linux-kernel - Re: [PATCH for-6.12 0/4] block, bfq: fix corner cases related to bfqq merging

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Message-Id: <172537899519.20156.7615001741383878457.b4-ty@kernel.dk>
Date: Tue, 03 Sep 2024 09:56:35 -0600
From: Jens Axboe <axboe@...nel.dk>
To: jack@...e.cz, tj@...nel.org, josef@...icpanda.com, 
 paolo.valente@...more.it, mauro.andreolini@...more.it, 
 avanzini.arianna@...il.com, Yu Kuai <yukuai1@...weicloud.com>
Cc: cgroups@...r.kernel.org, linux-block@...r.kernel.org, 
 linux-kernel@...r.kernel.org, yukuai3@...wei.com, yi.zhang@...wei.com, 
 yangerkun@...wei.com
Subject: Re: [PATCH for-6.12 0/4] block, bfq: fix corner cases related to
 bfqq merging


On Mon, 02 Sep 2024 21:03:25 +0800, Yu Kuai wrote:
> Our syzkaller report a UAF problem(details in patch 1), however it can't
> be reporduced. And this set are some corner cases fix that might be
> related, and they are found by code review.
> 
> Yu Kuai (4):
>   block, bfq: fix possible UAF for bfqq->bic with merge chain
>   block, bfq: choose the last bfqq from merge chain in
>     bfq_setup_cooperator()
>   block, bfq: don't break merge chain in bfq_split_bfqq()
>   block, bfq: use bfq_reassign_last_bfqq() in bfq_bfqq_move()
> 
> [...]

Applied, thanks!

[1/4] block, bfq: fix possible UAF for bfqq->bic with merge chain
      commit: 18ad4df091dd5d067d2faa8fce1180b79f7041a7
[2/4] block, bfq: choose the last bfqq from merge chain in bfq_setup_cooperator()
      commit: 0e456dba86c7f9a19792204a044835f1ca2c8dbb
[3/4] block, bfq: don't break merge chain in bfq_split_bfqq()
      commit: 42c306ed723321af4003b2a41bb73728cab54f85
[4/4] block, bfq: use bfq_reassign_last_bfqq() in bfq_bfqq_move()
      commit: f45916ae60eb60e7c9c3ac60cf07e66fe1a7faad

Best regards,
-- 
Jens Axboe