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From: syzbot <syzbot+99938118dfd9e1b0741a@syzkaller.appspotmail.com>
To: andrii@kernel.org, ast@kernel.org, axboe@kernel.dk,
	bpf@vger.kernel.org, daniel@iogearbox.net, hch@lst.de,
	john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	ming.lei@redhat.com, netdev@vger.kernel.org,
	songliubraving@fb.com, syzkaller-bugs@googlegroups.com,
	yhs@fb.com
Subject: Re: [syzbot] KASAN: use-after-free Read in bio_poll
Date: Mon, 09 May 2022 14:50:10 -0700	[thread overview]
Message-ID: <00000000000032d06e05de9b3136@google.com> (raw)
In-Reply-To: <00000000000029572505de968021@google.com>

syzbot has bisected this issue to:

commit 0f38d76646157357fcfa02f50575ea044830c494
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Oct 12 10:40:45 2021 +0000

    blk-mq: cleanup blk_mq_submit_bio

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12506f7ef00000
start commit:   c5eb0a61238d Linux 5.18-rc6
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11506f7ef00000
console output: https://syzkaller.appspot.com/x/log.txt?x=16506f7ef00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=78013caa620443d6
dashboard link: https://syzkaller.appspot.com/bug?extid=99938118dfd9e1b0741a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1484cbc1f00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10c7026cf00000

Reported-by: syzbot+99938118dfd9e1b0741a@syzkaller.appspotmail.com
Fixes: 0f38d7664615 ("blk-mq: cleanup blk_mq_submit_bio")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

      parent reply	other threads:[~2022-05-09 21:54 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-09 16:14 [syzbot] KASAN: use-after-free Read in bio_poll syzbot
2022-05-09 17:02 ` Jens Axboe
2022-05-10  0:13   ` Ming Lei
2022-05-10  5:50     ` Christoph Hellwig
2022-05-10 12:45       ` Jens Axboe
2022-05-19 11:01         ` Dmitry Vyukov
2022-05-09 21:50 ` syzbot [this message]

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