general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 498 Comm: syz.1.16 Not tainted 5.15.178-syzkaller-1079147-g7d1f9b5c2ff5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:dir_rename fs/incfs/vfs.c:1411 [inline]
RIP: 0010:dir_rename_wrap+0x256/0x720 fs/incfs/vfs.c:91
Code: 4c 8b 3c 24 e9 3e 04 00 00 e8 d6 cc 58 ff 31 db 4c 89 6c 24 18 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 cc 37 9b ff 4c 8b 2b 48 8b 5c 24 28
RSP: 0018:ffffc90000b77940 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b77a70 R08: ffffffff82179ead R09: fffff5200016ef19
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023407303
R13: 1ffff11023407305 R14: ffff88811a039818 R15: ffff88811a039828
FS:  00007fb75eb446c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb75eb23d58 CR3: 000000011985f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rename+0xd25/0x10e0 fs/namei.c:4832
 do_renameat2+0xb28/0x1480 fs/namei.c:4985
 __do_sys_renameat2 fs/namei.c:5018 [inline]
 __se_sys_renameat2 fs/namei.c:5015 [inline]
 __x64_sys_renameat2+0xdd/0xf0 fs/namei.c:5015
 x64_sys_call+0x85c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:317
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb75f0bc299
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:00007fb75eb44048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007fb75f24af80 RCX: 00007fb75f0bc299
RDX: 0000000000000004 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007fb75f1298e6 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb75f24af80 R15: 00007fff89fdc5e8
 </TASK>
Modules linked in:
---[ end trace 1f307512fe56cb88 ]---
RIP: 0010:dir_rename fs/incfs/vfs.c:1411 [inline]
RIP: 0010:dir_rename_wrap+0x256/0x720 fs/incfs/vfs.c:91
Code: 4c 8b 3c 24 e9 3e 04 00 00 e8 d6 cc 58 ff 31 db 4c 89 6c 24 18 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 cc 37 9b ff 4c 8b 2b 48 8b 5c 24 28
RSP: 0018:ffffc90000b77940 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b77a70 R08: ffffffff82179ead R09: fffff5200016ef19
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023407303
R13: 1ffff11023407305 R14: ffff88811a039818 R15: ffff88811a039828
FS:  00007fb75eb446c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb75eb22fa8 CR3: 000000011985f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 8b 3c 24          	mov    (%rsp),%r15
   4:	e9 3e 04 00 00       	jmp    0x447
   9:	e8 d6 cc 58 ff       	call   0xff58cce4
   e:	31 db                	xor    %ebx,%ebx
  10:	4c 89 6c 24 18       	mov    %r13,0x18(%rsp)
  15:	48 83 c3 08          	add    $0x8,%rbx
  19:	48 89 d8             	mov    %rbx,%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:	48 89 df             	mov    %rbx,%rdi
  33:	e8 cc 37 9b ff       	call   0xff9b3804
  38:	4c 8b 2b             	mov    (%rbx),%r13
  3b:	48 8b 5c 24 28       	mov    0x28(%rsp),%rbx