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: 479 Comm: syz-executor.0 Not tainted 5.10.240-syzkaller-1008085-g1154f779f3f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:dir_rename fs/incfs/vfs.c:1403 [inline]
RIP: 0010:dir_rename_wrap+0x1dd/0x550 fs/incfs/vfs.c:85
Code: f0 ff ff ff 48 8b 5d b0 e9 3c 03 00 00 e8 6b 07 6d 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 c5 f6 a6 ff 4d 8b 36 48 8b 45 c0 48
RSP: 0018:ffffc9000342fb78 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888114904818 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000342fbf0 R08: dffffc0000000000 R09: fffff52000685f61
R10: fffff52000685f61 R11: 1ffff92000685f60 R12: 1ffff11022920903
R13: ffff88810fe88ee0 R14: 0000000000000008 R15: ffff888114904828
FS:  00007f1e3c4c66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e3c4a5d58 CR3: 00000001147b9000 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_renameat2 fs/namei.c:4657 [inline]
 __se_sys_renameat2 fs/namei.c:4654 [inline]
 __x64_sys_renameat2+0xd8/0xf0 fs/namei.c:4654
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f1e3c943ee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1e3c4c60c8 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007f1e3ca72f80 RCX: 00007f1e3c943ee9
RDX: 0000000000000004 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f1e3c99049e R08: 0000000000000002 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1e3ca72f80 R15: 00007ffe9ac74468
Modules linked in:
---[ end trace a798dee630dd95eb ]---
RIP: 0010:dir_rename fs/incfs/vfs.c:1403 [inline]
RIP: 0010:dir_rename_wrap+0x1dd/0x550 fs/incfs/vfs.c:85
Code: f0 ff ff ff 48 8b 5d b0 e9 3c 03 00 00 e8 6b 07 6d 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 c5 f6 a6 ff 4d 8b 36 48 8b 45 c0 48
RSP: 0018:ffffc9000342fb78 EFLAGS: 00010202

RAX: 0000000000000001 RBX: ffff888114904818 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000342fbf0 R08: dffffc0000000000 R09: fffff52000685f61
R10: fffff52000685f61 R11: 1ffff92000685f60 R12: 1ffff11022920903
R13: ffff88810fe88ee0 R14: 0000000000000008 R15: ffff888114904828
FS:  00007f1e3c4c66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e3c4a5d58 CR3: 00000001147b9000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	ff 48 8b             	decl   -0x75(%rax)
   3:	5d                   	pop    %rbp
   4:	b0 e9                	mov    $0xe9,%al
   6:	3c 03                	cmp    $0x3,%al
   8:	00 00                	add    %al,(%rax)
   a:	e8 6b 07 6d ff       	call   0xff6d077a
   f:	45 31 f6             	xor    %r14d,%r14d
  12:	49 83 c6 08          	add    $0x8,%r14
  16:	4c 89 f0             	mov    %r14,%rax
  19:	48 c1 e8 03          	shr    $0x3,%rax
  1d:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  24:	fc ff df
* 27:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2b:	74 08                	je     0x35
  2d:	4c 89 f7             	mov    %r14,%rdi
  30:	e8 c5 f6 a6 ff       	call   0xffa6f6fa
  35:	4d 8b 36             	mov    (%r14),%r14
  38:	48 8b 45 c0          	mov    -0x40(%rbp),%rax
  3c:	48                   	rex.W