Fwd: SySS Responsible Disclosure Policy

[Robin Trost]

Hi all,

during a recent assessment I identified two vulnerability in the parsing 
of ext file systems. As you are the maintainers regarding [1], I've sent 
you the advisory advisory (SYSS-2026-040: Arbitrary OOB Heap Write 
(Ext4) and SYSS-2026-041: Arbitrary OOB Heap Read (Ext4)) including a 
"optional" fix and a reproducer script which illustrates that the 
vulnerability can lead to arbitrary code execution in the sandbox.

If you have further questions, please do not hesitate to contact me.

Kind regards,
Robin

[1] https://docs.u-boot.org/en/latest/develop/security.html



-------- Forwarded Message --------
Subject: SySS Responsible Disclosure Policy
Date: Wed, 10 Jun 2026 15:46:26 +0200
From: Robin Trost <Robin.Trost at syss.de>
To: u-boot at lists.denx.de <u-boot at lists.denx.de>
CC: trini at konsulko.com <trini at konsulko.com>, p_mailqueue_disclosure 
<disclosure at syss.de>

Hi all,

The SySS GmbH deals with security issues in a responsible way. In the 
form of a security advisory we report security vulnerabilities which are 
not in products of our customers and which are not excluded from public 
disclosure due to contractual agreements with vendors.

The attached security advisories contain detailed information about the 
found vulnerabilities that allows the vendor to reproduce and further 
investigate the reported security issue. Vulnerabilities will be 
disclosed to the public if a solution was published by the vendor or 45 
days after the initial report by the SySS GmbH, regardless of the 
vulnerability status, for example if there is a patch or workaround from 
the affected vendor. In well-founded exceptional cases, this standard 
procedure may not be followed and an alternative, adjusted publication 
schedule will be negotiated with the vendor.

The goal of our Responsible Disclosure Policy is, to weigh up the need 
of the public to know of security vulnerabilities against the vendor’s 
time to remedy all security issues effectively. The final publication 
schedule will be based on the best interests of the community overall, 
considering both positions. Before the responsible disclosure of a 
security vulnerability, the SySS GmbH allows vendors the opportunity to 
analyze reported security issues, to develop effective countermeasures, 
and to test them thoroughly.

If there are any further questions regarding the identified 
vulnerabilities do not hesitate to contact me.

Kind regards,
-- 
Robin Trost
Senior IT-Security Consultant
______________________________________________________________

SySS GmbH
Schaffhausenstraße 77, 72072 Tübingen, Germany
Tel: +49 (0)7071 - 40 78 56-6169
Mobil: +49 (0)151 - 42209330
E-Mail: Robin.Trost at syss.de
Conf. Calls: https://syss.zoom.us/my/robin.trost
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