linux-kernel - Re: [PATCH] io_uring: Enable KASAN for request cache

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Message-Id: <167422926391.670047.2726157847923072257.b4-ty@kernel.dk>
Date:   Fri, 20 Jan 2023 08:41:03 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     asml.silence@...il.com, io-uring@...r.kernel.org,
        Breno Leitao <leitao@...ian.org>
Cc:     kasan-dev@...glegroups.com, leit@...com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] io_uring: Enable KASAN for request cache


On Wed, 18 Jan 2023 07:56:30 -0800, Breno Leitao wrote:
> Every io_uring request is represented by struct io_kiocb, which is
> cached locally by io_uring (not SLAB/SLUB) in the list called
> submit_state.freelist. This patch simply enabled KASAN for this free
> list.
> 
> This list is initially created by KMEM_CACHE, but later, managed by
> io_uring. This patch basically poisons the objects that are not used
> (i.e., they are the free list), and unpoisons it when the object is
> allocated/removed from the list.
> 
> [...]

Applied, thanks!

[1/1] io_uring: Enable KASAN for request cache
      commit: 9f61fe5e410444ccecb429e69536ecd981c73c08

Best regards,
-- 
Jens Axboe