From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) (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 C9A032472B8 for ; Tue, 11 Aug 2026 04:32:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786422749; cv=none; b=r0J0z+UrRLlElWcLo4X7Awke6KxbBpnIO3RrjYqH4LE2mXARNfjEZ8F2IWfqH1wS9/5aL9cz7od5M78G0UiE2KB3OVYyKp5hM7Z93/KBgrYnXNN1oLo1Jclis9ZuIUBznyYW7JK9nWRPTkEMD3GnniKh7qN0VAGgXGZIMfSZhMo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786422749; c=relaxed/simple; bh=YmTU0cuMrz6q1nj4v3rJi+xBLsvhVgrxATKUYqY4x1A=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=c8o9d8Zwxof5FIbRFLrWwoq61wZ1wprdm0yjebC+0+GUEzQ2M2Rmjyi1Dg5gTLxOkxkk17dnC7q+3KBHZDkdQvg4f2R/xWQdiwC+MHXt6STDi1UaHEH6qi90ERaGpLrFaMSCprqiICIsguVF2aNhBlnVqfP39/21oN1ToqkstGg= 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=209.85.161.70 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-oo1-f70.google.com with SMTP id 006d021491bc7-6a0f261aeb6so2855262eaf.3 for ; Mon, 10 Aug 2026 21:32:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786422746; x=1787027546; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=GDtETnbSqyF0P4E2VpKMycx6tqmfKVV7fNJad8d02Fo=; b=Oi8BsrWsfAuvLLp+eFN32DuaZn7weMmsDTfMmq7z8VGMYvoQAWP/UnxHMsKJepCEdm Drc01c6WBhGLG9MPDucnANbyfgPekH4h9Nc3HdLgeRlj5o1cMvCUJY/vDYkoY/7wyFU+ lGM11zb/si37xWvXqYENMEJ2PKVNcCy4AArulfMd8DIkNH2u6Y0M8YkGbNMtB/l5nN0f z7aGScw+iuQim20d5LzehuwwztCRDfnFWi4T1lZ/8qZy349RP6EQr9g3vNWg+xJFdutg Jx/2ui/jIxIIDApabgvE7DDzJ9N48oj/uCpVwADTuzXy1Zkq5hn0nzyG8wYjqJf6m2fY rMig== X-Gm-Message-State: AOJu0YyUBhJV3tLwjMUmABMEKOltA9KdstAbwtHmCZ4ZxBWnjvVz476z gDswaLBCuEQrK38mlBONYDgdxpkQssMT4+QQkv3jiv+/GJcPmMAMCS4vM5bM2f32VO6ImejTsOs r1kfmxtCiAi7xL1CJvq/0lkWXCyc451WnXl512qO5SMBj1x3h/CfLqUktnko= Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:308a:b0:6b0:4e2b:17d0 with SMTP id 006d021491bc7-6b0a3244865mr142728eaf.30.1786422746681; Mon, 10 Aug 2026 21:32:26 -0700 (PDT) Date: Mon, 10 Aug 2026 21:32:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a7aa5da.9c11d2ce.289b96.00fb.GAE@google.com> Subject: [syzbot] Monthly ext4 report (Aug 2026) 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, 41 issues are still open and 179 have already been fixed. There are also 8 low-priority issues. Some of the still happening issues: Ref Crashes Repro Title <1> 19578 Yes possible deadlock in ext4_writepages (2) https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c <2> 7874 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <3> 3863 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <4> 2206 Yes possible deadlock in ext4_xattr_set_handle (7) https://syzkaller.appspot.com/bug?extid=f0b58a1f5075a90dd9a5 <5> 147 Yes WARNING in ext4_iomap_begin (3) https://syzkaller.appspot.com/bug?extid=626aa13bf52efc3aa86e <6> 132 Yes INFO: task hung in sb_start_write (2) https://syzkaller.appspot.com/bug?extid=b3fba2e269970207b61d <7> 43 No possible deadlock in evict (4) https://syzkaller.appspot.com/bug?extid=a30a00d3e694e4fa1315 <8> 21 No WARNING in jbd2_journal_dirty_metadata (3) https://syzkaller.appspot.com/bug?extid=a5f824f1c49dd97fcff0 <9> 21 Yes kernel BUG in ext4_write_inline_data (5) https://syzkaller.appspot.com/bug?extid=53c8bd6136cfbe85197e <10> 11 Yes INFO: task hung in block_read_full_folio (3) https://syzkaller.appspot.com/bug?extid=03afbb29537f0336b7ad --- 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.