wacom 0003:056A:033B.0006: hidraw0: USB HID v1.11 Device [HID 056a:033b] on usb-dummy_hcd.7-1/input0
input: Wacom Intuos S 2 Pen as /devices/platform/dummy_hcd.7/usb8/8-1/8-1:1.0/0003:056A:033B.0006/input/input7
BUG: unable to handle page fault for address: fffff52003c00001
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23fff5067 P4D 23fff5067 PUD 1ae8f067 PMD 3ce3f067 PTE 0
Oops: Oops: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 10474 Comm: kworker/0:12 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:__list_add_valid_or_report+0x3e/0x130 lib/list_debug.c:29
Code: 00 00 00 48 89 d3 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 e2 8b 61 fd 4d 39 34 24 75 71
RSP: 0018:ffffc900042bf790 EFLAGS: 00010a02
RAX: 0000000000100000 RBX: ffffc9001e000000 RCX: 0000000080000001
RDX: ffffc9001e000000 RSI: ffffffff8e220f00 RDI: ffffc9001aaaa000
RBP: 1ffff92003c00001 R08: ffffffff8b477b80 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc9001e000008
R13: dffffc0000000000 R14: ffffffff8e220f00 R15: ffffc9001aaaa000
FS:  0000000000000000(0000) GS:ffff888125c3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff52003c00001 CR3: 0000000063994000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add include/linux/list.h:177 [inline]
 kcov_remote_area_put kernel/kcov.c:156 [inline]
 kcov_remote_stop+0x457/0x680 kernel/kcov.c:1084
 hub_event+0x4789/0x4cf0 drivers/usb/core/hub.c:6006
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
CR2: fffff52003c00001
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0x3e/0x130 lib/list_debug.c:29
Code: 00 00 00 48 89 d3 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 e2 8b 61 fd 4d 39 34 24 75 71
RSP: 0018:ffffc900042bf790 EFLAGS: 00010a02
RAX: 0000000000100000 RBX: ffffc9001e000000 RCX: 0000000080000001
RDX: ffffc9001e000000 RSI: ffffffff8e220f00 RDI: ffffc9001aaaa000
RBP: 1ffff92003c00001 R08: ffffffff8b477b80 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc9001e000008
R13: dffffc0000000000 R14: ffffffff8e220f00 R15: ffffc9001aaaa000
FS:  0000000000000000(0000) GS:ffff888125c3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff52003c00001 CR3: 0000000063994000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 48 89             	add    %cl,-0x77(%rax)
   5:	d3 48 85             	rorl   %cl,-0x7b(%rax)
   8:	d2 0f                	rorb   %cl,(%rdi)
   a:	84 93 00 00 00 49    	test   %dl,0x49000000(%rbx)
  10:	89 f6                	mov    %esi,%esi
  12:	49 89 ff             	mov    %rdi,%r15
  15:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  1c:	fc ff df
  1f:	4c 8d 63 08          	lea    0x8(%rbx),%r12
  23:	4c 89 e5             	mov    %r12,%rbp
  26:	48 c1 ed 03          	shr    $0x3,%rbp
* 2a:	42 80 7c 2d 00 00    	cmpb   $0x0,0x0(%rbp,%r13,1) <-- trapping instruction
  30:	74 08                	je     0x3a
  32:	4c 89 e7             	mov    %r12,%rdi
  35:	e8 e2 8b 61 fd       	call   0xfd618c1c
  3a:	4d 39 34 24          	cmp    %r14,(%r12)
  3e:	75 71                	jne    0xb1