------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: net/mac80211/rate.c:406 at __rate_control_send_low+0x524/0x800, CPU#1: pool_workqueue_/3
Modules linked in:
CPU: 1 UID: 0 PID: 3 Comm: pool_workqueue_ Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__rate_control_send_low+0x5bb/0x800
Code: ff 4c 8b 7c 24 08 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 d3 01 00 00 41 8b 0f 4c 89 f7 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 <67> 48 0f b9 3a 4c 8b 74 24 30 e9 81 fe ff ff 44 89 f9 80 e1 07 80
RSP: 0000:ffffc90000a08858 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000000c RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff8fdfb990
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000100 R12: ffff888110dd19a8
R13: 0000000000000000 R14: ffffffff8fdfb990 R15: ffff88816b963138
FS:  0000000000000000(0000) GS:ffff8882a9924000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d1c000020 CR3: 00000001b1aac000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 rate_control_send_low+0x1a7/0x7b0
 rate_control_get_rate+0x20b/0x5d0
 ieee80211_beacon_get_finish+0x3af/0x6f0
 __ieee80211_beacon_get+0xd3d/0x1880
 ieee80211_beacon_get_tim+0xbd/0x2c0
 mac80211_hwsim_beacon_tx+0x3c5/0x870
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x180
 __hrtimer_run_queues+0x527/0xc30
 hrtimer_run_softirq+0x187/0x2b0
 handle_softirqs+0x22a/0x7c0
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lockdep_unregister_key+0x2d5/0x350
Code: 31 08 09 00 89 c6 48 c7 c7 70 f8 d7 95 e8 03 2d dc 09 90 e9 65 fe ff ff e8 88 89 d9 09 41 f7 c7 00 02 00 00 74 b3 fb 40 84 ed <75> b2 eb c3 90 0f 0b 90 e9 26 ff ff ff 90 0f 0b 90 e9 2e ff ff ff
RSP: 0000:ffffc90000087c08 EFLAGS: 00000246
RAX: 0000000000000046 RBX: ffff8881ac2ff138 RCX: 0000000000000046
RDX: ffffffff939373d8 RSI: ffffffff8daeeb15 RDI: ffffffff8be74c00
RBP: ffff888160a8ba00 R08: ffffffff81ac9ff8 R09: ffffffff8e35a360
R10: dffffc0000000000 R11: fffffbfff1f9df0f R12: 0000000000000000
R13: ffff8881ac2ff139 R14: 0000000000001000 R15: 0000000000000a83
 pwq_release_workfn+0x6d5/0x870
 kthread_worker_fn+0x4ee/0xb00
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
