Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0
user pgtable: 4k pages, 52-bit VAs, pgdp=0000000046706b00
[0000000000000060] pgd=080000004994f403, p4d=080000005c6fe403, pud=080000005c731403, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 3170 Comm: kworker/1:1H Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
Workqueue: events_highpri f_midi_in_work
pstate: 814020c9 (Nzcv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : dummy_queue+0x74/0x250 drivers/usb/gadget/udc/dummy_hcd.c:737
lr : usb_ep_queue+0x28/0x3c drivers/usb/gadget/udc/core.c:305
sp : ffff80008946bcc0
x29: ffff80008946bcc0 x28: f1f0000005fffc00 x27: f1f0000005fffdf0
x26: f7f0000005be60a8 x25: f0f000000bb3d490 x24: f7f0000005be60a8
x23: f7f0000005be6bc8 x22: f0f000000bb3d480 x21: f7f0000005be6080
x20: f7f0000005be6000 x19: f0f000000bb3d490 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000040
x14: 0000000000000000 x13: 0000000000000030 x12: 0101010101010101
x11: 7f7f7f7f7f7f7f7f x10: fefefefefefefeff x9 : 7f7f7f7f7f7f7f7f
x8 : 000000000000007b x7 : 0000000000000003 x6 : f5f0000035058000
x5 : 0000000000001000 x4 : f9f00000062d6000 x3 : ffff8000811fe150
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f2f000000bd153c8
Call trace:
 dummy_queue+0x74/0x250 drivers/usb/gadget/udc/dummy_hcd.c:737 (P)
 usb_ep_queue+0x28/0x3c drivers/usb/gadget/udc/core.c:305
 f_midi_do_transmit drivers/usb/gadget/function/f_midi.c:659 [inline]
 f_midi_transmit drivers/usb/gadget/function/f_midi.c:687 [inline]
 f_midi_in_work+0x274/0x594 drivers/usb/gadget/function/f_midi.c:707
 process_one_work+0x180/0x2d0 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x18c/0x300 kernel/workqueue.c:3486
 kthread+0x118/0x124 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858
Code: f9482281 f9482682 9a821021 b4000ca0 (b9406020) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f9482281 	ldr	x1, [x20, #4160]
   4:	f9482682 	ldr	x2, [x20, #4168]
   8:	9a821021 	csel	x1, x1, x2, ne	// ne = any
   c:	b4000ca0 	cbz	x0, 0x1a0
* 10:	b9406020 	ldr	w0, [x1, #96] <-- trapping instruction