[ 61.752654][ T145] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.779312][ T145] device veth1_macvtap left promiscuous mode [ 61.785987][ T145] device veth0_macvtap left promiscuous mode [ 61.793685][ T145] device veth1_vlan left promiscuous mode [ 61.801520][ T145] device veth0_vlan left promiscuous mode [ 61.963285][ T145] team0 (unregistering): Port device team_slave_1 removed [ 61.977605][ T145] team0 (unregistering): Port device team_slave_0 removed [ 61.992854][ T145] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 62.008366][ T145] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 62.059665][ T145] bond0 (unregistering): Released all slaves [ 71.450305][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.457456][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. 2026/03/02 19:01:25 ignoring optional flag "type"="gce" 2026/03/02 19:01:25 parsed 1 programs 2026/03/02 19:01:28 executed programs: 0 [ 75.915688][ T4402] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.121914][ T4503] chnl_net:caif_netlink_parms(): no params data found [ 76.167464][ T4503] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.175145][ T4503] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.184188][ T4503] device bridge_slave_0 entered promiscuous mode [ 76.193662][ T4503] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.201289][ T4503] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.209691][ T4503] device bridge_slave_1 entered promiscuous mode [ 76.239417][ T4503] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.254393][ T4503] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.285475][ T4503] team0: Port device team_slave_0 added [ 76.293266][ T4503] team0: Port device team_slave_1 added [ 76.310901][ T4503] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.318341][ T4503] 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. [ 76.345978][ T4503] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.359574][ T4503] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.366636][ T4503] 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. [ 76.394810][ T4503] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.426091][ T4503] device hsr_slave_0 entered promiscuous mode [ 76.433819][ T4503] device hsr_slave_1 entered promiscuous mode [ 77.292872][ T4503] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.306185][ T4503] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.319171][ T4503] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.334422][ T4503] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.433808][ T4503] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.456084][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.471161][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.491866][ T4503] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.509480][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.520304][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.532596][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.541618][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.567571][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.583292][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.599772][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.611301][ T145] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.620070][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.632504][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.645810][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.669991][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.686018][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.699080][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.711587][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.723729][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.734903][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.744881][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.759743][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.769463][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.782073][ T4503] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.894673][ T4503] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.904052][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.912057][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.934717][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.945419][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.967505][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.977962][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.988989][ T4503] device veth0_vlan entered promiscuous mode [ 77.997795][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.007435][ T4526] Bluetooth: hci0: command 0x0409 tx timeout [ 78.008396][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.025720][ T4503] device veth1_vlan entered promiscuous mode [ 78.052068][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.061643][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.071921][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.080997][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.092990][ T4503] device veth0_macvtap entered promiscuous mode [ 78.104173][ T4503] device veth1_macvtap entered promiscuous mode [ 78.122169][ T4503] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.132375][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.142034][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.151257][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.161058][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.175276][ T4503] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.187024][ T4503] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.195846][ T4503] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.207250][ T4503] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.217854][ T4503] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.228217][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.237746][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.103811][ T4203] Bluetooth: hci0: command 0x041b tx timeout [ 80.727477][ T3159] [ 80.730146][ T3159] ====================================================== [ 80.737935][ T3159] WARNING: possible circular locking dependency detected [ 80.745599][ T3159] syzkaller #0 Not tainted [ 80.750491][ T3159] ------------------------------------------------------ [ 80.758059][ T3159] kworker/1:2/3159 is trying to acquire lock: [ 80.764966][ T3159] ffff8880b9127eb8 (krc.lock){..-.}-{2:2}, at: kvfree_call_rcu+0x18d/0x7d0 [ 80.774136][ T3159] [ 80.774136][ T3159] but task is already holding lock: [ 80.782312][ T3159] ffff88802c482a38 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x710 [ 80.792188][ T3159] [ 80.792188][ T3159] which lock already depends on the new lock. [ 80.792188][ T3159] [ 80.803663][ T3159] [ 80.803663][ T3159] the existing dependency chain (in reverse order) is: [ 80.813265][ T3159] [ 80.813265][ T3159] -> #2 (&trie->lock){..-.}-{2:2}: [ 80.821271][ T3159] _raw_spin_lock_irqsave+0xb0/0x100 [ 80.828374][ T3159] trie_delete_elem+0x90/0x710 [ 80.834377][ T3159] bpf_prog_2c29ac5cdc6b1842+0xb4a/0xcc4 [ 80.840864][ T3159] bpf_trace_run3+0x19e/0x350 [ 80.846186][ T3159] enqueue_timer+0x394/0x520 [ 80.851575][ T3159] __mod_timer+0x911/0xd00 [ 80.856881][ T3159] dsp_cmx_send+0x1ab4/0x1b30 [ 80.862091][ T3159] call_timer_fn+0x17b/0x540 [ 80.867719][ T3159] __run_timers+0x53e/0x800 [ 80.873356][ T3159] run_timer_softirq+0x63/0xf0 [ 80.879223][ T3159] handle_softirqs+0x339/0x830 [ 80.885694][ T3159] __irq_exit_rcu+0x13b/0x230 [ 80.891077][ T3159] irq_exit_rcu+0x5/0x20 [ 80.896019][ T3159] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 80.902695][ T3159] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 80.909198][ T3159] default_idle+0xb/0x10 [ 80.914043][ T3159] default_idle_call+0x81/0xc0 [ 80.919407][ T3159] do_idle+0x21f/0x580 [ 80.923987][ T3159] cpu_startup_entry+0x14/0x20 [ 80.929255][ T3159] start_secondary+0x330/0x430 [ 80.934631][ T3159] secondary_startup_64_no_verify+0xb1/0xbb [ 80.941129][ T3159] [ 80.941129][ T3159] -> #1 (&base->lock){-.-.}-{2:2}: [ 80.948666][ T3159] _raw_spin_lock_irqsave+0xb0/0x100 [ 80.954557][ T3159] lock_timer_base+0x123/0x270 [ 80.959858][ T3159] __mod_timer+0xfe/0xd00 [ 80.964778][ T3159] queue_delayed_work_on+0x12d/0x1f0 [ 80.970781][ T3159] kvfree_call_rcu+0x4bc/0x7d0 [ 80.976326][ T3159] rtnl_register_internal+0x489/0x590 [ 80.982229][ T3159] rtnl_register+0x2e/0x70 [ 80.987151][ T3159] ip_rt_init+0x2e0/0x3a0 [ 80.992241][ T3159] ip_init+0xa/0x20 [ 80.996679][ T3159] inet_init+0x28b/0x3a0 [ 81.001684][ T3159] do_one_initcall+0x272/0x730 [ 81.006956][ T3159] do_initcall_level+0x137/0x1f0 [ 81.012398][ T3159] do_initcalls+0x4b/0x90 [ 81.017226][ T3159] kernel_init_freeable+0x3e9/0x570 [ 81.022925][ T3159] kernel_init+0x19/0x1b0 [ 81.027940][ T3159] ret_from_fork+0x1f/0x30 [ 81.033329][ T3159] [ 81.033329][ T3159] -> #0 (krc.lock){..-.}-{2:2}: [ 81.040811][ T3159] __lock_acquire+0x2c42/0x7d10 [ 81.046899][ T3159] lock_acquire+0x19e/0x400 [ 81.054410][ T3159] _raw_spin_lock+0x2a/0x40 [ 81.060411][ T3159] kvfree_call_rcu+0x18d/0x7d0 [ 81.066178][ T3159] trie_delete_elem+0x58c/0x710 [ 81.071646][ T3159] bpf_prog_2c29ac5cdc6b1842+0x3a/0xcc4 [ 81.077698][ T3159] bpf_trace_run3+0x19e/0x350 [ 81.083109][ T3159] enqueue_timer+0x394/0x520 [ 81.088306][ T3159] __mod_timer+0x911/0xd00 [ 81.093529][ T3159] schedule_timeout+0x17f/0x2d0 [ 81.098904][ T3159] msleep+0x31/0x50 [ 81.103326][ T3159] nsim_fib_event_work+0x27fb/0x33e0 [ 81.109507][ T3159] process_one_work+0x85f/0x1010 [ 81.115110][ T3159] worker_thread+0xd60/0x1290 [ 81.120582][ T3159] kthread+0x436/0x520 [ 81.125152][ T3159] ret_from_fork+0x1f/0x30 [ 81.130071][ T3159] [ 81.130071][ T3159] other info that might help us debug this: [ 81.130071][ T3159] [ 81.140281][ T3159] Chain exists of: [ 81.140281][ T3159] krc.lock --> &base->lock --> &trie->lock [ 81.140281][ T3159] [ 81.152077][ T3159] Possible unsafe locking scenario: [ 81.152077][ T3159] [ 81.159765][ T3159] CPU0 CPU1 [ 81.165152][ T3159] ---- ---- [ 81.170928][ T3159] lock(&trie->lock); [ 81.175262][ T3159] lock(&base->lock); [ 81.182652][ T3159] lock(&trie->lock); [ 81.189619][ T3159] lock(krc.lock); [ 81.193434][ T3159] [ 81.193434][ T3159] *** DEADLOCK *** [ 81.193434][ T3159] [ 81.202512][ T3159] 6 locks held by kworker/1:2/3159: [ 81.208183][ T3159] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 81.218530][ T3159] #1: ffffc9000d4ffd00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 81.231722][ T3159] #2: ffff88802822c240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x26a/0x33e0 [ 81.242211][ T3159] #3: ffff8880b91280d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x123/0x270 [ 81.252404][ T3159] #4: ffffffff8c31eaa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 81.262086][ T3159] #5: ffff88802c482a38 (&trie->lock){..-.}-{2:2}, at: trie_delete_elem+0x90/0x710 [ 81.271961][ T3159] [ 81.271961][ T3159] stack backtrace: [ 81.278027][ T3159] CPU: 1 PID: 3159 Comm: kworker/1:2 Not tainted syzkaller #0 [ 81.285463][ T3159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 81.295504][ T3159] Workqueue: events nsim_fib_event_work [ 81.301394][ T3159] Call Trace: [ 81.304655][ T3159] [ 81.307571][ T3159] dump_stack_lvl+0x188/0x250 [ 81.312240][ T3159] ? load_image+0x400/0x400 [ 81.316904][ T3159] ? show_regs_print_info+0x20/0x20 [ 81.322115][ T3159] ? print_circular_bug+0x12b/0x1a0 [ 81.327332][ T3159] check_noncircular+0x296/0x330 [ 81.332255][ T3159] ? add_chain_block+0x940/0x940 [ 81.337170][ T3159] ? lockdep_lock+0xf1/0x1f0 [ 81.341754][ T3159] ? mark_lock+0x94/0x320 [ 81.346067][ T3159] __lock_acquire+0x2c42/0x7d10 [ 81.350923][ T3159] ? stack_trace_save+0xa6/0xf0 [ 81.355857][ T3159] ? stack_depot_save+0x404/0x440 [ 81.360950][ T3159] ? verify_lock_unused+0x140/0x140 [ 81.366222][ T3159] ? kasan_save_stack+0x4b/0x60 [ 81.371168][ T3159] ? kasan_save_stack+0x35/0x60 [ 81.376259][ T3159] ? kasan_record_aux_stack+0xb8/0x100 [ 81.382025][ T3159] ? kvfree_call_rcu+0x105/0x7d0 [ 81.388429][ T3159] ? trie_delete_elem+0x58c/0x710 [ 81.394310][ T3159] ? bpf_prog_2c29ac5cdc6b1842+0x3a/0xcc4 [ 81.400346][ T3159] ? bpf_trace_run3+0x19e/0x350 [ 81.405613][ T3159] ? enqueue_timer+0x394/0x520 [ 81.410822][ T3159] ? __mod_timer+0x911/0xd00 [ 81.415885][ T3159] ? schedule_timeout+0x17f/0x2d0 [ 81.421269][ T3159] ? msleep+0x31/0x50 [ 81.425414][ T3159] ? nsim_fib_event_work+0x27fb/0x33e0 [ 81.432203][ T3159] ? process_one_work+0x85f/0x1010 [ 81.437844][ T3159] ? worker_thread+0xd60/0x1290 [ 81.442874][ T3159] ? kthread+0x436/0x520 [ 81.447747][ T3159] ? ret_from_fork+0x1f/0x30 [ 81.452655][ T3159] lock_acquire+0x19e/0x400 [ 81.457423][ T3159] ? kvfree_call_rcu+0x18d/0x7d0 [ 81.462992][ T3159] ? read_lock_is_recursive+0x10/0x10 [ 81.469559][ T3159] _raw_spin_lock+0x2a/0x40 [ 81.474472][ T3159] ? kvfree_call_rcu+0x18d/0x7d0 [ 81.479733][ T3159] kvfree_call_rcu+0x18d/0x7d0 [ 81.484673][ T3159] ? call_rcu+0x950/0x950 [ 81.489041][ T3159] ? _raw_spin_lock_irqsave+0xbc/0x100 [ 81.494571][ T3159] ? _raw_spin_lock+0x40/0x40 [ 81.499226][ T3159] ? longest_prefix_match+0x452/0x660 [ 81.504665][ T3159] trie_delete_elem+0x58c/0x710 [ 81.509764][ T3159] bpf_prog_2c29ac5cdc6b1842+0x3a/0xcc4 [ 81.515762][ T3159] bpf_trace_run3+0x19e/0x350 [ 81.520687][ T3159] ? do_raw_spin_unlock+0x11d/0x230 [ 81.525954][ T3159] ? bpf_trace_run2+0x2e0/0x2e0 [ 81.531220][ T3159] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.537220][ T3159] ? _raw_spin_lock_irqsave+0xbc/0x100 [ 81.542669][ T3159] ? _raw_spin_lock+0x40/0x40 [ 81.547335][ T3159] enqueue_timer+0x394/0x520 [ 81.551912][ T3159] __mod_timer+0x911/0xd00 [ 81.556403][ T3159] schedule_timeout+0x17f/0x2d0 [ 81.561331][ T3159] ? console_conditional_schedule+0x40/0x40 [ 81.567382][ T3159] ? update_process_times+0x200/0x200 [ 81.573019][ T3159] msleep+0x31/0x50 [ 81.577413][ T3159] nsim_fib_event_work+0x27fb/0x33e0 [ 81.583044][ T3159] ? nsim_fib_create+0xb30/0xb30 [ 81.588293][ T3159] ? __lock_acquire+0x13bc/0x7d10 [ 81.593536][ T3159] ? verify_lock_unused+0x140/0x140 [ 81.598785][ T3159] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 81.604959][ T3159] ? _raw_spin_unlock+0x40/0x40 [ 81.609810][ T3159] ? _raw_spin_unlock_irq+0x1f/0x40 [ 81.615089][ T3159] process_one_work+0x85f/0x1010 [ 81.620019][ T3159] ? worker_detach_from_pool+0x240/0x240 [ 81.625804][ T3159] ? lockdep_hardirqs_off+0x70/0x100 [ 81.631121][ T3159] ? _raw_spin_lock_irq+0xb7/0xf0 [ 81.636299][ T3159] ? _raw_spin_lock_irqsave+0x100/0x100 [ 81.641944][ T3159] ? wq_worker_running+0x97/0x170 [ 81.647245][ T3159] worker_thread+0xd60/0x1290 [ 81.652170][ T3159] ? lockdep_hardirqs_on+0x94/0x140 [ 81.657349][ T3159] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.663400][ T3159] kthread+0x436/0x520 [ 81.667448][ T3159] ? rcu_lock_release+0x20/0x20 [ 81.672369][ T3159] ? kthread_blkcg+0xd0/0xd0 [ 81.677222][ T3159] ret_from_fork+0x1f/0x30 [ 81.681628][ T3159]