Messages in this thread | | | Subject | Re: [PATCH 05/20] tomoyo_write_control(): get rid of pointless access_ok() | From | Tetsuo Handa <> | Date | Sun, 10 May 2020 10:04:16 +0900 |
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On 2020/05/10 9:57, Linus Torvalds wrote: > On Sat, May 9, 2020 at 5:51 PM Tetsuo Handa > <penguin-kernel@i-love.sakura.ne.jp> wrote: >> >> I think that this access_ok() check helps reducing partial writes (either >> "whole amount was processed" or "not processed at all" unless -ENOMEM). > > No it doesn't. > > "access_ok()" only checks the range being a valid user address range. >
I see. Thank you.
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
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