------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 0 PID: 8002 at net/mac80211/rate.c:403 __rate_control_send_low+0x5df/0x820
Modules linked in:
CPU: 0 UID: 0 PID: 8002 Comm: syz.0.579 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
RIP: 0010:__rate_control_send_low+0x5df/0x820
Code: 38 0f b6 04 28 84 c0 0f 85 d7 01 00 00 41 8b 0f 48 c7 c7 20 72 b0 8c 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 e8 b2 fc 92 f6 90 <0f> 0b 90 90 e9 73 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90000007538 EFLAGS: 00010246
RAX: a02e3ef9723d9700 RBX: 000000000000000c RCX: ffff88801f1d9cc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: ffff8880270d6928
R13: 0000000000000000 R14: ffff8881131f0e40 R15: ffff8881131f30d8
FS:  00007ff198b496c0(0000) GS:ffff8880b8618000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff197d74c40 CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 rate_control_send_low+0x194/0x7a0
 rate_control_get_rate+0x20b/0x5d0
 ieee80211_beacon_get_finish+0x39a/0x6c0
 ieee80211_beacon_get_ap+0x1868/0x1f30
 __ieee80211_beacon_get+0x118e/0x1880
 ieee80211_beacon_get_tim+0xb4/0x2b0
 mac80211_hwsim_beacon_tx+0x3ce/0x860
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:__sanitizer_cov_trace_cmp8+0x18/0x90
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 80 a0 92 65 8b 15 88 d2 e0 10 <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 57 83 b9 3c 16 00 00
RSP: 0018:ffffc90002d3f310 EFLAGS: 00000293
RAX: ffffffff822e30dd RBX: 000000000002856b RCX: ffff88801f1d9cc0
RDX: 0000000080000001 RSI: 0000000000001000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff94000142b59 R12: 000000000002856b
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000001000
 page_ext_lookup+0x4d/0x180
 page_table_check_clear+0x278/0x700
 unmap_page_range+0x3445/0x4370
 unmap_vmas+0x399/0x580
 exit_mmap+0x248/0xb50
 __mmput+0x118/0x420
 exit_mm+0x1da/0x2c0
 do_exit+0x648/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff197d8ebe9
Code: Unable to access opcode bytes at 0x7ff197d8ebbf.
RSP: 002b:00007ff198b490e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ff197fb5fa8 RCX: 00007ff197d8ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff197fb5fa8
RBP: 00007ff197fb5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff197fb6038 R14: 00007ffd77c971c0 R15: 00007ffd77c972a8
 </TASK>
