usb0: bond_netdev_event received NETDEV_PRE_UP
net usb0: siw: event 14
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000028: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000140-0x0000000000000147]
CPU: 0 UID: 0 PID: 4996 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:dev_driver_string+0x26/0xd0 drivers/base/core.c:2476
Code: 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 85 24 91 fb 4c 8d 73 68 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 fb bd 03 fc 4d 8b 36 4d 85 f6 74
RSP: 0018:ffffc900070a75a0 EFLAGS: 00010206
RAX: 0000000000000028 RBX: 00000000000000d8 RCX: ffff888036b3a580
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000d8
RBP: ffffc900070a7780 R08: ffffc900070a76ff R09: 0000000000000000
R10: ffffc900070a7680 R11: fffff52000e14ee0 R12: ffffffff917115f8
R13: dffffc0000000000 R14: 0000000000000140 R15: dffffc0000000000
FS:  00007f62fdcb0780(0000) GS:ffff88808b0a5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055efa24fd138 CR3: 00000000402bc000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __dynamic_dev_dbg+0x1ae/0x2e0 lib/dynamic_debug.c:906
 eth_open+0x170/0x1b0 drivers/usb/gadget/function/u_ether.c:622
 __dev_open+0x46f/0x850 net/core/dev.c:1724
 __dev_change_flags+0x329/0x820 net/core/dev.c:9855
 netif_change_flags+0x7c/0x1b0 net/core/dev.c:9920
 dev_change_flags+0x128/0x260 net/core/dev_api.c:68
 devinet_ioctl+0x966/0x1c50 net/ipv4/devinet.c:1199
 inet_ioctl+0x42a/0x560 net/ipv4/af_inet.c:1009
 sock_do_ioctl+0x101/0x320 net/socket.c:1325
 sock_ioctl+0x57a/0x7e0 net/socket.c:1446
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f62fddb0378
Code: 00 00 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 07 89 d0 c3 0f 1f 40 00 48 8b 15 49 3a 0d
RSP: 002b:00007fffa089c238 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 00007f62fddb0378
RDX: 00007fffa08ac430 RSI: 0000000000008914 RDI: 0000000000000019
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa08bc5d0
R13: 00007f62fdcb0708 R14: 0000000000000028 R15: 0000000000008914
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	f3 0f 1e fa          	endbr64
   8:	41 57                	push   %r15
   a:	41 56                	push   %r14
   c:	53                   	push   %rbx
   d:	48 89 fb             	mov    %rdi,%rbx
  10:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  17:	fc ff df
  1a:	e8 85 24 91 fb       	call   0xfb9124a4
  1f:	4c 8d 73 68          	lea    0x68(%rbx),%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 fb bd 03 fc       	call   0xfc03be34
  39:	4d 8b 36             	mov    (%r14),%r14
  3c:	4d 85 f6             	test   %r14,%r14
  3f:	74                   	.byte 0x74