From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f70.google.com (mail-ot1-f70.google.com [209.85.210.70]) (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 5D3AF3D9057 for ; Tue, 31 Mar 2026 08:06:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774944403; cv=none; b=l0Qrs/BSWzhW1uZVyJIUpkqj0Nm1seznLjNFVop3qLdmx1DnoAs9DMSdyfXBbNMhulEoMHP2+7bPzkvRm86vmbhgU16nu3AyVvwLVr/05uDX4fYZw066Fp3hNOUi7O55XyNBT8q++IGYPVAxst4/amqXwHCzukHH9FVXZLhdhII= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774944403; c=relaxed/simple; bh=+8YFiw1B6y1YFkk5dSLpfeIP5h+UIA6iazQypoNRQb8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=lUm/1GFpzJYMA64jT1JD4nuhDZfZAEKy2HTN6fBbOYASr8o0E8cG3EArzfA/GHNEkIfctvDDgqwLk2JBerhUwrUIym+NIgAOYIzgyfVpB+cRFgn/46qKv5/jITB0aAGZfSJnVX/k/gTYKgced52w4VDF24wqVU0IEyKgJboCi8s= 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=209.85.210.70 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-ot1-f70.google.com with SMTP id 46e09a7af769-7d7c848c866so8445979a34.0 for ; Tue, 31 Mar 2026 01:06:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774944392; x=1775549192; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=80/wBveKsIpvFfGqvh9uozGb/gwtBxszU+a0bRBcwwU=; b=gMorOSi/ZPjVFfSBb2GOLJfbRd6Rvb2z2cqRqkz9uWXScj9tKW96Ga9+e0Y50j5vlT /bz5TlDM/VZtg4Bkskz59Qb5UegJX60ZWHIt9wIFtrfg5wKr3T8+3a6w/hFpwvO60NVf gW6FNjpqOeAhuaWzoZuXRs6NmoJ3z/F0n/Q/lgkT7cBjqzklv0ap3TegZTp/13/pmu1N T/yGFHBIt4bgk1Z0K5ra5+piVnDwEPlUWrj3lQoWS/4WLh6++k3AceFpOYDpou9MXiZy twLkaIf1bCEryZ9kHRHgmmJ3iZ+UmZn6PSbM+pPFx95GDZm+ITQG/Z9Wus5ISlAI1LbL gViw== X-Forwarded-Encrypted: i=1; AJvYcCWF2vIrSD2gZ4IXNoaoC2Redc6LlpAKg7rPoLL9gNPWGZESi7svWHvQQvimdiFtZmth7q4/phUApOsfnaI=@vger.kernel.org X-Gm-Message-State: AOJu0YwK21O+NTzQI1NIho3zQKNMKnqYsYrk5DNHwpCVmHc4LdrdoRF9 vHQADjelDJz/K9A6DZdlAY3MV1wDQqnd3PEzpDKlsHaXW1q9FCH19kqjUF6X8Dw3mqH9yICZK+i 1phYvZ/mIlnNYyYHRU9vKtAU7I/N63RV5bhvUX9tDA5IjnQp4DYwHOq6hmAk= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:f00e:b0:67e:21c9:ab55 with SMTP id 006d021491bc7-67e21c9b5f2mr7366658eaf.3.1774944392285; Tue, 31 Mar 2026 01:06:32 -0700 (PDT) Date: Tue, 31 Mar 2026 01:06:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69cb8088.a70a0220.128fd0.0049.GAE@google.com> Subject: [syzbot] Monthly kernfs report (Mar 2026) 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, 2 new issues were detected and 0 were fixed. In total, 30 issues are still open and 26 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 5411 Yes possible deadlock in kernfs_iop_getattr https://syzkaller.appspot.com/bug?extid=4bb2305559463e8f6a2a <2> 1071 No possible deadlock in kernfs_unlink_sibling (2) https://syzkaller.appspot.com/bug?extid=a0ec0dbf8642550c291a <3> 586 Yes WARNING in kernfs_get (5) https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6 <4> 581 Yes WARNING in kernfs_remove_by_name_ns (3) https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d <5> 460 Yes INFO: rcu detected stall in hub_event (2) https://syzkaller.appspot.com/bug?extid=039eab266c6321a174bd <6> 442 Yes possible deadlock in lookup_slow (3) https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3 <7> 295 Yes possible deadlock in kernfs_remove https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3 <8> 197 No possible deadlock in kernfs_fop_readdir https://syzkaller.appspot.com/bug?extid=8fd10d8928ed1f715290 <9> 136 Yes INFO: task hung in kernfs_dop_revalidate (4) https://syzkaller.appspot.com/bug?extid=da20d108162166514db6 <10> 126 Yes INFO: task hung in fdget_pos https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7 --- 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.