gmail dot com Status: Feedback Bug Type: CGI related Operating System: Windows XP PHP Version: 5.3.0 New Comment: With this 5.3.1-dev binaries, source and debug symbols installed and running: G:\files\php>cd php-5.3.1-dev-Win32 G:\files\php\php-5.3.1-dev-Win32>php-cgi foobar\foobar.php the JIT debugger shows the same fault source location in sapi\cgi\cgi-main.c location with the path pointer of 0x0000000. A NULL check should be done here, but the odds are very good that the massive 5.3 changes in the filename parsing is the origin of the problem. I say that because bug #49039 was the original problem found and in the midst of resolving why that was happening by trying relative paths, this GPF was discovered. So I might suggest both these bugs be lumped together because the odds are good resolved #bug 49039 will resolve this one as well. However, adding a NULL check here probably is not a bad idea. Previous Comments: ------------------------------------------------------------------------ [2009-07-23 19:27:45] jani@php.net Please try using this snapshot: http://snaps.php.net/php5.3-latest.tar.gz For Windows: http://windows.php.net/snapshots/ ------------------------------------------------------------------------ [2009-07-23 19:25:00] sant9442 at gmail dot com Description: ------------ A GPF was observed in line #737 in sapi\cgi\cgi_main.c: if (!IS_ABSOLUTE_PATH(path, path_len)) { real_path = tsrm_realpath(path, NULL TSRMLS_CC); fault-> real_path_len = strlen(real_path); path = real_path; path_len = real_path_len; } Reproduce code: --------------- 1) Install PHP 5.3 for win32 (VC6) version (I have not tried the VC9 version). 2) Switch to the folder and type: C:\PHP-5.3.0.WIN32 php-cgi.exe FOOBAR\FOOBAR.PHP It doesn't matter if FOOBAR folder exist or not. Under Windows XP, with Visual Studio installed, the JIT debugger appears. With the debug symbols avaiable, it shows the error location. NOTE: I can not repeat this under Windows 2000, which tells me it is a RANDOM memory bug. Whatever the pointer has in memory. Expected result: ---------------- A "No Input File Specified" (NO GPF) Actual result: -------------- Under Windows XP, with Visual Studio installed, the JIT debugger appears. With the debug symbols avaiable, it shows the error location. NOTE: I can not repeat this under Windows 2000, which tells me it is a RANDOM memory bug. Whatever the pointer has in memory. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=49040&edit=1