------------[ cut here ]------------
WARNING: CPU: 2 PID: 5211 at kernel/locking/lockdep.c:1226 lockdep_register_key+0xcd/0x200 kernel/locking/lockdep.c:1226
Modules linked in:
CPU: 2 PID: 5211 Comm: syz-executor.2 Not tainted 6.7.0-rc4-syzkaller-00358-gf2e8a57ee903 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:lockdep_register_key+0xcd/0x200 kernel/locking/lockdep.c:1226
Code: 00 00 00 00 00 fc ff df eb 1a 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 fa 00 00 00 48 8b 1b 48 85 db 74 2e 48 39 eb 75 e1 90 <0f> 0b 90 e8 bb f7 ff ff 9c 58 f6 c4 02 0f 85 be 00 00 00 41 f7 c6
RSP: 0018:ffffc90003b3f938 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff88801aa61490 RCX: 1ffffffff1e32e4f
RDX: 1ffffffff2417b1f RSI: ffffffff8acd1800 RDI: ffffffff8b2f1020
RBP: ffff88801aa61490 R08: 0000000000000000 R09: fffffbfff1e327d2
R10: ffffffff8f193e97 R11: 0000000000000000 R12: 00000000000002af
R13: ffffffff920bd8f8 R14: 0000000000000207 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:0000000056c8e400
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737b028 CR3: 000000005f6bc000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 debugfs_file_get+0x40a/0x620 fs/debugfs/file.c:113
 open_proxy_open+0x50/0x3f0 fs/debugfs/file.c:269
 do_dentry_open+0x8d6/0x18c0 fs/open.c:948
 do_open fs/namei.c:3622 [inline]
 path_openat+0x1e5a/0x2c50 fs/namei.c:3779
 do_filp_open+0x1de/0x430 fs/namei.c:3809
 do_sys_openat2+0x176/0x1e0 fs/open.c:1440
 do_sys_open fs/open.c:1455 [inline]
 __do_compat_sys_openat fs/open.c:1515 [inline]
 __se_compat_sys_openat fs/open.c:1513 [inline]
 __ia32_compat_sys_openat+0x16e/0x200 fs/open.c:1513
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7fe2579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ffcd6e50 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f72a54fc
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000f7353ff4
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi