[ 91.974416][ T10] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.10.3' (ED25519) to the list of known hosts. 2026/08/15 16:04:47 parsed 1 programs 2026/08/15 16:04:47 executed programs: 0 [ 92.801201][ T5779] cgroup: Unknown subsys name 'cpuset' [ 93.254768][ T5779] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.262551][ T5779] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.270039][ T5779] bridge_slave_0: entered allmulticast mode [ 93.277720][ T5779] bridge_slave_0: entered promiscuous mode [ 93.286604][ T5779] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.293970][ T5779] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.301304][ T5779] bridge_slave_1: entered allmulticast mode [ 93.308686][ T5779] bridge_slave_1: entered promiscuous mode [ 93.344427][ T5779] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.356476][ T5779] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.393098][ T5779] team0: Port device team_slave_0 added [ 93.402244][ T5779] team0: Port device team_slave_1 added [ 93.433276][ T5779] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.440267][ T5779] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 93.466655][ T5779] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 93.479136][ T5779] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 93.486266][ T5779] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 93.512268][ T5779] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.554639][ T5779] hsr_slave_0: entered promiscuous mode [ 93.561373][ T5779] hsr_slave_1: entered promiscuous mode [ 93.689869][ T5779] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.697204][ T5779] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.704725][ T5779] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.712114][ T5779] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.765878][ T5779] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.787026][ T517] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.796126][ T517] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.813346][ T5779] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.827132][ T1007] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.834423][ T1007] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.847781][ T517] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.855074][ T517] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.094323][ T5779] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.481998][ T5779] veth0_vlan: entered promiscuous mode [ 94.494797][ T5779] veth1_vlan: entered promiscuous mode [ 94.525417][ T5779] veth0_macvtap: entered promiscuous mode [ 94.535291][ T5779] veth1_macvtap: entered promiscuous mode [ 94.556355][ T5779] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.571234][ T5779] batman_adv: batadv0: Interface activated: batadv_slave_1 2026/08/15 16:05:08 executed programs: 2 [ 218.950400][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 218.957540][ C0] rcu: 1-...!: (1 GPs behind) idle=ecbc/1/0x4000000000000000 softirq=16481/16481 fqs=1 [ 218.967972][ C0] rcu: (detected by 0, t=10502 jiffies, g=15457, q=310 ncpus=2) [ 218.975922][ C0] Sending NMI from CPU 0 to CPUs 1: [ 218.975966][ C1] NMI backtrace for cpu 1 [ 218.975996][ C1] CPU: 1 UID: 0 PID: 1007 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) [ 218.976016][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 218.976035][ C1] Workqueue: writeback wb_workfn (flush-8:0) [ 218.976086][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 [ 218.976108][ C1] Code: 89 fb e8 23 00 00 00 48 8b 3d c4 be 88 0c 48 89 de 5b e9 b3 12 62 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0d 68 6e a6 11 65 8b 15 89 6e a6 [ 218.976122][ C1] RSP: 0000:ffffc90000a08cc8 EFLAGS: 00000046 [ 218.976136][ C1] RAX: ffffffff89a0380d RBX: ffff88807c37e000 RCX: 0000000000010000 [ 218.976149][ C1] RDX: ffff888027a98000 RSI: 0000000000000001 RDI: 0000000000000002 [ 218.976160][ C1] RBP: 0000000000000000 R08: ffff88807c37e19f R09: 1ffff1100f86fc33 [ 218.976172][ C1] R10: dffffc0000000000 R11: ffffed100f86fc34 R12: ffff88807a815400 [ 218.976184][ C1] R13: dffffc0000000000 R14: ffff88807c37e208 R15: ffff88807c37e340 [ 218.976197][ C1] FS: 0000000000000000(0000) GS:ffff888125049000(0000) knlGS:0000000000000000 [ 218.976211][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 218.976222][ C1] CR2: 00007fdbe62a6100 CR3: 0000000077a62000 CR4: 00000000003526f0 [ 218.976238][ C1] Call Trace: [ 218.976246][ C1] [ 218.976252][ C1] __netif_schedule+0x87/0x200 [ 218.976277][ C1] ? advance_sched+0xa2a/0xc80 [ 218.976299][ C1] ? advance_sched+0x9e8/0xc80 [ 218.976322][ C1] advance_sched+0xa8a/0xc80 [ 218.976351][ C1] ? __pfx_advance_sched+0x10/0x10 [ 218.976374][ C1] __hrtimer_run_queues+0x3bc/0xa10 [ 218.976401][ C1] hrtimer_interrupt+0x448/0x910 [ 218.976431][ C1] __sysvec_apic_timer_interrupt+0x102/0x430 [ 218.976450][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 218.976470][ C1] [ 218.976476][ C1] [ 218.976482][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 218.976502][ C1] RIP: 0010:lock_acquire+0x221/0x350 [ 218.976524][ C1] Code: ff ff ff e8 21 ad 2f 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 ab b7 ca 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 50 b0 32 0a cc 48 8d 3d b8 65 b8 [ 218.976537][ C1] RSP: 0000:ffffc90004e3eb58 EFLAGS: 00000282 [ 218.976551][ C1] RAX: 23360339c0144700 RBX: 0000000000000000 RCX: 0000000000000046 [ 218.976563][ C1] RDX: 0000000023eeb576 RSI: ffffffff8e4b1f69 RDI: ffffffff8c4bbe80 [ 218.976575][ C1] RBP: ffffffff823c6cae R08: ffffffff823c6cae R09: 0000000000000000 [ 218.976586][ C1] R10: 0000000000000000 R11: ffffffff8eb59c60 R12: 0000000000000002 [ 218.976597][ C1] R13: ffffffff8eb59c60 R14: 0000000000000000 R15: 0000000000000246 [ 218.976610][ C1] ? lruvec_stat_mod_folio+0x6e/0x3e0 [ 218.976638][ C1] ? lruvec_stat_mod_folio+0x6e/0x3e0 [ 218.976668][ C1] ? lruvec_stat_mod_folio+0x6e/0x3e0 [ 218.976695][ C1] lruvec_stat_mod_folio+0x8a/0x3e0 [ 218.976721][ C1] ? lruvec_stat_mod_folio+0x6e/0x3e0 [ 218.976748][ C1] folio_clear_dirty_for_io+0x3ef/0x820 [ 218.976774][ C1] ? folio_clear_dirty_for_io+0x1bf/0x820 [ 218.976799][ C1] mpage_submit_folio+0x83/0x2a0 [ 218.976821][ C1] ? folio_unlock+0x101/0x160 [ 218.976847][ C1] ext4_do_writepages+0x219c/0x47a0 [ 218.976897][ C1] ? __pfx_ext4_do_writepages+0x10/0x10 [ 218.976927][ C1] ? ext4_writepages+0x205/0x3b0 [ 218.976951][ C1] ? ext4_writepages+0x205/0x3b0 [ 218.976983][ C1] ext4_writepages+0x241/0x3b0 [ 218.977006][ C1] ? __pfx_ext4_writepages+0x10/0x10 [ 218.977037][ C1] ? do_raw_spin_unlock+0xf5/0x210 [ 218.977055][ C1] ? __pfx_ext4_writepages+0x10/0x10 [ 218.977078][ C1] do_writepages+0x338/0x560 [ 218.977109][ C1] __writeback_single_inode+0x12e/0xf90 [ 218.977130][ C1] ? _raw_spin_unlock+0x28/0x50 [ 218.977149][ C1] writeback_sb_inodes+0x9de/0x1b00 [ 218.977183][ C1] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 218.977221][ C1] ? __pfx_down_read_trylock+0x10/0x10 [ 218.977246][ C1] __writeback_inodes_wb+0x114/0x240 [ 218.977271][ C1] wb_writeback+0x42f/0xad0 [ 218.977293][ C1] ? queue_io+0x271/0x470 [ 218.977315][ C1] ? __pfx_wb_writeback+0x10/0x10 [ 218.977334][ C1] ? do_raw_spin_lock+0x12b/0x2f0 [ 218.977354][ C1] ? process_scheduled_works+0xa20/0x14e0 [ 218.977378][ C1] wb_workfn+0xc92/0x10f0 [ 218.977404][ C1] ? __pfx_wb_workfn+0x10/0x10 [ 218.977422][ C1] ? do_raw_spin_lock+0x12b/0x2f0 [ 218.977444][ C1] ? do_raw_spin_unlock+0xf5/0x210 [ 218.977464][ C1] ? process_scheduled_works+0xa20/0x14e0 [ 218.977482][ C1] ? process_scheduled_works+0xa20/0x14e0 [ 218.977502][ C1] ? rcu_is_watching+0x15/0xb0 [ 218.977529][ C1] ? process_scheduled_works+0xa20/0x14e0 [ 218.977546][ C1] process_scheduled_works+0xa8e/0x14e0 [ 218.977579][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 218.977600][ C1] ? assign_work+0x3cf/0x5d0 [ 218.977620][ C1] worker_thread+0xa47/0xfb0 [ 218.977646][ C1] ? __kthread_parkme+0x71/0x1f0 [ 218.977680][ C1] kthread+0x388/0x470 [ 218.977704][ C1] ? __pfx_worker_thread+0x10/0x10 [ 218.977721][ C1] ? __pfx_kthread+0x10/0x10 [ 218.977744][ C1] ret_from_fork+0x514/0xb70 [ 218.977770][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 218.977793][ C1] ? __switch_to+0xc89/0x1420 [ 218.977814][ C1] ? __pfx_kthread+0x10/0x10 [ 218.977837][ C1] ret_from_fork_asm+0x1a/0x30 [ 218.977877][ C1] [ 218.977956][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g15457 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 219.517987][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 219.527981][ C0] rcu: RCU grace-period kthread stack dump: [ 219.533891][ C0] task:rcu_preempt state:R running task stack:28192 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 [ 219.547542][ C0] Call Trace: [ 219.550940][ C0] [ 219.553904][ C0] __schedule+0x17d9/0x56c0 [ 219.558444][ C0] ? __lock_acquire+0x683/0x2cf0 [ 219.563534][ C0] ? __pfx___schedule+0x10/0x10 [ 219.568424][ C0] ? schedule+0x90/0x2b0 [ 219.572700][ C0] schedule+0x164/0x2b0 [ 219.576927][ C0] schedule_timeout+0x152/0x2c0 [ 219.581909][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 219.587360][ C0] ? __pfx_process_timeout+0x10/0x10 [ 219.592769][ C0] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 219.598603][ C0] ? prepare_to_swait_event+0x322/0x350 [ 219.604205][ C0] rcu_gp_fqs_loop+0x30c/0x11f0 [ 219.609113][ C0] ? __pfx_rcu_watching_snap_save+0x10/0x10 [ 219.615052][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 219.620457][ C0] ? _raw_spin_unlock_irq+0x2e/0x50 [ 219.625689][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 219.631533][ C0] rcu_gp_kthread+0x9e/0x2b0 [ 219.636163][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 219.641424][ C0] ? __kthread_parkme+0x71/0x1f0 [ 219.646403][ C0] ? __kthread_parkme+0x196/0x1f0 [ 219.651646][ C0] kthread+0x388/0x470 [ 219.655853][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 219.661096][ C0] ? __pfx_kthread+0x10/0x10 [ 219.665732][ C0] ret_from_fork+0x514/0xb70 [ 219.670367][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 219.675541][ C0] ? __switch_to+0xc89/0x1420 [ 219.680262][ C0] ? __pfx_kthread+0x10/0x10 [ 219.684907][ C0] ret_from_fork_asm+0x1a/0x30 [ 219.690087][ C0] [ 219.693142][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 219.699504][ C0] CPU: 0 UID: 0 PID: 5825 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) [ 219.709266][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 219.719440][ C0] RIP: 0010:smp_call_function_many_cond+0x11e6/0x15f0 [ 219.726348][ C0] Code: c0 75 7a 41 8b 1e 89 de 83 e6 01 31 ff e8 e2 1e 0c 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 07 e8 8e 1a 0c 00 eb 37 f3 90 <41> 0f b6 04 1c 84 c0 75 10 41 f7 06 01 00 00 00 74 1e e8 73 1a 0c [ 219.746356][ C0] RSP: 0018:ffffc900041b7680 EFLAGS: 00000293 [ 219.752984][ C0] RAX: ffffffff81bae71d RBX: dffffc0000000000 RCX: ffff88802e84be00 [ 219.760987][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 219.769341][ C0] RBP: ffffc900041b77c8 R08: ffffffff90578f37 R09: 1ffffffff20af1e6 [ 219.777802][ C0] R10: dffffc0000000000 R11: fffffbfff20af1e7 R12: 1ffff110170e81d1 [ 219.785934][ C0] R13: ffff8880b863c448 R14: ffff8880b8740e88 R15: 0000000000000001 [ 219.793932][ C0] FS: 0000000000000000(0000) GS:ffff888124f49000(0000) knlGS:0000000000000000 [ 219.802887][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 219.809583][ C0] CR2: 00007ffce6d5a3c8 CR3: 000000000e946000 CR4: 00000000003526f0 [ 219.817590][ C0] Call Trace: [ 219.821016][ C0] [ 219.823984][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 219.829453][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 219.836205][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 219.841498][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 219.847553][ C0] flush_tlb_mm_range+0x5c4/0x1090 [ 219.852906][ C0] ? __lock_acquire+0x683/0x2cf0 [ 219.858285][ C0] tlb_flush_mmu+0x1af/0xa30 [ 219.863118][ C0] tlb_finish_mmu+0xf4/0x220 [ 219.867770][ C0] free_ldt_pgtables+0x192/0x360 [ 219.872744][ C0] ? __pfx_free_ldt_pgtables+0x10/0x10 [ 219.878382][ C0] ? down_read+0x2be/0x330 [ 219.883210][ C0] exit_mmap+0x1bf/0x9f0 [ 219.887544][ C0] ? __pfx_exit_mmap+0x10/0x10 [ 219.892642][ C0] ? __pfx_exit_aio+0x10/0x10 [ 219.897542][ C0] ? arch_uprobe_clear_state+0x1c8/0x240 [ 219.903396][ C0] ? uprobe_clear_state+0x2ac/0x3e0 [ 219.908660][ C0] __mmput+0x118/0x420 [ 219.912776][ C0] exit_mm+0x221/0x2d0 [ 219.916917][ C0] do_exit+0x6cd/0x2360 [ 219.921155][ C0] ? __pfx_do_exit+0x10/0x10 [ 219.925785][ C0] ? do_raw_spin_lock+0x12b/0x2f0 [ 219.930873][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 219.936132][ C0] do_group_exit+0x22d/0x2f0 [ 219.940875][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.946995][ C0] __x64_sys_exit_group+0x3f/0x40 [ 219.952075][ C0] x64_sys_call+0x221a/0x2240 [ 219.956799][ C0] do_syscall_64+0x174/0x580 [ 219.961428][ C0] ? trace_irq_disable+0x3b/0x140 [ 219.966542][ C0] ? clear_bhb_loop+0x70/0xc0 [ 219.971311][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.977527][ C0] RIP: 0033:0x7fdbe634f6c5 [ 219.982007][ C0] Code: Unable to access opcode bytes at 0x7fdbe634f69b. [ 219.989056][ C0] RSP: 002b:00007ffce6d5a2d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 219.997686][ C0] RAX: ffffffffffffffda RBX: 00007ffce6d5a504 RCX: 00007fdbe634f6c5 [ 220.005714][ C0] RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000 [ 220.013918][ C0] RBP: 0000000000000003 R08: 00007ffce6d5a3d0 R09: 0000000000000002 [ 220.022115][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 220.030209][ C0] R13: 00007ffce6d5a610 R14: 00007fdbe655f000 R15: 00005593fa367d98 [ 220.038233][ C0]