erspan1: entered allmulticast mode
bond26: (slave erspan1): making interface the new active one
erspan1: entered promiscuous mode
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.1.10646/10398 is trying to acquire lock:
ffff8881bf0f4958 (&qdisc_xmit_lock_key#4){+.-.}-{3:3}, at: sch_direct_xmit+0x15f/0x4c0

but task is already holding lock:
ffff888112cc2558 (&qdisc_xmit_lock_key#4){+.-.}-{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#4);
  lock(&qdisc_xmit_lock_key#4);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

10 locks held by syz.1.10646/10398:
 #0: ffffffff9034e1c8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff8fded380 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a3/0x1bd0
 #2: ffffffff8e959cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x29b/0x3820
 #3: ffff8881aeee3228 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#5){+...}-{3:3}, at: __dev_queue_xmit+0x1143/0x3820
 #4: ffff888112cc2558 (&qdisc_xmit_lock_key#4){+.-.}-{3:3}, at: sch_direct_xmit+0x15f/0x4c0
 #5: ffffffff8e959c60 (rcu_read_lock){....}-{1:3}, at: ip_output+0x5a/0x450
 #6: ffffffff8e959c60 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x3de/0x10b0
 #7: ffffffff8e959c60 (rcu_read_lock){....}-{1:3}, at: arp_xmit+0x23/0x270
 #8: ffffffff8e959cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x29b/0x3820
 #9: ffff8881bb02e228 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#5){+...}-{3:3}, at: __dev_queue_xmit+0x1143/0x3820

stack backtrace:
CPU: 1 UID: 0 PID: 10398 Comm: syz.1.10646 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
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_deadlock_bug+0x279/0x290
 __lock_acquire+0x24df/0x2cf0
 lock_acquire+0x106/0x350
 _raw_spin_lock+0x2e/0x40
 sch_direct_xmit+0x15f/0x4c0
 __dev_queue_xmit+0x177f/0x3820
 NF_HOOK+0x33a/0x3c0
 arp_xmit+0x16c/0x270
 arp_solicit+0xbdc/0xe40
 __neigh_event_send+0xf0c/0x1510
 neigh_resolve_output+0x1a1/0x720
 ip_finish_output2+0xc4b/0x10b0
 ip_output+0x29f/0x450
 iptunnel_xmit+0x626/0xd10
 ip_tunnel_xmit+0x195b/0x2040
 __gre_xmit+0x19e/0x240
 erspan_xmit+0xad5/0x1590
 dev_hard_start_xmit+0x2cd/0x830
 sch_direct_xmit+0x257/0x4c0
 __dev_queue_xmit+0x177f/0x3820
 alb_send_lp_vid+0x348/0x550
 alb_send_learning_packets+0x12c/0x300
 alb_fasten_mac_swap+0x45d/0xf70
 bond_alb_handle_active_change+0xc85/0xf50
 bond_change_active_slave+0x1098/0x36d0
 bond_select_active_slave+0x8a6/0xcd0
 bond_enslave+0x239c/0x3b10
 do_set_master+0x563/0x720
 rtnl_newlink_create+0x641/0xb00
 rtnl_newlink+0x167f/0x1bd0
 rtnetlink_rcv_msg+0x802/0xc00
 netlink_rcv_skb+0x226/0x4a0
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 sock_sendmsg_nosec+0x13a/0x180
 ____sys_sendmsg+0x54e/0x850
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1b1/0x290
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f14e739ce59
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:00007f14e8177028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f14e7615fa0 RCX: 00007f14e739ce59
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000007
RBP: 00007f14e7432e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f14e7616038 R14: 00007f14e7615fa0 R15: 00007ffded95cba8
 </TASK>
bond26: (slave erspan1): Enslaving as an active interface with an up link
syz.1.10646 (10398) used greatest stack depth: 16808 bytes left
