============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
kworker/u8:14/22150 is trying to acquire lock:
ffff88811823fd58 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x15f/0x4c0

but task is already holding lock:
ffff888104bb9558 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x15f/0x4c0

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&qdisc_xmit_lock_key#3);
  lock(&qdisc_xmit_lock_key#3);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

11 locks held by kworker/u8:14/22150:
 #0: ffff888112f81148 ((wq_completion)bond1#3){+.+.}-{0:0}, at: process_scheduled_works+0x9bd/0x1470
 #1: ffffc900091dfb80 ((work_completion)(&(&bond->alb_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9bd/0x1470
 #2: ffffffff8e356e40 (rcu_read_lock){....}-{1:3}, at: bond_alb_monitor+0xf3/0x17c0
 #3: ffffffff8e356ea0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x274/0x36f0
 #4: ffff8881b9370228 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#3){+...}-{3:3}, at: __dev_queue_xmit+0xffa/0x36f0
 #5: ffff888104bb9558 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x15f/0x4c0
 #6: ffffffff8e356e40 (rcu_read_lock){....}-{1:3}, at: ip_output+0x5a/0x450
 #7: ffffffff8e356e40 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x447/0x1210
 #8: ffffffff8e356e40 (rcu_read_lock){....}-{1:3}, at: arp_xmit+0x23/0x270
 #9: ffffffff8e356ea0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x274/0x36f0
 #10: ffff888173184228 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#3){+...}-{3:3}, at: __dev_queue_xmit+0xffa/0x36f0

stack backtrace:
CPU: 0 UID: 0 PID: 22150 Comm: kworker/u8:14 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: bond1 bond_alb_monitor
Call Trace:
 <TASK>
 dump_stack_lvl+0x1a9/0x280
 print_deadlock_bug+0x279/0x290
 __lock_acquire+0x24bf/0x2cd0
 lock_acquire+0x116/0x340
 _raw_spin_lock+0x2e/0x40
 sch_direct_xmit+0x15f/0x4c0
 __dev_queue_xmit+0x152f/0x36f0
 NF_HOOK+0x33a/0x3c0
 arp_xmit+0x16c/0x270
 arp_solicit+0xc3e/0xeb0
 __neigh_event_send+0xf0c/0x14d0
 neigh_resolve_output+0x1a1/0x720
 ip_finish_output2+0xdae/0x1210
 ip_output+0x29f/0x450
 iptunnel_xmit+0x58e/0xa10
 ip_tunnel_xmit+0x213f/0x2840
 gre_tap_xmit+0x5eb/0x7b0
 dev_hard_start_xmit+0x2cd/0x7f0
 sch_direct_xmit+0x257/0x4c0
 __dev_queue_xmit+0x152f/0x36f0
 alb_send_lp_vid+0x348/0x550
 alb_send_learning_packets+0x12c/0x300
 bond_alb_monitor+0x3d0/0x17c0
 process_scheduled_works+0xa2f/0x1470
 worker_thread+0xe79/0x1460
 kthread+0x787/0x910
 ret_from_fork+0x5b0/0xb20
 ret_from_fork_asm+0x1a/0x30
 </TASK>
