------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: CPU: 0 PID: 0 at net/mac80211/rate.c:398 __rate_control_send_low+0x661/0x780 net/mac80211/rate.c:398 Modules linked in: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__rate_control_send_low+0x661/0x780 net/mac80211/rate.c:398 Code: a4 a0 d4 00 00 00 e8 4e eb b3 f6 44 8b 44 24 24 45 89 e9 89 d9 48 8b 74 24 08 44 89 e2 48 c7 c7 c0 0a 09 8d e8 b0 e2 72 f6 90 <0f> 0b 90 90 e9 26 fd ff ff 48 8b 3c 24 e8 2d 52 19 f7 e9 fb fc ff RSP: 0018:ffffc90000007930 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a02f8 RDX: ffffffff8e2977c0 RSI: ffffffff817a0305 RDI: 0000000000000001 RBP: ffff88804a075a68 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff R13: 0000000000000000 R14: 000000000000000c R15: ffff88804a075a70 FS: 0000000000000000(0000) GS:ffff8880974ba000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002a940000 CR4: 0000000000352ef0 Call Trace: rate_control_send_low+0x29a/0x820 net/mac80211/rate.c:423 rate_control_get_rate+0x1be/0x5e0 net/mac80211/rate.c:934 ieee80211_beacon_get_finish+0x467/0x670 net/mac80211/tx.c:5263 __ieee80211_beacon_get+0xc56/0x1e40 net/mac80211/tx.c:5566 ieee80211_beacon_get_tim+0xa6/0x280 net/mac80211/tx.c:5677 ieee80211_beacon_get include/net/mac80211.h:5663 [inline] mac80211_hwsim_beacon_tx+0x4d9/0xa40 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2e5/0x650 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:797 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82 Code: 3d 64 02 e9 13 0a 03 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 53 75 18 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffffff8e207e08 EFLAGS: 00000286 RAX: 00000000001d1691 RBX: 0000000000000000 RCX: ffffffff8b919b29 RDX: 0000000000000000 RSI: ffffffff8de4f4d1 RDI: ffffffff8c163700 RBP: fffffbfff1c52ef8 R08: 0000000000000001 R09: ffffed1005646655 R10: ffff88802b2332ab R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff8e2977c0 R14: ffffffff90aba990 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:757 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:190 [inline] do_idle+0x391/0x510 kernel/sched/idle.c:330 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428 rest_init+0x16b/0x2b0 init/main.c:744 start_kernel+0x3ee/0x4d0 init/main.c:1097 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:307 x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:288 common_startup_64+0x13e/0x148 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 64 02 e9 fs add %cl,%ch 3: 13 0a adc (%rdx),%ecx 5: 03 00 add (%rax),%eax 7: 0f 1f 00 nopl (%rax) a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: f3 0f 1e fa endbr64 1e: eb 07 jmp 0x27 20: 0f 00 2d 53 75 18 00 verw 0x187553(%rip) # 0x18757a 27: fb sti 28: f4 hlt * 29: c3 ret <-- trapping instruction 2a: cc int3 2b: cc int3 2c: cc int3 2d: cc int3 2e: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 35: 00 00 00 38: 66 90 xchg %ax,%ax 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop