Bug #80363 [Opn]: TypeError with nullable types with JIT enabled

From: Date: Tue, 17 Nov 2020 09:41:16 +0000
Subject: Bug #80363 [Opn]: TypeError with nullable types with JIT enabled
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-230399@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=80363&edit=1

 ID:                 80363
 Updated by:         nikic@php.net
 Reported by:        security at paragonie dot com
 Summary:            TypeError with nullable types with JIT enabled
 Status:             Open
 Type:               Bug
 Package:            *General Issues
 Operating System:   N/A
 PHP Version:        8.0.0RC4
 Block user comment: N
 Private report:     N

 New Comment:

I can't reproduce this when running the constant_time_encoding tests (with JIT) at least. From
the issue, it's not really clear how this is supposed to be reproduced.


Previous Comments:
------------------------------------------------------------------------
[2020-11-13 17:12:27] security at paragonie dot com

Description:
------------
https://github.com/paragonie/constant_time_encoding/issues/26

This was reported in PHP-8.0-RC3 and there is nothing in the NEWS file to indicate it's fixed
in RC4.

https://github.com/php/php-src/blob/f5be0e5110ff816d2ce168c154cb3575d08e3cad/NEWS

Test script:
---------------
See Github issue.

Expected result:
----------------
No TypeError

Actual result:
--------------
TypeError: mb_substr(): Argument #3 ($length) must be of type ?int, null given
#34 /vendor/paragonie/constant_time_encoding/src/Binary.php(76): mb_substr
#33 /vendor/paragonie/constant_time_encoding/src/Binary.php(76):
ParagonIE\ConstantTime\Binary::safeSubstr
#32 /vendor/paragonie/hidden-string/src/HiddenString.php(173):
ParagonIE\HiddenString\HiddenString::safeStrcpy
#31 /vendor/paragonie/hidden-string/src/HiddenString.php(56):
ParagonIE\HiddenString\HiddenString::__construct
#30 /vendor/paragonie/halite/src/Symmetric/Crypto.php(208):
ParagonIE\Halite\Symmetric\Crypto::decryptWithAd
#29 /vendor/paragonie/halite/src/Symmetric/Crypto.php(105):
ParagonIE\Halite\Symmetric\Crypto::decrypt
#28 /vendor/philetaylor/doctrine-encrypt/Encryptors/HaliteEncryptor.php(82):
Philetaylor\DoctrineEncryptBundle\Encryptors\HaliteEncryptor::decrypt


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