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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 10468 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x263/0x440 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 1 PID: 10468 Comm: kworker/u4:11 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: bat_events batadv_nc_worker
RIP: 0010:usb_ep_enable+0x263/0x440 drivers/usb/gadget/udc/core.c:124
Code: 49 8b 0e 48 c7 c0 c0 0f 7b 8b 49 c7 c0 e0 0f 7b 8b 4c 0f 44 c0 48 c7 c7 80 0f 7b 8b 48 c7 c6 5c 27 a7 8c 89 ea e8 9d 03 95 fa <0f> 0b e9 e1 fe ff ff e8 91 3f cb fa 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900001f0790 EFLAGS: 00010046
RAX: 6d7e9c2abdb0c500 RBX: ffff888023aac0e0 RCX: ffff88802b375a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000081 R08: ffffc900001f0387 R09: 1ffff9200003e070
R10: dffffc0000000000 R11: fffff5200003e071 R12: dffffc0000000000
R13: ffff888023aac10d R14: ffff888023aac0e8 R15: ffff88805d37c7ba
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe29a5556c8 CR3: 000000000cf32000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 hidg_set_alt+0x12a/0xa10 drivers/usb/gadget/function/f_hid.c:826
 set_config+0x735/0xff0 drivers/usb/gadget/composite.c:1018
 composite_setup+0x1df4/0x33a0 drivers/usb/gadget/composite.c:1925
 configfs_composite_setup+0xc7/0x100 drivers/usb/gadget/configfs.c:1875
 dummy_timer+0x1324/0x34e0 drivers/usb/gadget/udc/dummy_hcd.c:1949
 __run_hrtimer kernel/time/hrtimer.c:1754 [inline]
 __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 da 15 ce f6 48 89 df e8 82 e9 ce f6 e8 3d f9 f2 f6 fb bf 01 00 00 00 <e8> b2 f6 c1 f6 65 8b 05 63 b4 68 75 85 c0 74 02 5b c3 e8 50 99 65
RSP: 0018:ffffc9000b7cfbb0 EFLAGS: 00000282
RAX: 6d7e9c2abdb0c500 RBX: ffff888018650000 RCX: 6d7e9c2abdb0c500
RDX: dffffc0000000000 RSI: ffffffff8acacce0 RDI: 0000000000000001
RBP: ffffc9000b7cfda8 R08: ffffffff8e8c316f R09: 1ffffffff1d1862d
R10: dffffc0000000000 R11: fffffbfff1d1862e R12: ffff88805f62d7a0
R13: dffffc0000000000 R14: 0000000000000100 R15: ffff8880765fdd18
 process_one_work kernel/workqueue.c:2628 [inline]
 process_scheduled_works+0x8b1/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 f3                	add    %dh,%bl
   2:	0f 1e fa             	nop    %edx
   5:	53                   	push   %rbx
   6:	48 89 fb             	mov    %rdi,%rbx
   9:	48 83 c7 18          	add    $0x18,%rdi
   d:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  12:	e8 da 15 ce f6       	call   0xf6ce15f1
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 82 e9 ce f6       	call   0xf6cee9a1
  1f:	e8 3d f9 f2 f6       	call   0xf6f2f961
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 b2 f6 c1 f6       	call   0xf6c1f6e1 <-- trapping instruction
  2f:	65 8b 05 63 b4 68 75 	mov    %gs:0x7568b463(%rip),%eax        # 0x7568b499
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5b                   	pop    %rbx
  3b:	c3                   	ret
  3c:	e8                   	.byte 0xe8
  3d:	50                   	push   %rax
  3e:	99                   	cltd
  3f:	65                   	gs