------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: net/mac80211/rate.c:401 at __rate_control_send_low+0x610/0x760 net/mac80211/rate.c:401, CPU#2: syz.2.496/7677
Modules linked in:
CPU: 2 UID: 0 PID: 7677 Comm: syz.2.496 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__rate_control_send_low+0x621/0x760 net/mac80211/rate.c:401
Code: f7 48 8b 44 24 10 8b ac a8 d4 00 00 00 e8 77 23 02 f7 48 8d 3d f0 99 e3 05 44 8b 44 24 04 48 8b 74 24 10 45 89 f1 89 d9 89 ea <67> 48 0f b9 3a e9 2f fd ff ff 48 8b 7c 24 08 e8 5b b1 6e f7 e9 03
RSP: 0018:ffffc90000648890 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff90ea73a0
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000c R11: 0000000000000000 R12: ffff888025a377e8
R13: ffff88802bb83168 R14: 0000000000000000 R15: dffffc0000000000
FS:  00005555621e9500(0000) GS:ffff8880d653c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000080 CR3: 0000000037d3e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rate_control_send_low+0x2a8/0x7e0 net/mac80211/rate.c:429
 rate_control_get_rate+0x1be/0x5c0 net/mac80211/rate.c:943
 ieee80211_beacon_get_finish+0x45a/0x690 net/mac80211/tx.c:5367
 __ieee80211_beacon_get_ap+0x76e/0x10d0 net/mac80211/tx.c:5470
 ieee80211_beacon_get_ap net/mac80211/tx.c:5532 [inline]
 __ieee80211_beacon_get+0x14fa/0x1ee0 net/mac80211/tx.c:5638
 ieee80211_beacon_get_tim+0xa6/0x280 net/mac80211/tx.c:5780
 ieee80211_beacon_get include/net/mac80211.h:5720 [inline]
 mac80211_hwsim_beacon_tx+0x4d6/0xa00 drivers/net/wireless/virtual/mac80211_hwsim.c:2361
 __iterate_interfaces+0x2e6/0x650 net/mac80211/util.c:760
 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:796
 mac80211_hwsim_beacon+0x105/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2395
 __run_hrtimer kernel/time/hrtimer.c:1785 [inline]
 __hrtimer_run_queues+0x50e/0xa70 kernel/time/hrtimer.c:1849
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1866
 handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 3a 3e 51 f6 48 89 df e8 22 8e 51 f6 e8 ed 2a 7d f6 fb bf 01 00 00 00 <e8> d2 ae 41 f6 65 8b 05 cb 6e 7a 08 85 c0 74 06 5b c3 cc cc cc cc
RSP: 0018:ffffc9000e047c98 EFLAGS: 00000202
RAX: 000000000000b6fb RBX: ffff88802c4c8940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8de79dfe RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000021
R13: ffff88802c4c8d40 R14: dffffc0000000000 R15: ffff8880358e0000
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x195a/0x21e0 kernel/signal.c:3037
 arch_do_signal_or_restart+0x91/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x67c/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6c9899c819
Code: Unable to access opcode bytes at 0x7f6c9899c7ef.
RSP: 002b:00007ffc159dab78 EFLAGS: 00000246
RAX: fffffffffffffffc RBX: 000000000001ace0 RCX: 00007f6c9899c819
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6c98c15fac
RBP: 0000000000000032 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc159dac80 R11: 0000000000000246 R12: 00007ffc159daca0
R13: 00007f6c98c15fac R14: 000000000001ad12 R15: 00007ffc159dac80
 </TASK>
----------------
Code disassembly (best guess):
   0:	f7 48 8b 44 24 10 8b 	testl  $0x8b102444,-0x75(%rax)
   7:	ac                   	lods   %ds:(%rsi),%al
   8:	a8 d4                	test   $0xd4,%al
   a:	00 00                	add    %al,(%rax)
   c:	00 e8                	add    %ch,%al
   e:	77 23                	ja     0x33
  10:	02 f7                	add    %bh,%dh
  12:	48 8d 3d f0 99 e3 05 	lea    0x5e399f0(%rip),%rdi        # 0x5e39a09
  19:	44 8b 44 24 04       	mov    0x4(%rsp),%r8d
  1e:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  23:	45 89 f1             	mov    %r14d,%r9d
  26:	89 d9                	mov    %ebx,%ecx
  28:	89 ea                	mov    %ebp,%edx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 2f fd ff ff       	jmp    0xfffffd63
  34:	48 8b 7c 24 08       	mov    0x8(%rsp),%rdi
  39:	e8 5b b1 6e f7       	call   0xf76eb199
  3e:	e9                   	.byte 0xe9
  3f:	03                   	.byte 0x3