usb0: bond_netdev_event received NETDEV_PRE_UP
net usb0: siw: event 14
Unable to handle kernel paging request at virtual address dfff800000000028
KASAN: null-ptr-deref in range [0x0000000000000140-0x0000000000000147]
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
[dfff800000000028] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 4397 Comm: dhcpcd Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : dev_driver_string+0x2c/0xd4 drivers/base/core.c:2476
lr : dev_driver_string+0x24/0xd4 drivers/base/core.c:2469
sp : ffff8000947773d0
x29: ffff8000947773d0 x28: 1fffe000186f49c2 x27: ffff8000872f1260
x26: ffff800094777480 x25: dfff800000000000 x24: ffff800094777440
x23: ffff7000128eee88 x22: ffff80008aea5df8 x21: dfff800000000000
x20: 00000000000000d8 x19: 0000000000000140 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffd183ddc8
x14: 00000000004d2c59 x13: 0000000000000010 x12: 0000000000000000
x11: 0000000000000000 x10: ffff7000128eeea8 x9 : 0000000000000000
x8 : 0000000000000028 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000004
x2 : 0000000000000000 x1 : ffff0000c80abb00 x0 : 0000000000000000
dump_backtrace(regs = 00000000b9dbfe9a tsk = 0000000000000000)
Call trace:
 dev_driver_string+0x2c/0xd4 drivers/base/core.c:2476 (P)
 __dynamic_dev_dbg+0x158/0x254 lib/dynamic_debug.c:906
 eth_open+0x150/0x178 drivers/usb/gadget/function/u_ether.c:622
 __dev_open+0x370/0x76c net/core/dev.c:1724
 __dev_change_flags+0x294/0x698 net/core/dev.c:9855
 netif_change_flags+0x80/0x15c net/core/dev.c:9920
 dev_change_flags+0x10c/0x204 net/core/dev_api.c:68
 devinet_ioctl+0x87c/0x1788 net/ipv4/devinet.c:1199
 inet_ioctl+0x304/0x42c net/ipv4/af_inet.c:1009
 sock_do_ioctl+0x100/0x254 net/socket.c:1325
 sock_ioctl+0x55c/0x7ec net/socket.c:1446
 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+0x154/0x1cc 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+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
Code: f2fbfff5 9785fbd3 9101a293 d343fe68 (38756908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f2fbfff5 	movk	x21, #0xdfff, lsl #48
   4:	9785fbd3 	bl	0xfffffffffe17ef50
   8:	9101a293 	add	x19, x20, #0x68
   c:	d343fe68 	lsr	x8, x19, #3
* 10:	38756908 	ldrb	w8, [x8, x21] <-- trapping instruction