Warning: Permanently added '10.128.0.247' (ED25519) to the list of known hosts. 1970/01/01 00:00:46 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:47 parsed 1 programs [ 50.258262][ T4027] cgroup: Unknown subsys name 'net' [ 50.474804][ T4027] cgroup: Unknown subsys name 'rlimit' [ 50.853214][ T4027] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 58.130136][ T4039] chnl_net:caif_netlink_parms(): no params data found [ 58.177922][ T4039] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.180024][ T4039] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.182681][ T4039] device bridge_slave_0 entered promiscuous mode [ 58.187135][ T4039] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.189202][ T4039] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.191594][ T4039] device bridge_slave_1 entered promiscuous mode [ 58.207123][ T4039] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.211316][ T4039] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.230119][ T4039] team0: Port device team_slave_0 added [ 58.233164][ T4039] team0: Port device team_slave_1 added [ 58.247551][ T4039] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.249545][ T4039] 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. [ 58.256329][ T4039] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.264300][ T4039] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.266254][ T4039] 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. [ 58.273096][ T4039] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.350714][ T4039] device hsr_slave_0 entered promiscuous mode [ 58.408803][ T4039] device hsr_slave_1 entered promiscuous mode [ 58.538920][ T4039] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.594514][ T4039] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.645969][ T4039] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.680898][ T4039] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.737891][ T4039] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.740053][ T4039] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.742375][ T4039] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.744270][ T4039] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.789509][ T4039] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.800112][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.804379][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.807900][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.811482][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.820178][ T4039] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.826132][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.830577][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.832541][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.901506][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.904246][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.906094][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.909752][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.913198][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.925286][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.928160][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.937293][ T4039] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.942170][ T4039] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.945514][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.019457][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.021568][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.026448][ T4039] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.043888][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.058110][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.063022][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.065971][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.071911][ T4039] device veth0_vlan entered promiscuous mode [ 59.080656][ T4039] device veth1_vlan entered promiscuous mode [ 59.100302][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.102946][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.105733][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.113043][ T4039] device veth0_macvtap entered promiscuous mode [ 59.118067][ T4039] device veth1_macvtap entered promiscuous mode [ 59.129621][ T4039] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.131792][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.134480][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.141721][ T4039] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.146913][ T4039] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.150103][ T4039] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.152321][ T4039] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.154622][ T4039] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.158926][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.161625][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.525305][ T623] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.527657][ T623] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.532186][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.556239][ T623] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.559010][ T623] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.561791][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.402510][ T308] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:01 executed programs: 0 [ 61.528307][ T4108] chnl_net:caif_netlink_parms(): no params data found [ 61.564868][ T4108] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.566915][ T4108] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.569671][ T4108] device bridge_slave_0 entered promiscuous mode [ 61.573876][ T4108] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.575753][ T4108] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.578245][ T4108] device bridge_slave_1 entered promiscuous mode [ 61.594204][ T4108] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.599098][ T4108] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.614225][ T4108] team0: Port device team_slave_0 added [ 61.617866][ T4108] team0: Port device team_slave_1 added [ 61.630503][ T4108] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.632450][ T4108] 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. [ 61.639661][ T4108] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.643658][ T4108] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.645346][ T4108] 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. [ 61.652078][ T4108] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.730612][ T4108] device hsr_slave_0 entered promiscuous mode [ 61.768766][ T4108] device hsr_slave_1 entered promiscuous mode [ 61.818612][ T4108] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.821031][ T4108] Cannot create hsr debugfs directory [ 62.186122][ T308] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.489252][ T4029] Bluetooth: hci0: command 0x0409 tx timeout [ 64.295171][ T308] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.356645][ T308] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.309854][ T4108] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.361341][ T4108] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.403669][ T4108] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.450912][ T4108] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.558786][ T1535] Bluetooth: hci0: command 0x041b tx timeout [ 65.574426][ T4108] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.583298][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.585906][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.592353][ T4108] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.597212][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.600469][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.602966][ T431] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.605063][ T431] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.607523][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.614104][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.616912][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.620163][ T431] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.622118][ T431] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.626913][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.632389][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.637620][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.642089][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.644956][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.652136][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.655348][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.660073][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.662799][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.668802][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.671423][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.675860][ T4108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.747965][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.750228][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.756641][ T4108] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.769964][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.772877][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.784795][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.787408][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.791894][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.794651][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.819457][ T4108] device veth0_vlan entered promiscuous mode [ 65.825838][ T4108] device veth1_vlan entered promiscuous mode [ 65.841217][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.843777][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.846154][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.851359][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.856000][ T4108] device veth0_macvtap entered promiscuous mode [ 65.862023][ T4108] device veth1_macvtap entered promiscuous mode [ 65.871749][ T4108] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 65.874690][ T4108] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.878810][ T4108] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.881273][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.884776][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.887620][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.890413][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.894769][ T4108] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 65.897536][ T4108] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.901300][ T4108] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.903416][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.906171][ T623] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.913121][ T4108] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.915350][ T4108] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.917643][ T4108] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.920449][ T4108] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.959987][ T623] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.965980][ T623] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.975082][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.977274][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.983177][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.987858][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.018303][ T4158] [ 66.018904][ T4158] ====================================================== [ 66.020769][ T4158] WARNING: possible circular locking dependency detected [ 66.022534][ T4158] 5.15.178-syzkaller #0 Not tainted [ 66.023867][ T4158] ------------------------------------------------------ [ 66.025683][ T4158] syz.0.16/4158 is trying to acquire lock: [ 66.027189][ T4158] ffff0000d4eccc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 66.030173][ T4158] [ 66.030173][ T4158] but task is already holding lock: [ 66.032129][ T4158] ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.034611][ T4158] [ 66.034611][ T4158] which lock already depends on the new lock. [ 66.034611][ T4158] [ 66.037347][ T4158] [ 66.037347][ T4158] the existing dependency chain (in reverse order) is: [ 66.039695][ T4158] [ 66.039695][ T4158] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.041835][ T4158] __mutex_lock_common+0x194/0x2154 [ 66.043367][ T4158] mutex_lock_nested+0xa4/0xf8 [ 66.044760][ T4158] rfkill_register+0x44/0x7a4 [ 66.046124][ T4158] hci_register_dev+0x3e0/0x880 [ 66.047474][ T4158] vhci_create_device+0x2c4/0x568 [ 66.048912][ T4158] vhci_write+0x318/0x3b8 [ 66.050183][ T4158] vfs_write+0x884/0xb44 [ 66.051432][ T4158] ksys_write+0x15c/0x26c [ 66.052679][ T4158] __arm64_sys_write+0x7c/0x90 [ 66.054040][ T4158] invoke_syscall+0x98/0x2b8 [ 66.055335][ T4158] el0_svc_common+0x138/0x258 [ 66.056700][ T4158] do_el0_svc+0x58/0x14c [ 66.057882][ T4158] el0_svc+0x7c/0x1f0 [ 66.059072][ T4158] el0t_64_sync_handler+0x84/0xe4 [ 66.060554][ T4158] el0t_64_sync+0x1a0/0x1a4 [ 66.061908][ T4158] [ 66.061908][ T4158] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.063938][ T4158] __mutex_lock_common+0x194/0x2154 [ 66.065398][ T4158] mutex_lock_nested+0xa4/0xf8 [ 66.066762][ T4158] vhci_send_frame+0x8c/0x10c [ 66.068104][ T4158] hci_send_frame+0x194/0x2f0 [ 66.069458][ T4158] hci_tx_work+0x9ac/0x16cc [ 66.070766][ T4158] process_one_work+0x790/0x11b8 [ 66.072184][ T4158] worker_thread+0x910/0x1034 [ 66.073443][ T4158] kthread+0x37c/0x45c [ 66.074639][ T4158] ret_from_fork+0x10/0x20 [ 66.075870][ T4158] [ 66.075870][ T4158] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 66.078215][ T4158] __flush_work+0xf8/0x1c0 [ 66.079517][ T4158] flush_work+0x24/0x38 [ 66.080717][ T4158] hci_dev_do_close+0x16c/0x1060 [ 66.082125][ T4158] hci_unregister_dev+0x248/0x4d4 [ 66.083621][ T4158] vhci_release+0x74/0xc4 [ 66.084876][ T4158] __fput+0x1c4/0x800 [ 66.086038][ T4158] ____fput+0x20/0x30 [ 66.087253][ T4158] task_work_run+0x130/0x1e4 [ 66.088521][ T4158] do_exit+0x670/0x20bc [ 66.089641][ T4158] do_group_exit+0x110/0x268 [ 66.090907][ T4158] get_signal+0x634/0x1550 [ 66.092126][ T4158] do_notify_resume+0x3d0/0x32b8 [ 66.093446][ T4158] el0_svc+0xfc/0x1f0 [ 66.094578][ T4158] el0t_64_sync_handler+0x84/0xe4 [ 66.095951][ T4158] el0t_64_sync+0x1a0/0x1a4 [ 66.097174][ T4158] [ 66.097174][ T4158] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 66.099098][ T4158] __mutex_lock_common+0x194/0x2154 [ 66.100648][ T4158] mutex_lock_nested+0xa4/0xf8 [ 66.101985][ T4158] bg_scan_update+0x9c/0x470 [ 66.103245][ T4158] process_one_work+0x790/0x11b8 [ 66.104571][ T4158] worker_thread+0x910/0x1034 [ 66.105880][ T4158] kthread+0x37c/0x45c [ 66.107002][ T4158] ret_from_fork+0x10/0x20 [ 66.108268][ T4158] [ 66.108268][ T4158] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.110727][ T4158] __lock_acquire+0x32d4/0x7638 [ 66.112034][ T4158] lock_acquire+0x240/0x77c [ 66.113283][ T4158] __flush_work+0xf8/0x1c0 [ 66.114448][ T4158] __cancel_work_timer+0x3ec/0x548 [ 66.115858][ T4158] cancel_work_sync+0x24/0x38 [ 66.117125][ T4158] hci_request_cancel_all+0xcc/0x2d0 [ 66.118591][ T4158] hci_dev_do_close+0x54/0x1060 [ 66.119926][ T4158] hci_rfkill_set_block+0xdc/0x1d0 [ 66.121356][ T4158] rfkill_set_block+0x18c/0x37c [ 66.122708][ T4158] rfkill_fop_write+0x594/0x750 [ 66.124052][ T4158] vfs_write+0x280/0xb44 [ 66.125271][ T4158] ksys_write+0x15c/0x26c [ 66.126454][ T4158] __arm64_sys_write+0x7c/0x90 [ 66.127730][ T4158] invoke_syscall+0x98/0x2b8 [ 66.129004][ T4158] el0_svc_common+0x138/0x258 [ 66.130407][ T4158] do_el0_svc+0x58/0x14c [ 66.131653][ T4158] el0_svc+0x7c/0x1f0 [ 66.132824][ T4158] el0t_64_sync_handler+0x84/0xe4 [ 66.134305][ T4158] el0t_64_sync+0x1a0/0x1a4 [ 66.135574][ T4158] [ 66.135574][ T4158] other info that might help us debug this: [ 66.135574][ T4158] [ 66.138253][ T4158] Chain exists of: [ 66.138253][ T4158] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.138253][ T4158] [ 66.142399][ T4158] Possible unsafe locking scenario: [ 66.142399][ T4158] [ 66.144318][ T4158] CPU0 CPU1 [ 66.145709][ T4158] ---- ---- [ 66.147129][ T4158] lock(rfkill_global_mutex); [ 66.148384][ T4158] lock(&data->open_mutex); [ 66.150230][ T4158] lock(rfkill_global_mutex); [ 66.152095][ T4158] lock((work_completion)(&hdev->bg_scan_update)); [ 66.153804][ T4158] [ 66.153804][ T4158] *** DEADLOCK *** [ 66.153804][ T4158] [ 66.155893][ T4158] 1 lock held by syz.0.16/4158: [ 66.157104][ T4158] #0: ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.159678][ T4158] [ 66.159678][ T4158] stack backtrace: [ 66.161176][ T4158] CPU: 1 PID: 4158 Comm: syz.0.16 Not tainted 5.15.178-syzkaller #0 [ 66.163158][ T4158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 66.165708][ T4158] Call trace: [ 66.166506][ T4158] dump_backtrace+0x0/0x530 [ 66.167747][ T4158] show_stack+0x2c/0x3c [ 66.168814][ T4158] dump_stack_lvl+0x108/0x170 [ 66.170036][ T4158] dump_stack+0x1c/0x58 [ 66.171108][ T4158] print_circular_bug+0x150/0x1b8 [ 66.172458][ T4158] check_noncircular+0x2cc/0x378 [ 66.173733][ T4158] __lock_acquire+0x32d4/0x7638 [ 66.175017][ T4158] lock_acquire+0x240/0x77c [ 66.176179][ T4158] __flush_work+0xf8/0x1c0 [ 66.177383][ T4158] __cancel_work_timer+0x3ec/0x548 [ 66.178742][ T4158] cancel_work_sync+0x24/0x38 [ 66.179952][ T4158] hci_request_cancel_all+0xcc/0x2d0 [ 66.181332][ T4158] hci_dev_do_close+0x54/0x1060 [ 66.182573][ T4158] hci_rfkill_set_block+0xdc/0x1d0 [ 66.183947][ T4158] rfkill_set_block+0x18c/0x37c [ 66.185165][ T4158] rfkill_fop_write+0x594/0x750 [ 66.186369][ T4158] vfs_write+0x280/0xb44 [ 66.187458][ T4158] ksys_write+0x15c/0x26c [ 66.188575][ T4158] __arm64_sys_write+0x7c/0x90 [ 66.189825][ T4158] invoke_syscall+0x98/0x2b8 [ 66.190995][ T4158] el0_svc_common+0x138/0x258 [ 66.192182][ T4158] do_el0_svc+0x58/0x14c [ 66.193309][ T4158] el0_svc+0x7c/0x1f0 [ 66.194345][ T4158] el0t_64_sync_handler+0x84/0xe4 [ 66.195651][ T4158] el0t_64_sync+0x1a0/0x1a4