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 C1BE82D7394 for ; Tue, 30 Dec 2025 09:52:29 +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=1767088351; cv=none; b=tHOVsM/2zWt2i2xGyljcybVNZwGE5ru9lxFHZX/upc0zPtw7SdTKb3aedlnOU3wEdfGHh9w9qPcXO09w7p9EdOGr4KF07YKcK/KirHCkIDpGJA8Q2vyoD0DECEGeoQ6s9fW96zlUoW64/2cMMMZ1Z9ZNDD//niNvXo376CWDqMg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767088351; c=relaxed/simple; bh=D8uqlwwBNOXH+X+QkO+ZHqcCzeD5V8VgkGv62xd8ID4=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=bvvV+x6vCJhK7zv+gOgzXC5u7K1+jRHn5n57QeeRSbn9QVxDJdF+Bx5u6NjIUPHT2wd1RMt/e2s9Xe8PVoE6U4jEEL4rsE2X/GkK7DotO83akEDjx0t66C1nSJ6AET8TYlEO3ueQVdXqWModF+hSS5znfQSkGsdHYlXofgUF6n4= 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 46e09a7af769-7caf4cdfa28so12905912a34.0 for ; Tue, 30 Dec 2025 01:52:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767088348; x=1767693148; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=+lZ285r7BIURCAQMfiYh+cXAdYu7GLfqweqFjNkAd0g=; b=ONJCLsIuChlqgJFBqaO6oWoKaK3XZf9COjT2y8uXsK/u5ySb3Xdo/PBiESjED14CCN c1tYPYLF+ds916aYoXmgyVT77MZSWw/sgQJx6aMBVQyqUW3veUMrVXQC/W0/orDKMwwf stetnU5NOjAGxRXU2Bdzq/shAQV/n5c1u8XRDXrvlk/zQ+uOJh5n6lPXKU28P1wiM34b sghPSwlzThKTR/GcJ7YkdiJEZ2EDrxbJHgMdx2cJ6FRTmC/erhk3qvQbBZcP9R9KI5SG /v6vKlDiQvo0H6esTFbaeVGkz3qF51N8dOxUiTA0dZ73Zdo9RH9MlbPEJTMbq9cJWwuh 7dCA== X-Forwarded-Encrypted: i=1; AJvYcCV26nO98sGnO6ilMGdkmOa5olTU16v9FRi3EB3mSM1uJMDj2/JLNiL/E4x0L7vnoaJTp81fKNVe8CSrkEY=@vger.kernel.org X-Gm-Message-State: AOJu0YxEJygJVVlqFTsU0ffWtGkIgbF5Qw4yzF83ob4NlG4fVs0atDb7 3q3/8ydbHLa6e06IUWTZYZibJP8LyqJDz3//d4nSV84Pi8U039sATmYTN3SJoIZszymPPoO/MOe HEa4XuqCAATPojRjWebFoGg8TE5VVG2QXMgvghUnhTSYSeK/X3q+D8MeqrS0= X-Google-Smtp-Source: AGHT+IFsZnj5KEpA0GX20v49K+7NPTCWMkVy+T8rwPubZ3M3zVNq1IqvAHL3qWeCj1KPCqoHZU/0NVLDg41eXxg89EygG9Y3DKDT Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:e1d8:0:b0:65c:f991:e7fe with SMTP id 006d021491bc7-65d0e922f95mr10269034eaf.6.1767088348621; Tue, 30 Dec 2025 01:52:28 -0800 (PST) Date: Tue, 30 Dec 2025 01:52:28 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6953a0dc.050a0220.329c0f.0570.GAE@google.com> Subject: [syzbot] Monthly ext4 report (Dec 2025) From: syzbot To: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello ext4 maintainers/developers, This is a 31-day syzbot report for the ext4 subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/ext4 During the period, 2 new issues were detected and 0 were fixed. In total, 51 issues are still open and 166 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 2913 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <2> 2916 Yes WARNING in ext4_xattr_inode_update_ref (2) https://syzkaller.appspot.com/bug?extid=76916a45d2294b551fd9 <3> 2889 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <4> 2588 Yes possible deadlock in ext4_writepages (2) https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c <5> 2150 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <6> 992 Yes WARNING in ext4_xattr_inode_lookup_create https://syzkaller.appspot.com/bug?extid=fe42a669c87e4a980051 <7> 535 Yes possible deadlock in ext4_destroy_inline_data (2) https://syzkaller.appspot.com/bug?extid=bb2455d02bda0b5701e3 <8> 451 Yes INFO: task hung in do_get_write_access (3) https://syzkaller.appspot.com/bug?extid=e7c786ece54bad9d1e43 <9> 420 Yes possible deadlock in do_writepages (2) https://syzkaller.appspot.com/bug?extid=756f498a88797cda9299 <10> 268 Yes possible deadlock in ext4_xattr_inode_lookup_create https://syzkaller.appspot.com/bug?extid=d91a6e2efb07bd3354e9 --- 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.