Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. 1970/01/01 00:00:44 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:45 parsed 1 programs syzkaller login: [ 47.690678][ T4027] cgroup: Unknown subsys name 'net' [ 47.943389][ T4027] cgroup: Unknown subsys name 'rlimit' [ 48.318862][ T4027] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 56.014249][ T4060] chnl_net:caif_netlink_parms(): no params data found [ 56.055439][ T4060] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.057330][ T4060] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.059728][ T4060] device bridge_slave_0 entered promiscuous mode [ 56.063985][ T4060] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.065963][ T4060] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.068662][ T4060] device bridge_slave_1 entered promiscuous mode [ 56.084660][ T4060] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.089093][ T4060] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.109236][ T4060] team0: Port device team_slave_0 added [ 56.112345][ T4060] team0: Port device team_slave_1 added [ 56.126617][ T4060] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.128449][ T4060] 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. [ 56.134688][ T4060] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.187944][ T4060] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.189732][ T4060] 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. [ 56.196045][ T4060] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.249584][ T4060] device hsr_slave_0 entered promiscuous mode [ 56.298823][ T4060] device hsr_slave_1 entered promiscuous mode [ 56.435185][ T4060] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.530840][ T4060] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.569765][ T4060] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.629649][ T4060] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.699206][ T4060] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.701114][ T4060] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.703318][ T4060] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.704986][ T4060] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.754090][ T4060] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.763883][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.770597][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.774287][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.778984][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.789082][ T4060] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.800833][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.803367][ T1635] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.805263][ T1635] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.807978][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.810305][ T1635] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.811980][ T1635] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.824148][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.826973][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.843867][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.846471][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.850139][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.854920][ T4060] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.927099][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.930270][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.939355][ T4060] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.953642][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.965634][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.971992][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.974401][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.978604][ T4060] device veth0_vlan entered promiscuous mode [ 56.984523][ T4060] device veth1_vlan entered promiscuous mode [ 56.989473][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.005702][ T4060] device veth0_macvtap entered promiscuous mode [ 57.009350][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.011896][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.015967][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.020798][ T4060] device veth1_macvtap entered promiscuous mode [ 57.032776][ T4060] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.034682][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.036949][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.040571][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.045121][ T4060] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.048155][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.052258][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.056571][ T4060] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.060685][ T4060] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.062897][ T4060] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.064992][ T4060] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.481639][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.626456][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.629051][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.632444][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.651214][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.653140][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.655787][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:58 executed programs: 0 [ 58.558729][ T4106] chnl_net:caif_netlink_parms(): no params data found [ 58.593618][ T4106] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.595588][ T4106] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.598747][ T4106] device bridge_slave_0 entered promiscuous mode [ 58.602424][ T4106] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.604185][ T4106] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.606548][ T4106] device bridge_slave_1 entered promiscuous mode [ 58.622694][ T4106] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.627487][ T4106] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.642357][ T4106] team0: Port device team_slave_0 added [ 58.646010][ T4106] team0: Port device team_slave_1 added [ 58.660505][ T4106] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.662338][ T4106] 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. [ 58.670118][ T4106] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.676174][ T4106] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.678254][ T4106] 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. [ 58.684882][ T4106] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.729335][ T4106] device hsr_slave_0 entered promiscuous mode [ 58.778007][ T4106] device hsr_slave_1 entered promiscuous mode [ 58.817341][ T4106] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 58.819354][ T4106] Cannot create hsr debugfs directory [ 60.174912][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.518320][ T4066] Bluetooth: hci0: command 0x0409 tx timeout [ 62.503735][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.565514][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.587554][ T1534] Bluetooth: hci0: command 0x041b tx timeout [ 63.527724][ T4106] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.610991][ T4106] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.680334][ T4106] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.739385][ T4106] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.839375][ T4106] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.846796][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.850412][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.855104][ T4106] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.880356][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.883040][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.885847][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.887775][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.891396][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.896214][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.899319][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.901695][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.903452][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.911292][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.939886][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.944843][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.949597][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.952477][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.960079][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.962950][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.967112][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.971250][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.987308][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.989847][ T1635] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.993733][ T4106] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.067121][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.069529][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.075710][ T4106] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.089905][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.092618][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.105541][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.108225][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.110750][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.113050][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.116916][ T4106] device veth0_vlan entered promiscuous mode [ 64.125866][ T4106] device veth1_vlan entered promiscuous mode [ 64.142559][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.145027][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.148124][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.150956][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.155611][ T4106] device veth0_macvtap entered promiscuous mode [ 64.161209][ T4106] device veth1_macvtap entered promiscuous mode [ 64.173179][ T4106] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 64.175974][ T4106] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 64.180609][ T4106] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.182799][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.185320][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.189338][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.193084][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.197933][ T4106] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 64.200520][ T4106] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 64.203798][ T4106] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.205795][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.208844][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.213843][ T4106] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.215952][ T4106] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.218438][ T4106] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.220539][ T4106] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.286807][ T1635] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.292581][ T1635] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.302295][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.306594][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.310617][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.313286][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.472392][ T4155] [ 64.473026][ T4155] ====================================================== [ 64.474724][ T4155] WARNING: possible circular locking dependency detected [ 64.476482][ T4155] 5.15.178-syzkaller #0 Not tainted [ 64.477868][ T4155] ------------------------------------------------------ [ 64.479503][ T4155] syz.0.16/4155 is trying to acquire lock: [ 64.480993][ T4155] ffff0000dbb6cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 64.483843][ T4155] [ 64.483843][ T4155] but task is already holding lock: [ 64.485708][ T4155] ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 64.487857][ T4155] [ 64.487857][ T4155] which lock already depends on the new lock. [ 64.487857][ T4155] [ 64.490291][ T4155] [ 64.490291][ T4155] the existing dependency chain (in reverse order) is: [ 64.492597][ T4155] [ 64.492597][ T4155] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 64.494576][ T4155] __mutex_lock_common+0x194/0x2154 [ 64.495979][ T4155] mutex_lock_nested+0xa4/0xf8 [ 64.497259][ T4155] rfkill_register+0x44/0x7a4 [ 64.498629][ T4155] hci_register_dev+0x3e0/0x880 [ 64.499963][ T4155] vhci_create_device+0x2c4/0x568 [ 64.501425][ T4155] vhci_write+0x318/0x3b8 [ 64.502656][ T4155] vfs_write+0x884/0xb44 [ 64.503874][ T4155] ksys_write+0x15c/0x26c [ 64.505081][ T4155] __arm64_sys_write+0x7c/0x90 [ 64.506498][ T4155] invoke_syscall+0x98/0x2b8 [ 64.507837][ T4155] el0_svc_common+0x138/0x258 [ 64.509231][ T4155] do_el0_svc+0x58/0x14c [ 64.510509][ T4155] el0_svc+0x7c/0x1f0 [ 64.511717][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 64.513108][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 64.514404][ T4155] [ 64.514404][ T4155] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 64.516333][ T4155] __mutex_lock_common+0x194/0x2154 [ 64.517702][ T4155] mutex_lock_nested+0xa4/0xf8 [ 64.518951][ T4155] vhci_send_frame+0x8c/0x10c [ 64.520227][ T4155] hci_send_frame+0x194/0x2f0 [ 64.521488][ T4155] hci_tx_work+0x9ac/0x16cc [ 64.522747][ T4155] process_one_work+0x790/0x11b8 [ 64.524033][ T4155] worker_thread+0x910/0x1034 [ 64.525252][ T4155] kthread+0x37c/0x45c [ 64.526316][ T4155] ret_from_fork+0x10/0x20 [ 64.527413][ T4155] [ 64.527413][ T4155] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 64.529514][ T4155] __flush_work+0xf8/0x1c0 [ 64.530583][ T4155] flush_work+0x24/0x38 [ 64.531675][ T4155] hci_dev_do_close+0x16c/0x1060 [ 64.532883][ T4155] hci_unregister_dev+0x248/0x4d4 [ 64.534118][ T4155] vhci_release+0x74/0xc4 [ 64.535177][ T4155] __fput+0x1c4/0x800 [ 64.536171][ T4155] ____fput+0x20/0x30 [ 64.537173][ T4155] task_work_run+0x130/0x1e4 [ 64.538335][ T4155] do_exit+0x670/0x20bc [ 64.539389][ T4155] do_group_exit+0x110/0x268 [ 64.540535][ T4155] get_signal+0x634/0x1550 [ 64.541648][ T4155] do_notify_resume+0x3d0/0x32b8 [ 64.542936][ T4155] el0_svc+0xfc/0x1f0 [ 64.544066][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 64.545418][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 64.546724][ T4155] [ 64.546724][ T4155] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 64.548812][ T4155] __mutex_lock_common+0x194/0x2154 [ 64.550326][ T4155] mutex_lock_nested+0xa4/0xf8 [ 64.551686][ T4155] bg_scan_update+0x9c/0x470 [ 64.552965][ T4155] process_one_work+0x790/0x11b8 [ 64.554457][ T4155] worker_thread+0x910/0x1034 [ 64.555819][ T4155] kthread+0x37c/0x45c [ 64.556986][ T4155] ret_from_fork+0x10/0x20 [ 64.558218][ T4155] [ 64.558218][ T4155] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 64.560702][ T4155] __lock_acquire+0x32d4/0x7638 [ 64.561989][ T4155] lock_acquire+0x240/0x77c [ 64.563373][ T4155] __flush_work+0xf8/0x1c0 [ 64.564591][ T4155] __cancel_work_timer+0x3ec/0x548 [ 64.566012][ T4155] cancel_work_sync+0x24/0x38 [ 64.567430][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 64.568831][ T4155] hci_dev_do_close+0x54/0x1060 [ 64.570054][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 64.571404][ T4155] rfkill_set_block+0x18c/0x37c [ 64.572614][ T4155] rfkill_fop_write+0x594/0x750 [ 64.573792][ T4155] vfs_write+0x280/0xb44 [ 64.574894][ T4155] ksys_write+0x15c/0x26c [ 64.576088][ T4155] __arm64_sys_write+0x7c/0x90 [ 64.577377][ T4155] invoke_syscall+0x98/0x2b8 [ 64.578608][ T4155] el0_svc_common+0x138/0x258 [ 64.579956][ T4155] do_el0_svc+0x58/0x14c [ 64.581178][ T4155] el0_svc+0x7c/0x1f0 [ 64.582386][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 64.583783][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 64.584886][ T4155] [ 64.584886][ T4155] other info that might help us debug this: [ 64.584886][ T4155] [ 64.587349][ T4155] Chain exists of: [ 64.587349][ T4155] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 64.587349][ T4155] [ 64.591003][ T4155] Possible unsafe locking scenario: [ 64.591003][ T4155] [ 64.592744][ T4155] CPU0 CPU1 [ 64.593970][ T4155] ---- ---- [ 64.595303][ T4155] lock(rfkill_global_mutex); [ 64.596640][ T4155] lock(&data->open_mutex); [ 64.598429][ T4155] lock(rfkill_global_mutex); [ 64.600143][ T4155] lock((work_completion)(&hdev->bg_scan_update)); [ 64.601814][ T4155] [ 64.601814][ T4155] *** DEADLOCK *** [ 64.601814][ T4155] [ 64.603725][ T4155] 1 lock held by syz.0.16/4155: [ 64.604886][ T4155] #0: ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 64.607167][ T4155] [ 64.607167][ T4155] stack backtrace: [ 64.608539][ T4155] CPU: 1 PID: 4155 Comm: syz.0.16 Not tainted 5.15.178-syzkaller #0 [ 64.610539][ T4155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 64.613214][ T4155] Call trace: [ 64.614093][ T4155] dump_backtrace+0x0/0x530 [ 64.615285][ T4155] show_stack+0x2c/0x3c [ 64.616405][ T4155] dump_stack_lvl+0x108/0x170 [ 64.617626][ T4155] dump_stack+0x1c/0x58 [ 64.618764][ T4155] print_circular_bug+0x150/0x1b8 [ 64.619901][ T4155] check_noncircular+0x2cc/0x378 [ 64.621032][ T4155] __lock_acquire+0x32d4/0x7638 [ 64.622171][ T4155] lock_acquire+0x240/0x77c [ 64.623386][ T4155] __flush_work+0xf8/0x1c0 [ 64.624404][ T4155] __cancel_work_timer+0x3ec/0x548 [ 64.625578][ T4155] cancel_work_sync+0x24/0x38 [ 64.626697][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 64.627870][ T4155] hci_dev_do_close+0x54/0x1060 [ 64.628987][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 64.630362][ T4155] rfkill_set_block+0x18c/0x37c [ 64.631588][ T4155] rfkill_fop_write+0x594/0x750 [ 64.632851][ T4155] vfs_write+0x280/0xb44 [ 64.633964][ T4155] ksys_write+0x15c/0x26c [ 64.635061][ T4155] __arm64_sys_write+0x7c/0x90 [ 64.636385][ T4155] invoke_syscall+0x98/0x2b8 [ 64.637630][ T4155] el0_svc_common+0x138/0x258 [ 64.638770][ T4155] do_el0_svc+0x58/0x14c [ 64.639855][ T4155] el0_svc+0x7c/0x1f0 [ 64.640923][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 64.642295][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 64.667638][ T4066] Bluetooth: hci0: command 0x040f tx timeout