netdev - Re: [syzbot] general protection fault in submit_bio

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Date:   Thu, 03 Feb 2022 13:06:09 -0800
From:   syzbot <syzbot+2b3f18414c37b42dcc94@...kaller.appspotmail.com>
To:     andrii@...nel.org, ast@...nel.org, axboe@...nel.dk,
        bpf@...r.kernel.org, daniel@...earbox.net, hch@....de,
        john.fastabend@...il.com, kafai@...com, kch@...dia.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
Subject: Re: [syzbot] general protection fault in submit_bio_checks

syzbot has bisected this issue to:

commit a7c50c940477bae89fb2b4f51bd969a2d95d7512
Author: Christoph Hellwig <hch@....de>
Date:   Mon Jan 24 09:11:07 2022 +0000

    block: pass a block_device and opf to bio_reset

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12b4f1cc700000
start commit:   2d3d8c7643a5 Add linux-next specific files for 20220203
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11b4f1cc700000
console output: https://syzkaller.appspot.com/x/log.txt?x=16b4f1cc700000
kernel config:  https://syzkaller.appspot.com/x/.config?x=27a9abf2c11167c7
dashboard link: https://syzkaller.appspot.com/bug?extid=2b3f18414c37b42dcc94
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14635480700000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10eb2d14700000

Reported-by: syzbot+2b3f18414c37b42dcc94@...kaller.appspotmail.com
Fixes: a7c50c940477 ("block: pass a block_device and opf to bio_reset")

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