no interfaces have a carrier [ 27.749628][ T3854] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.763990][ T3854] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.120' (ED25519) to the list of known hosts. 2025/10/24 15:51:43 parsed 1 programs syzkaller login: [ 55.452965][ T4188] cgroup: Unknown subsys name 'net' [ 55.599595][ T4188] cgroup: Unknown subsys name 'rlimit' [ 56.936939][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 59.160650][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.174914][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.190182][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.208426][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.217567][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.227879][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.341096][ T4255] chnl_net:caif_netlink_parms(): no params data found [ 60.415467][ T4255] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.423060][ T4255] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.431518][ T4255] device bridge_slave_0 entered promiscuous mode [ 60.440596][ T4255] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.448102][ T4255] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.455999][ T4255] device bridge_slave_1 entered promiscuous mode [ 60.475645][ T4255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.486274][ T4255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.507543][ T4255] team0: Port device team_slave_0 added [ 60.514897][ T4255] team0: Port device team_slave_1 added [ 60.530438][ T4255] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.537480][ T4255] 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. [ 60.563789][ T4255] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.576791][ T4255] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.583737][ T4255] 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. [ 60.610149][ T4255] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.636584][ T4255] device hsr_slave_0 entered promiscuous mode [ 60.643619][ T4255] device hsr_slave_1 entered promiscuous mode [ 60.718812][ T4255] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.728980][ T4255] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.737623][ T4255] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.746938][ T4255] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.770691][ T4255] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.777848][ T4255] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.785850][ T4255] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.793090][ T4255] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.829956][ T4255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.842247][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.851732][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.860494][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.869170][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 60.881473][ T4255] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.892915][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.901562][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.908697][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.920800][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.931027][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.938131][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.973980][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.991064][ T4255] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.001756][ T4255] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.014788][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.022885][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.031954][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.042356][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.050879][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.157313][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.166156][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.178768][ T4255] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.211371][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.233855][ T4255] device veth0_vlan entered promiscuous mode [ 61.241331][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.251256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.259567][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.283356][ T4255] device veth1_vlan entered promiscuous mode [ 61.301611][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.310537][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.320958][ T4255] device veth0_macvtap entered promiscuous mode [ 61.332195][ T4255] device veth1_macvtap entered promiscuous mode [ 61.367148][ T4255] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.375317][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.383376][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.392480][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.401602][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.414151][ T4255] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.421830][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.431120][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.462118][ T4255] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.471878][ T4255] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.481215][ T4255] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.490208][ T4255] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.612330][ T4255] syz-executor (4255) used greatest stack depth: 20928 bytes left 2025/10/24 15:51:51 executed programs: 0 [ 62.132672][ T4303] chnl_net:caif_netlink_parms(): no params data found [ 62.189178][ T4303] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.197093][ T4303] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.205223][ T4303] device bridge_slave_0 entered promiscuous mode [ 62.215521][ T4303] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.222768][ T4303] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.230868][ T4303] device bridge_slave_1 entered promiscuous mode [ 62.266137][ T4303] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.278764][ T4303] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.310837][ T4303] team0: Port device team_slave_0 added [ 62.321277][ T4303] team0: Port device team_slave_1 added [ 62.342906][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.349960][ T4303] 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. [ 62.376484][ T4303] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.389886][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.397183][ T4303] 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. [ 62.423595][ T4303] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.463344][ T4303] device hsr_slave_0 entered promiscuous mode [ 62.470191][ T4303] device hsr_slave_1 entered promiscuous mode [ 62.477123][ T4303] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 62.485569][ T4303] Cannot create hsr debugfs directory [ 62.574085][ T4303] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.035363][ T4276] Bluetooth: hci0: command 0x0409 tx timeout [ 65.150973][ T4303] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.114685][ T4277] Bluetooth: hci0: command 0x041b tx timeout [ 66.942421][ T4303] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.060635][ T4303] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.229148][ T4303] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.238082][ T4303] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.247713][ T4303] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.257475][ T4303] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.309345][ T4303] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.330694][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.339766][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.350651][ T4303] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.365692][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.375172][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.383483][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.390553][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.399190][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.414131][ T1239] device hsr_slave_0 left promiscuous mode [ 67.420677][ T1239] device hsr_slave_1 left promiscuous mode [ 67.427559][ T1239] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.435884][ T1239] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.444309][ T1239] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.451803][ T1239] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.459478][ T1239] device bridge_slave_1 left promiscuous mode [ 67.465902][ T1239] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.478973][ T1239] device bridge_slave_0 left promiscuous mode [ 67.485399][ T1239] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.500098][ T1239] device veth1_macvtap left promiscuous mode [ 67.507000][ T1239] device veth0_macvtap left promiscuous mode [ 67.513032][ T1239] device veth1_vlan left promiscuous mode [ 67.519113][ T1239] device veth0_vlan left promiscuous mode [ 67.639157][ T1239] team0 (unregistering): Port device team_slave_1 removed [ 67.652743][ T1239] team0 (unregistering): Port device team_slave_0 removed [ 67.665773][ T1239] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.678962][ T1239] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.730710][ T1239] bond0 (unregistering): Released all slaves [ 67.778419][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.787219][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.795679][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.802734][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.812060][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.824309][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.842352][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.858611][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.867379][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.880225][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.889302][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.898120][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.906968][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.918130][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.927133][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.944652][ T4303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.031025][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.038935][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.051777][ T4303] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.075557][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.085400][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.096072][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.104311][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.114295][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.122559][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.130739][ T4303] device veth0_vlan entered promiscuous mode [ 68.156947][ T4303] device veth1_vlan entered promiscuous mode [ 68.180220][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.190663][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.198584][ T4276] Bluetooth: hci0: command 0x040f tx timeout [ 68.207201][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.216462][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.228603][ T4303] device veth0_macvtap entered promiscuous mode [ 68.238651][ T4303] device veth1_macvtap entered promiscuous mode [ 68.257931][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.266714][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.276079][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.284171][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.294105][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.307453][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.316244][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.325484][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.339521][ T4303] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.348938][ T4303] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.359585][ T4303] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.368626][ T4303] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.421688][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.440266][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.449418][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.463734][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 2025/10/24 15:51:58 executed programs: 2 [ 68.472532][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.483170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.718229][ T15] [ 69.720579][ T15] ====================================================== [ 69.727574][ T15] WARNING: possible circular locking dependency detected [ 69.734575][ T15] syzkaller #0 Not tainted [ 69.738989][ T15] ------------------------------------------------------ [ 69.745984][ T15] rcu_preempt/15 is trying to acquire lock: [ 69.751862][ T15] ffff888078c44238 (&trie->lock){....}-{2:2}, at: trie_delete_elem+0x90/0x710 [ 69.760732][ T15] [ 69.760732][ T15] but task is already holding lock: [ 69.768075][ T15] ffff8880b90280d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x123/0x270 [ 69.776922][ T15] [ 69.776922][ T15] which lock already depends on the new lock. [ 69.776922][ T15] [ 69.787299][ T15] [ 69.787299][ T15] the existing dependency chain (in reverse order) is: [ 69.796288][ T15] [ 69.796288][ T15] -> #2 (&base->lock){-.-.}-{2:2}: [ 69.803657][ T15] _raw_spin_lock_irqsave+0xa4/0xf0 [ 69.809359][ T15] lock_timer_base+0x123/0x270 [ 69.814624][ T15] __mod_timer+0x117/0xd20 [ 69.819540][ T15] queue_delayed_work_on+0x126/0x1e0 [ 69.825323][ T15] kvfree_call_rcu+0x4a9/0x7c0 [ 69.830592][ T15] rtnl_register_internal+0x44e/0x540 [ 69.836466][ T15] rtnl_register+0x2e/0x70 [ 69.841395][ T15] ip_rt_init+0x2e0/0x3a0 [ 69.846225][ T15] ip_init+0xa/0x20 [ 69.850535][ T15] inet_init+0x28b/0x3a0 [ 69.855280][ T15] do_one_initcall+0x1ee/0x680 [ 69.860550][ T15] do_initcall_level+0x137/0x1f0 [ 69.865994][ T15] do_initcalls+0x4b/0x90 [ 69.870849][ T15] kernel_init_freeable+0x3ce/0x560 [ 69.876543][ T15] kernel_init+0x19/0x1b0 [ 69.881370][ T15] ret_from_fork+0x1f/0x30 [ 69.886286][ T15] [ 69.886286][ T15] -> #1 (krc.lock){..-.}-{2:2}: [ 69.893295][ T15] _raw_spin_lock+0x2a/0x40 [ 69.898307][ T15] kvfree_call_rcu+0x186/0x7c0 [ 69.903567][ T15] trie_update_elem+0x86e/0xc50 [ 69.908919][ T15] bpf_map_update_value+0x57d/0x650 [ 69.914616][ T15] generic_map_update_batch+0x525/0x7c0 [ 69.920662][ T15] bpf_map_do_batch+0x466/0x600 [ 69.926012][ T15] __sys_bpf+0x601/0x670 [ 69.930768][ T15] __x64_sys_bpf+0x78/0x90 [ 69.935684][ T15] do_syscall_64+0x4c/0xa0 [ 69.940598][ T15] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.946990][ T15] [ 69.946990][ T15] -> #0 (&trie->lock){....}-{2:2}: [ 69.954260][ T15] __lock_acquire+0x2c33/0x7c60 [ 69.959611][ T15] lock_acquire+0x197/0x3f0 [ 69.964610][ T15] _raw_spin_lock_irqsave+0xa4/0xf0 [ 69.970318][ T15] trie_delete_elem+0x90/0x710 [ 69.975848][ T15] bpf_prog_5186c38a4019a4cb+0x42/0xfb4 [ 69.982001][ T15] bpf_trace_run3+0x17e/0x320 [ 69.987198][ T15] enqueue_timer+0x394/0x520 [ 69.992346][ T15] __mod_timer+0x8e1/0xd20 [ 69.997277][ T15] schedule_timeout+0x157/0x280 [ 70.002635][ T15] rcu_gp_fqs_loop+0x29e/0x11b0 [ 70.007990][ T15] rcu_gp_kthread+0x98/0x350 [ 70.013079][ T15] kthread+0x436/0x520 [ 70.017656][ T15] ret_from_fork+0x1f/0x30 [ 70.022578][ T15] [ 70.022578][ T15] other info that might help us debug this: [ 70.022578][ T15] [ 70.032783][ T15] Chain exists of: [ 70.032783][ T15] &trie->lock --> krc.lock --> &base->lock [ 70.032783][ T15] [ 70.044491][ T15] Possible unsafe locking scenario: [ 70.044491][ T15] [ 70.051928][ T15] CPU0 CPU1 [ 70.057372][ T15] ---- ---- [ 70.062724][ T15] lock(&base->lock); [ 70.066797][ T15] lock(krc.lock); [ 70.073206][ T15] lock(&base->lock); [ 70.079770][ T15] lock(&trie->lock); [ 70.083816][ T15] [ 70.083816][ T15] *** DEADLOCK *** [ 70.083816][ T15] [ 70.091933][ T15] 2 locks held by rcu_preempt/15: [ 70.096931][ T15] #0: ffff8880b90280d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x123/0x270 [ 70.106222][ T15] #1: ffffffff8c11c720 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 70.115853][ T15] [ 70.115853][ T15] stack backtrace: [ 70.121733][ T15] CPU: 0 PID: 15 Comm: rcu_preempt Not tainted syzkaller #0 [ 70.129110][ T15] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 70.139164][ T15] Call Trace: [ 70.142439][ T15] [ 70.145358][ T15] dump_stack_lvl+0x168/0x230 [ 70.150020][ T15] ? load_image+0x3b0/0x3b0 [ 70.154504][ T15] ? show_regs_print_info+0x20/0x20 [ 70.159686][ T15] ? print_circular_bug+0x12b/0x1a0 [ 70.164863][ T15] check_noncircular+0x274/0x310 [ 70.169795][ T15] ? add_chain_block+0x940/0x940 [ 70.174721][ T15] ? lockdep_lock+0xdc/0x1e0 [ 70.179294][ T15] ? mark_lock+0x94/0x320 [ 70.183611][ T15] __lock_acquire+0x2c33/0x7c60 [ 70.188459][ T15] ? __lock_acquire+0x13ad/0x7c60 [ 70.193479][ T15] ? __lock_acquire+0x12d9/0x7c60 [ 70.198492][ T15] ? verify_lock_unused+0x140/0x140 [ 70.203682][ T15] ? __lock_acquire+0x13ad/0x7c60 [ 70.208749][ T15] lock_acquire+0x197/0x3f0 [ 70.213234][ T15] ? trie_delete_elem+0x90/0x710 [ 70.218151][ T15] ? verify_lock_unused+0x140/0x140 [ 70.223328][ T15] ? __lock_acquire+0x13ad/0x7c60 [ 70.228334][ T15] ? read_lock_is_recursive+0x10/0x10 [ 70.233688][ T15] _raw_spin_lock_irqsave+0xa4/0xf0 [ 70.238867][ T15] ? trie_delete_elem+0x90/0x710 [ 70.243786][ T15] ? _raw_spin_lock+0x40/0x40 [ 70.248445][ T15] trie_delete_elem+0x90/0x710 [ 70.253188][ T15] ? __rwlock_init+0x140/0x140 [ 70.257932][ T15] bpf_prog_5186c38a4019a4cb+0x42/0xfb4 [ 70.263459][ T15] bpf_trace_run3+0x17e/0x320 [ 70.268113][ T15] ? bpf_trace_run2+0x2d0/0x2d0 [ 70.272944][ T15] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 70.278824][ T15] enqueue_timer+0x394/0x520 [ 70.283400][ T15] __mod_timer+0x8e1/0xd20 [ 70.287803][ T15] schedule_timeout+0x157/0x280 [ 70.292642][ T15] ? console_conditional_schedule+0x40/0x40 [ 70.298521][ T15] ? update_process_times+0x200/0x200 [ 70.303878][ T15] ? prepare_to_swait_event+0x331/0x350 [ 70.309409][ T15] rcu_gp_fqs_loop+0x29e/0x11b0 [ 70.314244][ T15] ? lockdep_hardirqs_on+0x94/0x140 [ 70.319437][ T15] ? rcu_gp_init+0xd58/0x10e0 [ 70.324111][ T15] ? rcu_gp_init+0x10e0/0x10e0 [ 70.328865][ T15] ? _raw_spin_unlock_irq+0x1f/0x40 [ 70.334163][ T15] ? lockdep_hardirqs_on+0x94/0x140 [ 70.339358][ T15] rcu_gp_kthread+0x98/0x350 [ 70.343941][ T15] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 70.349032][ T15] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 70.354911][ T15] ? __kthread_parkme+0x157/0x1b0 [ 70.359922][ T15] kthread+0x436/0x520 [ 70.363973][ T15] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 70.369064][ T15] ? kthread_blkcg+0xd0/0xd0 [ 70.373637][ T15] ret_from_fork+0x1f/0x30 [ 70.378045][ T15] [ 70.382532][ T4277] Bluetooth: hci0: command 0x0419 tx timeout [ 71.235951][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.242262][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 2025/10/24 15:52:03 executed programs: 197 [ 76.354908][ T1326] cfg80211: failed to load regulatory.db 2025/10/24 15:52:08 executed programs: 434