Re: [PATCH v5.10 1/1] io_uring: Use original task for req identity in io_identity_cow()

[Jens Axboe <axboe@kernel.dk>]

On 7/19/22 5:52 AM, Lee Jones wrote:
> This issue is conceptually identical to the one fixed in 29f077d07051
> ("io_uring: always use original task when preparing req identity"), so
> rather than reinvent the wheel, I'm shamelessly quoting the commit
> message from that patch - thanks Jens:
> 
>  "If the ring is setup with IORING_SETUP_IOPOLL and we have more than
>   one task doing submissions on a ring, we can up in a situation where
>   we assign the context from the current task rather than the request
>   originator.
> 
>   Always use req->task rather than assume it's the same as current.
> 
>   No upstream patch exists for this issue, as only older kernels with
>   the non-native workers have this problem."

Greg, can you pick this one up for 5.10-stable? Thanks!

-- 
Jens Axboe