linux-kernel - Re: [syzbot] [ext4?] possible deadlock in ext4_xattr_inode

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Date:   Mon, 08 May 2023 03:39:29 -0700
From:   syzbot <syzbot+298c5d8fb4a128bc27b0@...kaller.appspotmail.com>
To:     adilger.kernel@...ger.ca, elic@...dia.com, jasowang@...hat.com,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, mst@...hat.com, parav@...dia.com,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ext4?] possible deadlock in ext4_xattr_inode_iget

syzbot has bisected this issue to:

commit a3c06ae158dd6fa8336157c31d9234689d068d02
Author: Parav Pandit <parav@...dia.com>
Date:   Tue Jan 5 10:32:03 2021 +0000

    vdpa_sim_net: Add support for user supported devices

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1094ee22280000
start commit:   83e5775d7afd Add linux-next specific files for 20230505
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1294ee22280000
console output: https://syzkaller.appspot.com/x/log.txt?x=1494ee22280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d0c6b4b7069d73cf
dashboard link: https://syzkaller.appspot.com/bug?extid=298c5d8fb4a128bc27b0
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17b7c75c280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1284b832280000

Reported-by: syzbot+298c5d8fb4a128bc27b0@...kaller.appspotmail.com
Fixes: a3c06ae158dd ("vdpa_sim_net: Add support for user supported devices")

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