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

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Message-ID: <000000000000528ff0060301ce79@google.com>
Date:   Tue, 15 Aug 2023 20:22:31 -0700
From:   syzbot <syzbot+cdcd444e4d3a256ada13@...kaller.appspotmail.com>
To:     adilger.kernel@...ger.ca, brauner@...nel.org, jack@...e.com,
        jack@...e.cz, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ext4?] possible deadlock in quotactl_fd

syzbot suspects this issue was fixed by commit:

commit 949f95ff39bf188e594e7ecd8e29b82eb108f5bf
Author: Jan Kara <jack@...e.cz>
Date:   Tue Apr 11 12:10:19 2023 +0000

    ext4: fix lockdep warning when enabling MMP

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13a06a65a80000
start commit:   1dc3731daf1f Merge tag 'for-6.4-rc1-tag' of git://git.kern..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=8bc832f563d8bf38
dashboard link: https://syzkaller.appspot.com/bug?extid=cdcd444e4d3a256ada13
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12cc2a92280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10dc5fa6280000

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

#syz fix: ext4: fix lockdep warning when enabling MMP

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