[GIT PULL] io_uring fixes for 5.6-rc

[Jens Axboe]

Hi Linus,

Two different fixes in here:

- Fix for a potential NULL pointer deref for links with async or drain
  marked (Pavel)

- Fix for not properly checking RLIMIT_NOFILE for async punted
  operations. This affects openat/openat2, which were added this cycle,
  and accept4. I did a full audit of other cases where we might check
  current->signal->rlim[] and found only RLIMIT_FSIZE for buffered
  writes and fallocate. That one is fixed and queued for 5.7 and marked
  stable.

Please pull!


  git://git.kernel.dk/linux-block.git tags/io_uring-5.6-20200320


----------------------------------------------------------------
Jens Axboe (2):
      io_uring: make sure openat/openat2 honor rlimit nofile
      io_uring: make sure accept honor rlimit nofile

Pavel Begunkov (1):
      io_uring: NULL-deref for IOSQE_{ASYNC,DRAIN}

 fs/file.c              |  7 ++++++-
 fs/io_uring.c          | 18 ++++++++++++++++--
 include/linux/file.h   |  1 +
 include/linux/socket.h |  3 ++-
 net/socket.c           |  8 +++++---
 5 files changed, 30 insertions(+), 7 deletions(-)

-- 
Jens Axboe