Bug #72216 [NEW]: Return by reference with finally is not memory safe
| From: | nikic@php.net | Date: | Fri, 13 May 2016 23:33:45 +0000 |
| Subject: | Bug #72216 [NEW]: Return by reference with finally is not memory safe | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-201082@lists.php.net to get a copy of this message | ||
From: nikic
Operating system:
PHP version: Irrelevant
Package: Scripting Engine problem
Bug Type: Bug
Bug description:Return by reference with finally is not memory safe
Description:
------------
Test script will valgrind (and show a leak). This issue is closely
related to bug #72215, in that both are caused by us not computing the
final return value (and backing it up) before the finally.
Test script:
---------------
<?php
function &test() {
$a = [];
try {
return $a[0];
} finally {
$a[""] = 42;
}
}
var_dump(test());
--
Edit bug report at https://bugs.php.net/bug.php?id=72216&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72216&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72216&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72216&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=72216&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=72216&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=72216&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=72216&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=72216&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=72216&r=support
Expected behavior: https://bugs.php.net/fix.php?id=72216&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=72216&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=72216&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=72216&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72216&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=72216&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=72216&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=72216&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=72216&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=72216&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=72216&r=mysqlcfg