no interfaces have a carrier [ 45.029735][ T5434] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.047269][ T5434] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.161' (ED25519) to the list of known hosts. 2026/05/31 10:14:23 parsed 1 programs syzkaller login: [ 73.530525][ T5780] cgroup: Unknown subsys name 'net' [ 73.636979][ T5780] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.975995][ T5780] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 77.222816][ T5816] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 77.230540][ T5816] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 77.238357][ T5816] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 77.249629][ T5816] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 77.259393][ T5816] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 77.266781][ T5816] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 77.505956][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.514875][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.544863][ T60] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.553153][ T60] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.148350][ T5841] chnl_net:caif_netlink_parms(): no params data found [ 78.216516][ T5841] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.224153][ T5841] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.231553][ T5841] bridge_slave_0: entered allmulticast mode [ 78.238252][ T5841] bridge_slave_0: entered promiscuous mode [ 78.248282][ T5841] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.255578][ T5841] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.263098][ T5841] bridge_slave_1: entered allmulticast mode [ 78.269709][ T5841] bridge_slave_1: entered promiscuous mode [ 78.297272][ T5841] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.308576][ T5841] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.331959][ T5841] team0: Port device team_slave_0 added [ 78.339103][ T5841] team0: Port device team_slave_1 added [ 78.372220][ T5841] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.379149][ T5841] 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. [ 78.405080][ T5841] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.417209][ T5841] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.424200][ T5841] 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. [ 78.450131][ T5841] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.485909][ T5841] hsr_slave_0: entered promiscuous mode [ 78.492739][ T5841] hsr_slave_1: entered promiscuous mode [ 78.666313][ T5841] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.677891][ T5841] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.687732][ T5841] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.697002][ T5841] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.799944][ T5841] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.817779][ T5841] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.829563][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.836875][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.852728][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.860046][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.036226][ T5841] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.085220][ T5841] veth0_vlan: entered promiscuous mode [ 79.095726][ T5841] veth1_vlan: entered promiscuous mode [ 79.129687][ T5841] veth0_macvtap: entered promiscuous mode [ 79.139701][ T5841] veth1_macvtap: entered promiscuous mode [ 79.157401][ T5841] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.185702][ T5841] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.197034][ T5841] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.206003][ T5841] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.215744][ T5841] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.225606][ T5841] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.913768][ T48] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/05/31 10:14:32 executed programs: 0 [ 81.445589][ T5085] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.453486][ T5085] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.461669][ T5085] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.469717][ T5085] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.477987][ T5085] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 81.486981][ T5085] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.597743][ T5884] chnl_net:caif_netlink_parms(): no params data found [ 81.647358][ T5884] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.655507][ T5884] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.670854][ T5884] bridge_slave_0: entered allmulticast mode [ 81.677470][ T5884] bridge_slave_0: entered promiscuous mode [ 81.693112][ T5884] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.700232][ T5884] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.710926][ T5884] bridge_slave_1: entered allmulticast mode [ 81.718162][ T5884] bridge_slave_1: entered promiscuous mode [ 81.755889][ T5884] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.772544][ T5884] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.812543][ T5884] team0: Port device team_slave_0 added [ 81.823529][ T5884] team0: Port device team_slave_1 added [ 81.855474][ T5884] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.864869][ T5884] 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. [ 81.893185][ T5884] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.905904][ T5884] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.915215][ T5884] 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. [ 81.943602][ T5884] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.994251][ T5884] hsr_slave_0: entered promiscuous mode [ 82.001357][ T5884] hsr_slave_1: entered promiscuous mode [ 82.007712][ T5884] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 82.015922][ T5884] Cannot create hsr debugfs directory [ 82.141363][ T48] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.581920][ T5816] Bluetooth: hci0: command tx timeout [ 84.712906][ T48] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.771805][ T48] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.621543][ T5884] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.644237][ T5884] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.653802][ T5884] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.661077][ T5816] Bluetooth: hci0: command tx timeout [ 85.663642][ T5884] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.730217][ T5884] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.747199][ T48] hsr_slave_0: left promiscuous mode [ 85.753952][ T48] hsr_slave_1: left promiscuous mode [ 85.759762][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.767238][ T48] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.775950][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.783637][ T48] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.792826][ T48] bridge_slave_1: left allmulticast mode [ 85.798461][ T48] bridge_slave_1: left promiscuous mode [ 85.804757][ T48] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.814803][ T48] bridge_slave_0: left allmulticast mode [ 85.820438][ T48] bridge_slave_0: left promiscuous mode [ 85.826538][ T48] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.845641][ T48] veth1_macvtap: left promiscuous mode [ 85.851645][ T48] veth0_macvtap: left promiscuous mode [ 85.857391][ T48] veth1_vlan: left promiscuous mode [ 85.863367][ T48] veth0_vlan: left promiscuous mode [ 86.211027][ T48] team0 (unregistering): Port device team_slave_1 removed [ 86.239180][ T48] team0 (unregistering): Port device team_slave_0 removed [ 86.267099][ T48] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 86.294896][ T48] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 86.478610][ T48] bond0 (unregistering): Released all slaves [ 86.573542][ T5884] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.585197][ T60] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.592297][ T60] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.612275][ T60] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.619378][ T60] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.792713][ T1189] cfg80211: failed to load regulatory.db [ 86.802437][ T5884] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.845318][ T5884] veth0_vlan: entered promiscuous mode [ 86.855812][ T5884] veth1_vlan: entered promiscuous mode [ 86.893637][ T5884] veth0_macvtap: entered promiscuous mode [ 86.912892][ T5884] veth1_macvtap: entered promiscuous mode [ 86.932117][ T5884] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.947218][ T5884] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.960432][ T5884] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.969715][ T5884] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.979532][ T5884] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.989084][ T5884] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.047984][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.064670][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.122301][ T60] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.130172][ T60] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.201593][ T5930] [ 87.204078][ T5930] ============================= [ 87.208927][ T5930] WARNING: suspicious RCU usage [ 87.214098][ T5930] syzkaller #0 Not tainted [ 87.218518][ T5930] ----------------------------- [ 87.223476][ T5930] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 87.232094][ T5930] [ 87.232094][ T5930] other info that might help us debug this: [ 87.232094][ T5930] [ 87.242627][ T5930] [ 87.242627][ T5930] rcu_scheduler_active = 2, debug_locks = 1 [ 87.251014][ T5930] 1 lock held by syz.0.17/5930: [ 87.256218][ T5930] #0: ffffffff8d132300 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 87.266690][ T5930] [ 87.266690][ T5930] stack backtrace: [ 87.272952][ T5930] CPU: 0 PID: 5930 Comm: syz.0.17 Not tainted syzkaller #0 [ 87.280149][ T5930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 87.290214][ T5930] Call Trace: [ 87.293485][ T5930] [ 87.296400][ T5930] dump_stack_lvl+0x18c/0x250 [ 87.301088][ T5930] ? show_regs_print_info+0x20/0x20 [ 87.306323][ T5930] ? load_image+0x420/0x420 [ 87.310816][ T5930] ? __lock_acquire+0x1273/0x7d40 [ 87.315834][ T5930] lockdep_rcu_suspicious+0x1e1/0x300 [ 87.321203][ T5930] get_callchain_entry+0x2a9/0x3c0 [ 87.326317][ T5930] get_perf_callchain+0xc6/0x510 [ 87.331240][ T5930] ? put_callchain_entry+0xb0/0xb0 [ 87.336337][ T5930] ? __lock_acquire+0x7d40/0x7d40 [ 87.341358][ T5930] ? rcu_read_lock_sched_held+0x8a/0x110 [ 87.347001][ T5930] __bpf_get_stack+0x2e4/0x540 [ 87.351759][ T5930] ? stack_map_get_build_id_offset+0x720/0x720 [ 87.357904][ T5930] ? bpf_prog_f2602e8b9b2ace7f_F+0x31/0x33 [ 87.363709][ T5930] bpf_get_stack_raw_tp+0x1a9/0x210 [ 87.368913][ T5930] bpf_prog_f2602e8b9b2ace7f_F+0x31/0x33 [ 87.374554][ T5930] bpf_prog_7a9b855b8de32969+0x20/0x29 [ 87.380012][ T5930] bpf_prog_run_pin_on_cpu+0x64/0x150 [ 87.385385][ T5930] bpf_prog_test_run_syscall+0x317/0x4a0 [ 87.391028][ T5930] ? sock_gen_cookie+0x60/0x60 [ 87.395789][ T5930] ? __fdget+0x14a/0x210 [ 87.400024][ T5930] ? sock_gen_cookie+0x60/0x60 [ 87.404781][ T5930] bpf_prog_test_run+0x321/0x390 [ 87.409712][ T5930] __sys_bpf+0x49d/0x890 [ 87.413957][ T5930] ? bpf_link_show_fdinfo+0x390/0x390 [ 87.419331][ T5930] ? lock_chain_count+0x20/0x20 [ 87.424189][ T5930] __x64_sys_bpf+0x7c/0x90 [ 87.428600][ T5930] do_syscall_64+0x55/0xb0 [ 87.433011][ T5930] ? clear_bhb_loop+0x40/0x90 [ 87.437681][ T5930] ? clear_bhb_loop+0x40/0x90 [ 87.442378][ T5930] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 87.448270][ T5930] RIP: 0033:0x7f6e9299ce59 [ 87.452675][ T5930] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 87.472276][ T5930] RSP: 002b:00007fff53b5bde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 87.480681][ T5930] RAX: ffffffffffffffda RBX: 00007f6e92c15fa0 RCX: 00007f6e9299ce59 [ 87.488646][ T5930] RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a [ 87.496606][ T5930] RBP: 00007f6e92a32d6f R08: 0000000000000000 R09: 0000000000000000 [ 87.504568][ T5930] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.512528][ T5930] R13: 00007f6e92c15fac R14: 00007f6e92c15fa0 R15: 00007f6e92c15fa0 [ 87.520502][ T5930]