Warning: Permanently added '10.128.0.146' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:45 parsed 1 programs syzkaller login: [ 48.515852][ T4030] cgroup: Unknown subsys name 'net' [ 48.768684][ T4030] cgroup: Unknown subsys name 'rlimit' [ 49.133083][ T4030] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 56.368053][ T4062] chnl_net:caif_netlink_parms(): no params data found [ 56.409821][ T4062] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.411350][ T4062] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.413997][ T4062] device bridge_slave_0 entered promiscuous mode [ 56.418285][ T4062] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.419738][ T4062] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.421897][ T4062] device bridge_slave_1 entered promiscuous mode [ 56.441947][ T4062] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.445800][ T4062] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.460905][ T4062] team0: Port device team_slave_0 added [ 56.469977][ T4062] team0: Port device team_slave_1 added [ 56.482917][ T4062] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.484378][ T4062] 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. [ 56.489456][ T4062] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.493441][ T4062] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.494865][ T4062] 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. [ 56.499975][ T4062] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.626201][ T4062] device hsr_slave_0 entered promiscuous mode [ 56.692823][ T4062] device hsr_slave_1 entered promiscuous mode [ 56.867673][ T4062] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.948031][ T4062] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.995527][ T4062] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.046082][ T4062] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.102320][ T4062] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.104244][ T4062] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.106282][ T4062] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.107814][ T4062] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.158454][ T4062] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.169477][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.174148][ T1600] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.176717][ T1600] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.179231][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.191832][ T4062] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.198174][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.200360][ T1600] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.201850][ T1600] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.211411][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.214851][ T1600] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.216419][ T1600] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.232862][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.237392][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.243532][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.250744][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.258779][ T4062] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.261454][ T4062] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.265744][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.340545][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.342160][ T1600] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.350487][ T4062] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.363964][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.366525][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.379942][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.383333][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.385950][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.388043][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.395919][ T4062] device veth0_vlan entered promiscuous mode [ 57.401452][ T4062] device veth1_vlan entered promiscuous mode [ 57.421061][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.424552][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.426677][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.429322][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.437574][ T4062] device veth0_macvtap entered promiscuous mode [ 57.442259][ T4062] device veth1_macvtap entered promiscuous mode [ 57.457730][ T4062] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.459572][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.463227][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.465543][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.468330][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.476087][ T4062] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.481185][ T4062] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.484249][ T4062] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.486144][ T4062] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.487899][ T4062] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.491072][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.493269][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.860855][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.863081][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.865608][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.889543][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.891323][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.894576][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:58 executed programs: 0 [ 58.876567][ T4113] chnl_net:caif_netlink_parms(): no params data found [ 58.916775][ T4113] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.918447][ T4113] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.920742][ T4113] device bridge_slave_0 entered promiscuous mode [ 58.938284][ T4113] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.939817][ T4113] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.942078][ T4113] device bridge_slave_1 entered promiscuous mode [ 58.959312][ T4113] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.963986][ T4113] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.983238][ T4113] team0: Port device team_slave_0 added [ 58.986639][ T4113] team0: Port device team_slave_1 added [ 59.001979][ T4113] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.005457][ T4113] 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. [ 59.011114][ T4113] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.015348][ T4113] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.016775][ T4113] 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. [ 59.022141][ T4113] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.074587][ T4113] device hsr_slave_0 entered promiscuous mode [ 59.122950][ T4113] device hsr_slave_1 entered promiscuous mode [ 59.162752][ T4113] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.164565][ T4113] Cannot create hsr debugfs directory [ 59.241350][ T4113] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.812949][ T25] Bluetooth: hci0: command 0x0409 tx timeout [ 62.539663][ T4113] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.708939][ T4113] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.771970][ T4113] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.893439][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 62.961914][ T4113] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.984785][ T4113] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.014619][ T4113] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.075838][ T4113] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.164419][ T4113] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.170913][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.175506][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.179805][ T4113] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.185228][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.187259][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.189240][ T301] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.190642][ T301] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.193471][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.196868][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.198913][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.201783][ T301] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.203350][ T301] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.209425][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.214718][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.220874][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.223876][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.226280][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.230721][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.237731][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.242161][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.245572][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.250333][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.252775][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.256683][ T4113] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.327648][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.329281][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.335463][ T4113] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.347059][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.349711][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.361961][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.364427][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.366660][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.368754][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.403576][ T4113] device veth0_vlan entered promiscuous mode [ 63.409682][ T4113] device veth1_vlan entered promiscuous mode [ 63.423842][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.425947][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.428054][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.430612][ T301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.437358][ T4113] device veth0_macvtap entered promiscuous mode [ 63.441629][ T4113] device veth1_macvtap entered promiscuous mode [ 63.453586][ T4113] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 63.455809][ T4113] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.458667][ T4113] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.460285][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.462577][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.464661][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.466936][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.470605][ T4113] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 63.473362][ T4113] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.476160][ T4113] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.477794][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.479938][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.484860][ T4113] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.486699][ T4113] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.488480][ T4113] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.490151][ T4113] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.533441][ T369] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.535163][ T369] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.537607][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.551392][ T369] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.554393][ T369] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.556840][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.708576][ T4137] [ 63.709211][ T4137] ====================================================== [ 63.710564][ T4137] WARNING: possible circular locking dependency detected [ 63.712096][ T4137] 5.15.173-syzkaller #0 Not tainted [ 63.713223][ T4137] ------------------------------------------------------ [ 63.714696][ T4137] syz.0.15/4137 is trying to acquire lock: [ 63.715763][ T4137] ffff0000d7668c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 63.718080][ T4137] [ 63.718080][ T4137] but task is already holding lock: [ 63.719547][ T4137] ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 63.721626][ T4137] [ 63.721626][ T4137] which lock already depends on the new lock. [ 63.721626][ T4137] [ 63.723910][ T4137] [ 63.723910][ T4137] the existing dependency chain (in reverse order) is: [ 63.725792][ T4137] [ 63.725792][ T4137] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 63.727527][ T4137] __mutex_lock_common+0x194/0x2154 [ 63.728756][ T4137] mutex_lock_nested+0xa4/0xf8 [ 63.729898][ T4137] rfkill_register+0x44/0x7a4 [ 63.731017][ T4137] hci_register_dev+0x3e0/0x880 [ 63.732164][ T4137] vhci_create_device+0x2c4/0x568 [ 63.733405][ T4137] vhci_write+0x318/0x3b8 [ 63.734409][ T4137] vfs_write+0x884/0xb44 [ 63.735389][ T4137] ksys_write+0x15c/0x26c [ 63.736364][ T4137] __arm64_sys_write+0x7c/0x90 [ 63.737447][ T4137] invoke_syscall+0x98/0x2b8 [ 63.738497][ T4137] el0_svc_common+0x138/0x258 [ 63.739611][ T4137] do_el0_svc+0x58/0x14c [ 63.740587][ T4137] el0_svc+0x7c/0x1f0 [ 63.741604][ T4137] el0t_64_sync_handler+0x84/0xe4 [ 63.742787][ T4137] el0t_64_sync+0x1a0/0x1a4 [ 63.743839][ T4137] [ 63.743839][ T4137] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 63.745568][ T4137] __mutex_lock_common+0x194/0x2154 [ 63.746803][ T4137] mutex_lock_nested+0xa4/0xf8 [ 63.747869][ T4137] vhci_send_frame+0x8c/0x10c [ 63.748902][ T4137] hci_send_frame+0x194/0x2f0 [ 63.749979][ T4137] hci_tx_work+0x9ac/0x16cc [ 63.751038][ T4137] process_one_work+0x790/0x11b8 [ 63.752173][ T4137] worker_thread+0x910/0x1034 [ 63.753191][ T4137] kthread+0x37c/0x45c [ 63.754146][ T4137] ret_from_fork+0x10/0x20 [ 63.755223][ T4137] [ 63.755223][ T4137] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 63.757247][ T4137] __flush_work+0xf8/0x1c0 [ 63.758307][ T4137] flush_work+0x24/0x38 [ 63.759231][ T4137] hci_dev_do_close+0x16c/0x1060 [ 63.760504][ T4137] hci_unregister_dev+0x248/0x4d4 [ 63.761642][ T4137] vhci_release+0x74/0xc4 [ 63.762660][ T4137] __fput+0x1c4/0x800 [ 63.763501][ T4137] ____fput+0x20/0x30 [ 63.764475][ T4137] task_work_run+0x130/0x1e4 [ 63.765546][ T4137] do_exit+0x670/0x20bc [ 63.766555][ T4137] do_group_exit+0x110/0x268 [ 63.767670][ T4137] get_signal+0x634/0x1550 [ 63.768781][ T4137] do_notify_resume+0x3d0/0x32b8 [ 63.769904][ T4137] el0_svc+0xfc/0x1f0 [ 63.770869][ T4137] el0t_64_sync_handler+0x84/0xe4 [ 63.772172][ T4137] el0t_64_sync+0x1a0/0x1a4 [ 63.773240][ T4137] [ 63.773240][ T4137] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 63.774867][ T4137] __mutex_lock_common+0x194/0x2154 [ 63.776089][ T4137] mutex_lock_nested+0xa4/0xf8 [ 63.777249][ T4137] bg_scan_update+0x9c/0x470 [ 63.778481][ T4137] process_one_work+0x790/0x11b8 [ 63.779688][ T4137] worker_thread+0x910/0x1034 [ 63.780783][ T4137] kthread+0x37c/0x45c [ 63.781696][ T4137] ret_from_fork+0x10/0x20 [ 63.782716][ T4137] [ 63.782716][ T4137] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 63.784927][ T4137] __lock_acquire+0x32d4/0x7638 [ 63.786049][ T4137] lock_acquire+0x240/0x77c [ 63.787186][ T4137] __flush_work+0xf8/0x1c0 [ 63.788326][ T4137] __cancel_work_timer+0x3ec/0x548 [ 63.789498][ T4137] cancel_work_sync+0x24/0x38 [ 63.790543][ T4137] hci_request_cancel_all+0xcc/0x2d0 [ 63.791832][ T4137] hci_dev_do_close+0x54/0x1060 [ 63.792915][ T4137] hci_rfkill_set_block+0xdc/0x1d0 [ 63.794039][ T4137] rfkill_set_block+0x18c/0x37c [ 63.795122][ T4137] rfkill_fop_write+0x594/0x750 [ 63.796131][ T4137] vfs_write+0x280/0xb44 [ 63.797083][ T4137] ksys_write+0x15c/0x26c [ 63.798116][ T4137] __arm64_sys_write+0x7c/0x90 [ 63.799200][ T4137] invoke_syscall+0x98/0x2b8 [ 63.800294][ T4137] el0_svc_common+0x138/0x258 [ 63.801429][ T4137] do_el0_svc+0x58/0x14c [ 63.802471][ T4137] el0_svc+0x7c/0x1f0 [ 63.803488][ T4137] el0t_64_sync_handler+0x84/0xe4 [ 63.804660][ T4137] el0t_64_sync+0x1a0/0x1a4 [ 63.805733][ T4137] [ 63.805733][ T4137] other info that might help us debug this: [ 63.805733][ T4137] [ 63.807776][ T4137] Chain exists of: [ 63.807776][ T4137] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 63.807776][ T4137] [ 63.811155][ T4137] Possible unsafe locking scenario: [ 63.811155][ T4137] [ 63.812758][ T4137] CPU0 CPU1 [ 63.813778][ T4137] ---- ---- [ 63.814924][ T4137] lock(rfkill_global_mutex); [ 63.815875][ T4137] lock(&data->open_mutex); [ 63.817388][ T4137] lock(rfkill_global_mutex); [ 63.818882][ T4137] lock((work_completion)(&hdev->bg_scan_update)); [ 63.820387][ T4137] [ 63.820387][ T4137] *** DEADLOCK *** [ 63.820387][ T4137] [ 63.822115][ T4137] 1 lock held by syz.0.15/4137: [ 63.823026][ T4137] #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 63.825149][ T4137] [ 63.825149][ T4137] stack backtrace: [ 63.826400][ T4137] CPU: 1 PID: 4137 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 63.827946][ T4137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 63.830086][ T4137] Call trace: [ 63.830742][ T4137] dump_backtrace+0x0/0x530 [ 63.831634][ T4137] show_stack+0x2c/0x3c [ 63.832551][ T4137] dump_stack_lvl+0x108/0x170 [ 63.833531][ T4137] dump_stack+0x1c/0x58 [ 63.834441][ T4137] print_circular_bug+0x150/0x1b8 [ 63.835441][ T4137] check_noncircular+0x2cc/0x378 [ 63.836372][ T4137] __lock_acquire+0x32d4/0x7638 [ 63.837407][ T4137] lock_acquire+0x240/0x77c [ 63.838345][ T4137] __flush_work+0xf8/0x1c0 [ 63.839301][ T4137] __cancel_work_timer+0x3ec/0x548 [ 63.840356][ T4137] cancel_work_sync+0x24/0x38 [ 63.841301][ T4137] hci_request_cancel_all+0xcc/0x2d0 [ 63.842409][ T4137] hci_dev_do_close+0x54/0x1060 [ 63.843446][ T4137] hci_rfkill_set_block+0xdc/0x1d0 [ 63.844447][ T4137] rfkill_set_block+0x18c/0x37c [ 63.845562][ T4137] rfkill_fop_write+0x594/0x750 [ 63.846692][ T4137] vfs_write+0x280/0xb44 [ 63.847673][ T4137] ksys_write+0x15c/0x26c [ 63.848604][ T4137] __arm64_sys_write+0x7c/0x90 [ 63.849667][ T4137] invoke_syscall+0x98/0x2b8 [ 63.850605][ T4137] el0_svc_common+0x138/0x258 [ 63.851588][ T4137] do_el0_svc+0x58/0x14c [ 63.852546][ T4137] el0_svc+0x7c/0x1f0 [ 63.853389][ T4137] el0t_64_sync_handler+0x84/0xe4 [ 63.854399][ T4137] el0t_64_sync+0x1a0/0x1a4