Warning: Permanently added '10.128.1.156' (ED25519) to the list of known hosts. 2026/05/26 19:03:12 parsed 1 programs [ 68.811584][ T4201] cgroup: Unknown subsys name 'net' [ 68.936764][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.616458][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.443296][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.450769][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 74.524888][ T4259] chnl_net:caif_netlink_parms(): no params data found [ 74.616390][ T4259] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.626457][ T4259] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.637089][ T4259] device bridge_slave_0 entered promiscuous mode [ 74.648758][ T4259] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.657219][ T4259] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.666855][ T4259] device bridge_slave_1 entered promiscuous mode [ 74.694275][ T4259] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.706907][ T4259] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.732226][ T4259] team0: Port device team_slave_0 added [ 74.741355][ T4259] team0: Port device team_slave_1 added [ 74.782828][ T4259] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.791084][ T4259] 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. [ 74.823153][ T4259] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.837171][ T4259] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.845589][ T4259] 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. [ 74.877626][ T4259] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.931524][ T4259] device hsr_slave_0 entered promiscuous mode [ 74.940224][ T4259] device hsr_slave_1 entered promiscuous mode [ 75.081323][ T4259] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.095732][ T4259] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.106813][ T4259] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.119167][ T4259] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.205302][ T4259] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.243189][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.254793][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.269746][ T4259] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.303721][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.314644][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.325562][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.335321][ T382] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.348665][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.376528][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.386896][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.398239][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.406047][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.419552][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.436130][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.467988][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.478613][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.489237][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.500685][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.514746][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.529349][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.538876][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.573490][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.583453][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.595570][ T4259] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.737952][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.746605][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.762340][ T4259] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.783755][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.793050][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.815091][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.823781][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.835546][ T4259] device veth0_vlan entered promiscuous mode [ 75.849747][ T4259] device veth1_vlan entered promiscuous mode [ 75.857572][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.867346][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.876208][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.903386][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.912986][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.928228][ T4259] device veth0_macvtap entered promiscuous mode [ 75.942676][ T4259] device veth1_macvtap entered promiscuous mode [ 75.967248][ T4259] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.975994][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.986340][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.996281][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.011162][ T4259] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.020014][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.031134][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.043176][ T4259] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.054377][ T4259] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.063700][ T4259] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.074192][ T4259] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.639578][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.657291][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.687756][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.699597][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.709909][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.719624][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/26 19:03:23 executed programs: 0 [ 77.459527][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.482616][ T4306] chnl_net:caif_netlink_parms(): no params data found [ 77.533076][ T4306] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.542996][ T4306] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.552393][ T4306] device bridge_slave_0 entered promiscuous mode [ 77.561231][ T4306] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.568905][ T4306] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.578168][ T4306] device bridge_slave_1 entered promiscuous mode [ 77.599697][ T4306] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.613138][ T4306] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.634253][ T4306] team0: Port device team_slave_0 added [ 77.644027][ T4306] team0: Port device team_slave_1 added [ 77.662618][ T4306] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.670676][ T4306] 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. [ 77.698580][ T4306] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.714078][ T4306] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.721720][ T4306] 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. [ 77.751105][ T4306] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.787612][ T4306] device hsr_slave_0 entered promiscuous mode [ 77.796956][ T4306] device hsr_slave_1 entered promiscuous mode [ 77.806132][ T4306] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.816761][ T4306] Cannot create hsr debugfs directory [ 79.441628][ T4276] Bluetooth: hci0: command 0x0409 tx timeout [ 80.497945][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.521394][ T4205] Bluetooth: hci0: command 0x041b tx timeout [ 81.635233][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.677520][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.702867][ T1108] cfg80211: failed to load regulatory.db [ 82.670815][ T4306] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.686520][ T4306] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.711972][ T4306] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.723532][ T4306] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.789425][ T4306] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.805611][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.815619][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.844695][ T4306] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.857695][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.867627][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.877382][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.886058][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.896253][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.926506][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.938496][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.949755][ T4283] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.958769][ T4283] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.983563][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.999831][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.011795][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.022598][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.034272][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.046269][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.056062][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.086431][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.097250][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.110332][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.121690][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.137696][ T4306] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.246963][ T9] device hsr_slave_0 left promiscuous mode [ 83.255261][ T9] device hsr_slave_1 left promiscuous mode [ 83.266967][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.275632][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.287183][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.296987][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.307938][ T9] device bridge_slave_1 left promiscuous mode [ 83.315709][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.329954][ T9] device bridge_slave_0 left promiscuous mode [ 83.340170][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.360623][ T9] device veth1_macvtap left promiscuous mode [ 83.368389][ T9] device veth0_macvtap left promiscuous mode [ 83.376500][ T9] device veth1_vlan left promiscuous mode [ 83.383558][ T9] device veth0_vlan left promiscuous mode [ 83.553022][ T9] team0 (unregistering): Port device team_slave_1 removed [ 83.567888][ T9] team0 (unregistering): Port device team_slave_0 removed [ 83.584014][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.598923][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.600624][ T4276] Bluetooth: hci0: command 0x040f tx timeout [ 83.665816][ T9] bond0 (unregistering): Released all slaves [ 83.723212][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.731967][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.745825][ T4306] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.770150][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.780078][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.813935][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.826460][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.836785][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.847481][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.860625][ T4306] device veth0_vlan entered promiscuous mode [ 83.888581][ T4306] device veth1_vlan entered promiscuous mode [ 83.907738][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.916818][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.926362][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.937156][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.950976][ T4306] device veth0_macvtap entered promiscuous mode [ 83.969412][ T4306] device veth1_macvtap entered promiscuous mode [ 83.985913][ T4306] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.997305][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.006780][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.016476][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.027326][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.042044][ T4306] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.053471][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.063651][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.077153][ T4306] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.087913][ T4306] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.097993][ T4306] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.109010][ T4306] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.193773][ T382] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.211844][ T382] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.236128][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.272712][ T4283] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.290536][ T4283] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.299215][ T382] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.436906][ T4359] [ 84.439568][ T4359] ====================================================== [ 84.447986][ T4359] WARNING: possible circular locking dependency detected [ 84.458052][ T4359] syzkaller #0 Not tainted [ 84.463339][ T4359] ------------------------------------------------------ [ 84.471854][ T4359] syz.0.17/4359 is trying to acquire lock: [ 84.478451][ T4359] ffff888024fb4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 84.491980][ T4359] [ 84.491980][ T4359] but task is already holding lock: [ 84.500847][ T4359] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.512901][ T4359] [ 84.512901][ T4359] which lock already depends on the new lock. [ 84.512901][ T4359] [ 84.524119][ T4359] [ 84.524119][ T4359] the existing dependency chain (in reverse order) is: [ 84.534875][ T4359] [ 84.534875][ T4359] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.543627][ T4359] __mutex_lock_common+0x1e3/0x2400 [ 84.550810][ T4359] mutex_lock_nested+0x17/0x20 [ 84.557499][ T4359] rfkill_register+0x33/0x980 [ 84.562948][ T4359] hci_register_dev+0x452/0x970 [ 84.568933][ T4359] vhci_create_device+0x32c/0x5c0 [ 84.574712][ T4359] vhci_write+0x391/0x450 [ 84.579817][ T4359] vfs_write+0x745/0xd60 [ 84.585404][ T4359] ksys_write+0x152/0x260 [ 84.590289][ T4359] do_syscall_64+0x4c/0xa0 [ 84.595667][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.603614][ T4359] [ 84.603614][ T4359] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.613743][ T4359] __mutex_lock_common+0x1e3/0x2400 [ 84.620131][ T4359] mutex_lock_nested+0x17/0x20 [ 84.626615][ T4359] vhci_send_frame+0x88/0x100 [ 84.632725][ T4359] hci_send_frame+0x1a9/0x2e0 [ 84.640958][ T4359] hci_tx_work+0x9f9/0x1710 [ 84.647374][ T4359] process_one_work+0x85f/0x1010 [ 84.655613][ T4359] worker_thread+0xaa6/0x1290 [ 84.664344][ T4359] kthread+0x436/0x520 [ 84.672029][ T4359] ret_from_fork+0x1f/0x30 [ 84.678924][ T4359] [ 84.678924][ T4359] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.689850][ T4359] __flush_work+0x116/0x210 [ 84.696935][ T4359] hci_dev_do_close+0x1e7/0x1030 [ 84.703314][ T4359] hci_unregister_dev+0x2d7/0x580 [ 84.710486][ T4359] vhci_release+0x73/0xc0 [ 84.718041][ T4359] __fput+0x234/0x930 [ 84.723614][ T4359] task_work_run+0x125/0x1a0 [ 84.729569][ T4359] do_exit+0x626/0x20c0 [ 84.735274][ T4359] do_group_exit+0x12e/0x300 [ 84.741178][ T4359] get_signal+0x6d6/0x12d0 [ 84.747201][ T4359] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.754185][ T4359] exit_to_user_mode_loop+0x9e/0x130 [ 84.760533][ T4359] exit_to_user_mode_prepare+0xee/0x180 [ 84.767547][ T4359] syscall_exit_to_user_mode+0x16/0x40 [ 84.774807][ T4359] do_syscall_64+0x58/0xa0 [ 84.780162][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.788429][ T4359] [ 84.788429][ T4359] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.797165][ T4359] __mutex_lock_common+0x1e3/0x2400 [ 84.803367][ T4359] mutex_lock_nested+0x17/0x20 [ 84.809197][ T4359] bg_scan_update+0x44/0x3b0 [ 84.814898][ T4359] process_one_work+0x85f/0x1010 [ 84.820723][ T4359] worker_thread+0xaa6/0x1290 [ 84.826318][ T4359] kthread+0x436/0x520 [ 84.831998][ T4359] ret_from_fork+0x1f/0x30 [ 84.837407][ T4359] [ 84.837407][ T4359] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.849196][ T4359] __lock_acquire+0x2c42/0x7d10 [ 84.855153][ T4359] lock_acquire+0x19e/0x400 [ 84.860667][ T4359] __flush_work+0x116/0x210 [ 84.865801][ T4359] __cancel_work_timer+0x3f4/0x560 [ 84.871901][ T4359] hci_request_cancel_all+0xcc/0x300 [ 84.877826][ T4359] hci_dev_do_close+0x4e/0x1030 [ 84.883314][ T4359] hci_rfkill_set_block+0x10a/0x190 [ 84.889143][ T4359] rfkill_set_block+0x1c9/0x3d0 [ 84.895312][ T4359] rfkill_fop_write+0x452/0x560 [ 84.901050][ T4359] vfs_write+0x30b/0xd60 [ 84.906960][ T4359] ksys_write+0x152/0x260 [ 84.912601][ T4359] do_syscall_64+0x4c/0xa0 [ 84.918559][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.925908][ T4359] [ 84.925908][ T4359] other info that might help us debug this: [ 84.925908][ T4359] [ 84.937131][ T4359] Chain exists of: [ 84.937131][ T4359] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.937131][ T4359] [ 84.955306][ T4359] Possible unsafe locking scenario: [ 84.955306][ T4359] [ 84.963759][ T4359] CPU0 CPU1 [ 84.970291][ T4359] ---- ---- [ 84.975688][ T4359] lock(rfkill_global_mutex); [ 84.982801][ T4359] lock(&data->open_mutex); [ 84.994653][ T4359] lock(rfkill_global_mutex); [ 85.002959][ T4359] lock((work_completion)(&hdev->bg_scan_update)); [ 85.010312][ T4359] [ 85.010312][ T4359] *** DEADLOCK *** [ 85.010312][ T4359] [ 85.018927][ T4359] 1 lock held by syz.0.17/4359: [ 85.023818][ T4359] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 85.034556][ T4359] [ 85.034556][ T4359] stack backtrace: [ 85.040729][ T4359] CPU: 0 PID: 4359 Comm: syz.0.17 Not tainted syzkaller #0 [ 85.048306][ T4359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 85.058900][ T4359] Call Trace: [ 85.062569][ T4359] [ 85.066643][ T4359] dump_stack_lvl+0x188/0x250 [ 85.071661][ T4359] ? load_image+0x400/0x400 [ 85.076736][ T4359] ? show_regs_print_info+0x20/0x20 [ 85.082275][ T4359] ? print_circular_bug+0x12b/0x1a0 [ 85.087915][ T4359] check_noncircular+0x296/0x330 [ 85.093152][ T4359] ? look_up_lock_class+0x71/0x110 [ 85.098791][ T4359] ? add_chain_block+0x940/0x940 [ 85.104178][ T4359] ? lockdep_lock+0xf1/0x1f0 [ 85.109319][ T4359] ? __lock_acquire+0x12e8/0x7d10 [ 85.114582][ T4359] ? mark_lock+0x94/0x320 [ 85.119145][ T4359] __lock_acquire+0x2c42/0x7d10 [ 85.124381][ T4359] ? verify_lock_unused+0x140/0x140 [ 85.129989][ T4359] ? verify_lock_unused+0x140/0x140 [ 85.135674][ T4359] ? mark_lock+0x94/0x320 [ 85.140220][ T4359] lock_acquire+0x19e/0x400 [ 85.145095][ T4359] ? __flush_work+0xfa/0x210 [ 85.149983][ T4359] ? __lock_acquire+0x7d10/0x7d10 [ 85.156547][ T4359] ? read_lock_is_recursive+0x10/0x10 [ 85.162437][ T4359] ? start_flush_work+0x776/0x820 [ 85.167942][ T4359] __flush_work+0x116/0x210 [ 85.173248][ T4359] ? __flush_work+0xfa/0x210 [ 85.179043][ T4359] ? flush_work+0x20/0x20 [ 85.184472][ T4359] ? try_to_grab_pending+0xfa/0x7f0 [ 85.189984][ T4359] ? mark_lock+0x94/0x320 [ 85.194456][ T4359] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.200697][ T4359] ? lock_chain_count+0x20/0x20 [ 85.206058][ T4359] ? mark_lock+0x94/0x320 [ 85.211042][ T4359] ? __cancel_work_timer+0x36a/0x560 [ 85.217183][ T4359] __cancel_work_timer+0x3f4/0x560 [ 85.223372][ T4359] ? cancel_work_sync+0x20/0x20 [ 85.229611][ T4359] ? __cancel_work+0x1f9/0x2e0 [ 85.235272][ T4359] ? lockdep_hardirqs_on+0x94/0x140 [ 85.240756][ T4359] ? __cancel_work+0x27b/0x2e0 [ 85.245996][ T4359] ? cancel_work+0x20/0x20 [ 85.250617][ T4359] ? lock_chain_count+0x20/0x20 [ 85.256097][ T4359] hci_request_cancel_all+0xcc/0x300 [ 85.261761][ T4359] hci_dev_do_close+0x4e/0x1030 [ 85.267242][ T4359] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 85.273173][ T4359] ? _raw_spin_unlock+0x40/0x40 [ 85.278803][ T4359] hci_rfkill_set_block+0x10a/0x190 [ 85.285611][ T4359] ? rcu_lock_release+0x20/0x20 [ 85.291146][ T4359] rfkill_set_block+0x1c9/0x3d0 [ 85.296225][ T4359] rfkill_fop_write+0x452/0x560 [ 85.301450][ T4359] ? rfkill_fop_read+0x520/0x520 [ 85.306731][ T4359] ? common_file_perm+0xc0/0x1c0 [ 85.312401][ T4359] ? fsnotify_perm+0x5d/0x560 [ 85.317494][ T4359] ? security_file_permission+0x75/0xa0 [ 85.324035][ T4359] ? rfkill_fop_read+0x520/0x520 [ 85.329781][ T4359] vfs_write+0x30b/0xd60 [ 85.335134][ T4359] ? file_end_write+0x250/0x250 [ 85.340493][ T4359] ? __context_tracking_exit+0x4c/0x80 [ 85.346157][ T4359] ? __lock_acquire+0x7d10/0x7d10 [ 85.351610][ T4359] ? __fdget_pos+0x1e2/0x370 [ 85.356426][ T4359] ksys_write+0x152/0x260 [ 85.360789][ T4359] ? __ia32_sys_read+0x80/0x80 [ 85.365859][ T4359] ? lockdep_hardirqs_on+0x94/0x140 [ 85.371378][ T4359] do_syscall_64+0x4c/0xa0 [ 85.375907][ T4359] ? clear_bhb_loop+0x30/0x80 [ 85.380683][ T4359] ? clear_bhb_loop+0x30/0x80 [ 85.385519][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.392082][ T4359] RIP: 0033:0x7f781af42e59 [ 85.396889][ T4359] 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 [ 85.416996][ T4359] RSP: 002b:00007ffd66441bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.426521][ T4359] RAX: ffffffffffffffda RBX: 00007f781b1bbfa0 RCX: 00007f781af42e59 [ 85.435625][ T4359] RDX: 0000000000000008 RSI: 0000200000001280 RDI: 0000000000000003 [ 85.445399][ T4359] RBP: 00007f781afd8d6f R08: 0000000000000000 R09: 0000000000000000 [ 85.457007][ T4359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.466026][ T4359] R13: 00007f781b1bbfac R14: 00007f781b1bbfa0 R15: 00007f781b1bbfa0 [ 85.475536][ T4359]