Warning: Permanently added '10.128.0.217' (ED25519) to the list of known hosts. 1970/01/01 00:00:46 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:46 parsed 1 programs syzkaller login: [ 49.107218][ T4024] cgroup: Unknown subsys name 'net' [ 49.343810][ T4024] cgroup: Unknown subsys name 'rlimit' [ 49.692041][ T4024] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 67.410387][ T4065] chnl_net:caif_netlink_parms(): no params data found [ 67.455430][ T4065] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.456963][ T4065] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.460783][ T4065] device bridge_slave_0 entered promiscuous mode [ 67.464704][ T4065] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.466222][ T4065] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.468471][ T4065] device bridge_slave_1 entered promiscuous mode [ 67.484938][ T4065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.488818][ T4065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.507631][ T4065] team0: Port device team_slave_0 added [ 67.510809][ T4065] team0: Port device team_slave_1 added [ 67.523357][ T4065] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.524805][ 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. [ 67.529766][ T4065] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.533518][ T4065] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.534901][ 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. [ 67.539872][ T4065] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.600334][ T4065] device hsr_slave_0 entered promiscuous mode [ 67.649503][ T4065] device hsr_slave_1 entered promiscuous mode [ 67.770412][ T4065] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.820284][ T4065] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.909519][ T4065] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.961457][ T4065] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.021221][ T4065] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.022841][ T4065] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.024805][ T4065] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.026280][ T4065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.074555][ T4065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.084764][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.089353][ T287] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.091785][ T287] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.094265][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.106047][ T4065] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.122644][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.124993][ T287] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.126376][ T287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.129407][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.131424][ T287] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.132797][ T287] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.138806][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.141083][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.151687][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.154036][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.160255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.170259][ T4065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.242257][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.244011][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.251592][ T4065] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.264623][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.277574][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.280170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.282219][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.286283][ T4065] device veth0_vlan entered promiscuous mode [ 68.295444][ T4065] device veth1_vlan entered promiscuous mode [ 68.311783][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.314024][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.316257][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.322444][ T4065] device veth0_macvtap entered promiscuous mode [ 68.326202][ T4065] device veth1_macvtap entered promiscuous mode [ 68.342258][ T4065] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.343997][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.346914][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.355053][ T4065] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.358323][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.361823][ T4065] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.363631][ T4065] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.365352][ T4065] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.367077][ T4065] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.120776][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.122497][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.125955][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.142515][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.144259][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.146733][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.435433][ T1707] ODEBUG: Out of memory. ODEBUG disabled [ 69.552880][ T1707] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:09 executed programs: 0 [ 69.612860][ T1533] cfg80211: failed to load regulatory.db [ 69.617159][ T2055] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.619499][ T2055] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.692329][ T4102] chnl_net:caif_netlink_parms(): no params data found [ 69.722814][ T4102] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.724304][ T4102] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.726323][ T4102] device bridge_slave_0 entered promiscuous mode [ 69.729334][ T4102] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.730951][ T4102] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.732980][ T4102] device bridge_slave_1 entered promiscuous mode [ 69.746778][ T4102] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.750424][ T4102] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.766703][ T4102] team0: Port device team_slave_0 added [ 69.770634][ T4102] team0: Port device team_slave_1 added [ 69.783435][ T4102] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.784898][ 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. [ 69.790499][ T4102] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.794238][ T4102] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.795712][ 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. [ 69.801788][ T4102] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.860252][ T4102] device hsr_slave_0 entered promiscuous mode [ 69.898696][ T4102] device hsr_slave_1 entered promiscuous mode [ 69.938079][ T4102] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.939812][ T4102] Cannot create hsr debugfs directory [ 71.698370][ T4063] Bluetooth: hci0: command 0x0409 tx timeout [ 71.974285][ T1707] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.713287][ T1707] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.756384][ T1707] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.768224][ T25] Bluetooth: hci0: command 0x041b tx timeout [ 74.662687][ T4102] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.712397][ T4102] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.759473][ T4102] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.799666][ T4102] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.897337][ T4102] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.905039][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.906934][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.912949][ T4102] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.916897][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.919181][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.921140][ T287] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.922509][ T287] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.924977][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.930462][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.932892][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.934817][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.936239][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.940606][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.945320][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.958266][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.960924][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.963204][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.965841][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.972159][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.974306][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.976970][ T287] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.982837][ T4102] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.985527][ T4102] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.987921][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.989969][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.054388][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.056050][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.062177][ T4102] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.072964][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.075094][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.094615][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.096838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.100276][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.102316][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.105716][ T4102] device veth0_vlan entered promiscuous mode [ 75.112401][ T4102] device veth1_vlan entered promiscuous mode [ 75.125573][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.127715][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.130624][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.132720][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.136370][ T4102] device veth0_macvtap entered promiscuous mode [ 75.140872][ T4102] device veth1_macvtap entered promiscuous mode [ 75.150698][ T4102] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 75.152850][ T4102] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.155771][ T4102] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.157642][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.159760][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.161781][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.163894][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.167496][ T4102] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 75.170260][ T4102] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.173391][ T4102] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.175031][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.177272][ T392] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.184567][ T4102] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.186463][ T4102] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.189430][ T4102] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.191182][ T4102] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.269908][ T1633] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.271570][ T1633] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.274980][ T1633] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.293670][ T392] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.295435][ T392] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.297707][ T1633] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.481454][ T4155] [ 75.482070][ T4155] ====================================================== [ 75.483423][ T4155] WARNING: possible circular locking dependency detected [ 75.484792][ T4155] 5.15.172-syzkaller #0 Not tainted [ 75.485815][ T4155] ------------------------------------------------------ [ 75.487167][ T4155] syz.0.15/4155 is trying to acquire lock: [ 75.488297][ T4155] ffff0000d76c8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 75.490440][ T4155] [ 75.490440][ T4155] but task is already holding lock: [ 75.492006][ T4155] ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 75.494104][ T4155] [ 75.494104][ T4155] which lock already depends on the new lock. [ 75.494104][ T4155] [ 75.496265][ T4155] [ 75.496265][ T4155] the existing dependency chain (in reverse order) is: [ 75.498074][ T4155] [ 75.498074][ T4155] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.499583][ T4155] __mutex_lock_common+0x194/0x2154 [ 75.500680][ T4155] mutex_lock_nested+0xa4/0xf8 [ 75.501718][ T4155] rfkill_register+0x44/0x7a4 [ 75.502805][ T4155] hci_register_dev+0x3e0/0x880 [ 75.503987][ T4155] vhci_create_device+0x2c4/0x568 [ 75.505188][ T4155] vhci_write+0x318/0x3b8 [ 75.506210][ T4155] vfs_write+0x884/0xb44 [ 75.507278][ T4155] ksys_write+0x15c/0x26c [ 75.508342][ T4155] __arm64_sys_write+0x7c/0x90 [ 75.509540][ T4155] invoke_syscall+0x98/0x2b8 [ 75.510471][ T4155] el0_svc_common+0x138/0x258 [ 75.511574][ T4155] do_el0_svc+0x58/0x14c [ 75.512516][ T4155] el0_svc+0x7c/0x1f0 [ 75.513471][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 75.514708][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 75.515726][ T4155] [ 75.515726][ T4155] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.517325][ T4155] __mutex_lock_common+0x194/0x2154 [ 75.518509][ T4155] mutex_lock_nested+0xa4/0xf8 [ 75.519535][ T4155] vhci_send_frame+0x8c/0x10c [ 75.520535][ T4155] hci_send_frame+0x194/0x2f0 [ 75.521612][ T4155] hci_tx_work+0x9ac/0x16cc [ 75.522612][ T4155] process_one_work+0x790/0x11b8 [ 75.523755][ T4155] worker_thread+0x910/0x1034 [ 75.525011][ T4155] kthread+0x37c/0x45c [ 75.525989][ T4155] ret_from_fork+0x10/0x20 [ 75.527035][ T4155] [ 75.527035][ T4155] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 75.528914][ T4155] __flush_work+0xf8/0x1c0 [ 75.529972][ T4155] flush_work+0x24/0x38 [ 75.530959][ T4155] hci_dev_do_close+0x16c/0x1060 [ 75.532106][ T4155] hci_unregister_dev+0x248/0x4d4 [ 75.533279][ T4155] vhci_release+0x74/0xc4 [ 75.534249][ T4155] __fput+0x1c4/0x800 [ 75.535198][ T4155] ____fput+0x20/0x30 [ 75.536091][ T4155] task_work_run+0x130/0x1e4 [ 75.537219][ T4155] do_exit+0x670/0x20bc [ 75.538183][ T4155] do_group_exit+0x110/0x268 [ 75.539265][ T4155] get_signal+0x634/0x1550 [ 75.540339][ T4155] do_notify_resume+0x3d0/0x32b8 [ 75.541558][ T4155] el0_svc+0xfc/0x1f0 [ 75.542458][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 75.543531][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 75.544556][ T4155] [ 75.544556][ T4155] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 75.546270][ T4155] __mutex_lock_common+0x194/0x2154 [ 75.547511][ T4155] mutex_lock_nested+0xa4/0xf8 [ 75.548623][ T4155] bg_scan_update+0x9c/0x470 [ 75.549775][ T4155] process_one_work+0x790/0x11b8 [ 75.550904][ T4155] worker_thread+0x910/0x1034 [ 75.552033][ T4155] kthread+0x37c/0x45c [ 75.552980][ T4155] ret_from_fork+0x10/0x20 [ 75.554015][ T4155] [ 75.554015][ T4155] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 75.556095][ T4155] __lock_acquire+0x32d4/0x7638 [ 75.557264][ T4155] lock_acquire+0x240/0x77c [ 75.558350][ T4155] __flush_work+0xf8/0x1c0 [ 75.559285][ T4155] __cancel_work_timer+0x3ec/0x548 [ 75.560458][ T4155] cancel_work_sync+0x24/0x38 [ 75.561493][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 75.562641][ T4155] hci_dev_do_close+0x54/0x1060 [ 75.563863][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 75.565004][ T4155] rfkill_set_block+0x18c/0x37c [ 75.566108][ T4155] rfkill_fop_write+0x594/0x750 [ 75.567266][ T4155] vfs_write+0x280/0xb44 [ 75.568210][ T4155] ksys_write+0x15c/0x26c [ 75.569227][ T4155] __arm64_sys_write+0x7c/0x90 [ 75.570413][ T4155] invoke_syscall+0x98/0x2b8 [ 75.571356][ T4155] el0_svc_common+0x138/0x258 [ 75.572390][ T4155] do_el0_svc+0x58/0x14c [ 75.573393][ T4155] el0_svc+0x7c/0x1f0 [ 75.574327][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 75.575515][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 75.576509][ T4155] [ 75.576509][ T4155] other info that might help us debug this: [ 75.576509][ T4155] [ 75.578646][ T4155] Chain exists of: [ 75.578646][ T4155] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 75.578646][ T4155] [ 75.581906][ T4155] Possible unsafe locking scenario: [ 75.581906][ T4155] [ 75.583362][ T4155] CPU0 CPU1 [ 75.584361][ T4155] ---- ---- [ 75.585414][ T4155] lock(rfkill_global_mutex); [ 75.586371][ T4155] lock(&data->open_mutex); [ 75.587884][ T4155] lock(rfkill_global_mutex); [ 75.589397][ T4155] lock((work_completion)(&hdev->bg_scan_update)); [ 75.590802][ T4155] [ 75.590802][ T4155] *** DEADLOCK *** [ 75.590802][ T4155] [ 75.592665][ T4155] 1 lock held by syz.0.15/4155: [ 75.593622][ T4155] #0: ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 75.595757][ T4155] [ 75.595757][ T4155] stack backtrace: [ 75.596921][ T4155] CPU: 0 PID: 4155 Comm: syz.0.15 Not tainted 5.15.172-syzkaller #0 [ 75.598498][ T4155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 75.600397][ T4155] Call trace: [ 75.601088][ T4155] dump_backtrace+0x0/0x530 [ 75.602078][ T4155] show_stack+0x2c/0x3c [ 75.603055][ T4155] dump_stack_lvl+0x108/0x170 [ 75.604034][ T4155] dump_stack+0x1c/0x58 [ 75.604876][ T4155] print_circular_bug+0x150/0x1b8 [ 75.605856][ T4155] check_noncircular+0x2cc/0x378 [ 75.606777][ T4155] __lock_acquire+0x32d4/0x7638 [ 75.607725][ T4155] lock_acquire+0x240/0x77c [ 75.608622][ T4155] __flush_work+0xf8/0x1c0 [ 75.609456][ T4155] __cancel_work_timer+0x3ec/0x548 [ 75.610419][ T4155] cancel_work_sync+0x24/0x38 [ 75.611314][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 75.612407][ T4155] hci_dev_do_close+0x54/0x1060 [ 75.613410][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 75.614388][ T4155] rfkill_set_block+0x18c/0x37c [ 75.615424][ T4155] rfkill_fop_write+0x594/0x750 [ 75.616471][ T4155] vfs_write+0x280/0xb44 [ 75.617318][ T4155] ksys_write+0x15c/0x26c [ 75.618238][ T4155] __arm64_sys_write+0x7c/0x90 [ 75.619221][ T4155] invoke_syscall+0x98/0x2b8 [ 75.620177][ T4155] el0_svc_common+0x138/0x258 [ 75.621105][ T4155] do_el0_svc+0x58/0x14c [ 75.621949][ T4155] el0_svc+0x7c/0x1f0 [ 75.622770][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 75.623739][ T4155] el0t_64_sync+0x1a0/0x1a4