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: 492 Comm: syz.2.16 Not tainted 5.10.238-syzkaller-1007487-g59e9a7228857 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:dir_rename fs/incfs/vfs.c:1394 [inline]
RIP: 0010:dir_rename_wrap+0xf2/0x550 fs/incfs/vfs.c:85
Code: 4c 89 f7 e8 e0 fc a6 ff 4d 8b 36 eb 12 e8 76 0c 6d ff 45 31 f6 49 bc 00 00 00 00 00 fc ff df 49 83 c6 08 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 af fc a6 ff 4d 8b 36 4d 85 f6 0f
RSP: 0018:ffffc90000d27b98 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888117388860 RCX: ffff88811777a780
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000d27c10 R08: dffffc0000000000 R09: fffff520001a4f65
R10: fffff520001a4f65 R11: 1ffff920001a4f64 R12: dffffc0000000000
R13: ffff8881102febb0 R14: 0000000000000008 R15: ffff888117388800
FS:  00007f1c13e1e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 0000000116e7a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rename+0xa26/0xef0 fs/namei.c:4474
 do_renameat2+0x6f8/0xe60 fs/namei.c:4619
 __do_sys_rename fs/namei.c:4670 [inline]
 __se_sys_rename fs/namei.c:4668 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:4668
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f1c143ac169
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:00007f1c13e1e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f1c145c4fa0 RCX: 00007f1c143ac169
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000200000000040
RBP: 00007f1c1442d730 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c145c4fa0 R15: 00007fff1043d248
Modules linked in:
---[ end trace 8d64213ee213c753 ]---
RIP: 0010:dir_rename fs/incfs/vfs.c:1394 [inline]
RIP: 0010:dir_rename_wrap+0xf2/0x550 fs/incfs/vfs.c:85
Code: 4c 89 f7 e8 e0 fc a6 ff 4d 8b 36 eb 12 e8 76 0c 6d ff 45 31 f6 49 bc 00 00 00 00 00 fc ff df 49 83 c6 08 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 af fc a6 ff 4d 8b 36 4d 85 f6 0f
RSP: 0018:ffffc90000d27b98 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888117388860 RCX: ffff88811777a780
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000d27c10 R08: dffffc0000000000 R09: fffff520001a4f65
R10: fffff520001a4f65 R11: 1ffff920001a4f64 R12: dffffc0000000000
R13: ffff8881102febb0 R14: 0000000000000008 R15: ffff888117388800
FS:  00007f1c13e1e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c150f6d60 CR3: 0000000116e7a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 89 f7             	mov    %r14,%rdi
   3:	e8 e0 fc a6 ff       	call   0xffa6fce8
   8:	4d 8b 36             	mov    (%r14),%r14
   b:	eb 12                	jmp    0x1f
   d:	e8 76 0c 6d ff       	call   0xff6d0c88
  12:	45 31 f6             	xor    %r14d,%r14d
  15:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  1c:	fc ff df
  1f:	49 83 c6 08          	add    $0x8,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 af fc a6 ff       	call   0xffa6fce8
  39:	4d 8b 36             	mov    (%r14),%r14
  3c:	4d 85 f6             	test   %r14,%r14
  3f:	0f                   	.byte 0xf