From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E133F8F5D for ; Sat, 28 Oct 2023 16:16:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-oi1-f208.google.com (mail-oi1-f208.google.com [209.85.167.208]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E58BEB for ; Sat, 28 Oct 2023 09:16:26 -0700 (PDT) Received: by mail-oi1-f208.google.com with SMTP id 5614622812f47-3b3ebbbdb1aso4722122b6e.2 for ; Sat, 28 Oct 2023 09:16:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698509785; x=1699114585; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=o0hEhIscQ/Xsk7B5flULZwRcurSz+Ug42O5a0ySLsTs=; b=sEPJozeKJHf7MVR6AH/tDZJz4714vExDgZTTM16m41kLtVEtbyZ5P4kArMtIalx0N7 1nNM42QL0i43Kj6jAEaRkqpaf8fyARtXPz//Vkk9JLXcsh8wyjquAb6OuOgw0DP32wcS xjbChq2qtvvJ17p4zQeGFN8hF0lV5MHSUU9EzFESN77JfbK58fjZUlTKmphwOfTD2yi3 y1PFVZ6o1EpzKNOvGvMWYymt/2YDekC6xOogg6tw2erlCiI+mn8joyc3bRryLSDAMAJT VVoa3pGETeJ4SxsYOUEEQMTJi81HBFQ7y1dcKtbiSXAYVd3lfRjpER3zD/mnORooZQ8k W30Q== X-Gm-Message-State: AOJu0YztlMOusj58uTJXWiN1qPIZbdgYEaFa3DU+OQ5Yy8tMbQWDCSV9 zsvZr6EXOizTSMn98yU9fahxp5LAcMNSMW+DhTFj9mrCcJ2H X-Google-Smtp-Source: AGHT+IFL81W1XUVEGZhOjwNRi7Ek/RKHCHPzyX22MBYry7pjh83EVJJZJcgUxHIxLbCA6fuSvi0SvR9ap2iV4nKogIs5BO3nnANq Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1cc:b0:3a4:1e93:8988 with SMTP id x12-20020a05680801cc00b003a41e938988mr1649632oic.10.1698509785426; Sat, 28 Oct 2023 09:16:25 -0700 (PDT) Date: Sat, 28 Oct 2023 09:16:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000068704f0608c92013@google.com> Subject: [syzbot] [ntfs?] kernel BUG in ntfs_prepare_pages_for_non_resident_write (2) From: syzbot To: anton@tuxera.com, linkinjeon@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d88520ad73b7 Merge tag 'pull-nfsd-fix' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16225fcd680000 kernel config: https://syzkaller.appspot.com/x/.config?x=9ee601744db6e780 dashboard link: https://syzkaller.appspot.com/bug?extid=05958f1fac9df0497492 compiler: gcc (Debian 12.2.0-14) 12.2.0, 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/ea9c20c54c8e/disk-d88520ad.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/452b35a0a731/vmlinux-d88520ad.xz kernel image: https://storage.googleapis.com/syzbot-assets/83daea53f9cf/bzImage-d88520ad.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+05958f1fac9df0497492@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/ntfs/file.c:951! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 23700 Comm: syz-executor.4 Not tainted 6.6.0-rc7-syzkaller-00018-gd88520ad73b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:ntfs_prepare_pages_for_non_resident_write+0x42fd/0x5b90 fs/ntfs/file.c:951 Code: 85 12 02 00 00 48 8b 44 24 08 bf ff 0f 00 00 8b 58 2c 89 de e8 54 22 cf fe 81 fb ff 0f 00 00 0f 86 1a e5 ff ff e8 d3 26 cf fe <0f> 0b e8 cc 26 cf fe 0f b6 9c 24 50 01 00 00 31 ff 89 de e8 eb 21 RSP: 0018:ffffc9000356f878 EFLAGS: 00010246 RAX: 0000000000040000 RBX: fffffffffffffffd RCX: ffffc9000bff3000 RDX: 0000000000040000 RSI: ffffffff82b8b35d RDI: 0000000000000007 RBP: 0000000000000101 R08: 0000000000000007 R09: ffffffffffffffff R10: fffffffffffffffd R11: ffffffff81dd8d15 R12: ffff88806a284018 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000040000 FS: 00007ff492baa6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fd34000 CR3: 0000000079e0c000 CR4: 0000000000350ef0 Call Trace: ntfs_perform_write.isra.0+0x63c/0x3170 fs/ntfs/file.c:1844 ntfs_file_write_iter+0xbff/0x1e00 fs/ntfs/file.c:1916 call_write_iter include/linux/fs.h:1956 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x650/0xe40 fs/read_write.c:584 ksys_write+0x12f/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff491e7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff492baa0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff491f9c120 RCX: 00007ff491e7cae9 RDX: 000000000000000b RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 00007ff491ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff491f9c120 R15: 00007ffd5eee77b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ntfs_prepare_pages_for_non_resident_write+0x42fd/0x5b90 fs/ntfs/file.c:951 Code: 85 12 02 00 00 48 8b 44 24 08 bf ff 0f 00 00 8b 58 2c 89 de e8 54 22 cf fe 81 fb ff 0f 00 00 0f 86 1a e5 ff ff e8 d3 26 cf fe <0f> 0b e8 cc 26 cf fe 0f b6 9c 24 50 01 00 00 31 ff 89 de e8 eb 21 RSP: 0018:ffffc9000356f878 EFLAGS: 00010246 RAX: 0000000000040000 RBX: fffffffffffffffd RCX: ffffc9000bff3000 RDX: 0000000000040000 RSI: ffffffff82b8b35d RDI: 0000000000000007 RBP: 0000000000000101 R08: 0000000000000007 R09: ffffffffffffffff R10: fffffffffffffffd R11: ffffffff81dd8d15 R12: ffff88806a284018 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000040000 FS: 00007ff492baa6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020821000 CR3: 0000000079e0c000 CR4: 0000000000350ee0 --- 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 bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup