------------[ cut here ]------------
RTNL: assertion failed at ./include/net/netdev_lock.h (72)
WARNING: CPU: 1 PID: 13 at ./include/net/netdev_lock.h:72 __linkwatch_sync_dev+0x303/0x350
Modules linked in:
CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bond8 bond_mii_monitor
RIP: 0010:__linkwatch_sync_dev+0x303/0x350
Code: 7c fe ff ff e8 1e 1a 54 f8 c6 05 39 ee 21 06 01 90 48 c7 c7 a0 b8 94 8c 48 c7 c6 4c f4 9f 8d ba 48 00 00 00 e8 fe b8 17 f8 90 <0f> 0b 90 90 e9 4d fe ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 22 fd ff
RSP: 0018:ffffc90000107670 EFLAGS: 00010246
RAX: 5d65d327c2290700 RBX: ffff88812e0d4000 RCX: ffff88801c2e0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: 1ffff11025c1a85d
R13: dffffc0000000000 R14: ffffffff8c1be828 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881a3c1a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f49866280d0 CR3: 0000000113a1e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ethtool_op_get_link+0x15/0x70
 bond_check_dev_link+0x447/0x6c0
 bond_mii_monitor+0x428/0x2e00
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
