Warning: Permanently added '10.128.0.111' (ED25519) to the list of known hosts. 1970/01/01 00:00:38 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:39 parsed 1 programs syzkaller login: [ 41.855859][ T4040] cgroup: Unknown subsys name 'net' [ 42.075793][ T4040] cgroup: Unknown subsys name 'rlimit' [ 42.462110][ T4040] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 55.299767][ T4065] chnl_net:caif_netlink_parms(): no params data found [ 55.338815][ T4065] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.341705][ T4065] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.344299][ T4065] device bridge_slave_0 entered promiscuous mode [ 55.351674][ T4065] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.353716][ T4065] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.356283][ T4065] device bridge_slave_1 entered promiscuous mode [ 55.372395][ T4065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.376713][ T4065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.395901][ T4065] team0: Port device team_slave_0 added [ 55.399170][ T4065] team0: Port device team_slave_1 added [ 55.414023][ T4065] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.415999][ T4065] 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. [ 55.423362][ T4065] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.427857][ T4065] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.429834][ T4065] 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. [ 55.436674][ T4065] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.502122][ T4065] device hsr_slave_0 entered promiscuous mode [ 55.540031][ T4065] device hsr_slave_1 entered promiscuous mode [ 55.657711][ T4065] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.693494][ T4065] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.725729][ T4065] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.766100][ T4065] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.817719][ T4065] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.819931][ T4065] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.822458][ T4065] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.824559][ T4065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.866627][ T4065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.875038][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.879018][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.882842][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.885864][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.894605][ T4065] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.901188][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.903728][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.905692][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.922082][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.924902][ T429] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.926853][ T429] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.932392][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.935299][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.942603][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.947994][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.962011][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.966681][ T4065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.066113][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.068374][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.077556][ T4065] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.092134][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.106023][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.109069][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.113411][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.117844][ T4065] device veth0_vlan entered promiscuous mode [ 56.125260][ T4065] device veth1_vlan entered promiscuous mode [ 56.142005][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.144842][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.147530][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.153973][ T4065] device veth0_macvtap entered promiscuous mode [ 56.158074][ T4065] device veth1_macvtap entered promiscuous mode [ 56.171365][ T4065] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.173654][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.177218][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.186210][ T4065] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.190461][ T4065] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.192976][ T4065] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.195340][ T4065] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.197689][ T4065] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.202603][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.597043][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.104308][ T336] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.106559][ T336] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.109325][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.129397][ T336] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.132596][ T336] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.135479][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:58 executed programs: 0 [ 58.526865][ T4133] chnl_net:caif_netlink_parms(): no params data found [ 58.562216][ T4133] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.564283][ T4133] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.566908][ T4133] device bridge_slave_0 entered promiscuous mode [ 58.571211][ T4133] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.573331][ T4133] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.575904][ T4133] device bridge_slave_1 entered promiscuous mode [ 58.592537][ T4133] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.597076][ T4133] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.613143][ T4133] team0: Port device team_slave_0 added [ 58.616760][ T4133] team0: Port device team_slave_1 added [ 58.632960][ T4133] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.634890][ T4133] 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. [ 58.642119][ T4133] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.646258][ T4133] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.648185][ T4133] 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. [ 58.655350][ T4133] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.711789][ T4133] device hsr_slave_0 entered promiscuous mode [ 58.760394][ T4133] device hsr_slave_1 entered promiscuous mode [ 58.799834][ T4133] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 58.802115][ T4133] Cannot create hsr debugfs directory [ 60.520489][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 60.697631][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.746370][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.810687][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.600424][ T4158] Bluetooth: hci0: command 0x041b tx timeout [ 62.798735][ T4133] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.832440][ T4133] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.893721][ T4133] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.931909][ T4133] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.028353][ T4133] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.036517][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.043215][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.048227][ T4133] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.055431][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.058328][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.061124][ T429] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.063115][ T429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.065776][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.070962][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.073710][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.076303][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.078290][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.083183][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.091660][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.095764][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.098698][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.102708][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.107759][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.112043][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.117180][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.120806][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.125875][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.128625][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.156948][ T4133] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.239310][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.241670][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.247862][ T4133] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.266452][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.269297][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.287045][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.290121][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.292896][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.295453][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.300214][ T4133] device veth0_vlan entered promiscuous mode [ 63.323473][ T4133] device veth1_vlan entered promiscuous mode [ 63.339276][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.345553][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.348325][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.352540][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.357594][ T4133] device veth0_macvtap entered promiscuous mode [ 63.363802][ T4133] device veth1_macvtap entered promiscuous mode [ 63.373379][ T4133] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 63.376329][ T4133] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.380503][ T4133] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.382680][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.385405][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.387998][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.391284][ T336] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.396523][ T4133] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 63.399404][ T4133] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.403857][ T4133] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.405889][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.408678][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.414028][ T4133] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.416249][ T4133] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.418618][ T4133] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.421317][ T4133] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.458960][ T336] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.461323][ T336] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.466260][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.479109][ T429] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.483155][ T429] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.485997][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.687656][ T4196] [ 63.688405][ T4196] ====================================================== [ 63.690363][ T4196] WARNING: possible circular locking dependency detected [ 63.692269][ T4196] 5.15.189-syzkaller #0 Not tainted [ 63.693686][ T4196] ------------------------------------------------------ [ 63.695590][ T4196] syz.0.16/4196 is trying to acquire lock: [ 63.697159][ T4196] ffff0000ddc70c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc [ 63.700295][ T4196] [ 63.700295][ T4196] but task is already holding lock: [ 63.702289][ T4196] ffff80001651bc28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 63.705006][ T4196] [ 63.705006][ T4196] which lock already depends on the new lock. [ 63.705006][ T4196] [ 63.707954][ T4196] [ 63.707954][ T4196] the existing dependency chain (in reverse order) is: [ 63.710395][ T4196] [ 63.710395][ T4196] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 63.712580][ T4196] __mutex_lock_common+0x194/0x1edc [ 63.714159][ T4196] mutex_lock_nested+0xac/0x11c [ 63.715617][ T4196] rfkill_register+0x44/0x77c [ 63.716993][ T4196] hci_register_dev+0x3d8/0x854 [ 63.718419][ T4196] vhci_create_device+0x2bc/0x564 [ 63.719932][ T4196] vhci_write+0x30c/0x3ac [ 63.721244][ T4196] vfs_write+0x7c8/0xa2c [ 63.722520][ T4196] ksys_write+0x120/0x210 [ 63.723839][ T4196] __arm64_sys_write+0x7c/0x90 [ 63.725312][ T4196] invoke_syscall+0x98/0x2b8 [ 63.726743][ T4196] el0_svc_common+0x138/0x258 [ 63.728160][ T4196] do_el0_svc+0x58/0x14c [ 63.729591][ T4196] el0_svc+0x78/0x1e0 [ 63.730825][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 63.732343][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 63.733707][ T4196] [ 63.733707][ T4196] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 63.735871][ T4196] __mutex_lock_common+0x194/0x1edc [ 63.737452][ T4196] mutex_lock_nested+0xac/0x11c [ 63.738925][ T4196] vhci_send_frame+0x88/0x118 [ 63.740301][ T4196] hci_send_frame+0x194/0x2f0 [ 63.741743][ T4196] hci_tx_work+0x7e4/0x1394 [ 63.743155][ T4196] process_one_work+0x79c/0x1140 [ 63.744635][ T4196] worker_thread+0x8f4/0x101c [ 63.746005][ T4196] kthread+0x374/0x454 [ 63.747246][ T4196] ret_from_fork+0x10/0x20 [ 63.748582][ T4196] [ 63.748582][ T4196] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 63.751037][ T4196] __flush_work+0xf4/0x1bc [ 63.752359][ T4196] flush_work+0x24/0x38 [ 63.753594][ T4196] hci_dev_do_close+0x164/0x105c [ 63.755103][ T4196] hci_unregister_dev+0x23c/0x4c0 [ 63.756576][ T4196] vhci_release+0x74/0xc4 [ 63.757910][ T4196] __fput+0x1c0/0x7f8 [ 63.759105][ T4196] ____fput+0x20/0x30 [ 63.760322][ T4196] task_work_run+0x12c/0x1e0 [ 63.761698][ T4196] do_exit+0x684/0x1f58 [ 63.762903][ T4196] do_group_exit+0x100/0x268 [ 63.764240][ T4196] get_signal+0x73c/0x1340 [ 63.765601][ T4196] do_notify_resume+0x35c/0x3128 [ 63.767111][ T4196] el0_svc+0xf0/0x1e0 [ 63.768357][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 63.769863][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 63.771221][ T4196] [ 63.771221][ T4196] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 63.773307][ T4196] __mutex_lock_common+0x194/0x1edc [ 63.774880][ T4196] mutex_lock_nested+0xac/0x11c [ 63.776354][ T4196] bg_scan_update+0x48/0x3d0 [ 63.777764][ T4196] process_one_work+0x79c/0x1140 [ 63.779258][ T4196] worker_thread+0x8f4/0x101c [ 63.780656][ T4196] kthread+0x374/0x454 [ 63.781882][ T4196] ret_from_fork+0x10/0x20 [ 63.783196][ T4196] [ 63.783196][ T4196] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 63.785947][ T4196] __lock_acquire+0x2928/0x651c [ 63.787440][ T4196] lock_acquire+0x1f4/0x620 [ 63.788801][ T4196] __flush_work+0xf4/0x1bc [ 63.790211][ T4196] __cancel_work_timer+0x2ec/0x448 [ 63.791696][ T4196] cancel_work_sync+0x24/0x38 [ 63.793107][ T4196] hci_request_cancel_all+0xbc/0x2d0 [ 63.794660][ T4196] hci_dev_do_close+0x54/0x105c [ 63.796052][ T4196] hci_rfkill_set_block+0xdc/0x1d0 [ 63.797575][ T4196] rfkill_set_block+0x18c/0x374 [ 63.799010][ T4196] rfkill_fop_write+0x4a4/0x5cc [ 63.800466][ T4196] vfs_write+0x280/0xa2c [ 63.801753][ T4196] ksys_write+0x120/0x210 [ 63.803061][ T4196] __arm64_sys_write+0x7c/0x90 [ 63.804550][ T4196] invoke_syscall+0x98/0x2b8 [ 63.805975][ T4196] el0_svc_common+0x138/0x258 [ 63.807469][ T4196] do_el0_svc+0x58/0x14c [ 63.808804][ T4196] el0_svc+0x78/0x1e0 [ 63.809992][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 63.811519][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 63.812876][ T4196] [ 63.812876][ T4196] other info that might help us debug this: [ 63.812876][ T4196] [ 63.815718][ T4196] Chain exists of: [ 63.815718][ T4196] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 63.815718][ T4196] [ 63.819942][ T4196] Possible unsafe locking scenario: [ 63.819942][ T4196] [ 63.821958][ T4196] CPU0 CPU1 [ 63.823439][ T4196] ---- ---- [ 63.824863][ T4196] lock(rfkill_global_mutex); [ 63.826110][ T4196] lock(&data->open_mutex); [ 63.828032][ T4196] lock(rfkill_global_mutex); [ 63.830054][ T4196] lock((work_completion)(&hdev->bg_scan_update)); [ 63.831764][ T4196] [ 63.831764][ T4196] *** DEADLOCK *** [ 63.831764][ T4196] [ 63.833974][ T4196] 1 lock held by syz.0.16/4196: [ 63.835304][ T4196] #0: ffff80001651bc28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 63.838018][ T4196] [ 63.838018][ T4196] stack backtrace: [ 63.839640][ T4196] CPU: 0 PID: 4196 Comm: syz.0.16 Not tainted 5.15.189-syzkaller #0 [ 63.841742][ T4196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 63.844507][ T4196] Call trace: [ 63.845423][ T4196] dump_backtrace+0x0/0x43c [ 63.846741][ T4196] show_stack+0x2c/0x3c [ 63.847819][ T4196] __dump_stack+0x30/0x40 [ 63.848996][ T4196] dump_stack_lvl+0xf8/0x160 [ 63.850281][ T4196] dump_stack+0x1c/0x5c [ 63.851428][ T4196] print_circular_bug+0x148/0x1b0 [ 63.852809][ T4196] check_noncircular+0x240/0x2d4 [ 63.854247][ T4196] __lock_acquire+0x2928/0x651c [ 63.855585][ T4196] lock_acquire+0x1f4/0x620 [ 63.856773][ T4196] __flush_work+0xf4/0x1bc [ 63.857947][ T4196] __cancel_work_timer+0x2ec/0x448 [ 63.859383][ T4196] cancel_work_sync+0x24/0x38 [ 63.860590][ T4196] hci_request_cancel_all+0xbc/0x2d0 [ 63.862001][ T4196] hci_dev_do_close+0x54/0x105c [ 63.863363][ T4196] hci_rfkill_set_block+0xdc/0x1d0 [ 63.864763][ T4196] rfkill_set_block+0x18c/0x374 [ 63.866136][ T4196] rfkill_fop_write+0x4a4/0x5cc [ 63.867439][ T4196] vfs_write+0x280/0xa2c [ 63.868561][ T4196] ksys_write+0x120/0x210 [ 63.869760][ T4196] __arm64_sys_write+0x7c/0x90 [ 63.871094][ T4196] invoke_syscall+0x98/0x2b8 [ 63.872341][ T4196] el0_svc_common+0x138/0x258 [ 63.873573][ T4196] do_el0_svc+0x58/0x14c [ 63.874720][ T4196] el0_svc+0x78/0x1e0 [ 63.875759][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 63.877155][ T4196] el0t_64_sync+0x1a0/0x1a4