From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 05D662874E3 for ; Fri, 28 Nov 2025 21:21:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764364891; cv=none; b=SFO6pg+tMW6vgWGY2hORHs3hg+ZpQkjRkx/AufkQOYHFnyCB40uTl/tSHKrYuSv3yR0wXVkr+n3rgICHbje6MhxYgB78rze9vQxO250Ukm7v9pRKnFvUmQzbH3bC6dgg1r8kQH6hU10jsjuppOcQO0cgfuREdw6lmgfdVqQB8uw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764364891; c=relaxed/simple; bh=kNzJXuBIGFooK7Srky3cc5zgWDVrNxYsqF8D/wyj1Lo=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=p0WiGbRRQvwK1XkF5GwB/Wxu45xbGKCPdJVLVjlj3h03dmlMSGsPudE+lFUUfY4lwgY3XZdG3RLxWWo+jj4Mzw4qaBxh+Rgl2bGvl1cRCqd0OVVT8UJvX/kqdzn2yqPZfTjNJsZ8V92Au+Egbd2gzbFs+kXsXH33YNjki31Qf3w= 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=209.85.166.70 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-io1-f70.google.com with SMTP id ca18e2360f4ac-948610ae935so140727939f.2 for ; Fri, 28 Nov 2025 13:21:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764364889; x=1764969689; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Y8j/ocDaSnqoVH1Ds2ZGTi/QVUG+TcDyQCcs6zoz1V0=; b=TctO6TIzNBGK+tpy1MamT+wW6e80uynGpNWrBtqbzDnbuAOoPq/x3+XyhW8imR+XLz EGQdnmQPwexuLaiONY4xwGv+9fgq8Exr+HTTgV8Bxy6shzvRT32Tn6tf+dKSJvRkkO+i G4IV/cNZhvvuAmx31ZuPufEPUfU87rq5GinSwgSYWVJ2MFhaCXJEjV+/jQaZpjdxyQz1 KBdB8wKG0MVhRal8Yi60uO1l8HudnQoH7V1wQW0U8f4fVYF6h5YHGJ+Vf6Au65tQuhCT 5wFPjRjhpZ7RQor9nkxCwpfq/WLrC6pieuxIE55hj2ZBjSkrAsi/3tIHnECfe4qbWKPN Vs9g== X-Forwarded-Encrypted: i=1; AJvYcCVo9jYlE/V/w8xICCTxH1Fo1yPi2EQcq62Hv2/lD3cUDFLbrjXxBQ3j039XwHOx/AspG9Nt8VFh7h/f87Y=@vger.kernel.org X-Gm-Message-State: AOJu0YzIiT3rUtNjYres4NdERsWvniyGDI4LqOpLsFwNAydPSf0+aALo AMqepoupqfW7UBB8ehKqvcoYkg60mprwEttzJb2hCiKAPGm4idv19fVrZqxikzDxjVHiRHi4TNM InuJW/5N5AFEsanMmndwblLMvSWlbfO0sOwTiJqKRScyC6CyxIlVLj91Km9I= X-Google-Smtp-Source: AGHT+IHx2Dxl7NXiBixcP7I/5nBWSLW5R4Na9iWp4P+k39VeJlOyxKki4Ra27zAx1vJKwfK42LLIvgsnHH8m1gY7f6dJ1SRhQ++n Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:12c9:b0:434:96ea:ff51 with SMTP id e9e14a558f8ab-435b98d7a3emr259763645ab.34.1764364889214; Fri, 28 Nov 2025 13:21:29 -0800 (PST) Date: Fri, 28 Nov 2025 13:21:29 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <692a1259.a70a0220.d98e3.014d.GAE@google.com> Subject: [syzbot] Monthly ext4 report (Nov 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, 6 new issues were detected and 0 were fixed. In total, 51 issues are still open and 163 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 4656 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <2> 2848 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <3> 2818 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <4> 2141 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <5> 1317 Yes possible deadlock in ext4_writepages (2) https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c <6> 1083 Yes WARNING in ext4_xattr_inode_update_ref (2) https://syzkaller.appspot.com/bug?extid=76916a45d2294b551fd9 <7> 989 Yes WARNING in ext4_xattr_inode_lookup_create https://syzkaller.appspot.com/bug?extid=fe42a669c87e4a980051 <8> 635 No KCSAN: data-race in generic_buffers_fsync_noflush / writeback_single_inode (3) https://syzkaller.appspot.com/bug?extid=35257a2200785ea628f5 <9> 448 Yes INFO: task hung in do_get_write_access (3) https://syzkaller.appspot.com/bug?extid=e7c786ece54bad9d1e43 <10> 277 Yes INFO: task hung in do_renameat2 (2) https://syzkaller.appspot.com/bug?extid=39a12f7473ed8066d2ca --- 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.