ext/ldap: Various NULL pointer dereferencements in `ldap_modify_batch()`

[Girgias]

Description

The following code:

<?php

/* We are assuming 3333 is not connectable */
$ldap = ldap_connect('ldap://127.0.0.1:3333');
$valid_dn = "cn=userA,something";

$modification_missing_attrib_key = [
    [
        "modtype" => LDAP_MODIFY_BATCH_ADD,
        "values"  => ["value1"],
    ],
];
try {
    var_dump(ldap_modify_batch($ldap, $valid_dn, $modification_missing_attrib_key));
} catch (Throwable $e) {
    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
}

Resulted in this output:

home/girgias/Dev/php-src/ext/ldap/ldap.c:2762:28: runtime error: member access within null pointer of type 'struct zval'

But I expected this output instead:

A ValueError being thrown

Moreover, the following code:

<?php

/* We are assuming 3333 is not connectable */
$ldap = ldap_connect('ldap://127.0.0.1:3333');
$valid_dn = "cn=userA,something";

$modification_missing_modtype_key = [
    [
        "attrib"  => "attrib1",
        "values"  => ["value1"],
    ],
];
try {
    var_dump(ldap_modify_batch($ldap, $valid_dn, $modification_missing_modtype_key));
} catch (Throwable $e) {
    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
}

Resulted in this output:

/home/girgias/Dev/php-src/ext/ldap/ldap.c:2741:11: runtime error: member access within null pointer of type 'struct zval'

But I expected this output instead:

A ValueError being thrown

PHP Version

PHP 8.2

Operating System

No response