------------[ cut here ]------------
kernel BUG at net/core/dev.c:11341!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 18403 Comm: syz.7.3282 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+0x123b/0x25a0 net/core/dev.c:11341
Code: 8d 3d e9 73 a1 07 ba 47 2c 00 00 48 c7 c6 00 29 16 8d 67 48 0f b9 3a e9 a5 ee ff ff e8 fe 72 7b f8 90 0f 0b e8 f6 72 7b f8 90 <0f> 0b 48 8b 5c 24 18 48 8b 6c 24 20 e8 e4 72 7b f8 48 8d 3d dd 73
RSP: 0018:ffffc900050cf7c8 EFLAGS: 00010283
RAX: 00000000000038ec RBX: 1ffff92000a19f02 RCX: ffffc90003f51000
RDX: 0000000000080000 RSI: ffffffff898ef1ea RDI: ffff88803f66a540
RBP: ffff88805826a000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888048048000 R14: ffff88803d4be2b0 R15: ffff88805826a000
FS:  00007f789038d6c0(0000) GS:ffff8880d5dec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556b4f88b2d0 CR3: 0000000042438000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 register_netdev+0x34/0x50 net/core/dev.c:11563
 gphonet_register_netdev drivers/usb/gadget/function/f_phonet.c:727 [inline]
 pn_bind+0x149/0x5b0 drivers/usb/gadget/function/f_phonet.c:511
 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+0x20e/0x450 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+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f788f59e0d9
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:00007f789038d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f788f825fa0 RCX: 00007f788f59e0d9
RDX: 000000000000000c RSI: 0000200000002100 RDI: 0000000000000005
RBP: 00007f788f635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f788f826038 R14: 00007f788f825fa0 R15: 00007ffd966ad208
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:register_netdevice+0x123b/0x25a0 net/core/dev.c:11341
Code: 8d 3d e9 73 a1 07 ba 47 2c 00 00 48 c7 c6 00 29 16 8d 67 48 0f b9 3a e9 a5 ee ff ff e8 fe 72 7b f8 90 0f 0b e8 f6 72 7b f8 90 <0f> 0b 48 8b 5c 24 18 48 8b 6c 24 20 e8 e4 72 7b f8 48 8d 3d dd 73
RSP: 0018:ffffc900050cf7c8 EFLAGS: 00010283
RAX: 00000000000038ec RBX: 1ffff92000a19f02 RCX: ffffc90003f51000
RDX: 0000000000080000 RSI: ffffffff898ef1ea RDI: ffff88803f66a540
RBP: ffff88805826a000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888048048000 R14: ffff88803d4be2b0 R15: ffff88805826a000
FS:  00007f789038d6c0(0000) GS:ffff8880d5dec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c4600c9 CR3: 0000000042438000 CR4: 0000000000352ef0