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From: Casey Schaufler <[email protected]>
To: Luis Chamberlain <[email protected]>, Paul Moore <[email protected]>
Cc: Jens Axboe <[email protected]>, Ming Lei <[email protected]>,
	[email protected],
	Linus Torvalds <[email protected]>,
	[email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected],
	[email protected]
Subject: Re: [PATCH v2] lsm,io_uring: add LSM hooks for the new uring_cmd file op
Date: Wed, 10 Aug 2022 12:26:11 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 8/10/2022 11:52 AM, Luis Chamberlain wrote:
> On Wed, Aug 10, 2022 at 02:39:54PM -0400, Paul Moore wrote:
>> On Wed, Aug 10, 2022 at 2:14 PM Luis Chamberlain <[email protected]> wrote:
>>> On Fri, Jul 15, 2022 at 01:28:35PM -0600, Jens Axboe wrote:
>>>> On 7/15/22 1:16 PM, Luis Chamberlain wrote:
>>>>> io-uring cmd support was added through ee692a21e9bf ("fs,io_uring:
>>>>> add infrastructure for uring-cmd"), this extended the struct
>>>>> file_operations to allow a new command which each subsystem can use
>>>>> to enable command passthrough. Add an LSM specific for the command
>>>>> passthrough which enables LSMs to inspect the command details.
>>>>>
>>>>> This was discussed long ago without no clear pointer for something
>>>>> conclusive, so this enables LSMs to at least reject this new file
>>>>> operation.
>>>> From an io_uring perspective, this looks fine to me. It may be easier if
>>>> I take this through my tree due to the moving of the files, or the
>>>> security side can do it but it'd have to then wait for merge window (and
>>>> post io_uring branch merge) to do so. Just let me know. If done outside
>>>> of my tree, feel free to add:
>>>>
>>>> Acked-by: Jens Axboe <[email protected]>
>>> Paul, Casey, Jens,
>>>
>>> should this be picked up now that we're one week into the merge window?
>> Your timing is spot on!  I wrapped up a SELinux/SCTP issue by posting
>> the patches yesterday and started on the io_uring/CMD patches this
>> morning :)
>>
>> Give me a few days to get this finished, tested, etc. and I'll post a
>> patchset with your main patch, the Smack patch from Casey, the SELinux
>> patch, and the /dev/null patch so we can all give it a quick sanity
>> check before I merge it into the LSM/stable branch and send it to
>> Linus.  Does that sound okay?

It's taking a while to get a satisfactory test going for Smack,
but I should have something in a few days.

> Works with me! But just note I'll be away on vacation starting tomorrow
> in the woods looking for Bigfoot with my dog,

Bigfoot was sighted lounging on Chuckanut Rock a couple weeks ago.

>  so I won't be around. And
> I suspect Linus plans to release 6.0 on Sunday, if the phb-crystall-ball [0]
> is still as accurate.
>
> [0] http://deb.tandrin.de/phb-crystal-ball.htm
>
>   Luis

  reply	other threads:[~2022-08-10 19:26 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-15 19:16 [PATCH v2] lsm,io_uring: add LSM hooks for the new uring_cmd file op Luis Chamberlain
2022-07-15 19:28 ` Jens Axboe
2022-07-15 19:52   ` Paul Moore
2022-07-16  3:33     ` Paul Moore
2022-07-18 17:12       ` Casey Schaufler
2022-07-18 21:52         ` Paul Moore
2022-07-19  4:47           ` Kanchan Joshi
2022-07-19 13:54             ` Ming Lei
2022-07-20 15:06         ` Paul Moore
2022-07-20 15:11           ` Jens Axboe
2022-08-10 18:14   ` Luis Chamberlain
2022-08-10 18:39     ` Paul Moore
2022-08-10 18:52       ` Luis Chamberlain
2022-08-10 19:26         ` Casey Schaufler [this message]
2022-08-10 22:15           ` Paul Moore
2022-08-10 22:14         ` Paul Moore

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