From: [EMAIL PROTECTED]
Operating system: Linux/Apache (Debian 3.0r1)
PHP version: 4.3.0
PHP Bug Type: Reproducible crash
Bug description: Accessing $_SERVER['PATH_INFO '] causes intermittent segfault in
Apache
If the special global $_SERVER['PATH_INFO'] is accessed in scripts on
either my test or production server when it is not set (on load of home
page usually) it causes Apache to segfault intermittently (like 1/100 page
views...).
eg, this is what caused me grief:
if( $_SERVER['PATH_INFO'] == 'whatever')
include( 'whatever_else');
Wrapping in call to 'isset' stopped crashes:
if( isset($_SERVER['PATH_INFO']) )
if( $_SERVER['PATH_INFO'] == 'whatever')
include( 'whatever_else');
Was really hard to reproduce. In the end I sat at a split screen
comparing the error to the access log, second by second. The error log
was reporting ~100-300 segfaults a day untill I used the call to isset,
when that dropped to zero. (After a fun 6 hours trying to catch it with
gdb...)
--
Edit bug report at http://bugs.php.net/?id=21756&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=21756&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=21756&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=21756&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=21756&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=21756&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=21756&r=support
Expected behavior: http://bugs.php.net/fix.php?id=21756&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=21756&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=21756&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=21756&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=21756&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=21756&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=21756&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=21756&r=gnused
