Warning: Permanently added '10.128.1.124' (ED25519) to the list of known hosts. 2026/04/25 22:45:04 parsed 1 programs [ 67.871446][ T4190] cgroup: Unknown subsys name 'net' [ 68.007075][ T4190] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.449096][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.083592][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.090165][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.341878][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.350930][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.360806][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.382814][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.390672][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.398507][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 72.736834][ T1270] ODEBUG: Out of memory. ODEBUG disabled [ 72.783427][ T4250] chnl_net:caif_netlink_parms(): no params data found [ 72.885765][ T4250] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.893630][ T4250] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.902876][ T4250] device bridge_slave_0 entered promiscuous mode [ 72.924352][ T4250] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.931730][ T4250] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.939764][ T4250] device bridge_slave_1 entered promiscuous mode [ 72.982126][ T4250] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.993877][ T4250] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.026181][ T4250] team0: Port device team_slave_0 added [ 73.034042][ T4250] team0: Port device team_slave_1 added [ 73.051456][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.058513][ T4250] 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. [ 73.084729][ T4250] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.096764][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.103900][ T4250] 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. [ 73.129952][ T4250] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.157827][ T4250] device hsr_slave_0 entered promiscuous mode [ 73.164703][ T4250] device hsr_slave_1 entered promiscuous mode [ 73.244729][ T4250] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.254639][ T4250] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.263802][ T4250] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.272657][ T4250] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.292937][ T4250] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.300090][ T4250] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.307677][ T4250] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.314773][ T4250] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.353395][ T4250] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.366280][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.374571][ T1211] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.382567][ T1211] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.390581][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.402674][ T4250] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.413108][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.422248][ T1211] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.429316][ T1211] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.453862][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.462523][ T1211] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.469582][ T1211] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.479776][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.488950][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.497495][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.523581][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.534157][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.544573][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.634868][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.642701][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.655961][ T4250] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.693582][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.709208][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.718156][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.727419][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.735524][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.745517][ T4250] device veth0_vlan entered promiscuous mode [ 73.775712][ T4250] device veth1_vlan entered promiscuous mode [ 73.794402][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.804245][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.813061][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.822766][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.833270][ T4250] device veth0_macvtap entered promiscuous mode [ 73.844519][ T4250] device veth1_macvtap entered promiscuous mode [ 73.873415][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.880859][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.889430][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.897787][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.907156][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.918010][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.927091][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.935702][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.946258][ T4250] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.955320][ T4250] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.965966][ T4250] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.975071][ T4250] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/25 22:45:13 executed programs: 0 [ 75.137247][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 75.198268][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.205495][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.216290][ T4297] device bridge_slave_0 entered promiscuous mode [ 75.224974][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.234419][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.244354][ T4297] device bridge_slave_1 entered promiscuous mode [ 75.270296][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.283872][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.310420][ T4297] team0: Port device team_slave_0 added [ 75.320922][ T4297] team0: Port device team_slave_1 added [ 75.343184][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.350245][ T4297] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 75.376493][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.388910][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.396128][ T4297] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 75.422952][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.457291][ T4297] device hsr_slave_0 entered promiscuous mode [ 75.464071][ T4297] device hsr_slave_1 entered promiscuous mode [ 75.470589][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.479066][ T4297] Cannot create hsr debugfs directory [ 75.558824][ T4297] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.081830][ T4306] Bluetooth: hci0: command 0x0409 tx timeout [ 78.556750][ T4297] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.162160][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 79.226349][ T4297] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.288281][ T4297] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.388035][ T4297] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.399123][ T4297] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.417834][ T4297] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.426905][ T4297] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.485255][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.504628][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.511956][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.519714][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.530607][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.539522][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.548317][ T1211] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.555449][ T1211] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.564694][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.582632][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.591367][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.600897][ T1211] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.608140][ T1211] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.618826][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.630553][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.653292][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.663881][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.672672][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.693712][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.703522][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.715439][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.723900][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.743320][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.752726][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.764086][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.836306][ T1270] device hsr_slave_0 left promiscuous mode [ 79.844364][ T1270] device hsr_slave_1 left promiscuous mode [ 79.852811][ T1270] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.860255][ T1270] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.870408][ T1270] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.878859][ T1270] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.886510][ T1270] device bridge_slave_1 left promiscuous mode [ 79.893355][ T1270] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.905545][ T1270] device bridge_slave_0 left promiscuous mode [ 79.912520][ T1270] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.928717][ T1270] device veth1_macvtap left promiscuous mode [ 79.935782][ T1270] device veth0_macvtap left promiscuous mode [ 79.941914][ T1270] device veth1_vlan left promiscuous mode [ 79.947753][ T1270] device veth0_vlan left promiscuous mode [ 80.082303][ T1270] team0 (unregistering): Port device team_slave_1 removed [ 80.095318][ T1270] team0 (unregistering): Port device team_slave_0 removed [ 80.107325][ T1270] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.120464][ T1270] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.170645][ T1270] bond0 (unregistering): Released all slaves [ 80.212636][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.220101][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.232561][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.256356][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.265707][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.284776][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.293195][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.303175][ T4297] device veth0_vlan entered promiscuous mode [ 80.312814][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.320684][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.330578][ T4297] device veth1_vlan entered promiscuous mode [ 80.353096][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.362782][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.370651][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.379412][ T1211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.390902][ T4297] device veth0_macvtap entered promiscuous mode [ 80.400292][ T4297] device veth1_macvtap entered promiscuous mode [ 80.417154][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.429433][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.437512][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.445995][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.454486][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.465979][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.474086][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.482830][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.494357][ T4297] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.503656][ T4297] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.512709][ T4297] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.521901][ T4297] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.575367][ T1211] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.588931][ T1211] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.614527][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.629487][ T1211] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.638378][ T1211] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.648370][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.762212][ T4315] [ 80.764597][ T4315] ====================================================== [ 80.771623][ T4315] WARNING: possible circular locking dependency detected [ 80.778666][ T4315] syzkaller #0 Not tainted [ 80.783099][ T4315] ------------------------------------------------------ [ 80.790135][ T4315] syz.0.17/4315 is trying to acquire lock: [ 80.795963][ T4315] ffff888074550c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 80.807065][ T4315] [ 80.807065][ T4315] but task is already holding lock: [ 80.814447][ T4315] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.824191][ T4315] [ 80.824191][ T4315] which lock already depends on the new lock. [ 80.824191][ T4315] [ 80.834646][ T4315] [ 80.834646][ T4315] the existing dependency chain (in reverse order) is: [ 80.843695][ T4315] [ 80.843695][ T4315] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.851707][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 80.857459][ T4315] mutex_lock_nested+0x17/0x20 [ 80.862764][ T4315] rfkill_register+0x33/0x980 [ 80.867997][ T4315] hci_register_dev+0x452/0x970 [ 80.873414][ T4315] vhci_create_device+0x32c/0x5c0 [ 80.878990][ T4315] vhci_write+0x391/0x450 [ 80.883871][ T4315] vfs_write+0x745/0xd60 [ 80.888664][ T4315] ksys_write+0x152/0x260 [ 80.893538][ T4315] do_syscall_64+0x4c/0xa0 [ 80.898502][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.904939][ T4315] [ 80.904939][ T4315] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.912786][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 80.918538][ T4315] mutex_lock_nested+0x17/0x20 [ 80.923853][ T4315] vhci_send_frame+0x88/0x100 [ 80.929074][ T4315] hci_send_frame+0x1a9/0x2e0 [ 80.934293][ T4315] hci_tx_work+0x9f9/0x1710 [ 80.939336][ T4315] process_one_work+0x85f/0x1010 [ 80.944835][ T4315] worker_thread+0xaa6/0x1290 [ 80.950057][ T4315] kthread+0x436/0x520 [ 80.954673][ T4315] ret_from_fork+0x1f/0x30 [ 80.959626][ T4315] [ 80.959626][ T4315] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.968863][ T4315] __flush_work+0x116/0x210 [ 80.973912][ T4315] hci_dev_do_close+0x1e7/0x1030 [ 80.979407][ T4315] hci_unregister_dev+0x2d7/0x580 [ 80.984980][ T4315] vhci_release+0x73/0xc0 [ 80.989859][ T4315] __fput+0x234/0x930 [ 80.994398][ T4315] task_work_run+0x125/0x1a0 [ 80.999528][ T4315] do_exit+0x626/0x20c0 [ 81.004224][ T4315] do_group_exit+0x12e/0x300 [ 81.009350][ T4315] get_signal+0x6ca/0x12c0 [ 81.014315][ T4315] arch_do_signal_or_restart+0xe7/0x12c0 [ 81.020536][ T4315] exit_to_user_mode_loop+0x9e/0x130 [ 81.026355][ T4315] exit_to_user_mode_prepare+0xee/0x180 [ 81.032447][ T4315] syscall_exit_to_user_mode+0x16/0x40 [ 81.038473][ T4315] do_syscall_64+0x58/0xa0 [ 81.043437][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.049914][ T4315] [ 81.049914][ T4315] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.057583][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 81.063326][ T4315] mutex_lock_nested+0x17/0x20 [ 81.068639][ T4315] bg_scan_update+0x44/0x3b0 [ 81.073784][ T4315] process_one_work+0x85f/0x1010 [ 81.079271][ T4315] worker_thread+0xaa6/0x1290 [ 81.084505][ T4315] kthread+0x436/0x520 [ 81.089120][ T4315] ret_from_fork+0x1f/0x30 [ 81.094083][ T4315] [ 81.094083][ T4315] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.103923][ T4315] __lock_acquire+0x2c42/0x7d10 [ 81.109325][ T4315] lock_acquire+0x19e/0x400 [ 81.114371][ T4315] __flush_work+0x116/0x210 [ 81.119420][ T4315] __cancel_work_timer+0x3f4/0x560 [ 81.125082][ T4315] hci_request_cancel_all+0xcc/0x300 [ 81.130915][ T4315] hci_dev_do_close+0x4e/0x1030 [ 81.136304][ T4315] hci_rfkill_set_block+0x10a/0x190 [ 81.142049][ T4315] rfkill_set_block+0x1c9/0x3d0 [ 81.147448][ T4315] rfkill_fop_write+0x452/0x560 [ 81.152840][ T4315] vfs_write+0x30b/0xd60 [ 81.157642][ T4315] ksys_write+0x152/0x260 [ 81.162522][ T4315] do_syscall_64+0x4c/0xa0 [ 81.167485][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.173936][ T4315] [ 81.173936][ T4315] other info that might help us debug this: [ 81.173936][ T4315] [ 81.184177][ T4315] Chain exists of: [ 81.184177][ T4315] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 81.184177][ T4315] [ 81.199928][ T4315] Possible unsafe locking scenario: [ 81.199928][ T4315] [ 81.207388][ T4315] CPU0 CPU1 [ 81.212782][ T4315] ---- ---- [ 81.218177][ T4315] lock(rfkill_global_mutex); [ 81.222966][ T4315] lock(&data->open_mutex); [ 81.230098][ T4315] lock(rfkill_global_mutex); [ 81.237410][ T4315] lock((work_completion)(&hdev->bg_scan_update)); [ 81.244017][ T4315] [ 81.244017][ T4315] *** DEADLOCK *** [ 81.244017][ T4315] [ 81.252172][ T4315] 1 lock held by syz.0.17/4315: [ 81.257036][ T4315] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.267170][ T4315] [ 81.267170][ T4315] stack backtrace: [ 81.272771][ T4305] Bluetooth: hci0: command 0x040f tx timeout [ 81.273101][ T4315] CPU: 0 PID: 4315 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.286263][ T4315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 81.296351][ T4315] Call Trace: [ 81.299652][ T4315] [ 81.302603][ T4315] dump_stack_lvl+0x188/0x250 [ 81.307319][ T4315] ? load_image+0x400/0x400 [ 81.311847][ T4315] ? show_regs_print_info+0x20/0x20 [ 81.317104][ T4315] ? print_circular_bug+0x12b/0x1a0 [ 81.322318][ T4315] check_noncircular+0x296/0x330 [ 81.327284][ T4315] ? look_up_lock_class+0x71/0x110 [ 81.332420][ T4315] ? add_chain_block+0x940/0x940 [ 81.337371][ T4315] ? lockdep_lock+0xf1/0x1f0 [ 81.341974][ T4315] ? __lock_acquire+0x12e8/0x7d10 [ 81.347058][ T4315] ? mark_lock+0x94/0x320 [ 81.351404][ T4315] __lock_acquire+0x2c42/0x7d10 [ 81.356304][ T4315] ? verify_lock_unused+0x140/0x140 [ 81.361525][ T4315] ? mark_lock+0x94/0x320 [ 81.365878][ T4315] lock_acquire+0x19e/0x400 [ 81.370409][ T4315] ? __flush_work+0xfa/0x210 [ 81.375022][ T4315] ? __lock_acquire+0x7d10/0x7d10 [ 81.380072][ T4315] ? read_lock_is_recursive+0x10/0x10 [ 81.385468][ T4315] ? start_flush_work+0x776/0x820 [ 81.390522][ T4315] __flush_work+0x116/0x210 [ 81.395052][ T4315] ? __flush_work+0xfa/0x210 [ 81.399657][ T4315] ? flush_work+0x20/0x20 [ 81.404013][ T4315] ? try_to_grab_pending+0xfa/0x7f0 [ 81.409235][ T4315] ? mark_lock+0x94/0x320 [ 81.413584][ T4315] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 81.419596][ T4315] ? lock_chain_count+0x20/0x20 [ 81.424461][ T4315] ? mark_lock+0x94/0x320 [ 81.428815][ T4315] ? __cancel_work_timer+0x36a/0x560 [ 81.434133][ T4315] __cancel_work_timer+0x3f4/0x560 [ 81.439268][ T4315] ? cancel_work_sync+0x20/0x20 [ 81.444143][ T4315] ? __cancel_work+0x1f9/0x2e0 [ 81.448936][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 81.454170][ T4315] ? __cancel_work+0x27b/0x2e0 [ 81.458953][ T4315] ? cancel_work+0x20/0x20 [ 81.463380][ T4315] ? lock_chain_count+0x20/0x20 [ 81.468253][ T4315] hci_request_cancel_all+0xcc/0x300 [ 81.473557][ T4315] hci_dev_do_close+0x4e/0x1030 [ 81.478428][ T4315] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.484365][ T4315] ? _raw_spin_unlock+0x40/0x40 [ 81.489236][ T4315] hci_rfkill_set_block+0x10a/0x190 [ 81.494553][ T4315] ? rcu_lock_release+0x20/0x20 [ 81.499428][ T4315] rfkill_set_block+0x1c9/0x3d0 [ 81.504314][ T4315] rfkill_fop_write+0x452/0x560 [ 81.509181][ T4315] ? rfkill_fop_read+0x520/0x520 [ 81.514135][ T4315] ? common_file_perm+0x140/0x1c0 [ 81.519179][ T4315] ? fsnotify_perm+0x5d/0x560 [ 81.523880][ T4315] ? security_file_permission+0x75/0xa0 [ 81.529458][ T4315] ? rfkill_fop_read+0x520/0x520 [ 81.534422][ T4315] vfs_write+0x30b/0xd60 [ 81.538711][ T4315] ? file_end_write+0x250/0x250 [ 81.543591][ T4315] ? __context_tracking_exit+0x4c/0x80 [ 81.549075][ T4315] ? __lock_acquire+0x7d10/0x7d10 [ 81.554170][ T4315] ? __fdget_pos+0x1e2/0x370 [ 81.558784][ T4315] ksys_write+0x152/0x260 [ 81.563128][ T4315] ? __ia32_sys_read+0x80/0x80 [ 81.567925][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 81.573147][ T4315] do_syscall_64+0x4c/0xa0 [ 81.577608][ T4315] ? clear_bhb_loop+0x30/0x80 [ 81.582317][ T4315] ? clear_bhb_loop+0x30/0x80 [ 81.587024][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.592958][ T4315] RIP: 0033:0x7f6e34fa5dd9 [ 81.597414][ T4315] 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 [ 81.617045][ T4315] RSP: 002b:00007ffdbbf2c4a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.625489][ T4315] RAX: ffffffffffffffda RBX: 00007f6e3521efa0 RCX: 00007f6e34fa5dd9 [ 81.633487][ T4315] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 81.641472][ T4315] RBP: 00007f6e3503bd69 R08: 0000000000000000 R09: 0000000000000000 [ 81.649459][ T4315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.657467][ T4315] R13: 00007f6e3521efac R14: 00007f6e3521efa0 R15: 00007f6e3521efa0 [ 81.665462][ T4315] [ 81.669709][ T13] cfg80211: failed to load regulatory.db