Warning: Permanently added '10.128.0.14' (ED25519) to the list of known hosts. 1970/01/01 00:00:42 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:43 parsed 1 programs syzkaller login: [ 45.789968][ T4033] cgroup: Unknown subsys name 'net' [ 46.031669][ T4033] cgroup: Unknown subsys name 'rlimit' [ 46.407669][ T4033] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 55.283806][ T4076] chnl_net:caif_netlink_parms(): no params data found [ 55.325443][ T4076] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.327799][ T4076] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.330507][ T4076] device bridge_slave_0 entered promiscuous mode [ 55.334723][ T4076] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.336973][ T4076] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.339541][ T4076] device bridge_slave_1 entered promiscuous mode [ 55.357882][ T4076] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.408144][ T4076] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.423981][ T4076] team0: Port device team_slave_0 added [ 55.429318][ T4076] team0: Port device team_slave_1 added [ 55.442686][ T4076] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.444578][ T4076] 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. [ 55.453211][ T4076] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.458180][ T4076] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.460068][ T4076] 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. [ 55.468758][ T4076] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.537863][ T4076] device hsr_slave_0 entered promiscuous mode [ 55.576075][ T4076] device hsr_slave_1 entered promiscuous mode [ 55.719633][ T4076] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.758630][ T4076] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.809213][ T4076] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.898099][ T4076] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.012269][ T4076] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.021359][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.025014][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.033901][ T4076] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.040898][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.043596][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.048461][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.050424][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.061522][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.064083][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.068438][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.070995][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.073028][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.075374][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.091151][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.094557][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.098256][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.101035][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.103906][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.113835][ T4076] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 56.119160][ T4076] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.128885][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.131447][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.134431][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.138121][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.140661][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.144309][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.208547][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.210667][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.219636][ T4076] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.234391][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.237516][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.260943][ T4076] device veth0_vlan entered promiscuous mode [ 56.267228][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.269888][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.272650][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.275082][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.280149][ T4076] device veth1_vlan entered promiscuous mode [ 56.297851][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.300501][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.302978][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.307127][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.311463][ T4076] device veth0_macvtap entered promiscuous mode [ 56.316477][ T4076] device veth1_macvtap entered promiscuous mode [ 56.327448][ T4076] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.329625][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.332167][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.334773][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.340076][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.344843][ T4076] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.347803][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.350640][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.357742][ T4076] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.360160][ T4076] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.362511][ T4076] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.364941][ T4076] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.559131][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.561391][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.564110][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 56.585158][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.588649][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.591590][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:57 executed programs: 0 [ 57.556919][ T4130] chnl_net:caif_netlink_parms(): no params data found [ 57.613546][ T4130] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.615646][ T4130] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.618180][ T4130] device bridge_slave_0 entered promiscuous mode [ 57.621758][ T4130] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.623703][ T4130] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.626522][ T4130] device bridge_slave_1 entered promiscuous mode [ 57.642432][ T4130] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.648830][ T4130] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.663739][ T4130] team0: Port device team_slave_0 added [ 57.667766][ T4130] team0: Port device team_slave_1 added [ 57.680236][ T4130] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.682112][ T4130] 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. [ 57.688884][ T4130] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.693034][ T4130] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.694829][ T4130] 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. [ 57.702217][ T4130] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.778394][ T4130] device hsr_slave_0 entered promiscuous mode [ 57.816462][ T4130] device hsr_slave_1 entered promiscuous mode [ 57.855637][ T4130] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 57.857821][ T4130] Cannot create hsr debugfs directory [ 57.917783][ T4130] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.486290][ T4131] Bluetooth: hci0: command 0x0409 tx timeout [ 60.323737][ T4130] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.575592][ T4131] Bluetooth: hci0: command 0x041b tx timeout [ 61.675176][ T4130] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.752351][ T4130] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.932309][ T4130] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.958475][ T4130] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.988272][ T4130] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.027874][ T4130] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.112385][ T4130] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.120156][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.122794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.130391][ T4130] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.135264][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.138251][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.140751][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.142670][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.144950][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.150092][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.153072][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.155511][ T541] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.157409][ T541] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.162589][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.170446][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.206680][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.210391][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.213516][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.218552][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.221429][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.226826][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.229501][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.234424][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.239923][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.245393][ T4130] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.322265][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.324457][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.334504][ T4130] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.346842][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 62.350791][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.362634][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 62.365304][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.368431][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.371114][ T541] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.375446][ T4130] device veth0_vlan entered promiscuous mode [ 62.382746][ T4130] device veth1_vlan entered promiscuous mode [ 62.397943][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.400843][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.403335][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.406939][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.433203][ T4130] device veth0_macvtap entered promiscuous mode [ 62.439311][ T4130] device veth1_macvtap entered promiscuous mode [ 62.449393][ T4130] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 62.452375][ T4130] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.456379][ T4130] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.458794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.461430][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.464013][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.469707][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.474440][ T4130] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 62.478017][ T4130] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.481401][ T4130] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.483357][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.486520][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.491136][ T4130] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.493516][ T4130] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.495975][ T4130] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.498178][ T4130] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.540851][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.543007][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.553834][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.560999][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.563105][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.591234][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.629976][ T4152] [ 62.630685][ T4152] ====================================================== [ 62.632474][ T4152] WARNING: possible circular locking dependency detected [ 62.634298][ T4152] 5.15.183-syzkaller #0 Not tainted [ 62.635656][ T4152] ------------------------------------------------------ [ 62.637515][ T4152] syz.0.16/4152 is trying to acquire lock: [ 62.638995][ T4152] ffff0000d1260c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc [ 62.642043][ T4152] [ 62.642043][ T4152] but task is already holding lock: [ 62.643941][ T4152] ffff8000164f7308 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 62.646621][ T4152] [ 62.646621][ T4152] which lock already depends on the new lock. [ 62.646621][ T4152] [ 62.649460][ T4152] [ 62.649460][ T4152] the existing dependency chain (in reverse order) is: [ 62.651808][ T4152] [ 62.651808][ T4152] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 62.653892][ T4152] __mutex_lock_common+0x194/0x1edc [ 62.655401][ T4152] mutex_lock_nested+0xac/0x11c [ 62.656791][ T4152] rfkill_register+0x44/0x77c [ 62.658182][ T4152] hci_register_dev+0x3d8/0x854 [ 62.659631][ T4152] vhci_create_device+0x2bc/0x564 [ 62.661070][ T4152] vhci_write+0x30c/0x3ac [ 62.662394][ T4152] vfs_write+0x7c8/0xa2c [ 62.663641][ T4152] ksys_write+0x120/0x210 [ 62.664946][ T4152] __arm64_sys_write+0x7c/0x90 [ 62.666344][ T4152] invoke_syscall+0x98/0x2b8 [ 62.667652][ T4152] el0_svc_common+0x138/0x258 [ 62.669012][ T4152] do_el0_svc+0x58/0x14c [ 62.670282][ T4152] el0_svc+0x78/0x1e0 [ 62.671485][ T4152] el0t_64_sync_handler+0xcc/0xe4 [ 62.672952][ T4152] el0t_64_sync+0x1a0/0x1a4 [ 62.674316][ T4152] [ 62.674316][ T4152] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 62.676430][ T4152] __mutex_lock_common+0x194/0x1edc [ 62.677928][ T4152] mutex_lock_nested+0xac/0x11c [ 62.679373][ T4152] vhci_send_frame+0x88/0x118 [ 62.680794][ T4152] hci_send_frame+0x194/0x2f0 [ 62.682176][ T4152] hci_tx_work+0x7e4/0x1394 [ 62.683473][ T4152] process_one_work+0x79c/0x1140 [ 62.684896][ T4152] worker_thread+0x8f4/0x101c [ 62.686269][ T4152] kthread+0x374/0x454 [ 62.687504][ T4152] ret_from_fork+0x10/0x20 [ 62.688845][ T4152] [ 62.688845][ T4152] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 62.691311][ T4152] __flush_work+0xf4/0x1bc [ 62.692640][ T4152] flush_work+0x24/0x38 [ 62.693860][ T4152] hci_dev_do_close+0x164/0x105c [ 62.695288][ T4152] hci_unregister_dev+0x23c/0x4c0 [ 62.696787][ T4152] vhci_release+0x74/0xc4 [ 62.698078][ T4152] __fput+0x1c0/0x7f8 [ 62.699270][ T4152] ____fput+0x20/0x30 [ 62.700460][ T4152] task_work_run+0x12c/0x1e0 [ 62.701862][ T4152] do_exit+0x67c/0x1f58 [ 62.703084][ T4152] do_group_exit+0x100/0x268 [ 62.704430][ T4152] get_signal+0x73c/0x1340 [ 62.705684][ T4152] do_notify_resume+0x35c/0x3128 [ 62.707096][ T4152] el0_svc+0xf0/0x1e0 [ 62.708283][ T4152] el0t_64_sync_handler+0xcc/0xe4 [ 62.709719][ T4152] el0t_64_sync+0x1a0/0x1a4 [ 62.711103][ T4152] [ 62.711103][ T4152] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 62.713160][ T4152] __mutex_lock_common+0x194/0x1edc [ 62.714636][ T4152] mutex_lock_nested+0xac/0x11c [ 62.716022][ T4152] bg_scan_update+0x48/0x3d0 [ 62.717369][ T4152] process_one_work+0x79c/0x1140 [ 62.718859][ T4152] worker_thread+0x8f4/0x101c [ 62.720251][ T4152] kthread+0x374/0x454 [ 62.721580][ T4152] ret_from_fork+0x10/0x20 [ 62.722920][ T4152] [ 62.722920][ T4152] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 62.725584][ T4152] __lock_acquire+0x2928/0x651c [ 62.726963][ T4152] lock_acquire+0x1f4/0x620 [ 62.728281][ T4152] __flush_work+0xf4/0x1bc [ 62.729652][ T4152] __cancel_work_timer+0x2ec/0x448 [ 62.731132][ T4152] cancel_work_sync+0x24/0x38 [ 62.732646][ T4152] hci_request_cancel_all+0xbc/0x2d0 [ 62.734138][ T4152] hci_dev_do_close+0x54/0x105c [ 62.735567][ T4152] hci_rfkill_set_block+0xdc/0x1d0 [ 62.737110][ T4152] rfkill_set_block+0x18c/0x374 [ 62.738506][ T4152] rfkill_fop_write+0x4a4/0x5cc [ 62.739958][ T4152] do_iter_write+0x348/0x670 [ 62.741349][ T4152] do_writev+0x1e0/0x380 [ 62.742583][ T4152] __arm64_sys_writev+0x80/0x94 [ 62.744037][ T4152] invoke_syscall+0x98/0x2b8 [ 62.745335][ T4152] el0_svc_common+0x138/0x258 [ 62.746533][ T4152] do_el0_svc+0x58/0x14c [ 62.747622][ T4152] el0_svc+0x78/0x1e0 [ 62.748640][ T4152] el0t_64_sync_handler+0xcc/0xe4 [ 62.749900][ T4152] el0t_64_sync+0x1a0/0x1a4 [ 62.751213][ T4152] [ 62.751213][ T4152] other info that might help us debug this: [ 62.751213][ T4152] [ 62.754094][ T4152] Chain exists of: [ 62.754094][ T4152] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 62.754094][ T4152] [ 62.758307][ T4152] Possible unsafe locking scenario: [ 62.758307][ T4152] [ 62.760327][ T4152] CPU0 CPU1 [ 62.761770][ T4152] ---- ---- [ 62.763165][ T4152] lock(rfkill_global_mutex); [ 62.764423][ T4152] lock(&data->open_mutex); [ 62.766337][ T4152] lock(rfkill_global_mutex); [ 62.768242][ T4152] lock((work_completion)(&hdev->bg_scan_update)); [ 62.770045][ T4152] [ 62.770045][ T4152] *** DEADLOCK *** [ 62.770045][ T4152] [ 62.772137][ T4152] 1 lock held by syz.0.16/4152: [ 62.773410][ T4152] #0: ffff8000164f7308 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 62.776025][ T4152] [ 62.776025][ T4152] stack backtrace: [ 62.777553][ T4152] CPU: 1 PID: 4152 Comm: syz.0.16 Not tainted 5.15.183-syzkaller #0 [ 62.779693][ T4152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 62.782336][ T4152] Call trace: [ 62.783191][ T4152] dump_backtrace+0x0/0x43c [ 62.784369][ T4152] show_stack+0x2c/0x3c [ 62.785428][ T4152] __dump_stack+0x30/0x40 [ 62.786544][ T4152] dump_stack_lvl+0xf8/0x160 [ 62.787785][ T4152] dump_stack+0x1c/0x5c [ 62.788870][ T4152] print_circular_bug+0x148/0x1b0 [ 62.790209][ T4152] check_noncircular+0x240/0x2d4 [ 62.791524][ T4152] __lock_acquire+0x2928/0x651c [ 62.792824][ T4152] lock_acquire+0x1f4/0x620 [ 62.794011][ T4152] __flush_work+0xf4/0x1bc [ 62.795165][ T4152] __cancel_work_timer+0x2ec/0x448 [ 62.796504][ T4152] cancel_work_sync+0x24/0x38 [ 62.797758][ T4152] hci_request_cancel_all+0xbc/0x2d0 [ 62.799148][ T4152] hci_dev_do_close+0x54/0x105c [ 62.800392][ T4152] hci_rfkill_set_block+0xdc/0x1d0 [ 62.801739][ T4152] rfkill_set_block+0x18c/0x374 [ 62.803051][ T4152] rfkill_fop_write+0x4a4/0x5cc [ 62.804357][ T4152] do_iter_write+0x348/0x670 [ 62.805589][ T4152] do_writev+0x1e0/0x380 [ 62.806702][ T4152] __arm64_sys_writev+0x80/0x94 [ 62.807975][ T4152] invoke_syscall+0x98/0x2b8 [ 62.809176][ T4152] el0_svc_common+0x138/0x258 [ 62.810494][ T4152] do_el0_svc+0x58/0x14c [ 62.811672][ T4152] el0_svc+0x78/0x1e0 [ 62.812710][ T4152] el0t_64_sync_handler+0xcc/0xe4 [ 62.814118][ T4152] el0t_64_sync+0x1a0/0x1a4