Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
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=000000004b0f9480
[0000000000000000] pgd=080000008f060403, p4d=0800000049b25403, pud=0800000047589403, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 8910 Comm: syz.3.13070 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : dummy_set_selfpowered+0x38/0x60 drivers/usb/gadget/udc/dummy_hcd.c:906
lr : usb_gadget_set_selfpowered+0x20/0x34 drivers/usb/gadget/udc/core.c:578
sp : ffff8000838e39e0
x29: ffff8000838e39e0 x28: fdf0000006293300 x27: 0000000000000000
x26: fdf000000b0e7800 x25: 0000000000000000 x24: fdf000000b0e7c10
x23: f4f0000005deabc8 x22: fdf000000b0e7b80 x21: 0000000000000000
x20: f4f0000005deabc8 x19: fdf000000b0e7cb8 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000020000680
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000001 x9 : 0000000000000220
x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefefefefeff63
x5 : 0000000000000001 x4 : 0000000000000003 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 dummy_set_selfpowered+0x38/0x60 drivers/usb/gadget/udc/dummy_hcd.c:908 (P)
 composite_dev_prepare+0xa0/0x100 drivers/usb/gadget/composite.c:2440
 configfs_composite_bind+0x38/0x5e0 drivers/usb/gadget/configfs.c:1701
 gadget_bind_driver+0x90/0x284 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0xbc/0x2bc drivers/base/dd.c:706
 __driver_probe_device+0x118/0x16c drivers/base/dd.c:868
 driver_probe_device+0x3c/0x120 drivers/base/dd.c:898
 __driver_attach+0x90/0x180 drivers/base/dd.c:1292
 bus_for_each_dev+0x7c/0xdc drivers/base/bus.c:383
 driver_attach+0x24/0x30 drivers/base/dd.c:1310
 bus_add_driver+0xe4/0x208 drivers/base/bus.c:763
 driver_register+0x68/0x130 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0x54/0xfc drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0xec/0x13c drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0xc4/0x128 fs/configfs/file.c:229
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x244/0x36c fs/read_write.c:687
 ksys_write+0x70/0x108 fs/read_write.c:739
 __do_sys_write fs/read_write.c:750 [inline]
 __se_sys_write fs/read_write.c:747 [inline]
 __arm64_sys_write+0x1c/0x30 fs/read_write.c:747
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140
 el0_svc+0x38/0x1fc arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0xa0/0xf0 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:594
Code: 7100149f f9482463 9a831042 7100003f (f9400042) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	7100149f 	cmp	w4, #0x5
   4:	f9482463 	ldr	x3, [x3, #4168]
   8:	9a831042 	csel	x2, x2, x3, ne	// ne = any
   c:	7100003f 	cmp	w1, #0x0
* 10:	f9400042 	ldr	x2, [x2] <-- trapping instruction