PHP crashes trying to assign into property of dide object

Bug #37144	PHP crashes trying to assign into property of dide object
Submitted:	2006-04-20 08:30 UTC	Modified:	2006-07-19 14:05 UTC
From:	dmitry@php.net	Assigned:	dmitry (profile)
Status:	Closed	Package:	Scripting Engine problem
PHP Version:	5.1.2	OS:	*
Private report:	No	CVE-ID:	None

[2006-04-20 08:30 UTC] dmitry@php.net

Description:
------------
PHP removes a temorary object then tryes to assign into its property. As a result we have SIGSEGV.

Reproduce code:
---------------
<?php
function foo() {
  $x = new stdClass();
  $x->bar = array(1);
  return $x;
}
foo()->bar[1] = "123";
echo "ok\n";
?>

Expected result:
----------------
ok

Actual result:
--------------
crash and/or memory leaks

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[2006-04-20 13:09 UTC] smlerman at gmail dot com

I don't get a segfault on Windows 5.1.1, Linux 5.1.1 (compiled on Ubuntu), or Linux 5.1.2 (compiled on Fedora).

As a side note, should that even be valid syntax? Shouldn't the left side of assignment only allow variables (other than the special language construct list())? Isn't foo()->bar[1] an expression, not a variable?

[2006-04-20 16:58 UTC] dmitry@php.net

PHP always segfaults with this script if it is compied with --enable-debug.