general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 3375 Comm: syz.1.855 Not tainted 6.1.90-syzkaller-00004-g79436849ef1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:d_is_positive include/linux/dcache.h:455 [inline]
RIP: 0010:do_renameat2+0x79a/0x1480 fs/namei.c:4984
Code: 24 ac 00 00 00 00 48 89 44 24 30 75 16 e8 1e f6 ab ff 83 7c 24 58 00 75 5d e8 12 f6 ab ff e9 74 01 00 00 48 89 c1 48 c1 e9 03 <42> 0f b6 14 21 84 d2 0f 85 0a 07 00 00 8b 18 be 00 00 70 00 21 de
RSP: 0018:ffffc90006ec7c00 EFLAGS: 00010202

RAX: 0000000000000010 RBX: ffff88811c804220 RCX: 0000000000000002
RDX: ffffc9000c4b2000 RSI: 0000000000001b54 RDI: 0000000000001b55
RBP: ffffc90006ec7ed0 R08: ffffffff81cbde98 R09: fffff52000dd8f59
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc90006ec7de8 R14: 1ffff1103ee339e6 R15: ffff88811c804250
FS:  00007f472cd526c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31814ff8 CR3: 000000012cf73000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 00000000872c9164 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
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
 x64_sys_call+0x85c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:317
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f472bf799f9
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:00007f472cd52038 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007f472c116130 RCX: 00007f472bf799f9
RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f472bfe78ee R08: 0000000000000005 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f472c116130 R15: 00007ffce3a1ea68
 </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:d_is_positive include/linux/dcache.h:455 [inline]
RIP: 0010:do_renameat2+0x79a/0x1480 fs/namei.c:4984
Code: 24 ac 00 00 00 00 48 89 44 24 30 75 16 e8 1e f6 ab ff 83 7c 24 58 00 75 5d e8 12 f6 ab ff e9 74 01 00 00 48 89 c1 48 c1 e9 03 <42> 0f b6 14 21 84 d2 0f 85 0a 07 00 00 8b 18 be 00 00 70 00 21 de
RSP: 0018:ffffc90006ec7c00 EFLAGS: 00010202
RAX: 0000000000000010 RBX: ffff88811c804220 RCX: 0000000000000002
RDX: ffffc9000c4b2000 RSI: 0000000000001b54 RDI: 0000000000001b55
RBP: ffffc90006ec7ed0 R08: ffffffff81cbde98 R09: fffff52000dd8f59
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc90006ec7de8 R14: 1ffff1103ee339e6 R15: ffff88811c804250
FS:  00007f472cd526c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000008200000085 CR3: 000000012cf73000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 ac                	and    $0xac,%al
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 44 24 30       	mov    %rax,0x30(%rsp)
   b:	75 16                	jne    0x23
   d:	e8 1e f6 ab ff       	call   0xffabf630
  12:	83 7c 24 58 00       	cmpl   $0x0,0x58(%rsp)
  17:	75 5d                	jne    0x76
  19:	e8 12 f6 ab ff       	call   0xffabf630
  1e:	e9 74 01 00 00       	jmp    0x197
  23:	48 89 c1             	mov    %rax,%rcx
  26:	48 c1 e9 03          	shr    $0x3,%rcx
* 2a:	42 0f b6 14 21       	movzbl (%rcx,%r12,1),%edx <-- trapping instruction
  2f:	84 d2                	test   %dl,%dl
  31:	0f 85 0a 07 00 00    	jne    0x741
  37:	8b 18                	mov    (%rax),%ebx
  39:	be 00 00 70 00       	mov    $0x700000,%esi
  3e:	21 de                	and    %ebx,%esi