Warning: Permanently added '10.128.0.206' (ED25519) to the list of known hosts. 2026/03/08 02:18:56 parsed 1 programs [ 53.596810][ T4189] cgroup: Unknown subsys name 'net' [ 53.733767][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 54.963754][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.427012][ T4235] chnl_net:caif_netlink_parms(): no params data found [ 57.490611][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.499666][ T4235] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.508232][ T4235] device bridge_slave_0 entered promiscuous mode [ 57.519231][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.526398][ T4235] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.534607][ T4235] device bridge_slave_1 entered promiscuous mode [ 57.562282][ T4235] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.574959][ T4235] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.603494][ T4235] team0: Port device team_slave_0 added [ 57.611338][ T4235] team0: Port device team_slave_1 added [ 57.633154][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.640303][ T4235] 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. [ 57.666529][ T4235] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.679760][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.687047][ T4235] 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. [ 57.713309][ T4235] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.750018][ T4235] device hsr_slave_0 entered promiscuous mode [ 57.757611][ T4235] device hsr_slave_1 entered promiscuous mode [ 57.877645][ T4235] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.889162][ T4235] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.899139][ T4235] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.909318][ T4235] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.937463][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.944695][ T4235] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.952708][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.959954][ T4235] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.003219][ T4235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.018966][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.028521][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.037662][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.049985][ T4235] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.066850][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.075220][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.082286][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.090358][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.099780][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.106885][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.126919][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.159727][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.170526][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.182140][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.194356][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.310063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.317776][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.331631][ T4235] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.347700][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.356966][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.372716][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.381734][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.391470][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.400144][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.409495][ T4235] device veth0_vlan entered promiscuous mode [ 58.420183][ T4235] device veth1_vlan entered promiscuous mode [ 58.439131][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.447693][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.456948][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.465825][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.476163][ T4235] device veth0_macvtap entered promiscuous mode [ 58.486679][ T4235] device veth1_macvtap entered promiscuous mode [ 58.515234][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.524792][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.533442][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.541994][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.550861][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.562763][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.571780][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.581247][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.591855][ T4235] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.602106][ T4235] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.611051][ T4235] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.620006][ T4235] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.726703][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.734681][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.756065][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.780004][ T1266] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.788516][ T1266] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.798978][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/03/08 02:19:04 executed programs: 0 [ 60.362269][ T4291] chnl_net:caif_netlink_parms(): no params data found [ 60.419478][ T4291] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.426819][ T4291] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.435121][ T4291] device bridge_slave_0 entered promiscuous mode [ 60.443953][ T4291] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.451527][ T4291] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.459783][ T4291] device bridge_slave_1 entered promiscuous mode [ 60.484492][ T4291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.496418][ T4291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.520282][ T4291] team0: Port device team_slave_0 added [ 60.527551][ T4291] team0: Port device team_slave_1 added [ 60.546367][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.553410][ T4291] 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. [ 60.579330][ T4291] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.591404][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.598406][ T4291] 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. [ 60.624704][ T4291] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.669270][ T4291] device hsr_slave_0 entered promiscuous mode [ 60.676418][ T4291] device hsr_slave_1 entered promiscuous mode [ 60.683236][ T4291] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.692171][ T4291] Cannot create hsr debugfs directory [ 60.770381][ T4291] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.286178][ T4251] Bluetooth: hci0: command 0x0409 tx timeout [ 64.365882][ T4251] Bluetooth: hci0: command 0x041b tx timeout [ 64.632630][ T4291] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.679721][ T4291] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.753012][ T4291] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.888849][ T4291] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.898225][ T4291] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.908260][ T4291] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.917519][ T4291] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.971534][ T4291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.983841][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.992003][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.002644][ T4291] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.028494][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.037797][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.047116][ T1266] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.054146][ T1266] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.066573][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.074513][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.083554][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.092398][ T1266] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.099701][ T1266] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.129431][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.142150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.153269][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.162644][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.172128][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.188425][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.199056][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.207937][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.216957][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.225128][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.233527][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.244029][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.339942][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.348163][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.376321][ T4291] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.392299][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.402008][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.430961][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.440059][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.448736][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.457988][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.473825][ T4291] device veth0_vlan entered promiscuous mode [ 65.484572][ T4291] device veth1_vlan entered promiscuous mode [ 65.507840][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.519900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.529076][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.538058][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.550332][ T144] device hsr_slave_0 left promiscuous mode [ 65.557763][ T144] device hsr_slave_1 left promiscuous mode [ 65.564733][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 65.572459][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 65.581100][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 65.588593][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 65.596624][ T144] device bridge_slave_1 left promiscuous mode [ 65.603473][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.617805][ T144] device bridge_slave_0 left promiscuous mode [ 65.624260][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.640902][ T144] device veth1_macvtap left promiscuous mode [ 65.648078][ T144] device veth0_macvtap left promiscuous mode [ 65.654105][ T144] device veth1_vlan left promiscuous mode [ 65.660732][ T144] device veth0_vlan left promiscuous mode [ 65.798474][ T144] team0 (unregistering): Port device team_slave_1 removed [ 65.811226][ T144] team0 (unregistering): Port device team_slave_0 removed [ 65.823281][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 65.839226][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 65.888867][ T144] bond0 (unregistering): Released all slaves [ 65.962276][ T4291] device veth0_macvtap entered promiscuous mode [ 65.974910][ T4291] device veth1_macvtap entered promiscuous mode [ 65.986961][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.995078][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.011458][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.019059][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.028416][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.042994][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.051409][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.060187][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.071492][ T4291] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.080598][ T4291] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.089729][ T4291] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.098767][ T4291] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.159001][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.167318][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.179436][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.212498][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.221276][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.229356][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.325194][ T4303] [ 66.327547][ T4303] ====================================================== [ 66.334556][ T4303] WARNING: possible circular locking dependency detected [ 66.341581][ T4303] syzkaller #0 Not tainted [ 66.345994][ T4303] ------------------------------------------------------ [ 66.353003][ T4303] syz.0.17/4303 is trying to acquire lock: [ 66.358803][ T4303] ffff88802a7a0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 66.369866][ T4303] [ 66.369866][ T4303] but task is already holding lock: [ 66.377225][ T4303] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 66.386898][ T4303] [ 66.386898][ T4303] which lock already depends on the new lock. [ 66.386898][ T4303] [ 66.397303][ T4303] [ 66.397303][ T4303] the existing dependency chain (in reverse order) is: [ 66.406327][ T4303] [ 66.406327][ T4303] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.414335][ T4303] __mutex_lock_common+0x1e3/0x2400 [ 66.420063][ T4303] mutex_lock_nested+0x17/0x20 [ 66.425359][ T4303] rfkill_register+0x33/0x8a0 [ 66.430567][ T4303] hci_register_dev+0x452/0x970 [ 66.435946][ T4303] vhci_create_device+0x32c/0x5c0 [ 66.441501][ T4303] vhci_write+0x391/0x450 [ 66.446388][ T4303] vfs_write+0x745/0xd60 [ 66.451160][ T4303] ksys_write+0x152/0x260 [ 66.455993][ T4303] do_syscall_64+0x4c/0xa0 [ 66.460910][ T4303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.467308][ T4303] [ 66.467308][ T4303] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.475097][ T4303] __mutex_lock_common+0x1e3/0x2400 [ 66.480794][ T4303] mutex_lock_nested+0x17/0x20 [ 66.486055][ T4303] vhci_send_frame+0x88/0x100 [ 66.491228][ T4303] hci_send_frame+0x1a9/0x2e0 [ 66.496404][ T4303] hci_tx_work+0x9f9/0x1710 [ 66.501400][ T4303] process_one_work+0x85f/0x1010 [ 66.506832][ T4303] worker_thread+0xaa6/0x1290 [ 66.512089][ T4303] kthread+0x436/0x520 [ 66.516908][ T4303] ret_from_fork+0x1f/0x30 [ 66.521816][ T4303] [ 66.521816][ T4303] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 66.530991][ T4303] __flush_work+0x116/0x210 [ 66.536033][ T4303] hci_dev_do_close+0x1e7/0x1030 [ 66.541472][ T4303] hci_unregister_dev+0x2d7/0x580 [ 66.547007][ T4303] vhci_release+0x73/0xc0 [ 66.551840][ T4303] __fput+0x234/0x930 [ 66.556319][ T4303] task_work_run+0x125/0x1a0 [ 66.561407][ T4303] do_exit+0x626/0x20c0 [ 66.566072][ T4303] do_group_exit+0x12e/0x300 [ 66.571154][ T4303] get_signal+0x6ca/0x12c0 [ 66.576072][ T4303] arch_do_signal_or_restart+0xe7/0x12c0 [ 66.582204][ T4303] exit_to_user_mode_loop+0x9e/0x130 [ 66.588067][ T4303] exit_to_user_mode_prepare+0xee/0x180 [ 66.594516][ T4303] syscall_exit_to_user_mode+0x16/0x40 [ 66.600492][ T4303] do_syscall_64+0x58/0xa0 [ 66.605438][ T4303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.611842][ T4303] [ 66.611842][ T4303] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 66.619462][ T4303] __mutex_lock_common+0x1e3/0x2400 [ 66.625164][ T4303] mutex_lock_nested+0x17/0x20 [ 66.630433][ T4303] bg_scan_update+0x44/0x3b0 [ 66.635541][ T4303] process_one_work+0x85f/0x1010 [ 66.641166][ T4303] worker_thread+0xaa6/0x1290 [ 66.646345][ T4303] kthread+0x436/0x520 [ 66.650905][ T4303] ret_from_fork+0x1f/0x30 [ 66.655815][ T4303] [ 66.655815][ T4303] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.665600][ T4303] __lock_acquire+0x2c42/0x7d10 [ 66.670953][ T4303] lock_acquire+0x19e/0x400 [ 66.675954][ T4303] __flush_work+0x116/0x210 [ 66.680969][ T4303] __cancel_work_timer+0x3f4/0x560 [ 66.686578][ T4303] hci_request_cancel_all+0xcc/0x300 [ 66.692362][ T4303] hci_dev_do_close+0x4e/0x1030 [ 66.697715][ T4303] hci_rfkill_set_block+0x10a/0x190 [ 66.703414][ T4303] rfkill_set_block+0x1c6/0x420 [ 66.708761][ T4303] rfkill_fop_write+0x452/0x560 [ 66.714108][ T4303] vfs_write+0x30b/0xd60 [ 66.718848][ T4303] ksys_write+0x152/0x260 [ 66.723680][ T4303] do_syscall_64+0x4c/0xa0 [ 66.728591][ T4303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.734994][ T4303] [ 66.734994][ T4303] other info that might help us debug this: [ 66.734994][ T4303] [ 66.745206][ T4303] Chain exists of: [ 66.745206][ T4303] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.745206][ T4303] [ 66.760904][ T4303] Possible unsafe locking scenario: [ 66.760904][ T4303] [ 66.768335][ T4303] CPU0 CPU1 [ 66.773683][ T4303] ---- ---- [ 66.779031][ T4303] lock(rfkill_global_mutex); [ 66.783782][ T4303] lock(&data->open_mutex); [ 66.790874][ T4303] lock(rfkill_global_mutex); [ 66.798137][ T4303] lock((work_completion)(&hdev->bg_scan_update)); [ 66.804713][ T4303] [ 66.804713][ T4303] *** DEADLOCK *** [ 66.804713][ T4303] [ 66.812843][ T4303] 1 lock held by syz.0.17/4303: [ 66.817669][ T4303] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 66.827736][ T4303] [ 66.827736][ T4303] stack backtrace: [ 66.833617][ T4303] CPU: 0 PID: 4303 Comm: syz.0.17 Not tainted syzkaller #0 [ 66.840787][ T4303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 66.850830][ T4303] Call Trace: [ 66.854089][ T4303] [ 66.856997][ T4303] dump_stack_lvl+0x188/0x250 [ 66.861825][ T4303] ? load_image+0x400/0x400 [ 66.866299][ T4303] ? show_regs_print_info+0x20/0x20 [ 66.871479][ T4303] ? print_circular_bug+0x12b/0x1a0 [ 66.876742][ T4303] check_noncircular+0x296/0x330 [ 66.881658][ T4303] ? look_up_lock_class+0x71/0x110 [ 66.886743][ T4303] ? add_chain_block+0x940/0x940 [ 66.891758][ T4303] ? lockdep_lock+0xf1/0x1f0 [ 66.896322][ T4303] ? __lock_acquire+0x12e8/0x7d10 [ 66.901322][ T4303] ? mark_lock+0x94/0x320 [ 66.905624][ T4303] ? _find_first_zero_bit+0xce/0xf0 [ 66.910804][ T4303] __lock_acquire+0x2c42/0x7d10 [ 66.915633][ T4303] ? verify_lock_unused+0x140/0x140 [ 66.920805][ T4303] ? verify_lock_unused+0x140/0x140 [ 66.925981][ T4303] ? mark_lock+0x94/0x320 [ 66.930300][ T4303] lock_acquire+0x19e/0x400 [ 66.934779][ T4303] ? __flush_work+0xfa/0x210 [ 66.939341][ T4303] ? __lock_acquire+0x7d10/0x7d10 [ 66.944424][ T4303] ? read_lock_is_recursive+0x10/0x10 [ 66.949768][ T4303] ? start_flush_work+0x776/0x820 [ 66.954792][ T4303] __flush_work+0x116/0x210 [ 66.959353][ T4303] ? __flush_work+0xfa/0x210 [ 66.963931][ T4303] ? flush_work+0x20/0x20 [ 66.968229][ T4303] ? try_to_grab_pending+0xfa/0x7f0 [ 66.973404][ T4303] ? mark_lock+0x94/0x320 [ 66.977707][ T4303] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 66.983664][ T4303] ? lock_chain_count+0x20/0x20 [ 66.988488][ T4303] ? mark_lock+0x94/0x320 [ 66.992789][ T4303] ? __cancel_work_timer+0x36a/0x560 [ 66.998045][ T4303] __cancel_work_timer+0x3f4/0x560 [ 67.003130][ T4303] ? cancel_work_sync+0x20/0x20 [ 67.007959][ T4303] ? __cancel_work+0x1f9/0x2e0 [ 67.012710][ T4303] ? lockdep_hardirqs_on+0x94/0x140 [ 67.017880][ T4303] ? __cancel_work+0x27b/0x2e0 [ 67.022617][ T4303] ? cancel_work+0x20/0x20 [ 67.027004][ T4303] ? lock_chain_count+0x20/0x20 [ 67.031830][ T4303] hci_request_cancel_all+0xcc/0x300 [ 67.037092][ T4303] hci_dev_do_close+0x4e/0x1030 [ 67.041917][ T4303] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 67.047869][ T4303] ? _raw_spin_unlock+0x40/0x40 [ 67.052697][ T4303] hci_rfkill_set_block+0x10a/0x190 [ 67.057868][ T4303] ? rcu_lock_release+0x20/0x20 [ 67.062695][ T4303] rfkill_set_block+0x1c6/0x420 [ 67.067523][ T4303] rfkill_fop_write+0x452/0x560 [ 67.072349][ T4303] ? rfkill_fop_read+0x4d0/0x4d0 [ 67.077285][ T4303] ? common_file_perm+0x110/0x1c0 [ 67.082294][ T4303] ? fsnotify_perm+0x5d/0x560 [ 67.086947][ T4303] ? security_file_permission+0x75/0xa0 [ 67.092464][ T4303] ? rfkill_fop_read+0x4d0/0x4d0 [ 67.097472][ T4303] vfs_write+0x30b/0xd60 [ 67.101690][ T4303] ? file_end_write+0x250/0x250 [ 67.106517][ T4303] ? __context_tracking_exit+0x4c/0x80 [ 67.111956][ T4303] ? __lock_acquire+0x7d10/0x7d10 [ 67.116961][ T4303] ? __fdget_pos+0x1e2/0x370 [ 67.121531][ T4303] ksys_write+0x152/0x260 [ 67.125840][ T4303] ? __ia32_sys_read+0x80/0x80 [ 67.130617][ T4303] ? lockdep_hardirqs_on+0x94/0x140 [ 67.136052][ T4303] do_syscall_64+0x4c/0xa0 [ 67.140538][ T4303] ? clear_bhb_loop+0x30/0x80 [ 67.145187][ T4303] ? clear_bhb_loop+0x30/0x80 [ 67.149837][ T4303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.155711][ T4303] RIP: 0033:0x7f28954a0799 [ 67.160102][ T4303] 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 [ 67.179677][ T4303] RSP: 002b:00007ffd1735eaf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 67.188063][ T4303] RAX: ffffffffffffffda RBX: 00007f2895719fa0 RCX: 00007f28954a0799 [ 67.196012][ T4303] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 67.203960][ T4303] RBP: 00007f2895536bd9 R08: 0000000000000000 R09: 0000000000000000 [ 67.211910][ T4303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 67.219857][ T4303] R13: 00007f2895719fac R14: 00007f2895719fa0 R15: 00007f2895719fa0 [ 67.227806][ T4303] [ 67.233072][ T4244] Bluetooth: hci0: command 0x040f tx timeout