From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C122155C97 for ; Sat, 23 Aug 2025 16:32:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755966751; cv=none; b=s8IOIrcwlveKq+9k3WAoahhSvknpFsjpRLWu2TChmC9hPN4OJyfO7XE3/yvSGJRNjUYI02o/UpF0Pt99su/ZkRYXFLkUa2lsY53tg5vfa5lRx5PZzRM1jhVOWDbfKUdQIktE0tEYL698beQNHMVFJw5sovdch7c0BXMoCN3EGSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755966751; c=relaxed/simple; bh=Ixqw/hp30/DHUOKHuiafJGeec1MGisIVO9zmHr6m99E=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=umjQ8w19vsAVba0bvoZV+80Kk1DcayMNbt7zB6/N1QgxkxvNdsk+uMJtYbXR9K+iBRy1ljd4bA0XdUwcD0/6oTSTsivwM7jT6CkyGHTzvXbMiuMOocT5WLde4Kur0+YGD+UGf674EuO/8suIHwnGoxe4MgOb1yXljauY/fMMNf0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-886ca8326a0so49581339f.0 for ; Sat, 23 Aug 2025 09:32:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755966749; x=1756571549; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=lcf3G7AZTZ3BvIAmrod20JI+uK6LJ+LwOSTLr17yDAc=; b=eA3U1FhQ7GcWGr6PNpLFZpXGcprAQBrITyw93xomnNGHzFXSIDa+Sr1z53B5tc0Xla bGI75OcKGCwvhdyoQwmvXAomWg+T3PeNHcnK5VHvSp81Y7WXONKD3hW2mwg4VecEGbWB T7UVlYNVTFJd8uwsGe+51rykWO09xSMBTZpamzkY3R9pE+8dblMUOjnTTcDuv87HVkNe abVtPPDxV7lhXexNJ25heuCxmeoqPvNJMGQoMaH3pLbdYSKbNOYCbklIWj8IfuCySQpY 60hdQ8qAwtR5RWTwX5+gl4EYTMIWT6AzUxx4AR3bcR0ZwqLCbTQPVrUVeuRfTVLXJ+II XSUw== X-Forwarded-Encrypted: i=1; AJvYcCUxa24hwrtga7nvvAQ7NcXN/dPufXD3W5Mh7Pj7h1q3Tf68e30wRqH5pPyjyPTvKmZ9lVK3tS59Qyzcktg=@vger.kernel.org X-Gm-Message-State: AOJu0YxzhCrIkxC8C9SRqffsnfIeioGBpqZN68fgU6daSyJ6jmcJzjlW PPSoUwA4FF5CMuUN4B8LY5Lm6SQLdadpU3mJDmYw4HU2t9ZE60+BFUtkiIS1viTriaoDnJR5xCz zrS+h/dTLouAIw5djbodT8tc5sxPbsNXXNPBaVkVF0WFURN9m6m4a6ojv1X8= X-Google-Smtp-Source: AGHT+IHJPaZdZeiieNToh/ejIdh6QqDYkdfCshI9TpRc1PfNLpu25wa/9cQjXni1aK3BptqLhk9QEBuC9/QmJBhWzOXwvF/EJ0qs Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:4405:20b0:3e9:eec4:9b61 with SMTP id e9e14a558f8ab-3e9eec49f5emr47223185ab.32.1755966749190; Sat, 23 Aug 2025 09:32:29 -0700 (PDT) Date: Sat, 23 Aug 2025 09:32:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68a9ed1d.a00a0220.3557d1.0020.GAE@google.com> Subject: [syzbot] Monthly kernfs report (Aug 2025) From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org Content-Type: text/plain; charset="UTF-8" Hello kernfs maintainers/developers, This is a 31-day syzbot report for the kernfs subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/kernfs During the period, 3 new issues were detected and 0 were fixed. In total, 26 issues are still open and 24 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 869 Yes possible deadlock in kernfs_iop_getattr https://syzkaller.appspot.com/bug?extid=4bb2305559463e8f6a2a <2> 450 Yes WARNING in kernfs_remove_by_name_ns (3) https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d <3> 445 Yes WARNING in kernfs_get (5) https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6 <4> 355 No possible deadlock in lookup_slow (3) https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3 <5> 108 Yes INFO: task hung in fdget_pos https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7 <6> 69 Yes INFO: task hung in kernfs_add_one https://syzkaller.appspot.com/bug?extid=e4804edf2708e8b7d2a5 <7> 64 Yes possible deadlock in kernfs_remove https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3 <8> 53 Yes INFO: rcu detected stall in sys_unshare (9) https://syzkaller.appspot.com/bug?extid=872bccd9a68c6ba47718 <9> 43 No INFO: task hung in sb_start_write (2) https://syzkaller.appspot.com/bug?extid=b3fba2e269970207b61d <10> 11 No BUG: unable to handle kernel paging request in kernfs_remove_by_name_ns https://syzkaller.appspot.com/bug?extid=4faa3fd832279bd35a81 --- 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@googlegroups.com. To disable reminders for individual bugs, reply with the following command: #syz set no-reminders To change bug's subsystems, reply with: #syz set subsystems: new-subsystem You may send multiple commands in a single email message.