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UBSAN: shift-out-of-bounds in ntfs_fill_super

Status: upstream: reported C repro on 2023/03/10 12:52
Bug presence: origin:lts-only
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+b40fb1604bbe241ef320@syzkaller.appspotmail.com
First crash: 862d, last: 30d
Fix commit to backport (bisect log) :
tree: upstream
commit 91a4b1ee78cb100b19b70f077c247f211110348f
Author: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Fri Jun 30 12:25:25 2023 +0000

  fs/ntfs3: Fix shift-out-of-bounds in ntfs_fill_super

  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/03/13 linux-6.1.y (ToT) 6ae7ac5c4251 C [report] UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/13 upstream (ToT) b7f94fcf5546 C Didn't crash
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream UBSAN: shift-out-of-bounds in ntfs_fill_super (2) ntfs3 -1 C error 5716 602d 872d 25/29 fixed on 2023/12/21 03:45
linux-5.15 UBSAN: shift-out-of-bounds in ntfs_fill_super missing-backport origin:lts-only -1 C done 2641 22h48m 864d 0/3 upstream: reported C repro on 2023/03/08 09:55
upstream UBSAN: shift-out-of-bounds in ntfs_fill_super ntfs3 -1 C done 3643 876d 1185d 22/29 fixed on 2023/02/24 13:50
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2025/03/20 11:07 7h47m fix candidate upstream OK (1) job log
2023/12/08 05:27 1h29m fix candidate upstream OK (0) job log

Sample crash report:
loop0: detected capacity change from 0 to 4096
================================================================================
UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:736:22
shift exponent 127 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 4250 Comm: syz-executor372 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 ubsan_epilogue+0xa/0x30 lib/ubsan.c:151
 __ubsan_handle_shift_out_of_bounds+0x37c/0x400 lib/ubsan.c:321
 ntfs_init_from_boot fs/ntfs3/super.c:736 [inline]
 ntfs_fill_super+0x24e5/0x3f30 fs/ntfs3/super.c:959
 get_tree_bdev+0x3f1/0x610 fs/super.c:1366
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3054
 do_mount fs/namespace.c:3397 [inline]
 __do_sys_mount fs/namespace.c:3605 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3582
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f63c1b0ad4a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdc47fa298 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffdc47fa2b0 RCX: 00007f63c1b0ad4a
RDX: 0000200000000040 RSI: 0000200000000000 RDI: 00007ffdc47fa2b0
RBP: 0000200000000040 R08: 00007ffdc47fa2f0 R09: 000000000001f233
R10: 0000000000000800 R11: 0000000000000286 R12: 0000200000000000
R13: 00007ffdc47fa2f0 R14: 0000000000000003 R15: 0000000000000800
 </TASK>
================================================================================

Crashes (2585):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/16 09:27 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/05/10 21:10 linux-6.1.y 02b72ccb5f9d 77908e5f .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/09 15:27 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/11/29 10:36 linux-6.1.y e4d90d63d385 5df23865 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/08/19 02:14 linux-6.1.y 117ac406ba90 dbc93b08 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/08/19 01:50 linux-6.1.y 117ac406ba90 dbc93b08 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/04/20 23:22 linux-6.1.y 6741e066ec76 af24b050 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/04/16 14:46 linux-6.1.y cd5d98c0556c 0d592ce4 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/04/16 13:16 linux-6.1.y cd5d98c0556c 0d592ce4 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/01/21 19:40 linux-6.1.y 8fd7f4462453 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2024/01/13 21:52 linux-6.1.y 7c58bfa711cb 551587c1 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/12/25 04:27 linux-6.1.y 4aa6747d9352 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/09/15 20:36 linux-6.1.y 09045dae0d90 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/05/07 02:38 linux-6.1.y ca48fc16c493 90c93c40 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/06/04 10:58 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/06/04 06:47 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/05/04 23:11 linux-6.1.y ca48fc16c493 518a39a6 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/26 06:45 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/09 04:59 linux-6.1.y 3dfebb87d7eb a775275d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/27 04:23 linux-6.1.y 344a09659766 20510e88 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/10 08:46 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/09 10:33 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/03 12:06 linux-6.1.y 3a8358583626 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/01 00:39 linux-6.1.y 3a8358583626 67cf5345 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/26 18:02 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/20 03:07 linux-6.1.y 0cbb5f65e52f b257a9b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/03 19:33 linux-6.1.y 0cbb5f65e52f a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/06/20 02:34 linux-6.1.y 58485ff1a74f ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/06/16 05:19 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/05/22 22:00 linux-6.1.y da3c5173c55f 0919b50b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/05/07 11:34 linux-6.1.y ac7079a42ea5 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/05/03 18:29 linux-6.1.y b6736e03756f b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/05/03 10:24 linux-6.1.y b6736e03756f b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/28 18:37 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/27 08:28 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/17 01:08 linux-6.1.y 420102835862 a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/14 14:56 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/13 23:00 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/13 20:43 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/09 17:33 linux-6.1.y 3dfebb87d7eb 47d015b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/04/02 05:32 linux-6.1.y 8e60a714ba3b b8645499 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/28 00:30 linux-6.1.y 344a09659766 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/22 23:57 linux-6.1.y 344a09659766 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/16 13:37 linux-6.1.y 344a09659766 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/10 07:34 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/09 09:03 linux-6.1.y 6ae7ac5c4251 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/06 22:33 linux-6.1.y 3a8358583626 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/03/03 12:40 linux-6.1.y 3a8358583626 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/23 05:38 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/22 01:33 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/19 23:06 linux-6.1.y 0cbb5f65e52f b257a9b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/16 18:40 linux-6.1.y 0cbb5f65e52f 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/16 00:10 linux-6.1.y 0cbb5f65e52f 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/07 03:59 linux-6.1.y 0cbb5f65e52f 8002dd28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/06 14:02 linux-6.1.y 0cbb5f65e52f 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/03 18:46 linux-6.1.y 0cbb5f65e52f a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/02/02 19:17 linux-6.1.y 0cbb5f65e52f 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/01/23 14:12 linux-6.1.y f4f677285b38 a44b0418 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/01/19 03:31 linux-6.1.y 60ceadf9247e f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/01/15 01:00 linux-6.1.y c63962be84ef f310a27d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2025/01/12 17:17 linux-6.1.y c63962be84ef 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
2023/03/10 12:52 linux-6.1.y 8a923980a190 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: shift-out-of-bounds in ntfs_fill_super
* Struck through repros no longer work on HEAD.