netdev - Re: [PATCH 6/8] fwctl: Add documentation

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]

Date: Wed, 5 Jun 2024 13:14:04 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Jonathan Corbet <corbet@....net>, Itay Avraham <itayavr@...dia.com>,
 Jakub Kicinski <kuba@...nel.org>, Leon Romanovsky <leon@...nel.org>,
 linux-doc@...r.kernel.org, linux-rdma@...r.kernel.org,
 netdev@...r.kernel.org, Paolo Abeni <pabeni@...hat.com>,
 Saeed Mahameed <saeedm@...dia.com>, Tariq Toukan <tariqt@...dia.com>,
 Andy Gospodarek <andrew.gospodarek@...adcom.com>,
 Aron Silverton <aron.silverton@...cle.com>,
 Dan Williams <dan.j.williams@...el.com>, David Ahern <dsahern@...nel.org>,
 Christoph Hellwig <hch@...radead.org>, Jiri Pirko <jiri@...dia.com>,
 Leonid Bloch <lbloch@...dia.com>, Leon Romanovsky <leonro@...dia.com>,
 linux-cxl@...r.kernel.org, patches@...ts.linux.dev
Subject: Re: [PATCH 6/8] fwctl: Add documentation



On 6/5/24 9:03 AM, Jason Gunthorpe wrote:
> On Tue, Jun 04, 2024 at 07:31:10PM -0700, Randy Dunlap wrote:
> 
>>> +Modern devices contain extensive amounts of FW, and in many cases, are largely
>>> +software defined pieces of hardware. The evolution of this approach is largely a
>>
>>   software-defined
> 
> Thanks a lot Randy, I picked up all your notes.
> 
>>> +While the kernel can always directly parse and restrict RPCs, it is expected
>>> +that the existing kernel pattern of allowing drivers to delegate validation to
>>> +FW to be a useful design.
>>
>> (and one that can be abused...)
> 
> I would really like to write a paragraph about this "abuse", Dan has
> some good thoughts on this as well. Did you have a specific "abuse"
> in your mind?

No, I don't. It just seems very open (but ioctls are just as open).

-- 
#Randy
https://people.kernel.org/tglx/notes-about-netiquette
https://subspace.kernel.org/etiquette.html