============================================
WARNING: possible recursive locking detected
6.16.0-rc6-syzkaller-00135-gcf074eca0065 #0 Not tainted
--------------------------------------------
swapper/1/0 is trying to acquire lock:
ffff8880290e5958 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0

but task is already holding lock:
ffff888021527958 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0

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

12 locks held by swapper/1/0:
 #0: ffffc900001e0be0 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xbe/0x5f0
 #1: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x208/0x1400
 #2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ip6_finish_output2+0x701/0x16a0
 #3: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #4: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_start_xmit+0x101/0x1a90
 #5: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #6: ffff888023b18258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#2){+...}-{3:3}, at: __dev_queue_xmit+0x1300/0x3a70
 #7: ffff888021527958 (&qdisc_xmit_lock_key#3){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0
 #8: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x452/0x1160
 #9: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: arp_xmit+0x23/0x270
 #10: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #11: ffff888118a36258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#2){+...}-{3:3}, at: __dev_queue_xmit+0x1300/0x3a70

stack backtrace:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.16.0-rc6-syzkaller-00135-gcf074eca0065 #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:
 <IRQ>
 dump_stack_lvl+0x189/0x250
 print_deadlock_bug+0x28b/0x2a0
 validate_chain+0x1a3f/0x2140
 __lock_acquire+0xab9/0xd20
 lock_acquire+0x120/0x360
 _raw_spin_lock+0x2e/0x40
 sch_direct_xmit+0x153/0x4b0
 __dev_queue_xmit+0x17b6/0x3a70
 NF_HOOK+0x310/0x3a0
 arp_xmit+0x16c/0x270
 arp_solicit+0xc1d/0xe60
 __neigh_event_send+0xf70/0x1560
 neigh_resolve_output+0x198/0x750
 ip_finish_output2+0xd40/0x1160
 iptunnel_xmit+0x571/0xa00
 ip_tunnel_xmit+0x1c3c/0x2380
 gre_tap_xmit+0x590/0x7a0
 dev_hard_start_xmit+0x2d7/0x830
 sch_direct_xmit+0x241/0x4b0
 __dev_queue_xmit+0x17b6/0x3a70
 bond_dev_queue_xmit+0x10b/0x1e0
 bond_start_xmit+0xc0a/0x1a90
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1adf/0x3a70
 ip6_finish_output2+0x11bc/0x16a0
 ndisc_send_skb+0xb47/0x1400
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0x13/0x20
Code: d3 de 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d d3 ad 1a 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000177de0 EFLAGS: 00000282
RAX: 476e3e2631b27500 RBX: ffffffff81976a48 RCX: 476e3e2631b27500
RDX: 0000000000000001 RSI: ffffffff8d99610e RDI: ffffffff8be28c00
RBP: ffffc90000177f20 R08: ffff888136632f5b R09: 1ffff11026cc65eb
R10: dffffc0000000000 R11: ffffed1026cc65ec R12: ffffffff8fa1d6f0
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1102001e000
 default_idle+0x13/0x20
 default_idle_call+0x74/0xb0
 do_idle+0x1e8/0x510
 cpu_startup_entry+0x44/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
