------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: net/mac80211/rate.c:411 at __rate_control_send_low+0x652/0x900, CPU#0: kworker/u8:2/5652
Modules linked in:
CPU: 0 UID: 0 PID: 5652 Comm: kworker/u8:2 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
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:__rate_control_send_low+0x67c/0x900
Code: 48 8b 34 24 48 8b 44 24 20 42 0f b6 04 38 84 c0 0f 85 da 01 00 00 8b 0e 4c 89 f7 48 8b 74 24 10 44 8b 44 24 1c 44 8b 4c 24 0c <67> 48 0f b9 3a e9 36 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90004c6e418 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000000c RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff91af8110
RBP: ffff88816b613300 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: ffff88816b610fa0
R13: ffff888025b2a328 R14: ffffffff91af8110 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88818c01f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ec5d13270 CR3: 0000000114286000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 rate_control_send_low+0x1a7/0x7b0
 rate_control_get_rate+0x20b/0x5d0
 ieee80211_tx_h_rate_ctrl+0x8e0/0x1800
 invoke_tx_handlers_late+0xb5/0x1a10
 ieee80211_tx_dequeue+0x40b5/0x5830
 ieee80211_hwsim_wake_tx_queue+0xbb/0x150
 ieee80211_queue_skb+0x1918/0x22e0
 ieee80211_tx+0x2c2/0x4b0
 __ieee80211_subif_start_xmit+0xfd6/0x1840
 ieee80211_subif_start_xmit+0xee/0x560
 dev_hard_start_xmit+0x2cd/0x830
 sch_direct_xmit+0x257/0x4c0
 __qdisc_run+0xb11/0x1620
 __dev_queue_xmit+0x1c2c/0x3920
 ip6_output+0x337/0x540
 ndisc_send_skb+0xcb2/0x1650
 addrconf_dad_completed+0x911/0xe60
 addrconf_dad_work+0xcf8/0x15c0
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
