Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. 1970/01/01 00:00:44 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:46 parsed 1 programs syzkaller login: [ 48.521197][ T4027] cgroup: Unknown subsys name 'net' [ 48.762483][ T4027] cgroup: Unknown subsys name 'rlimit' [ 49.103912][ T4027] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 57.669861][ T4052] chnl_net:caif_netlink_parms(): no params data found [ 57.712088][ T4052] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.714004][ T4052] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.717167][ T4052] device bridge_slave_0 entered promiscuous mode [ 57.721595][ T4052] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.723431][ T4052] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.725978][ T4052] device bridge_slave_1 entered promiscuous mode [ 57.742704][ T4052] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.747200][ T4052] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.765415][ T4052] team0: Port device team_slave_0 added [ 57.768831][ T4052] team0: Port device team_slave_1 added [ 57.783130][ T4052] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.784871][ T4052] 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. [ 57.792230][ T4052] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.797634][ T4052] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.799428][ T4052] 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. [ 57.806020][ T4052] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.869046][ T4052] device hsr_slave_0 entered promiscuous mode [ 57.906622][ T4052] device hsr_slave_1 entered promiscuous mode [ 58.061502][ T4052] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.089742][ T4052] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.143304][ T4052] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.179241][ T4052] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.283330][ T4052] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.285279][ T4052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.287850][ T4052] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.289798][ T4052] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.341857][ T4052] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.352397][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.358431][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.361385][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.364483][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.375866][ T4052] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.382849][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.385426][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.387428][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.397373][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.400340][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.402200][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.420299][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.423679][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.433078][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.439592][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.451692][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.458331][ T4052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.530646][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.532868][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.540261][ T4052] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.553315][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.566755][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.569567][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.571989][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.578210][ T4052] device veth0_vlan entered promiscuous mode [ 58.584823][ T4052] device veth1_vlan entered promiscuous mode [ 58.600822][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.603494][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.606168][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.612763][ T4052] device veth0_macvtap entered promiscuous mode [ 58.619249][ T4052] device veth1_macvtap entered promiscuous mode [ 58.632334][ T4052] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.634458][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.638733][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.644573][ T4052] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.648964][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.652114][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.656152][ T4052] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.659585][ T4052] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.661856][ T4052] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.664016][ T4052] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.367855][ T1614] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.370103][ T1614] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.372973][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.399557][ T1614] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.401874][ T1614] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.404816][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.752736][ T153] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:00 executed programs: 0 [ 60.677232][ T4107] chnl_net:caif_netlink_parms(): no params data found [ 60.714424][ T4107] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.716619][ T4107] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.719244][ T4107] device bridge_slave_0 entered promiscuous mode [ 60.722845][ T4107] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.724699][ T4107] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.727758][ T4107] device bridge_slave_1 entered promiscuous mode [ 60.742868][ T4107] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.748530][ T4107] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.763994][ T4107] team0: Port device team_slave_0 added [ 60.770200][ T4107] team0: Port device team_slave_1 added [ 60.783029][ T4107] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.784839][ T4107] 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. [ 60.791883][ T4107] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.796970][ T4107] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.798712][ T4107] 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. [ 60.805152][ T4107] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.868470][ T4107] device hsr_slave_0 entered promiscuous mode [ 60.916744][ T4107] device hsr_slave_1 entered promiscuous mode [ 60.956473][ T4107] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.958628][ T4107] Cannot create hsr debugfs directory [ 61.573965][ T153] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.597017][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 63.793061][ T153] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.855844][ T153] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.676467][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 64.786353][ T4107] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.828773][ T4107] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.878433][ T4107] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.918796][ T4107] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.021347][ T4107] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.029345][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.031866][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.037182][ T4107] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.041931][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.044905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.047665][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.049446][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.055316][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.058575][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.061487][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.064070][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.066100][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.071386][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.082538][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.085503][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.088900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.091634][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.099610][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.102457][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.108285][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.111069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.117515][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.120193][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.124150][ T4107] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.241149][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.243168][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.249782][ T4107] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.263120][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.265889][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.281680][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.284526][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.288102][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.290544][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.294118][ T4107] device veth0_vlan entered promiscuous mode [ 65.302576][ T4107] device veth1_vlan entered promiscuous mode [ 65.319783][ T4107] device veth0_macvtap entered promiscuous mode [ 65.322313][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.324871][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.327877][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.331000][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.333741][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.341452][ T4107] device veth1_macvtap entered promiscuous mode [ 65.352478][ T4107] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 65.355354][ T4107] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.360429][ T4107] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.362494][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.365079][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.369273][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.373731][ T4107] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 65.377150][ T4107] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.381175][ T4107] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.383290][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.385889][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.390985][ T4107] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.393228][ T4107] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.395508][ T4107] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.398331][ T4107] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.440978][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.446802][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.451485][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.459588][ T1614] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.461738][ T1614] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.464741][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.665291][ T4159] [ 65.666008][ T4159] ====================================================== [ 65.667955][ T4159] WARNING: possible circular locking dependency detected [ 65.669763][ T4159] 5.15.178-syzkaller #0 Not tainted [ 65.671173][ T4159] ------------------------------------------------------ [ 65.672911][ T4159] syz.0.16/4159 is trying to acquire lock: [ 65.674323][ T4159] ffff0000d4880c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 65.677063][ T4159] [ 65.677063][ T4159] but task is already holding lock: [ 65.678863][ T4159] ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 65.681438][ T4159] [ 65.681438][ T4159] which lock already depends on the new lock. [ 65.681438][ T4159] [ 65.683962][ T4159] [ 65.683962][ T4159] the existing dependency chain (in reverse order) is: [ 65.686205][ T4159] [ 65.686205][ T4159] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 65.688010][ T4159] __mutex_lock_common+0x194/0x2154 [ 65.689443][ T4159] mutex_lock_nested+0xa4/0xf8 [ 65.690819][ T4159] rfkill_register+0x44/0x7a4 [ 65.692109][ T4159] hci_register_dev+0x3e0/0x880 [ 65.693464][ T4159] vhci_create_device+0x2c4/0x568 [ 65.694909][ T4159] vhci_write+0x318/0x3b8 [ 65.696170][ T4159] vfs_write+0x884/0xb44 [ 65.697324][ T4159] ksys_write+0x15c/0x26c [ 65.698591][ T4159] __arm64_sys_write+0x7c/0x90 [ 65.699933][ T4159] invoke_syscall+0x98/0x2b8 [ 65.701263][ T4159] el0_svc_common+0x138/0x258 [ 65.702615][ T4159] do_el0_svc+0x58/0x14c [ 65.703790][ T4159] el0_svc+0x7c/0x1f0 [ 65.704968][ T4159] el0t_64_sync_handler+0x84/0xe4 [ 65.706449][ T4159] el0t_64_sync+0x1a0/0x1a4 [ 65.707717][ T4159] [ 65.707717][ T4159] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 65.709629][ T4159] __mutex_lock_common+0x194/0x2154 [ 65.711020][ T4159] mutex_lock_nested+0xa4/0xf8 [ 65.712357][ T4159] vhci_send_frame+0x8c/0x10c [ 65.713657][ T4159] hci_send_frame+0x194/0x2f0 [ 65.715023][ T4159] hci_tx_work+0x9ac/0x16cc [ 65.716271][ T4159] process_one_work+0x790/0x11b8 [ 65.717687][ T4159] worker_thread+0x910/0x1034 [ 65.718995][ T4159] kthread+0x37c/0x45c [ 65.720151][ T4159] ret_from_fork+0x10/0x20 [ 65.721431][ T4159] [ 65.721431][ T4159] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 65.723748][ T4159] __flush_work+0xf8/0x1c0 [ 65.724986][ T4159] flush_work+0x24/0x38 [ 65.726179][ T4159] hci_dev_do_close+0x16c/0x1060 [ 65.727545][ T4159] hci_unregister_dev+0x248/0x4d4 [ 65.728966][ T4159] vhci_release+0x74/0xc4 [ 65.730239][ T4159] __fput+0x1c4/0x800 [ 65.731386][ T4159] ____fput+0x20/0x30 [ 65.732561][ T4159] task_work_run+0x130/0x1e4 [ 65.733835][ T4159] do_exit+0x670/0x20bc [ 65.735002][ T4159] do_group_exit+0x110/0x268 [ 65.736335][ T4159] get_signal+0x634/0x1550 [ 65.737594][ T4159] do_notify_resume+0x3d0/0x32b8 [ 65.738993][ T4159] el0_svc+0xfc/0x1f0 [ 65.740114][ T4159] el0t_64_sync_handler+0x84/0xe4 [ 65.741611][ T4159] el0t_64_sync+0x1a0/0x1a4 [ 65.742800][ T4159] [ 65.742800][ T4159] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 65.744734][ T4159] __mutex_lock_common+0x194/0x2154 [ 65.746185][ T4159] mutex_lock_nested+0xa4/0xf8 [ 65.747707][ T4159] bg_scan_update+0x9c/0x470 [ 65.749103][ T4159] process_one_work+0x790/0x11b8 [ 65.750572][ T4159] worker_thread+0x910/0x1034 [ 65.751944][ T4159] kthread+0x37c/0x45c [ 65.753041][ T4159] ret_from_fork+0x10/0x20 [ 65.754202][ T4159] [ 65.754202][ T4159] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 65.756739][ T4159] __lock_acquire+0x32d4/0x7638 [ 65.758140][ T4159] lock_acquire+0x240/0x77c [ 65.759415][ T4159] __flush_work+0xf8/0x1c0 [ 65.760684][ T4159] __cancel_work_timer+0x3ec/0x548 [ 65.762147][ T4159] cancel_work_sync+0x24/0x38 [ 65.763489][ T4159] hci_request_cancel_all+0xcc/0x2d0 [ 65.765000][ T4159] hci_dev_do_close+0x54/0x1060 [ 65.766426][ T4159] hci_rfkill_set_block+0xdc/0x1d0 [ 65.767916][ T4159] rfkill_set_block+0x18c/0x37c [ 65.769291][ T4159] rfkill_fop_write+0x594/0x750 [ 65.770651][ T4159] vfs_write+0x280/0xb44 [ 65.772014][ T4159] ksys_write+0x15c/0x26c [ 65.773295][ T4159] __arm64_sys_write+0x7c/0x90 [ 65.774784][ T4159] invoke_syscall+0x98/0x2b8 [ 65.776043][ T4159] el0_svc_common+0x138/0x258 [ 65.777361][ T4159] do_el0_svc+0x58/0x14c [ 65.778506][ T4159] el0_svc+0x7c/0x1f0 [ 65.779642][ T4159] el0t_64_sync_handler+0x84/0xe4 [ 65.781102][ T4159] el0t_64_sync+0x1a0/0x1a4 [ 65.782384][ T4159] [ 65.782384][ T4159] other info that might help us debug this: [ 65.782384][ T4159] [ 65.785033][ T4159] Chain exists of: [ 65.785033][ T4159] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 65.785033][ T4159] [ 65.788915][ T4159] Possible unsafe locking scenario: [ 65.788915][ T4159] [ 65.790812][ T4159] CPU0 CPU1 [ 65.792074][ T4159] ---- ---- [ 65.793502][ T4159] lock(rfkill_global_mutex); [ 65.794708][ T4159] lock(&data->open_mutex); [ 65.796580][ T4159] lock(rfkill_global_mutex); [ 65.798474][ T4159] lock((work_completion)(&hdev->bg_scan_update)); [ 65.800148][ T4159] [ 65.800148][ T4159] *** DEADLOCK *** [ 65.800148][ T4159] [ 65.802227][ T4159] 1 lock held by syz.0.16/4159: [ 65.803510][ T4159] #0: ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 65.805957][ T4159] [ 65.805957][ T4159] stack backtrace: [ 65.807480][ T4159] CPU: 0 PID: 4159 Comm: syz.0.16 Not tainted 5.15.178-syzkaller #0 [ 65.809592][ T4159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 65.811996][ T4159] Call trace: [ 65.812836][ T4159] dump_backtrace+0x0/0x530 [ 65.813936][ T4159] show_stack+0x2c/0x3c [ 65.815019][ T4159] dump_stack_lvl+0x108/0x170 [ 65.816185][ T4159] dump_stack+0x1c/0x58 [ 65.817257][ T4159] print_circular_bug+0x150/0x1b8 [ 65.818560][ T4159] check_noncircular+0x2cc/0x378 [ 65.819805][ T4159] __lock_acquire+0x32d4/0x7638 [ 65.821004][ T4159] lock_acquire+0x240/0x77c [ 65.821998][ T4159] __flush_work+0xf8/0x1c0 [ 65.823114][ T4159] __cancel_work_timer+0x3ec/0x548 [ 65.824378][ T4159] cancel_work_sync+0x24/0x38 [ 65.825595][ T4159] hci_request_cancel_all+0xcc/0x2d0 [ 65.826922][ T4159] hci_dev_do_close+0x54/0x1060 [ 65.828212][ T4159] hci_rfkill_set_block+0xdc/0x1d0 [ 65.829502][ T4159] rfkill_set_block+0x18c/0x37c [ 65.830733][ T4159] rfkill_fop_write+0x594/0x750 [ 65.831894][ T4159] vfs_write+0x280/0xb44 [ 65.833020][ T4159] ksys_write+0x15c/0x26c [ 65.834195][ T4159] __arm64_sys_write+0x7c/0x90 [ 65.835427][ T4159] invoke_syscall+0x98/0x2b8 [ 65.836606][ T4159] el0_svc_common+0x138/0x258 [ 65.837890][ T4159] do_el0_svc+0x58/0x14c [ 65.838993][ T4159] el0_svc+0x7c/0x1f0 [ 65.840044][ T4159] el0t_64_sync_handler+0x84/0xe4 [ 65.841443][ T4159] el0t_64_sync+0x1a0/0x1a4