Stack overflow in array?

[djarfluka]

Description

The following code:

<?php
$a=[]; for($i=0;$i<1000000;$i++){ $a=[$a]; }
array_walk_recursive($a, function($v){});

Resulted in this output:

    #206 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #207 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #208 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #209 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #210 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #211 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #212 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #213 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #214 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #215 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #216 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #217 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #218 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #219 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #220 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #221 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #222 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #223 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #224 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #225 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #226 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #227 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #228 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #229 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #230 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #231 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #232 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #233 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #234 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #235 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #236 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #237 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #238 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #239 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #240 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #241 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #242 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #243 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #244 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #245 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #246 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #247 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #248 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #249 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461
    #250 0x5624114af02b in php_array_walk /home/php-src/ext/standard/array.c:1461

SUMMARY: AddressSanitizer: stack-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_stacktrace.h:52 in __sanitizer::StackTrace::StackTrace(unsigned long const*, unsigned int)
==24==ABORTING

USE_ZEND_ALLOC=0 php poc.php

PHP Version

8.6.0

Operating System

ubuntu 22.04