overlayfs: option "index=on" is useless in a non-upper mount, ignore
overlayfs: missing 'lowerdir'
------------[ cut here ]------------
kernel BUG at net/core/dev.c:11443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 9700 Comm: syz.0.958 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:register_netdevice+0x1233/0x25a0 net/core/dev.c:11443
Code: 0f 0b e8 c0 8e 67 f8 48 8d 3d 79 5d af 08 ba ae 2c 00 00 48 c7 c6 00 94 39 8d 67 48 0f b9 3a e9 a5 ee ff ff e8 9e 8e 67 f8 90 <0f> 0b e8 96 8e 67 f8 90 0f 0b 48 8b 5c 24 18 48 8b 6c 24 20 e8 84
RSP: 0018:ffffc9000363f798 EFLAGS: 00010283
RAX: 0000000000000ada RBX: 1ffff920006c7efc RCX: ffffc900068d1000
RDX: 0000000000080000 RSI: ffffffff89a4d4b2 RDI: ffff888040a14b00
RBP: ffff888024348000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000003
R13: ffff888024348f10 R14: ffff888024349049 R15: ffff888054aaccbc
FS:  00007f8dada346c0(0000) GS:ffff8880d4940000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 00000000589db000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 register_netdev+0x34/0x50 net/core/dev.c:11666
 gether_register_netdev+0x93/0x130 drivers/usb/gadget/function/u_ether.c:873
 ecm_bind+0x848/0xc00 drivers/usb/gadget/function/f_ecm.c:696
 usb_add_function+0x219/0x890 drivers/usb/gadget/composite.c:333
 configfs_composite_bind+0xd83/0x1960 drivers/usb/gadget/configfs.c:1802
 gadget_bind_driver+0x28c/0xbf0 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
 driver_register+0x1e2/0x360 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0x132/0x210 drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0x1b0/0x2e0 drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x302/0x4e0 fs/configfs/file.c:229
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6af/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8dacb9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8dada34028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8dace25fa0 RCX: 00007f8dacb9f559
RDX: 000000000000000b RSI: 0000200000000ac0 RDI: 0000000000000007
RBP: 00007f8dacc36b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8dace26038 R14: 00007f8dace25fa0 R15: 00007ffe3c169998
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:register_netdevice+0x1233/0x25a0 net/core/dev.c:11443
Code: 0f 0b e8 c0 8e 67 f8 48 8d 3d 79 5d af 08 ba ae 2c 00 00 48 c7 c6 00 94 39 8d 67 48 0f b9 3a e9 a5 ee ff ff e8 9e 8e 67 f8 90 <0f> 0b e8 96 8e 67 f8 90 0f 0b 48 8b 5c 24 18 48 8b 6c 24 20 e8 84
RSP: 0018:ffffc9000363f798 EFLAGS: 00010283
RAX: 0000000000000ada RBX: 1ffff920006c7efc RCX: ffffc900068d1000
RDX: 0000000000080000 RSI: ffffffff89a4d4b2 RDI: ffff888040a14b00
RBP: ffff888024348000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000003
R13: ffff888024348f10 R14: ffff888024349049 R15: ffff888054aaccbc
FS:  00007f8dada346c0(0000) GS:ffff8880d4a40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95825f4158 CR3: 00000000589db000 CR4: 0000000000352ef0