From: reprovol at microsoft dot com
Operating system: Windows Vista/LH Server
PHP version: 5.2.3
PHP Bug Type: Reproducible crash
Bug description: php5ts crash on double free
Description:
------------
Crash Bucket: 421917130
szAppName w3wp.exe
szAppVer 7.0.6001.16510
szModName StackHash_80ba
szModVer 6.0.6001.16510
Offset 000a773f
Exception Code c0000374
Application Stamp 462598ef
Module Stamp 4625a0ae
0:014> !heap
**************************************************************
* *
* HEAP ERROR DETECTED *
* *
**************************************************************
Details:
Error address: 02ebc1d8
Heap handle: 00850000
Error type heap_failure_block_not_busy (8)
Stack trace:
77ad01f8: ntdll!RtlFreeHeap+0x00000060
75f22a89: kernel32!HeapFree+0x00000014
76659fbb: msvcrt!free+0x000000cd
025a9cfe: php5ts+0x00099cfe
77ac631c: ntdll!zzz_AsmCodeRange_End
77ab42bd: ntdll!LdrpUnloadDll+0x000003d4
77aafeff: ntdll!LdrUnloadDll+0x00000046
75eb2563: kernel32!FreeLibrary+0x00000076
748ecaa0: isapi!ISAPI_DLL::Unload+0x00000038
<snip>
0:014> lmvmphp5ts
start end module name
02510000 029e7000 php5ts T (no symbols)
Loaded symbol image file: php5ts.dll
Image path: php5ts.dll
Image name: php5ts.dll
Timestamp: Thu May 31 06:37:03 2007 (465ECF7F)
CheckSum: 00000000
ImageSize: 004D7000
File version: 5.2.3.3
Product version: 5.2.3.0
File flags: 0 (Mask 3F)
File OS: 4 Unknown Win32
File type: 2.0 Dll
File date: 00000000.00000000
Translations: 0000.04b0 0000.04e0 0409.04b0 0409.04e0
Sorry
0:014> u 025a9cfe
php5ts+0x99cfe:
025a9cfe ?? ???
Actual result:
--------------
77ad01f8: ntdll!RtlFreeHeap+0x00000060
75f22a89: kernel32!HeapFree+0x00000014
76659fbb: msvcrt!free+0x000000cd
025a9cfe: php5ts+0x00099cfe
77ac631c: ntdll!zzz_AsmCodeRange_End
77ab42bd: ntdll!LdrpUnloadDll+0x000003d4
77aafeff: ntdll!LdrUnloadDll+0x00000046
75eb2563: kernel32!FreeLibrary+0x00000076
748ecaa0: isapi!ISAPI_DLL::Unload+0x00000038
--
Edit bug report at http://bugs.php.net/?id=42401&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42401&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42401&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42401&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42401&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42401&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42401&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42401&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42401&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42401&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42401&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42401&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42401&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42401&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42401&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42401&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42401&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42401&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42401&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42401&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42401&r=mysqlcfg
