linux-kernel - Re: [syzbot] possible deadlock in btrfs_dirty

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Message-ID: <00000000000048f87b05f368b832@google.com>
Date:   Sun, 29 Jan 2023 07:26:17 -0800
From:   syzbot <syzbot+37edf86c9b60581e523f@...kaller.appspotmail.com>
To:     anand.jain@...cle.com, clm@...com, dsterba@...e.com,
        hdanton@...a.com, josef@...icpanda.com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] possible deadlock in btrfs_dirty_inode

syzbot suspects this issue was fixed by commit:

commit b740d806166979488e798e41743aaec051f2443f
Author: Josef Bacik <josef@...icpanda.com>
Date:   Mon Nov 7 16:44:51 2022 +0000

    btrfs: free btrfs_path before copying root refs to userspace

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10cf123e480000
start commit:   77c51ba552a1 Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=6f9416d398342c83
dashboard link: https://syzkaller.appspot.com/bug?extid=37edf86c9b60581e523f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=148fcd31880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=167bfb31880000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: btrfs: free btrfs_path before copying root refs to userspace

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