[PATCH 0/4] io_uring: verify that reserved fields are 0

[Dylan Yudaken <dylany@fb.com>]

A few reserved fields are not verified to be 0. In preparation for possibly using these fields later we should verify that they are passed as 0.

One extra field I do not have confidence in verifying is up.nr in io_register_files_update(). Should this also be checked to be zero?

Patch 1 in this series just moves a validation out of __io_register_rsrc_update as it was duplicated
Patch 2-4 add verifications for reserved fields

Dylan Yudaken (4):
  io_uring: move io_uring_rsrc_update2 validation
  io_uring: verify that resv2 is 0 in io_uring_rsrc_update2
  io_uring: verify resv is 0 in ringfd register/unregister
  io_uring: verify pad field is 0 in io_get_ext_arg

 fs/io_uring.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)


base-commit: 0f8da75b51ac863b9435368bd50691718cc454b0
-- 
2.30.2