no interfaces have a carrier [ 51.683098][ T5286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.696658][ T5286] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.44' (ED25519) to the list of known hosts. 2026/07/27 14:09:54 parsed 1 programs 2026/07/27 14:09:54 serving rpc on tcp://44787 syzkaller login: [ 81.311385][ T5636] cgroup: Unknown subsys name 'net' [ 81.379150][ T5636] cgroup: Unknown subsys name 'cpuset' [ 81.388593][ T5636] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 82.869735][ T5636] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 85.812160][ T5651] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 87.180544][ T5685] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.192000][ T5685] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.202007][ T5685] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.216205][ T5685] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.225394][ T5685] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 87.546212][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.554803][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.590223][ T57] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.599234][ T57] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 89.612717][ T5722] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.620075][ T5722] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.627800][ T5722] bridge_slave_0: entered allmulticast mode [ 89.635535][ T5722] bridge_slave_0: entered promiscuous mode [ 89.645866][ T5722] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.653070][ T5722] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.660437][ T5722] bridge_slave_1: entered allmulticast mode [ 89.667616][ T5722] bridge_slave_1: entered promiscuous mode [ 89.692893][ T5722] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.704432][ T5722] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.731826][ T5722] team0: Port device team_slave_0 added [ 89.739583][ T5722] team0: Port device team_slave_1 added [ 89.761847][ T5722] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.769159][ T5722] 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. [ 89.795093][ T5722] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.807936][ T5722] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.814900][ T5722] 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. [ 89.840995][ T5722] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.882586][ T5722] hsr_slave_0: entered promiscuous mode [ 89.889591][ T5722] hsr_slave_1: entered promiscuous mode [ 90.030239][ T5722] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 90.044475][ T5722] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 90.054473][ T5722] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 90.063748][ T5722] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 90.071792][ T5722] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 90.082096][ T5722] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 90.090648][ T5722] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 90.103654][ T5722] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 90.185350][ T5722] 8021q: adding VLAN 0 to HW filter on device bond0 [ 90.212747][ T5722] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.226871][ T33] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.234611][ T33] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.256129][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.263392][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.570262][ T5722] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 90.621981][ T5722] veth0_vlan: entered promiscuous mode [ 90.635177][ T5722] veth1_vlan: entered promiscuous mode [ 90.670010][ T5722] veth0_macvtap: entered promiscuous mode [ 90.680574][ T5722] veth1_macvtap: entered promiscuous mode [ 90.699430][ T5722] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.714110][ T5722] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.731954][ T33] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.743391][ T33] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.755127][ T33] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.765291][ T33] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.921454][ T33] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.010118][ T33] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.086905][ T33] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.146001][ T33] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/07/27 14:10:07 executed programs: 0 [ 91.316690][ T4940] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 91.325041][ T4940] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 91.337618][ T4940] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 91.347153][ T4940] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 91.355133][ T4940] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 91.743915][ T5764] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.751424][ T5764] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.758722][ T5764] bridge_slave_0: entered allmulticast mode [ 91.765934][ T5764] bridge_slave_0: entered promiscuous mode [ 91.774726][ T5764] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.781908][ T5764] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.789562][ T5764] bridge_slave_1: entered allmulticast mode [ 91.797281][ T5764] bridge_slave_1: entered promiscuous mode [ 91.831807][ T5764] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.845372][ T5764] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.874852][ T5764] team0: Port device team_slave_0 added [ 91.882821][ T5764] team0: Port device team_slave_1 added [ 91.915344][ T5764] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.922446][ T5764] 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. [ 91.948770][ T5764] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.960648][ T5764] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.969444][ T5764] 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. [ 91.971134][ T9] cfg80211: failed to load regulatory.db [ 92.001694][ T5764] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.047752][ T5764] hsr_slave_0: entered promiscuous mode [ 92.054240][ T5764] hsr_slave_1: entered promiscuous mode [ 92.061011][ T5764] debugfs: 'hsr0' already exists in 'hsr' [ 92.067648][ T5764] Cannot create hsr debugfs directory [ 93.275268][ T33] bridge_slave_1: left allmulticast mode [ 93.287639][ T33] bridge_slave_1: left promiscuous mode [ 93.294536][ T33] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.311747][ T33] bridge_slave_0: left allmulticast mode [ 93.317506][ T33] bridge_slave_0: left promiscuous mode [ 93.324438][ T33] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.409764][ T4940] Bluetooth: hci0: command tx timeout [ 93.523107][ T33] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 93.549391][ T33] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 93.559772][ T33] bond0 (unregistering): Released all slaves [ 93.680842][ T33] hsr_slave_0: left promiscuous mode [ 93.687376][ T33] hsr_slave_1: left promiscuous mode [ 93.693795][ T33] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 93.702922][ T33] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 93.718303][ T33] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 93.731971][ T33] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 93.749898][ T33] veth1_macvtap: left promiscuous mode [ 93.757263][ T33] veth0_macvtap: left promiscuous mode [ 93.762923][ T33] veth1_vlan: left promiscuous mode [ 93.768899][ T33] veth0_vlan: left promiscuous mode [ 94.020784][ T33] team0 (unregistering): Port device team_slave_1 removed [ 94.062414][ T33] team0 (unregistering): Port device team_slave_0 removed [ 94.222745][ T5286] 8021q: adding VLAN 0 to HW filter on device eth1 [ 94.505118][ T5764] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.525102][ T5764] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 94.536796][ T5764] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.550131][ T5764] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 94.603993][ T5764] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.620194][ T5764] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 94.634010][ T5764] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.665616][ T5764] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 94.808188][ T5764] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.834742][ T5764] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.857115][ T57] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.864283][ T57] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.881649][ T57] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.888877][ T57] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.169785][ T5764] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.211566][ T5764] veth0_vlan: entered promiscuous mode [ 95.225476][ T5764] veth1_vlan: entered promiscuous mode [ 95.258505][ T5764] veth0_macvtap: entered promiscuous mode [ 95.268729][ T5764] veth1_macvtap: entered promiscuous mode [ 95.289645][ T5764] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.305168][ T5764] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.319037][ T33] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.328948][ T33] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.339650][ T33] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.349411][ T33] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.413277][ T33] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.424147][ T33] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.449308][ T713] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.458247][ T713] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.485824][ T4940] Bluetooth: hci0: command tx timeout [ 95.560905][ T5825] [ 95.563329][ T5825] ============================= [ 95.568386][ T5825] WARNING: suspicious RCU usage [ 95.573845][ T5825] syzkaller #0 Not tainted [ 95.578716][ T5825] ----------------------------- [ 95.584152][ T5825] net/xfrm/xfrm_user.c:1630 suspicious rcu_dereference_check() usage! [ 95.592807][ T5825] [ 95.592807][ T5825] other info that might help us debug this: [ 95.592807][ T5825] [ 95.606458][ T5825] [ 95.606458][ T5825] rcu_scheduler_active = 2, debug_locks = 1 [ 95.614806][ T5825] 1 lock held by syz.0.17/5825: [ 95.619776][ T5825] #0: ffff88801b144390 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{4:4}, at: xfrm_netlink_rcv+0x6a/0x90 [ 95.630348][ T5825] [ 95.630348][ T5825] stack backtrace: [ 95.636402][ T5825] CPU: 0 UID: 0 PID: 5825 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 95.636424][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 95.636443][ T5825] Call Trace: [ 95.636450][ T5825] [ 95.636457][ T5825] dump_stack_lvl+0xe8/0x150 [ 95.636488][ T5825] lockdep_rcu_suspicious+0x13f/0x1d0 [ 95.636518][ T5825] xfrm_nlmsg_multicast+0x1d8/0x1f0 [ 95.636540][ T5825] xfrm_send_migrate_state+0x870/0xae0 [ 95.636580][ T5825] ? __pfx_xfrm_send_migrate_state+0x10/0x10 [ 95.636614][ T5825] ? xfrm_state_migrate_install+0x192/0x630 [ 95.636635][ T5825] xfrm_do_migrate_state+0x1703/0x1e50 [ 95.636666][ T5825] ? __pfx_xfrm_do_migrate_state+0x10/0x10 [ 95.636710][ T5825] ? apparmor_capable+0x126/0x170 [ 95.636738][ T5825] ? __nla_parse+0x40/0x60 [ 95.636769][ T5825] xfrm_user_rcv_msg+0x7a8/0xf30 [ 95.636794][ T5825] ? __pfx_xfrm_user_rcv_msg+0x10/0x10 [ 95.636837][ T5825] ? __mutex_trylock_common+0x15f/0x270 [ 95.636859][ T5825] ? __pfx___mutex_trylock_common+0x10/0x10 [ 95.636880][ T5825] ? rcu_is_watching+0x15/0xb0 [ 95.636898][ T5825] ? trace_contention_end+0x3d/0x140 [ 95.636924][ T5825] netlink_rcv_skb+0x226/0x4a0 [ 95.636949][ T5825] ? __pfx_xfrm_user_rcv_msg+0x10/0x10 [ 95.636969][ T5825] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 95.637001][ T5825] ? netlink_deliver_tap+0x2e/0x1b0 [ 95.637021][ T5825] ? netlink_deliver_tap+0x2e/0x1b0 [ 95.637045][ T5825] xfrm_netlink_rcv+0x79/0x90 [ 95.637066][ T5825] netlink_unicast+0x7bb/0x940 [ 95.637095][ T5825] netlink_sendmsg+0x813/0xb40 [ 95.637125][ T5825] ? __pfx_netlink_sendmsg+0x10/0x10 [ 95.637146][ T5825] ? filemap_map_pages+0x1ccc/0x2090 [ 95.637172][ T5825] ? aa_sock_msg_perm+0xf1/0x1b0 [ 95.637196][ T5825] ? __pfx_netlink_sendmsg+0x10/0x10 [ 95.637217][ T5825] sock_sendmsg_nosec+0x13a/0x180 [ 95.637248][ T5825] ____sys_sendmsg+0x54e/0x850 [ 95.637275][ T5825] ? __pfx_____sys_sendmsg+0x10/0x10 [ 95.637307][ T5825] ? import_iovec+0x73/0xa0 [ 95.637330][ T5825] ___sys_sendmsg+0x2a5/0x360 [ 95.637358][ T5825] ? __pfx____sys_sendmsg+0x10/0x10 [ 95.637383][ T5825] ? futex_wake+0x522/0x5f0 [ 95.637435][ T5825] ? __pfx_do_futex+0x10/0x10 [ 95.637461][ T5825] __x64_sys_sendmsg+0x1b1/0x290 [ 95.637486][ T5825] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 95.637525][ T5825] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.637546][ T5825] do_syscall_64+0x174/0x580 [ 95.637568][ T5825] ? trace_irq_disable+0x3b/0x140 [ 95.637593][ T5825] ? clear_bhb_loop+0x40/0x90 [ 95.637617][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.637636][ T5825] RIP: 0033:0x7fd2b0f9de99 [ 95.637663][ T5825] 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 [ 95.637687][ T5825] RSP: 002b:00007ffca2c8cab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 95.637706][ T5825] RAX: ffffffffffffffda RBX: 00007fd2b1225fa0 RCX: 00007fd2b0f9de99 [ 95.637720][ T5825] RDX: 0000000000000000 RSI: 0000200000000500 RDI: 0000000000000003 [ 95.637731][ T5825] RBP: 00007fd2b1033eaf R08: 0000000000000000 R09: 0000000000000000 [ 95.637743][ T5825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 95.637755][ T5825] R13: 00007fd2b1225fac R14: 00007fd2b1225fa0 R15: 00007fd2b1225fa0 [ 95.637784][ T5825] 2026/07/27 14:10:12 executed programs: 16 [ 97.576067][ T4940] Bluetooth: hci0: command tx timeout [ 99.647477][ T4940] Bluetooth: hci0: command tx timeout 2026/07/27 14:10:17 executed programs: 247