------------[ cut here ]------------
URB ffff888031b76100 submitted while active
WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x7b/0x18b0 drivers/usb/core/urb.c:380, CPU#1: kworker/1:2/991
Modules linked in:
CPU: 1 UID: 0 PID: 991 Comm: kworker/1:2 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events wdm_rxwork
RIP: 0010:usb_submit_urb+0x7e/0x18b0 drivers/usb/core/urb.c:380
Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 47 32 83 fb 49 83 3e 00 74 40 e8 cc 18 1e fb 48 8d 3d b5 35 b0 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 b1 18 1e fb eb 05 e8 aa 18
RSP: 0018:ffffc900043dfa30 EFLAGS: 00010293
RAX: ffffffff86a4fcb4 RBX: ffff888031b76100 RCX: ffff8880266e3c00
RDX: 0000000000000000 RSI: ffff888031b76100 RDI: ffffffff8f553270
RBP: ffffc900043dfc01 R08: ffffffff8f492877 R09: 1ffffffff1e9250e
R10: dffffc0000000000 R11: fffffbfff1e9250f R12: 0000000000000cc0
R13: 1ffff1100816b51a R14: ffff888031b76108 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126695000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000026000 CR3: 000000000d9ba000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000080083
DR3: ffffffffefffff16 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 wdm_rxwork+0xf7/0x1c0 drivers/usb/class/cdc-wdm.c:995
 process_one_work kernel/workqueue.c:3275 [inline]
 process_scheduled_works+0xaec/0x17a0 kernel/workqueue.c:3358
 worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 f0                	mov    %esi,%eax
   2:	48 c1 e8 03          	shr    $0x3,%rax
   6:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
   b:	74 08                	je     0x15
   d:	4c 89 f7             	mov    %r14,%rdi
  10:	e8 47 32 83 fb       	call   0xfb83325c
  15:	49 83 3e 00          	cmpq   $0x0,(%r14)
  19:	74 40                	je     0x5b
  1b:	e8 cc 18 1e fb       	call   0xfb1e18ec
  20:	48 8d 3d b5 35 b0 08 	lea    0x8b035b5(%rip),%rdi        # 0x8b035dc
  27:	48 89 de             	mov    %rbx,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	b8 f0 ff ff ff       	mov    $0xfffffff0,%eax
  34:	eb 11                	jmp    0x47
  36:	e8 b1 18 1e fb       	call   0xfb1e18ec
  3b:	eb 05                	jmp    0x42
  3d:	e8                   	.byte 0xe8
  3e:	aa                   	stos   %al,%es:(%rdi)
  3f:	18                   	.byte 0x18