Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. 2026/07/08 07:05:10 parsed 1 programs 2026/07/08 07:05:10 serving rpc on tcp://34245 [ 68.137184][ T4200] cgroup: Unknown subsys name 'net' [ 68.268807][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.615394][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.085644][ T1425] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.092636][ T1425] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.577907][ T4258] chnl_net:caif_netlink_parms(): no params data found [ 72.647818][ T4258] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.657922][ T4258] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.668836][ T4258] device bridge_slave_0 entered promiscuous mode [ 72.687871][ T4258] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.695263][ T4258] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.704795][ T4258] device bridge_slave_1 entered promiscuous mode [ 72.738717][ T4258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.750868][ T4258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.785865][ T4258] team0: Port device team_slave_0 added [ 72.793553][ T4258] team0: Port device team_slave_1 added [ 72.810453][ T4258] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.817442][ T4258] 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. [ 72.843477][ T4258] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.856112][ T4258] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.863375][ T4258] 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. [ 72.890123][ T4258] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.921603][ T4258] device hsr_slave_0 entered promiscuous mode [ 72.929376][ T4258] device hsr_slave_1 entered promiscuous mode [ 73.025771][ T4258] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.055865][ T4258] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.067882][ T4258] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.077049][ T4258] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.149120][ T4258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.184662][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.194439][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.205192][ T4258] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.239839][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.249390][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.258650][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.265976][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.303171][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.311129][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.321205][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.330587][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.337765][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.346962][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.359415][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.395041][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.404822][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.416922][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.451137][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.460976][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.474158][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.485717][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.514356][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.523038][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.534316][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.653816][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.661294][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.675351][ T4258] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.707677][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.733394][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.757256][ T4258] device veth0_vlan entered promiscuous mode [ 73.765284][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.774692][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.788842][ T4258] device veth1_vlan entered promiscuous mode [ 73.796344][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.804501][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.815161][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.835894][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.844028][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.852770][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.863255][ T4258] device veth0_macvtap entered promiscuous mode [ 73.873609][ T4258] device veth1_macvtap entered promiscuous mode [ 73.897193][ T4258] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.905752][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.916018][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.925182][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.933920][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.945941][ T4258] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.953677][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.963028][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.973852][ T4258] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.983851][ T4258] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.994120][ T4258] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.003125][ T4258] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.201696][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.209904][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.223767][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.246099][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.254885][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.265532][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/08 07:05:19 executed programs: 0 [ 75.235218][ T151] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.316865][ T4309] chnl_net:caif_netlink_parms(): no params data found [ 75.364980][ T4309] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.375063][ T4309] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.385184][ T4309] device bridge_slave_0 entered promiscuous mode [ 75.394648][ T4309] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.402882][ T4309] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.411941][ T4309] device bridge_slave_1 entered promiscuous mode [ 75.439893][ T4309] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.456690][ T4309] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.484108][ T4309] team0: Port device team_slave_0 added [ 75.496764][ T4309] team0: Port device team_slave_1 added [ 75.518492][ T4309] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.526761][ T4309] 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. [ 75.557243][ T4309] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.572577][ T4309] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.579926][ T4309] 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. [ 75.606862][ T4309] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.640930][ T4309] device hsr_slave_0 entered promiscuous mode [ 75.648472][ T4309] device hsr_slave_1 entered promiscuous mode [ 75.655795][ T4309] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.664190][ T4309] Cannot create hsr debugfs directory [ 77.252728][ T4282] Bluetooth: hci0: command 0x0409 tx timeout [ 77.950060][ T151] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.307301][ T151] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.323661][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 79.351125][ T151] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.287512][ T4309] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.315305][ T4309] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.325332][ T4309] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.336117][ T4309] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.437290][ T4309] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.450882][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.459590][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.474112][ T4309] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.492612][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.510552][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.520261][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.527696][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.538581][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.561413][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.572482][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.581605][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.590495][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.627749][ T151] device hsr_slave_0 left promiscuous mode [ 80.636601][ T151] device hsr_slave_1 left promiscuous mode [ 80.644146][ T151] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.653860][ T151] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.664603][ T151] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.673284][ T151] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.681577][ T151] device bridge_slave_1 left promiscuous mode [ 80.688524][ T151] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.705725][ T151] device bridge_slave_0 left promiscuous mode [ 80.715629][ T151] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.740241][ T151] device veth1_macvtap left promiscuous mode [ 80.747785][ T151] device veth0_macvtap left promiscuous mode [ 80.756138][ T151] device veth1_vlan left promiscuous mode [ 80.763993][ T151] device veth0_vlan left promiscuous mode [ 80.960496][ T151] team0 (unregistering): Port device team_slave_1 removed [ 80.977760][ T151] team0 (unregistering): Port device team_slave_0 removed [ 80.996112][ T151] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.010126][ T151] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.066377][ T151] bond0 (unregistering): Released all slaves [ 81.112243][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.122854][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.135052][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.150882][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.164479][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.181094][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.204306][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.216381][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.225912][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.245935][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.255842][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.266853][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.399694][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.409454][ T4265] Bluetooth: hci0: command 0x040f tx timeout [ 81.417898][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.432565][ T4309] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.463770][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.480486][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.507418][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.519635][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.532536][ T4309] device veth0_vlan entered promiscuous mode [ 81.544288][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.553663][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.563627][ T4309] device veth1_vlan entered promiscuous mode [ 81.604254][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.615914][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.625667][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.639113][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.651534][ T4309] device veth0_macvtap entered promiscuous mode [ 81.703163][ T4309] device veth1_macvtap entered promiscuous mode [ 81.758009][ T4309] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.772989][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.782989][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.812517][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.832583][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.855732][ T4309] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.873452][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.902787][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.925881][ T4309] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.952040][ T4309] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.971081][ T4309] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.991802][ T4309] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.113456][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.121454][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.151091][ T432] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.166044][ T432] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.174824][ T432] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.183402][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.342663][ T4354] [ 82.345616][ T4354] ====================================================== [ 82.353215][ T4354] WARNING: possible circular locking dependency detected [ 82.361804][ T4354] syzkaller #0 Not tainted [ 82.366354][ T4354] ------------------------------------------------------ [ 82.375085][ T4354] syz.0.17/4354 is trying to acquire lock: [ 82.381799][ T4354] ffff88802b399028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.393548][ T4354] [ 82.393548][ T4354] but task is already holding lock: [ 82.403077][ T4354] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.413725][ T4354] [ 82.413725][ T4354] which lock already depends on the new lock. [ 82.413725][ T4354] [ 82.425038][ T4354] [ 82.425038][ T4354] the existing dependency chain (in reverse order) is: [ 82.434246][ T4354] [ 82.434246][ T4354] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.442547][ T4354] __mutex_lock_common+0x1e5/0x2400 [ 82.448455][ T4354] mutex_lock_nested+0x17/0x20 [ 82.453791][ T4354] rfkill_register+0x2f/0x970 [ 82.459610][ T4354] hci_register_dev+0x459/0x980 [ 82.465186][ T4354] vhci_create_device+0x32e/0x5c0 [ 82.471855][ T4354] vhci_write+0x389/0x440 [ 82.476966][ T4354] vfs_write+0x748/0xd70 [ 82.481984][ T4354] ksys_write+0x153/0x260 [ 82.487058][ T4354] do_syscall_64+0x4c/0xa0 [ 82.492406][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.498911][ T4354] [ 82.498911][ T4354] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.507078][ T4354] __mutex_lock_common+0x1e5/0x2400 [ 82.513549][ T4354] mutex_lock_nested+0x17/0x20 [ 82.519049][ T4354] vhci_send_frame+0x88/0x100 [ 82.524503][ T4354] hci_send_frame+0x1a9/0x2e0 [ 82.529765][ T4354] hci_tx_work+0x9b5/0x16d0 [ 82.535086][ T4354] process_one_work+0x867/0xff0 [ 82.540515][ T4354] worker_thread+0xad7/0x12a0 [ 82.546207][ T4354] kthread+0x42e/0x520 [ 82.551037][ T4354] ret_from_fork+0x1f/0x30 [ 82.556058][ T4354] [ 82.556058][ T4354] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.566135][ T4354] __flush_work+0x116/0x210 [ 82.571249][ T4354] hci_dev_do_close+0x201/0x1020 [ 82.576973][ T4354] hci_unregister_dev+0x2eb/0x590 [ 82.582574][ T4354] vhci_release+0x73/0xc0 [ 82.587490][ T4354] __fput+0x212/0x8c0 [ 82.592055][ T4354] task_work_run+0x125/0x1a0 [ 82.597335][ T4354] do_exit+0x635/0x2110 [ 82.602074][ T4354] do_group_exit+0x12c/0x2f0 [ 82.607273][ T4354] get_signal+0x7eb/0x12e0 [ 82.612342][ T4354] arch_do_signal_or_restart+0xe6/0x12a0 [ 82.618580][ T4354] exit_to_user_mode_loop+0x9e/0x130 [ 82.624613][ T4354] exit_to_user_mode_prepare+0xee/0x180 [ 82.630743][ T4354] syscall_exit_to_user_mode+0x16/0x40 [ 82.636938][ T4354] do_syscall_64+0x58/0xa0 [ 82.641912][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.648355][ T4354] [ 82.648355][ T4354] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.656040][ T4354] __mutex_lock_common+0x1e5/0x2400 [ 82.661791][ T4354] mutex_lock_nested+0x17/0x20 [ 82.667097][ T4354] bg_scan_update+0x44/0x3b0 [ 82.672345][ T4354] process_one_work+0x867/0xff0 [ 82.677736][ T4354] worker_thread+0xad7/0x12a0 [ 82.683103][ T4354] kthread+0x42e/0x520 [ 82.687726][ T4354] ret_from_fork+0x1f/0x30 [ 82.692690][ T4354] [ 82.692690][ T4354] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.702636][ T4354] __lock_acquire+0x2c66/0x7b50 [ 82.708044][ T4354] lock_acquire+0x19e/0x400 [ 82.713100][ T4354] __flush_work+0x116/0x210 [ 82.718154][ T4354] __cancel_work_timer+0x3f4/0x560 [ 82.723819][ T4354] hci_request_cancel_all+0xcc/0x300 [ 82.729664][ T4354] hci_dev_do_close+0x4e/0x1020 [ 82.735059][ T4354] hci_rfkill_set_block+0x101/0x180 [ 82.740905][ T4354] rfkill_set_block+0x1c1/0x3c0 [ 82.746318][ T4354] rfkill_fop_write+0x453/0x560 [ 82.751732][ T4354] vfs_write+0x304/0xd70 [ 82.756661][ T4354] ksys_write+0x153/0x260 [ 82.761756][ T4354] do_syscall_64+0x4c/0xa0 [ 82.766739][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.773834][ T4354] [ 82.773834][ T4354] other info that might help us debug this: [ 82.773834][ T4354] [ 82.784102][ T4354] Chain exists of: [ 82.784102][ T4354] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.784102][ T4354] [ 82.799906][ T4354] Possible unsafe locking scenario: [ 82.799906][ T4354] [ 82.807393][ T4354] CPU0 CPU1 [ 82.812858][ T4354] ---- ---- [ 82.818255][ T4354] lock(rfkill_global_mutex); [ 82.823072][ T4354] lock(&data->open_mutex); [ 82.830255][ T4354] lock(rfkill_global_mutex); [ 82.837583][ T4354] lock((work_completion)(&hdev->bg_scan_update)); [ 82.844230][ T4354] [ 82.844230][ T4354] *** DEADLOCK *** [ 82.844230][ T4354] [ 82.852526][ T4354] 1 lock held by syz.0.17/4354: [ 82.857415][ T4354] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.867715][ T4354] [ 82.867715][ T4354] stack backtrace: [ 82.873937][ T4354] CPU: 1 PID: 4354 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.881169][ T4354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 82.891264][ T4354] Call Trace: [ 82.894572][ T4354] [ 82.897556][ T4354] dump_stack_lvl+0x188/0x250 [ 82.902352][ T4354] ? load_image+0x410/0x410 [ 82.906919][ T4354] ? show_regs_print_info+0x20/0x20 [ 82.912173][ T4354] ? print_circular_bug+0x12b/0x1a0 [ 82.917423][ T4354] check_noncircular+0x296/0x330 [ 82.922444][ T4354] ? look_up_lock_class+0x71/0x110 [ 82.927666][ T4354] ? add_chain_block+0x9b0/0x9b0 [ 82.932650][ T4354] ? lockdep_lock+0xf1/0x1f0 [ 82.937303][ T4354] ? __lock_acquire+0x1305/0x7b50 [ 82.942414][ T4354] ? mark_lock+0x94/0x320 [ 82.946787][ T4354] ? _find_first_zero_bit+0xd1/0xf0 [ 82.952031][ T4354] __lock_acquire+0x2c66/0x7b50 [ 82.957275][ T4354] ? verify_lock_unused+0x140/0x140 [ 82.962534][ T4354] ? verify_lock_unused+0x140/0x140 [ 82.967779][ T4354] lock_acquire+0x19e/0x400 [ 82.973342][ T4354] ? __flush_work+0xfa/0x210 [ 82.977985][ T4354] ? __lock_acquire+0x7b50/0x7b50 [ 82.983059][ T4354] ? read_lock_is_recursive+0x10/0x10 [ 82.988517][ T4354] ? start_flush_work+0x784/0x830 [ 82.993624][ T4354] __flush_work+0x116/0x210 [ 82.998163][ T4354] ? __flush_work+0xfa/0x210 [ 83.002913][ T4354] ? flush_work+0x20/0x20 [ 83.007305][ T4354] ? try_to_grab_pending+0xfb/0x820 [ 83.012629][ T4354] ? mark_lock+0x94/0x320 [ 83.017012][ T4354] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 83.023437][ T4354] ? lock_chain_count+0x20/0x20 [ 83.028626][ T4354] ? mark_lock+0x94/0x320 [ 83.032995][ T4354] ? __cancel_work_timer+0x36a/0x560 [ 83.038314][ T4354] __cancel_work_timer+0x3f4/0x560 [ 83.043462][ T4354] ? cancel_work_sync+0x20/0x20 [ 83.049208][ T4354] ? __cancel_work+0x1f9/0x2e0 [ 83.054017][ T4354] ? lockdep_hardirqs_on+0x94/0x140 [ 83.059474][ T4354] ? __cancel_work+0x27b/0x2e0 [ 83.064387][ T4354] ? cancel_work+0x20/0x20 [ 83.068833][ T4354] hci_request_cancel_all+0xcc/0x300 [ 83.074517][ T4354] hci_dev_do_close+0x4e/0x1020 [ 83.079716][ T4354] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.086204][ T4354] ? _raw_spin_unlock+0x40/0x40 [ 83.091908][ T4354] hci_rfkill_set_block+0x101/0x180 [ 83.097355][ T4354] ? rcu_lock_release+0x20/0x20 [ 83.102718][ T4354] rfkill_set_block+0x1c1/0x3c0 [ 83.107615][ T4354] rfkill_fop_write+0x453/0x560 [ 83.112615][ T4354] ? rfkill_fop_read+0x560/0x560 [ 83.117795][ T4354] ? common_file_perm+0xf0/0x1c0 [ 83.122796][ T4354] ? fsnotify_perm+0x5d/0x560 [ 83.127505][ T4354] ? security_file_permission+0x75/0xa0 [ 83.134760][ T4354] ? rfkill_fop_read+0x560/0x560 [ 83.139781][ T4354] vfs_write+0x304/0xd70 [ 83.144244][ T4354] ? file_end_write+0x250/0x250 [ 83.149160][ T4354] ? __context_tracking_exit+0x4c/0x80 [ 83.155223][ T4354] ? __fdget_pos+0x1e2/0x370 [ 83.160096][ T4354] ksys_write+0x153/0x260 [ 83.164472][ T4354] ? __ia32_sys_read+0x80/0x80 [ 83.169405][ T4354] ? lockdep_hardirqs_on+0x94/0x140 [ 83.174655][ T4354] do_syscall_64+0x4c/0xa0 [ 83.179099][ T4354] ? clear_bhb_loop+0x30/0x80 [ 83.183807][ T4354] ? clear_bhb_loop+0x30/0x80 [ 83.189861][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.195817][ T4354] RIP: 0033:0x7f407b1e0e59 [ 83.200470][ T4354] 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 [ 83.220127][ T4354] RSP: 002b:00007ffe98a1f0e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.231069][ T4354] RAX: ffffffffffffffda RBX: 00007f407b468fa0 RCX: 00007f407b1e0e59 [ 83.239655][ T4354] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 83.247760][ T4354] RBP: 00007f407b276e6f R08: 0000000000000000 R09: 0000000000000000 [ 83.256024][ T4354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.264270][ T4354] R13: 00007f407b468fac R14: 00007f407b468fa0 R15: 00007f407b468fa0 [ 83.275498][ T4354]