Warning: Permanently added '10.128.0.158' (ED25519) to the list of known hosts. 2026/07/02 11:23:55 parsed 1 programs 2026/07/02 11:23:55 serving rpc on tcp://46537 [ 65.697282][ T4200] cgroup: Unknown subsys name 'net' [ 65.844483][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 67.326256][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 69.173947][ T4222] chnl_net:caif_netlink_parms(): no params data found [ 69.216916][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.224590][ T4222] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.232554][ T4222] device bridge_slave_0 entered promiscuous mode [ 69.242339][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.249538][ T4222] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.257191][ T4222] device bridge_slave_1 entered promiscuous mode [ 69.280096][ T4222] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.291066][ T4222] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.311014][ T4222] team0: Port device team_slave_0 added [ 69.318460][ T4222] team0: Port device team_slave_1 added [ 69.337269][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.344517][ T4222] 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. [ 69.370527][ T4222] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.383664][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.391050][ T4222] 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. [ 69.417156][ T4222] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.456824][ T4222] device hsr_slave_0 entered promiscuous mode [ 69.463834][ T4222] device hsr_slave_1 entered promiscuous mode [ 69.602426][ T4222] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.614729][ T4222] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.626687][ T4222] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.637304][ T4222] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.673138][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.680403][ T4222] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.688335][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.695535][ T4222] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.768500][ T4222] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.787713][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.800206][ T1232] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.810198][ T1232] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.818522][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.839307][ T4222] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.852779][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.861606][ T1232] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.868863][ T1232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.887424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.896760][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.904064][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.927618][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.952679][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.963168][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.971999][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.981220][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.992338][ T4222] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.146392][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.155055][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.171117][ T4222] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.194122][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.205402][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.227818][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.240089][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.251420][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.259604][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.274087][ T4222] device veth0_vlan entered promiscuous mode [ 70.288626][ T4222] device veth1_vlan entered promiscuous mode [ 70.317116][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.327720][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.337747][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 70.347081][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.360782][ T4222] device veth0_macvtap entered promiscuous mode [ 70.373362][ T4222] device veth1_macvtap entered promiscuous mode [ 70.393863][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.404455][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.414675][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.424270][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.433457][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.446087][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.458349][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.468671][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.480722][ T4222] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.490440][ T4222] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.499628][ T4222] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.508426][ T4222] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.621346][ T4222] syz-executor (4222) used greatest stack depth: 20176 bytes left [ 70.754907][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.098590][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.106758][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.117823][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.135362][ T1232] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.143691][ T1232] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.154378][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.493514][ T1433] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.500503][ T1433] ieee802154 phy1 wpan1: encryption failed: -22 2026/07/02 11:24:03 executed programs: 0 [ 72.423284][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 72.462319][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.469567][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.477855][ T4290] device bridge_slave_0 entered promiscuous mode [ 72.486306][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.493692][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.501632][ T4290] device bridge_slave_1 entered promiscuous mode [ 72.521588][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.534653][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.556190][ T4290] team0: Port device team_slave_0 added [ 72.564360][ T4290] team0: Port device team_slave_1 added [ 72.580865][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.588031][ T4290] 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. [ 72.614340][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.626756][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.633852][ T4290] 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. [ 72.659943][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.688445][ T4290] device hsr_slave_0 entered promiscuous mode [ 72.695627][ T4290] device hsr_slave_1 entered promiscuous mode [ 72.702615][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.710587][ T4290] Cannot create hsr debugfs directory [ 72.955248][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.369737][ T4228] Bluetooth: hci0: command 0x0409 tx timeout [ 75.505225][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.566583][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.437932][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.447651][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.454694][ T4232] Bluetooth: hci0: command 0x041b tx timeout [ 76.470992][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.480701][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.493788][ T154] device hsr_slave_0 left promiscuous mode [ 76.500627][ T154] device hsr_slave_1 left promiscuous mode [ 76.507824][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.515601][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.525012][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.533501][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.541337][ T154] device bridge_slave_1 left promiscuous mode [ 76.548204][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.562584][ T154] device bridge_slave_0 left promiscuous mode [ 76.569323][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.587401][ T154] device veth1_macvtap left promiscuous mode [ 76.593674][ T154] device veth0_macvtap left promiscuous mode [ 76.600012][ T154] device veth1_vlan left promiscuous mode [ 76.606238][ T154] device veth0_vlan left promiscuous mode [ 76.747117][ T154] team0 (unregistering): Port device team_slave_1 removed [ 76.761345][ T154] team0 (unregistering): Port device team_slave_0 removed [ 76.776679][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.791546][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.846215][ T154] bond0 (unregistering): Released all slaves [ 76.943973][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.958217][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.967028][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.978775][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.993478][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.009469][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.018363][ T4331] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.025545][ T4331] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.033875][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.042643][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.051234][ T4331] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.058291][ T4331] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.066155][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.085274][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.094433][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.108644][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.118049][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.127456][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.138166][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.147220][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.163815][ T4290] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.176389][ T4290] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.189043][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.197790][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.206397][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.214902][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.223760][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.328688][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.337088][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.354366][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.376470][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.388001][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.408663][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.418362][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.427897][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.437737][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.451377][ T4290] device veth0_vlan entered promiscuous mode [ 77.465016][ T4290] device veth1_vlan entered promiscuous mode [ 77.489861][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.498013][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.516258][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.525681][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.537804][ T4290] device veth0_macvtap entered promiscuous mode [ 77.548565][ T4290] device veth1_macvtap entered promiscuous mode [ 77.567346][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.578499][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.586338][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.596729][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.606401][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.616780][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.626349][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.636753][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.648444][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.657595][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.666660][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.676065][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.740380][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.748281][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.766533][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.788384][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.797202][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.805928][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.009187][ T4337] [ 78.011581][ T4337] ====================================================== [ 78.018609][ T4337] WARNING: possible circular locking dependency detected [ 78.025642][ T4337] syzkaller #0 Not tainted [ 78.030070][ T4337] ------------------------------------------------------ [ 78.037092][ T4337] syz.0.17/4337 is trying to acquire lock: [ 78.042906][ T4337] ffff88805c865028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 78.053982][ T4337] [ 78.053982][ T4337] but task is already holding lock: [ 78.061361][ T4337] ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 78.071051][ T4337] [ 78.071051][ T4337] which lock already depends on the new lock. [ 78.071051][ T4337] [ 78.081548][ T4337] [ 78.081548][ T4337] the existing dependency chain (in reverse order) is: [ 78.090574][ T4337] [ 78.090574][ T4337] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 78.098583][ T4337] __mutex_lock_common+0x1e5/0x2400 [ 78.104328][ T4337] mutex_lock_nested+0x17/0x20 [ 78.109623][ T4337] rfkill_register+0x2f/0x970 [ 78.114819][ T4337] hci_register_dev+0x459/0x980 [ 78.120187][ T4337] vhci_create_device+0x32e/0x5c0 [ 78.125730][ T4337] vhci_write+0x389/0x440 [ 78.130573][ T4337] vfs_write+0x748/0xd70 [ 78.135331][ T4337] ksys_write+0x153/0x260 [ 78.140175][ T4337] do_syscall_64+0x4c/0xa0 [ 78.145123][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.151533][ T4337] [ 78.151533][ T4337] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 78.159347][ T4337] __mutex_lock_common+0x1e5/0x2400 [ 78.165062][ T4337] mutex_lock_nested+0x17/0x20 [ 78.170346][ T4337] vhci_send_frame+0x88/0x100 [ 78.175540][ T4337] hci_send_frame+0x1a9/0x2e0 [ 78.180734][ T4337] hci_tx_work+0x9b5/0x16d0 [ 78.185757][ T4337] process_one_work+0x867/0xff0 [ 78.191138][ T4337] worker_thread+0xad7/0x12a0 [ 78.196328][ T4337] kthread+0x42e/0x520 [ 78.200909][ T4337] ret_from_fork+0x1f/0x30 [ 78.205843][ T4337] [ 78.205843][ T4337] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 78.215050][ T4337] __flush_work+0x116/0x210 [ 78.220068][ T4337] hci_dev_do_close+0x201/0x1020 [ 78.225521][ T4337] hci_unregister_dev+0x2eb/0x590 [ 78.231065][ T4337] vhci_release+0x73/0xc0 [ 78.235913][ T4337] __fput+0x212/0x8c0 [ 78.240407][ T4337] task_work_run+0x125/0x1a0 [ 78.245514][ T4337] do_exit+0x635/0x2110 [ 78.250185][ T4337] do_group_exit+0x12c/0x2f0 [ 78.255289][ T4337] get_signal+0x7eb/0x12e0 [ 78.260216][ T4337] arch_do_signal_or_restart+0xe6/0x12a0 [ 78.266365][ T4337] exit_to_user_mode_loop+0x9e/0x130 [ 78.272166][ T4337] exit_to_user_mode_prepare+0xee/0x180 [ 78.278229][ T4337] syscall_exit_to_user_mode+0x16/0x40 [ 78.284205][ T4337] do_syscall_64+0x58/0xa0 [ 78.289138][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.295812][ T4337] [ 78.295812][ T4337] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 78.303447][ T4337] __mutex_lock_common+0x1e5/0x2400 [ 78.309166][ T4337] mutex_lock_nested+0x17/0x20 [ 78.314444][ T4337] bg_scan_update+0x44/0x3b0 [ 78.319552][ T4337] process_one_work+0x867/0xff0 [ 78.324917][ T4337] worker_thread+0xad7/0x12a0 [ 78.330105][ T4337] kthread+0x42e/0x520 [ 78.334687][ T4337] ret_from_fork+0x1f/0x30 [ 78.339619][ T4337] [ 78.339619][ T4337] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 78.349427][ T4337] __lock_acquire+0x2c66/0x7b50 [ 78.354797][ T4337] lock_acquire+0x19e/0x400 [ 78.359816][ T4337] __flush_work+0x116/0x210 [ 78.364836][ T4337] __cancel_work_timer+0x3f4/0x560 [ 78.370461][ T4337] hci_request_cancel_all+0xcc/0x300 [ 78.376263][ T4337] hci_dev_do_close+0x4e/0x1020 [ 78.381629][ T4337] hci_rfkill_set_block+0x101/0x180 [ 78.387356][ T4337] rfkill_set_block+0x1c1/0x3c0 [ 78.392726][ T4337] rfkill_fop_write+0x453/0x560 [ 78.398090][ T4337] vfs_write+0x304/0xd70 [ 78.402846][ T4337] ksys_write+0x153/0x260 [ 78.407692][ T4337] do_syscall_64+0x4c/0xa0 [ 78.412622][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.419035][ T4337] [ 78.419035][ T4337] other info that might help us debug this: [ 78.419035][ T4337] [ 78.429277][ T4337] Chain exists of: [ 78.429277][ T4337] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 78.429277][ T4337] [ 78.444996][ T4337] Possible unsafe locking scenario: [ 78.444996][ T4337] [ 78.452443][ T4337] CPU0 CPU1 [ 78.457800][ T4337] ---- ---- [ 78.463155][ T4337] lock(rfkill_global_mutex); [ 78.467913][ T4337] lock(&data->open_mutex); [ 78.475017][ T4337] lock(rfkill_global_mutex); [ 78.482299][ T4337] lock((work_completion)(&hdev->bg_scan_update)); [ 78.488885][ T4337] [ 78.488885][ T4337] *** DEADLOCK *** [ 78.488885][ T4337] [ 78.497110][ T4337] 1 lock held by syz.0.17/4337: [ 78.501952][ T4337] #0: ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 78.512050][ T4337] [ 78.512050][ T4337] stack backtrace: [ 78.517938][ T4337] CPU: 1 PID: 4337 Comm: syz.0.17 Not tainted syzkaller #0 [ 78.525231][ T4337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 78.535458][ T4337] Call Trace: [ 78.538735][ T4337] [ 78.541666][ T4337] dump_stack_lvl+0x188/0x250 [ 78.546346][ T4337] ? load_image+0x410/0x410 [ 78.550869][ T4337] ? show_regs_print_info+0x20/0x20 [ 78.556070][ T4337] ? print_circular_bug+0x12b/0x1a0 [ 78.561464][ T4337] check_noncircular+0x296/0x330 [ 78.566406][ T4337] ? look_up_lock_class+0x71/0x110 [ 78.571519][ T4337] ? add_chain_block+0x9b0/0x9b0 [ 78.576579][ T4337] ? lockdep_lock+0xf1/0x1f0 [ 78.581187][ T4337] ? __lock_acquire+0x1305/0x7b50 [ 78.586299][ T4337] ? mark_lock+0x94/0x320 [ 78.590633][ T4337] ? _find_first_zero_bit+0xd1/0xf0 [ 78.595925][ T4337] __lock_acquire+0x2c66/0x7b50 [ 78.600778][ T4337] ? verify_lock_unused+0x140/0x140 [ 78.606074][ T4337] ? verify_lock_unused+0x140/0x140 [ 78.611280][ T4337] lock_acquire+0x19e/0x400 [ 78.615803][ T4337] ? __flush_work+0xfa/0x210 [ 78.620394][ T4337] ? __lock_acquire+0x7b50/0x7b50 [ 78.625417][ T4337] ? read_lock_is_recursive+0x10/0x10 [ 78.630791][ T4337] ? start_flush_work+0x784/0x830 [ 78.635817][ T4337] __flush_work+0x116/0x210 [ 78.640336][ T4337] ? __flush_work+0xfa/0x210 [ 78.644922][ T4337] ? flush_work+0x20/0x20 [ 78.649253][ T4337] ? try_to_grab_pending+0xfb/0x820 [ 78.654460][ T4337] ? mark_lock+0x94/0x320 [ 78.658813][ T4337] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 78.664845][ T4337] ? lock_chain_count+0x20/0x20 [ 78.669784][ T4337] ? mark_lock+0x94/0x320 [ 78.674119][ T4337] ? __cancel_work_timer+0x36a/0x560 [ 78.679406][ T4337] __cancel_work_timer+0x3f4/0x560 [ 78.684516][ T4337] ? cancel_work_sync+0x20/0x20 [ 78.689366][ T4337] ? __cancel_work+0x1f9/0x2e0 [ 78.694124][ T4337] ? lockdep_hardirqs_on+0x94/0x140 [ 78.699419][ T4337] ? __cancel_work+0x27b/0x2e0 [ 78.704202][ T4337] ? cancel_work+0x20/0x20 [ 78.708623][ T4337] hci_request_cancel_all+0xcc/0x300 [ 78.713910][ T4337] hci_dev_do_close+0x4e/0x1020 [ 78.718782][ T4337] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 78.724673][ T4337] ? _raw_spin_unlock+0x40/0x40 [ 78.729525][ T4337] hci_rfkill_set_block+0x101/0x180 [ 78.734724][ T4337] ? rcu_lock_release+0x20/0x20 [ 78.739576][ T4337] rfkill_set_block+0x1c1/0x3c0 [ 78.744430][ T4337] rfkill_fop_write+0x453/0x560 [ 78.749277][ T4337] ? rfkill_fop_read+0x560/0x560 [ 78.754297][ T4337] ? common_file_perm+0x120/0x1c0 [ 78.759322][ T4337] ? fsnotify_perm+0x5d/0x560 [ 78.763997][ T4337] ? security_file_permission+0x75/0xa0 [ 78.769541][ T4337] ? rfkill_fop_read+0x560/0x560 [ 78.774473][ T4337] vfs_write+0x304/0xd70 [ 78.778716][ T4337] ? file_end_write+0x250/0x250 [ 78.783567][ T4337] ? __context_tracking_exit+0x4c/0x80 [ 78.789025][ T4337] ? __fdget_pos+0x1e2/0x370 [ 78.793612][ T4337] ksys_write+0x153/0x260 [ 78.797937][ T4337] ? __ia32_sys_read+0x80/0x80 [ 78.802699][ T4337] ? lockdep_hardirqs_on+0x94/0x140 [ 78.807894][ T4337] do_syscall_64+0x4c/0xa0 [ 78.812322][ T4337] ? clear_bhb_loop+0x30/0x80 [ 78.817022][ T4337] ? clear_bhb_loop+0x30/0x80 [ 78.821693][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.827672][ T4337] RIP: 0033:0x7f14a3193e59 [ 78.832459][ T4337] 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 [ 78.852066][ T4337] RSP: 002b:00007ffeaba027d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.860479][ T4337] RAX: ffffffffffffffda RBX: 00007f14a341bfa0 RCX: 00007f14a3193e59 [ 78.868450][ T4337] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 78.876422][ T4337] RBP: 00007f14a3229e6f R08: 0000000000000000 R09: 0000000000000000 [ 78.884389][ T4337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.892356][ T4337] R13: 00007f14a341bfac R14: 00007f14a341bfa0 R15: 00007f14a341bfa0 [ 78.900328][ T4337] [ 78.922813][ T1108] Bluetooth: hci0: command 0x040f tx timeout