general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 20874 Comm: syz.4.5743 Not tainted 6.1.84-syzkaller-00005-g96d66062d076 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__d_entry_type include/linux/dcache.h:394 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline]
RIP: 0010:do_renameat2+0x6fd/0x1480 fs/namei.c:4976
Code: f2 e8 77 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 57 08 ac ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00
RSP: 0018:ffffc9000892fc00 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000010 RCX: 0000000000040000
RDX: ffffc9000b46b000 RSI: 00000000000001fd RDI: 00000000000001fe
RBP: ffffc9000892fee0 R08: ffffffff81cbb018 R09: fffff52001125f59
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc9000892fde8 R14: 0000000000000002 R15: ffff88812c139690
FS:  00007f815cf4a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000127e84000 CR4: 00000000003506b0
Call Trace:
 <TASK>
 __do_sys_renameat2 fs/namei.c:5061 [inline]
 __se_sys_renameat2 fs/namei.c:5058 [inline]
 __x64_sys_renameat2+0xdd/0xf0 fs/namei.c:5058
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f815c175bd9
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:00007f815cf4a048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007f815c303f60 RCX: 00007f815c175bd9
RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f815c1e4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000004d R14: 00007f815c303f60 R15: 00007ffd3e5ba4d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:394 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline]
RIP: 0010:do_renameat2+0x6fd/0x1480 fs/namei.c:4976
Code: f2 e8 77 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 57 08 ac ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00
RSP: 0018:ffffc9000892fc00 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000010 RCX: 0000000000040000
RDX: ffffc9000b46b000 RSI: 00000000000001fd RDI: 00000000000001fe
RBP: ffffc9000892fee0 R08: ffffffff81cbb018 R09: fffff52001125f59
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc9000892fde8 R14: 0000000000000002 R15: ffff88812c139690
FS:  00007f815cf4a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c71fffc CR3: 0000000127e84000 CR4: 00000000003506b0
----------------
Code disassembly (best guess):
   0:	f2 e8 77 f0 fe ff    	bnd call 0xfffef07d
   6:	48 89 c3             	mov    %rax,%rbx
   9:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   f:	72 12                	jb     0x23
  11:	e8 57 08 ac ff       	call   0xffac086d
  16:	41 89 de             	mov    %ebx,%r14d
  19:	48 8b 5c 24 18       	mov    0x18(%rsp),%rbx
  1e:	e9 6f 05 00 00       	jmp    0x592
  23:	49 89 de             	mov    %rbx,%r14
  26:	49 c1 ee 03          	shr    $0x3,%r14
* 2a:	43 0f b6 04 26       	movzbl (%r14,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 8a 07 00 00    	jne    0x7c1
  37:	48 89 5c 24 40       	mov    %rbx,0x40(%rsp)
  3c:	8b 1b                	mov    (%rbx),%ebx
  3e:	be                   	.byte 0xbe