php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #78762 Failing FFI::cast() may leak memory
Submitted: 2019-10-30 16:13 UTC Modified: 2019-10-30 16:13 UTC
From: cmb@php.net Assigned: cmb (profile)
Status: Closed Package: *Extensibility Functions
PHP Version: 7.4Git-2019-10-30 (Git) OS: *
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: cmb@php.net
New email:
PHP Version: OS:

 

 [2019-10-30 16:13 UTC] cmb@php.net 
Description:
------------
If FFI::cast() fails with FFI\Exception "attempt to cast to larger
type", a zend_ffi_cdata struct is leaked.


Test script:
---------------
<?php
try {
    FFI::cast('char[10]', FFI::new('char[1]'));
} catch (FFI\Exception $ex) {
    echo $ex->getMessage(), PHP_EOL;
}


Expected result:
----------------
attempt to cast to larger type


Actual result:
--------------
attempt to cast to larger type
[Wed Oct 30 17:10:23 2019]  Script:  '/mnt/d/git/php/bug78761.php'
/mnt/d/git/php/php-src/ext/ffi/ffi.c(241) :  Freeing 0x00007f0f67081180 (88 bytes), script=/mnt/d/git/php/bug78761.php
=== Total 1 memory leaks detected ===

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2019-10-30 16:13 UTC] cmb@php.net
-Assigned To: +Assigned To: cmb
 [2019-10-30 16:23 UTC] cmb@php.net 
Automatic comment on behalf of cmbecker69@gmx.de
Revision: http://git.php.net/?p=php-src.git;a=commit;h=1e2d3d58a8b392385d926bdca11ba0a0bc2547b4
Log: Fix #78762: Failing FFI::cast() may leak memory
 [2019-10-30 16:23 UTC] cmb@php.net
-Status: Assigned +Status: Closed
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Sun Oct 26 01:00:01 2025 UTC