Warning: Permanently added '10.128.0.53' (ED25519) to the list of known hosts. 2026/09/19 05:15:39 parsed 1 programs 2026/09/19 05:15:39 serving rpc on tcp://39981 [ 69.413430][ T4196] cgroup: Unknown subsys name 'net' [ 69.571095][ T4196] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.082435][ T4196] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.158434][ T1419] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.165007][ T1419] ieee802154 phy1 wpan1: encryption failed: -22 [ 74.340862][ T4247] chnl_net:caif_netlink_parms(): no params data found [ 74.410805][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.428949][ T4247] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.437254][ T4247] device bridge_slave_0 entered promiscuous mode [ 74.446849][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.454013][ T4247] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.462500][ T4247] device bridge_slave_1 entered promiscuous mode [ 74.488174][ T4247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.499636][ T4247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.527922][ T4247] team0: Port device team_slave_0 added [ 74.535866][ T4247] team0: Port device team_slave_1 added [ 74.556320][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.563296][ T4247] 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. [ 74.590206][ T4247] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.603431][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.618177][ T4247] 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. [ 74.645056][ T4247] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.686667][ T4247] device hsr_slave_0 entered promiscuous mode [ 74.693990][ T4247] device hsr_slave_1 entered promiscuous mode [ 74.826408][ T4247] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.837368][ T4247] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.846963][ T4247] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.856367][ T4247] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.953110][ T4247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.001495][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.016326][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.040861][ T4247] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.052857][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.067707][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.080772][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.088218][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.097302][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.109982][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.119258][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.128231][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.135338][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.147017][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.157989][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.169422][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.179361][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.188332][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.203905][ T4247] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.216317][ T4247] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.228647][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.238899][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.247707][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.256311][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.265855][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.274170][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.379746][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.387381][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.400710][ T4247] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.438956][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.457618][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.466353][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.473990][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.503584][ T4247] device veth0_vlan entered promiscuous mode [ 75.515774][ T4247] device veth1_vlan entered promiscuous mode [ 75.553895][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.563290][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.572349][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.582802][ T4247] device veth0_macvtap entered promiscuous mode [ 75.594203][ T4247] device veth1_macvtap entered promiscuous mode [ 75.625707][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.633411][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.643535][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.652537][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.664883][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.672188][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.681637][ T1463] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.716311][ T4247] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.725776][ T4247] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.734858][ T4247] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.743566][ T4247] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.881219][ T4247] syz-executor (4247) used greatest stack depth: 21136 bytes left [ 75.953097][ T1463] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.963871][ T1463] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.982673][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.996625][ T1463] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.004867][ T1463] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.013456][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/09/19 05:15:50 executed programs: 0 [ 77.556086][ T4304] chnl_net:caif_netlink_parms(): no params data found [ 77.608718][ T4304] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.617561][ T4304] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.625691][ T4304] device bridge_slave_0 entered promiscuous mode [ 77.633574][ T4304] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.641409][ T4304] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.650679][ T4304] device bridge_slave_1 entered promiscuous mode [ 77.680408][ T4304] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.691779][ T4304] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.713530][ T738] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.738015][ T4304] team0: Port device team_slave_0 added [ 77.745953][ T4304] team0: Port device team_slave_1 added [ 77.762948][ T4304] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.770051][ T4304] 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. [ 77.796382][ T4304] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.808471][ T4304] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.815623][ T4304] 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. [ 77.841829][ T4304] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.870542][ T4304] device hsr_slave_0 entered promiscuous mode [ 77.877468][ T4304] device hsr_slave_1 entered promiscuous mode [ 77.884165][ T4304] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.892578][ T4304] Cannot create hsr debugfs directory [ 79.485215][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 80.750739][ T738] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.789547][ T738] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.832297][ T738] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.564575][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 81.628260][ T4304] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.642584][ T4304] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.653338][ T4304] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.672901][ T4304] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.738673][ T4304] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.752066][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.760537][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.772668][ T4304] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.797991][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.806945][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.815966][ T4282] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.823051][ T4282] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.849438][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.857810][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.867044][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.877910][ T4282] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.885039][ T4282] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.892943][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.905455][ T4282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.930170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.939302][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.955393][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.963293][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.972697][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.981298][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.990365][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.001249][ T4304] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.012737][ T4304] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.020960][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.030041][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.148704][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.159195][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.179060][ T4304] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.192372][ T738] device hsr_slave_0 left promiscuous mode [ 82.200703][ T738] device hsr_slave_1 left promiscuous mode [ 82.207551][ T738] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.215191][ T738] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.223828][ T738] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.231616][ T738] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.239639][ T738] device bridge_slave_1 left promiscuous mode [ 82.246741][ T738] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.260660][ T738] device bridge_slave_0 left promiscuous mode [ 82.267801][ T738] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.290691][ T738] device veth1_macvtap left promiscuous mode [ 82.297119][ T738] device veth0_macvtap left promiscuous mode [ 82.303178][ T738] device veth1_vlan left promiscuous mode [ 82.309626][ T738] device veth0_vlan left promiscuous mode [ 82.474816][ T738] team0 (unregistering): Port device team_slave_1 removed [ 82.489409][ T738] team0 (unregistering): Port device team_slave_0 removed [ 82.503135][ T738] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.522081][ T738] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.581386][ T738] bond0 (unregistering): Released all slaves [ 82.641455][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.650427][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.672183][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.687438][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.697646][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.707997][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.720947][ T4304] device veth0_vlan entered promiscuous mode [ 82.731208][ T4304] device veth1_vlan entered promiscuous mode [ 82.751534][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.759699][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.769113][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.777969][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.788367][ T4304] device veth0_macvtap entered promiscuous mode [ 82.799485][ T4304] device veth1_macvtap entered promiscuous mode [ 82.820450][ T4304] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.829152][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.838587][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.847922][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.859513][ T4304] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.868224][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.877751][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.889530][ T4304] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.898670][ T4304] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.907951][ T4304] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.923107][ T4304] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.980991][ T4282] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.991259][ T4282] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.009090][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.023440][ T4282] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.031758][ T4282] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.040697][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.137260][ T4347] [ 83.139640][ T4347] ====================================================== [ 83.146676][ T4347] WARNING: possible circular locking dependency detected [ 83.153895][ T4347] syzkaller #0 Not tainted [ 83.158338][ T4347] ------------------------------------------------------ [ 83.165369][ T4347] syz.0.17/4347 is trying to acquire lock: [ 83.171188][ T4347] ffff88801e2d5028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 83.182315][ T4347] [ 83.182315][ T4347] but task is already holding lock: [ 83.189788][ T4347] ffffffff8d6d6b68 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 83.199498][ T4347] [ 83.199498][ T4347] which lock already depends on the new lock. [ 83.199498][ T4347] [ 83.209915][ T4347] [ 83.209915][ T4347] the existing dependency chain (in reverse order) is: [ 83.219229][ T4347] [ 83.219229][ T4347] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.227267][ T4347] __mutex_lock_common+0x1e5/0x2400 [ 83.233015][ T4347] mutex_lock_nested+0x17/0x20 [ 83.238345][ T4347] rfkill_register+0x2f/0x970 [ 83.243573][ T4347] hci_register_dev+0x459/0x980 [ 83.248978][ T4347] vhci_create_device+0x32e/0x5c0 [ 83.254555][ T4347] vhci_write+0x389/0x440 [ 83.259435][ T4347] vfs_write+0x748/0xd70 [ 83.264286][ T4347] ksys_write+0x153/0x260 [ 83.269354][ T4347] do_syscall_64+0x4c/0xa0 [ 83.274322][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.280766][ T4347] [ 83.280766][ T4347] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.288667][ T4347] __mutex_lock_common+0x1e5/0x2400 [ 83.294459][ T4347] mutex_lock_nested+0x17/0x20 [ 83.299773][ T4347] vhci_send_frame+0x88/0x100 [ 83.304996][ T4347] hci_send_frame+0x1a9/0x2e0 [ 83.310221][ T4347] hci_tx_work+0x9b5/0x16d0 [ 83.315274][ T4347] process_one_work+0x867/0xff0 [ 83.320676][ T4347] worker_thread+0xad7/0x12a0 [ 83.325910][ T4347] kthread+0x42e/0x520 [ 83.330529][ T4347] ret_from_fork+0x1f/0x30 [ 83.335513][ T4347] [ 83.335513][ T4347] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.344761][ T4347] __flush_work+0x116/0x210 [ 83.349812][ T4347] hci_dev_do_close+0x201/0x1020 [ 83.355298][ T4347] hci_unregister_dev+0x2eb/0x590 [ 83.360877][ T4347] vhci_release+0x73/0xc0 [ 83.365754][ T4347] __fput+0x212/0x8c0 [ 83.370289][ T4347] task_work_run+0x125/0x1a0 [ 83.375438][ T4347] do_exit+0x635/0x2110 [ 83.380133][ T4347] do_group_exit+0x12c/0x2f0 [ 83.385318][ T4347] get_signal+0x7eb/0x12e0 [ 83.390288][ T4347] arch_do_signal_or_restart+0xe6/0x12a0 [ 83.396476][ T4347] exit_to_user_mode_loop+0x9e/0x130 [ 83.402310][ T4347] exit_to_user_mode_prepare+0xee/0x180 [ 83.408408][ T4347] syscall_exit_to_user_mode+0x16/0x40 [ 83.414416][ T4347] do_syscall_64+0x58/0xa0 [ 83.419387][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.425834][ T4347] [ 83.425834][ T4347] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 83.433507][ T4347] __mutex_lock_common+0x1e5/0x2400 [ 83.439248][ T4347] mutex_lock_nested+0x17/0x20 [ 83.444564][ T4347] bg_scan_update+0x44/0x3b0 [ 83.449705][ T4347] process_one_work+0x867/0xff0 [ 83.455111][ T4347] worker_thread+0xad7/0x12a0 [ 83.460369][ T4347] kthread+0x42e/0x520 [ 83.464986][ T4347] ret_from_fork+0x1f/0x30 [ 83.469949][ T4347] [ 83.469949][ T4347] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.479804][ T4347] __lock_acquire+0x2c66/0x7b50 [ 83.485208][ T4347] lock_acquire+0x19e/0x400 [ 83.490266][ T4347] __flush_work+0x116/0x210 [ 83.495327][ T4347] __cancel_work_timer+0x3f4/0x560 [ 83.500988][ T4347] hci_request_cancel_all+0xcc/0x300 [ 83.506823][ T4347] hci_dev_do_close+0x4e/0x1020 [ 83.512226][ T4347] hci_rfkill_set_block+0x101/0x180 [ 83.518077][ T4347] rfkill_set_block+0x1c1/0x3c0 [ 83.523485][ T4347] rfkill_fop_write+0x453/0x560 [ 83.528891][ T4347] vfs_write+0x304/0xd70 [ 83.533689][ T4347] ksys_write+0x153/0x260 [ 83.538565][ T4347] do_syscall_64+0x4c/0xa0 [ 83.543528][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.549972][ T4347] [ 83.549972][ T4347] other info that might help us debug this: [ 83.549972][ T4347] [ 83.560219][ T4347] Chain exists of: [ 83.560219][ T4347] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.560219][ T4347] [ 83.575982][ T4347] Possible unsafe locking scenario: [ 83.575982][ T4347] [ 83.583462][ T4347] CPU0 CPU1 [ 83.588864][ T4347] ---- ---- [ 83.594261][ T4347] lock(rfkill_global_mutex); [ 83.599084][ T4347] lock(&data->open_mutex); [ 83.606220][ T4347] lock(rfkill_global_mutex); [ 83.613523][ T4347] lock((work_completion)(&hdev->bg_scan_update)); [ 83.620127][ T4347] [ 83.620127][ T4347] *** DEADLOCK *** [ 83.620127][ T4347] [ 83.628281][ T4347] 1 lock held by syz.0.17/4347: [ 83.633126][ T4347] #0: ffffffff8d6d6b68 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 83.643217][ T4347] [ 83.643217][ T4347] stack backtrace: [ 83.649111][ T4347] CPU: 1 PID: 4347 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.656322][ T4347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 83.666383][ T4347] Call Trace: [ 83.669669][ T4347] [ 83.672608][ T4347] dump_stack_lvl+0x188/0x250 [ 83.677305][ T4347] ? load_image+0x410/0x410 [ 83.681810][ T4347] ? show_regs_print_info+0x20/0x20 [ 83.687011][ T4347] ? print_circular_bug+0x12b/0x1a0 [ 83.692208][ T4347] check_noncircular+0x296/0x330 [ 83.697158][ T4347] ? look_up_lock_class+0x71/0x110 [ 83.702269][ T4347] ? add_chain_block+0x9b0/0x9b0 [ 83.707221][ T4347] ? lockdep_lock+0xf1/0x1f0 [ 83.711813][ T4347] ? __lock_acquire+0x1305/0x7b50 [ 83.716839][ T4347] ? mark_lock+0x94/0x320 [ 83.721169][ T4347] ? _find_first_zero_bit+0xd1/0xf0 [ 83.726367][ T4347] __lock_acquire+0x2c66/0x7b50 [ 83.731224][ T4347] ? verify_lock_unused+0x140/0x140 [ 83.736430][ T4347] ? verify_lock_unused+0x140/0x140 [ 83.741657][ T4347] lock_acquire+0x19e/0x400 [ 83.746190][ T4347] ? __flush_work+0xfa/0x210 [ 83.750772][ T4347] ? __lock_acquire+0x7b50/0x7b50 [ 83.755808][ T4347] ? read_lock_is_recursive+0x10/0x10 [ 83.761175][ T4347] ? start_flush_work+0x784/0x830 [ 83.766226][ T4347] __flush_work+0x116/0x210 [ 83.770734][ T4347] ? __flush_work+0xfa/0x210 [ 83.775334][ T4347] ? flush_work+0x20/0x20 [ 83.779681][ T4347] ? try_to_grab_pending+0xfb/0x820 [ 83.784911][ T4347] ? mark_lock+0x94/0x320 [ 83.789257][ T4347] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 83.795238][ T4347] ? lock_chain_count+0x20/0x20 [ 83.800085][ T4347] ? mark_lock+0x94/0x320 [ 83.804426][ T4347] ? __cancel_work_timer+0x36a/0x560 [ 83.809708][ T4347] __cancel_work_timer+0x3f4/0x560 [ 83.814822][ T4347] ? cancel_work_sync+0x20/0x20 [ 83.819672][ T4347] ? __cancel_work+0x1f9/0x2e0 [ 83.824441][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 83.829664][ T4347] ? __cancel_work+0x27b/0x2e0 [ 83.834445][ T4347] ? cancel_work+0x20/0x20 [ 83.838877][ T4347] hci_request_cancel_all+0xcc/0x300 [ 83.844185][ T4347] hci_dev_do_close+0x4e/0x1020 [ 83.849039][ T4347] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.854950][ T4347] ? _raw_spin_unlock+0x40/0x40 [ 83.859806][ T4347] hci_rfkill_set_block+0x101/0x180 [ 83.865008][ T4347] ? rcu_lock_release+0x20/0x20 [ 83.869861][ T4347] rfkill_set_block+0x1c1/0x3c0 [ 83.874714][ T4347] rfkill_fop_write+0x453/0x560 [ 83.879578][ T4347] ? rfkill_fop_read+0x560/0x560 [ 83.884521][ T4347] ? common_file_perm+0x160/0x1c0 [ 83.889560][ T4347] ? fsnotify_perm+0x5d/0x560 [ 83.894233][ T4347] ? security_file_permission+0x75/0xa0 [ 83.899806][ T4347] ? rfkill_fop_read+0x560/0x560 [ 83.904745][ T4347] vfs_write+0x304/0xd70 [ 83.908985][ T4347] ? file_end_write+0x250/0x250 [ 83.913831][ T4347] ? __context_tracking_exit+0x4c/0x80 [ 83.919295][ T4347] ? __fdget_pos+0x1e2/0x370 [ 83.923881][ T4347] ksys_write+0x153/0x260 [ 83.928224][ T4347] ? __ia32_sys_read+0x80/0x80 [ 83.932990][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 83.938203][ T4347] do_syscall_64+0x4c/0xa0 [ 83.942638][ T4347] ? clear_bhb_loop+0x30/0x80 [ 83.947318][ T4347] ? clear_bhb_loop+0x30/0x80 [ 83.951998][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.957902][ T4347] RIP: 0033:0x7f822e738159 [ 83.962317][ T4347] 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 [ 83.982011][ T4347] RSP: 002b:00007fff79694fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.990446][ T4347] RAX: ffffffffffffffda RBX: 00007f822e9bffa0 RCX: 00007f822e738159 [ 83.998419][ T4347] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 84.006387][ T4347] RBP: 00007f822e7cf06b R08: 0000000000000000 R09: 0000000000000000 [ 84.014360][ T4347] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.022330][ T4347] R13: 00007f822e9bffac R14: 00007f822e9bffa0 R15: 00007f822e9bffa0 [ 84.030308][ T4347] [ 84.042517][ T4266] Bluetooth: hci0: command 0x040f tx timeout