------------[ 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#1: kworker/u8:12/5889
Modules linked in:
CPU: 1 UID: 0 PID: 5889 Comm: kworker/u8:12 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:usb_ep_enable+0x1bc/0x480 drivers/usb/gadget/udc/core.c:124
Code: fa a4 6f fa 49 83 3f 00 48 c7 c0 00 70 d3 8c 49 c7 c0 20 70 d3 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 00 01 6c 8e 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 60 57 fe f9 65 8b
RSP: 0018:ffffc90000a38910 EFLAGS: 00010082
RAX: ffffffff8cd37000 RBX: ffff8880203b80e0 RCX: ffffffff8cd38e20
RDX: 0000000000000081 RSI: ffffffff8e6c0100 RDI: ffffffff90881080
RBP: dffffc0000000000 R08: ffffffff8cd37020 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8cd38e20
R13: 0000000000000081 R14: ffffffff90881080 R15: ffff8880203b80f8
FS:  0000000000000000(0000) GS:ffff888124daf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33b10ff8 CR3: 0000000022b72000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 hidg_set_alt+0x12a/0xa60 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+0xc7/0x100 drivers/usb/gadget/configfs.c:1877
 dummy_timer+0x2f43/0x4cf0 drivers/usb/gadget/udc/dummy_hcd.c:1951
 __run_hrtimer kernel/time/hrtimer.c:2075 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132
 hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2149
 handle_softirqs+0x223/0x840 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:clear_pages arch/x86/include/asm/page_64.h:103 [inline]
RIP: 0010:clear_highpages_kasan_tagged mm/page_alloc.c:1208 [inline]
RIP: 0010:post_alloc_hook+0x115/0x250 mm/page_alloc.c:1852
Code: 48 c1 e8 03 42 80 3c 28 00 74 0c 48 c7 c7 00 1f 6f 8e e8 3e 0f 0f 00 4c 03 25 27 fe 43 0c 44 89 f9 48 c1 e1 0c 31 c0 4c 89 e7 <f3> aa 0f 1f 44 00 00 e8 4f d7 0e 00 e9 c4 00 00 00 e9 d3 00 00 00
RSP: 0018:ffffc90004c8f4e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000006d40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802fb912c0
RBP: 00000000000d2820 R08: ffffffff907a1fbf R09: 0000000000000000
R10: ffffed1005f72000 R11: fffffbfff20f43f8 R12: ffff88802fb90000
R13: dffffc0000000000 R14: ffffea0000bee400 R15: 0000000000000008
 prep_new_page mm/page_alloc.c:1862 [inline]
 get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3933
 __alloc_frozen_pages_noprof+0x1fc/0x400 mm/page_alloc.c:5441
 alloc_slab_page mm/slub.c:3378 [inline]
 allocate_slab+0x7d/0x620 mm/slub.c:3493
 new_slab mm/slub.c:3544 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7457
 refill_sheaf mm/slub.c:2916 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4805
 alloc_from_pcs mm/slub.c:4881 [inline]
 slab_alloc_node mm/slub.c:5015 [inline]
 __do_kmalloc_node mm/slub.c:5449 [inline]
 __kmalloc_node_track_caller_noprof+0x543/0x720 mm/slub.c:5581
 kmalloc_reserve net/core/skbuff.c:637 [inline]
 __alloc_skb+0x2c1/0x7a0 net/core/skbuff.c:715
 alloc_skb include/linux/skbuff.h:1384 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:744 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:801 [inline]
 nsim_dev_trap_report_work+0x25f/0xb30 drivers/net/netdevsim/dev.c:847
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 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):
   0:	fa                   	cli
   1:	a4                   	movsb  %ds:(%rsi),%es:(%rdi)
   2:	6f                   	outsl  %ds:(%rsi),(%dx)
   3:	fa                   	cli
   4:	49 83 3f 00          	cmpq   $0x0,(%r15)
   8:	48 c7 c0 00 70 d3 8c 	mov    $0xffffffff8cd37000,%rax
   f:	49 c7 c0 20 70 d3 8c 	mov    $0xffffffff8cd37020,%r8
  16:	4c 0f 44 c0          	cmove  %rax,%r8
  1a:	4c 89 f7             	mov    %r14,%rdi
  1d:	48 c7 c6 00 01 6c 8e 	mov    $0xffffffff8e6c0100,%rsi
  24:	44 89 ea             	mov    %r13d,%edx
  27:	4c 89 e1             	mov    %r12,%rcx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	bd ea ff ff ff       	mov    $0xffffffea,%ebp
  34:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  39:	e8 60 57 fe f9       	call   0xf9fe579e
  3e:	65                   	gs
  3f:	8b                   	.byte 0x8b