Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. 2026/05/26 02:35:40 parsed 1 programs [ 57.751280][ T4199] cgroup: Unknown subsys name 'net' [ 57.903507][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 59.126696][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 61.053355][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.064451][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.074973][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.095465][ T416] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.103339][ T416] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.111379][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.541785][ T4263] chnl_net:caif_netlink_parms(): no params data found [ 62.616338][ T4263] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.639574][ T4263] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.649164][ T4263] device bridge_slave_0 entered promiscuous mode [ 62.664644][ T4263] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.672254][ T4263] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.680671][ T4263] device bridge_slave_1 entered promiscuous mode [ 62.698174][ T4263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.709566][ T4263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.728255][ T4263] team0: Port device team_slave_0 added [ 62.736423][ T4263] team0: Port device team_slave_1 added [ 62.751032][ T4263] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.758443][ T4263] 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. [ 62.785396][ T4263] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.798607][ T4263] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.806620][ T4263] 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. [ 62.833056][ T4263] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.858163][ T4263] device hsr_slave_0 entered promiscuous mode [ 62.865694][ T4263] device hsr_slave_1 entered promiscuous mode [ 62.944211][ T4263] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.956641][ T4263] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.965513][ T4263] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.974143][ T4263] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.995542][ T4263] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.002757][ T4263] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.011031][ T4263] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.018079][ T4263] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.060518][ T4263] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.073517][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.084224][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.092508][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.123171][ T4263] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.134483][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.143640][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.150829][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.162611][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.171218][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.178277][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.214018][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.223621][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.236260][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.263360][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.274733][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.285449][ T4263] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.371939][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.379957][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.393813][ T4263] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.421747][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.430489][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.447666][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.457592][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.471230][ T4263] device veth0_vlan entered promiscuous mode [ 63.479021][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.486849][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.518018][ T4263] device veth1_vlan entered promiscuous mode [ 63.536119][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.544449][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.553072][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.562426][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.573776][ T4263] device veth0_macvtap entered promiscuous mode [ 63.612338][ T4263] device veth1_macvtap entered promiscuous mode [ 63.630748][ T4263] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.640152][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.648239][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.656593][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.666631][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.677586][ T4263] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.687173][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.696129][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.705980][ T4263] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.715321][ T4263] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.724249][ T4263] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.733259][ T4263] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.849251][ T4263] syz-executor (4263) used greatest stack depth: 21104 bytes left 2026/05/26 02:35:48 executed programs: 0 [ 64.515908][ T4307] chnl_net:caif_netlink_parms(): no params data found [ 64.570864][ T4307] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.578042][ T4307] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.586439][ T4307] device bridge_slave_0 entered promiscuous mode [ 64.596671][ T4307] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.603918][ T4307] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.612117][ T4307] device bridge_slave_1 entered promiscuous mode [ 64.635799][ T4307] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.647829][ T4307] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.684949][ T4307] team0: Port device team_slave_0 added [ 64.693180][ T4307] team0: Port device team_slave_1 added [ 64.714052][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.721122][ T4307] 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. [ 64.749113][ T4307] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.762604][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.769642][ T4307] 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. [ 64.796326][ T4307] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.836359][ T4307] device hsr_slave_0 entered promiscuous mode [ 64.843364][ T4307] device hsr_slave_1 entered promiscuous mode [ 64.851942][ T4307] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.859904][ T4307] Cannot create hsr debugfs directory [ 64.964841][ T4307] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.430035][ T1111] Bluetooth: hci0: command 0x0409 tx timeout [ 67.535326][ T4307] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.498662][ T4221] Bluetooth: hci0: command 0x041b tx timeout [ 68.692843][ T4307] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.747786][ T4307] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.962058][ T4307] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.971470][ T4307] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.981632][ T4307] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.990710][ T4307] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.041098][ T4307] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.054124][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.063701][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.083263][ T4307] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.092272][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.101368][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.110101][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.117412][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.125879][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.146711][ T144] device hsr_slave_0 left promiscuous mode [ 69.153438][ T144] device hsr_slave_1 left promiscuous mode [ 69.160459][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.167951][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.177580][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.185332][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.193305][ T144] device bridge_slave_1 left promiscuous mode [ 69.200026][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.213846][ T144] device bridge_slave_0 left promiscuous mode [ 69.221336][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.237147][ T144] device veth1_macvtap left promiscuous mode [ 69.243942][ T144] device veth0_macvtap left promiscuous mode [ 69.251498][ T144] device veth1_vlan left promiscuous mode [ 69.257529][ T144] device veth0_vlan left promiscuous mode [ 69.386281][ T144] team0 (unregistering): Port device team_slave_1 removed [ 69.400532][ T144] team0 (unregistering): Port device team_slave_0 removed [ 69.414147][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.427066][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.474912][ T144] bond0 (unregistering): Released all slaves [ 69.533108][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.542175][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.551207][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.558712][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.566586][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.581902][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.592719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.601628][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.611570][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.623076][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.631913][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.643295][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.652055][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.664123][ T4307] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.675797][ T4307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.684753][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.693327][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.775317][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.783646][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.796798][ T4307] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.824978][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.834048][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.851283][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.860582][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.875751][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.886857][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.894935][ T4307] device veth0_vlan entered promiscuous mode [ 69.906106][ T4307] device veth1_vlan entered promiscuous mode [ 69.923577][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.932141][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.942030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.951091][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.962986][ T4307] device veth0_macvtap entered promiscuous mode [ 69.973162][ T4307] device veth1_macvtap entered promiscuous mode [ 69.986581][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.994507][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.003503][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.011789][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.021325][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.031911][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.042548][ T4307] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.054079][ T4307] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.064894][ T4307] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.074076][ T4307] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.085753][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.095614][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.170664][ T416] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.187282][ T416] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.205158][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.219626][ T416] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.227549][ T416] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.236568][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.344998][ T4322] [ 70.347759][ T4322] ====================================================== [ 70.354776][ T4322] WARNING: possible circular locking dependency detected [ 70.362241][ T4322] syzkaller #0 Not tainted [ 70.366670][ T4322] ------------------------------------------------------ [ 70.373697][ T4322] syz.0.17/4322 is trying to acquire lock: [ 70.379632][ T4322] ffff88801eb54c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 70.390891][ T4322] [ 70.390891][ T4322] but task is already holding lock: [ 70.398254][ T4322] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 70.407908][ T4322] [ 70.407908][ T4322] which lock already depends on the new lock. [ 70.407908][ T4322] [ 70.418566][ T4322] [ 70.418566][ T4322] the existing dependency chain (in reverse order) is: [ 70.427583][ T4322] [ 70.427583][ T4322] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 70.435580][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 70.441331][ T4322] mutex_lock_nested+0x17/0x20 [ 70.446626][ T4322] rfkill_register+0x33/0x980 [ 70.451861][ T4322] hci_register_dev+0x452/0x970 [ 70.457342][ T4322] vhci_create_device+0x32c/0x5c0 [ 70.463429][ T4322] vhci_write+0x391/0x450 [ 70.468286][ T4322] vfs_write+0x745/0xd60 [ 70.473057][ T4322] ksys_write+0x152/0x260 [ 70.478002][ T4322] do_syscall_64+0x4c/0xa0 [ 70.483008][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.489467][ T4322] [ 70.489467][ T4322] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 70.497502][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 70.503243][ T4322] mutex_lock_nested+0x17/0x20 [ 70.508545][ T4322] vhci_send_frame+0x88/0x100 [ 70.513851][ T4322] hci_send_frame+0x1a9/0x2e0 [ 70.519073][ T4322] hci_tx_work+0x9f9/0x1710 [ 70.524280][ T4322] process_one_work+0x85f/0x1010 [ 70.529834][ T4322] worker_thread+0xaa6/0x1290 [ 70.535036][ T4322] kthread+0x436/0x520 [ 70.539904][ T4322] ret_from_fork+0x1f/0x30 [ 70.544849][ T4322] [ 70.544849][ T4322] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 70.554070][ T4322] __flush_work+0x116/0x210 [ 70.559276][ T4322] hci_dev_do_close+0x1e7/0x1030 [ 70.564744][ T4322] hci_unregister_dev+0x2d7/0x580 [ 70.571456][ T4322] vhci_release+0x73/0xc0 [ 70.576404][ T4322] __fput+0x234/0x930 [ 70.580912][ T4322] task_work_run+0x125/0x1a0 [ 70.586031][ T4322] do_exit+0x626/0x20c0 [ 70.591298][ T4322] do_group_exit+0x12e/0x300 [ 70.596527][ T4322] get_signal+0x6d6/0x12d0 [ 70.599160][ T4316] Bluetooth: hci0: command 0x040f tx timeout [ 70.602155][ T4322] arch_do_signal_or_restart+0xe7/0x12c0 [ 70.614805][ T4322] exit_to_user_mode_loop+0x9e/0x130 [ 70.620812][ T4322] exit_to_user_mode_prepare+0xee/0x180 [ 70.626894][ T4322] syscall_exit_to_user_mode+0x16/0x40 [ 70.632883][ T4322] do_syscall_64+0x58/0xa0 [ 70.637920][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.644533][ T4322] [ 70.644533][ T4322] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 70.652268][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 70.658543][ T4322] mutex_lock_nested+0x17/0x20 [ 70.663837][ T4322] bg_scan_update+0x44/0x3b0 [ 70.668969][ T4322] process_one_work+0x85f/0x1010 [ 70.674627][ T4322] worker_thread+0xaa6/0x1290 [ 70.679841][ T4322] kthread+0x436/0x520 [ 70.684434][ T4322] ret_from_fork+0x1f/0x30 [ 70.689385][ T4322] [ 70.689385][ T4322] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 70.699289][ T4322] __lock_acquire+0x2c42/0x7d10 [ 70.704672][ T4322] lock_acquire+0x19e/0x400 [ 70.709799][ T4322] __flush_work+0x116/0x210 [ 70.714825][ T4322] __cancel_work_timer+0x3f4/0x560 [ 70.720554][ T4322] hci_request_cancel_all+0xcc/0x300 [ 70.726483][ T4322] hci_dev_do_close+0x4e/0x1030 [ 70.731862][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 70.737680][ T4322] rfkill_set_block+0x1c9/0x3d0 [ 70.743233][ T4322] rfkill_fop_write+0x452/0x560 [ 70.748619][ T4322] vfs_write+0x30b/0xd60 [ 70.753482][ T4322] ksys_write+0x152/0x260 [ 70.758436][ T4322] do_syscall_64+0x4c/0xa0 [ 70.763468][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.770460][ T4322] [ 70.770460][ T4322] other info that might help us debug this: [ 70.770460][ T4322] [ 70.780774][ T4322] Chain exists of: [ 70.780774][ T4322] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 70.780774][ T4322] [ 70.796509][ T4322] Possible unsafe locking scenario: [ 70.796509][ T4322] [ 70.803964][ T4322] CPU0 CPU1 [ 70.809338][ T4322] ---- ---- [ 70.814693][ T4322] lock(rfkill_global_mutex); [ 70.819467][ T4322] lock(&data->open_mutex); [ 70.827086][ T4322] lock(rfkill_global_mutex); [ 70.834463][ T4322] lock((work_completion)(&hdev->bg_scan_update)); [ 70.841309][ T4322] [ 70.841309][ T4322] *** DEADLOCK *** [ 70.841309][ T4322] [ 70.849672][ T4322] 1 lock held by syz.0.17/4322: [ 70.854524][ T4322] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 70.864710][ T4322] [ 70.864710][ T4322] stack backtrace: [ 70.870618][ T4322] CPU: 0 PID: 4322 Comm: syz.0.17 Not tainted syzkaller #0 [ 70.877819][ T4322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 70.888841][ T4322] Call Trace: [ 70.892144][ T4322] [ 70.895068][ T4322] dump_stack_lvl+0x188/0x250 [ 70.899754][ T4322] ? load_image+0x400/0x400 [ 70.904373][ T4322] ? show_regs_print_info+0x20/0x20 [ 70.909568][ T4322] ? print_circular_bug+0x12b/0x1a0 [ 70.914772][ T4322] check_noncircular+0x296/0x330 [ 70.919706][ T4322] ? look_up_lock_class+0x71/0x110 [ 70.924827][ T4322] ? add_chain_block+0x940/0x940 [ 70.929846][ T4322] ? lockdep_lock+0xf1/0x1f0 [ 70.934538][ T4322] ? __lock_acquire+0x12e8/0x7d10 [ 70.939570][ T4322] ? mark_lock+0x94/0x320 [ 70.943887][ T4322] __lock_acquire+0x2c42/0x7d10 [ 70.948943][ T4322] ? verify_lock_unused+0x140/0x140 [ 70.954276][ T4322] ? verify_lock_unused+0x140/0x140 [ 70.959484][ T4322] ? mark_lock+0x94/0x320 [ 70.963943][ T4322] lock_acquire+0x19e/0x400 [ 70.968440][ T4322] ? __flush_work+0xfa/0x210 [ 70.973016][ T4322] ? __lock_acquire+0x7d10/0x7d10 [ 70.978125][ T4322] ? read_lock_is_recursive+0x10/0x10 [ 70.983572][ T4322] ? start_flush_work+0x776/0x820 [ 70.988602][ T4322] __flush_work+0x116/0x210 [ 70.993288][ T4322] ? __flush_work+0xfa/0x210 [ 70.997860][ T4322] ? flush_work+0x20/0x20 [ 71.002214][ T4322] ? try_to_grab_pending+0xfa/0x7f0 [ 71.007767][ T4322] ? mark_lock+0x94/0x320 [ 71.012099][ T4322] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 71.018076][ T4322] ? lock_chain_count+0x20/0x20 [ 71.022935][ T4322] ? mark_lock+0x94/0x320 [ 71.027251][ T4322] ? __cancel_work_timer+0x36a/0x560 [ 71.032620][ T4322] __cancel_work_timer+0x3f4/0x560 [ 71.037915][ T4322] ? cancel_work_sync+0x20/0x20 [ 71.042814][ T4322] ? __cancel_work+0x1f9/0x2e0 [ 71.048365][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 71.053816][ T4322] ? __cancel_work+0x27b/0x2e0 [ 71.058773][ T4322] ? cancel_work+0x20/0x20 [ 71.063280][ T4322] ? lock_chain_count+0x20/0x20 [ 71.068272][ T4322] hci_request_cancel_all+0xcc/0x300 [ 71.073706][ T4322] hci_dev_do_close+0x4e/0x1030 [ 71.078840][ T4322] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 71.084736][ T4322] ? _raw_spin_unlock+0x40/0x40 [ 71.089984][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 71.095415][ T4322] ? rcu_lock_release+0x20/0x20 [ 71.100368][ T4322] rfkill_set_block+0x1c9/0x3d0 [ 71.105379][ T4322] rfkill_fop_write+0x452/0x560 [ 71.110508][ T4322] ? rfkill_fop_read+0x520/0x520 [ 71.115456][ T4322] ? common_file_perm+0xc0/0x1c0 [ 71.120576][ T4322] ? fsnotify_perm+0x5d/0x560 [ 71.125518][ T4322] ? security_file_permission+0x75/0xa0 [ 71.131267][ T4322] ? rfkill_fop_read+0x520/0x520 [ 71.136218][ T4322] vfs_write+0x30b/0xd60 [ 71.140468][ T4322] ? file_end_write+0x250/0x250 [ 71.145338][ T4322] ? __context_tracking_exit+0x4c/0x80 [ 71.150804][ T4322] ? __lock_acquire+0x7d10/0x7d10 [ 71.155836][ T4322] ? __fdget_pos+0x1e2/0x370 [ 71.160434][ T4322] ksys_write+0x152/0x260 [ 71.164770][ T4322] ? __ia32_sys_read+0x80/0x80 [ 71.169545][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 71.174832][ T4322] do_syscall_64+0x4c/0xa0 [ 71.179356][ T4322] ? clear_bhb_loop+0x30/0x80 [ 71.184378][ T4322] ? clear_bhb_loop+0x30/0x80 [ 71.190600][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.196486][ T4322] RIP: 0033:0x7f981ad19e59 [ 71.201059][ T4322] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 71.220758][ T4322] RSP: 002b:00007fff845abd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.229334][ T4322] RAX: ffffffffffffffda RBX: 00007f981af92fa0 RCX: 00007f981ad19e59 [ 71.237478][ T4322] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 71.245748][ T4322] RBP: 00007f981adafd6f R08: 0000000000000000 R09: 0000000000000000 [ 71.253702][ T4322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 71.261652][ T4322] R13: 00007f981af92fac R14: 00007f981af92fa0 R15: 00007f981af92fa0 [ 71.269610][ T4322] [ 71.380157][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.386472][ T1421] ieee802154 phy1 wpan1: encryption failed: -22