From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) (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 ABE8F19D093 for ; Sat, 9 May 2026 12:32:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778329954; cv=none; b=VjkijjY4OSyVeQajRdbQIcABxLU8lm91O94Wb9Z7Ztpdw6harhr4uNxXIBy4+9nvCUjQc9i2+mogT/nj9shhE1BBlULugdlHFAwGPU0xV2RKd3lbkjM+W8zpnyiGR63vWkNUMLIO7yb7ncU7xzeRDdSGwec2AY2EAbiQOh+hddU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778329954; c=relaxed/simple; bh=VZtHtJPL+CmlRo0utUwLoHFxPvfs1GG5opBcxMkbnBM=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=etLOYI38fKzVwpwkaKDzFLGQKL66UqsVTCBzEKMDOPGni8qnHg0BLJJZ6jnyaGpUs/hGZPT5f6ED7xzo1xKUo5ppZ9gXjM5OtEVpzMAX/LfuLKVLEShMlkCklcmva7ljl0eDBkZZ/kaOmVUQpFmkXKP+R4Ypa7ZmbslZlb0twnE= 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=209.85.210.71 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-f71.google.com with SMTP id 46e09a7af769-7dbd60b7ecbso5615456a34.1 for ; Sat, 09 May 2026 05:32:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778329952; x=1778934752; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=BZfxlCBCsXqLC01X9BwXRre55Kj8VeyvFqC1qipPd6k=; b=LjsEDL+ihkqbP/B+j9mtkkBXlIknV7LmzV8ys1efTaxz7eYufh5SzHG9R94USsWvmT wh5of7gd6w5ltDVuWTkaDI6+2GPPYo0dw3zjmQ4YPrGVUqSvvp9Kw7cEoRlljbn2Y1Lb KBKK7cv7LBZhYKon3pbjpau7WCh9gD4Z0ylf+seSuDuHifEEV1e//tMW8P2zArPc09BK /QwdofBQYCd/tipEXRNuxtppCqAp+4Ur0yaeCqfmYbpgYL0lPOJwZ/TSun/Sj2UOze5I vqDHRfDsbG0StbSuifKl7V0zUQrHOYT1PjQMqPSga70ObT4EQJxklHo4/SQ14P3gGisy n4Vw== X-Gm-Message-State: AOJu0YzTB33i14QEAiL5+LzRQqTP46qLIaR/g9B08XCvFd8rsdPd5Jtb OVZLeGu8MRwT/IPKeAMFaOVtX/dpCZApF4qE06o7MRShoN6gBH914oNyu5i9A1TyNvzV2BCLIlG nuPYA5qaB4FhC/n3FySUghY87oYm23Cg2XNXkttqmhgfmEKMMO1wci+zkvxs= 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:f034:b0:696:8e8b:2097 with SMTP id 006d021491bc7-69998cb0d2fmr9276444eaf.21.1778329952305; Sat, 09 May 2026 05:32:32 -0700 (PDT) Date: Sat, 09 May 2026 05:32:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69ff2960.a00a0220.1c3806.0007.GAE@google.com> Subject: [syzbot] Monthly ext4 report (May 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, 4 new issues were detected and 0 were fixed. In total, 50 issues are still open and 175 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 7887 Yes WARNING in ext4_xattr_inode_update_ref (2) https://syzkaller.appspot.com/bug?extid=76916a45d2294b551fd9 <2> 7431 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <3> 6043 Yes possible deadlock in ext4_writepages (2) https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c <4> 3089 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <5> 2985 Yes possible deadlock in ext4_destroy_inline_data (2) https://syzkaller.appspot.com/bug?extid=bb2455d02bda0b5701e3 <6> 2947 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <7> 996 Yes WARNING in ext4_xattr_inode_lookup_create https://syzkaller.appspot.com/bug?extid=fe42a669c87e4a980051 <8> 723 Yes possible deadlock in do_writepages (2) https://syzkaller.appspot.com/bug?extid=756f498a88797cda9299 <9> 429 Yes possible deadlock in ext4_evict_inode (5) https://syzkaller.appspot.com/bug?extid=212e8f62790f8e0bc63b <10> 290 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.