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Bug #36287 Segfault with SplFileInfo conversion
Submitted: 2006-02-04 17:42 UTC Modified: 2006-02-05 13:03 UTC
From: meeb at meeb dot org Assigned: helly (profile)
Status: Closed Package: Filesystem function related
PHP Version: 5.1.2 OS: *
Private report: No CVE-ID: None
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From: meeb at meeb dot org
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 [2006-02-04 17:42 UTC] meeb at meeb dot org 
Description:
------------
When accidently comparing a the iterator created by RecursiveDirectoryIterator against a string PHP segfaulted. This is new to 5.1.2 (worked under 5.1.1 and I was unaware of the issue with my code). There are obvious workarounds for this so no major panic.

Removing the 'if':

if($file!="."&&$file!="..")

stops the segfault.

Unfortunately I only have EMT64/Debian64 servers available so I am unable to test this for cross-platform compatibility, and I was unable to find any exact matching bugs (closest were a few stack corruptions).

This occurs when the script is executed on the command line and via apache2. I have saved straces should they be requested.

Reproduce code:
---------------
$this->dir = new RecursiveIteratorIterator(new RecursiveDirectoryIterator("."),true);
foreach($this->dir as $file){
  // works...
  echo $file->getPathName()."\n";
  // segfauls...
  if($file!="."&&$file!="..") echo $file->getPathName()."\n";
}


Expected result:
----------------
./dir/
./dir/file1.ext
./dir/file2.ext
....

Actual result:
--------------
Segmentation Fault.

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 [2006-02-04 17:45 UTC] meeb at meeb dot org 
s/iterator/object/

whoops :p
 [2006-02-04 18:44 UTC] tony2001@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5.1-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.1-win32-latest.zip
 [2006-02-05 12:44 UTC] helly@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 
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