Warning: Permanently added '10.128.1.63' (ED25519) to the list of known hosts. 2025/10/12 18:46:49 parsed 1 programs [ 70.678049][ T4187] cgroup: Unknown subsys name 'net' [ 70.848030][ T4187] cgroup: Unknown subsys name 'rlimit' [ 71.423484][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.430043][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.419025][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.777463][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.792505][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.804484][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.816989][ T4201] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.825404][ T4201] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.834123][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.322627][ T4210] chnl_net:caif_netlink_parms(): no params data found [ 74.379880][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.387738][ T4210] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.395931][ T4210] device bridge_slave_0 entered promiscuous mode [ 74.406176][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.413822][ T4210] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.421848][ T4210] device bridge_slave_1 entered promiscuous mode [ 74.463303][ T4210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.475443][ T4210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.515892][ T4210] team0: Port device team_slave_0 added [ 74.531904][ T4210] team0: Port device team_slave_1 added [ 74.552295][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.559358][ T4210] 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. [ 74.585894][ T4210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.598912][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.606793][ T4210] 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. [ 74.633132][ T4210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.676907][ T4210] device hsr_slave_0 entered promiscuous mode [ 74.684512][ T4210] device hsr_slave_1 entered promiscuous mode [ 74.828896][ T4210] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.842678][ T4210] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.855545][ T4210] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.865939][ T4210] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.954042][ T4210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.967656][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.977847][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.989173][ T4210] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.002418][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.012302][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.022866][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.030283][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.039436][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.055585][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.064788][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.074739][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.081871][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.103899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.113696][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.124828][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.136969][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.156423][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.166711][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.175740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.187085][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.196264][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.211034][ T4210] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.224064][ T4210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.235089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.245214][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.366336][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.374546][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.390883][ T4210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.415878][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.436159][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.457591][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.466787][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.479197][ T4210] device veth0_vlan entered promiscuous mode [ 75.488213][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.496630][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.511663][ T4210] device veth1_vlan entered promiscuous mode [ 75.536818][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.547640][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.557035][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.567089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.580620][ T4210] device veth0_macvtap entered promiscuous mode [ 75.592080][ T4210] device veth1_macvtap entered promiscuous mode [ 75.614157][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.623444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.634394][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.643477][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.653558][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.666948][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.677030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.687151][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.701268][ T4210] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.712111][ T4210] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.721421][ T4210] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.730548][ T4210] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.156550][ T414] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.497412][ T414] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.816606][ T414] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.877645][ T414] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/10/12 18:47:03 executed programs: 0 [ 82.140289][ T4318] chnl_net:caif_netlink_parms(): no params data found [ 82.321485][ T4318] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.328607][ T4318] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.339033][ T4318] device bridge_slave_0 entered promiscuous mode [ 82.359675][ T4318] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.367010][ T4318] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.375527][ T4318] device bridge_slave_1 entered promiscuous mode [ 82.404775][ T4318] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.416741][ T4318] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.440938][ T414] device hsr_slave_0 left promiscuous mode [ 82.447845][ T414] device hsr_slave_1 left promiscuous mode [ 82.455750][ T414] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.463581][ T414] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.472627][ T414] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.480509][ T414] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.488444][ T414] device bridge_slave_1 left promiscuous mode [ 82.496743][ T414] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.514771][ T414] device bridge_slave_0 left promiscuous mode [ 82.521270][ T414] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.539915][ T414] device veth1_macvtap left promiscuous mode [ 82.546572][ T414] device veth0_macvtap left promiscuous mode [ 82.553564][ T414] device veth1_vlan left promiscuous mode [ 82.559674][ T414] device veth0_vlan left promiscuous mode [ 82.724224][ T414] team0 (unregistering): Port device team_slave_1 removed [ 82.738783][ T414] team0 (unregistering): Port device team_slave_0 removed [ 82.753348][ T414] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.768498][ T414] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.828926][ T414] bond0 (unregistering): Released all slaves [ 82.900772][ T4318] team0: Port device team_slave_0 added [ 82.911129][ T4318] team0: Port device team_slave_1 added [ 82.932838][ T4318] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.939820][ T4318] 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. [ 82.966912][ T4318] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.988003][ T4318] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.996006][ T4318] 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. [ 83.026431][ T4318] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.068624][ T4318] device hsr_slave_0 entered promiscuous mode [ 83.075769][ T4318] device hsr_slave_1 entered promiscuous mode [ 83.728910][ T4318] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.743050][ T4318] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.753918][ T4318] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.764208][ T4318] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.901417][ T4281] Bluetooth: hci0: command 0x0409 tx timeout [ 83.915207][ T4318] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.945936][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.962045][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.986394][ T4318] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.004382][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.022008][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.041949][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.049077][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.072391][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.080902][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.090838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.099513][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.106941][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.117812][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.126978][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.136673][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.147529][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.158052][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.170933][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.180415][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.199904][ T4318] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 84.230639][ T4318] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.252158][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.261541][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.271135][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.280471][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.288977][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.521900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.529529][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.554731][ T4318] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.599807][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.621006][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.662250][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.681660][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.698146][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.716882][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.728713][ T4318] device veth0_vlan entered promiscuous mode [ 84.754130][ T4318] device veth1_vlan entered promiscuous mode [ 84.806294][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.822069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.840976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.860905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.882901][ T4318] device veth0_macvtap entered promiscuous mode [ 84.913143][ T4318] device veth1_macvtap entered promiscuous mode [ 84.944077][ T4318] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.960327][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.972060][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.992248][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.003186][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.016865][ T4318] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.032372][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.043888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.058932][ T4318] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.068130][ T4318] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.078012][ T4318] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.087084][ T4318] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.298000][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.313277][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.332937][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.370678][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.378802][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.397145][ T4201] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.614343][ T4434] [ 85.616770][ T4434] ====================================================== [ 85.623812][ T4434] WARNING: possible circular locking dependency detected [ 85.631074][ T4434] syzkaller #0 Not tainted [ 85.635599][ T4434] ------------------------------------------------------ [ 85.642725][ T4434] syz.0.17/4434 is trying to acquire lock: [ 85.648549][ T4434] ffff888023b94c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 85.659658][ T4434] [ 85.659658][ T4434] but task is already holding lock: [ 85.667045][ T4434] ffffffff8d4c0768 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 85.676784][ T4434] [ 85.676784][ T4434] which lock already depends on the new lock. [ 85.676784][ T4434] [ 85.687563][ T4434] [ 85.687563][ T4434] the existing dependency chain (in reverse order) is: [ 85.696614][ T4434] [ 85.696614][ T4434] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.704635][ T4434] __mutex_lock_common+0x1eb/0x2390 [ 85.710396][ T4434] mutex_lock_nested+0x17/0x20 [ 85.715712][ T4434] rfkill_register+0x33/0x8a0 [ 85.720952][ T4434] hci_register_dev+0x452/0x970 [ 85.726350][ T4434] vhci_create_device+0x32c/0x5c0 [ 85.731929][ T4434] vhci_write+0x391/0x450 [ 85.736807][ T4434] vfs_write+0x712/0xd00 [ 85.741599][ T4434] ksys_write+0x14d/0x250 [ 85.746481][ T4434] do_syscall_64+0x4c/0xa0 [ 85.751451][ T4434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.757988][ T4434] [ 85.757988][ T4434] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.765839][ T4434] __mutex_lock_common+0x1eb/0x2390 [ 85.771765][ T4434] mutex_lock_nested+0x17/0x20 [ 85.777134][ T4434] vhci_send_frame+0x88/0x100 [ 85.782476][ T4434] hci_send_frame+0x1a9/0x2e0 [ 85.787708][ T4434] hci_tx_work+0x9f9/0x1710 [ 85.792818][ T4434] process_one_work+0x863/0x1000 [ 85.798411][ T4434] worker_thread+0xaa8/0x12a0 [ 85.803766][ T4434] kthread+0x436/0x520 [ 85.808518][ T4434] ret_from_fork+0x1f/0x30 [ 85.813577][ T4434] [ 85.813577][ T4434] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.823014][ T4434] __flush_work+0xdd/0x1b0 [ 85.828110][ T4434] hci_dev_do_close+0x1e7/0x1030 [ 85.833873][ T4434] hci_unregister_dev+0x2d7/0x580 [ 85.839644][ T4434] vhci_release+0x73/0xc0 [ 85.844736][ T4434] __fput+0x234/0x930 [ 85.849274][ T4434] task_work_run+0x125/0x1a0 [ 85.854423][ T4434] do_exit+0x61e/0x20a0 [ 85.859142][ T4434] do_group_exit+0x12e/0x300 [ 85.864415][ T4434] get_signal+0x6ca/0x12c0 [ 85.869424][ T4434] arch_do_signal_or_restart+0xc1/0x1300 [ 85.875733][ T4434] exit_to_user_mode_loop+0x9e/0x130 [ 85.881676][ T4434] exit_to_user_mode_prepare+0xee/0x180 [ 85.887791][ T4434] syscall_exit_to_user_mode+0x16/0x40 [ 85.893894][ T4434] do_syscall_64+0x58/0xa0 [ 85.898868][ T4434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.905391][ T4434] [ 85.905391][ T4434] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.913072][ T4434] __mutex_lock_common+0x1eb/0x2390 [ 85.918832][ T4434] mutex_lock_nested+0x17/0x20 [ 85.924158][ T4434] bg_scan_update+0x44/0x3b0 [ 85.929300][ T4434] process_one_work+0x863/0x1000 [ 85.934897][ T4434] worker_thread+0xaa8/0x12a0 [ 85.940132][ T4434] kthread+0x436/0x520 [ 85.944802][ T4434] ret_from_fork+0x1f/0x30 [ 85.950044][ T4434] [ 85.950044][ T4434] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.959981][ T4434] __lock_acquire+0x2c33/0x7c60 [ 85.965393][ T4434] lock_acquire+0x197/0x3f0 [ 85.970553][ T4434] __flush_work+0xdd/0x1b0 [ 85.975528][ T4434] __cancel_work_timer+0x3ac/0x520 [ 85.981280][ T4434] hci_request_cancel_all+0xcc/0x300 [ 85.987205][ T4434] hci_dev_do_close+0x4e/0x1030 [ 85.992704][ T4434] hci_rfkill_set_block+0x10a/0x190 [ 85.998467][ T4434] rfkill_set_block+0x1c6/0x420 [ 86.004075][ T4434] rfkill_fop_write+0x458/0x560 [ 86.009697][ T4434] vfs_write+0x300/0xd00 [ 86.014589][ T4434] ksys_write+0x14d/0x250 [ 86.019672][ T4434] do_syscall_64+0x4c/0xa0 [ 86.024726][ T4434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.031270][ T4434] [ 86.031270][ T4434] other info that might help us debug this: [ 86.031270][ T4434] [ 86.041716][ T4434] Chain exists of: [ 86.041716][ T4434] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.041716][ T4434] [ 86.057943][ T4434] Possible unsafe locking scenario: [ 86.057943][ T4434] [ 86.065417][ T4434] CPU0 CPU1 [ 86.070805][ T4434] ---- ---- [ 86.076188][ T4434] lock(rfkill_global_mutex); [ 86.081083][ T4434] lock(&data->open_mutex); [ 86.088225][ T4434] lock(rfkill_global_mutex); [ 86.095540][ T4434] lock((work_completion)(&hdev->bg_scan_update)); [ 86.102256][ T4434] [ 86.102256][ T4434] *** DEADLOCK *** [ 86.102256][ T4434] [ 86.110431][ T4434] 1 lock held by syz.0.17/4434: [ 86.115391][ T4434] #0: ffffffff8d4c0768 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.125638][ T4434] [ 86.125638][ T4434] stack backtrace: [ 86.131557][ T4434] CPU: 0 PID: 4434 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.138879][ T4434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 86.149068][ T4434] Call Trace: [ 86.152381][ T4434] [ 86.155357][ T4434] dump_stack_lvl+0x168/0x230 [ 86.160162][ T4434] ? load_image+0x3b0/0x3b0 [ 86.164698][ T4434] ? show_regs_print_info+0x20/0x20 [ 86.170025][ T4434] ? print_circular_bug+0x12b/0x1a0 [ 86.175261][ T4434] check_noncircular+0x274/0x310 [ 86.180359][ T4434] ? add_chain_block+0x940/0x940 [ 86.185329][ T4434] ? lockdep_lock+0xdc/0x1e0 [ 86.189964][ T4434] ? __lock_acquire+0x12d9/0x7c60 [ 86.195018][ T4434] ? lockdep_lock+0x1e0/0x1e0 [ 86.199728][ T4434] ? mark_lock+0x94/0x320 [ 86.204095][ T4434] __lock_acquire+0x2c33/0x7c60 [ 86.208989][ T4434] ? verify_lock_unused+0x140/0x140 [ 86.214226][ T4434] ? verify_lock_unused+0x140/0x140 [ 86.219648][ T4434] lock_acquire+0x197/0x3f0 [ 86.224276][ T4434] ? __flush_work+0xc1/0x1b0 [ 86.228904][ T4434] ? __lock_acquire+0x7c60/0x7c60 [ 86.233972][ T4434] ? read_lock_is_recursive+0x10/0x10 [ 86.239496][ T4434] ? start_flush_work+0x776/0x820 [ 86.244550][ T4434] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.250475][ T4434] ? _raw_spin_unlock+0x40/0x40 [ 86.255365][ T4434] __flush_work+0xdd/0x1b0 [ 86.259984][ T4434] ? __flush_work+0xc1/0x1b0 [ 86.264606][ T4434] ? flush_work+0x20/0x20 [ 86.268969][ T4434] ? try_to_grab_pending+0xf3/0x7e0 [ 86.274399][ T4434] ? lockdep_hardirqs_off+0x70/0x100 [ 86.280096][ T4434] ? mark_lock+0x94/0x320 [ 86.284700][ T4434] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 86.290725][ T4434] ? lock_chain_count+0x20/0x20 [ 86.295653][ T4434] ? mark_lock+0x94/0x320 [ 86.300020][ T4434] ? __cancel_work_timer+0x331/0x520 [ 86.305438][ T4434] __cancel_work_timer+0x3ac/0x520 [ 86.310581][ T4434] ? cancel_work_sync+0x20/0x20 [ 86.315670][ T4434] ? __cancel_work+0x1f4/0x2d0 [ 86.320809][ T4434] ? lockdep_hardirqs_on+0x94/0x140 [ 86.326049][ T4434] ? __cancel_work+0x26f/0x2d0 [ 86.330856][ T4434] ? cancel_work+0x20/0x20 [ 86.335430][ T4434] ? lock_chain_count+0x20/0x20 [ 86.340408][ T4434] hci_request_cancel_all+0xcc/0x300 [ 86.345735][ T4434] hci_dev_do_close+0x4e/0x1030 [ 86.350625][ T4434] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.356551][ T4434] ? _raw_spin_unlock+0x40/0x40 [ 86.361433][ T4434] hci_rfkill_set_block+0x10a/0x190 [ 86.366766][ T4434] ? rcu_lock_release+0x20/0x20 [ 86.371742][ T4434] rfkill_set_block+0x1c6/0x420 [ 86.376715][ T4434] rfkill_fop_write+0x458/0x560 [ 86.381599][ T4434] ? verify_lock_unused+0x140/0x140 [ 86.386927][ T4434] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.392266][ T4434] ? common_file_perm+0x140/0x1c0 [ 86.397337][ T4434] ? fsnotify_perm+0x5d/0x560 [ 86.402056][ T4434] ? security_file_permission+0x75/0xa0 [ 86.407640][ T4434] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.412612][ T4434] vfs_write+0x300/0xd00 [ 86.416995][ T4434] ? file_end_write+0x250/0x250 [ 86.421890][ T4434] ? __context_tracking_exit+0x4c/0x80 [ 86.427387][ T4434] ? __lock_acquire+0x7c60/0x7c60 [ 86.432459][ T4434] ? __fdget_pos+0x1e2/0x370 [ 86.437232][ T4434] ksys_write+0x14d/0x250 [ 86.441687][ T4434] ? __ia32_sys_read+0x80/0x80 [ 86.446484][ T4434] ? lockdep_hardirqs_on+0x94/0x140 [ 86.451878][ T4434] do_syscall_64+0x4c/0xa0 [ 86.456336][ T4434] ? clear_bhb_loop+0x30/0x80 [ 86.461307][ T4434] ? clear_bhb_loop+0x30/0x80 [ 86.466012][ T4434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.471951][ T4434] RIP: 0033:0x7f49eeed3ec9 [ 86.476451][ T4434] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 86.496541][ T4434] RSP: 002b:00007fffd9dce438 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.504984][ T4434] RAX: ffffffffffffffda RBX: 00007f49ef12afa0 RCX: 00007f49eeed3ec9 [ 86.513081][ T4434] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 86.521173][ T4434] RBP: 00007f49eef56f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.529189][ T4434] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.537280][ T4434] R13: 00007f49ef12afa0 R14: 00007f49ef12afa0 R15: 0000000000000003 [ 86.545288][ T4434] [ 86.587266][ T4428] Bluetooth: hci0: command 0x041b tx timeout [ 86.780610][ T7] cfg80211: failed to load regulatory.db