Re: [PATCH 0/3] LSM hooks for IORING_OP_URING_CMD

[Paul Moore <paul@paul-moore.com>]

On Mon, Aug 22, 2022 at 5:21 PM Paul Moore <paul@paul-moore.com> wrote:
>
> This patchset includes three patches: one to add a new LSM hook for
> the IORING_OP_URING_CMD operation, one to add the SELinux
> implementation for the new hook, and one to enable
> IORING_OP_URING_CMD for /dev/null.  The last patch, the /dev/null
> support, is obviously not critical but it makes testing so much
> easier and I believe is in keeping with the general motivation behind
> /dev/null.
>
> Luis' patch has already been vetted by Jens and the io_uring folks,
> so the only new bits are the SELinux implementation and the trivial
> /dev/null implementation of IORING_OP_URING_CMD.  Assuming no one
> has any objections over the next few days, I'll plan on sending this
> up to Linus during the v6.0-rcX cycle.
>
> I believe Casey is also currently working on Smack support for the
> IORING_OP_URING_CMD hook, and as soon as he is ready I can add it
> to this patchset (or Casey can send it up himself).
>
> -Paul
>
> ---
>
> Luis Chamberlain (1):
>       lsm,io_uring: add LSM hooks for the new uring_cmd file op
>
> Paul Moore (2):
>       selinux: implement the security_uring_cmd() LSM hook
>       /dev/null: add IORING_OP_URING_CMD support
>
>
>  drivers/char/mem.c                  |  6 ++++++
>  include/linux/lsm_hook_defs.h       |  1 +
>  include/linux/lsm_hooks.h           |  3 +++
>  include/linux/security.h            |  5 +++++
>  io_uring/uring_cmd.c                |  5 +++++
>  security/security.c                 |  4 ++++
>  security/selinux/hooks.c            | 24 ++++++++++++++++++++++++
>  security/selinux/include/classmap.h |  2 +-
>  8 files changed, 49 insertions(+), 1 deletion(-)

FYI, I just merged this into lsm/stable-6.0 and once the automated
testing completes and we sort out the Smack patch I'll send this up to
Linus.

-- 
paul-moore.com