Warning: Permanently added '10.128.0.244' (ED25519) to the list of known hosts. 2026/01/16 05:06:56 parsed 1 programs [ 70.873745][ T4188] cgroup: Unknown subsys name 'net' [ 71.012237][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.349125][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.355689][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.557335][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.835230][ T4225] chnl_net:caif_netlink_parms(): no params data found [ 74.903266][ T4225] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.912340][ T4225] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.920880][ T4225] device bridge_slave_0 entered promiscuous mode [ 74.932017][ T4225] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.939247][ T4225] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.948803][ T4225] device bridge_slave_1 entered promiscuous mode [ 74.979577][ T4225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.992620][ T4225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.025338][ T4225] team0: Port device team_slave_0 added [ 75.039851][ T4225] team0: Port device team_slave_1 added [ 75.065821][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.072825][ T4225] 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. [ 75.101117][ T4225] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.114535][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.121618][ T4225] 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. [ 75.147718][ T4225] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.187870][ T4225] device hsr_slave_0 entered promiscuous mode [ 75.194814][ T4225] device hsr_slave_1 entered promiscuous mode [ 75.332357][ T4225] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.344789][ T4225] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.355095][ T4225] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.365310][ T4225] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.400648][ T4225] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.407954][ T4225] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.416042][ T4225] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.423166][ T4225] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.480977][ T4225] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.497063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.509581][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.518965][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.527456][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.542991][ T4225] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.556759][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.565295][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.572579][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.601280][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.611618][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.618850][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.629842][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.646409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.655789][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.664825][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.681872][ T4225] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.693987][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.702708][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.833902][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.842157][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.857770][ T4225] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.879731][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.888805][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.920716][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.930329][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.941113][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.949322][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.960816][ T4225] device veth0_vlan entered promiscuous mode [ 75.977398][ T4225] device veth1_vlan entered promiscuous mode [ 76.000626][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.009367][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.018796][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.027816][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.039399][ T4225] device veth0_macvtap entered promiscuous mode [ 76.052351][ T4225] device veth1_macvtap entered promiscuous mode [ 76.070171][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.080423][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.090224][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.100553][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.110092][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.123363][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.133409][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.144165][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.162125][ T4225] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.174147][ T4225] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.183168][ T4225] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.193651][ T4225] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.290243][ T4225] syz-executor (4225) used greatest stack depth: 20448 bytes left [ 77.407564][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.426848][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.451969][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.464902][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.474167][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.486252][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/01/16 05:07:06 executed programs: 0 [ 78.720659][ T4288] chnl_net:caif_netlink_parms(): no params data found [ 78.772838][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.780066][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.788856][ T4288] device bridge_slave_0 entered promiscuous mode [ 78.797779][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.804947][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.814597][ T4288] device bridge_slave_1 entered promiscuous mode [ 78.844591][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.857124][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.887784][ T4288] team0: Port device team_slave_0 added [ 78.896096][ T4288] team0: Port device team_slave_1 added [ 78.922810][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.930114][ T4288] 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. [ 78.956579][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.969408][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.976420][ T4288] 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. [ 79.002562][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.041192][ T4288] device hsr_slave_0 entered promiscuous mode [ 79.050609][ T4288] device hsr_slave_1 entered promiscuous mode [ 79.058437][ T4288] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.066661][ T4288] Cannot create hsr debugfs directory [ 79.099259][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.626724][ T4253] Bluetooth: hci0: command 0x0409 tx timeout [ 81.043767][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.102267][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.144634][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.081381][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.094378][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.148974][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.161444][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.268860][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.283406][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.292995][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.306661][ T4288] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.327966][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.336940][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.345403][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.352595][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.360824][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.370132][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.379814][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.387030][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.395920][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.427297][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.438251][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.450060][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.461052][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.470725][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.511298][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 82.520762][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.532293][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.541201][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.553310][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.562385][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.574876][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.705106][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.713011][ T4252] Bluetooth: hci0: command 0x041b tx timeout [ 82.714386][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.733172][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.770710][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.779953][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.822471][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.831420][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.841955][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.850089][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.861813][ T4288] device veth0_vlan entered promiscuous mode [ 82.875877][ T4288] device veth1_vlan entered promiscuous mode [ 82.915790][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.923859][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.932163][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.941412][ T3080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.953020][ T4288] device veth0_macvtap entered promiscuous mode [ 82.965938][ T4288] device veth1_macvtap entered promiscuous mode [ 82.988607][ T155] device hsr_slave_0 left promiscuous mode [ 82.995254][ T155] device hsr_slave_1 left promiscuous mode [ 83.001936][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.010525][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.018989][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.028364][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.036381][ T155] device bridge_slave_1 left promiscuous mode [ 83.043460][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.057247][ T155] device bridge_slave_0 left promiscuous mode [ 83.063524][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.082044][ T155] device veth1_macvtap left promiscuous mode [ 83.089088][ T155] device veth0_macvtap left promiscuous mode [ 83.095286][ T155] device veth1_vlan left promiscuous mode [ 83.101394][ T155] device veth0_vlan left promiscuous mode [ 83.285223][ T155] team0 (unregistering): Port device team_slave_1 removed [ 83.300109][ T155] team0 (unregistering): Port device team_slave_0 removed [ 83.314165][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.330033][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.392064][ T155] bond0 (unregistering): Released all slaves [ 83.434985][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.444002][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.452247][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.460624][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.469793][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.486118][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.496158][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.504910][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.515674][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.524415][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.538988][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.547788][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.619590][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.642668][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.670681][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.678435][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.686986][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.710091][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.834869][ T4349] [ 83.837573][ T4349] ====================================================== [ 83.844728][ T4349] WARNING: possible circular locking dependency detected [ 83.851872][ T4349] syzkaller #0 Not tainted [ 83.856320][ T4349] ------------------------------------------------------ [ 83.863366][ T4349] syz.0.17/4349 is trying to acquire lock: [ 83.869199][ T4349] ffff88802565cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 83.880308][ T4349] [ 83.880308][ T4349] but task is already holding lock: [ 83.887709][ T4349] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 83.897505][ T4349] [ 83.897505][ T4349] which lock already depends on the new lock. [ 83.897505][ T4349] [ 83.908068][ T4349] [ 83.908068][ T4349] the existing dependency chain (in reverse order) is: [ 83.917124][ T4349] [ 83.917124][ T4349] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.925167][ T4349] __mutex_lock_common+0x1eb/0x2390 [ 83.931034][ T4349] mutex_lock_nested+0x17/0x20 [ 83.936369][ T4349] rfkill_register+0x33/0x8a0 [ 83.941695][ T4349] hci_register_dev+0x452/0x970 [ 83.947112][ T4349] vhci_create_device+0x32c/0x5c0 [ 83.952703][ T4349] vhci_write+0x391/0x450 [ 83.957600][ T4349] vfs_write+0x712/0xd00 [ 83.962403][ T4349] ksys_write+0x14d/0x250 [ 83.967300][ T4349] do_syscall_64+0x4c/0xa0 [ 83.972292][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.978755][ T4349] [ 83.978755][ T4349] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.986709][ T4349] __mutex_lock_common+0x1eb/0x2390 [ 83.992562][ T4349] mutex_lock_nested+0x17/0x20 [ 83.998160][ T4349] vhci_send_frame+0x88/0x100 [ 84.003424][ T4349] hci_send_frame+0x1a9/0x2e0 [ 84.008666][ T4349] hci_tx_work+0x9f9/0x1710 [ 84.013731][ T4349] process_one_work+0x863/0x1000 [ 84.019230][ T4349] worker_thread+0xaa8/0x12a0 [ 84.024469][ T4349] kthread+0x436/0x520 [ 84.029101][ T4349] ret_from_fork+0x1f/0x30 [ 84.034087][ T4349] [ 84.034087][ T4349] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.043339][ T4349] __flush_work+0xdd/0x1b0 [ 84.048420][ T4349] hci_dev_do_close+0x1e7/0x1030 [ 84.053924][ T4349] hci_unregister_dev+0x2d7/0x580 [ 84.059520][ T4349] vhci_release+0x73/0xc0 [ 84.064415][ T4349] __fput+0x234/0x930 [ 84.068956][ T4349] task_work_run+0x125/0x1a0 [ 84.074125][ T4349] do_exit+0x61e/0x20a0 [ 84.078843][ T4349] do_group_exit+0x12e/0x300 [ 84.083997][ T4349] get_signal+0x6ca/0x12c0 [ 84.088974][ T4349] arch_do_signal_or_restart+0xc1/0x1300 [ 84.095175][ T4349] exit_to_user_mode_loop+0x9e/0x130 [ 84.101042][ T4349] exit_to_user_mode_prepare+0xee/0x180 [ 84.107161][ T4349] syscall_exit_to_user_mode+0x16/0x40 [ 84.113271][ T4349] do_syscall_64+0x58/0xa0 [ 84.118255][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.124814][ T4349] [ 84.124814][ T4349] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.132671][ T4349] __mutex_lock_common+0x1eb/0x2390 [ 84.138431][ T4349] mutex_lock_nested+0x17/0x20 [ 84.143757][ T4349] bg_scan_update+0x44/0x3b0 [ 84.148914][ T4349] process_one_work+0x863/0x1000 [ 84.154425][ T4349] worker_thread+0xaa8/0x12a0 [ 84.159659][ T4349] kthread+0x436/0x520 [ 84.164291][ T4349] ret_from_fork+0x1f/0x30 [ 84.169275][ T4349] [ 84.169275][ T4349] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.179143][ T4349] __lock_acquire+0x2c33/0x7c60 [ 84.184569][ T4349] lock_acquire+0x197/0x3f0 [ 84.189644][ T4349] __flush_work+0xdd/0x1b0 [ 84.194621][ T4349] __cancel_work_timer+0x3ac/0x520 [ 84.200298][ T4349] hci_request_cancel_all+0xcc/0x300 [ 84.206172][ T4349] hci_dev_do_close+0x4e/0x1030 [ 84.211687][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 84.217714][ T4349] rfkill_set_block+0x1c6/0x420 [ 84.223120][ T4349] rfkill_fop_write+0x458/0x560 [ 84.228663][ T4349] vfs_write+0x300/0xd00 [ 84.233551][ T4349] ksys_write+0x14d/0x250 [ 84.238522][ T4349] do_syscall_64+0x4c/0xa0 [ 84.243497][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.249948][ T4349] [ 84.249948][ T4349] other info that might help us debug this: [ 84.249948][ T4349] [ 84.260216][ T4349] Chain exists of: [ 84.260216][ T4349] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.260216][ T4349] [ 84.276033][ T4349] Possible unsafe locking scenario: [ 84.276033][ T4349] [ 84.283532][ T4349] CPU0 CPU1 [ 84.288957][ T4349] ---- ---- [ 84.294436][ T4349] lock(rfkill_global_mutex); [ 84.299240][ T4349] lock(&data->open_mutex); [ 84.306388][ T4349] lock(rfkill_global_mutex); [ 84.313710][ T4349] lock((work_completion)(&hdev->bg_scan_update)); [ 84.320337][ T4349] [ 84.320337][ T4349] *** DEADLOCK *** [ 84.320337][ T4349] [ 84.328514][ T4349] 1 lock held by syz.0.17/4349: [ 84.333401][ T4349] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.343555][ T4349] [ 84.343555][ T4349] stack backtrace: [ 84.349496][ T4349] CPU: 1 PID: 4349 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.356732][ T4349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 84.366813][ T4349] Call Trace: [ 84.370105][ T4349] [ 84.373060][ T4349] dump_stack_lvl+0x168/0x230 [ 84.377792][ T4349] ? load_image+0x3b0/0x3b0 [ 84.382304][ T4349] ? show_regs_print_info+0x20/0x20 [ 84.387518][ T4349] ? print_circular_bug+0x12b/0x1a0 [ 84.392738][ T4349] check_noncircular+0x274/0x310 [ 84.397690][ T4349] ? add_chain_block+0x940/0x940 [ 84.402642][ T4349] ? lockdep_lock+0xdc/0x1e0 [ 84.407327][ T4349] ? __lock_acquire+0x12d9/0x7c60 [ 84.412362][ T4349] ? lockdep_lock+0x1e0/0x1e0 [ 84.417051][ T4349] ? mark_lock+0x94/0x320 [ 84.421391][ T4349] ? _find_first_zero_bit+0xce/0xf0 [ 84.426606][ T4349] __lock_acquire+0x2c33/0x7c60 [ 84.431470][ T4349] ? verify_lock_unused+0x140/0x140 [ 84.436764][ T4349] ? verify_lock_unused+0x140/0x140 [ 84.441975][ T4349] lock_acquire+0x197/0x3f0 [ 84.446484][ T4349] ? __flush_work+0xc1/0x1b0 [ 84.451083][ T4349] ? __lock_acquire+0x7c60/0x7c60 [ 84.456130][ T4349] ? read_lock_is_recursive+0x10/0x10 [ 84.461511][ T4349] ? start_flush_work+0x776/0x820 [ 84.466564][ T4349] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.472471][ T4349] ? _raw_spin_unlock+0x40/0x40 [ 84.477371][ T4349] __flush_work+0xdd/0x1b0 [ 84.481794][ T4349] ? __flush_work+0xc1/0x1b0 [ 84.486429][ T4349] ? flush_work+0x20/0x20 [ 84.490769][ T4349] ? try_to_grab_pending+0xf3/0x7e0 [ 84.495968][ T4349] ? lockdep_hardirqs_off+0x70/0x100 [ 84.501257][ T4349] ? mark_lock+0x94/0x320 [ 84.505592][ T4349] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 84.511578][ T4349] ? lock_chain_count+0x20/0x20 [ 84.516434][ T4349] ? mark_lock+0x94/0x320 [ 84.520772][ T4349] ? __cancel_work_timer+0x331/0x520 [ 84.526062][ T4349] __cancel_work_timer+0x3ac/0x520 [ 84.531183][ T4349] ? cancel_work_sync+0x20/0x20 [ 84.536046][ T4349] ? __cancel_work+0x1f4/0x2d0 [ 84.540814][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 84.546020][ T4349] ? __cancel_work+0x26f/0x2d0 [ 84.550790][ T4349] ? cancel_work+0x20/0x20 [ 84.555205][ T4349] ? lock_chain_count+0x20/0x20 [ 84.560195][ T4349] hci_request_cancel_all+0xcc/0x300 [ 84.565546][ T4349] hci_dev_do_close+0x4e/0x1030 [ 84.570429][ T4349] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.576346][ T4349] ? _raw_spin_unlock+0x40/0x40 [ 84.581516][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 84.586741][ T4349] ? rcu_lock_release+0x20/0x20 [ 84.591707][ T4349] rfkill_set_block+0x1c6/0x420 [ 84.596569][ T4349] rfkill_fop_write+0x458/0x560 [ 84.601425][ T4349] ? verify_lock_unused+0x140/0x140 [ 84.606634][ T4349] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.611580][ T4349] ? common_file_perm+0xc0/0x1c0 [ 84.616527][ T4349] ? fsnotify_perm+0x5d/0x560 [ 84.621216][ T4349] ? security_file_permission+0x75/0xa0 [ 84.626884][ T4349] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.631843][ T4349] vfs_write+0x300/0xd00 [ 84.636111][ T4349] ? file_end_write+0x250/0x250 [ 84.641052][ T4349] ? __context_tracking_exit+0x4c/0x80 [ 84.646523][ T4349] ? __lock_acquire+0x7c60/0x7c60 [ 84.651701][ T4349] ? __fdget_pos+0x1e2/0x370 [ 84.656424][ T4349] ksys_write+0x14d/0x250 [ 84.660768][ T4349] ? __ia32_sys_read+0x80/0x80 [ 84.665569][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 84.670798][ T4349] do_syscall_64+0x4c/0xa0 [ 84.675281][ T4349] ? clear_bhb_loop+0x30/0x80 [ 84.679979][ T4349] ? clear_bhb_loop+0x30/0x80 [ 84.684667][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.690757][ T4349] RIP: 0033:0x7f131e6a2749 [ 84.695364][ T4349] 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 [ 84.714976][ T4349] RSP: 002b:00007ffd3a1025b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.723483][ T4349] RAX: ffffffffffffffda RBX: 00007f131e8f8fa0 RCX: 00007f131e6a2749 [ 84.731550][ T4349] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 84.739636][ T4349] RBP: 00007f131e726f91 R08: 0000000000000000 R09: 0000000000000000 [ 84.747616][ T4349] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.755593][ T4349] R13: 00007f131e8f8fa0 R14: 00007f131e8f8fa0 R15: 0000000000000003 [ 84.763752][ T4349] [ 84.789623][ T4252] Bluetooth: hci0: command 0x040f tx timeout