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 27BAB1BDAA3 for ; Tue, 1 Oct 2024 08:09:28 +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=1727770170; cv=none; b=s1IZm0V36LolEK0jpWLqbmng8m3buUMomTL/2zZ5kcgCqVTyPu5NskKPStT8vfMZCmNXCtWPI/s5H/QCfCSOZ0KG7WLxszO56sv1syRAyoyr84lYPMvmqkxaJBWUvPku2DmA5P1Tx5BFLrzlwPJowgRAS6VkzNGmu/6Wftm0Prs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727770170; c=relaxed/simple; bh=EbGBpRHnvl6IvzXCA9jp3xcrqQjFWk+0/sKdxxv7f5A=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=qtzWkT9zKF1kTKKqN4CfeCmZqsQf1YP4UViUAnE4PMqW444VcUkxcUIVYA44Jcchaj+LMy1woB84oozxqyA4FFcVvmAhz4peJlfd0+0eSU6IOX3G5p3J/wqIB+5GFOhlp1dw0Af1KvYTfSjlp/oIe5hYNWN84XsIercyIGN4P/k= 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-8324396d0abso477852539f.0 for ; Tue, 01 Oct 2024 01:09:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727770168; x=1728374968; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=C7V6fRL7UjAsnDR6dRn4CiYM7Ws9Jq2H2tMuf/ISe00=; b=NzF4Y/KPCM7TeEM/Cima9IQJgpYwPDzEfwj3XOC/pyGlxksxW67TABLbjJ/JW/HI+b ttgqqfq5AA4SbQkhH14XqpabB6x/sc1YSaeorzL8UpVdGDbtV2UVBEjGstixGt7F7lW9 vbEDgAQw/XUjJ04ibwMBzc8xX2/gUL43rLXrCTLvuoPdU6Le6jq9hynHRnt2b69IMBzB oxBwOGoDvo1cCb/OirpSw3nzDzMRyXgGw8SKld1ZMnIBKIkHdYLN3w5wbEYJweePfENf siE32WO7xjPGWst5gL92BxFUMuvJq0oyqJ4xPAA/RXfVQeWUwd7NrPtMg7GM8c3mAZwO MhbQ== X-Forwarded-Encrypted: i=1; AJvYcCUWMoL0TPWQsc3czpWO4oQ+QujfA/9j6g3tqQmMBcpbF+tZDU0f8iPedTzSyB3SSQQlpz+ayGIMuat39+o=@vger.kernel.org X-Gm-Message-State: AOJu0YwWO44jRM1Zafl5vQhymlRZAicpLSTc9DYxRr2Tu75oPzKEeNGy GATVXL0HQBeYcsZxF5u87bHpN2/1M18W0Ixaipb/+PJz+YHGPpkAhZf0hUukgLOFGF9dExPeYP4 iuZ0bDRfhAGAd5gv4L21FFoqfcxdRZy/ETrfsud1slQsdyCLH+fMbvaU= X-Google-Smtp-Source: AGHT+IHvwPpOTbWnjjgHECUbOyyXGi3Q2t54HQTs8Eu3KoRGFooAKRrP2mQnEePL+pKAldgpmK4DT0+7ZaCkcLIxFzgM/a4dIHLp Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:184d:b0:39f:53b3:ca63 with SMTP id e9e14a558f8ab-3a345155676mr109902515ab.3.1727770168249; Tue, 01 Oct 2024 01:09:28 -0700 (PDT) Date: Tue, 01 Oct 2024 01:09:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66fbae38.050a0220.6bad9.0051.GAE@google.com> Subject: [syzbot] [fuse?] WARNING in fuse_write_file_get (2) From: syzbot To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: cea5425829f7 Add linux-next specific files for 20240930 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=161c439f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=41a28720ed564c6a dashboard link: https://syzkaller.appspot.com/bug?extid=f69287fa1bf99c7c3321 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/566995596f19/disk-cea54258.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e7c506c1c71d/vmlinux-cea54258.xz kernel image: https://storage.googleapis.com/syzbot-assets/7fcb4468b8c0/bzImage-cea54258.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f69287fa1bf99c7c3321@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 12 at fs/fuse/file.c:1989 fuse_write_file_get+0xb8/0xf0 fs/fuse/file.c:1989 Modules linked in: CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: writeback wb_workfn (flush-0:57) RIP: 0010:fuse_write_file_get+0xb8/0xf0 fs/fuse/file.c:1989 Code: ff ff ff ff e8 29 d2 7b fe 09 dd 78 3c e8 e0 cd 7b fe 4c 89 f7 e8 78 79 b8 08 eb 11 e8 d1 cd 7b fe 4c 89 f7 e8 69 79 b8 08 90 <0f> 0b 90 4c 89 e0 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 b0 cd RSP: 0018:ffffc900001170d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88805dbe4610 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffffc90000117210 R08: ffff88805dbe477b R09: 1ffff1100bb7c8ef R10: dffffc0000000000 R11: ffffed100bb7c8f0 R12: 0000000000000000 R13: 1ffff92000022e28 R14: ffff88805dbe4778 R15: ffff88805dbe4140 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c302213 CR3: 0000000067444000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_writepages+0x259/0x4f0 fs/fuse/file.c:2368 do_writepages+0x35d/0x870 mm/page-writeback.c:2683 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1658 writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1954 wb_writeback+0x41b/0xbd0 fs/fs-writeback.c:2134 wb_do_writeback fs/fs-writeback.c:2281 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2321 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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