Bug #62475 [NEW]: variant_* functions causes crash when null given as an argument
From: deadb17ch at gmail dot com
Operating system: Windows XP SP3
PHP version: 5.4.4
Package: COM related
Bug Type: Bug
Bug description:variant_* functions causes crash when null given as an argument
Description:
------------
As we can read in the php manual :
"As with all the variant arithmetic functions, the parameters for this
function
can be either a PHP native type (integer, string, floating point, boolean
or
NULL), or an instance of a COM, VARIANT or DOTNET class. ...."
but actuall php instance crashes when we give NULL as first or second
argument
to some of the functions from variant_* familly.
Thoes functions are:
variant_neg
variant_pow
variant_cat
variant_div
variant_fix
variant_idiv
variant_imp
variant_int
variant_mod
variant_mul
variant_neg
variant_not
variant_rount
variant_set
variant_sub
variant_xor
variant_or
variant_eqv
variant_cmp
variant_abs
variant_and
Test script:
---------------
<?php variant_pow(null, 1); ?>
<?php variant_neg(null); ?>
Expected result:
----------------
nothing happens or an error occurs
Actual result:
--------------
crash
eax=00000000 ebx=01250080 ecx=00c0fac8 edx=1039bac6 esi=00000000
edi=00c0fac8
eip=100f4036 esp=00c0fa90 ebp=02296f08 iopl=0 nv up ei pl zr na pe
nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000
efl=00200246
*** ERROR: Symbol file could not be found. Defaulted to export symbols for
C:\\xampp\\php\\php5ts.dll -
php5ts!php_com_variant_from_zval+0x6:
100f4036 0fb6460c movzx eax,byte ptr [esi+0Ch]
ds:0023:0000000c=??
--
Edit bug report at https://bugs.php.net/bug.php?id=62475&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62475&r=trysnapshot54
Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62475&r=trysnapshot53
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62475&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=62475&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62475&r=needdocs
Fixed in release: https://bugs.php.net/fix.php?id=62475&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=62475&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=62475&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=62475&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=62475&r=support
Expected behavior: https://bugs.php.net/fix.php?id=62475&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=62475&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=62475&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=62475&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62475&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62475&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=62475&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=62475&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=62475&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=62475&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=62475&r=mysqlcfg
Thread (3 messages)
- deadb17ch at gmail dot com