Warning: Permanently added '10.128.1.93' (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 [ 86.719349][ T1108] cfg80211: failed to load regulatory.db [ 177.366686][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 177.373873][ C1] rcu: 0-....: (1 GPs behind) idle=d65/1/0x4000000000000002 softirq=5744/5745 fqs=2100 [ 177.384300][ C1] (detected by 1, t=10506 jiffies, g=5997, q=445) [ 177.390959][ C1] Sending NMI from CPU 1 to CPUs 0: [ 177.396219][ C0] NMI backtrace for cpu 0 [ 177.396239][ C0] CPU: 0 PID: 4278 Comm: syz-executor419 Not tainted syzkaller #0 [ 177.396257][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 177.396276][ C0] RIP: 0010:rcu_is_watching+0x56/0xa0 [ 177.396327][ C0] Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 60 73 59 00 48 c7 c3 08 b3 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 2b 8b 03 65 ff 0d e5 d1 9d 7e 74 08 24 01 5b 41 5e 41 5f [ 177.396343][ C0] RSP: 0018:ffffc900031ded40 EFLAGS: 00000802 [ 177.396359][ C0] RAX: 0000000000000000 RBX: ffff8880b903b308 RCX: 9c30755b09ccef00 [ 177.396372][ C0] RDX: 0000000000000000 RSI: ffffffff8a7a2a20 RDI: ffffffff8a7a29e0 [ 177.396384][ C0] RBP: ffffc900031dee80 R08: ffffffff8d8aeaef R09: 1ffffffff1b15d5d [ 177.396397][ C0] R10: dffffc0000000000 R11: fffffbfff1b15d5e R12: 00000000ffffffe4 [ 177.396410][ C0] R13: 1ffff9200063bdb0 R14: ffffffff8be3a820 R15: dffffc0000000000 [ 177.396423][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 177.396438][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 177.396450][ C0] CR2: 0000000000000004 CR3: 00000000716fe000 CR4: 00000000003506f0 [ 177.396465][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 177.396477][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 177.396489][ C0] Call Trace: [ 177.396495][ C0] [ 177.396503][ C0] perf_event_output_forward+0x1ef/0x2e0 [ 177.396526][ C0] ? perf_get_page_size+0x430/0x430 [ 177.396546][ C0] ? perf_event_output_forward+0x261/0x2e0 [ 177.396565][ C0] ? perf_get_page_size+0x430/0x430 [ 177.396584][ C0] ? __perf_event_account_interrupt+0x187/0x280 [ 177.396604][ C0] __perf_event_overflow+0x35f/0x550 [ 177.396626][ C0] perf_swevent_event+0x4b8/0x540 [ 177.396647][ C0] perf_tp_event+0x324/0xbe0 [ 177.396668][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 177.396687][ C0] ? perf_tp_event+0xa7e/0xbe0 [ 177.396724][ C0] ? update_load_avg+0xc64/0x11c0 [ 177.396748][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 177.396770][ C0] perf_trace_preemptirq_template+0x2aa/0x360 [ 177.396791][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 177.396816][ C0] ? trace_event_raw_event_preemptirq_template+0x290/0x290 [ 177.396836][ C0] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 177.396860][ C0] ? lock_chain_count+0x20/0x20 [ 177.396882][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 177.396899][ C0] trace_irq_enable_rcuidle+0x108/0x180 [ 177.396920][ C0] trace_hardirqs_on+0x57/0x80 [ 177.396938][ C0] asm_sysvec_irq_work+0x16/0x20 [ 177.396956][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 [ 177.396983][ C0] 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 c2 22 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 [ 177.396997][ C0] RSP: 0018:ffffc900031df3e0 EFLAGS: 00000206 [ 177.397011][ C0] RAX: 9c30755b09ccef00 RBX: 1ffff9200063be80 RCX: 9c30755b09ccef00 [ 177.397024][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a2a40 [ 177.397037][ C0] RBP: ffffc900031df4b0 R08: ffffffff901e90c7 R09: 1ffffffff203d218 [ 177.397050][ C0] R10: dffffc0000000000 R11: fffffbfff203d219 R12: ffffffff8c323400 [ 177.397063][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 177.397086][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 177.397103][ C0] ? rcu_lock_acquire+0x30/0x30 [ 177.397126][ C0] __rcu_read_unlock+0x78/0xd0 [ 177.397145][ C0] __unlock_page_memcg+0xea/0x100 [ 177.397163][ C0] unmap_page_range+0xee4/0x2410 [ 177.397199][ C0] unmap_vmas+0x131/0x250 [ 177.397216][ C0] ? unmap_page_range+0x2410/0x2410 [ 177.397232][ C0] ? __mutex_lock_common+0x435/0x2400 [ 177.397260][ C0] exit_mmap+0x3b9/0x640 [ 177.397281][ C0] ? vm_brk+0x20/0x20 [ 177.397306][ C0] ? uprobe_clear_state+0x2f6/0x460 [ 177.397327][ C0] __mmput+0x115/0x390 [ 177.397347][ C0] exit_mm+0x632/0x7b0 [ 177.397362][ C0] ? perf_pmu_migrate_context+0xb70/0xb70 [ 177.397382][ C0] ? acct_collect+0x547/0x710 [ 177.397403][ C0] ? do_exit+0x2110/0x2110 [ 177.397419][ C0] ? taskstats_exit+0x451/0xae0 [ 177.397443][ C0] do_exit+0x5b8/0x2110 [ 177.397462][ C0] ? rcu_nmi_exit+0x6f/0xf0 [ 177.397480][ C0] ? put_task_struct+0x80/0x80 [ 177.397505][ C0] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 177.397530][ C0] ? _raw_spin_lock_irq+0xb7/0xf0 [ 177.397553][ C0] do_group_exit+0x12c/0x2f0 [ 177.397569][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 177.397594][ C0] get_signal+0x7eb/0x12e0 [ 177.397622][ C0] arch_do_signal_or_restart+0xe6/0x12a0 [ 177.397649][ C0] ? perf_trace_run_bpf_submit+0xf3/0x1c0 [ 177.397679][ C0] ? get_sigframe_size+0x10/0x10 [ 177.397700][ C0] ? rcu_nmi_exit+0x6f/0xf0 [ 177.397726][ C0] ? exit_to_user_mode_loop+0x3b/0x130 [ 177.397745][ C0] exit_to_user_mode_loop+0x9e/0x130 [ 177.397762][ C0] exit_to_user_mode_prepare+0xee/0x180 [ 177.397780][ C0] syscall_exit_to_user_mode+0x16/0x40 [ 177.397799][ C0] do_syscall_64+0x58/0xa0 [ 177.397814][ C0] ? clear_bhb_loop+0x30/0x80 [ 177.397830][ C0] ? clear_bhb_loop+0x30/0x80 [ 177.397848][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 177.397865][ C0] RIP: 0033:0x7fb9384ac059 [ 177.397890][ C0] Code: Unable to access opcode bytes at RIP 0x7fb9384ac02f. [ 177.397898][ C0] RSP: 002b:00007fb93846b228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 177.397916][ C0] RAX: fffffffffffffe00 RBX: 00007fb93846bcdc RCX: 00007fb9384ac059 [ 177.397929][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb93855cb38 [ 177.397939][ C0] RBP: 00002000000003c0 R08: 0000000000000000 R09: 0000000000000000 [ 177.397950][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb93855cb38 [ 177.397961][ C0] R13: 00007fb93855cb30 R14: 00007ffc27b27380 R15: 00007ffc27b27468 [ 177.397988][ C0] [ 177.397995][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.776 msecs [ 178.836824][ T4209] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10653 jiffies s: 545 root: 0x1/. [ 178.849265][ T4209] rcu: blocking rcu_node structures (internal RCU debug): [ 178.856432][ T4209] Task dump for CPU 0: [ 178.860592][ T4209] task:syz-executor419 state:R running task stack:25808 pid: 4278 ppid: 4195 flags:0x0000400a [ 178.871456][ T4209] Call Trace: [ 178.874767][ T4209] [ 178.877759][ T4209] ? perf_trace_preemptirq_template+0x2aa/0x360 [ 178.884043][ T4209] ? asm_sysvec_irq_work+0x16/0x20 [ 178.889302][ T4209] ? trace_event_raw_event_preemptirq_template+0x290/0x290 [ 178.896540][ T4209] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 178.902604][ T4209] ? lock_chain_count+0x20/0x20 [ 178.907529][ T4209] ? asm_sysvec_irq_work+0x16/0x20 [ 178.912674][ T4209] ? trace_irq_enable_rcuidle+0x108/0x180 [ 178.918461][ T4209] ? trace_hardirqs_on+0x57/0x80 [ 178.923434][ T4209] ? asm_sysvec_irq_work+0x16/0x20 [ 178.928621][ T4209] ? rcu_read_unlock_special+0x7f/0x4a0 [ 178.934210][ T4209] ? __rcu_read_unlock+0xd0/0xd0 [ 178.939267][ T4209] ? rcu_lock_acquire+0x30/0x30 [ 178.944166][ T4209] ? __rcu_read_unlock+0x78/0xd0 [ 178.949166][ T4209] ? __unlock_page_memcg+0xea/0x100 [ 178.954401][ T4209] ? unmap_page_range+0xee4/0x2410 [ 178.959610][ T4209] ? unmap_vmas+0x131/0x250 [ 178.964154][ T4209] ? unmap_page_range+0x2410/0x2410 [ 178.969425][ T4209] ? __mutex_lock_common+0x435/0x2400 [ 178.974855][ T4209] ? exit_mmap+0x3b9/0x640 [ 178.979777][ T4209] ? vm_brk+0x20/0x20 [ 178.983805][ T4209] ? uprobe_clear_state+0x2f6/0x460 [ 178.989130][ T4209] ? __mmput+0x115/0x390 [ 178.993419][ T4209] ? exit_mm+0x632/0x7b0 [ 178.997734][ T4209] ? perf_pmu_migrate_context+0xb70/0xb70 [ 179.003502][ T4209] ? acct_collect+0x547/0x710 [ 179.008249][ T4209] ? do_exit+0x2110/0x2110 [ 179.012712][ T4209] ? taskstats_exit+0x451/0xae0 [ 179.017638][ T4209] ? do_exit+0x5b8/0x2110 [ 179.022019][ T4209] ? rcu_nmi_exit+0x6f/0xf0 [ 179.026551][ T4209] ? put_task_struct+0x80/0x80 [ 179.031395][ T4209] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 179.037680][ T4209] ? _raw_spin_lock_irq+0xb7/0xf0 [ 179.042752][ T4209] ? do_group_exit+0x12c/0x2f0 [ 179.047586][ T4209] ? lockdep_hardirqs_on+0x94/0x140 [ 179.052820][ T4209] ? get_signal+0x7eb/0x12e0 [ 179.057499][ T4209] ? arch_do_signal_or_restart+0xe6/0x12a0 [ 179.063360][ T4209] ? perf_trace_run_bpf_submit+0xf3/0x1c0 [ 179.069162][ T4209] ? get_sigframe_size+0x10/0x10 [ 179.074166][ T4209] ? rcu_nmi_exit+0x6f/0xf0 [ 179.078749][ T4209] ? exit_to_user_mode_loop+0x3b/0x130 [ 179.084246][ T4209] ? exit_to_user_mode_loop+0x9e/0x130 [ 179.089825][ T4209] ? exit_to_user_mode_prepare+0xee/0x180 [ 179.095577][ T4209] ? syscall_exit_to_user_mode+0x16/0x40 [ 179.101268][ T4209] ? do_syscall_64+0x58/0xa0 [ 179.105889][ T4209] ? clear_bhb_loop+0x30/0x80 [ 179.110627][ T4209] ? clear_bhb_loop+0x30/0x80 [ 179.115349][ T4209] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 179.121509][ T4209]