Mysql PDO heap corruption on Win10 x64 1909 (PHP x86 NTS)

Description

The following code:

<?php
define('DB_DRIVER', 'mysql');
define('DB_HOST', 'localhost');
define('DB_PORT', 3306);
define('DB_USER', '[removed]');
define('DB_PASS', '[removed]');
define('DB_NAME', '[removed]');
define('DB_DSN' , DB_DRIVER.':dbname='.DB_NAME.';host='.DB_HOST.';port='.DB_PORT);
$params = array(
  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
  PDO::ATTR_PERSISTENT => true,
  PDO::ATTR_EMULATE_PREPARES => false,
  PDO::MYSQL_ATTR_INIT_COMMAND => "SET SESSION sql_mode='', group_concat_max_len=32000, time_zone='+00:00'"
);
$params[PDO::ATTR_DEFAULT_FETCH_MODE] = PDO::FETCH_OBJ;
$handle = new PDO(DB_DSN, DB_USER, DB_PASS, $params);

Resulted in this output:
Random crashes with the following in Event Viewer:

Faulting application name: php-cgi.exe, version: 8.1.8.0, time stamp: 0x62c4c3bb
Faulting module name: ntdll.dll, version: 10.0.18362.719, time stamp: 0x832e7bce
Exception code: 0xc0000374
Fault offset: 0x000df95d
Faulting process id: 0x5458
Faulting application start time: 0x01d8a070256f66a2
Faulting application path: C:\Program Files (x86)\php81\php-cgi.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: a41ae7dc-55de-4152-b401-9553e23d1b5d
Faulting package full name: 
Faulting package-relative application ID: 

But I expected this output instead:

Successful database connection and no crashing.

Other notes:
This issue seems to be somewhat random, but I was able to get it to consistently crash if I kill the idle db connection via the sql command kill <id>;, then refresh the page. Using IIS 10 configured to hand-off the request to php via fastcgi. Database server attempting to connect to is on the same machine - Version: 10.4.12-MariaDB-log - Win10 x64. DebugDiag log attached (zipped due to file ext limitation on github).

php-cgi.exe_220725_131714_CrashHangAnalysis.zip

PHP Version

PHP 8.1.8 x86 NTS

Operating System

Windows 10 x64 1909

Commencez par reproduire la connexion PDO montrée dans l’issue avec des connexions persistantes, puis tuez la connexion MariaDB inactive et actualisez via IIS FastCGI. Examinez le journal DebugDiag joint ainsi que les chemins de connexion et de reconnexion de PDO MySQL ; la tâche est considérée comme terminée lorsque la même séquence ne provoque plus de crash dû à une corruption du tas.