#48592 [Opn]: Missing environment variables in CGI SAPI crashes on startup

ID: 48592 Updated by: gwynne@php.net Reported By: gwynne@php.net Status: Open Bug Type: Reproducible crash Operating System: Darwin9 (MacOS X 10.5) PHP Version: 5.3CVS-2009-06-18 (CVS) New Comment: PHP config: phpinfo() PHP Version => 5.3.0RC4-dev System => Darwin hostname 9.7.0 Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386 i386 Build Date => Jun 14 2009 17:53:14 Configure Command => 'cvs/php-5.3/configure' '--prefix=/opt/php-5.3.0RC4-dev' '--disable-all' '--enable-cli' '--enable-cgi' '--enable-debug' '--enable-maintainer-zts' '--disable-short-tags' '--enable-posix' '--enable-session' '--with-zlib' '--with-pcre-regex=/sw/pcre' '--with-openssl=/sw/openssl' '--enable-xml' '--enable-libxml' '--with-libxml-dir=/sw/libxml2' '--with-iconv=/sw/libiconv' '--enable-filter' '--enable-ctype' '--enable-pdo' '--enable-sqlite-utf8' '--enable-dom' '--enable-hash' '--enable-tokenizer' '--disable-safe-mode' '--without-pear' '--with-bz2' '--enable-calendar' '--enable-pcntl' '--with-pdo-sqlite=/sw/sqlite' '--with-icu-dir=/sw/icu' '--with-ldap=/usr' '--with-ldap-sasl=/usr' '--enable-xmlreader' '--enable-xmlwriter' '--enable-zip' '--enable-ftp' '--with-gd' '--with-jpeg-dir=/usr' '--with-png-dir=/sw/libpng' '--enable-gd-native-ttf' '--with-imap=/sw/imap' '--with-imap-ssl=/sw/openssl' '--with-kerberos=/usr' '--with-mysql=/sw/mysql' '--with-pdo-mysql=/sw/mysql' '--with-mysqli=/sw/mysql/bin/mysql_config' '--with-xsl=/sw/libxslt' '--enable-simplexml' '--enable-json' '--enable-bcmath' '--enable-phar' '--enable-shmop' '--enable-sockets' '--with-sqlite' '--with-sqlite3=/sw/sqlite' '--with-pdo-sqlite=/sw/sqlite' Server API => Command Line Interface Virtual Directory Support => enabled Configuration File (php.ini) Path => /opt/php-5.3.0RC4-dev/lib Loaded Configuration File => /opt/php-5.3.0RC4-dev/lib/php.ini Scan this dir for additional .ini files => (none) Additional .ini files parsed => (none) PHP API => 20041225 PHP Extension => 20090115 Zend Extension => 220090115 Zend Extension Build => API220090115,TS,debug PHP Extension Build => API20090115,TS,debug Debug Build => yes Thread Safety => enabled Zend Memory Manager => enabled Zend Multibyte Support => disabled IPv6 Support => enabled Registered PHP Streams => https, ftps, compress.zlib, compress.bzip2, php, file, glob, data, http, ftp, phar, zip Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, sslv3, sslv2, tls Registered Stream Filters => zlib.*, bzip2.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk This program makes use of the Zend Scripting Language Engine: Zend Engine v2.3.0, Copyright (c) 1998-2009 Zend Technologies Previous Comments: ------------------------------------------------------------------------ [2009-06-18 05:29:06] gwynne@php.net Description: ------------ If certain environment variables are missing, with others present, when the CGI SAPI is called, it will crash early on with a NULL pointer dereference. Reproduce code: --------------- bash$ SERVER_NAME=anything SERVER_PORT=80 REDIRECT_STATUS=200 php-cgi Expected result: ---------------- <a message about no input file, or waiting for input on STDIN> Actual result: -------------- Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 0x90be0f30 in strlen () (gdb) bt #0 0x90be0f30 in strlen () #1 0x00323dd3 in php_fopen_primary_script (file_handle=0xbfffea6c, tsrm_ls=0xf01a80) at cvs/php-5.3/main/fopen_wrappers.c:454 #2 0x0049bcb2 in main (argc=1, argv=0xbfffeb58) at cvs/php-5.3/sapi/cgi/cgi_main.c:1999 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=48592&edit=1