------------[ cut here ]------------
kernel BUG at net/core/dev.c:11577!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5337 Comm: syz.0.0 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:register_netdevice+0x2225/0x2280 net/core/dev.c:11577
Code: e9 1e fa ff ff 89 f9 80 e1 07 38 c1 0f 8c 20 fb ff ff e8 5e 83 78 f8 e9 16 fb ff ff e8 54 ec 05 f8 90 0f 0b e8 4c ec 05 f8 90 <0f> 0b e8 44 ec 05 f8 90 0f 0b 44 89 f9 80 e1 07 38 c1 0f 8c 34 f9
RSP: 0018:ffffc9000dd67580 EFLAGS: 00010293
RAX: ffffffff89c28ab4 RBX: 1ffff92001bacec4 RCX: ffff888013be2580
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc9000dd67700 R08: ffffffff91279207 R09: 1ffffffff224f240
R10: dffffc0000000000 R11: fffffbfff224f241 R12: ffff8880437b87a8
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff8880437b8000
FS:  00007f82084a96c0(0000) GS:ffff88808ae60000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f82077fa6b8 CR3: 00000000417bb000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 register_netdev+0x40/0x60 net/core/dev.c:11790
 gether_register_netdev+0x84/0x180 drivers/usb/gadget/function/u_ether.c:873
 ecm_bind+0x201/0xa30 drivers/usb/gadget/function/f_ecm.c:696
 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333
 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __driver_attach+0x339/0x600 drivers/base/dd.c:1292
 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:386
 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:771
 driver_register+0x23a/0x320 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x337/0x430 fs/configfs/file.c:229
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 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: 0033:0x7f820759f559
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:00007f82084a8fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8207826090 RCX: 00007f820759f559
RDX: 000000000000000b RSI: 0000200000000ac0 RDI: 0000000000000006
RBP: 00007f8207636b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8207826128 R14: 00007f8207826090 R15: 00007ffd59a33518
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:register_netdevice+0x2225/0x2280 net/core/dev.c:11577
Code: e9 1e fa ff ff 89 f9 80 e1 07 38 c1 0f 8c 20 fb ff ff e8 5e 83 78 f8 e9 16 fb ff ff e8 54 ec 05 f8 90 0f 0b e8 4c ec 05 f8 90 <0f> 0b e8 44 ec 05 f8 90 0f 0b 44 89 f9 80 e1 07 38 c1 0f 8c 34 f9
RSP: 0018:ffffc9000dd67580 EFLAGS: 00010293
RAX: ffffffff89c28ab4 RBX: 1ffff92001bacec4 RCX: ffff888013be2580
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc9000dd67700 R08: ffffffff91279207 R09: 1ffffffff224f240
R10: dffffc0000000000 R11: fffffbfff224f241 R12: ffff8880437b87a8
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff8880437b8000
FS:  00007f82084a96c0(0000) GS:ffff88808ae60000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e6516de660 CR3: 00000000417bb000 CR4: 0000000000352ef0