From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.167.199 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794486812; b=o4R1OjLsuPt5lUq5Tc1w+2+zc8BvbOPPED3PNSDznkihxsqXz43kmnnJAyl2x4Etg0mR lWMqFD44uBhWda/Y+KYIA+nWbrWEQUjz0y2z57/LI0t8KqikPtKzLJGy52gfmCcLGPcAw nE1IJbdNJPJmKYy5ZAC+VjILTVlcsdGRW22cp09GNfwzPkwuSfPPcnC6xIgXR7a2e5MjF JiA+5VbYjW6y3qjMaLw5+F5XuAh7YcKFSHkmF9RpWufpkX7VYId3iL29DERCS5fChN/s+ rNPA4lb4mH9SObC/+LonwcwGeTTrq49nSdXQIzoL03sdhjLwXAVm4zjXoKHurwwwzKQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794486812; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:MIME-Version:X-Received:Date: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias:Message-ID: Subject:From:To:Content-Type; bh=J7e/HQWh9pXQoKTp7kH2sZAez1f8qPQApyE7NMQ7Dcc=; b=scBfoURkYcjaUcuu96VYJt5qqGnFanII8IOHBzMUBLyqNpH05FFlJDJrHQOzhiVf/EM4 EyS7qxEoGWSc4khtVEIe/eqdFuQbOkZ1lTX/THVQ2PryJyUKTh6EasWgloSzqu+xaMryV mAVzJ47CPri3Ys56toKnpMkBD3AWqjpYzKsy/vPADC9g0f6yhneU1h1MNbOXVvEvUj9oL GN6+PUIHLDk9EhkQqMA1G7xVxgn/cqR92/9PfVo7k1Kk6T6KtZFCNobZWGoPbQ5hukKzK Kzvww+zEnExlknTbo6XZXRmr5CySv8Dud/C0QemKMB9kka/1hYib0zcJYEJLhaf1R8A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.167.199 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 602C8606A332 for ; Thu, 12 Nov 2026 12:33:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 602C8606A332 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-oi1-f199.google.com with SMTP id 5614622812f47-568249fbf5eso5364299b6e.2 for ; Thu, 12 Nov 2026 04:33:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794486811; x=1795091611; 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=J7e/HQWh9pXQoKTp7kH2sZAez1f8qPQApyE7NMQ7Dcc=; b=KHRAo+23IT4CiNvQ3JOedn7Stje/qQhuPn0XUbENckIGGw+bhumYCiPBPcJMVpZDKV WHyemCBoPEgSrzTcu+VEcY66ITbWqg9GZd62NaQWBUZyPwmM9e9QfMKZ51NgR1zw90OZ cIT4hIWOAPQQaUwbmREPi980vfm0xGartSNeBvrB3TZ1roWkGyeE3e0/f4KVia+bgnoJ Z9Gr4KmCU50zje0udvbXPjKWZcpbfQA29M0samqDWH/YJRhk8s9fe9LSGHSM8TOwaiq/ Qh+iPEHWrmBaHqOpi15b9++ksL8t0mibudwZtEVZuubYBCzv1/sy3pOtNQCoXflZeAT2 QwbA== X-Forwarded-Encrypted: i=1; AL+hErGAh1mH4S3Sy2ShE9D4K4CXemPs3zssST7vLBolHoXRJyRP3WDpjyVQiJjaKb0ziLOnLIgI+UNmIY10UlE=@vger.kernel.org X-Gm-Message-State: APuU4Z/HXoaUWtPkNM9Yyvze88FrITQbQorZO+rBFn+TTwjrKZaezn7p rta06Z07TNX+CrgIENKTMyXGWSxO0lDzmepICqBb58Y44nzJwN6Muj3SHAhWhkd2Mg4zWwndKyO Ns8wVeVQY3QlwD6nl/feKcbcmJ83tvyz6EgN2g36NP8nyIr+UMeN9lnXHmGg= X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:4fe3:b0:556:82f5:5aaf with SMTP id 5614622812f47-56b97d11f1amr5246723b6e.49.1794486811208; Thu, 12 Nov 2026 04:33:31 -0800 (PST) Date: Thu, 12 Nov 2026 04:33:31 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6af5b21b.0f67a820.5686f.00e7.GAE@google.com> Subject: [syzbot] Monthly ext4 report (Nov 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 1 were fixed. In total, 29 issues are still open and 189 have already been fixed. There are also 13 low-priority issues. Some of the still happening issues: Ref Crashes Repro Title <1> 8189 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <2> 6060 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <3> 588 Yes WARNING in ext4_mb_load_buddy_gfp https://syzkaller.appspot.com/bug?extid=fd3f70a4509fca8c265d <4> 358 Yes WARNING in ext4_iomap_begin (3) https://syzkaller.appspot.com/bug?extid=626aa13bf52efc3aa86e <5> 3 Yes KASAN: use-after-free Read in xattr_find_entry (2) https://syzkaller.appspot.com/bug?extid=fb32afec111a7d61b939 <6> 1 Yes KASAN: use-after-free Read in ext4_read_inline_data (2) https://syzkaller.appspot.com/bug?extid=085a394c92518a04fd09 <7> 1 Yes memory leak in __pcs_replace_full_main https://syzkaller.appspot.com/bug?extid=4d078516add5f4f12cea <8> 545 Yes kernel BUG in ext4_mb_use_inode_pa (2) https://syzkaller.appspot.com/bug?extid=d79019213609e7056a19 <9> 79 Yes INFO: rcu detected stall in wb_workfn (4) https://syzkaller.appspot.com/bug?extid=5b4f4f81240931b16844 --- 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.