------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40 WARNING: CPU: 0 PID: 0 at net/mac80211/rate.c:385 __rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380 Code: 30 42 0f b6 04 28 84 c0 0f 85 e6 01 00 00 41 8b 0e 48 c7 c7 00 d1 de 8b 48 8b 74 24 10 44 8b 44 24 1c 45 89 e1 e8 9b 7d 56 f7 <0f> 0b e9 78 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fa ff RSP: 0018:ffffc90000007540 EFLAGS: 00010246 RAX: 61f887b9d0c16f00 RBX: 000000000000000c RCX: ffffffff8ce93440 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000084 R08: ffffc90000007147 R09: 1ffff92000000e28 R10: dffffc0000000000 R11: fffff52000000e29 R12: 0000000000000040 R13: dffffc0000000000 R14: ffff8880622c3358 R15: ffff888067487168 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000121030 CR3: 00000000763fd000 CR4: 00000000003506f0 Call Trace: rate_control_send_low+0x194/0x790 net/mac80211/rate.c:405 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:921 ieee80211_beacon_get_finish+0x3a2/0x6e0 net/mac80211/tx.c:5228 ieee80211_beacon_get_ap+0x15a7/0x1b20 net/mac80211/tx.c:5331 __ieee80211_beacon_get+0x10eb/0x1600 net/mac80211/tx.c:5427 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5569 ieee80211_beacon_get include/net/mac80211.h:5440 [inline] mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295 __run_hrtimer kernel/time/hrtimer.c:1750 [inline] __hrtimer_run_queues+0x52a/0xc40 kernel/time/hrtimer.c:1814 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:tick_nohz_idle_enter+0x1c6/0x260 kernel/time/tick-sched.c:1175 Code: 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 92 00 00 00 80 0b 01 48 89 df e8 a8 00 00 00 e8 d3 dd 12 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48 RSP: 0018:ffffffff8ce07d00 EFLAGS: 00000286 RAX: 61f887b9d0c16f00 RBX: ffff8880b8e2c040 RCX: 61f887b9d0c16f00 RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: ffffffff8b1c82e0 RBP: ffffffff8ce07d90 R08: ffffffff8e8adeaf R09: 1ffffffff1d15bd5 R10: dffffc0000000000 R11: fffffbfff1d15bd6 R12: 1ffffffff19c0fa0 R13: 1ffffffff19c0fbc R14: 0000000000000000 R15: dffffc0000000000 do_idle+0x9a/0x4e0 kernel/sched/idle.c:256 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:380 rest_init+0x2e2/0x300 init/main.c:744 arch_call_rest_init+0xe/0x10 init/main.c:841 start_kernel+0x459/0x4e0 init/main.c:1086 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0x60/0x60 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess): 0: 48 c1 e8 03 shr $0x3,%rax 4: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 9: 84 c0 test %al,%al b: 0f 85 92 00 00 00 jne 0xa3 11: 80 0b 01 orb $0x1,(%rbx) 14: 48 89 df mov %rbx,%rdi 17: e8 a8 00 00 00 call 0xc4 1c: e8 d3 dd 12 00 call 0x12ddf4 21: fb sti 22: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp) 29: 45 * 2a: 4b c7 04 3c 00 00 00 movq $0x0,(%r12,%r15,1) <-- trapping instruction 31: 00 32: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 39: 00 00 3b: 48 3b 44 24 48 cmp 0x48(%rsp),%rax