Warning: Permanently added '10.128.0.229' (ED25519) to the list of known hosts. 2026/07/08 07:46:04 parsed 1 programs 2026/07/08 07:46:04 serving rpc on tcp://35597 [ 63.847526][ T4198] cgroup: Unknown subsys name 'net' [ 63.962885][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 65.168003][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 67.884525][ T4258] chnl_net:caif_netlink_parms(): no params data found [ 67.920554][ T4258] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.927920][ T4258] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.936206][ T4258] device bridge_slave_0 entered promiscuous mode [ 67.944717][ T4258] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.952027][ T4258] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.960774][ T4258] device bridge_slave_1 entered promiscuous mode [ 67.985467][ T4258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.996385][ T4258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.022026][ T4258] team0: Port device team_slave_0 added [ 68.032692][ T4258] team0: Port device team_slave_1 added [ 68.054753][ T4258] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.061830][ T4258] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 68.087968][ T4258] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.104514][ T4258] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.111690][ T4258] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 68.137650][ T4258] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.176122][ T4258] device hsr_slave_0 entered promiscuous mode [ 68.187059][ T4258] device hsr_slave_1 entered promiscuous mode [ 68.259134][ T4258] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.268958][ T4258] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.277906][ T4258] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.286583][ T4258] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.304768][ T4258] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.312003][ T4258] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.319675][ T4258] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.326784][ T4258] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.364756][ T4258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.375705][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.386080][ T397] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.394472][ T397] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.402285][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.415606][ T4258] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.425326][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.434346][ T397] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.441446][ T397] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.452963][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.461768][ T397] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.468855][ T397] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.484505][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.494831][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.504626][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.516363][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.527305][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.553826][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.634282][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.641869][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.653061][ T4258] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.685463][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.720524][ T4258] device veth0_vlan entered promiscuous mode [ 68.729689][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.740373][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.747899][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.757886][ T4258] device veth1_vlan entered promiscuous mode [ 68.785285][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.793587][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.802332][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.813449][ T4258] device veth0_macvtap entered promiscuous mode [ 68.836340][ T4258] device veth1_macvtap entered promiscuous mode [ 68.850588][ T4258] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.859062][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.868907][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.880044][ T4258] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.888991][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.897370][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.928463][ T4258] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.937235][ T4258] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.947125][ T4258] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.956280][ T4258] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.062869][ T4258] syz-executor (4258) used greatest stack depth: 20304 bytes left [ 69.192453][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.202869][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.220694][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.235593][ T4283] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.244225][ T4283] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.252930][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/08 07:46:12 executed programs: 0 [ 69.810009][ T4298] chnl_net:caif_netlink_parms(): no params data found [ 69.868866][ T4298] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.875991][ T4298] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.886302][ T4298] device bridge_slave_0 entered promiscuous mode [ 69.895549][ T4298] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.904798][ T4298] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.912964][ T4298] device bridge_slave_1 entered promiscuous mode [ 69.941451][ T4298] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.953052][ T4298] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.997276][ T4298] team0: Port device team_slave_0 added [ 70.007367][ T4298] team0: Port device team_slave_1 added [ 70.027211][ T4298] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.037481][ T4298] 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. [ 70.066309][ T4298] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.078928][ T4298] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.085878][ T4298] 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. [ 70.114766][ T4298] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.156210][ T4298] device hsr_slave_0 entered promiscuous mode [ 70.165433][ T4298] device hsr_slave_1 entered promiscuous mode [ 70.172599][ T4298] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.180365][ T4298] Cannot create hsr debugfs directory [ 70.262243][ T4298] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.160636][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.167202][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.708735][ T4277] Bluetooth: hci0: command 0x0409 tx timeout [ 72.763796][ T4298] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.788292][ T1335] Bluetooth: hci0: command 0x041b tx timeout [ 73.862299][ T4298] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.932558][ T4298] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.058401][ T4298] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.066717][ T4298] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.076071][ T4298] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.092041][ T4298] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.143544][ T4298] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.155874][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.164123][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.174915][ T4298] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.194284][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.202971][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.212841][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.219927][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.235388][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.243518][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.253467][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.262105][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.269196][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.277329][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.285998][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.306334][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.315035][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.324598][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.334333][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.343713][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.363402][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.371713][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.382080][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.391950][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.402814][ T4298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.501237][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.508992][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.526090][ T4298] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.537932][ T144] device hsr_slave_0 left promiscuous mode [ 74.545326][ T144] device hsr_slave_1 left promiscuous mode [ 74.552226][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.559866][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.569390][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.576771][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.584421][ T144] device bridge_slave_1 left promiscuous mode [ 74.591704][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.603675][ T144] device bridge_slave_0 left promiscuous mode [ 74.609954][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.625291][ T144] device veth1_macvtap left promiscuous mode [ 74.631816][ T144] device veth0_macvtap left promiscuous mode [ 74.637835][ T144] device veth1_vlan left promiscuous mode [ 74.643792][ T144] device veth0_vlan left promiscuous mode [ 74.765664][ T144] team0 (unregistering): Port device team_slave_1 removed [ 74.777745][ T144] team0 (unregistering): Port device team_slave_0 removed [ 74.791987][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.804438][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.850426][ T144] bond0 (unregistering): Released all slaves [ 74.920887][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.929574][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.946640][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.954983][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.965211][ T4298] device veth0_vlan entered promiscuous mode [ 74.971963][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.980232][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.993664][ T4298] device veth1_vlan entered promiscuous mode [ 75.020548][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.029553][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.037366][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.046190][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.057025][ T4298] device veth0_macvtap entered promiscuous mode [ 75.066935][ T4298] device veth1_macvtap entered promiscuous mode [ 75.096162][ T4298] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.103557][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.111765][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.120037][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.128562][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.139735][ T4298] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.146991][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.156133][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.169902][ T4298] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.180073][ T4298] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.188997][ T4298] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.197691][ T4298] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.245263][ T4283] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.255237][ T4283] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.265012][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.283382][ T4283] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.291327][ T4283] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.299319][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.373488][ T4310] [ 75.375832][ T4310] ====================================================== [ 75.382824][ T4310] WARNING: possible circular locking dependency detected [ 75.389828][ T4310] syzkaller #0 Not tainted [ 75.394224][ T4310] ------------------------------------------------------ [ 75.401214][ T4310] syz.0.17/4310 is trying to acquire lock: [ 75.406995][ T4310] ffff8880236f1028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 75.418034][ T4310] [ 75.418034][ T4310] but task is already holding lock: [ 75.425379][ T4310] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 75.435011][ T4310] [ 75.435011][ T4310] which lock already depends on the new lock. [ 75.435011][ T4310] [ 75.445390][ T4310] [ 75.445390][ T4310] the existing dependency chain (in reverse order) is: [ 75.454379][ T4310] [ 75.454379][ T4310] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.462343][ T4310] __mutex_lock_common+0x1e5/0x2400 [ 75.468049][ T4310] mutex_lock_nested+0x17/0x20 [ 75.473314][ T4310] rfkill_register+0x2f/0x970 [ 75.478489][ T4310] hci_register_dev+0x459/0x980 [ 75.483838][ T4310] vhci_create_device+0x32e/0x5c0 [ 75.489360][ T4310] vhci_write+0x389/0x440 [ 75.494185][ T4310] vfs_write+0x748/0xd70 [ 75.498936][ T4310] ksys_write+0x153/0x260 [ 75.503765][ T4310] do_syscall_64+0x4c/0xa0 [ 75.508681][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.515074][ T4310] [ 75.515074][ T4310] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.522867][ T4310] __mutex_lock_common+0x1e5/0x2400 [ 75.528565][ T4310] mutex_lock_nested+0x17/0x20 [ 75.533827][ T4310] vhci_send_frame+0x88/0x100 [ 75.539005][ T4310] hci_send_frame+0x1a9/0x2e0 [ 75.544188][ T4310] hci_tx_work+0x9b5/0x16d0 [ 75.549189][ T4310] process_one_work+0x867/0xff0 [ 75.554541][ T4310] worker_thread+0xad7/0x12a0 [ 75.559720][ T4310] kthread+0x42e/0x520 [ 75.564289][ T4310] ret_from_fork+0x1f/0x30 [ 75.569207][ T4310] [ 75.569207][ T4310] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 75.578388][ T4310] __flush_work+0x116/0x210 [ 75.583393][ T4310] hci_dev_do_close+0x201/0x1020 [ 75.588832][ T4310] hci_unregister_dev+0x2eb/0x590 [ 75.594360][ T4310] vhci_release+0x73/0xc0 [ 75.599188][ T4310] __fput+0x212/0x8c0 [ 75.603668][ T4310] task_work_run+0x125/0x1a0 [ 75.608756][ T4310] do_exit+0x635/0x2110 [ 75.613409][ T4310] do_group_exit+0x12c/0x2f0 [ 75.618499][ T4310] get_signal+0x7eb/0x12e0 [ 75.623420][ T4310] arch_do_signal_or_restart+0xe6/0x12a0 [ 75.629553][ T4310] exit_to_user_mode_loop+0x9e/0x130 [ 75.635336][ T4310] exit_to_user_mode_prepare+0xee/0x180 [ 75.641378][ T4310] syscall_exit_to_user_mode+0x16/0x40 [ 75.647338][ T4310] do_syscall_64+0x58/0xa0 [ 75.652251][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.658644][ T4310] [ 75.658644][ T4310] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 75.666261][ T4310] __mutex_lock_common+0x1e5/0x2400 [ 75.671959][ T4310] mutex_lock_nested+0x17/0x20 [ 75.677221][ T4310] bg_scan_update+0x44/0x3b0 [ 75.682311][ T4310] process_one_work+0x867/0xff0 [ 75.687663][ T4310] worker_thread+0xad7/0x12a0 [ 75.692842][ T4310] kthread+0x42e/0x520 [ 75.697408][ T4310] ret_from_fork+0x1f/0x30 [ 75.702353][ T4310] [ 75.702353][ T4310] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 75.712142][ T4310] __lock_acquire+0x2c66/0x7b50 [ 75.717493][ T4310] lock_acquire+0x19e/0x400 [ 75.722495][ T4310] __flush_work+0x116/0x210 [ 75.727495][ T4310] __cancel_work_timer+0x3f4/0x560 [ 75.733103][ T4310] hci_request_cancel_all+0xcc/0x300 [ 75.738889][ T4310] hci_dev_do_close+0x4e/0x1020 [ 75.744245][ T4310] hci_rfkill_set_block+0x101/0x180 [ 75.749941][ T4310] rfkill_set_block+0x1c1/0x3c0 [ 75.755292][ T4310] rfkill_fop_write+0x453/0x560 [ 75.760639][ T4310] vfs_write+0x304/0xd70 [ 75.765379][ T4310] ksys_write+0x153/0x260 [ 75.770207][ T4310] do_syscall_64+0x4c/0xa0 [ 75.775124][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.781516][ T4310] [ 75.781516][ T4310] other info that might help us debug this: [ 75.781516][ T4310] [ 75.791720][ T4310] Chain exists of: [ 75.791720][ T4310] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 75.791720][ T4310] [ 75.807416][ T4310] Possible unsafe locking scenario: [ 75.807416][ T4310] [ 75.814842][ T4310] CPU0 CPU1 [ 75.820214][ T4310] ---- ---- [ 75.825554][ T4310] lock(rfkill_global_mutex); [ 75.830295][ T4310] lock(&data->open_mutex); [ 75.837467][ T4310] lock(rfkill_global_mutex); [ 75.844727][ T4310] lock((work_completion)(&hdev->bg_scan_update)); [ 75.851293][ T4310] [ 75.851293][ T4310] *** DEADLOCK *** [ 75.851293][ T4310] [ 75.859411][ T4310] 1 lock held by syz.0.17/4310: [ 75.864236][ T4310] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 75.874304][ T4310] [ 75.874304][ T4310] stack backtrace: [ 75.880180][ T4310] CPU: 0 PID: 4310 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.887356][ T4310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 75.897400][ T4310] Call Trace: [ 75.900662][ T4310] [ 75.903577][ T4310] dump_stack_lvl+0x188/0x250 [ 75.908239][ T4310] ? load_image+0x410/0x410 [ 75.912731][ T4310] ? show_regs_print_info+0x20/0x20 [ 75.917917][ T4310] ? print_circular_bug+0x12b/0x1a0 [ 75.923098][ T4310] check_noncircular+0x296/0x330 [ 75.928014][ T4310] ? look_up_lock_class+0x71/0x110 [ 75.933113][ T4310] ? add_chain_block+0x9b0/0x9b0 [ 75.938034][ T4310] ? lockdep_lock+0xf1/0x1f0 [ 75.942608][ T4310] ? __lock_acquire+0x1305/0x7b50 [ 75.947613][ T4310] ? mark_lock+0x94/0x320 [ 75.951921][ T4310] ? _find_first_zero_bit+0xd1/0xf0 [ 75.957102][ T4310] __lock_acquire+0x2c66/0x7b50 [ 75.961935][ T4310] ? verify_lock_unused+0x140/0x140 [ 75.967114][ T4310] ? verify_lock_unused+0x140/0x140 [ 75.972300][ T4310] lock_acquire+0x19e/0x400 [ 75.976787][ T4310] ? __flush_work+0xfa/0x210 [ 75.981359][ T4310] ? __lock_acquire+0x7b50/0x7b50 [ 75.986368][ T4310] ? read_lock_is_recursive+0x10/0x10 [ 75.991725][ T4310] ? start_flush_work+0x784/0x830 [ 75.996730][ T4310] __flush_work+0x116/0x210 [ 76.001213][ T4310] ? __flush_work+0xfa/0x210 [ 76.005784][ T4310] ? flush_work+0x20/0x20 [ 76.010102][ T4310] ? try_to_grab_pending+0xfb/0x820 [ 76.015281][ T4310] ? mark_lock+0x94/0x320 [ 76.019590][ T4310] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 76.025552][ T4310] ? lock_chain_count+0x20/0x20 [ 76.030382][ T4310] ? mark_lock+0x94/0x320 [ 76.034692][ T4310] ? __cancel_work_timer+0x36a/0x560 [ 76.039957][ T4310] __cancel_work_timer+0x3f4/0x560 [ 76.045050][ T4310] ? cancel_work_sync+0x20/0x20 [ 76.049881][ T4310] ? __cancel_work+0x1f9/0x2e0 [ 76.054624][ T4310] ? lockdep_hardirqs_on+0x94/0x140 [ 76.059801][ T4310] ? __cancel_work+0x27b/0x2e0 [ 76.064565][ T4310] ? cancel_work+0x20/0x20 [ 76.068961][ T4310] hci_request_cancel_all+0xcc/0x300 [ 76.074227][ T4310] hci_dev_do_close+0x4e/0x1020 [ 76.079055][ T4310] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 76.084930][ T4310] ? _raw_spin_unlock+0x40/0x40 [ 76.089762][ T4310] hci_rfkill_set_block+0x101/0x180 [ 76.094940][ T4310] ? rcu_lock_release+0x20/0x20 [ 76.099773][ T4310] rfkill_set_block+0x1c1/0x3c0 [ 76.104604][ T4310] rfkill_fop_write+0x453/0x560 [ 76.109435][ T4310] ? rfkill_fop_read+0x560/0x560 [ 76.114352][ T4310] ? common_file_perm+0xf0/0x1c0 [ 76.119270][ T4310] ? fsnotify_perm+0x5d/0x560 [ 76.123926][ T4310] ? security_file_permission+0x75/0xa0 [ 76.129450][ T4310] ? rfkill_fop_read+0x560/0x560 [ 76.134369][ T4310] vfs_write+0x304/0xd70 [ 76.138597][ T4310] ? file_end_write+0x250/0x250 [ 76.143429][ T4310] ? __context_tracking_exit+0x4c/0x80 [ 76.148867][ T4310] ? __fdget_pos+0x1e2/0x370 [ 76.153449][ T4310] ksys_write+0x153/0x260 [ 76.157783][ T4310] ? __ia32_sys_read+0x80/0x80 [ 76.162543][ T4310] ? lockdep_hardirqs_on+0x94/0x140 [ 76.167730][ T4310] do_syscall_64+0x4c/0xa0 [ 76.172126][ T4310] ? clear_bhb_loop+0x30/0x80 [ 76.176787][ T4310] ? clear_bhb_loop+0x30/0x80 [ 76.181449][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.187333][ T4310] RIP: 0033:0x7f1cc4057e59 [ 76.191738][ T4310] 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 [ 76.211328][ T4310] RSP: 002b:00007ffefadc9208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.219721][ T4310] RAX: ffffffffffffffda RBX: 00007f1cc42dffa0 RCX: 00007f1cc4057e59 [ 76.227672][ T4310] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 76.235642][ T4310] RBP: 00007f1cc40ede6f R08: 0000000000000000 R09: 0000000000000000 [ 76.243690][ T4310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.251652][ T4310] R13: 00007f1cc42dffac R14: 00007f1cc42dffa0 R15: 00007f1cc42dffa0 [ 76.259612][ T4310] [ 76.271852][ T4275] Bluetooth: hci0: command 0x040f tx timeout