Warning: Permanently added '10.128.1.202' (ED25519) to the list of known hosts. 1970/01/01 00:00:40 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:40 parsed 1 programs syzkaller login: [ 43.428030][ T4023] cgroup: Unknown subsys name 'net' [ 43.680834][ T4023] cgroup: Unknown subsys name 'rlimit' [ 44.014924][ T4023] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 53.690303][ T4048] chnl_net:caif_netlink_parms(): no params data found [ 53.733152][ T4048] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.734916][ T4048] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.737413][ T4048] device bridge_slave_0 entered promiscuous mode [ 53.741320][ T4048] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.742788][ T4048] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.744942][ T4048] device bridge_slave_1 entered promiscuous mode [ 53.761405][ T4048] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.765498][ T4048] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.784460][ T4048] team0: Port device team_slave_0 added [ 53.787488][ T4048] team0: Port device team_slave_1 added [ 53.801825][ T4048] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.803260][ T4048] 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. [ 53.808915][ T4048] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.813140][ T4048] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.814913][ T4048] 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. [ 53.820164][ T4048] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.887601][ T4048] device hsr_slave_0 entered promiscuous mode [ 53.925205][ T4048] device hsr_slave_1 entered promiscuous mode [ 54.087626][ T4048] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.128345][ T4048] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.161492][ T4048] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.209916][ T4048] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.261697][ T4048] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.263244][ T4048] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.265209][ T4048] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.266715][ T4048] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.312796][ T4048] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.352668][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.356888][ T566] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.359383][ T566] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.368962][ T4048] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.379660][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.382089][ T566] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.383515][ T566] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.385779][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.388163][ T566] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.389786][ T566] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.413176][ T4048] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.415490][ T4048] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.419553][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.423028][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.429238][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.431827][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.434133][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.437622][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.508203][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.509958][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.519881][ T4048] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.533175][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.547961][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.550517][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.552463][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.557850][ T4048] device veth0_vlan entered promiscuous mode [ 54.564059][ T4048] device veth1_vlan entered promiscuous mode [ 54.583446][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.586390][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.588714][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.596303][ T4048] device veth0_macvtap entered promiscuous mode [ 54.600535][ T4048] device veth1_macvtap entered promiscuous mode [ 54.613183][ T4048] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.616567][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.619296][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.624731][ T4048] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.629861][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.631988][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.638011][ T4048] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.639854][ T4048] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.641592][ T4048] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.643308][ T4048] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.885235][ T1874] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.887019][ T1874] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.890546][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.912541][ T1874] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.914145][ T1874] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.917339][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.978305][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:56 executed programs: 0 [ 56.312587][ T4102] chnl_net:caif_netlink_parms(): no params data found [ 56.351429][ T4102] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.352958][ T4102] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.355735][ T4102] device bridge_slave_0 entered promiscuous mode [ 56.359130][ T4102] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.360707][ T4102] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.363017][ T4102] device bridge_slave_1 entered promiscuous mode [ 56.379082][ T4102] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.382938][ T4102] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.398032][ T4102] team0: Port device team_slave_0 added [ 56.400957][ T4102] team0: Port device team_slave_1 added [ 56.414709][ T4102] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.416837][ T4102] 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. [ 56.422064][ T4102] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.426620][ T4102] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.428060][ T4102] 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. [ 56.433564][ T4102] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.497958][ T4102] device hsr_slave_0 entered promiscuous mode [ 56.545181][ T4102] device hsr_slave_1 entered promiscuous mode [ 56.595058][ T4102] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 56.596927][ T4102] Cannot create hsr debugfs directory [ 58.265623][ T4030] Bluetooth: hci0: command 0x0409 tx timeout [ 59.152956][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.181263][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.232725][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.345068][ T3604] Bluetooth: hci0: command 0x041b tx timeout [ 61.196947][ T4102] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.230382][ T4102] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.267473][ T4102] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.307783][ T4102] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.400724][ T4102] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.408595][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.410612][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.415396][ T4102] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.419488][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.421769][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.424050][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.425514][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.429719][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.434373][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.437269][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.439308][ T1874] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.440889][ T1874] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.447547][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.451266][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.456594][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.459162][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.461564][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.467273][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.469682][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.474312][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.478405][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.483794][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.486715][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.491572][ T4102] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.592765][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.594482][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.604477][ T4102] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.616189][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.618549][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.630684][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.633293][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.636548][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.638615][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.642387][ T4102] device veth0_vlan entered promiscuous mode [ 61.649555][ T4102] device veth1_vlan entered promiscuous mode [ 61.664688][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.667501][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.669656][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.672336][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.676928][ T4102] device veth0_macvtap entered promiscuous mode [ 61.681328][ T4102] device veth1_macvtap entered promiscuous mode [ 61.691779][ T4102] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 61.694196][ T4102] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 61.697621][ T4102] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.699692][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.702022][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.704263][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.707398][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.712459][ T4102] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 61.714679][ T4102] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 61.718909][ T4102] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.720662][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.723070][ T1874] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.728289][ T4102] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.730311][ T4102] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.731998][ T4102] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.733808][ T4102] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.781891][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.783628][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.787298][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.802878][ T348] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.804562][ T348] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.807308][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.025497][ T4153] [ 62.026039][ T4153] ====================================================== [ 62.027403][ T4153] WARNING: possible circular locking dependency detected [ 62.028892][ T4153] 5.15.171-syzkaller #0 Not tainted [ 62.029879][ T4153] ------------------------------------------------------ [ 62.031223][ T4153] syz.0.15/4153 is trying to acquire lock: [ 62.032327][ T4153] ffff0000d75ecc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 62.034513][ T4153] [ 62.034513][ T4153] but task is already holding lock: [ 62.036038][ T4153] ffff800016e86ee8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.038048][ T4153] [ 62.038048][ T4153] which lock already depends on the new lock. [ 62.038048][ T4153] [ 62.040286][ T4153] [ 62.040286][ T4153] the existing dependency chain (in reverse order) is: [ 62.042118][ T4153] [ 62.042118][ T4153] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 62.043822][ T4153] __mutex_lock_common+0x194/0x2154 [ 62.044977][ T4153] mutex_lock_nested+0xa4/0xf8 [ 62.045990][ T4153] rfkill_register+0x44/0x7a4 [ 62.047165][ T4153] hci_register_dev+0x3e0/0x880 [ 62.048357][ T4153] vhci_create_device+0x2c4/0x568 [ 62.049476][ T4153] vhci_write+0x318/0x3b8 [ 62.050513][ T4153] vfs_write+0x884/0xb44 [ 62.051605][ T4153] ksys_write+0x15c/0x26c [ 62.052562][ T4153] __arm64_sys_write+0x7c/0x90 [ 62.053638][ T4153] invoke_syscall+0x98/0x2b8 [ 62.054695][ T4153] el0_svc_common+0x138/0x258 [ 62.055717][ T4153] do_el0_svc+0x58/0x14c [ 62.056688][ T4153] el0_svc+0x7c/0x1f0 [ 62.057643][ T4153] el0t_64_sync_handler+0x84/0xe4 [ 62.058846][ T4153] el0t_64_sync+0x1a0/0x1a4 [ 62.059902][ T4153] [ 62.059902][ T4153] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 62.061724][ T4153] __mutex_lock_common+0x194/0x2154 [ 62.062920][ T4153] mutex_lock_nested+0xa4/0xf8 [ 62.064007][ T4153] vhci_send_frame+0x8c/0x10c [ 62.065046][ T4153] hci_send_frame+0x194/0x2f0 [ 62.066141][ T4153] hci_tx_work+0x9ac/0x16cc [ 62.067211][ T4153] process_one_work+0x790/0x11b8 [ 62.068461][ T4153] worker_thread+0x910/0x1034 [ 62.069535][ T4153] kthread+0x37c/0x45c [ 62.070410][ T4153] ret_from_fork+0x10/0x20 [ 62.071351][ T4153] [ 62.071351][ T4153] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 62.073291][ T4153] __flush_work+0xf8/0x1c0 [ 62.074344][ T4153] flush_work+0x24/0x38 [ 62.075310][ T4153] hci_dev_do_close+0x16c/0x1060 [ 62.076319][ T4153] hci_unregister_dev+0x248/0x4d4 [ 62.077451][ T4153] vhci_release+0x74/0xc4 [ 62.078396][ T4153] __fput+0x1c4/0x800 [ 62.079291][ T4153] ____fput+0x20/0x30 [ 62.080161][ T4153] task_work_run+0x130/0x1e4 [ 62.081172][ T4153] do_exit+0x670/0x20bc [ 62.082179][ T4153] do_group_exit+0x110/0x268 [ 62.083310][ T4153] get_signal+0x634/0x1550 [ 62.084395][ T4153] do_notify_resume+0x3d0/0x32b8 [ 62.085602][ T4153] el0_svc+0xfc/0x1f0 [ 62.086594][ T4153] el0t_64_sync_handler+0x84/0xe4 [ 62.087776][ T4153] el0t_64_sync+0x1a0/0x1a4 [ 62.088851][ T4153] [ 62.088851][ T4153] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 62.090394][ T4153] __mutex_lock_common+0x194/0x2154 [ 62.091532][ T4153] mutex_lock_nested+0xa4/0xf8 [ 62.092611][ T4153] bg_scan_update+0x9c/0x470 [ 62.093604][ T4153] process_one_work+0x790/0x11b8 [ 62.094751][ T4153] worker_thread+0x910/0x1034 [ 62.095867][ T4153] kthread+0x37c/0x45c [ 62.096796][ T4153] ret_from_fork+0x10/0x20 [ 62.097771][ T4153] [ 62.097771][ T4153] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 62.099850][ T4153] __lock_acquire+0x32d4/0x7638 [ 62.101008][ T4153] lock_acquire+0x240/0x77c [ 62.102084][ T4153] __flush_work+0xf8/0x1c0 [ 62.103145][ T4153] __cancel_work_timer+0x3ec/0x548 [ 62.104209][ T4153] cancel_work_sync+0x24/0x38 [ 62.105323][ T4153] hci_request_cancel_all+0xcc/0x2d0 [ 62.106558][ T4153] hci_dev_do_close+0x54/0x1060 [ 62.107705][ T4153] hci_rfkill_set_block+0xdc/0x1d0 [ 62.108873][ T4153] rfkill_set_block+0x18c/0x37c [ 62.110026][ T4153] rfkill_fop_write+0x594/0x750 [ 62.111115][ T4153] vfs_write+0x280/0xb44 [ 62.112085][ T4153] ksys_write+0x15c/0x26c [ 62.113077][ T4153] __arm64_sys_write+0x7c/0x90 [ 62.114185][ T4153] invoke_syscall+0x98/0x2b8 [ 62.115183][ T4153] el0_svc_common+0x138/0x258 [ 62.116208][ T4153] do_el0_svc+0x58/0x14c [ 62.117226][ T4153] el0_svc+0x7c/0x1f0 [ 62.118118][ T4153] el0t_64_sync_handler+0x84/0xe4 [ 62.119201][ T4153] el0t_64_sync+0x1a0/0x1a4 [ 62.120202][ T4153] [ 62.120202][ T4153] other info that might help us debug this: [ 62.120202][ T4153] [ 62.122182][ T4153] Chain exists of: [ 62.122182][ T4153] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 62.122182][ T4153] [ 62.125312][ T4153] Possible unsafe locking scenario: [ 62.125312][ T4153] [ 62.126773][ T4153] CPU0 CPU1 [ 62.127780][ T4153] ---- ---- [ 62.128851][ T4153] lock(rfkill_global_mutex); [ 62.129742][ T4153] lock(&data->open_mutex); [ 62.131124][ T4153] lock(rfkill_global_mutex); [ 62.132558][ T4153] lock((work_completion)(&hdev->bg_scan_update)); [ 62.133963][ T4153] [ 62.133963][ T4153] *** DEADLOCK *** [ 62.133963][ T4153] [ 62.135645][ T4153] 1 lock held by syz.0.15/4153: [ 62.136654][ T4153] #0: ffff800016e86ee8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.138738][ T4153] [ 62.138738][ T4153] stack backtrace: [ 62.139965][ T4153] CPU: 1 PID: 4153 Comm: syz.0.15 Not tainted 5.15.171-syzkaller #0 [ 62.141624][ T4153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.143635][ T4153] Call trace: [ 62.144285][ T4153] dump_backtrace+0x0/0x530 [ 62.145210][ T4153] show_stack+0x2c/0x3c [ 62.146156][ T4153] dump_stack_lvl+0x108/0x170 [ 62.147201][ T4153] dump_stack+0x1c/0x58 [ 62.148097][ T4153] print_circular_bug+0x150/0x1b8 [ 62.149180][ T4153] check_noncircular+0x2cc/0x378 [ 62.150243][ T4153] __lock_acquire+0x32d4/0x7638 [ 62.151284][ T4153] lock_acquire+0x240/0x77c [ 62.152194][ T4153] __flush_work+0xf8/0x1c0 [ 62.153122][ T4153] __cancel_work_timer+0x3ec/0x548 [ 62.154220][ T4153] cancel_work_sync+0x24/0x38 [ 62.155253][ T4153] hci_request_cancel_all+0xcc/0x2d0 [ 62.156392][ T4153] hci_dev_do_close+0x54/0x1060 [ 62.157492][ T4153] hci_rfkill_set_block+0xdc/0x1d0 [ 62.158531][ T4153] rfkill_set_block+0x18c/0x37c [ 62.159544][ T4153] rfkill_fop_write+0x594/0x750 [ 62.160584][ T4153] vfs_write+0x280/0xb44 [ 62.161441][ T4153] ksys_write+0x15c/0x26c [ 62.162322][ T4153] __arm64_sys_write+0x7c/0x90 [ 62.163311][ T4153] invoke_syscall+0x98/0x2b8 [ 62.164267][ T4153] el0_svc_common+0x138/0x258 [ 62.165184][ T4153] do_el0_svc+0x58/0x14c [ 62.166016][ T4153] el0_svc+0x7c/0x1f0 [ 62.166797][ T4153] el0t_64_sync_handler+0x84/0xe4 [ 62.167851][ T4153] el0t_64_sync+0x1a0/0x1a4