From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) (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 4274637AA75 for ; Fri, 30 Jan 2026 12:35:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769776531; cv=none; b=MKCsJQ9m+XJoLudC0jjGF2p9HYNo8ZbAkphtrxvD4vgWuP+6XDp59GIf/xUIAQDS929lCJOUPZIvszaxLdB6nRGRcfzbCTPXnV7LPhqzMp9bwF0JjqAlGmXddfJ9eldYcw2fVQ6ZieVI+wK/eNHO9bbH4o1PMevm76yVbIjlxco= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769776531; c=relaxed/simple; bh=PscRmNunkBaYuaVYEFYPiKzkQypEHKlPCoaLkkuJO9Q=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=SmV1QCMwApay4a+iD/vNFKaNstEhASG3qN0DaqZ8IOeGNwfUY2fSx2quj4aGxbn54wT6oFhl3FQ4JZ0d64ywIjm3LksR4sYJz7bpvk/dgstWdVKgHWXlROMfr64AzjLpz9PQB4kg37aXIaS8OgNizBCpw5Syy5CzEFiklv51fPA= 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=209.85.160.72 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-oa1-f72.google.com with SMTP id 586e51a60fabf-40805ab764fso5701614fac.1 for ; Fri, 30 Jan 2026 04:35:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769776529; x=1770381329; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=3pVTyIgeV3CQsxtVuDjAqiU3vlVZFnwMbx196G3N8EY=; b=RxW+0DeD9fM+7rP95iUk2JN4WgSvjDFMKOLsrd+inq6Ug31XoktkXfQxsXrVKmszTB bnYVvKt9zSSFiO4nSK9LCQy+h/3d49c1isWJ7bJ21SRW3aR85Ew+alhy4ClRzAPs6IiU 06K8ZEJoZ0UYCCVe1E/tNHIde50JUFi6QpuMsQFsFwn9p1VTVrqSvbVySO0OnGgkQrAJ /FAmIwIZBuJvKHLXztBxN68yOc6509I+H8xYYr6UdbIXmZwFq5BhxsG4z2cr2JKNsMLW Fr59+H5x2J9KhCI62DGF7JfetcQqQv5vO7EpPo79jbwG9y0nxxHanqrbOQRmqfgS/j2T wChw== X-Forwarded-Encrypted: i=1; AJvYcCVCfSURbF6F1nuJoD+6QAh9LEbvNM8rFlcHxKcKsK4RO+4/oZyu5dhNYoFA5PGTcufjBFJ5ILWcCV3Z/LE=@vger.kernel.org X-Gm-Message-State: AOJu0YzZ2ITN68RzIrVU6sUnMDIqJXCaTXgXgpBADlKbNUiCw1F5pB42 aG8DV5erQCRn+4DK00Bf1Zop7XTtXu2gVsT2tbGmmjgd7eg5m+Ag1OldGekSc0ZOk61Pqf41IDX /E46DR1vzVIeX4FXsn3KTap3/lTKmKTtJtufJsMPI+sGsYQnyUhBJjTVS5BI= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:4588:b0:662:d4e1:6995 with SMTP id 006d021491bc7-6630f3db3dfmr1002761eaf.78.1769776529038; Fri, 30 Jan 2026 04:35:29 -0800 (PST) Date: Fri, 30 Jan 2026 04:35:29 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <697ca591.a70a0220.6f39b.0241.GAE@google.com> Subject: [syzbot] Monthly ext4 report (Jan 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, 50 issues are still open and 170 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 6265 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <2> 4238 Yes WARNING in ext4_xattr_inode_update_ref (2) https://syzkaller.appspot.com/bug?extid=76916a45d2294b551fd9 <3> 3407 Yes possible deadlock in ext4_writepages (2) https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c <4> 2927 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <5> 2160 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <6> 1014 Yes possible deadlock in ext4_destroy_inline_data (2) https://syzkaller.appspot.com/bug?extid=bb2455d02bda0b5701e3 <7> 993 Yes WARNING in ext4_xattr_inode_lookup_create https://syzkaller.appspot.com/bug?extid=fe42a669c87e4a980051 <8> 497 Yes possible deadlock in do_writepages (2) https://syzkaller.appspot.com/bug?extid=756f498a88797cda9299 <9> 462 Yes INFO: task hung in do_get_write_access (3) https://syzkaller.appspot.com/bug?extid=e7c786ece54bad9d1e43 <10> 273 Yes kernel BUG in ext4_mb_use_inode_pa (2) https://syzkaller.appspot.com/bug?extid=d79019213609e7056a19 --- 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.