Unable to handle kernel paging request at virtual address dfff80000000000c
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0
[dfff80000000000c] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 4400 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : dummy_queue+0x16c/0x6e4 drivers/usb/gadget/udc/dummy_hcd.c:718
lr : gadget_to_dummy_hcd drivers/usb/gadget/udc/dummy_hcd.c:317 [inline]
lr : dummy_queue+0x138/0x6e4 drivers/usb/gadget/udc/dummy_hcd.c:717
sp : ffff800098d36e70
x29: ffff800098d36ea0 x28: 1fffe0001922301b x27: ffff0000c9118c00
x26: ffff0000c8c90100 x25: dfff800000000000 x24: ffff0000c91180d8
x23: dfff800000000000 x22: 1fffe00019192020 x21: 0000000000000060
x20: ffff0000c91180e0 x19: ffff0000c8c90110 x18: 00000000ffffffff
x17: ffff80008a791000 x16: 0000000000000006 x15: ffff80008a31ada0
x14: ffff80008a590e28 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a590e28 x10: 0000000000000404 x9 : 00000000000006a8
x8 : 000000000000000c x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000835b74fc
x2 : 0000000000000003 x1 : ffff0000c6ee9d40 x0 : 0000000000000000
Call trace:
 dummy_queue+0x16c/0x6e4 drivers/usb/gadget/udc/dummy_hcd.c:718 (P)
 usb_ep_queue+0xe4/0x578 drivers/usb/gadget/udc/core.c:305
 eth_start_xmit+0x78c/0xe14 drivers/usb/gadget/function/u_ether.c:579
 __netdev_start_xmit include/linux/netdevice.h:5400 [inline]
 netdev_start_xmit include/linux/netdevice.h:5409 [inline]
 xmit_one net/core/dev.c:3889 [inline]
 dev_hard_start_xmit+0x1dc/0x9d4 net/core/dev.c:3905
 sch_direct_xmit+0x1ac/0x3b0 net/sched/sch_generic.c:372
 __dev_xmit_skb net/core/dev.c:4214 [inline]
 __dev_queue_xmit+0x1130/0x2bc0 net/core/dev.c:4836
 dev_queue_xmit include/linux/netdevice.h:3446 [inline]
 lapbeth_data_transmit+0x210/0x2bc drivers/net/wan/lapbether.c:260
 lapb_data_transmit+0x8c/0xb0 net/lapb/lapb_iface.c:447
 lapb_transmit_buffer+0x15c/0x200 net/lapb/lapb_out.c:149
 lapb_send_control+0x22c/0x31c net/lapb/lapb_subr.c:251
 lapb_establish_data_link+0x94/0xf8 net/lapb/lapb_out.c:-1
 lapb_device_event+0x354/0x4f4 net/lapb/lapb_iface.c:-1
 notifier_call_chain+0x1a4/0x624 kernel/notifier.c:85
 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
 call_netdevice_notifiers_info+0xb8/0x120 net/core/dev.c:2250
 call_netdevice_notifiers_extack net/core/dev.c:2288 [inline]
 call_netdevice_notifiers net/core/dev.c:2302 [inline]
 __dev_notify_flags+0x160/0x27c net/core/dev.c:9799
 netif_change_flags+0xd0/0x15c net/core/dev.c:9828
 dev_change_flags+0x10c/0x204 net/core/dev_api.c:68
 devinet_ioctl+0x87c/0x1788 net/ipv4/devinet.c:1199
 inet_ioctl+0x334/0x460 net/ipv4/af_inet.c:1009
 sock_do_ioctl+0x100/0x254 net/socket.c:1300
 sock_ioctl+0x55c/0x7ec net/socket.c:1421
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Code: 97579422 f94002a8 91018115 d343fea8 (38f96908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97579422 	bl	0xfffffffffd5e5088
   4:	f94002a8 	ldr	x8, [x21]
   8:	91018115 	add	x21, x8, #0x60
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38f96908 	ldrsb	w8, [x8, x25] <-- trapping instruction