general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 297 Comm: kworker/1:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:strlen+0x29/0x70 lib/string.c:581
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc90000af6eb8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881274f93c0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000af6ed8 R08: ffff8881098911df R09: 1ffff1102131223b
R10: dffffc0000000000 R11: ffffed102131223c R12: 0000000000000000
R13: 1ffff11021308ed2 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f727109b060 CR3: 000000010e0e9000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 start_creating+0x161/0x300 fs/debugfs/inode.c:354
 debugfs_create_dir+0x27/0x4c0 fs/debugfs/inode.c:559
 hid_debug_register+0x31/0x130 drivers/hid/hid-debug.c:1210
 hid_add_device+0x341/0x4b0 drivers/hid/hid-core.c:2498
 usbhid_probe+0xb93/0xf30 drivers/hid/usbhid/hid-core.c:1442
 usb_probe_interface+0x60f/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_set_configuration+0x1a01/0x1f70 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x143/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_new_device+0xa1f/0x1720 drivers/usb/core/hub.c:2638
 hub_port_connect drivers/usb/core/hub.c:5555 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5695 [inline]
 port_event drivers/usb/core/hub.c:5861 [inline]
 hub_event+0x291b/0x43f0 drivers/usb/core/hub.c:5943
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
 worker_thread+0xaa0/0x1250 kernel/workqueue.c:2475
 kthread+0x3f5/0x4f0 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 3127f4ed52bda28c ]---
RIP: 0010:strlen+0x29/0x70 lib/string.c:581
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc90000af6eb8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881274f93c0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000af6ed8 R08: ffff8881098911df R09: 1ffff1102131223b
R10: dffffc0000000000 R11: ffffed102131223c R12: 0000000000000000
R13: 1ffff11021308ed2 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc1163b2f8 CR3: 0000000130cf8000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 55 48             	add    %dl,0x48(%rbp)
   3:	89 e5                	mov    %esp,%ebp
   5:	41 57                	push   %r15
   7:	41 56                	push   %r14
   9:	41 54                	push   %r12
   b:	53                   	push   %rbx
   c:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  13:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  1a:	fc ff df
  1d:	48 89 fb             	mov    %rdi,%rbx
  20:	49 89 c7             	mov    %rax,%r15
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	75 11                	jne    0x44
  33:	48 ff c3             	inc    %rbx
  36:	49 8d 47 01          	lea    0x1(%r15),%rax
  3a:	42 80 7c 3f 01 00    	cmpb   $0x0,0x1(%rdi,%r15,1)