[PATCH v2] lsm,io_uring: add LSM hooks for the new uring_cmd file op

[Luis Chamberlain]

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 <axboe at kernel.dk>

Paul, Casey, Jens,

should this be picked up now that we're one week into the merge window?

  Luis