ntfs3: loop0: ino=1b, "file0" ntfs_rename
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 5946 Comm: syz.0.17 Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:pick_link+0x52d/0xdd0 fs/namei.c:1813
Code: cd ec ff 4d 8b 2e 4d 85 ed 0f 84 a3 00 00 00 e8 09 87 95 ff 49 bf 00 00 00 00 00 fc ff df 4c 8b 74 24 20 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 12 06 00 00 41 0f b6 6d 00 bf 2f 00 00
RSP: 0018:ffffc90003397848 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90003397968 RCX: ffff888078330000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: 1ffff92000672f93
R13: 0000000000000002 R14: ffffc90003397cc0 R15: dffffc0000000000
FS:  00005555613db500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc26c5e2000 CR3: 00000000762e9000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 step_into+0xc3d/0xf10 fs/namei.c:1872
 open_last_lookups fs/namei.c:3579 [inline]
 path_openat+0x16bb/0x3190 fs/namei.c:3786
 do_filp_open+0x1c5/0x3d0 fs/namei.c:3816
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
 do_sys_open fs/open.c:1434 [inline]
 __do_sys_open fs/open.c:1442 [inline]
 __se_sys_open fs/open.c:1438 [inline]
 __x64_sys_open+0x11f/0x140 fs/open.c:1438
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f17f518ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe09909488 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f17f53b5fa0 RCX: 00007f17f518ebe9
RDX: 0000000000000000 RSI: 0000000000048500 RDI: 0000200000000a80
RBP: 00007f17f5211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f17f53b5fa0 R14: 00007f17f53b5fa0 R15: 0000000000000003
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pick_link+0x52d/0xdd0 fs/namei.c:1813
Code: cd ec ff 4d 8b 2e 4d 85 ed 0f 84 a3 00 00 00 e8 09 87 95 ff 49 bf 00 00 00 00 00 fc ff df 4c 8b 74 24 20 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 12 06 00 00 41 0f b6 6d 00 bf 2f 00 00
RSP: 0018:ffffc90003397848 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90003397968 RCX: ffff888078330000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: 1ffff92000672f93
R13: 0000000000000002 R14: ffffc90003397cc0 R15: dffffc0000000000
FS:  00005555613db500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc26c5e2000 CR3: 00000000762e9000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
   0:	cd ec                	int    $0xec
   2:	ff 4d 8b             	decl   -0x75(%rbp)
   5:	2e 4d 85 ed          	cs test %r13,%r13
   9:	0f 84 a3 00 00 00    	je     0xb2
   f:	e8 09 87 95 ff       	call   0xff95871d
  14:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  1b:	fc ff df
  1e:	4c 8b 74 24 20       	mov    0x20(%rsp),%r14
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 12 06 00 00    	jne    0x649
  37:	41 0f b6 6d 00       	movzbl 0x0(%r13),%ebp
  3c:	bf                   	.byte 0xbf
  3d:	2f                   	(bad)