Warning: Permanently added '10.128.1.8' (ED25519) to the list of known hosts. 2026/01/04 13:48:12 parsed 1 programs [ 98.922290][ T5778] cgroup: Unknown subsys name 'net' [ 99.090544][ T5778] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 100.680971][ T5778] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 102.231889][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.240540][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.267455][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.276366][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.795298][ T5795] syz-executor (5795) used greatest stack depth: 20784 bytes left [ 103.469353][ T5810] chnl_net:caif_netlink_parms(): no params data found [ 103.531717][ T5810] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.539307][ T5810] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.546553][ T5810] bridge_slave_0: entered allmulticast mode [ 103.554139][ T5810] bridge_slave_0: entered promiscuous mode [ 103.580832][ T5810] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.588318][ T5810] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.595711][ T5810] bridge_slave_1: entered allmulticast mode [ 103.602528][ T5810] bridge_slave_1: entered promiscuous mode [ 103.647969][ T5810] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 103.659258][ T5810] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 103.704374][ T5810] team0: Port device team_slave_0 added [ 103.712112][ T5810] team0: Port device team_slave_1 added [ 103.757022][ T5810] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 103.765509][ T5810] 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 1560 would solve the problem. [ 103.792346][ T5810] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 103.807227][ T5810] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 103.815296][ T5810] 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 1560 would solve the problem. [ 103.841264][ T5810] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 103.890927][ T5810] hsr_slave_0: entered promiscuous mode [ 103.898231][ T5810] hsr_slave_1: entered promiscuous mode [ 104.067670][ T5810] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 104.078475][ T5810] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 104.087922][ T5810] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 104.098013][ T5810] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 104.138360][ T5810] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.145638][ T5810] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.153364][ T5810] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.160600][ T5810] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.232206][ T5810] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.252722][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.261425][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.278435][ T5810] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.292985][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.300184][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.314407][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.321666][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.516010][ T5810] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.555610][ T5810] veth0_vlan: entered promiscuous mode [ 104.566377][ T5810] veth1_vlan: entered promiscuous mode [ 104.593003][ T5810] veth0_macvtap: entered promiscuous mode [ 104.602544][ T5810] veth1_macvtap: entered promiscuous mode [ 104.619547][ T5810] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.632544][ T5810] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.645242][ T5810] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.655159][ T5810] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.663964][ T5810] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.672699][ T5810] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.819788][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.959633][ T5838] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.968874][ T5838] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.976706][ T5838] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.985245][ T5838] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.992962][ T5838] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 105.001815][ T5838] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2026/01/04 13:48:23 executed programs: 0 [ 107.228523][ T5079] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 107.236750][ T5079] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 107.244521][ T5079] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 107.252748][ T5079] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 107.261751][ T5079] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 107.269981][ T5079] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 107.330086][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 107.437246][ T5878] chnl_net:caif_netlink_parms(): no params data found [ 107.499642][ T5878] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.507085][ T5878] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.514410][ T5878] bridge_slave_0: entered allmulticast mode [ 107.521239][ T5878] bridge_slave_0: entered promiscuous mode [ 107.529953][ T5878] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.537185][ T5878] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.544936][ T5878] bridge_slave_1: entered allmulticast mode [ 107.551682][ T5878] bridge_slave_1: entered promiscuous mode [ 107.579903][ T5878] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 107.591259][ T5878] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 107.623659][ T5878] team0: Port device team_slave_0 added [ 107.631521][ T5878] team0: Port device team_slave_1 added [ 107.661084][ T5878] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 107.668235][ T5878] 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 1560 would solve the problem. [ 107.694214][ T5878] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 107.706162][ T5878] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 107.713150][ T5878] 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 1560 would solve the problem. [ 107.740021][ T5878] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.780438][ T5878] hsr_slave_0: entered promiscuous mode [ 107.786765][ T5878] hsr_slave_1: entered promiscuous mode [ 107.793212][ T5878] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 107.801692][ T5878] Cannot create hsr debugfs directory [ 109.324217][ T5079] Bluetooth: hci0: command tx timeout [ 109.897926][ T11] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 109.958196][ T11] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 110.869376][ T11] hsr_slave_0: left promiscuous mode [ 110.875821][ T11] hsr_slave_1: left promiscuous mode [ 110.882329][ T11] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 110.889945][ T11] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 110.898612][ T11] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 110.907173][ T11] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 110.915837][ T11] bridge_slave_1: left allmulticast mode [ 110.921540][ T11] bridge_slave_1: left promiscuous mode [ 110.928304][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 110.940694][ T11] bridge_slave_0: left allmulticast mode [ 110.947809][ T11] bridge_slave_0: left promiscuous mode [ 110.953928][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 110.983364][ T11] veth1_macvtap: left promiscuous mode [ 110.989728][ T11] veth0_macvtap: left promiscuous mode [ 110.995537][ T11] veth1_vlan: left promiscuous mode [ 111.000979][ T11] veth0_vlan: left promiscuous mode [ 111.368954][ T11] team0 (unregistering): Port device team_slave_1 removed [ 111.402435][ T11] team0 (unregistering): Port device team_slave_0 removed [ 111.415085][ T5079] Bluetooth: hci0: command tx timeout [ 111.438405][ T11] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 111.468376][ T11] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 111.744235][ T11] bond0 (unregistering): Released all slaves [ 111.825422][ T5878] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 111.835567][ T5878] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 111.850649][ T5878] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 111.860203][ T5878] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 111.956203][ T5878] 8021q: adding VLAN 0 to HW filter on device bond0 [ 111.984426][ T5878] 8021q: adding VLAN 0 to HW filter on device team0 [ 111.999402][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.006595][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.020591][ T59] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.027784][ T59] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.236210][ T5878] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 112.308683][ T5878] veth0_vlan: entered promiscuous mode [ 112.335493][ T5878] veth1_vlan: entered promiscuous mode [ 112.383077][ T5878] veth0_macvtap: entered promiscuous mode [ 112.418755][ T5878] veth1_macvtap: entered promiscuous mode [ 112.436872][ T5878] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 112.450332][ T5878] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 112.462551][ T5878] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.471687][ T5878] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.480610][ T5878] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.489339][ T5878] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 112.551553][ T49] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 112.559586][ T49] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 112.586294][ T59] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 112.594679][ T59] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/01/04 13:48:28 executed programs: 2 [ 113.524154][ T5079] Bluetooth: hci0: command tx timeout [ 217.773403][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 217.780537][ C1] rcu: 0-...!: (1 GPs behind) idle=f2a4/1/0x4000000000000000 softirq=12024/12025 fqs=35 [ 217.791001][ C1] rcu: (detected by 1, t=10506 jiffies, g=10297, q=118 ncpus=2) [ 217.798753][ C1] Sending NMI from CPU 1 to CPUs 0: [ 217.803985][ C0] NMI backtrace for cpu 0 [ 217.804004][ C0] CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted syzkaller #0 [ 217.804018][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 217.804028][ C0] Workqueue: netns cleanup_net [ 217.804059][ C0] RIP: 0010:__this_cpu_preempt_check+0x0/0x20 [ 217.804080][ C0] Code: 48 89 da e8 f2 9d f4 ff 48 8b 74 24 30 48 c7 c7 00 70 fc 8a e8 e1 9d f4 ff e8 fc 7e ff ff eb a8 e8 c5 e8 ff ff 0f 1f 44 00 00 0f 1e fa 48 89 fe 48 c7 c7 80 6f fc 8a e9 dd fe ff ff cc cc cc [ 217.804092][ C0] RSP: 0018:ffffc90000007c20 EFLAGS: 00000046 [ 217.804103][ C0] RAX: 0000000000000001 RBX: ffff88801ba4bc00 RCX: 0000000000000001 [ 217.804112][ C0] RDX: ffff88801ba4bc00 RSI: ffff88802c0ce300 RDI: ffffffff8aaace60 [ 217.804122][ C0] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 [ 217.804130][ C0] R10: dffffc0000000000 R11: fffff52000000f7c R12: 0000000000000005 [ 217.804139][ C0] R13: 0000000000000046 R14: ffff88802c0ce300 R15: ffff88801ba4c7a8 [ 217.804149][ C0] FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 217.804160][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 217.804170][ C0] CR2: 0000200000003c80 CR3: 000000000cb30000 CR4: 00000000003506f0 [ 217.804182][ C0] Call Trace: [ 217.804187][ C0] [ 217.804196][ C0] lock_is_held_type+0x104/0x190 [ 217.804220][ C0] advance_sched+0x161/0xc80 [ 217.804241][ C0] ? _raw_spin_unlock_irqrestore+0xae/0x110 [ 217.804259][ C0] ? _raw_spin_unlock+0x40/0x40 [ 217.804273][ C0] ? debug_object_deactivate+0x67/0x350 [ 217.804296][ C0] __hrtimer_run_queues+0x51e/0xc40 [ 217.804314][ C0] ? taprio_dequeue_from_txq+0x8f0/0x8f0 [ 217.804337][ C0] ? hrtimer_interrupt+0x9c0/0x9c0 [ 217.804351][ C0] ? ktime_get_update_offsets_now+0x3d2/0x3f0 [ 217.804371][ C0] hrtimer_interrupt+0x3c9/0x9c0 [ 217.804394][ C0] __sysvec_apic_timer_interrupt+0xfb/0x3b0 [ 217.804413][ C0] sysvec_apic_timer_interrupt+0x9f/0xc0 [ 217.804430][ C0] [ 217.804434][ C0] [ 217.804438][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 217.804456][ C0] RIP: 0010:lock_is_held_type+0x32/0x190 [ 217.804473][ C0] Code: 56 41 55 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 bd ff ff ff ff 83 3d f0 db e2 03 00 0f 84 03 01 00 00 <65> 8b 05 df 0f 9b 75 85 c0 0f 85 f4 00 00 00 65 48 8b 1d a7 3b 9c [ 217.804483][ C0] RSP: 0018:ffffc90000107580 EFLAGS: 00000202 [ 217.804494][ C0] RAX: 19ee6f42aa0faf00 RBX: 0000000000000001 RCX: 0000000000000000 [ 217.804503][ C0] RDX: ffff88801ba4bc00 RSI: 00000000ffffffff RDI: ffffffff8e084658 [ 217.804512][ C0] RBP: 00000000ffffffff R08: 0000000000000003 R09: 0000000000000004 [ 217.804520][ C0] R10: dffffc0000000000 R11: fffff52000020ec0 R12: ffff88801c2f0e00 [ 217.804530][ C0] R13: 0000000000000000 R14: 0000000000000007 R15: ffffffff8e084658 [ 217.804547][ C0] neigh_flush_dev+0x198/0xa80 [ 217.804569][ C0] ? do_raw_read_unlock+0x80/0x80 [ 217.804586][ C0] ? worker_thread+0xa55/0xfc0 [ 217.804604][ C0] ? __neigh_ifdown+0x2c/0x460 [ 217.804623][ C0] __neigh_ifdown+0x3d/0x460 [ 217.804645][ C0] neigh_ifdown+0x1f/0x30 [ 217.804668][ C0] inetdev_event+0x7e9/0x15c0 [ 217.804689][ C0] ? devinet_exit_net+0x220/0x220 [ 217.804710][ C0] notifier_call_chain+0x197/0x390 [ 217.804730][ C0] unregister_netdevice_many_notify+0xf36/0x1810 [ 217.804753][ C0] ? unregister_netdevice_many+0x20/0x20 [ 217.804770][ C0] ? unregister_netdevice_queue+0x1ae/0x360 [ 217.804790][ C0] ip6gre_exit_batch_net+0x449/0x490 [ 217.804812][ C0] ? ip6gre_init_net+0x360/0x360 [ 217.804829][ C0] ? remove_proc_subtree+0x425/0x560 [ 217.804851][ C0] ? ip6gre_init_net+0x360/0x360 [ 217.804869][ C0] cleanup_net+0x77f/0xb90 [ 217.804883][ C0] ? ops_free_list+0x3b0/0x3b0 [ 217.804898][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 217.804914][ C0] ? process_scheduled_works+0x957/0x15b0 [ 217.804931][ C0] ? process_scheduled_works+0x957/0x15b0 [ 217.804948][ C0] process_scheduled_works+0xa45/0x15b0 [ 217.804975][ C0] ? assign_work+0x400/0x400 [ 217.804993][ C0] ? assign_work+0x39e/0x400 [ 217.805010][ C0] worker_thread+0xa55/0xfc0 [ 217.805036][ C0] kthread+0x2fa/0x390 [ 217.805048][ C0] ? pr_cont_work+0x560/0x560 [ 217.805064][ C0] ? kthread_blkcg+0xd0/0xd0 [ 217.805076][ C0] ret_from_fork+0x48/0x80 [ 217.805092][ C0] ? kthread_blkcg+0xd0/0xd0 [ 217.805104][ C0] ret_from_fork_asm+0x11/0x20 [ 217.805128][ C0] [ 217.805975][ C1] rcu: rcu_preempt kthread starved for 10330 jiffies! g10297 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 218.249011][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 218.258998][ C1] rcu: RCU grace-period kthread stack dump: [ 218.264898][ C1] task:rcu_preempt state:R running task stack:27752 pid:17 ppid:2 flags:0x00004000 [ 218.275699][ C1] Call Trace: [ 218.278998][ C1] [ 218.281951][ C1] __schedule+0x14d2/0x44d0 [ 218.286501][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x110 [ 218.292416][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 218.297647][ C1] ? _raw_spin_unlock_irqrestore+0xae/0x110 [ 218.303565][ C1] ? asan.module_dtor+0x20/0x20 [ 218.308447][ C1] ? enqueue_timer+0x225/0x530 [ 218.313231][ C1] ? __mod_timer+0x984/0xdb0 [ 218.317858][ C1] schedule+0xbd/0x170 [ 218.321953][ C1] schedule_timeout+0x160/0x280 [ 218.326822][ C1] ? console_conditional_schedule+0x40/0x40 [ 218.332734][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x110 [ 218.338650][ C1] ? update_process_times+0x1b0/0x1b0 [ 218.344055][ C1] ? prepare_to_swait_event+0x339/0x360 [ 218.349627][ C1] rcu_gp_fqs_loop+0x302/0x1560 [ 218.354521][ C1] ? dyntick_save_progress_counter+0x2b0/0x2b0 [ 218.360724][ C1] ? rcu_gp_init+0x1510/0x1510 [ 218.365529][ C1] ? rcu_gp_cleanup+0xb4c/0xca0 [ 218.370420][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 218.375647][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 218.380871][ C1] rcu_gp_kthread+0x99/0x380 [ 218.385495][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 218.390656][ C1] ? __kthread_parkme+0x7a/0x1c0 [ 218.395636][ C1] ? __kthread_parkme+0x162/0x1c0 [ 218.400692][ C1] kthread+0x2fa/0x390 [ 218.404780][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 218.409917][ C1] ? kthread_blkcg+0xd0/0xd0 [ 218.414534][ C1] ret_from_fork+0x48/0x80 [ 218.418984][ C1] ? kthread_blkcg+0xd0/0xd0 [ 218.423603][ C1] ret_from_fork_asm+0x11/0x20 [ 218.428410][ C1] [ 218.431459][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 218.437801][ C1] CPU: 1 PID: 5931 Comm: kworker/1:4 Not tainted syzkaller #0 [ 218.445272][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 218.455347][ C1] Workqueue: events_power_efficient neigh_managed_work [ 218.462229][ C1] RIP: 0010:queued_write_lock_slowpath+0x125/0x294 [ 218.468759][ C1] Code: f0 41 81 0e 00 01 00 00 42 0f b6 04 23 84 c0 74 37 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 2a 4c 89 f7 e8 bf be 6b f7 eb 20 f3 90 <42> 0f b6 04 23 84 c0 74 15 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 08 [ 218.488383][ C1] RSP: 0018:ffffc900044c79e0 EFLAGS: 00000206 [ 218.494476][ C1] RAX: 00000000000001ff RBX: 1ffffffff1c108c8 RCX: ffffffff8a713fab [ 218.502465][ C1] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8e084640 [ 218.510457][ C1] RBP: ffffc900044c7a90 R08: ffffffff8e084643 R09: 1ffffffff1c108c8 [ 218.518451][ C1] R10: dffffc0000000000 R11: fffffbfff1c108c9 R12: dffffc0000000000 [ 218.526445][ C1] R13: 1ffff92000898f40 R14: ffffffff8e084640 R15: ffffc900044c7a30 [ 218.534436][ C1] FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 218.543385][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 218.549983][ C1] CR2: 000000c007d63000 CR3: 00000000264b0000 CR4: 00000000003506e0 [ 218.557975][ C1] Call Trace: [ 218.561271][ C1] [ 218.564228][ C1] ? queued_read_lock_slowpath+0x240/0x240 [ 218.570071][ C1] do_raw_write_lock+0x1ee/0x260 [ 218.575040][ C1] ? do_raw_read_unlock+0x80/0x80 [ 218.580090][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x760 [ 218.586100][ C1] ? read_lock_is_recursive+0x20/0x20 [ 218.591507][ C1] ? neigh_managed_work+0x34/0x240 [ 218.596674][ C1] neigh_managed_work+0x34/0x240 [ 218.601641][ C1] ? process_scheduled_works+0x957/0x15b0 [ 218.607383][ C1] ? process_scheduled_works+0x957/0x15b0 [ 218.613122][ C1] process_scheduled_works+0xa45/0x15b0 [ 218.618710][ C1] ? assign_work+0x400/0x400 [ 218.623332][ C1] ? assign_work+0x39e/0x400 [ 218.627953][ C1] worker_thread+0xa55/0xfc0 [ 218.632575][ C1] ? _raw_spin_unlock_irqrestore+0xae/0x110 [ 218.638500][ C1] ? _raw_spin_unlock+0x40/0x40 [ 218.643368][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x110 [ 218.649297][ C1] kthread+0x2fa/0x390 [ 218.653380][ C1] ? pr_cont_work+0x560/0x560 [ 218.658080][ C1] ? kthread_blkcg+0xd0/0xd0 [ 218.662685][ C1] ret_from_fork+0x48/0x80 [ 218.667124][ C1] ? kthread_blkcg+0xd0/0xd0 [ 218.671731][ C1] ret_from_fork_asm+0x11/0x20 [ 218.676537][ C1]