linux-kernel - Re: [PATCH 5/5] modules: only allow symbol_get of EXPORT_SYMBOL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZMf5WN/2BGC4vYoy@kernel.org>
Date:   Mon, 31 Jul 2023 20:11:36 +0200
From:   Simon Horman <horms@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Luis Chamberlain <mcgrof@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Yangbo Lu <yangbo.lu@....com>,
        Joshua Kinard <kumba@...too.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        linux-arm-kernel@...ts.infradead.org,
        open list <linux-kernel@...r.kernel.org>,
        linux-mmc@...r.kernel.org, netdev@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-modules@...r.kernel.org
Subject: Re: [PATCH 5/5] modules: only allow symbol_get of EXPORT_SYMBOL_GPL
 modules

On Mon, Jul 31, 2023 at 10:38:06AM +0200, Christoph Hellwig wrote:
> It has recently come to my attention that nvidia is circumventing the
> protection added in 262e6ae7081d ("modules: inherit
> TAINT_PROPRIETARY_MODULE") by importing exports from their propriertary
> modules into an allegedly GPL licensed module and then rexporting them.
> 
> Given that symbol_get was only ever inteded for tightly cooperating

nit: inteded -> intended

...