Warning: Permanently added '10.128.0.86' (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: [ 43.082907][ T4024] cgroup: Unknown subsys name 'net' [ 43.331182][ T4024] cgroup: Unknown subsys name 'rlimit' [ 43.654395][ T4024] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 50.556117][ T4034] chnl_net:caif_netlink_parms(): no params data found [ 50.594188][ T4034] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.596380][ T4034] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.598846][ T4034] device bridge_slave_0 entered promiscuous mode [ 50.603493][ T4034] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.605119][ T4034] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.607913][ T4034] device bridge_slave_1 entered promiscuous mode [ 50.626770][ T4034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.630866][ T4034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.645359][ T4034] team0: Port device team_slave_0 added [ 50.648694][ T4034] team0: Port device team_slave_1 added [ 50.662895][ T4034] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.664434][ T4034] 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. [ 50.670379][ T4034] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.674489][ T4034] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.676236][ T4034] 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. [ 50.682003][ T4034] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.757754][ T4034] device hsr_slave_0 entered promiscuous mode [ 50.796002][ T4034] device hsr_slave_1 entered promiscuous mode [ 50.912511][ T4034] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.948449][ T4034] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.998090][ T4034] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.048772][ T4034] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.114744][ T4034] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.116719][ T4034] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.118834][ T4034] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.120520][ T4034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.161216][ T4034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.168713][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.172456][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.175729][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.178783][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.187944][ T4034] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.193532][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.197290][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.198854][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.203807][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.207731][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.209370][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.224338][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.227473][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.234007][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.240158][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.247550][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.251430][ T4034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.321379][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.323205][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.332033][ T4034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.346271][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.359036][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.361750][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.363978][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.370745][ T4034] device veth0_vlan entered promiscuous mode [ 51.377540][ T4034] device veth1_vlan entered promiscuous mode [ 51.392052][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.394334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.397277][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.402037][ T4034] device veth0_macvtap entered promiscuous mode [ 51.407243][ T4034] device veth1_macvtap entered promiscuous mode [ 51.422887][ T4034] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.424904][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.429244][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.434308][ T4034] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.437909][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.442351][ T4034] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.444399][ T4034] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.447823][ T4034] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.449754][ T4034] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.786751][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.841043][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.848981][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.851997][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.859265][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.860962][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.863324][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 54.562837][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.833379][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.893539][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.968003][ T136] device hsr_slave_0 left promiscuous mode [ 57.987869][ T136] device hsr_slave_1 left promiscuous mode [ 58.106103][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.107949][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.110726][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.112406][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.114770][ T136] device bridge_slave_1 left promiscuous mode [ 58.117840][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.159369][ T136] device bridge_slave_0 left promiscuous mode [ 58.160874][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.286149][ T136] device veth1_macvtap left promiscuous mode [ 58.287649][ T136] device veth0_macvtap left promiscuous mode [ 58.289099][ T136] device veth1_vlan left promiscuous mode [ 58.290483][ T136] device veth0_vlan left promiscuous mode [ 58.494620][ T136] team0 (unregistering): Port device team_slave_1 removed [ 58.502774][ T136] team0 (unregistering): Port device team_slave_0 removed [ 58.516362][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.562159][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.724071][ T136] bond0 (unregistering): Released all slaves 1970/01/01 00:00:58 executed programs: 0 [ 59.139064][ T4163] chnl_net:caif_netlink_parms(): no params data found [ 59.186066][ T4163] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.187753][ T4163] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.190234][ T4163] device bridge_slave_0 entered promiscuous mode [ 59.193877][ T4163] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.196363][ T4163] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.198651][ T4163] device bridge_slave_1 entered promiscuous mode [ 59.214887][ T4163] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.228424][ T4163] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.244855][ T4163] team0: Port device team_slave_0 added [ 59.248413][ T4163] team0: Port device team_slave_1 added [ 59.264610][ T4163] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.266495][ T4163] 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. [ 59.272255][ T4163] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.276819][ T4163] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.278457][ T4163] 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. [ 59.284458][ T4163] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.347532][ T4163] device hsr_slave_0 entered promiscuous mode [ 59.366122][ T4163] device hsr_slave_1 entered promiscuous mode [ 60.198500][ T4163] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.249607][ T4163] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.289210][ T4163] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.339363][ T4163] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.450491][ T4163] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.469320][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.471546][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.484377][ T4163] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.497123][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.499462][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.501701][ T153] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.503192][ T153] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.518465][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.520864][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.523310][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.526863][ T153] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.528483][ T153] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.550933][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.553644][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.568812][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.571964][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.582831][ T4163] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.585087][ T4163] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.598763][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.600968][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.603709][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.616226][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.618875][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.622170][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.624515][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.634822][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.770093][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.772000][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.781506][ T4163] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.797745][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.800447][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.811396][ T4163] device veth0_vlan entered promiscuous mode [ 60.835359][ T1864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.838044][ T1864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.840975][ T1864] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.845136][ T1864] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.860619][ T4163] device veth1_vlan entered promiscuous mode [ 60.893838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.896297][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.902931][ T4163] device veth0_macvtap entered promiscuous mode [ 60.909773][ T4163] device veth1_macvtap entered promiscuous mode [ 60.912187][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.914508][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.916739][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.919196][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.942321][ T4163] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.951206][ T4163] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.953174][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.956998][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.959779][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.964508][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.978975][ T4163] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.980966][ T4163] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.982748][ T4163] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.984542][ T4163] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.065381][ T1864] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.066292][ T4276] Bluetooth: hci0: command 0x0409 tx timeout [ 61.067268][ T1864] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.071725][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.088968][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.090754][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.093470][ T1864] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 61.343931][ T4283] [ 61.344552][ T4283] ====================================================== [ 61.346047][ T4283] WARNING: possible circular locking dependency detected [ 61.347553][ T4283] 5.15.173-syzkaller #0 Not tainted [ 61.348695][ T4283] ------------------------------------------------------ [ 61.350286][ T4283] syz.0.15/4283 is trying to acquire lock: [ 61.351679][ T4283] ffff0000d7b1cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 61.354165][ T4283] [ 61.354165][ T4283] but task is already holding lock: [ 61.355810][ T4283] ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 61.358056][ T4283] [ 61.358056][ T4283] which lock already depends on the new lock. [ 61.358056][ T4283] [ 61.360288][ T4283] [ 61.360288][ T4283] the existing dependency chain (in reverse order) is: [ 61.362312][ T4283] [ 61.362312][ T4283] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 61.364080][ T4283] __mutex_lock_common+0x194/0x2154 [ 61.365321][ T4283] mutex_lock_nested+0xa4/0xf8 [ 61.366428][ T4283] rfkill_register+0x44/0x7a4 [ 61.367593][ T4283] hci_register_dev+0x3e0/0x880 [ 61.368814][ T4283] vhci_create_device+0x2c4/0x568 [ 61.370103][ T4283] vhci_write+0x318/0x3b8 [ 61.371215][ T4283] vfs_write+0x884/0xb44 [ 61.372386][ T4283] ksys_write+0x15c/0x26c [ 61.373488][ T4283] __arm64_sys_write+0x7c/0x90 [ 61.374659][ T4283] invoke_syscall+0x98/0x2b8 [ 61.375851][ T4283] el0_svc_common+0x138/0x258 [ 61.377122][ T4283] do_el0_svc+0x58/0x14c [ 61.378193][ T4283] el0_svc+0x7c/0x1f0 [ 61.379155][ T4283] el0t_64_sync_handler+0x84/0xe4 [ 61.380425][ T4283] el0t_64_sync+0x1a0/0x1a4 [ 61.381637][ T4283] [ 61.381637][ T4283] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 61.383317][ T4283] __mutex_lock_common+0x194/0x2154 [ 61.384568][ T4283] mutex_lock_nested+0xa4/0xf8 [ 61.385809][ T4283] vhci_send_frame+0x8c/0x10c [ 61.386942][ T4283] hci_send_frame+0x194/0x2f0 [ 61.388051][ T4283] hci_tx_work+0x9ac/0x16cc [ 61.389255][ T4283] process_one_work+0x790/0x11b8 [ 61.390539][ T4283] worker_thread+0x910/0x1034 [ 61.391703][ T4283] kthread+0x37c/0x45c [ 61.392737][ T4283] ret_from_fork+0x10/0x20 [ 61.393817][ T4283] [ 61.393817][ T4283] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 61.395889][ T4283] __flush_work+0xf8/0x1c0 [ 61.396976][ T4283] flush_work+0x24/0x38 [ 61.397941][ T4283] hci_dev_do_close+0x16c/0x1060 [ 61.399116][ T4283] hci_unregister_dev+0x248/0x4d4 [ 61.400387][ T4283] vhci_release+0x74/0xc4 [ 61.401462][ T4283] __fput+0x1c4/0x800 [ 61.402521][ T4283] ____fput+0x20/0x30 [ 61.403551][ T4283] task_work_run+0x130/0x1e4 [ 61.404704][ T4283] do_exit+0x670/0x20bc [ 61.405761][ T4283] do_group_exit+0x110/0x268 [ 61.406911][ T4283] get_signal+0x634/0x1550 [ 61.408043][ T4283] do_notify_resume+0x3d0/0x32b8 [ 61.409268][ T4283] el0_svc+0xfc/0x1f0 [ 61.410274][ T4283] el0t_64_sync_handler+0x84/0xe4 [ 61.411572][ T4283] el0t_64_sync+0x1a0/0x1a4 [ 61.412695][ T4283] [ 61.412695][ T4283] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 61.414388][ T4283] __mutex_lock_common+0x194/0x2154 [ 61.415595][ T4283] mutex_lock_nested+0xa4/0xf8 [ 61.416805][ T4283] bg_scan_update+0x9c/0x470 [ 61.418051][ T4283] process_one_work+0x790/0x11b8 [ 61.419282][ T4283] worker_thread+0x910/0x1034 [ 61.420475][ T4283] kthread+0x37c/0x45c [ 61.421503][ T4283] ret_from_fork+0x10/0x20 [ 61.422564][ T4283] [ 61.422564][ T4283] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 61.424854][ T4283] __lock_acquire+0x32d4/0x7638 [ 61.426051][ T4283] lock_acquire+0x240/0x77c [ 61.427158][ T4283] __flush_work+0xf8/0x1c0 [ 61.428218][ T4283] __cancel_work_timer+0x3ec/0x548 [ 61.429369][ T4283] cancel_work_sync+0x24/0x38 [ 61.430345][ T4283] hci_request_cancel_all+0xcc/0x2d0 [ 61.431643][ T4283] hci_dev_do_close+0x54/0x1060 [ 61.432750][ T4283] hci_rfkill_set_block+0xdc/0x1d0 [ 61.433943][ T4283] rfkill_set_block+0x18c/0x37c [ 61.435080][ T4283] rfkill_fop_write+0x594/0x750 [ 61.436218][ T4283] vfs_write+0x280/0xb44 [ 61.437248][ T4283] ksys_write+0x15c/0x26c [ 61.438332][ T4283] __arm64_sys_write+0x7c/0x90 [ 61.439468][ T4283] invoke_syscall+0x98/0x2b8 [ 61.440560][ T4283] el0_svc_common+0x138/0x258 [ 61.441770][ T4283] do_el0_svc+0x58/0x14c [ 61.442802][ T4283] el0_svc+0x7c/0x1f0 [ 61.443802][ T4283] el0t_64_sync_handler+0x84/0xe4 [ 61.444978][ T4283] el0t_64_sync+0x1a0/0x1a4 [ 61.446001][ T4283] [ 61.446001][ T4283] other info that might help us debug this: [ 61.446001][ T4283] [ 61.448370][ T4283] Chain exists of: [ 61.448370][ T4283] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 61.448370][ T4283] [ 61.451742][ T4283] Possible unsafe locking scenario: [ 61.451742][ T4283] [ 61.453219][ T4283] CPU0 CPU1 [ 61.454310][ T4283] ---- ---- [ 61.455546][ T4283] lock(rfkill_global_mutex); [ 61.456723][ T4283] lock(&data->open_mutex); [ 61.458329][ T4283] lock(rfkill_global_mutex); [ 61.459913][ T4283] lock((work_completion)(&hdev->bg_scan_update)); [ 61.461390][ T4283] [ 61.461390][ T4283] *** DEADLOCK *** [ 61.461390][ T4283] [ 61.463217][ T4283] 1 lock held by syz.0.15/4283: [ 61.464270][ T4283] #0: ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 61.466694][ T4283] [ 61.466694][ T4283] stack backtrace: [ 61.468021][ T4283] CPU: 0 PID: 4283 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 61.469822][ T4283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 61.472027][ T4283] Call trace: [ 61.472731][ T4283] dump_backtrace+0x0/0x530 [ 61.473786][ T4283] show_stack+0x2c/0x3c [ 61.474684][ T4283] dump_stack_lvl+0x108/0x170 [ 61.475780][ T4283] dump_stack+0x1c/0x58 [ 61.476704][ T4283] print_circular_bug+0x150/0x1b8 [ 61.477898][ T4283] check_noncircular+0x2cc/0x378 [ 61.479020][ T4283] __lock_acquire+0x32d4/0x7638 [ 61.480120][ T4283] lock_acquire+0x240/0x77c [ 61.481111][ T4283] __flush_work+0xf8/0x1c0 [ 61.482111][ T4283] __cancel_work_timer+0x3ec/0x548 [ 61.483141][ T4283] cancel_work_sync+0x24/0x38 [ 61.484200][ T4283] hci_request_cancel_all+0xcc/0x2d0 [ 61.485437][ T4283] hci_dev_do_close+0x54/0x1060 [ 61.486561][ T4283] hci_rfkill_set_block+0xdc/0x1d0 [ 61.487768][ T4283] rfkill_set_block+0x18c/0x37c [ 61.488838][ T4283] rfkill_fop_write+0x594/0x750 [ 61.489920][ T4283] vfs_write+0x280/0xb44 [ 61.490875][ T4283] ksys_write+0x15c/0x26c [ 61.491877][ T4283] __arm64_sys_write+0x7c/0x90 [ 61.493087][ T4283] invoke_syscall+0x98/0x2b8 [ 61.494169][ T4283] el0_svc_common+0x138/0x258 [ 61.495212][ T4283] do_el0_svc+0x58/0x14c [ 61.496108][ T4283] el0_svc+0x7c/0x1f0 [ 61.496983][ T4283] el0t_64_sync_handler+0x84/0xe4 [ 61.498051][ T4283] el0t_64_sync+0x1a0/0x1a4