linux-kernel - Re: [syzbot] KASAN: use-after-free Read in bio

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Message-ID: <20220510055039.GA10576@lst.de>
Date:   Tue, 10 May 2022 07:50:39 +0200
From:   Christoph Hellwig <hch@....de>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>,
        syzbot <syzbot+99938118dfd9e1b0741a@...kaller.appspotmail.com>,
        andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
        daniel@...earbox.net, john.fastabend@...il.com, kafai@...com,
        kpsingh@...nel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com, yhs@...com,
        Christoph Hellwig <hch@....de>
Subject: Re: [syzbot] KASAN: use-after-free Read in bio_poll

On Tue, May 10, 2022 at 08:13:58AM +0800, Ming Lei wrote:
> > Guys, should we just queue:
> > 
> > ommit 9650b453a3d4b1b8ed4ea8bcb9b40109608d1faf
> > Author: Ming Lei <ming.lei@...hat.com>
> > Date:   Wed Apr 20 22:31:10 2022 +0800
> > 
> >     block: ignore RWF_HIPRI hint for sync dio
> > 
> > up for 5.18 and stable?
> 
> I am fine with merging to 5.18 & stable.

I'm fine, too.  But are we sure this actually is one and the same
issue?  Otherwise I'll try to find some time to feed it to syzbot
first.