From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f69.google.com (mail-ot1-f69.google.com [209.85.210.69]) (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 5805829DB86 for ; Fri, 26 Dec 2025 07:48:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766735306; cv=none; b=UjR5B51ErnpbUiRucLSAwfDRYaueq31/57EwYGhLILhdkkS5QQpXn/KdoYxqcJvcqzcViEQBG1EJL6g6HdLKUEi0nWIWXd3DOKBw3Q6F5QSs/tGBmCUTTtYzAr50A9psj16atxSOwkdU9hXmVv/+u9evPzrCW1N/jh1ZDjD/y3I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766735306; c=relaxed/simple; bh=vp4ldCPjNEsTt71ZudsXgsywYpw+2fQYGOZSsUunlqs=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=mCABRxmbkil7bY8suXo4hasKUb0D/Ifm1Gkgi1ljQt1G+SbZv83iGQRgoafhw/OpqRafIUgYC7nolh7rUmqsrIqIE9WBgLIlH4NESQlqaty1mc0vcCGNcL1lWuXQLUIyhFIC1VrStCRg41rIqC3X3/rs0Csa7qHXw9+qOrTVHP8= 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=209.85.210.69 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-f69.google.com with SMTP id 46e09a7af769-7c75663feaeso7886761a34.3 for ; Thu, 25 Dec 2025 23:48:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766735303; x=1767340103; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=z27dIPa/+L7HFiJAvKZB0jwEwS2hm9uCKx+l0GBO04o=; b=gGyunqvnTlGiNHcpSRAIQDxomRPdljx468N7aqhJIiQzyPBuC0mM7+mB0s3eo15kAz FKPN6dphI3gIXYYP/0dct/qNSY7w2/SW3Hta06ASrkXkBEFpluhSiloO9yL7RLhs3Cge +18mOtYrMYoxs/IkMXPpWYvYQ8304lcjPLyL/tO/2I2zFdQBbzegLZC1JCefQ2nsgAub GxCY8unKNfRR1G/sbJnCwzgKUlC4D5m9qS3L1ElZVQQDK5tmrxodf2vZi09jIwk60+74 2bqIIqA4GB41yeyj9epTbOFxY/Wf4FJLzqULfywaXJSAJpzD9GxFCm8J3xWOkJ1yWwkG KoLQ== X-Forwarded-Encrypted: i=1; AJvYcCWKqjGmhUJwekJQvi4RZgqa6ZzCwgtHe2ZmhQl6FfTnxyvSbZUMrNmpQ8Ic+qqLP9P+fRr9SGsAIkJhMZ8=@vger.kernel.org X-Gm-Message-State: AOJu0YzCLlV3buh1f7SjPQzyzNhAcENX6y2nzK/3l4ATV6/49UCzLZuh 722imM8Fb9SA7Gz4iyw9EiseIH7zm5cilPnm80pJ/wwsPxAXJp05uE+FohWWaAcAJhjjIKh4++6 IciJtSxBp8XNyj/4Y/hKKGCIHzRTiB0rnqdbq/M3jx1nZHi3NWrQmqSucgRM= X-Google-Smtp-Source: AGHT+IGGPnFQEY4a4IX4Bwq7kin/VIhSYb5c7KEivSsSQR9P5PSDEgGv2KfT6qsDgX1tOYM2e9BThSyXku0lRC9DTCWu52ScoU4i Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:428e:b0:659:9a49:90cb with SMTP id 006d021491bc7-65d0eae6598mr4800712eaf.74.1766735303077; Thu, 25 Dec 2025 23:48:23 -0800 (PST) Date: Thu, 25 Dec 2025 23:48:23 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <694e3dc7.050a0220.35954c.0069.GAE@google.com> Subject: [syzbot] Monthly kernfs report (Dec 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, 2 new issues were detected and 0 were fixed. In total, 30 issues are still open and 25 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 2949 Yes possible deadlock in kernfs_iop_getattr https://syzkaller.appspot.com/bug?extid=4bb2305559463e8f6a2a <2> 553 Yes WARNING in kernfs_get (5) https://syzkaller.appspot.com/bug?extid=2f44671e54488d20f0e6 <3> 538 Yes WARNING in kernfs_remove_by_name_ns (3) https://syzkaller.appspot.com/bug?extid=93cbdd0ab421adc5275d <4> 128 Yes INFO: task hung in kernfs_dop_revalidate (4) https://syzkaller.appspot.com/bug?extid=da20d108162166514db6 <5> 117 Yes INFO: task hung in fdget_pos https://syzkaller.appspot.com/bug?extid=0ee1ef35cf7e70ce55d7 <6> 105 No possible deadlock in kernfs_fop_readdir https://syzkaller.appspot.com/bug?extid=8fd10d8928ed1f715290 <7> 102 No possible deadlock in kernfs_fop_write_iter (2) https://syzkaller.appspot.com/bug?extid=1cfd86253864f61b533e <8> 88 Yes INFO: rcu detected stall in sys_unshare (9) https://syzkaller.appspot.com/bug?extid=872bccd9a68c6ba47718 <9> 39 Yes WARNING in kernfs_new_node (3) https://syzkaller.appspot.com/bug?extid=306212936b13e520679d <10> 31 Yes INFO: task hung in kernfs_remove_by_name_ns (2) https://syzkaller.appspot.com/bug?extid=6d5664213a6db9a5a72c --- 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.