Memory Leak in DOM -> insertBefore

[chibinz]

Description

The following code:

<?php
$v0 = new DOMAttr ( "i" );
$v8 = new DOMDocument ( );

$v8 -> insertBefore ( $v0 );

Resulted in this output:

Fatal error: Uncaught Error: Cannot add newnode as the previous sibling of refnode in /workspaces/TriFuzz/triaged/dom_leak2.php:5
Stack trace:
#0 /workspaces/TriFuzz/triaged/dom_leak2.php(5): DOMNode->insertBefore(Object(DOMAttr))
#1 {main}
  thrown in /workspaces/TriFuzz/triaged/dom_leak2.php on line 5

=================================================================
==1231==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 96 byte(s) in 1 object(s) allocated from:
    #0 0x5650eda879ae in malloc /opt/llvm-15-build/llvm-15.x/final/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:69:3
    #1 0x7faa3c34bdad in xmlNewProp (/lib/x86_64-linux-gnu/libxml2.so.2+0x62dad) (BuildId: aebf8e42966c3ce475ff9d9d51a762831adcbb61)

Indirect leak of 2 byte(s) in 1 object(s) allocated from:
    #0 0x5650eda879ae in malloc /opt/llvm-15-build/llvm-15.x/final/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:69:3
    #1 0x7faa3c3cc7f2 in xmlStrdup (/lib/x86_64-linux-gnu/libxml2.so.2+0xe37f2) (BuildId: aebf8e42966c3ce475ff9d9d51a762831adcbb61)

SUMMARY: AddressSanitizer: 98 byte(s) leaked in 2 allocation(s).

PHP Version

PHP 8.5.0-dev

Operating System

No response

[nielsdos]

Duplicate of your other bug report #16533
#16537 fixes this too.