======================================================
WARNING: possible circular locking dependency detected
6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0 Not tainted
------------------------------------------------------
kworker/u8:1/13 is trying to acquire lock:
ffff88802d19ef30 (&hsr->seqnr_lock){+.-.}-{3:3}, at: hsr_dev_xmit+0x19a/0x220

but task is already holding lock:
ffff88802d9c3958 (&qdisc_xmit_lock_key#5){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&qdisc_xmit_lock_key#5){+.-.}-{3:3}:
       lock_acquire+0x120/0x360
       _raw_spin_lock+0x2e/0x40
       sch_direct_xmit+0x153/0x4b0
       __dev_queue_xmit+0x17b6/0x3a70
       hsr_forward_skb+0x158b/0x2860
       hsr_dev_xmit+0x1a5/0x220
       dev_hard_start_xmit+0x2d7/0x830
       __dev_queue_xmit+0x1adf/0x3a70
       ip6_finish_output2+0x11fe/0x16a0
       NF_HOOK+0x9e/0x380
       mld_sendpack+0x800/0xd80
       mld_ifc_work+0x835/0xde0
       process_scheduled_works+0xae1/0x17b0
       worker_thread+0x8a0/0xda0
       kthread+0x711/0x8a0
       ret_from_fork+0x3fc/0x770
       ret_from_fork_asm+0x1a/0x30

-> #0 (&hsr->seqnr_lock){+.-.}-{3:3}:
       validate_chain+0xb9b/0x2140
       __lock_acquire+0xab9/0xd20
       lock_acquire+0x120/0x360
       _raw_spin_lock_bh+0x36/0x50
       hsr_dev_xmit+0x19a/0x220
       dev_hard_start_xmit+0x2d7/0x830
       __dev_queue_xmit+0x1adf/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
       alb_send_lp_vid+0x324/0x510
       alb_send_learning_packets+0x10d/0x2c0
       bond_alb_monitor+0x3e4/0x1800
       process_scheduled_works+0xae1/0x17b0
       worker_thread+0x8a0/0xda0
       kthread+0x711/0x8a0
       ret_from_fork+0x3fc/0x770
       ret_from_fork_asm+0x1a/0x30

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&qdisc_xmit_lock_key#5);
                               lock(&hsr->seqnr_lock);
                               lock(&qdisc_xmit_lock_key#5);
  lock(&hsr->seqnr_lock);

 *** DEADLOCK ***

9 locks held by kworker/u8:1/13:
 #0: ffff888101283148 ((wq_completion)bond4){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90000107bc0 ((work_completion)(&(&bond->alb_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: bond_alb_monitor+0xf1/0x1800
 #3: ffffffff8e13f1c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #4: ffff88811472d258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#2){+...}-{3:3}, at: __dev_queue_xmit+0x1300/0x3a70
 #5: ffff88802d9c3958 (&qdisc_xmit_lock_key#5){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0
 #6: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x452/0x1160
 #7: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: arp_xmit+0x23/0x270
 #8: ffffffff8e13f1c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70

stack backtrace:
CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bond4 bond_alb_monitor
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 print_circular_bug+0x2ee/0x310
 check_noncircular+0x134/0x160
 validate_chain+0xb9b/0x2140
 __lock_acquire+0xab9/0xd20
 lock_acquire+0x120/0x360
 _raw_spin_lock_bh+0x36/0x50
 hsr_dev_xmit+0x19a/0x220
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1adf/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
 alb_send_lp_vid+0x324/0x510
 alb_send_learning_packets+0x10d/0x2c0
 bond_alb_monitor+0x3e4/0x1800
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
