------------[ cut here ]------------
usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480 drivers/usb/gadget/udc/core.c:124, CPU#0: ktimers/0/16
Modules linked in:
CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:usb_ep_enable+0x1bc/0x480 drivers/usb/gadget/udc/core.c:124
Code: 0a 8b f8 fa 49 83 3f 00 48 c7 c0 40 e7 41 8c 49 c7 c0 60 e7 41 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 da 2d d4 8d 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 00 c7 8b fa 65 8b
RSP: 0018:ffffc900001576b8 EFLAGS: 00010286
RAX: ffffffff8c41e740 RBX: ffff888021b88120 RCX: ffffffff8c4205c0
RDX: 0000000000000081 RSI: ffffffff8dd42dda RDI: ffffffff90df1680
RBP: dffffc0000000000 R08: ffffffff8c41e760 R09: 0000000000000100
R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c4205c0
R13: 0000000000000081 R14: ffffffff90df1680 R15: ffff888021b88138
FS:  0000000000000000(0000) GS:ffff8881247b8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056291a67a6f8 CR3: 000000002672e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 hidg_set_alt+0x12a/0xa50 drivers/usb/gadget/function/f_hid.c:1042
 set_config+0x749/0x1160 drivers/usb/gadget/composite.c:1018
 composite_setup+0x1de7/0x3480 drivers/usb/gadget/composite.c:1901
 configfs_composite_setup+0xbd/0x100 drivers/usb/gadget/configfs.c:1877
 dummy_timer+0x2f5d/0x4d30 drivers/usb/gadget/udc/dummy_hcd.c:1955
 __run_hrtimer kernel/time/hrtimer.c:2074 [inline]
 __hrtimer_run_queues+0x3eb/0xaf0 kernel/time/hrtimer.c:2131
 hrtimer_run_softirq+0x1e1/0x2e0 kernel/time/hrtimer.c:2148
 handle_softirqs+0x1da/0x6d0 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 run_ktimerd+0x6a/0x100 kernel/softirq.c:1174
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/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>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	8b f8                	mov    %eax,%edi
   2:	fa                   	cli
   3:	49 83 3f 00          	cmpq   $0x0,(%r15)
   7:	48 c7 c0 40 e7 41 8c 	mov    $0xffffffff8c41e740,%rax
   e:	49 c7 c0 60 e7 41 8c 	mov    $0xffffffff8c41e760,%r8
  15:	4c 0f 44 c0          	cmove  %rax,%r8
  19:	4c 89 f7             	mov    %r14,%rdi
  1c:	48 c7 c6 da 2d d4 8d 	mov    $0xffffffff8dd42dda,%rsi
  23:	44 89 ea             	mov    %r13d,%edx
  26:	4c 89 e1             	mov    %r12,%rcx
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	bd ea ff ff ff       	mov    $0xffffffea,%ebp
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	e8 00 c7 8b fa       	call   0xfa8bc73d
  3d:	65                   	gs
  3e:	8b                   	.byte 0x8b