[ 92.162315][ T125] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.21' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 150.400207][ T7] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2664 jiffies s: 2549 root: 0x2/. [ 150.412716][ T7] rcu: blocking rcu_node structures (internal RCU debug): [ 150.419905][ T7] Sending NMI from CPU 0 to CPUs 1: [ 150.425328][ C1] NMI backtrace for cpu 1 [ 150.425357][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 150.425375][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 150.425392][ C1] RIP: 0010:ct_nmi_enter+0xd5/0x170 [ 150.425434][ C1] Code: 66 90 48 c7 c7 c0 dd 94 8a e8 f7 08 00 00 65 48 8b 05 27 86 d5 75 48 c7 c7 c0 dd 94 8a e8 e3 08 00 00 65 48 8b 05 13 86 d5 75 b6 07 00 00 89 c3 83 f8 08 73 6f 48 8b 1c dd 80 19 65 8c 48 8d [ 150.425449][ C1] RSP: 0018:ffffc900001e03f0 EFLAGS: 00000082 [ 150.425465][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 5c2b8e58b7be3100 [ 150.425477][ C1] RDX: 0000000000000000 RSI: ffffffff8a94ddc0 RDI: ffffffff8adf0d20 [ 150.425489][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 150.425499][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 150.425509][ C1] R13: 0000000000000000 R14: ffff8880b8f35800 R15: 0000000000000002 [ 150.425521][ C1] FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 150.425536][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 150.425548][ C1] CR2: 00005555694f9328 CR3: 0000000077796000 CR4: 00000000003506e0 [ 150.425564][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 150.425574][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 150.425585][ C1] Call Trace: [ 150.425596][ C1] [ 150.425605][ C1] irqentry_enter+0x3c/0x50 [ 150.425624][ C1] sysvec_irq_work+0xa/0xc0 [ 150.425641][ C1] asm_sysvec_irq_work+0x16/0x20 [ 150.425664][ C1] RIP: 0010:rcu_read_unlock_special+0x7f/0x510 [ 150.425684][ C1] Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 33 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 [ 150.425698][ C1] RSP: 0018:ffffc900001e04e0 EFLAGS: 00000206 [ 150.425712][ C1] RAX: 5c2b8e58b7be3100 RBX: 1ffff9200003c0a4 RCX: 5c2b8e58b7be3100 [ 150.425725][ C1] RDX: dffffc0000000000 RSI: ffffffff8a8c10a0 RDI: ffffffff8adf0d20 [ 150.425744][ C1] RBP: ffffc900001e05d0 R08: ffffffff90af7307 R09: 1ffffffff215ee60 [ 150.425757][ C1] R10: dffffc0000000000 R11: fffffbfff215ee61 R12: 0000000000000246 [ 150.425770][ C1] R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002 [ 150.425798][ C1] ? __rcu_read_unlock+0xd0/0xd0 [ 150.425818][ C1] ? packet_rcv+0x167/0x13d0 [ 150.425838][ C1] __rcu_read_unlock+0x78/0xd0 [ 150.425855][ C1] ? dev_queue_xmit_nit+0x29/0xbb0 [ 150.425874][ C1] dev_queue_xmit_nit+0xa80/0xbb0 [ 150.425893][ C1] ? dev_queue_xmit_nit+0x29/0xbb0 [ 150.425915][ C1] dev_hard_start_xmit+0x154/0x870 [ 150.425944][ C1] sch_direct_xmit+0x25a/0x4b0 [ 150.425969][ C1] ? mrp_pdu_parse_vecattr_event+0x230/0x230 [ 150.425990][ C1] ? __alloc_skb+0x22a/0x7e0 [ 150.426015][ C1] ? call_timer_fn+0x1a0/0x670 [ 150.426033][ C1] ? __run_timers+0x53e/0x800 [ 150.426054][ C1] __dev_queue_xmit+0x1771/0x37c0 [ 150.426079][ C1] ? __dev_queue_xmit+0x26b/0x37c0 [ 150.426102][ C1] ? netdev_core_pick_tx+0x340/0x340 [ 150.426129][ C1] ? __kmem_cache_alloc_node+0x140/0x260 [ 150.426150][ C1] ? eth_header+0x117/0x200 [ 150.426167][ C1] ? memcpy+0x3c/0x60 [ 150.426185][ C1] ? eth_header+0xe0/0x200 [ 150.426203][ C1] ? llc_sysctl_exit+0x60/0x60 [ 150.426220][ C1] ? lapbeth_data_transmit+0x1f0/0x2a0 [ 150.426240][ C1] ? lapbeth_data_indication+0x3e0/0x3e0 [ 150.426259][ C1] lapb_data_transmit+0x86/0xa0 [ 150.426285][ C1] lapb_transmit_buffer+0x15f/0x1f0 [ 150.426310][ C1] lapb_t1timer_expiry+0x652/0xa70 [ 150.426338][ C1] call_timer_fn+0x1ac/0x670 [ 150.426356][ C1] ? lapb_start_t1timer+0xf0/0xf0 [ 150.426378][ C1] ? call_timer_fn+0xcf/0x670 [ 150.426396][ C1] ? __run_timers+0x800/0x800 [ 150.426418][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 150.426437][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 150.426455][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 150.426473][ C1] ? lapb_start_t1timer+0xf0/0xf0 [ 150.426497][ C1] __run_timers+0x53e/0x800 [ 150.426521][ C1] ? detach_timer+0x350/0x350 [ 150.426542][ C1] ? lock_chain_count+0x20/0x20 [ 150.426571][ C1] run_timer_softirq+0x63/0xf0 [ 150.426589][ C1] handle_softirqs+0x2a1/0x930 [ 150.426618][ C1] ? __irq_exit_rcu+0x13b/0x230 [ 150.426637][ C1] ? do_softirq+0x210/0x210 [ 150.426657][ C1] ? irqtime_account_irq+0xb2/0x1b0 [ 150.426676][ C1] __irq_exit_rcu+0x13b/0x230 [ 150.426694][ C1] ? irq_exit_rcu+0x20/0x20 [ 150.426717][ C1] irq_exit_rcu+0x5/0x20 [ 150.426732][ C1] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 150.426760][ C1] [ 150.426764][ C1] [ 150.426770][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 150.426793][ C1] RIP: 0010:default_idle+0xb/0x10 [ 150.426811][ C1] Code: 48 89 df e8 47 c2 9b f7 e9 44 ff ff ff e8 3d 07 f6 ff 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 66 90 0f 00 2d 57 eb 4e 00 fb f4 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48 [ 150.426825][ C1] RSP: 0018:ffffc90000177de8 EFLAGS: 000002c6 [ 150.426840][ C1] RAX: 5c2b8e58b7be3100 RBX: ffffffff8a37c257 RCX: 5c2b8e58b7be3100 [ 150.426853][ C1] RDX: 0000000000000001 RSI: ffffffff8a8c10a0 RDI: ffffffff8adf0d20 [ 150.426866][ C1] RBP: ffffc90000177f20 R08: ffff8880b8f3580b R09: 1ffff110171e6b01 [ 150.426880][ C1] R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000000 [ 150.426892][ C1] R13: dffffc0000000000 R14: ffff88813fef9dc0 R15: 1ffff9200002efc8 [ 150.426908][ C1] ? default_idle_call+0x77/0xc0 [ 150.426931][ C1] default_idle_call+0x84/0xc0 [ 150.426949][ C1] do_idle+0x3a2/0x680 [ 150.426978][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 150.427003][ C1] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 150.427023][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 150.427042][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 150.427061][ C1] ? _raw_spin_unlock+0x40/0x40 [ 150.427084][ C1] cpu_startup_entry+0x3f/0x60 [ 150.427110][ C1] start_secondary+0xe4/0xf0 [ 150.427133][ C1] secondary_startup_64_no_verify+0xcf/0xdb [ 150.427165][ C1] [ 150.427172][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.844 msecs