------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40 WARNING: CPU: 1 PID: 4249 at net/mac80211/rate.c:376 __rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Modules linked in: CPU: 1 PID: 4249 Comm: kworker/u4:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: netns cleanup_net RIP: 0010:__rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Code: 0f b6 04 28 84 c0 0f 85 e9 01 00 00 48 8b 44 24 08 8b 08 48 c7 c7 20 ed 18 8b 4c 89 f6 44 8b 44 24 14 45 89 f9 e8 b0 54 68 00 <0f> 0b e9 72 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 08 fa ff RSP: 0000:ffffc90000dd0768 EFLAGS: 00010246 RAX: c739017740d6d200 RBX: 000000000000000c RCX: ffff88802b663b80 RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000 RBP: 0000000000000084 R08: dffffc0000000000 R09: fffff520001ba051 R10: fffff520001ba051 R11: 1ffff920001ba050 R12: ffff88805f5be668 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000040 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34e17ff8 CR3: 0000000024b09000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rate_control_send_low+0x194/0x790 net/mac80211/rate.c:396 rate_control_get_rate+0x207/0x5c0 net/mac80211/rate.c:908 __ieee80211_beacon_get+0x1512/0x1f80 net/mac80211/tx.c:5175 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202 ieee80211_beacon_get include/net/mac80211.h:4983 [inline] mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766 handle_softirqs+0x328/0x820 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:331 [inline] RIP: 0010:rcu_is_watching+0x31/0xa0 kernel/rcu/tree.c:1123 Code: 05 0c c0 9e 7e e8 1f ae 45 08 89 c3 83 f8 08 73 5c 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 20 38 bc 8b 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 70 82 58 00 48 c7 c3 08 b3 03 00 RSP: 0000:ffffc9000308f900 EFLAGS: 00000a06 RAX: 1ffffffff1778705 RBX: 0000000000000001 RCX: c739017740d6d200 RDX: 0000000000000000 RSI: ffffffff8a59a860 RDI: ffffffff8a59a820 RBP: ffffc9000308fa30 R08: dffffc0000000000 R09: fffffbfff1ad334e R10: fffffbfff1ad334e R11: 1ffffffff1ad334d R12: 000000000003a7fb R13: dffffc0000000000 R14: ffffffff8bbc3828 R15: dffffc0000000000 trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0xba/0x870 kernel/locking/lockdep.c:5634 rcu_read_unlock include/linux/rcupdate.h:773 [inline] inet_twsk_purge+0x77d/0x810 net/ipv4/inet_timewait_sock.c:309 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x77b/0xb80 net/core/net_namespace.c:635 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 ---------------- Code disassembly (best guess): 0: 05 0c c0 9e 7e add $0x7e9ec00c,%eax 5: e8 1f ae 45 08 call 0x845ae29 a: 89 c3 mov %eax,%ebx c: 83 f8 08 cmp $0x8,%eax f: 73 5c jae 0x6d 11: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 18: fc ff df 1b: 4c 8d 34 dd 20 38 bc lea -0x7443c7e0(,%rbx,8),%r14 22: 8b 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 70 82 58 00 call 0x5882a9 39: 48 c7 c3 08 b3 03 00 mov $0x3b308,%rbx