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Message-ID: <000000000000686d3405f1895819@google.com>
Date:   Thu, 05 Jan 2023 11:31:19 -0800
From:   syzbot <syzbot+9ce4a36127ca92b59677@...kaller.appspotmail.com>
To:     clm@...com, djwong@...nel.org, dsterba@...e.com, fdmanana@...e.com,
        josef@...icpanda.com, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [btrfs?] kernel BUG in insert_state_fast

syzbot has bisected this issue to:

commit 05fd9564e9faf0f23b4676385e27d9405cef6637
Author: Darrick J. Wong <djwong@...nel.org>
Date:   Mon Mar 14 17:55:32 2022 +0000

    btrfs: fix fallocate to use file_modified to update permissions consistently

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14ef1870480000
start commit:   644e9524388a Merge tag 'for-v6.1-rc' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16ef1870480000
console output: https://syzkaller.appspot.com/x/log.txt?x=12ef1870480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=8d01b6e3197974dd
dashboard link: https://syzkaller.appspot.com/bug?extid=9ce4a36127ca92b59677
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12806381880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=127f33c5880000

Reported-by: syzbot+9ce4a36127ca92b59677@...kaller.appspotmail.com
Fixes: 05fd9564e9fa ("btrfs: fix fallocate to use file_modified to update permissions consistently")

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

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