Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:45 parsed 1 programs syzkaller login: [ 48.413876][ T4023] cgroup: Unknown subsys name 'net' [ 48.672208][ T4023] cgroup: Unknown subsys name 'rlimit' [ 49.011065][ T4023] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 63.779375][ T4080] chnl_net:caif_netlink_parms(): no params data found [ 63.823104][ T4080] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.824865][ T4080] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.827576][ T4080] device bridge_slave_0 entered promiscuous mode [ 63.831868][ T4080] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.833533][ T4080] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.837551][ T4080] device bridge_slave_1 entered promiscuous mode [ 63.855256][ T4080] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.862188][ T4080] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.880663][ T4080] team0: Port device team_slave_0 added [ 63.884003][ T4080] team0: Port device team_slave_1 added [ 63.900353][ T4080] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.901888][ T4080] 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. [ 63.907588][ T4080] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.911882][ T4080] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.913370][ T4080] 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. [ 63.920291][ T4080] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.988481][ T4080] device hsr_slave_0 entered promiscuous mode [ 64.026532][ T4080] device hsr_slave_1 entered promiscuous mode [ 64.155048][ T4080] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.209163][ T4080] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.248578][ T4080] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.309796][ T4080] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.386061][ T4080] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.387922][ T4080] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.390191][ T4080] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.391767][ T4080] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.445582][ T4080] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.458966][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.462770][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.467347][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.476691][ T4080] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.482892][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.485497][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.487207][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.493553][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.497722][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.499287][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.512831][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.515396][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.522310][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.544711][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.547898][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.551695][ T4080] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.626427][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.628271][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.634579][ T4080] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.650479][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.668823][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.672023][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.674372][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.678911][ T4080] device veth0_vlan entered promiscuous mode [ 64.685721][ T4080] device veth1_vlan entered promiscuous mode [ 64.701635][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.703912][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.706398][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.711851][ T4080] device veth0_macvtap entered promiscuous mode [ 64.717605][ T4080] device veth1_macvtap entered promiscuous mode [ 64.731948][ T4080] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.733962][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.738754][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.743512][ T4080] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.749605][ T4080] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.753742][ T4080] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.755634][ T4080] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.759672][ T4080] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.762930][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.765378][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.951584][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.953450][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.956338][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.971858][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.973650][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.977768][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:05 executed programs: 0 [ 65.300110][ T4112] chnl_net:caif_netlink_parms(): no params data found [ 65.337278][ T4112] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.338931][ T4112] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.341313][ T4112] device bridge_slave_0 entered promiscuous mode [ 65.344807][ T4112] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.346570][ T4112] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.348912][ T4112] device bridge_slave_1 entered promiscuous mode [ 65.366641][ T4112] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.370659][ T4112] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.391260][ T4112] team0: Port device team_slave_0 added [ 65.394508][ T4112] team0: Port device team_slave_1 added [ 65.409491][ T4112] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.411080][ T4112] 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. [ 65.417077][ T4112] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.420907][ T4112] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.422539][ T4112] 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. [ 65.428658][ T4112] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.498033][ T4112] device hsr_slave_0 entered promiscuous mode [ 65.536576][ T4112] device hsr_slave_1 entered promiscuous mode [ 65.576190][ T4112] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.578095][ T4112] Cannot create hsr debugfs directory [ 65.673822][ T4112] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.226607][ T4028] Bluetooth: hci0: command 0x0409 tx timeout [ 68.163950][ T4112] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.306667][ T4093] Bluetooth: hci0: command 0x041b tx timeout [ 69.628827][ T2057] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.630465][ T2057] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.203591][ T4112] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.259330][ T4112] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.446931][ T4112] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.499874][ T4112] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.538566][ T4112] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.598186][ T4112] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.703367][ T4112] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.710655][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.713241][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.718428][ T4112] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.724231][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.728246][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.730592][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.732281][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.734497][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.750775][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.753544][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.755975][ T1885] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.757677][ T1885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.761148][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.763741][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.775849][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.779202][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.781694][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.792014][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.794675][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.800255][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.802765][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.809108][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.812409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.819031][ T4112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.896691][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.898591][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.904763][ T4112] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.919885][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.922452][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.934508][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.939953][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.942803][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.945062][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.957850][ T4112] device veth0_vlan entered promiscuous mode [ 70.964575][ T4112] device veth1_vlan entered promiscuous mode [ 70.983722][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.986712][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.989067][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 70.992130][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.996945][ T4112] device veth0_macvtap entered promiscuous mode [ 71.001477][ T4112] device veth1_macvtap entered promiscuous mode [ 71.011834][ T4112] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 71.014295][ T4112] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.019434][ T4112] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.022642][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.027864][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.030548][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.033023][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.035797][ T4112] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 71.039499][ T4112] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 71.043244][ T4112] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.045171][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.050821][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.055550][ T4112] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.058219][ T4112] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.060092][ T4112] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.062122][ T4112] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.118594][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.120529][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.125347][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.134469][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.136693][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.139543][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.182178][ T4124] [ 71.182754][ T4124] ====================================================== [ 71.184287][ T4124] WARNING: possible circular locking dependency detected [ 71.185839][ T4124] 5.15.172-syzkaller #0 Not tainted [ 71.187013][ T4124] ------------------------------------------------------ [ 71.188676][ T4124] syz.0.15/4124 is trying to acquire lock: [ 71.190034][ T4124] ffff0000d70a4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 71.192562][ T4124] [ 71.192562][ T4124] but task is already holding lock: [ 71.194222][ T4124] ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 71.196418][ T4124] [ 71.196418][ T4124] which lock already depends on the new lock. [ 71.196418][ T4124] [ 71.198697][ T4124] [ 71.198697][ T4124] the existing dependency chain (in reverse order) is: [ 71.200680][ T4124] [ 71.200680][ T4124] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 71.202464][ T4124] __mutex_lock_common+0x194/0x2154 [ 71.203780][ T4124] mutex_lock_nested+0xa4/0xf8 [ 71.205027][ T4124] rfkill_register+0x44/0x7a4 [ 71.206133][ T4124] hci_register_dev+0x3e0/0x880 [ 71.207255][ T4124] vhci_create_device+0x2c4/0x568 [ 71.208470][ T4124] vhci_write+0x318/0x3b8 [ 71.209581][ T4124] vfs_write+0x884/0xb44 [ 71.210625][ T4124] ksys_write+0x15c/0x26c [ 71.211747][ T4124] __arm64_sys_write+0x7c/0x90 [ 71.212890][ T4124] invoke_syscall+0x98/0x2b8 [ 71.214029][ T4124] el0_svc_common+0x138/0x258 [ 71.215087][ T4124] do_el0_svc+0x58/0x14c [ 71.216120][ T4124] el0_svc+0x7c/0x1f0 [ 71.217068][ T4124] el0t_64_sync_handler+0x84/0xe4 [ 71.218243][ T4124] el0t_64_sync+0x1a0/0x1a4 [ 71.219378][ T4124] [ 71.219378][ T4124] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 71.221144][ T4124] __mutex_lock_common+0x194/0x2154 [ 71.222417][ T4124] mutex_lock_nested+0xa4/0xf8 [ 71.223634][ T4124] vhci_send_frame+0x8c/0x10c [ 71.224781][ T4124] hci_send_frame+0x194/0x2f0 [ 71.225972][ T4124] hci_tx_work+0x9ac/0x16cc [ 71.227053][ T4124] process_one_work+0x790/0x11b8 [ 71.228235][ T4124] worker_thread+0x910/0x1034 [ 71.229378][ T4124] kthread+0x37c/0x45c [ 71.230417][ T4124] ret_from_fork+0x10/0x20 [ 71.231541][ T4124] [ 71.231541][ T4124] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 71.233607][ T4124] __flush_work+0xf8/0x1c0 [ 71.234597][ T4124] flush_work+0x24/0x38 [ 71.235683][ T4124] hci_dev_do_close+0x16c/0x1060 [ 71.236888][ T4124] hci_unregister_dev+0x248/0x4d4 [ 71.238057][ T4124] vhci_release+0x74/0xc4 [ 71.239073][ T4124] __fput+0x1c4/0x800 [ 71.240131][ T4124] ____fput+0x20/0x30 [ 71.241127][ T4124] task_work_run+0x130/0x1e4 [ 71.242275][ T4124] do_exit+0x670/0x20bc [ 71.243343][ T4124] do_group_exit+0x110/0x268 [ 71.244514][ T4124] get_signal+0x634/0x1550 [ 71.245651][ T4124] do_notify_resume+0x3d0/0x32b8 [ 71.246930][ T4124] el0_svc+0xfc/0x1f0 [ 71.247951][ T4124] el0t_64_sync_handler+0x84/0xe4 [ 71.249247][ T4124] el0t_64_sync+0x1a0/0x1a4 [ 71.250327][ T4124] [ 71.250327][ T4124] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 71.252096][ T4124] __mutex_lock_common+0x194/0x2154 [ 71.253307][ T4124] mutex_lock_nested+0xa4/0xf8 [ 71.254461][ T4124] bg_scan_update+0x9c/0x470 [ 71.255580][ T4124] process_one_work+0x790/0x11b8 [ 71.256744][ T4124] worker_thread+0x910/0x1034 [ 71.257943][ T4124] kthread+0x37c/0x45c [ 71.258958][ T4124] ret_from_fork+0x10/0x20 [ 71.260100][ T4124] [ 71.260100][ T4124] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 71.262310][ T4124] __lock_acquire+0x32d4/0x7638 [ 71.263488][ T4124] lock_acquire+0x240/0x77c [ 71.264612][ T4124] __flush_work+0xf8/0x1c0 [ 71.265855][ T4124] __cancel_work_timer+0x3ec/0x548 [ 71.267097][ T4124] cancel_work_sync+0x24/0x38 [ 71.268258][ T4124] hci_request_cancel_all+0xcc/0x2d0 [ 71.269645][ T4124] hci_dev_do_close+0x54/0x1060 [ 71.270948][ T4124] hci_rfkill_set_block+0xdc/0x1d0 [ 71.272248][ T4124] rfkill_set_block+0x18c/0x37c [ 71.273431][ T4124] rfkill_fop_write+0x594/0x750 [ 71.274634][ T4124] vfs_write+0x280/0xb44 [ 71.275708][ T4124] ksys_write+0x15c/0x26c [ 71.276830][ T4124] __arm64_sys_write+0x7c/0x90 [ 71.277973][ T4124] invoke_syscall+0x98/0x2b8 [ 71.279138][ T4124] el0_svc_common+0x138/0x258 [ 71.280336][ T4124] do_el0_svc+0x58/0x14c [ 71.281372][ T4124] el0_svc+0x7c/0x1f0 [ 71.282467][ T4124] el0t_64_sync_handler+0x84/0xe4 [ 71.283690][ T4124] el0t_64_sync+0x1a0/0x1a4 [ 71.284772][ T4124] [ 71.284772][ T4124] other info that might help us debug this: [ 71.284772][ T4124] [ 71.286981][ T4124] Chain exists of: [ 71.286981][ T4124] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 71.286981][ T4124] [ 71.290619][ T4124] Possible unsafe locking scenario: [ 71.290619][ T4124] [ 71.292352][ T4124] CPU0 CPU1 [ 71.293523][ T4124] ---- ---- [ 71.294739][ T4124] lock(rfkill_global_mutex); [ 71.295777][ T4124] lock(&data->open_mutex); [ 71.297405][ T4124] lock(rfkill_global_mutex); [ 71.299048][ T4124] lock((work_completion)(&hdev->bg_scan_update)); [ 71.300581][ T4124] [ 71.300581][ T4124] *** DEADLOCK *** [ 71.300581][ T4124] [ 71.302455][ T4124] 1 lock held by syz.0.15/4124: [ 71.303603][ T4124] #0: ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 71.305973][ T4124] [ 71.305973][ T4124] stack backtrace: [ 71.307346][ T4124] CPU: 1 PID: 4124 Comm: syz.0.15 Not tainted 5.15.172-syzkaller #0 [ 71.309127][ T4124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 71.311310][ T4124] Call trace: [ 71.312043][ T4124] dump_backtrace+0x0/0x530 [ 71.313020][ T4124] show_stack+0x2c/0x3c [ 71.314002][ T4124] dump_stack_lvl+0x108/0x170 [ 71.315038][ T4124] dump_stack+0x1c/0x58 [ 71.315942][ T4124] print_circular_bug+0x150/0x1b8 [ 71.317107][ T4124] check_noncircular+0x2cc/0x378 [ 71.318187][ T4124] __lock_acquire+0x32d4/0x7638 [ 71.319222][ T4124] lock_acquire+0x240/0x77c [ 71.320161][ T4124] __flush_work+0xf8/0x1c0 [ 71.321213][ T4124] __cancel_work_timer+0x3ec/0x548 [ 71.322321][ T4124] cancel_work_sync+0x24/0x38 [ 71.323391][ T4124] hci_request_cancel_all+0xcc/0x2d0 [ 71.324600][ T4124] hci_dev_do_close+0x54/0x1060 [ 71.325730][ T4124] hci_rfkill_set_block+0xdc/0x1d0 [ 71.326937][ T4124] rfkill_set_block+0x18c/0x37c [ 71.327989][ T4124] rfkill_fop_write+0x594/0x750 [ 71.329130][ T4124] vfs_write+0x280/0xb44 [ 71.330020][ T4124] ksys_write+0x15c/0x26c [ 71.331028][ T4124] __arm64_sys_write+0x7c/0x90 [ 71.332005][ T4124] invoke_syscall+0x98/0x2b8 [ 71.333021][ T4124] el0_svc_common+0x138/0x258 [ 71.334183][ T4124] do_el0_svc+0x58/0x14c [ 71.335093][ T4124] el0_svc+0x7c/0x1f0 [ 71.335939][ T4124] el0t_64_sync_handler+0x84/0xe4 [ 71.337058][ T4124] el0t_64_sync+0x1a0/0x1a4 [ 71.386166][ T4098] Bluetooth: hci0: command 0x040f tx timeout