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

From: Jens Axboe
Date: Tue Apr 12 2022 - 12:47:14 EST


On Tue, 12 Apr 2022 09:30:38 -0700, Dylan Yudaken wrote:
> 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
>
> [...]

Applied, thanks!

[1/4] io_uring: move io_uring_rsrc_update2 validation
commit: 565c5e616e8061b40a2e1d786c418a7ac3503a8d
[2/4] io_uring: verify that resv2 is 0 in io_uring_rsrc_update2
commit: d8a3ba9c143bf89c032deced8a686ffa53b46098
[3/4] io_uring: verify resv is 0 in ringfd register/unregister
commit: 6fb53cf8ff2c4713247df523404d24f466b98f52
[4/4] io_uring: verify pad field is 0 in io_get_ext_arg
commit: d2347b9695dafe5c388a5f9aeb70e27a7a4d29cf

Best regards,
--
Jens Axboe