Warning: Permanently added '10.128.1.71' (ED25519) to the list of known hosts. 2026/05/14 08:02:01 parsed 1 programs [ 67.020894][ T4200] cgroup: Unknown subsys name 'net' [ 67.142325][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.641467][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.515295][ T4227] chnl_net:caif_netlink_parms(): no params data found [ 70.560952][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.568743][ T4227] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.577503][ T4227] device bridge_slave_0 entered promiscuous mode [ 70.588937][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.596047][ T4227] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.604466][ T4227] device bridge_slave_1 entered promiscuous mode [ 70.630819][ T4227] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.642074][ T4227] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.663075][ T4227] team0: Port device team_slave_0 added [ 70.673402][ T4227] team0: Port device team_slave_1 added [ 70.689180][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.696134][ T4227] 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. [ 70.722306][ T4227] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.734936][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.742188][ T4227] 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. [ 70.768433][ T4227] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.800891][ T4227] device hsr_slave_0 entered promiscuous mode [ 70.808004][ T4227] device hsr_slave_1 entered promiscuous mode [ 70.934382][ T4227] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.947248][ T4227] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.958702][ T4227] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.968922][ T4227] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.000462][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.007771][ T4227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.016271][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.023636][ T4227] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.092108][ T4227] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.107548][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.121926][ T1237] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.130943][ T1237] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.140161][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.155435][ T4227] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.168405][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.178921][ T1237] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.186128][ T1237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.199606][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.208245][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.215345][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.242115][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.261328][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.271735][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.282024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.299979][ T4227] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.311597][ T4227] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.320264][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.450544][ T1432] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.457443][ T1432] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.475136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.484215][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.499142][ T4227] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.521529][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.530447][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.553064][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.563354][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.573365][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.582902][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.594038][ T4227] device veth0_vlan entered promiscuous mode [ 71.608229][ T4227] device veth1_vlan entered promiscuous mode [ 71.635123][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.644618][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.654346][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.663832][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.677258][ T4227] device veth0_macvtap entered promiscuous mode [ 71.688799][ T4227] device veth1_macvtap entered promiscuous mode [ 71.723145][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.731500][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.740292][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.749765][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.758625][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.778269][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.787863][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.797439][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.811586][ T4227] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.821390][ T4227] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.832067][ T4227] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.843670][ T4227] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.395958][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.178551][ T1237] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.189893][ T1237] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.200837][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.218622][ T1237] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.228527][ T1237] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.237098][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/14 08:02:09 executed programs: 0 [ 73.946112][ T4287] chnl_net:caif_netlink_parms(): no params data found [ 73.988185][ T4287] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.995499][ T4287] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.003698][ T4287] device bridge_slave_0 entered promiscuous mode [ 74.011894][ T4287] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.019242][ T4287] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.027530][ T4287] device bridge_slave_1 entered promiscuous mode [ 74.045880][ T4287] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.057626][ T4287] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.079609][ T4287] team0: Port device team_slave_0 added [ 74.087684][ T4287] team0: Port device team_slave_1 added [ 74.104663][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.111802][ T4287] 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. [ 74.137990][ T4287] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.149873][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.157049][ T4287] 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. [ 74.183491][ T4287] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.213070][ T4287] device hsr_slave_0 entered promiscuous mode [ 74.220715][ T4287] device hsr_slave_1 entered promiscuous mode [ 74.227791][ T4287] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.235653][ T4287] Cannot create hsr debugfs directory [ 74.843034][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.917495][ T4223] Bluetooth: hci0: command 0x0409 tx timeout [ 77.081443][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.132955][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.996527][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 78.021610][ T4287] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.031532][ T4287] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.041407][ T4287] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.051403][ T4287] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.113027][ T4287] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.141486][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.149703][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.171807][ T4287] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.181548][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.190787][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.200061][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.207305][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.219680][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.239902][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.249482][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.258974][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.266083][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.279502][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.295435][ T144] device hsr_slave_0 left promiscuous mode [ 78.302324][ T144] device hsr_slave_1 left promiscuous mode [ 78.310457][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.318170][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.328000][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.335491][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.343421][ T144] device bridge_slave_1 left promiscuous mode [ 78.350750][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.363113][ T144] device bridge_slave_0 left promiscuous mode [ 78.370312][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.386750][ T144] device veth1_macvtap left promiscuous mode [ 78.392905][ T144] device veth0_macvtap left promiscuous mode [ 78.400093][ T144] device veth1_vlan left promiscuous mode [ 78.406417][ T144] device veth0_vlan left promiscuous mode [ 78.549469][ T144] team0 (unregistering): Port device team_slave_1 removed [ 78.564450][ T144] team0 (unregistering): Port device team_slave_0 removed [ 78.580015][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.595059][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.649196][ T144] bond0 (unregistering): Released all slaves [ 78.696158][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.710199][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.719673][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.729105][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.746951][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.756250][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.767495][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.779662][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.790495][ T4287] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.802190][ T4287] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.811754][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.820855][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.923728][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.931314][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.943439][ T4287] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.962744][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.971818][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.988303][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.997474][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.006175][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.014377][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.027088][ T4287] device veth0_vlan entered promiscuous mode [ 79.039945][ T4287] device veth1_vlan entered promiscuous mode [ 79.064614][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.074537][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.084259][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.093493][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.104642][ T4287] device veth0_macvtap entered promiscuous mode [ 79.117705][ T4287] device veth1_macvtap entered promiscuous mode [ 79.137974][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.145593][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.156071][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.165167][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.174469][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.187243][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.195821][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.205784][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.219371][ T4287] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.229142][ T4287] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.239414][ T4287] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.248421][ T4287] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.312501][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.324922][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.333570][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.368412][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.376288][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.385563][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.572958][ T4339] [ 79.575344][ T4339] ====================================================== [ 79.582379][ T4339] WARNING: possible circular locking dependency detected [ 79.589426][ T4339] syzkaller #0 Not tainted [ 79.593864][ T4339] ------------------------------------------------------ [ 79.600905][ T4339] syz.0.17/4339 is trying to acquire lock: [ 79.606910][ T4339] ffff888077e3cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.617995][ T4339] [ 79.617995][ T4339] but task is already holding lock: [ 79.625374][ T4339] ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 79.635071][ T4339] [ 79.635071][ T4339] which lock already depends on the new lock. [ 79.635071][ T4339] [ 79.645486][ T4339] [ 79.645486][ T4339] the existing dependency chain (in reverse order) is: [ 79.654646][ T4339] [ 79.654646][ T4339] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.662703][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 79.668451][ T4339] mutex_lock_nested+0x17/0x20 [ 79.673844][ T4339] rfkill_register+0x33/0x980 [ 79.679058][ T4339] hci_register_dev+0x452/0x970 [ 79.684455][ T4339] vhci_create_device+0x32c/0x5c0 [ 79.690016][ T4339] vhci_write+0x391/0x450 [ 79.694880][ T4339] vfs_write+0x745/0xd60 [ 79.699658][ T4339] ksys_write+0x152/0x260 [ 79.704522][ T4339] do_syscall_64+0x4c/0xa0 [ 79.709477][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.715904][ T4339] [ 79.715904][ T4339] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 79.723745][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 79.729482][ T4339] mutex_lock_nested+0x17/0x20 [ 79.734785][ T4339] vhci_send_frame+0x88/0x100 [ 79.740218][ T4339] hci_send_frame+0x1a9/0x2e0 [ 79.745421][ T4339] hci_tx_work+0x9f9/0x1710 [ 79.750447][ T4339] process_one_work+0x85f/0x1010 [ 79.755909][ T4339] worker_thread+0xaa6/0x1290 [ 79.761226][ T4339] kthread+0x436/0x520 [ 79.765827][ T4339] ret_from_fork+0x1f/0x30 [ 79.770863][ T4339] [ 79.770863][ T4339] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 79.780180][ T4339] __flush_work+0x116/0x210 [ 79.785387][ T4339] hci_dev_do_close+0x1e7/0x1030 [ 79.790878][ T4339] hci_unregister_dev+0x2d7/0x580 [ 79.796544][ T4339] vhci_release+0x73/0xc0 [ 79.801404][ T4339] __fput+0x234/0x930 [ 79.806018][ T4339] task_work_run+0x125/0x1a0 [ 79.811129][ T4339] do_exit+0x626/0x20c0 [ 79.815805][ T4339] do_group_exit+0x12e/0x300 [ 79.820913][ T4339] get_signal+0x6ca/0x12c0 [ 79.825852][ T4339] arch_do_signal_or_restart+0xe7/0x12c0 [ 79.832028][ T4339] exit_to_user_mode_loop+0x9e/0x130 [ 79.837834][ T4339] exit_to_user_mode_prepare+0xee/0x180 [ 79.843904][ T4339] syscall_exit_to_user_mode+0x16/0x40 [ 79.849889][ T4339] do_syscall_64+0x58/0xa0 [ 79.854913][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.861324][ T4339] [ 79.861324][ T4339] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 79.868967][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 79.874692][ T4339] mutex_lock_nested+0x17/0x20 [ 79.879976][ T4339] bg_scan_update+0x44/0x3b0 [ 79.885092][ T4339] process_one_work+0x85f/0x1010 [ 79.890554][ T4339] worker_thread+0xaa6/0x1290 [ 79.895756][ T4339] kthread+0x436/0x520 [ 79.900348][ T4339] ret_from_fork+0x1f/0x30 [ 79.905372][ T4339] [ 79.905372][ T4339] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.915274][ T4339] __lock_acquire+0x2c42/0x7d10 [ 79.920673][ T4339] lock_acquire+0x19e/0x400 [ 79.925797][ T4339] __flush_work+0x116/0x210 [ 79.930818][ T4339] __cancel_work_timer+0x3f4/0x560 [ 79.936455][ T4339] hci_request_cancel_all+0xcc/0x300 [ 79.942262][ T4339] hci_dev_do_close+0x4e/0x1030 [ 79.947668][ T4339] hci_rfkill_set_block+0x10a/0x190 [ 79.953479][ T4339] rfkill_set_block+0x1c9/0x3d0 [ 79.958868][ T4339] rfkill_fop_write+0x452/0x560 [ 79.964244][ T4339] vfs_write+0x30b/0xd60 [ 79.969010][ T4339] ksys_write+0x152/0x260 [ 79.973860][ T4339] do_syscall_64+0x4c/0xa0 [ 79.978801][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.985222][ T4339] [ 79.985222][ T4339] other info that might help us debug this: [ 79.985222][ T4339] [ 79.995448][ T4339] Chain exists of: [ 79.995448][ T4339] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.995448][ T4339] [ 80.011300][ T4339] Possible unsafe locking scenario: [ 80.011300][ T4339] [ 80.018749][ T4339] CPU0 CPU1 [ 80.024124][ T4339] ---- ---- [ 80.029487][ T4339] lock(rfkill_global_mutex); [ 80.034251][ T4339] lock(&data->open_mutex); [ 80.041362][ T4339] lock(rfkill_global_mutex); [ 80.048857][ T4339] lock((work_completion)(&hdev->bg_scan_update)); [ 80.055470][ T4339] [ 80.055470][ T4339] *** DEADLOCK *** [ 80.055470][ T4339] [ 80.063878][ T4339] 1 lock held by syz.0.17/4339: [ 80.068726][ T4339] #0: ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.078823][ T4339] [ 80.078823][ T4339] stack backtrace: [ 80.084715][ T4339] CPU: 1 PID: 4339 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.091914][ T4339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.102058][ T4339] Call Trace: [ 80.105339][ T4339] [ 80.108282][ T4339] dump_stack_lvl+0x188/0x250 [ 80.112963][ T4339] ? load_image+0x400/0x400 [ 80.117469][ T4339] ? show_regs_print_info+0x20/0x20 [ 80.122671][ T4339] ? print_circular_bug+0x12b/0x1a0 [ 80.127876][ T4339] check_noncircular+0x296/0x330 [ 80.132870][ T4339] ? look_up_lock_class+0x71/0x110 [ 80.138247][ T4339] ? add_chain_block+0x940/0x940 [ 80.143194][ T4339] ? lockdep_lock+0xf1/0x1f0 [ 80.147794][ T4339] ? __lock_acquire+0x12e8/0x7d10 [ 80.152971][ T4339] ? mark_lock+0x94/0x320 [ 80.157502][ T4339] __lock_acquire+0x2c42/0x7d10 [ 80.162364][ T4339] ? verify_lock_unused+0x140/0x140 [ 80.167570][ T4339] ? verify_lock_unused+0x140/0x140 [ 80.172785][ T4339] ? mark_lock+0x94/0x320 [ 80.177125][ T4339] lock_acquire+0x19e/0x400 [ 80.181726][ T4339] ? __flush_work+0xfa/0x210 [ 80.186316][ T4339] ? __lock_acquire+0x7d10/0x7d10 [ 80.191354][ T4339] ? read_lock_is_recursive+0x10/0x10 [ 80.196823][ T4339] ? start_flush_work+0x776/0x820 [ 80.201955][ T4339] __flush_work+0x116/0x210 [ 80.206458][ T4339] ? __flush_work+0xfa/0x210 [ 80.211046][ T4339] ? flush_work+0x20/0x20 [ 80.215374][ T4339] ? try_to_grab_pending+0xfa/0x7f0 [ 80.220571][ T4339] ? mark_lock+0x94/0x320 [ 80.224900][ T4339] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 80.230883][ T4339] ? lock_chain_count+0x20/0x20 [ 80.235743][ T4339] ? mark_lock+0x94/0x320 [ 80.240072][ T4339] ? __cancel_work_timer+0x36a/0x560 [ 80.245355][ T4339] __cancel_work_timer+0x3f4/0x560 [ 80.250467][ T4339] ? cancel_work_sync+0x20/0x20 [ 80.255313][ T4339] ? __cancel_work+0x1f9/0x2e0 [ 80.260077][ T4339] ? lockdep_hardirqs_on+0x94/0x140 [ 80.265274][ T4339] ? __cancel_work+0x27b/0x2e0 [ 80.270041][ T4339] ? cancel_work+0x20/0x20 [ 80.274460][ T4339] ? lock_chain_count+0x20/0x20 [ 80.279316][ T4339] hci_request_cancel_all+0xcc/0x300 [ 80.284606][ T4339] hci_dev_do_close+0x4e/0x1030 [ 80.289460][ T4339] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 80.295358][ T4339] ? _raw_spin_unlock+0x40/0x40 [ 80.300219][ T4339] hci_rfkill_set_block+0x10a/0x190 [ 80.305421][ T4339] ? rcu_lock_release+0x20/0x20 [ 80.310304][ T4339] rfkill_set_block+0x1c9/0x3d0 [ 80.315163][ T4339] rfkill_fop_write+0x452/0x560 [ 80.320275][ T4339] ? rfkill_fop_read+0x520/0x520 [ 80.325215][ T4339] ? common_file_perm+0x140/0x1c0 [ 80.330332][ T4339] ? fsnotify_perm+0x5d/0x560 [ 80.335013][ T4339] ? security_file_permission+0x75/0xa0 [ 80.340655][ T4339] ? rfkill_fop_read+0x520/0x520 [ 80.345747][ T4339] vfs_write+0x30b/0xd60 [ 80.350086][ T4339] ? file_end_write+0x250/0x250 [ 80.354949][ T4339] ? __context_tracking_exit+0x4c/0x80 [ 80.360424][ T4339] ? __lock_acquire+0x7d10/0x7d10 [ 80.365489][ T4339] ? __fdget_pos+0x1e2/0x370 [ 80.370113][ T4339] ksys_write+0x152/0x260 [ 80.374468][ T4339] ? __ia32_sys_read+0x80/0x80 [ 80.379244][ T4339] ? lockdep_hardirqs_on+0x94/0x140 [ 80.384536][ T4339] do_syscall_64+0x4c/0xa0 [ 80.388960][ T4339] ? clear_bhb_loop+0x30/0x80 [ 80.393656][ T4339] ? clear_bhb_loop+0x30/0x80 [ 80.398333][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.404230][ T4339] RIP: 0033:0x7f4c28d8ae59 [ 80.408648][ T4339] 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 [ 80.428259][ T4339] RSP: 002b:00007ffe838d4108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.436683][ T4339] RAX: ffffffffffffffda RBX: 00007f4c29003fa0 RCX: 00007f4c28d8ae59 [ 80.444746][ T4339] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 80.452725][ T4339] RBP: 00007f4c28e20d6f R08: 0000000000000000 R09: 0000000000000000 [ 80.460704][ T4339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.468695][ T4339] R13: 00007f4c29003fac R14: 00007f4c29003fa0 R15: 00007f4c29003fa0 [ 80.476765][ T4339] [ 80.502979][ T13] Bluetooth: hci0: command 0x040f tx timeout