linux-kernel - Re: [syzbot] Monthly io-uring report

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Message-ID: <2309ca53-a126-881f-1ffa-4f5415a32173@kernel.dk>
Date:   Mon, 27 Mar 2023 12:23:24 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     syzbot <syzbot+lista29bb0eabb2ddbae6f4a@...kaller.appspotmail.com>,
        io-uring@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] Monthly io-uring report

On 3/27/23 5:01?AM, syzbot wrote:
> 1873    Yes   WARNING in split_huge_page_to_list (2)
>               https://syzkaller.appspot.com/bug?extid=07a218429c8d19b1fb25
> 38      Yes   KASAN: use-after-free Read in nfc_llcp_find_local
>               https://syzkaller.appspot.com/bug?extid=e7ac69e6a5d806180b40

These two are not io_uring. Particularly for the latter, I think syzbot
has a tendency to guess it's io_uring if any kind of task_work is
involved. That means anything off fput ends up in that bucket. Can we
get that improved please?

-- 
Jens Axboe