linux-kernel - [syzbot] Monthly overlayfs report

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Date:   Wed, 05 Apr 2023 01:55:47 -0700
From:   syzbot <syzbot+listf458cf6e943ee253729f@...kaller.appspotmail.com>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-unionfs@...r.kernel.org, miklos@...redi.hu,
        syzkaller-bugs@...glegroups.com
Subject: [syzbot] Monthly overlayfs report

Hello overlayfs maintainers/developers,

This is a 30-day syzbot report for the overlayfs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/overlayfs

During the period, 0 new issues were detected and 0 were fixed.
In total, 11 issues are still open and 17 have been fixed so far.

Some of the still happening issues:

Crashes Repro Title
785     Yes   possible deadlock in ovl_maybe_copy_up
              https://syzkaller.appspot.com/bug?extid=c18f2f6a7b08c51e3025
442     Yes   possible deadlock in mnt_want_write (2)
              https://syzkaller.appspot.com/bug?extid=b42fe626038981fb7bfa
24      Yes   BUG: unable to handle kernel paging request in take_dentry_name_snapshot
              https://syzkaller.appspot.com/bug?extid=90392eaed540afcc8fc3
11      Yes   WARNING: locking bug in take_dentry_name_snapshot
              https://syzkaller.appspot.com/bug?extid=5a195884ee3ad761db4e

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.