============================================
WARNING: possible recursive locking detected
6.16.0-rc6-syzkaller-00135-gcf074eca0065 #0 Not tainted
--------------------------------------------
kworker/u8:3/5857 is trying to acquire lock:
ffff888028ab9158 (&qdisc_xmit_lock_key#5){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0

but task is already holding lock:
ffff888030800d58 (&qdisc_xmit_lock_key#5){+.-.}-{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
#5
);
  lock(&qdisc_xmit_lock_key#5);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

13 locks held by kworker/u8:3/5857:
 #0: ffff88802647a148 ((wq_completion)krdsd){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000456fbc0 ((work_completion)(&rtn->rds_tcp_accept_w)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffc90000007be0 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xbe/0x5f0
 #3: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x208/0x1400
 #4: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ip6_finish_output2+0x701/0x16a0
 #5: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #6: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: bond_start_xmit+0x101/0x1a90
 #7: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #8: ffff88802af12258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#2){+...}-{3:3}, at: __dev_queue_xmit+0x1300/0x3a70
 #9: ffff888030800d58 (&qdisc_xmit_lock_key#5){+.-.}-{3:3}, at: sch_direct_xmit+0x153/0x4b0
 #10: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x452/0x1160
 #11: ffffffff8e13f140 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x27e/0x3a70
 #12: ffff888030551258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock#2){+...}-{3:3}, at: __dev_queue_xmit+0x1300/0x3a70

stack backtrace:
CPU: 0 UID: 0 PID: 5857 Comm: kworker/u8:3 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
Workqueue: krdsd rds_tcp_accept_worker
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
 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_start_xmit+0x1207/0x1a90
 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:unwind_get_return_address+0x56/0x90
Code: 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 3b 91 af 00 48 8b 3b e8 93 a3 1a 00 85 c0 74 14 43 80 3c 37 00 <74> 08 48 89 df e8 20 91 af 00 48 8b 03 eb 02 31 c0 5b 41 5e 41 5f
RSP: 0018:ffffc9000456f4a8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffc9000456f510 RCX: 2d404bdea64c7400
RDX: 0000000000000001 RSI: ffffffff8db83ab3 RDI: ffffffff818cb150
RBP: ffffc9000456f550 R08: ffffc9000456fc70 R09: 0000000000000000
R10: ffffc9000456f518 R11: fffff520008adea5 R12: ffff8880253e3980
R13: 0000000000000580 R14: dffffc0000000000 R15: 1ffff920008adea2
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_lru_noprof+0x1c6/0x3d0
 sock_alloc_inode+0x28/0xc0
 alloc_inode+0x6a/0x1b0
 sock_create_lite+0x8b/0x510
 rds_tcp_accept_one+0x13b/0xa70
 rds_tcp_accept_worker+0x3e/0xa0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
