------------[ cut here ]------------ no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0 WARNING: net/mac80211/rate.c:406 at __rate_control_send_low+0x524/0x800 net/mac80211/rate.c:401, CPU#0: pool_workqueue_/3 Modules linked in: CPU: 0 UID: 0 PID: 3 Comm: pool_workqueue_ Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__rate_control_send_low+0x5bb/0x800 net/mac80211/rate.c:401 Code: ff 4c 8b 7c 24 08 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 d3 01 00 00 41 8b 0f 4c 89 f7 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 <67> 48 0f b9 3a 4c 8b 74 24 30 e9 81 fe ff ff 44 89 f9 80 e1 07 80 RSP: 0000:ffffc900000076b8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000000000000000c RCX: 0000000000000000 RDX: 00000000ffffffff RSI: 0000000000000000 RDI: ffffffff90423d70 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000100 R12: ffff888033722ca8 R13: 0000000000000000 R14: ffffffff90423d70 R15: ffff88808e3831f8 FS: 0000000000000000(0000) GS:ffff88812528a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002d41aff8 CR3: 0000000076298000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffafffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: rate_control_send_low+0x1a7/0x7b0 net/mac80211/rate.c:429 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:943 ieee80211_beacon_get_finish+0x3af/0x6f0 net/mac80211/tx.c:5434 ieee80211_beacon_get_ap+0x196a/0x2040 net/mac80211/tx.c:-1 __ieee80211_beacon_get+0x118e/0x1880 net/mac80211/tx.c:5705 ieee80211_beacon_get_tim+0xbd/0x2c0 net/mac80211/tx.c:5847 ieee80211_beacon_get include/net/mac80211.h:5848 [inline] mac80211_hwsim_beacon_tx+0x3c5/0x870 drivers/net/wireless/virtual/mac80211_hwsim.c:2497 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:808 mac80211_hwsim_beacon+0xbb/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:2531 __run_hrtimer kernel/time/hrtimer.c:1930 [inline] __hrtimer_run_queues+0x3c0/0xa20 kernel/time/hrtimer.c:1994 hrtimer_run_softirq+0x17a/0x240 kernel/time/hrtimer.c:2011 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lockdep_unregister_key+0x2d5/0x350 kernel/locking/lockdep.c:6616 Code: 11 0a 09 00 89 c6 48 c7 c7 30 b8 41 96 e8 c3 8c 09 0a 90 e9 65 fe ff ff e8 38 cb 06 0a 41 f7 c7 00 02 00 00 74 b3 fb 40 84 ed <75> b2 eb c3 90 0f 0b 90 e9 26 ff ff ff 90 0f 0b 90 e9 2e ff ff ff RSP: 0000:ffffc90000087c90 EFLAGS: 00000202 RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000046 RDX: ffffffff93fd3398 RSI: ffffffff8dfc06c8 RDI: ffffffff8c28af60 RBP: ffff88801d699e01 R08: ffffffff81af2f28 R09: ffffffff8e95cda0 R10: dffffc0000000000 R11: fffff52000010f8d R12: 0000000000000000 R13: ffff88807ac60931 R14: 0000000000001000 R15: 0000000000000a03 wq_unregister_lockdep kernel/workqueue.c:4941 [inline] pwq_release_workfn+0x6d1/0x8c0 kernel/workqueue.c:5237 kthread_worker_fn+0x4ee/0xb20 kernel/kthread.c:1025 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: ff 4c 8b 7c decl 0x7c(%rbx,%rcx,4) 4: 24 08 and $0x8,%al 6: 48 8b 44 24 38 mov 0x38(%rsp),%rax b: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax f: 84 c0 test %al,%al 11: 0f 85 d3 01 00 00 jne 0x1ea 17: 41 8b 0f mov (%r15),%ecx 1a: 4c 89 f7 mov %r14,%rdi 1d: 48 8b 74 24 18 mov 0x18(%rsp),%rsi 22: 44 8b 44 24 2c mov 0x2c(%rsp),%r8d 27: 45 89 e9 mov %r13d,%r9d * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 4c 8b 74 24 30 mov 0x30(%rsp),%r14 34: e9 81 fe ff ff jmp 0xfffffeba 39: 44 89 f9 mov %r15d,%ecx 3c: 80 e1 07 and $0x7,%cl 3f: 80 .byte 0x80