From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (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 3E6785012BC for ; Mon, 28 Sep 2026 21:44:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790631875; cv=none; b=HUK8Os9Yj/xRDrVJPrJvAUdCPf0pkC++C6masKrrY7RIbNhMMvR50kEoKlMHuerD+sDwc0fXUplQvAz2vtIFTqlsork7lw4gA3IKWFwLyjGySP3OWBlDNJxJtBS50eMz1S0jGVY4z0mENcmr164KMLLhBcJ0js+eiguZencPpUM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790631875; c=relaxed/simple; bh=NaClvdD0/ETuQdJMkmipvGIkUEjPXyjdSiiTPbWCnfQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=hpDBSgsbuYmst/a6ARfYJ3h+3esclyNkLGyI1ncUHebsnor6Gm8xn7w7/Vdp/JxkMqIBc0pYzZacY2EMhikxVOXduUwWI4TtmsMrzTAWKCgDXiurcumnPUN7G+wXQPbO9dPptnU+rK70bscyVyt7GdQYz7KXIU4+g+uo0i6zXVw= 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=209.85.167.199 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 5614622812f47-4ec4d68543eso816284b6e.2 for ; Mon, 28 Sep 2026 14:44:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790631873; x=1791236673; 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=LCFafPM7VamF37q9WZwvbaU7b8Ls5X7AGvGZOLaOOK0=; b=TjqNpqmu3TBu5ySeRE81iPZI1zs39EtF6KvTRFN32Arfq/aSKX+hsaptCb+1Ez4XO1 2ZeWtL0cFukbK2G1I+t/ZaHNoabwJQvWSh7Y7hnha3y4kIJ4ix8c/GNUnTtPIotTZiJh wvW5u2NpmdPp2QSAjlijDnnanFFTgkUNzR9KI1lv6cpNbtYWnK4qtCo3RRt4W9iUPHfZ +LCfTDgYv1hOvwR34A8U1/4gNdx481fcTaqhBsONIsiMQ8TL1I3/yzA/KCe4TJbZQXjf uiz7sNJti9ZIreK++7TFCHuoIb9LeSPlZfcjww4nUNJB45gchUO7cLa73ZT1RJOwv+IB HCcQ== X-Forwarded-Encrypted: i=1; AKwUvBzKclz0zgkcoCLOTPF+8d/Od/NyUDd9HjY4uzedQe1oj43szvibC8ZluUdreTZnc2oMYqB8Ki3OohNa4Q==@vger.kernel.org X-Gm-Message-State: AFuF++nYc0CEE0rkxBxXAjD68SK/bfg0xXOfgmuXbhfpuZC9/nGlixQM MQJm0nZ8BeiWIrELrfzaEBfykmx+cu2kH3cR9v1vIJ01Sgd8LfRwasLviAdSFrUGAGYXuBPlykV By45VV5OaAkdIUoXYBXoNMHve5S7YD5Y5wfOESHUI0YsEyZxPkGjFWscEm8g= Precedence: bulk X-Mailing-List: linux-nilfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:3448:b0:4d6:93c3:3e91 with SMTP id 5614622812f47-4d72f539c15mr13092691b6e.68.1790631873264; Mon, 28 Sep 2026 14:44:33 -0700 (PDT) Date: Mon, 28 Sep 2026 14:44:33 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6abadfc1.69bd487b.a6f8c.0008.GAE@google.com> Subject: [syzbot] [nilfs?] WARNING in nilfs_rmdir (3) From: syzbot To: konishi.ryusuke@gmail.com, linux-kernel@vger.kernel.org, linux-nilfs@vger.kernel.org, slava@dubeyko.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f49a343b305c Merge tag 'pinctrl-v7.3-2' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14834205580000 kernel config: https://syzkaller.appspot.com/x/.config?x=718e346eb0b8f38 dashboard link: https://syzkaller.appspot.com/bug?extid=c388db0347b7fc88fa7a compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/01e174be12f9/disk-f49a343b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/5ec6480f0b31/vmlinux-f49a343b.xz kernel image: https://storage.googleapis.com/syzbot-assets/8e3bdc42332b/bzImage-f49a343b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c388db0347b7fc88fa7a@syzkaller.appspotmail.com NILFS (loop3): deleting nonexistent file (ino=12), 0 ------------[ cut here ]------------ inode->i_nlink == 0 WARNING: fs/inode.c:408 at drop_nlink+0xc5/0x110 fs/inode.c:408, CPU#1: syz-executor/5581 Modules linked in: CPU: 1 UID: 0 PID: 5581 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:drop_nlink+0xc5/0x110 fs/inode.c:408 Code: 50 09 00 00 be 08 00 00 00 e8 67 46 e9 ff f0 48 ff 83 50 09 00 00 5b 41 5c 41 5e 41 5f 5d e9 d2 29 12 09 cc e8 dc 54 7d ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff RSP: 0018:ffffc9000587fc70 EFLAGS: 00010293 RAX: ffffffff82495fd4 RBX: ffff88803f613d78 RCX: ffff888037560000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10053f5d2b R12: 1ffff11007ec27b8 R13: ffff88803f613d78 R14: ffff88803f613dc0 R15: dffffc0000000000 FS: 0000555567408500(0000) GS:ffff888125cc7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f52937858b8 CR3: 0000000058ee4000 CR4: 00000000003526f0 Call Trace: nilfs_rmdir+0x1b4/0x250 fs/nilfs2/namei.c:347 vfs_rmdir+0x3e9/0x6b0 fs/namei.c:5515 filename_rmdir+0x292/0x520 fs/namei.c:5572 __do_sys_unlinkat fs/namei.c:5747 [inline] __se_sys_unlinkat+0x71/0x1a0 fs/namei.c:5740 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5a90c2d277 Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdb3170b78 EFLAGS: 00000207 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f5a90c2d277 RDX: 0000000000000200 RSI: 00007ffdb3171d20 RDI: 00000000ffffff9c RBP: 00007f5a90cc44bb R08: 0000000000008560 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000207 R12: 00007ffdb3171d20 R13: 00007f5a90cc44bb R14: 00000000000296e0 R15: 00007ffdb3173ee0 --- 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. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup