Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. 1970/01/01 00:00:43 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:44 parsed 1 programs [ 47.020694][ T4028] cgroup: Unknown subsys name 'net' [ 47.304254][ T4028] cgroup: Unknown subsys name 'rlimit' [ 47.658786][ T4028] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 56.737943][ T4051] chnl_net:caif_netlink_parms(): no params data found [ 56.785760][ T4051] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.788322][ T4051] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.791057][ T4051] device bridge_slave_0 entered promiscuous mode [ 56.795689][ T4051] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.798295][ T4051] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.802163][ T4051] device bridge_slave_1 entered promiscuous mode [ 56.819515][ T4051] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.824118][ T4051] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.844290][ T4051] team0: Port device team_slave_0 added [ 56.848412][ T4051] team0: Port device team_slave_1 added [ 56.862475][ T4051] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.864626][ T4051] 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. [ 56.872346][ T4051] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.881454][ T4051] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.883419][ T4051] 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. [ 56.890909][ T4051] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.949611][ T4051] device hsr_slave_0 entered promiscuous mode [ 56.997659][ T4051] device hsr_slave_1 entered promiscuous mode [ 57.137799][ T4051] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.190128][ T4051] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.245739][ T4051] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.293683][ T4051] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.357832][ T4051] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.360198][ T4051] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.362935][ T4051] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.365011][ T4051] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.405056][ T4051] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.416564][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.422393][ T153] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.425548][ T153] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.429061][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.441495][ T4051] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.448461][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.451859][ T153] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.453879][ T153] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.461414][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.464125][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.466109][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.480961][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.484286][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.495507][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.502653][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.508991][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.513847][ T4051] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.616682][ T4051] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.621282][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.623562][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.640919][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.658568][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.662036][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.665000][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.670722][ T4051] device veth0_vlan entered promiscuous mode [ 57.679743][ T4051] device veth1_vlan entered promiscuous mode [ 57.700510][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.703412][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.706362][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.714357][ T4051] device veth0_macvtap entered promiscuous mode [ 57.719429][ T4051] device veth1_macvtap entered promiscuous mode [ 57.730855][ T4051] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.733237][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.736111][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.742430][ T4051] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.746324][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.750915][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.754408][ T4051] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.756927][ T4051] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.760816][ T4051] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.763215][ T4051] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.049622][ T153] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.575293][ T153] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.024483][ T153] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.096164][ T153] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.463889][ T815] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.466118][ T815] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.471937][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.489547][ T815] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.491830][ T815] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.494923][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:04 executed programs: 0 [ 64.636591][ T4167] chnl_net:caif_netlink_parms(): no params data found [ 64.686771][ T4167] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.688887][ T4167] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.692628][ T4167] device bridge_slave_0 entered promiscuous mode [ 64.696727][ T4167] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.700138][ T4167] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.702903][ T4167] device bridge_slave_1 entered promiscuous mode [ 64.721232][ T4167] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.725913][ T4167] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.742958][ T4167] team0: Port device team_slave_0 added [ 64.746455][ T4167] team0: Port device team_slave_1 added [ 64.763029][ T4167] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.765021][ T4167] 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. [ 64.775307][ T4167] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.780302][ T4167] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.782160][ T4167] 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. [ 64.791900][ T4167] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.849908][ T4167] device hsr_slave_0 entered promiscuous mode [ 64.890535][ T4167] device hsr_slave_1 entered promiscuous mode [ 64.927439][ T4167] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.929730][ T4167] Cannot create hsr debugfs directory [ 65.633995][ T4167] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.675350][ T4167] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.719574][ T4167] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.750236][ T4167] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.860811][ T4167] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.870470][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.873258][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.878579][ T4167] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.891158][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.894316][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.897165][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.899178][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.903607][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.906905][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.910346][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.912331][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.916538][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.922676][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.937136][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.942489][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.946078][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.950338][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.953403][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.956324][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.962778][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.969981][ T4167] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.973858][ T4167] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.980298][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.983598][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.986598][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.003249][ T153] device hsr_slave_0 left promiscuous mode [ 66.058352][ T153] device hsr_slave_1 left promiscuous mode [ 66.138266][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.140440][ T153] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.143939][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.146059][ T153] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.152576][ T153] device bridge_slave_1 left promiscuous mode [ 66.155018][ T153] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.210714][ T153] device bridge_slave_0 left promiscuous mode [ 66.212593][ T153] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.357709][ T153] device veth1_macvtap left promiscuous mode [ 66.359750][ T153] device veth0_macvtap left promiscuous mode [ 66.361555][ T153] device veth1_vlan left promiscuous mode [ 66.363403][ T153] device veth0_vlan left promiscuous mode [ 66.518065][ T4057] Bluetooth: hci0: command 0x0409 tx timeout [ 66.633371][ T153] team0 (unregistering): Port device team_slave_1 removed [ 66.643369][ T153] team0 (unregistering): Port device team_slave_0 removed [ 66.657530][ T153] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.694528][ T153] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.852137][ T153] bond0 (unregistering): Released all slaves [ 67.011117][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.013323][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.021065][ T4167] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.034027][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.037927][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.057331][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.060039][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.063294][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.066257][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.071847][ T4167] device veth0_vlan entered promiscuous mode [ 67.085493][ T4167] device veth1_vlan entered promiscuous mode [ 67.114060][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.116764][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.122636][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.126127][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.131802][ T4167] device veth0_macvtap entered promiscuous mode [ 67.136062][ T4167] device veth1_macvtap entered promiscuous mode [ 67.155488][ T4167] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.159304][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.162155][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.164961][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.168963][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.174645][ T4167] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.177874][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.181284][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.185842][ T4167] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.189632][ T4167] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.192165][ T4167] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.194598][ T4167] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.262079][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.265566][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.272481][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.280647][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.283066][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.286312][ T815] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.494173][ T4276] [ 67.494858][ T4276] ====================================================== [ 67.496828][ T4276] WARNING: possible circular locking dependency detected [ 67.498783][ T4276] 5.15.185-syzkaller #0 Not tainted [ 67.500199][ T4276] ------------------------------------------------------ [ 67.502230][ T4276] syz.0.16/4276 is trying to acquire lock: [ 67.503825][ T4276] ffff0000d2024c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc [ 67.506875][ T4276] [ 67.506875][ T4276] but task is already holding lock: [ 67.508957][ T4276] ffff800016507d48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 67.511636][ T4276] [ 67.511636][ T4276] which lock already depends on the new lock. [ 67.511636][ T4276] [ 67.514643][ T4276] [ 67.514643][ T4276] the existing dependency chain (in reverse order) is: [ 67.517223][ T4276] [ 67.517223][ T4276] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.519485][ T4276] __mutex_lock_common+0x194/0x1edc [ 67.521157][ T4276] mutex_lock_nested+0xac/0x11c [ 67.522625][ T4276] rfkill_register+0x44/0x77c [ 67.524015][ T4276] hci_register_dev+0x3d8/0x854 [ 67.525531][ T4276] vhci_create_device+0x2bc/0x564 [ 67.527059][ T4276] vhci_write+0x30c/0x3ac [ 67.528435][ T4276] vfs_write+0x7c8/0xa2c [ 67.529733][ T4276] ksys_write+0x120/0x210 [ 67.531113][ T4276] __arm64_sys_write+0x7c/0x90 [ 67.532646][ T4276] invoke_syscall+0x98/0x2b8 [ 67.534060][ T4276] el0_svc_common+0x138/0x258 [ 67.535507][ T4276] do_el0_svc+0x58/0x14c [ 67.536865][ T4276] el0_svc+0x78/0x1e0 [ 67.538125][ T4276] el0t_64_sync_handler+0xcc/0xe4 [ 67.539729][ T4276] el0t_64_sync+0x1a0/0x1a4 [ 67.541191][ T4276] [ 67.541191][ T4276] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.543380][ T4276] __mutex_lock_common+0x194/0x1edc [ 67.544992][ T4276] mutex_lock_nested+0xac/0x11c [ 67.546507][ T4276] vhci_send_frame+0x88/0x118 [ 67.547949][ T4276] hci_send_frame+0x194/0x2f0 [ 67.549410][ T4276] hci_tx_work+0x7e4/0x1394 [ 67.550771][ T4276] process_one_work+0x79c/0x1140 [ 67.552334][ T4276] worker_thread+0x8f4/0x101c [ 67.553764][ T4276] kthread+0x374/0x454 [ 67.555056][ T4276] ret_from_fork+0x10/0x20 [ 67.556421][ T4276] [ 67.556421][ T4276] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.559080][ T4276] __flush_work+0xf4/0x1bc [ 67.560477][ T4276] flush_work+0x24/0x38 [ 67.561795][ T4276] hci_dev_do_close+0x164/0x105c [ 67.563324][ T4276] hci_unregister_dev+0x23c/0x4c0 [ 67.564936][ T4276] vhci_release+0x74/0xc4 [ 67.566337][ T4276] __fput+0x1c0/0x7f8 [ 67.567586][ T4276] ____fput+0x20/0x30 [ 67.568831][ T4276] task_work_run+0x12c/0x1e0 [ 67.570292][ T4276] do_exit+0x67c/0x1f58 [ 67.571586][ T4276] do_group_exit+0x100/0x268 [ 67.573007][ T4276] get_signal+0x73c/0x1340 [ 67.574433][ T4276] do_notify_resume+0x35c/0x3128 [ 67.575916][ T4276] el0_svc+0xf0/0x1e0 [ 67.577194][ T4276] el0t_64_sync_handler+0xcc/0xe4 [ 67.578725][ T4276] el0t_64_sync+0x1a0/0x1a4 [ 67.580119][ T4276] [ 67.580119][ T4276] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.582235][ T4276] __mutex_lock_common+0x194/0x1edc [ 67.583811][ T4276] mutex_lock_nested+0xac/0x11c [ 67.585395][ T4276] bg_scan_update+0x48/0x3d0 [ 67.586786][ T4276] process_one_work+0x79c/0x1140 [ 67.588353][ T4276] worker_thread+0x8f4/0x101c [ 67.589825][ T4276] kthread+0x374/0x454 [ 67.591131][ T4276] ret_from_fork+0x10/0x20 [ 67.592532][ T4276] [ 67.592532][ T4276] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.595282][ T4276] __lock_acquire+0x2928/0x651c [ 67.596820][ T4276] lock_acquire+0x1f4/0x620 [ 67.598281][ T4276] __flush_work+0xf4/0x1bc [ 67.599694][ T4276] __cancel_work_timer+0x2ec/0x448 [ 67.601275][ T4276] cancel_work_sync+0x24/0x38 [ 67.602722][ T4276] hci_request_cancel_all+0xbc/0x2d0 [ 67.604314][ T4276] hci_dev_do_close+0x54/0x105c [ 67.605784][ T4276] hci_rfkill_set_block+0xdc/0x1d0 [ 67.607392][ T4276] rfkill_set_block+0x18c/0x374 [ 67.608939][ T4276] rfkill_fop_write+0x4a4/0x5cc [ 67.610450][ T4276] vfs_write+0x280/0xa2c [ 67.611811][ T4276] ksys_write+0x120/0x210 [ 67.613163][ T4276] __arm64_sys_write+0x7c/0x90 [ 67.614623][ T4276] invoke_syscall+0x98/0x2b8 [ 67.616048][ T4276] el0_svc_common+0x138/0x258 [ 67.617463][ T4276] do_el0_svc+0x58/0x14c [ 67.618782][ T4276] el0_svc+0x78/0x1e0 [ 67.620031][ T4276] el0t_64_sync_handler+0xcc/0xe4 [ 67.621549][ T4276] el0t_64_sync+0x1a0/0x1a4 [ 67.622990][ T4276] [ 67.622990][ T4276] other info that might help us debug this: [ 67.622990][ T4276] [ 67.625898][ T4276] Chain exists of: [ 67.625898][ T4276] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 67.625898][ T4276] [ 67.630414][ T4276] Possible unsafe locking scenario: [ 67.630414][ T4276] [ 67.632535][ T4276] CPU0 CPU1 [ 67.634039][ T4276] ---- ---- [ 67.635543][ T4276] lock(rfkill_global_mutex); [ 67.636818][ T4276] lock(&data->open_mutex); [ 67.638812][ T4276] lock(rfkill_global_mutex); [ 67.640863][ T4276] lock((work_completion)(&hdev->bg_scan_update)); [ 67.642722][ T4276] [ 67.642722][ T4276] *** DEADLOCK *** [ 67.642722][ T4276] [ 67.645071][ T4276] 1 lock held by syz.0.16/4276: [ 67.646446][ T4276] #0: ffff800016507d48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 67.649368][ T4276] [ 67.649368][ T4276] stack backtrace: [ 67.651072][ T4276] CPU: 0 PID: 4276 Comm: syz.0.16 Not tainted 5.15.185-syzkaller #0 [ 67.653381][ T4276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 67.656310][ T4276] Call trace: [ 67.657264][ T4276] dump_backtrace+0x0/0x43c [ 67.658542][ T4276] show_stack+0x2c/0x3c [ 67.659771][ T4276] __dump_stack+0x30/0x40 [ 67.660987][ T4276] dump_stack_lvl+0xf8/0x160 [ 67.662322][ T4276] dump_stack+0x1c/0x5c [ 67.663513][ T4276] print_circular_bug+0x148/0x1b0 [ 67.664998][ T4276] check_noncircular+0x240/0x2d4 [ 67.666395][ T4276] __lock_acquire+0x2928/0x651c [ 67.667737][ T4276] lock_acquire+0x1f4/0x620 [ 67.669075][ T4276] __flush_work+0xf4/0x1bc [ 67.670532][ T4276] __cancel_work_timer+0x2ec/0x448 [ 67.671972][ T4276] cancel_work_sync+0x24/0x38 [ 67.673407][ T4276] hci_request_cancel_all+0xbc/0x2d0 [ 67.674846][ T4276] hci_dev_do_close+0x54/0x105c [ 67.676278][ T4276] hci_rfkill_set_block+0xdc/0x1d0 [ 67.677696][ T4276] rfkill_set_block+0x18c/0x374 [ 67.679158][ T4276] rfkill_fop_write+0x4a4/0x5cc [ 67.680509][ T4276] vfs_write+0x280/0xa2c [ 67.681720][ T4276] ksys_write+0x120/0x210 [ 67.682877][ T4276] __arm64_sys_write+0x7c/0x90 [ 67.684312][ T4276] invoke_syscall+0x98/0x2b8 [ 67.685576][ T4276] el0_svc_common+0x138/0x258 [ 67.686891][ T4276] do_el0_svc+0x58/0x14c [ 67.688033][ T4276] el0_svc+0x78/0x1e0 [ 67.689137][ T4276] el0t_64_sync_handler+0xcc/0xe4 [ 67.690570][ T4276] el0t_64_sync+0x1a0/0x1a4