Warning: Permanently added '10.128.0.246' (ED25519) to the list of known hosts. 2026/06/23 05:19:38 parsed 1 programs 2026/06/23 05:19:38 serving rpc on tcp://40695 [ 72.383242][ T4200] cgroup: Unknown subsys name 'net' [ 72.505817][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.085736][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.513046][ T4232] chnl_net:caif_netlink_parms(): no params data found [ 76.587481][ T4232] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.596633][ T4232] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.605204][ T4232] device bridge_slave_0 entered promiscuous mode [ 76.616465][ T4232] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.624110][ T4232] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.633600][ T4232] device bridge_slave_1 entered promiscuous mode [ 76.661390][ T4232] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.674393][ T4232] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.706172][ T4232] team0: Port device team_slave_0 added [ 76.716002][ T4232] team0: Port device team_slave_1 added [ 76.738860][ T4232] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.745854][ T4232] 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. [ 76.772448][ T4232] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.786011][ T4232] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.793246][ T4232] 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. [ 76.819271][ T4232] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.860227][ T4232] device hsr_slave_0 entered promiscuous mode [ 76.867283][ T4232] device hsr_slave_1 entered promiscuous mode [ 77.009863][ T4232] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.023283][ T4232] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.034220][ T4232] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.045544][ T4232] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.080069][ T4232] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.087992][ T4232] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.098934][ T4232] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.106241][ T4232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.172634][ T4232] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.190280][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.210955][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.222162][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.231170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.248881][ T4232] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.262505][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.271748][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.278889][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.294585][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.304921][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.312086][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.339697][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.362008][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.371566][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.382020][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.397631][ T4232] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.411088][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.421362][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.548600][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.556171][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.571407][ T4232] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.604820][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.614576][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.637628][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.649816][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.659485][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.667504][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.682172][ T4232] device veth0_vlan entered promiscuous mode [ 77.693732][ T4232] device veth1_vlan entered promiscuous mode [ 77.713849][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.722142][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.731755][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.741359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.752384][ T4232] device veth0_macvtap entered promiscuous mode [ 77.763852][ T4232] device veth1_macvtap entered promiscuous mode [ 77.799827][ T4232] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.807479][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.822661][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.838595][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.847391][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.867460][ T4232] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.881076][ T4232] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.890478][ T4232] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.899414][ T4232] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.908134][ T4232] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.925032][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.933943][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.675709][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.695896][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.724964][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.749859][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.757733][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.767022][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.261317][ T1256] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/06/23 05:19:48 executed programs: 0 [ 80.446749][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 80.496878][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.504590][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.512880][ T4297] device bridge_slave_0 entered promiscuous mode [ 80.521809][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.529880][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.537745][ T4297] device bridge_slave_1 entered promiscuous mode [ 80.559655][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.571618][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.594479][ T4297] team0: Port device team_slave_0 added [ 80.602343][ T4297] team0: Port device team_slave_1 added [ 80.620696][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.627772][ T4297] 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. [ 80.653815][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.665931][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.673222][ T4297] 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. [ 80.699155][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.733648][ T4297] device hsr_slave_0 entered promiscuous mode [ 80.740734][ T4297] device hsr_slave_1 entered promiscuous mode [ 80.747342][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 80.755556][ T4297] Cannot create hsr debugfs directory [ 82.399128][ T4250] Bluetooth: hci0: command 0x0409 tx timeout [ 82.826338][ T1256] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.893902][ T1256] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.936999][ T1256] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.782131][ T4297] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.794294][ T4297] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.805058][ T4297] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.815664][ T4297] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.965887][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.982534][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.994776][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.007086][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.069660][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.079277][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.088099][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.095422][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.104848][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.114680][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.123781][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.130925][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.139941][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.160160][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.173577][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.182483][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.191789][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.201165][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.209991][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.218769][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.227152][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.242872][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.254177][ T4297] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.265575][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.277199][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.286520][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.422069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.429719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.443853][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.468407][ T4240] Bluetooth: hci0: command 0x041b tx timeout [ 84.496972][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.511281][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.551089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.560995][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.571783][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.583059][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.593704][ T4297] device veth0_vlan entered promiscuous mode [ 84.623352][ T4297] device veth1_vlan entered promiscuous mode [ 84.643212][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.652531][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.661364][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.670713][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.681607][ T4297] device veth0_macvtap entered promiscuous mode [ 84.693113][ T4297] device veth1_macvtap entered promiscuous mode [ 84.725425][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 84.736849][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 84.748912][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.756379][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.765534][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.774269][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.784308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.800928][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 84.813083][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 84.825381][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.840599][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.850697][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.864143][ T4297] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.877782][ T4297] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.891109][ T4297] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.900341][ T4297] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.981985][ T1256] device hsr_slave_0 left promiscuous mode [ 84.988559][ T1256] device hsr_slave_1 left promiscuous mode [ 84.995143][ T1256] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.004614][ T1256] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.013827][ T1256] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.021341][ T1256] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.031660][ T1256] device bridge_slave_1 left promiscuous mode [ 85.038806][ T1256] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.052508][ T1256] device bridge_slave_0 left promiscuous mode [ 85.060206][ T1256] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.078128][ T1256] device veth1_macvtap left promiscuous mode [ 85.084671][ T1256] device veth0_macvtap left promiscuous mode [ 85.090894][ T1256] device veth1_vlan left promiscuous mode [ 85.096842][ T1256] device veth0_vlan left promiscuous mode [ 85.284997][ T1256] team0 (unregistering): Port device team_slave_1 removed [ 85.300198][ T1256] team0 (unregistering): Port device team_slave_0 removed [ 85.314160][ T1256] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.334052][ T1256] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.395994][ T1256] bond0 (unregistering): Released all slaves [ 85.458412][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.466720][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.477198][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.506848][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.519737][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.528133][ T4267] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.655426][ T4367] [ 85.658374][ T4367] ====================================================== [ 85.665902][ T4367] WARNING: possible circular locking dependency detected [ 85.673203][ T4367] syzkaller #0 Not tainted [ 85.677645][ T4367] ------------------------------------------------------ [ 85.684689][ T4367] syz.0.17/4367 is trying to acquire lock: [ 85.690516][ T4367] ffff888060845028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 85.701720][ T4367] [ 85.701720][ T4367] but task is already holding lock: [ 85.709405][ T4367] ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 85.719106][ T4367] [ 85.719106][ T4367] which lock already depends on the new lock. [ 85.719106][ T4367] [ 85.729679][ T4367] [ 85.729679][ T4367] the existing dependency chain (in reverse order) is: [ 85.738728][ T4367] [ 85.738728][ T4367] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.746793][ T4367] __mutex_lock_common+0x1e5/0x2400 [ 85.752573][ T4367] mutex_lock_nested+0x17/0x20 [ 85.757893][ T4367] rfkill_register+0x2f/0x970 [ 85.763208][ T4367] hci_register_dev+0x459/0x980 [ 85.768619][ T4367] vhci_create_device+0x32e/0x5c0 [ 85.774199][ T4367] vhci_write+0x389/0x440 [ 85.779091][ T4367] vfs_write+0x748/0xd70 [ 85.784187][ T4367] ksys_write+0x153/0x260 [ 85.789159][ T4367] do_syscall_64+0x4c/0xa0 [ 85.794132][ T4367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.800580][ T4367] [ 85.800580][ T4367] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.808435][ T4367] __mutex_lock_common+0x1e5/0x2400 [ 85.814191][ T4367] mutex_lock_nested+0x17/0x20 [ 85.819520][ T4367] vhci_send_frame+0x88/0x100 [ 85.824755][ T4367] hci_send_frame+0x1a9/0x2e0 [ 85.829990][ T4367] hci_tx_work+0x9b5/0x16d0 [ 85.835049][ T4367] process_one_work+0x867/0xff0 [ 85.840453][ T4367] worker_thread+0xad7/0x12a0 [ 85.845685][ T4367] kthread+0x42e/0x520 [ 85.850303][ T4367] ret_from_fork+0x1f/0x30 [ 85.855290][ T4367] [ 85.855290][ T4367] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.864624][ T4367] __flush_work+0x116/0x210 [ 85.869901][ T4367] hci_dev_do_close+0x201/0x1020 [ 85.876187][ T4367] hci_unregister_dev+0x2eb/0x590 [ 85.882060][ T4367] vhci_release+0x73/0xc0 [ 85.887028][ T4367] __fput+0x212/0x8c0 [ 85.891566][ T4367] task_work_run+0x125/0x1a0 [ 85.896801][ T4367] do_exit+0x635/0x2110 [ 85.901510][ T4367] do_group_exit+0x12c/0x2f0 [ 85.906651][ T4367] get_signal+0x7eb/0x12e0 [ 85.911745][ T4367] arch_do_signal_or_restart+0xe6/0x12a0 [ 85.918025][ T4367] exit_to_user_mode_loop+0x9e/0x130 [ 85.924084][ T4367] exit_to_user_mode_prepare+0xee/0x180 [ 85.930189][ T4367] syscall_exit_to_user_mode+0x16/0x40 [ 85.936203][ T4367] do_syscall_64+0x58/0xa0 [ 85.941181][ T4367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.947637][ T4367] [ 85.947637][ T4367] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.955306][ T4367] __mutex_lock_common+0x1e5/0x2400 [ 85.961065][ T4367] mutex_lock_nested+0x17/0x20 [ 85.966393][ T4367] bg_scan_update+0x44/0x3b0 [ 85.971539][ T4367] process_one_work+0x867/0xff0 [ 85.976944][ T4367] worker_thread+0xad7/0x12a0 [ 85.982183][ T4367] kthread+0x42e/0x520 [ 85.986810][ T4367] ret_from_fork+0x1f/0x30 [ 85.991778][ T4367] [ 85.991778][ T4367] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.001629][ T4367] __lock_acquire+0x2c66/0x7b50 [ 86.007047][ T4367] lock_acquire+0x19e/0x400 [ 86.012111][ T4367] __flush_work+0x116/0x210 [ 86.017171][ T4367] __cancel_work_timer+0x3f4/0x560 [ 86.022840][ T4367] hci_request_cancel_all+0xcc/0x300 [ 86.028683][ T4367] hci_dev_do_close+0x4e/0x1020 [ 86.034104][ T4367] hci_rfkill_set_block+0x101/0x180 [ 86.039950][ T4367] rfkill_set_block+0x1c1/0x3c0 [ 86.045358][ T4367] rfkill_fop_write+0x453/0x560 [ 86.050767][ T4367] vfs_write+0x304/0xd70 [ 86.055588][ T4367] ksys_write+0x153/0x260 [ 86.060472][ T4367] do_syscall_64+0x4c/0xa0 [ 86.065455][ T4367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.071903][ T4367] [ 86.071903][ T4367] other info that might help us debug this: [ 86.071903][ T4367] [ 86.082353][ T4367] Chain exists of: [ 86.082353][ T4367] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.082353][ T4367] [ 86.098386][ T4367] Possible unsafe locking scenario: [ 86.098386][ T4367] [ 86.105868][ T4367] CPU0 CPU1 [ 86.111273][ T4367] ---- ---- [ 86.116659][ T4367] lock(rfkill_global_mutex); [ 86.121458][ T4367] lock(&data->open_mutex); [ 86.128606][ T4367] lock(rfkill_global_mutex); [ 86.136009][ T4367] lock((work_completion)(&hdev->bg_scan_update)); [ 86.142634][ T4367] [ 86.142634][ T4367] *** DEADLOCK *** [ 86.142634][ T4367] [ 86.150818][ T4367] 1 lock held by syz.0.17/4367: [ 86.155703][ T4367] #0: ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 86.166467][ T4367] [ 86.166467][ T4367] stack backtrace: [ 86.172696][ T4367] CPU: 1 PID: 4367 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.180194][ T4367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 86.190447][ T4367] Call Trace: [ 86.193729][ T4367] [ 86.196661][ T4367] dump_stack_lvl+0x188/0x250 [ 86.201371][ T4367] ? load_image+0x410/0x410 [ 86.205899][ T4367] ? show_regs_print_info+0x20/0x20 [ 86.211107][ T4367] ? print_circular_bug+0x12b/0x1a0 [ 86.216330][ T4367] check_noncircular+0x296/0x330 [ 86.221354][ T4367] ? look_up_lock_class+0x71/0x110 [ 86.226484][ T4367] ? add_chain_block+0x9b0/0x9b0 [ 86.231429][ T4367] ? lockdep_lock+0xf1/0x1f0 [ 86.236051][ T4367] ? __lock_acquire+0x1305/0x7b50 [ 86.241100][ T4367] ? mark_lock+0x94/0x320 [ 86.245439][ T4367] ? _find_first_zero_bit+0xd1/0xf0 [ 86.250678][ T4367] __lock_acquire+0x2c66/0x7b50 [ 86.255569][ T4367] ? verify_lock_unused+0x140/0x140 [ 86.260808][ T4367] ? verify_lock_unused+0x140/0x140 [ 86.266082][ T4367] lock_acquire+0x19e/0x400 [ 86.270630][ T4367] ? __flush_work+0xfa/0x210 [ 86.275377][ T4367] ? __lock_acquire+0x7b50/0x7b50 [ 86.280452][ T4367] ? read_lock_is_recursive+0x10/0x10 [ 86.286163][ T4367] ? start_flush_work+0x784/0x830 [ 86.292060][ T4367] __flush_work+0x116/0x210 [ 86.298185][ T4367] ? __flush_work+0xfa/0x210 [ 86.303679][ T4367] ? flush_work+0x20/0x20 [ 86.309231][ T4367] ? try_to_grab_pending+0xfb/0x820 [ 86.319885][ T4367] ? mark_lock+0x94/0x320 [ 86.324264][ T4367] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 86.330815][ T4367] ? lock_chain_count+0x20/0x20 [ 86.335754][ T4367] ? mark_lock+0x94/0x320 [ 86.340642][ T4367] ? __cancel_work_timer+0x36a/0x560 [ 86.345973][ T4367] __cancel_work_timer+0x3f4/0x560 [ 86.351124][ T4367] ? cancel_work_sync+0x20/0x20 [ 86.356044][ T4367] ? __cancel_work+0x1f9/0x2e0 [ 86.360848][ T4367] ? lockdep_hardirqs_on+0x94/0x140 [ 86.366786][ T4367] ? __cancel_work+0x27b/0x2e0 [ 86.371608][ T4367] ? cancel_work+0x20/0x20 [ 86.376075][ T4367] hci_request_cancel_all+0xcc/0x300 [ 86.381588][ T4367] hci_dev_do_close+0x4e/0x1020 [ 86.386801][ T4367] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 86.392734][ T4367] ? _raw_spin_unlock+0x40/0x40 [ 86.397636][ T4367] hci_rfkill_set_block+0x101/0x180 [ 86.402966][ T4367] ? rcu_lock_release+0x20/0x20 [ 86.407858][ T4367] rfkill_set_block+0x1c1/0x3c0 [ 86.412755][ T4367] rfkill_fop_write+0x453/0x560 [ 86.417642][ T4367] ? rfkill_fop_read+0x560/0x560 [ 86.422750][ T4367] ? common_file_perm+0x120/0x1c0 [ 86.428171][ T4367] ? fsnotify_perm+0x5d/0x560 [ 86.433096][ T4367] ? security_file_permission+0x75/0xa0 [ 86.439112][ T4367] ? rfkill_fop_read+0x560/0x560 [ 86.444422][ T4367] vfs_write+0x304/0xd70 [ 86.448727][ T4367] ? file_end_write+0x250/0x250 [ 86.453797][ T4367] ? __context_tracking_exit+0x4c/0x80 [ 86.459488][ T4367] ? __fdget_pos+0x1e2/0x370 [ 86.464117][ T4367] ksys_write+0x153/0x260 [ 86.468489][ T4367] ? __ia32_sys_read+0x80/0x80 [ 86.473332][ T4367] ? lockdep_hardirqs_on+0x94/0x140 [ 86.478571][ T4367] do_syscall_64+0x4c/0xa0 [ 86.483059][ T4367] ? clear_bhb_loop+0x30/0x80 [ 86.487767][ T4367] ? clear_bhb_loop+0x30/0x80 [ 86.492521][ T4367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.498465][ T4367] RIP: 0033:0x7fbd13211e59 [ 86.502926][ T4367] 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 [ 86.523126][ T4367] RSP: 002b:00007ffe5558b618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.531580][ T4367] RAX: ffffffffffffffda RBX: 00007fbd1348afa0 RCX: 00007fbd13211e59 [ 86.539720][ T4367] RDX: 0000000000000008 RSI: 0000200000000380 RDI: 0000000000000003 [ 86.547726][ T4367] RBP: 00007fbd132a7e6f R08: 0000000000000000 R09: 0000000000000000 [ 86.555736][ T4367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.561591][ T4246] Bluetooth: hci0: command 0x040f tx timeout [ 86.563739][ T4367] R13: 00007fbd1348afac R14: 00007fbd1348afa0 R15: 00007fbd1348afa0 [ 86.577776][ T4367] [ 86.711377][ T1107] cfg80211: failed to load regulatory.db