ntfs: (device loop6): ntfs_ucstonls(): Unicode name contains characters that cannot be converted to character set cp932.  You might want to try to use the mount option nls=utf8.
general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 4580 Comm: syz-executor Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:traverse_mounts fs/namei.c:1378 [inline]
RIP: 0010:handle_mounts fs/namei.c:1498 [inline]
RIP: 0010:step_into+0x12e/0xd00 fs/namei.c:1806
Code: 4c 8b 74 24 18 c6 44 24 7f 00 43 0f b6 44 25 00 84 c0 0f 85 6c 0a 00 00 45 8b 36 4c 8b bc 24 a8 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 6b 0a 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc90002e0fae0 EFLAGS: 00010206
RAX: 0000000000000003 RBX: ffffc90002e0fcc0 RCX: ffff88802116d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002e0fbe8 R08: 0000000000000000 R09: ffffed100959b081
R10: ffffed100959b081 R11: 1ffff1100959b080 R12: dffffc0000000000
R13: 1ffff920005c1f9f R14: 0000000000000080 R15: 0000000000000018
FS:  000055557dc54500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557dc7f648 CR3: 00000000728e5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x169/0x440 fs/namei.c:2455
 filename_lookup+0x1e2/0x4f0 fs/namei.c:2484
 user_path_at_empty+0x40/0x190 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 ksys_umount fs/namespace.c:1781 [inline]
 __do_sys_umount fs/namespace.c:1789 [inline]
 __se_sys_umount fs/namespace.c:1787 [inline]
 __x64_sys_umount+0xf1/0x160 fs/namespace.c:1787
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff4a8c0cc97
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffccebdfc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff4a8c0cc97
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccebdfce0
RBP: 00007ffccebdfce0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffccebe0dd0
R13: 00007ff4a8c8d89d R14: 000055557dc544a8 R15: 00007ffccebe2f90
 </TASK>
Modules linked in:
---[ end trace 26ac40960105e041 ]---
RIP: 0010:traverse_mounts fs/namei.c:1378 [inline]
RIP: 0010:handle_mounts fs/namei.c:1498 [inline]
RIP: 0010:step_into+0x12e/0xd00 fs/namei.c:1806
Code: 4c 8b 74 24 18 c6 44 24 7f 00 43 0f b6 44 25 00 84 c0 0f 85 6c 0a 00 00 45 8b 36 4c 8b bc 24 a8 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 6b 0a 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc90002e0fae0 EFLAGS: 00010206
RAX: 0000000000000003 RBX: ffffc90002e0fcc0 RCX: ffff88802116d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002e0fbe8 R08: 0000000000000000 R09: ffffed100959b081
R10: ffffed100959b081 R11: 1ffff1100959b080 R12: dffffc0000000000
R13: 1ffff920005c1f9f R14: 0000000000000080 R15: 0000000000000018
FS:  000055557dc54500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d6fa3e7950 CR3: 00000000728e5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 8b 74 24 18       	mov    0x18(%rsp),%r14
   5:	c6 44 24 7f 00       	movb   $0x0,0x7f(%rsp)
   a:	43 0f b6 44 25 00    	movzbl 0x0(%r13,%r12,1),%eax
  10:	84 c0                	test   %al,%al
  12:	0f 85 6c 0a 00 00    	jne    0xa84
  18:	45 8b 36             	mov    (%r14),%r14d
  1b:	4c 8b bc 24 a8 00 00 	mov    0xa8(%rsp),%r15
  22:	00
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 6b 0a 00 00    	jne    0xaa2
  37:	45 8b 3f             	mov    (%r15),%r15d
  3a:	44 89 fe             	mov    %r15d,%esi
  3d:	81                   	.byte 0x81
  3e:	e6 00                	out    %al,$0x0