Warning: Permanently added '10.128.0.52' (ED25519) to the list of known hosts. 2026/05/24 17:15:15 parsed 1 programs [ 69.896037][ T4201] cgroup: Unknown subsys name 'net' [ 70.018289][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.465295][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.471826][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.573288][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.418252][ T4286] chnl_net:caif_netlink_parms(): no params data found [ 75.465965][ T4286] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.473716][ T4286] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.481637][ T4286] device bridge_slave_0 entered promiscuous mode [ 75.491263][ T4286] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.498476][ T4286] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.507281][ T4286] device bridge_slave_1 entered promiscuous mode [ 75.528640][ T4286] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.539747][ T4286] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.563480][ T4286] team0: Port device team_slave_0 added [ 75.571503][ T4286] team0: Port device team_slave_1 added [ 75.589285][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.596317][ T4286] 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. [ 75.622360][ T4286] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.635396][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.642606][ T4286] 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. [ 75.668578][ T4286] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.700445][ T4286] device hsr_slave_0 entered promiscuous mode [ 75.708287][ T4286] device hsr_slave_1 entered promiscuous mode [ 75.847156][ T4286] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.858283][ T4286] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.871497][ T4286] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.880857][ T4286] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.927577][ T4286] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.934824][ T4286] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.943012][ T4286] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.950115][ T4286] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.018762][ T4286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.035327][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.046992][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.055294][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.065640][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.079380][ T4286] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.106679][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.115820][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.122953][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.157651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.166337][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.173660][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.214502][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.224657][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.239645][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.266573][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.280072][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.292367][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.414526][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.422529][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.435898][ T4286] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.459280][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.474103][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.496371][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.506038][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.519891][ T4286] device veth0_vlan entered promiscuous mode [ 76.532527][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.540508][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.556568][ T4286] device veth1_vlan entered promiscuous mode [ 76.580987][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.591210][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.600797][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.610745][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.623766][ T4286] device veth0_macvtap entered promiscuous mode [ 76.635124][ T4286] device veth1_macvtap entered promiscuous mode [ 76.656791][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.668255][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.677768][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.686942][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.696017][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.708638][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.718246][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.728931][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.741482][ T4286] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.755144][ T4286] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.764514][ T4286] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.774830][ T4286] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.895070][ T4286] syz-executor (4286) used greatest stack depth: 19480 bytes left [ 77.006672][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.021448][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.034428][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.061875][ T4300] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.069795][ T4300] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.080721][ T1273] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/24 17:15:25 executed programs: 0 [ 78.003065][ T4307] chnl_net:caif_netlink_parms(): no params data found [ 78.063534][ T4307] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.070727][ T4307] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.079660][ T4307] device bridge_slave_0 entered promiscuous mode [ 78.089769][ T4307] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.097351][ T4307] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.106454][ T4307] device bridge_slave_1 entered promiscuous mode [ 78.140037][ T4307] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.154824][ T4307] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.187388][ T4307] team0: Port device team_slave_0 added [ 78.197957][ T4307] team0: Port device team_slave_1 added [ 78.221417][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.228529][ 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. [ 78.255074][ T4307] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.268326][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.275808][ 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. [ 78.303655][ T4307] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.341895][ T4307] device hsr_slave_0 entered promiscuous mode [ 78.349176][ T4307] device hsr_slave_1 entered promiscuous mode [ 78.355999][ T4307] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 78.364186][ T4307] Cannot create hsr debugfs directory [ 78.402499][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.942792][ T4203] Bluetooth: hci0: command 0x0409 tx timeout [ 81.799227][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.869118][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.920137][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.033473][ T1326] Bluetooth: hci0: command 0x041b tx timeout [ 82.802199][ T4307] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.813668][ T4307] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.824144][ T4307] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.834610][ T4307] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.916768][ T4307] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.930295][ T1273] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.938559][ T1273] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.960522][ T4307] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.971023][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.980325][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.990134][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.997280][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.006962][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.037622][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.046852][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.055746][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.062887][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.075479][ T4300] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.098300][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.109229][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.123134][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.149392][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.157897][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.166704][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.175889][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.184898][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.195594][ T4300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.204255][ T4300] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.218552][ T4307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.236802][ T155] device hsr_slave_0 left promiscuous mode [ 83.245968][ T155] device hsr_slave_1 left promiscuous mode [ 83.252880][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.260356][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.271244][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.279032][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.287317][ T155] device bridge_slave_1 left promiscuous mode [ 83.294560][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.308771][ T155] device bridge_slave_0 left promiscuous mode [ 83.315070][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.335620][ T155] device veth1_macvtap left promiscuous mode [ 83.341982][ T155] device veth0_macvtap left promiscuous mode [ 83.348996][ T155] device veth1_vlan left promiscuous mode [ 83.355949][ T155] device veth0_vlan left promiscuous mode [ 83.527648][ T155] team0 (unregistering): Port device team_slave_1 removed [ 83.541159][ T155] team0 (unregistering): Port device team_slave_0 removed [ 83.557183][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.573802][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.630946][ T155] bond0 (unregistering): Released all slaves [ 83.824254][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.831825][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.847759][ T4307] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.887443][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.896557][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.909070][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.918161][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.928304][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.937122][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.947616][ T4307] device veth0_vlan entered promiscuous mode [ 83.965330][ T4307] device veth1_vlan entered promiscuous mode [ 83.986541][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.995700][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.006613][ T4307] device veth0_macvtap entered promiscuous mode [ 84.017060][ T4307] device veth1_macvtap entered promiscuous mode [ 84.040179][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.049205][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.059030][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.068043][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.078089][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.090390][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.100934][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.109164][ T4331] Bluetooth: hci0: command 0x040f tx timeout [ 84.122790][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.147462][ T4307] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.156575][ T4307] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.165745][ T4307] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.175315][ T4307] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.249558][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.268240][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.276722][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.300810][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.309213][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.318601][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/24 17:15:32 executed programs: 2 [ 84.435817][ T4361] [ 84.438205][ T4361] ====================================================== [ 84.445249][ T4361] WARNING: possible circular locking dependency detected [ 84.452307][ T4361] syzkaller #0 Not tainted [ 84.456864][ T4361] ------------------------------------------------------ [ 84.463896][ T4361] syz.0.17/4361 is trying to acquire lock: [ 84.469716][ T4361] ffff8880776f0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 84.480827][ T4361] [ 84.480827][ T4361] but task is already holding lock: [ 84.488301][ T4361] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.497994][ T4361] [ 84.497994][ T4361] which lock already depends on the new lock. [ 84.497994][ T4361] [ 84.508413][ T4361] [ 84.508413][ T4361] the existing dependency chain (in reverse order) is: [ 84.517448][ T4361] [ 84.517448][ T4361] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.525560][ T4361] __mutex_lock_common+0x1e3/0x2400 [ 84.531320][ T4361] mutex_lock_nested+0x17/0x20 [ 84.536643][ T4361] rfkill_register+0x33/0x980 [ 84.541875][ T4361] hci_register_dev+0x452/0x970 [ 84.547276][ T4361] vhci_create_device+0x32c/0x5c0 [ 84.552957][ T4361] vhci_write+0x391/0x450 [ 84.557860][ T4361] vfs_write+0x745/0xd60 [ 84.562668][ T4361] ksys_write+0x152/0x260 [ 84.567642][ T4361] do_syscall_64+0x4c/0xa0 [ 84.572608][ T4361] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.579146][ T4361] [ 84.579146][ T4361] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.587129][ T4361] __mutex_lock_common+0x1e3/0x2400 [ 84.592981][ T4361] mutex_lock_nested+0x17/0x20 [ 84.598303][ T4361] vhci_send_frame+0x88/0x100 [ 84.603541][ T4361] hci_send_frame+0x1a9/0x2e0 [ 84.608774][ T4361] hci_tx_work+0x9f9/0x1710 [ 84.613915][ T4361] process_one_work+0x85f/0x1010 [ 84.619406][ T4361] worker_thread+0xaa6/0x1290 [ 84.624645][ T4361] kthread+0x436/0x520 [ 84.629269][ T4361] ret_from_fork+0x1f/0x30 [ 84.634331][ T4361] [ 84.634331][ T4361] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.643579][ T4361] __flush_work+0x116/0x210 [ 84.648636][ T4361] hci_dev_do_close+0x1e7/0x1030 [ 84.654134][ T4361] hci_unregister_dev+0x2d7/0x580 [ 84.659714][ T4361] vhci_release+0x73/0xc0 [ 84.664612][ T4361] __fput+0x234/0x930 [ 84.669158][ T4361] task_work_run+0x125/0x1a0 [ 84.674317][ T4361] do_exit+0x626/0x20c0 [ 84.679021][ T4361] do_group_exit+0x12e/0x300 [ 84.684153][ T4361] get_signal+0x6d6/0x12d0 [ 84.689118][ T4361] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.695305][ T4361] exit_to_user_mode_loop+0x9e/0x130 [ 84.701142][ T4361] exit_to_user_mode_prepare+0xee/0x180 [ 84.707253][ T4361] syscall_exit_to_user_mode+0x16/0x40 [ 84.713263][ T4361] do_syscall_64+0x58/0xa0 [ 84.718228][ T4361] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.724688][ T4361] [ 84.724688][ T4361] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.732471][ T4361] __mutex_lock_common+0x1e3/0x2400 [ 84.738242][ T4361] mutex_lock_nested+0x17/0x20 [ 84.743571][ T4361] bg_scan_update+0x44/0x3b0 [ 84.748730][ T4361] process_one_work+0x85f/0x1010 [ 84.754225][ T4361] worker_thread+0xaa6/0x1290 [ 84.759469][ T4361] kthread+0x436/0x520 [ 84.764082][ T4361] ret_from_fork+0x1f/0x30 [ 84.769053][ T4361] [ 84.769053][ T4361] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.778906][ T4361] __lock_acquire+0x2c42/0x7d10 [ 84.784324][ T4361] lock_acquire+0x19e/0x400 [ 84.789383][ T4361] __flush_work+0x116/0x210 [ 84.794439][ T4361] __cancel_work_timer+0x3f4/0x560 [ 84.800108][ T4361] hci_request_cancel_all+0xcc/0x300 [ 84.805959][ T4361] hci_dev_do_close+0x4e/0x1030 [ 84.811359][ T4361] hci_rfkill_set_block+0x10a/0x190 [ 84.817112][ T4361] rfkill_set_block+0x1c9/0x3d0 [ 84.822516][ T4361] rfkill_fop_write+0x452/0x560 [ 84.827916][ T4361] vfs_write+0x30b/0xd60 [ 84.832707][ T4361] ksys_write+0x152/0x260 [ 84.837605][ T4361] do_syscall_64+0x4c/0xa0 [ 84.842585][ T4361] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.849155][ T4361] [ 84.849155][ T4361] other info that might help us debug this: [ 84.849155][ T4361] [ 84.859497][ T4361] Chain exists of: [ 84.859497][ T4361] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.859497][ T4361] [ 84.875267][ T4361] Possible unsafe locking scenario: [ 84.875267][ T4361] [ 84.882840][ T4361] CPU0 CPU1 [ 84.888227][ T4361] ---- ---- [ 84.893709][ T4361] lock(rfkill_global_mutex); [ 84.898512][ T4361] lock(&data->open_mutex); [ 84.905651][ T4361] lock(rfkill_global_mutex); [ 84.912972][ T4361] lock((work_completion)(&hdev->bg_scan_update)); [ 84.919585][ T4361] [ 84.919585][ T4361] *** DEADLOCK *** [ 84.919585][ T4361] [ 84.927775][ T4361] 1 lock held by syz.0.17/4361: [ 84.932650][ T4361] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.942942][ T4361] [ 84.942942][ T4361] stack backtrace: [ 84.948875][ T4361] CPU: 0 PID: 4361 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.956106][ T4361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 84.966199][ T4361] Call Trace: [ 84.969505][ T4361] [ 84.972458][ T4361] dump_stack_lvl+0x188/0x250 [ 84.977167][ T4361] ? load_image+0x400/0x400 [ 84.981705][ T4361] ? show_regs_print_info+0x20/0x20 [ 84.986957][ T4361] ? print_circular_bug+0x12b/0x1a0 [ 84.992189][ T4361] check_noncircular+0x296/0x330 [ 84.997158][ T4361] ? look_up_lock_class+0x71/0x110 [ 85.002307][ T4361] ? add_chain_block+0x940/0x940 [ 85.007271][ T4361] ? lockdep_lock+0xf1/0x1f0 [ 85.011887][ T4361] ? __lock_acquire+0x12e8/0x7d10 [ 85.016940][ T4361] ? mark_lock+0x94/0x320 [ 85.021306][ T4361] __lock_acquire+0x2c42/0x7d10 [ 85.026210][ T4361] ? verify_lock_unused+0x140/0x140 [ 85.031441][ T4361] ? verify_lock_unused+0x140/0x140 [ 85.036672][ T4361] ? mark_lock+0x94/0x320 [ 85.041034][ T4361] lock_acquire+0x19e/0x400 [ 85.045569][ T4361] ? __flush_work+0xfa/0x210 [ 85.050197][ T4361] ? __lock_acquire+0x7d10/0x7d10 [ 85.055262][ T4361] ? read_lock_is_recursive+0x10/0x10 [ 85.060672][ T4361] ? start_flush_work+0x776/0x820 [ 85.065735][ T4361] __flush_work+0x116/0x210 [ 85.070286][ T4361] ? __flush_work+0xfa/0x210 [ 85.075040][ T4361] ? flush_work+0x20/0x20 [ 85.079411][ T4361] ? try_to_grab_pending+0xfa/0x7f0 [ 85.084677][ T4361] ? mark_lock+0x94/0x320 [ 85.089058][ T4361] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.095084][ T4361] ? lock_chain_count+0x20/0x20 [ 85.099966][ T4361] ? mark_lock+0x94/0x320 [ 85.104424][ T4361] ? __cancel_work_timer+0x36a/0x560 [ 85.109742][ T4361] __cancel_work_timer+0x3f4/0x560 [ 85.114885][ T4361] ? cancel_work_sync+0x20/0x20 [ 85.119783][ T4361] ? __cancel_work+0x1f9/0x2e0 [ 85.124581][ T4361] ? lockdep_hardirqs_on+0x94/0x140 [ 85.129853][ T4361] ? __cancel_work+0x27b/0x2e0 [ 85.134649][ T4361] ? cancel_work+0x20/0x20 [ 85.139090][ T4361] ? lock_chain_count+0x20/0x20 [ 85.143984][ T4361] hci_request_cancel_all+0xcc/0x300 [ 85.149315][ T4361] hci_dev_do_close+0x4e/0x1030 [ 85.154204][ T4361] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 85.160131][ T4361] ? _raw_spin_unlock+0x40/0x40 [ 85.165023][ T4361] hci_rfkill_set_block+0x10a/0x190 [ 85.170271][ T4361] ? rcu_lock_release+0x20/0x20 [ 85.175155][ T4361] rfkill_set_block+0x1c9/0x3d0 [ 85.180043][ T4361] rfkill_fop_write+0x452/0x560 [ 85.184934][ T4361] ? rfkill_fop_read+0x520/0x520 [ 85.190004][ T4361] ? common_file_perm+0xc0/0x1c0 [ 85.195064][ T4361] ? fsnotify_perm+0x5d/0x560 [ 85.199792][ T4361] ? security_file_permission+0x75/0xa0 [ 85.205370][ T4361] ? rfkill_fop_read+0x520/0x520 [ 85.210434][ T4361] vfs_write+0x30b/0xd60 [ 85.214720][ T4361] ? file_end_write+0x250/0x250 [ 85.219601][ T4361] ? __context_tracking_exit+0x4c/0x80 [ 85.225098][ T4361] ? __lock_acquire+0x7d10/0x7d10 [ 85.230162][ T4361] ? __fdget_pos+0x1e2/0x370 [ 85.234792][ T4361] ksys_write+0x152/0x260 [ 85.239163][ T4361] ? __ia32_sys_read+0x80/0x80 [ 85.243962][ T4361] ? lockdep_hardirqs_on+0x94/0x140 [ 85.249201][ T4361] do_syscall_64+0x4c/0xa0 [ 85.253656][ T4361] ? clear_bhb_loop+0x30/0x80 [ 85.258369][ T4361] ? clear_bhb_loop+0x30/0x80 [ 85.263079][ T4361] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.269026][ T4361] RIP: 0033:0x7f5a25023e59 [ 85.273479][ T4361] 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 [ 85.293119][ T4361] RSP: 002b:00007ffe58123118 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.301615][ T4361] RAX: ffffffffffffffda RBX: 00007f5a2529cfa0 RCX: 00007f5a25023e59 [ 85.309629][ T4361] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 85.317639][ T4361] RBP: 00007f5a250b9d6f R08: 0000000000000000 R09: 0000000000000000 [ 85.325649][ T4361] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.333664][ T4361] R13: 00007f5a2529cfac R14: 00007f5a2529cfa0 R15: 00007f5a2529cfa0 [ 85.341680][ T4361] [ 86.822594][ T1108] cfg80211: failed to load regulatory.db 2026/05/24 17:15:37 executed programs: 212 2026/05/24 17:15:42 executed programs: 510