general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 475 Comm: syz.2.16 Not tainted 6.1.145-syzkaller-1170000-g87b9d836c3d8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:dir_rename fs/incfs/vfs.c:1410 [inline]
RIP: 0010:dir_rename_wrap+0x167/0x6a0 fs/incfs/vfs.c:91
Code: 89 e7 e8 9c 10 a1 ff 4d 8b 34 24 eb 08 e8 a1 b3 5c ff 45 31 f6 49 83 c6 08 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 6b 10 a1 ff 4d 8b 36 4d 85 f6 0f 84
RSP: 0018:ffffc90000bf7a40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88811d2a7060 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bf7b70 R08: dffffc0000000000 R09: fffff5200017ef39
R10: fffff5200017ef39 R11: 1ffff9200017ef38 R12: ffff888107bb3078
R13: 1ffff9200017ef54 R14: 0000000000000008 R15: ffff88811d2a7000
FS:  00007fa2eb2136c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 0000000116529000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rename+0xbc4/0x10d0 fs/namei.c:4873
 do_renameat2+0x7ed/0xf60 fs/namei.c:5026
 __do_sys_rename fs/namei.c:5072 [inline]
 __se_sys_rename fs/namei.c:5070 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:5070
 x64_sys_call+0x300/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:83
 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: 0033:0x7fa2ea38e9a9
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:00007fa2eb213038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fa2ea5b5fa0 RCX: 00007fa2ea38e9a9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000200000000040
RBP: 00007fa2ea410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa2ea5b5fa0 R15: 00007fff56ef8248
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dir_rename fs/incfs/vfs.c:1410 [inline]
RIP: 0010:dir_rename_wrap+0x167/0x6a0 fs/incfs/vfs.c:91
Code: 89 e7 e8 9c 10 a1 ff 4d 8b 34 24 eb 08 e8 a1 b3 5c ff 45 31 f6 49 83 c6 08 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 6b 10 a1 ff 4d 8b 36 4d 85 f6 0f 84
RSP: 0018:ffffc90000bf7a40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff88811d2a7060 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bf7b70 R08: dffffc0000000000 R09: fffff5200017ef39
R10: fffff5200017ef39 R11: 1ffff9200017ef38 R12: ffff888107bb3078
R13: 1ffff9200017ef54 R14: 0000000000000008 R15: ffff88811d2a7000
FS:  00007fa2eb2136c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff56ef86c8 CR3: 0000000116529000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 e7                	mov    %esp,%edi
   2:	e8 9c 10 a1 ff       	call   0xffa110a3
   7:	4d 8b 34 24          	mov    (%r12),%r14
   b:	eb 08                	jmp    0x15
   d:	e8 a1 b3 5c ff       	call   0xff5cb3b3
  12:	45 31 f6             	xor    %r14d,%r14d
  15:	49 83 c6 08          	add    $0x8,%r14
  19:	4c 89 f0             	mov    %r14,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 6b 10 a1 ff       	call   0xffa110a3
  38:	4d 8b 36             	mov    (%r14),%r14
  3b:	4d 85 f6             	test   %r14,%r14
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84