Warning: Permanently added '10.128.1.17' (ED25519) to the list of known hosts. [ 55.303358][ T4164] chnl_net:caif_netlink_parms(): no params data found [ 55.348886][ T4164] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.356367][ T4164] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.364250][ T4164] device bridge_slave_0 entered promiscuous mode [ 55.373608][ T4164] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.380748][ T4164] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.388473][ T4164] device bridge_slave_1 entered promiscuous mode [ 55.409680][ T4164] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.420945][ T4164] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.443729][ T4164] team0: Port device team_slave_0 added [ 55.451195][ T4164] team0: Port device team_slave_1 added [ 55.470241][ T4164] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.477202][ T4164] 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. [ 55.503205][ T4164] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.515903][ T4164] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.522865][ T4164] 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. [ 55.548949][ T4164] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.579524][ T4164] device hsr_slave_0 entered promiscuous mode [ 55.586278][ T4164] device hsr_slave_1 entered promiscuous mode [ 55.677876][ T4164] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.688440][ T4164] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.697499][ T4164] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.706933][ T4164] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.727869][ T4164] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.735007][ T4164] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.742621][ T4164] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.749717][ T4164] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.795431][ T4164] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.808116][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.818755][ T1404] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.827533][ T1404] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.836215][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.849277][ T4164] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.860907][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.869614][ T1183] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.876696][ T1183] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.889025][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.897603][ T1183] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.904705][ T1183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.929515][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.939063][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.947904][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.956659][ T1183] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.968606][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.979814][ T4164] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.996610][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.004023][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.017343][ T4164] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.035898][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.055095][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.063404][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.071278][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.081504][ T4164] device veth0_vlan entered promiscuous mode [ 56.093324][ T4164] device veth1_vlan entered promiscuous mode [ 56.112811][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.120947][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.129827][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.140349][ T4164] device veth0_macvtap entered promiscuous mode [ 56.149446][ T4164] device veth1_macvtap entered promiscuous mode [ 56.164541][ T4164] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.173538][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.183360][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.195771][ T4164] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.203324][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 56.214156][ T4164] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.223500][ T4164] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.232307][ T4164] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.241449][ T4164] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.284326][ T4164] sch_tbf: burst 4398 is lower than device lo mtu (65550) ! [ 59.285023][ T7] [ 59.287576][ T7] ============================= [ 59.292517][ T7] WARNING: suspicious RCU usage [ 59.297406][ T7] 5.15.179-syzkaller #0 Not tainted [ 59.302634][ T7] ----------------------------- [ 59.307533][ T7] net/sched/sch_api.c:304 suspicious rcu_dereference_protected() usage! [ 59.315891][ T7] [ 59.315891][ T7] other info that might help us debug this: [ 59.315891][ T7] [ 59.326170][ T7] [ 59.326170][ T7] rcu_scheduler_active = 2, debug_locks = 1 [ 59.334236][ T7] 8 locks held by kworker/0:0/7: [ 59.339199][ T7] #0: ffff88807db1a138 ((wq_completion)wg-crypt-wg0){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 [ 59.350166][ T7] #1: ffffc90000cc7d20 ((work_completion)(&peer->transmit_packet_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 [ 59.362755][ T7] #2: ffff888077928ad8 (&peer->endpoint_lock){++..}-{2:2}, at: wg_socket_send_skb_to_peer+0x56/0x1d0 [ 59.373752][ T7] #3: ffffffff8cb1f540 (rcu_read_lock_bh){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30 [ 59.383361][ T7] #4: ffffffff8cb1f540 (rcu_read_lock_bh){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30 [ 59.392987][ T7] #5: ffffffff8cb1f540 (rcu_read_lock_bh){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30 [ 59.402613][ T7] #6: ffff888027b9d908 (&sch->q.lock){+...}-{2:2}, at: __dev_queue_xmit+0xc1f/0x32b0 [ 59.412211][ T7] #7: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 59.421563][ T7] [ 59.421563][ T7] stack backtrace: [ 59.427466][ T7] CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 5.15.179-syzkaller #0 [ 59.435524][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 59.445576][ T7] Workqueue: wg-crypt-wg0 wg_packet_tx_worker [ 59.451655][ T7] Call Trace: [ 59.454961][ T7] [ 59.457888][ T7] dump_stack_lvl+0x1e3/0x2d0 [ 59.462568][ T7] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 59.468219][ T7] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 59.473759][ T7] qdisc_lookup+0xa8/0x630 [ 59.478171][ T7] qdisc_tree_reduce_backlog+0x212/0x4f0 [ 59.483803][ T7] sfq_enqueue+0x1214/0x23e0 [ 59.488393][ T7] ? decrement_one_qlen+0x550/0x550 [ 59.493581][ T7] ? read_lock_is_recursive+0x10/0x10 [ 59.498949][ T7] tbf_enqueue+0x35d/0x6f0 [ 59.503362][ T7] dev_qdisc_enqueue+0x47/0x240 [ 59.508206][ T7] ? __dev_queue_xmit+0xcba/0x32b0 [ 59.513327][ T7] __dev_queue_xmit+0xe32/0x32b0 [ 59.518268][ T7] ? dev_queue_xmit+0x20/0x20 [ 59.522937][ T7] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 59.528923][ T7] ? print_irqtrace_events+0x210/0x210 [ 59.534377][ T7] ? __ipv6_neigh_lookup_noref+0x59b/0x730 [ 59.540180][ T7] ? ip6_finish_output2+0xcbf/0x15a0 [ 59.545463][ T7] ip6_finish_output2+0xead/0x15a0 [ 59.550581][ T7] ? __ip6_finish_output+0x7d0/0x7d0 [ 59.555868][ T7] ? __ip6_finish_output+0x645/0x7d0 [ 59.561245][ T7] udp_tunnel6_xmit_skb+0x536/0x970 [ 59.566444][ T7] send6+0x6b8/0xad0 [ 59.570346][ T7] ? send4+0x1130/0x1130 [ 59.574574][ T7] ? __local_bh_disable_ip+0x183/0x210 [ 59.580048][ T7] ? del_timer+0x183/0x310 [ 59.584457][ T7] ? wg_socket_send_skb_to_peer+0x56/0x1d0 [ 59.590257][ T7] wg_socket_send_skb_to_peer+0x111/0x1d0 [ 59.595976][ T7] wg_packet_tx_worker+0x1a1/0x7a0 [ 59.601108][ T7] process_one_work+0x8a1/0x10c0 [ 59.606056][ T7] ? worker_detach_from_pool+0x260/0x260 [ 59.611688][ T7] ? _raw_spin_lock_irqsave+0x120/0x120 [ 59.617244][ T7] ? kthread_data+0x4e/0xc0 [ 59.621774][ T7] ? wq_worker_running+0x97/0x170 [ 59.626792][ T7] worker_thread+0xaca/0x1280 [ 59.631485][ T7] kthread+0x3f6/0x4f0 [ 59.635546]