------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40 WARNING: CPU: 1 PID: 4827 at net/mac80211/rate.c:376 __rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371 Modules linked in: CPU: 1 PID: 4827 Comm: kworker/u4:8 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: bat_events batadv_nc_worker 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 e0 e8 18 8b 4c 89 f6 44 8b 44 24 14 45 89 f9 e8 20 4c 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: 0018:ffffc90000dd0768 EFLAGS: 00010246 RAX: ee848981dae9ef00 RBX: 000000000000000c RCX: ffff888020cb5940 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000000084 R08: dffffc0000000000 R09: fffff520001ba051 R10: fffff520001ba051 R11: 1ffff920001ba050 R12: ffff888060b96528 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000040 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5587ad000 CR3: 0000000063766000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 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:debug_lockdep_rcu_enabled+0xb/0x30 kernel/rcu/update.c:280 Code: 0b 8a 48 c7 c6 40 3b 0b 8a e8 c1 33 f5 ff 0f 0b eb d1 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 31 c0 83 3d 7b 62 c0 03 00 74 1d <83> 3d f2 94 c0 03 00 74 14 65 48 8b 0d 64 3b 59 76 31 c0 83 b9 ec RSP: 0018:ffffc90003bc7bd8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ee848981dae9ef00 RDX: 0000000000000000 RSI: ffffffff8a0b2ac0 RDI: ffffffff8a59a4c0 RBP: ffff88814807df00 R08: dffffc0000000000 R09: fffffbfff1ff7a19 R10: fffffbfff1ff7a19 R11: 1ffffffff1ff7a18 R12: 00000000000000cd R13: ffff888019b90668 R14: ffff88807dac8c80 R15: ffff88814807df10 rcu_read_lock include/linux/rcupdate.h:740 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0xce/0x5c0 net/batman-adv/network-coding.c:723 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