Warning: Permanently added '10.128.0.131' (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: [ 47.755087][ T4023] cgroup: Unknown subsys name 'net' [ 48.014630][ T4023] cgroup: Unknown subsys name 'rlimit' [ 48.328869][ T4023] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 57.584635][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.586545][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.589698][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.603421][ T641] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.605328][ T641] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.607723][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 58.437414][ T4088] chnl_net:caif_netlink_parms(): no params data found [ 58.480615][ T4088] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.482400][ T4088] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.484753][ T4088] device bridge_slave_0 entered promiscuous mode [ 58.489596][ T4088] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.491335][ T4088] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.493767][ T4088] device bridge_slave_1 entered promiscuous mode [ 58.511416][ T4088] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.516509][ T4088] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.534246][ T4088] team0: Port device team_slave_0 added [ 58.537562][ T4088] team0: Port device team_slave_1 added [ 58.553137][ T4088] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.554720][ T4088] 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. [ 58.562256][ T4088] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.566441][ T4088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.568075][ T4088] 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. [ 58.574449][ T4088] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.642313][ T4088] device hsr_slave_0 entered promiscuous mode [ 58.680199][ T4088] device hsr_slave_1 entered promiscuous mode [ 58.807036][ T4088] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.841665][ T4088] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.880975][ T4088] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.920871][ T4088] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.032920][ T4088] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.043067][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.045823][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.050987][ T4088] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.058656][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.062596][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.065201][ T641] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.067017][ T641] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.070482][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.073051][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.075354][ T641] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.077019][ T641] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.083115][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.085840][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.091119][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.097971][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.100795][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.103307][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.108423][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.114054][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.120930][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.123306][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.130034][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.134945][ T4088] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.146833][ T136] ODEBUG: Out of memory. ODEBUG disabled [ 59.216873][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.220770][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.227313][ T4088] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.238160][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.251902][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.254683][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.256828][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.263309][ T4088] device veth0_vlan entered promiscuous mode [ 59.280914][ T4088] device veth1_vlan entered promiscuous mode [ 59.296609][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.298861][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.301297][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.305119][ T4088] device veth0_macvtap entered promiscuous mode [ 59.316942][ T4088] device veth1_macvtap entered promiscuous mode [ 59.333491][ T4088] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.335496][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.337780][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.341624][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.347133][ T4088] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.349435][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.351771][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.356091][ T4088] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.358266][ T4088] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.360528][ T4088] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.362530][ T4088] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:59 executed programs: 0 [ 59.547733][ T4121] chnl_net:caif_netlink_parms(): no params data found [ 59.580710][ T4121] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.582471][ T4121] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.584655][ T4121] device bridge_slave_0 entered promiscuous mode [ 59.587609][ T4121] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.589599][ T4121] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.591811][ T4121] device bridge_slave_1 entered promiscuous mode [ 59.605762][ T4121] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.610682][ T4121] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.629312][ T4121] team0: Port device team_slave_0 added [ 59.632066][ T4121] team0: Port device team_slave_1 added [ 59.643850][ T4121] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.645496][ T4121] 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. [ 59.651335][ T4121] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.655446][ T4121] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.657062][ T4121] 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. [ 59.663467][ T4121] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.720361][ T4121] device hsr_slave_0 entered promiscuous mode [ 59.758812][ T4121] device hsr_slave_1 entered promiscuous mode [ 59.798652][ T4121] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.800670][ T4121] Cannot create hsr debugfs directory [ 59.849461][ T4121] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.529259][ T4112] Bluetooth: hci0: command 0x0409 tx timeout [ 62.254777][ T4121] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.609345][ T25] Bluetooth: hci0: command 0x041b tx timeout [ 64.963947][ T4121] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.086635][ T4121] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.297985][ T4121] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.330237][ T4121] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.383890][ T4121] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.423123][ T4121] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.524168][ T4121] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.531205][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.533236][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.538052][ T4121] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.546340][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.549135][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.551231][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.552770][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.563428][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.565717][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.568016][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.571094][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.572599][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.574595][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.588162][ T4121] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.591725][ T4121] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.595603][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.598104][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.603023][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.605741][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.608299][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.611273][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.613408][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.615760][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.618134][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.625054][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.627367][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.686627][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.688774][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.694605][ T4121] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.699038][ T25] Bluetooth: hci0: command 0x040f tx timeout [ 65.708812][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.711304][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.724081][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.726339][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.730697][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.733742][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.737839][ T4121] device veth0_vlan entered promiscuous mode [ 65.746565][ T4121] device veth1_vlan entered promiscuous mode [ 65.765235][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.767513][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.771872][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.774760][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.779946][ T4121] device veth0_macvtap entered promiscuous mode [ 65.785234][ T4121] device veth1_macvtap entered promiscuous mode [ 65.797368][ T4121] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 65.800769][ T4121] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.804026][ T4121] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.805844][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.808146][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.810353][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.812871][ T490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.816578][ T4121] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 65.829229][ T4121] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.832498][ T4121] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.834615][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.836974][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.850777][ T4121] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.852696][ T4121] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.854581][ T4121] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.856615][ T4121] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.925152][ T641] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.927159][ T641] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.945600][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.962816][ T302] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.964742][ T302] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.967843][ T641] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.024170][ T4133] [ 66.024748][ T4133] ====================================================== [ 66.026339][ T4133] WARNING: possible circular locking dependency detected [ 66.027871][ T4133] 5.15.173-syzkaller #0 Not tainted [ 66.029112][ T4133] ------------------------------------------------------ [ 66.030693][ T4133] syz.0.15/4133 is trying to acquire lock: [ 66.031989][ T4133] ffff0000db52cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 66.034560][ T4133] [ 66.034560][ T4133] but task is already holding lock: [ 66.036271][ T4133] ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.038522][ T4133] [ 66.038522][ T4133] which lock already depends on the new lock. [ 66.038522][ T4133] [ 66.040988][ T4133] [ 66.040988][ T4133] the existing dependency chain (in reverse order) is: [ 66.043226][ T4133] [ 66.043226][ T4133] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.045006][ T4133] __mutex_lock_common+0x194/0x2154 [ 66.046366][ T4133] mutex_lock_nested+0xa4/0xf8 [ 66.047586][ T4133] rfkill_register+0x44/0x7a4 [ 66.048867][ T4133] hci_register_dev+0x3e0/0x880 [ 66.050182][ T4133] vhci_create_device+0x2c4/0x568 [ 66.051374][ T4133] vhci_write+0x318/0x3b8 [ 66.052439][ T4133] vfs_write+0x884/0xb44 [ 66.053480][ T4133] ksys_write+0x15c/0x26c [ 66.054613][ T4133] __arm64_sys_write+0x7c/0x90 [ 66.055878][ T4133] invoke_syscall+0x98/0x2b8 [ 66.057145][ T4133] el0_svc_common+0x138/0x258 [ 66.058465][ T4133] do_el0_svc+0x58/0x14c [ 66.059664][ T4133] el0_svc+0x7c/0x1f0 [ 66.060661][ T4133] el0t_64_sync_handler+0x84/0xe4 [ 66.061993][ T4133] el0t_64_sync+0x1a0/0x1a4 [ 66.063151][ T4133] [ 66.063151][ T4133] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.064885][ T4133] __mutex_lock_common+0x194/0x2154 [ 66.066225][ T4133] mutex_lock_nested+0xa4/0xf8 [ 66.067465][ T4133] vhci_send_frame+0x8c/0x10c [ 66.068698][ T4133] hci_send_frame+0x194/0x2f0 [ 66.069840][ T4133] hci_tx_work+0x9ac/0x16cc [ 66.071013][ T4133] process_one_work+0x790/0x11b8 [ 66.072293][ T4133] worker_thread+0x910/0x1034 [ 66.073380][ T4133] kthread+0x37c/0x45c [ 66.074468][ T4133] ret_from_fork+0x10/0x20 [ 66.075626][ T4133] [ 66.075626][ T4133] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 66.077601][ T4133] __flush_work+0xf8/0x1c0 [ 66.078663][ T4133] flush_work+0x24/0x38 [ 66.079731][ T4133] hci_dev_do_close+0x16c/0x1060 [ 66.081073][ T4133] hci_unregister_dev+0x248/0x4d4 [ 66.082347][ T4133] vhci_release+0x74/0xc4 [ 66.083495][ T4133] __fput+0x1c4/0x800 [ 66.084483][ T4133] ____fput+0x20/0x30 [ 66.085512][ T4133] task_work_run+0x130/0x1e4 [ 66.086770][ T4133] do_exit+0x670/0x20bc [ 66.087747][ T4133] do_group_exit+0x110/0x268 [ 66.088852][ T4133] get_signal+0x634/0x1550 [ 66.089850][ T4133] do_notify_resume+0x3d0/0x32b8 [ 66.091120][ T4133] el0_svc+0xfc/0x1f0 [ 66.092120][ T4133] el0t_64_sync_handler+0x84/0xe4 [ 66.093391][ T4133] el0t_64_sync+0x1a0/0x1a4 [ 66.094454][ T4133] [ 66.094454][ T4133] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 66.096259][ T4133] __mutex_lock_common+0x194/0x2154 [ 66.097590][ T4133] mutex_lock_nested+0xa4/0xf8 [ 66.098755][ T4133] bg_scan_update+0x9c/0x470 [ 66.099875][ T4133] process_one_work+0x790/0x11b8 [ 66.101092][ T4133] worker_thread+0x910/0x1034 [ 66.102255][ T4133] kthread+0x37c/0x45c [ 66.103227][ T4133] ret_from_fork+0x10/0x20 [ 66.104340][ T4133] [ 66.104340][ T4133] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.106679][ T4133] __lock_acquire+0x32d4/0x7638 [ 66.107888][ T4133] lock_acquire+0x240/0x77c [ 66.108939][ T4133] __flush_work+0xf8/0x1c0 [ 66.110109][ T4133] __cancel_work_timer+0x3ec/0x548 [ 66.111376][ T4133] cancel_work_sync+0x24/0x38 [ 66.112553][ T4133] hci_request_cancel_all+0xcc/0x2d0 [ 66.113835][ T4133] hci_dev_do_close+0x54/0x1060 [ 66.114996][ T4133] hci_rfkill_set_block+0xdc/0x1d0 [ 66.116185][ T4133] rfkill_set_block+0x18c/0x37c [ 66.117381][ T4133] rfkill_fop_write+0x594/0x750 [ 66.118619][ T4133] vfs_write+0x280/0xb44 [ 66.119830][ T4133] ksys_write+0x15c/0x26c [ 66.120864][ T4133] __arm64_sys_write+0x7c/0x90 [ 66.122083][ T4133] invoke_syscall+0x98/0x2b8 [ 66.123308][ T4133] el0_svc_common+0x138/0x258 [ 66.124472][ T4133] do_el0_svc+0x58/0x14c [ 66.125559][ T4133] el0_svc+0x7c/0x1f0 [ 66.126585][ T4133] el0t_64_sync_handler+0x84/0xe4 [ 66.127816][ T4133] el0t_64_sync+0x1a0/0x1a4 [ 66.128985][ T4133] [ 66.128985][ T4133] other info that might help us debug this: [ 66.128985][ T4133] [ 66.131356][ T4133] Chain exists of: [ 66.131356][ T4133] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.131356][ T4133] [ 66.134993][ T4133] Possible unsafe locking scenario: [ 66.134993][ T4133] [ 66.136657][ T4133] CPU0 CPU1 [ 66.137834][ T4133] ---- ---- [ 66.139131][ T4133] lock(rfkill_global_mutex); [ 66.140243][ T4133] lock(&data->open_mutex); [ 66.141860][ T4133] lock(rfkill_global_mutex); [ 66.143458][ T4133] lock((work_completion)(&hdev->bg_scan_update)); [ 66.144862][ T4133] [ 66.144862][ T4133] *** DEADLOCK *** [ 66.144862][ T4133] [ 66.146733][ T4133] 1 lock held by syz.0.15/4133: [ 66.147910][ T4133] #0: ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.150182][ T4133] [ 66.150182][ T4133] stack backtrace: [ 66.151460][ T4133] CPU: 0 PID: 4133 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 66.153294][ T4133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 66.155556][ T4133] Call trace: [ 66.156277][ T4133] dump_backtrace+0x0/0x530 [ 66.157191][ T4133] show_stack+0x2c/0x3c [ 66.158227][ T4133] dump_stack_lvl+0x108/0x170 [ 66.159280][ T4133] dump_stack+0x1c/0x58 [ 66.160286][ T4133] print_circular_bug+0x150/0x1b8 [ 66.161418][ T4133] check_noncircular+0x2cc/0x378 [ 66.162586][ T4133] __lock_acquire+0x32d4/0x7638 [ 66.163733][ T4133] lock_acquire+0x240/0x77c [ 66.164728][ T4133] __flush_work+0xf8/0x1c0 [ 66.165726][ T4133] __cancel_work_timer+0x3ec/0x548 [ 66.166811][ T4133] cancel_work_sync+0x24/0x38 [ 66.167907][ T4133] hci_request_cancel_all+0xcc/0x2d0 [ 66.169099][ T4133] hci_dev_do_close+0x54/0x1060 [ 66.170307][ T4133] hci_rfkill_set_block+0xdc/0x1d0 [ 66.171455][ T4133] rfkill_set_block+0x18c/0x37c [ 66.172565][ T4133] rfkill_fop_write+0x594/0x750 [ 66.173586][ T4133] vfs_write+0x280/0xb44 [ 66.174498][ T4133] ksys_write+0x15c/0x26c [ 66.175439][ T4133] __arm64_sys_write+0x7c/0x90 [ 66.176422][ T4133] invoke_syscall+0x98/0x2b8 [ 66.177490][ T4133] el0_svc_common+0x138/0x258 [ 66.178577][ T4133] do_el0_svc+0x58/0x14c [ 66.179536][ T4133] el0_svc+0x7c/0x1f0 [ 66.180377][ T4133] el0t_64_sync_handler+0x84/0xe4 [ 66.181545][ T4133] el0t_64_sync+0x1a0/0x1a4