#49338 [NEW]: when fopen is used without the second parameter, php segfaults in apache 2.2

From: ttessier at swhistlesoft dot com Operating system: solaris 10 PHP version: 5.2.10 PHP Bug Type: Filesystem function related Bug description: when fopen is used without the second parameter, php segfaults in apache 2.2 Description: ------------ When fopen is used without the second parameter, php segfaults in apache 2.2. I had this happen two times, once when I was using bcompiler and once when I was using xml_parser. I thought that the issue was the other modules until I realized that I was missing the second parameter to fopen. I was doing a test on the returned value to check for validity such as if ( $fh ) or if ( is_resource ( $fh ) ) and was unable to see any warnings. Once I removed the test and any interior blocks to the filehandle test from the code, I was able to see a warning. I fixed the issue and have been working solid since. Reproduce code: --------------- $regionf = 'regions.xml' ; $fregions = fopen ( $regionf ) ; if ( $fregions ){ echo "File Opened" ; $xmldoc = fread ( $fregions, filesize ( $regionf ) ) ; $parser = xml_parser_create ( ) ; if ( $parser ){ xml_parser_set_option($parser,XML_OPTION_TARGET_ENCODING, "UTF-8"); xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,1); xml_parse ( $parser, $doc ) ; xml_parse_into_struct($parser, trim($xmldoc), $xml_values); print_r ( $xml_values ) ; xml_parser_free ( $parser ) ; } fclose ( $fregions ) ; } Expected result: ---------------- apache segfault - browser displays previous content ( cache ) -- Edit bug report at http://bugs.php.net/?id=49338&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49338&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49338&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49338&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49338&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49338&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49338&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49338&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49338&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49338&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49338&r=support Expected behavior: http://bugs.php.net/fix.php?id=49338&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49338&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49338&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49338&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49338&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49338&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49338&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49338&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49338&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49338&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49338&r=mysqlcfg