Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. 2026/04/13 03:08:28 parsed 1 programs [ 70.813033][ T4187] cgroup: Unknown subsys name 'net' [ 70.921311][ T4187] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.438825][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.445429][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.428905][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.966783][ T4226] chnl_net:caif_netlink_parms(): no params data found [ 75.039408][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.047561][ T4226] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.057570][ T4226] device bridge_slave_0 entered promiscuous mode [ 75.067827][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.076267][ T4226] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.084968][ T4226] device bridge_slave_1 entered promiscuous mode [ 75.115906][ T4226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.128392][ T4226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.158598][ T4226] team0: Port device team_slave_0 added [ 75.166713][ T4226] team0: Port device team_slave_1 added [ 75.190450][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.197612][ T4226] 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. [ 75.224035][ T4226] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.237723][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.245078][ T4226] 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. [ 75.271424][ T4226] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.313321][ T4226] device hsr_slave_0 entered promiscuous mode [ 75.320440][ T4226] device hsr_slave_1 entered promiscuous mode [ 75.465317][ T4226] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.478094][ T4226] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.489129][ T4226] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.500471][ T4226] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.534678][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.542273][ T4226] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.550467][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.557627][ T4226] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.621878][ T4226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.638830][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.651425][ T306] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.661422][ T306] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.676899][ T4226] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.697537][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.706510][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.713616][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.723442][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.736029][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.743144][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.765575][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.775334][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.789439][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.805284][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.820420][ T4226] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.833327][ T4226] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.843011][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.972864][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.980557][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.997772][ T4226] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.021910][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.032103][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.057354][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.067148][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.086259][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.095366][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.104704][ T4226] device veth0_vlan entered promiscuous mode [ 76.120397][ T4226] device veth1_vlan entered promiscuous mode [ 76.143724][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.152605][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.162062][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.171217][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.182089][ T4226] device veth0_macvtap entered promiscuous mode [ 76.193819][ T4226] device veth1_macvtap entered promiscuous mode [ 76.221575][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.233798][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.266209][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.278803][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.289562][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.306338][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.316162][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.336578][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.350462][ T4226] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.359807][ T4226] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.368888][ T4226] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.378014][ T4226] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.666518][ T4233] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.685968][ T4233] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.697170][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.723899][ T306] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.733685][ T306] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.742437][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/13 03:08:38 executed programs: 0 [ 78.653535][ T4281] chnl_net:caif_netlink_parms(): no params data found [ 78.716097][ T4281] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.723284][ T4281] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.731809][ T4281] device bridge_slave_0 entered promiscuous mode [ 78.741502][ T4281] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.748832][ T4281] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.757005][ T4281] device bridge_slave_1 entered promiscuous mode [ 78.790089][ T4281] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.802187][ T4281] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.831489][ T4281] team0: Port device team_slave_0 added [ 78.840722][ T4281] team0: Port device team_slave_1 added [ 78.862790][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.870295][ T4281] 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. [ 78.897083][ T4281] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.910001][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.917077][ T4281] 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. [ 78.943291][ T4281] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.981458][ T4281] device hsr_slave_0 entered promiscuous mode [ 78.988807][ T4281] device hsr_slave_1 entered promiscuous mode [ 78.996038][ T4281] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.004082][ T4281] Cannot create hsr debugfs directory [ 79.101415][ T4281] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.556153][ T4232] Bluetooth: hci0: command 0x0409 tx timeout [ 81.781275][ T4281] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.841049][ T4281] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.892204][ T4281] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.028122][ T4281] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.038674][ T4281] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.047947][ T4281] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.059517][ T4281] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.133046][ T4281] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.152403][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.160838][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.175905][ T4281] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.186423][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.196260][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.204902][ T4233] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.211998][ T4233] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.220825][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.249354][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.258409][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.267362][ T306] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.274548][ T306] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.288338][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.301974][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.344839][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.355593][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.365183][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 82.373851][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.382567][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.392170][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.402451][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.415069][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.423608][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.434961][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.577009][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.586411][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.619396][ T4281] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.634529][ T4300] Bluetooth: hci0: command 0x041b tx timeout [ 82.645535][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.655182][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.673071][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.681676][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.693118][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.701479][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.710893][ T4281] device veth0_vlan entered promiscuous mode [ 82.742965][ T4281] device veth1_vlan entered promiscuous mode [ 82.764070][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.772697][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.781368][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.790562][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.801982][ T4281] device veth0_macvtap entered promiscuous mode [ 82.812391][ T4281] device veth1_macvtap entered promiscuous mode [ 82.837666][ T4281] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 82.850429][ T4281] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 82.862719][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.882195][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.890738][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.899619][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.909145][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.920386][ T4281] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 82.931378][ T4281] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 82.942612][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.961689][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.970949][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.982096][ T4281] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.991112][ T4281] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.000141][ T4281] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.009327][ T4281] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.025028][ T9] device hsr_slave_0 left promiscuous mode [ 83.031513][ T9] device hsr_slave_1 left promiscuous mode [ 83.039142][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.046839][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.057311][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.064923][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.072636][ T9] device bridge_slave_1 left promiscuous mode [ 83.080741][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.095297][ T9] device bridge_slave_0 left promiscuous mode [ 83.101777][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.120364][ T9] device veth1_macvtap left promiscuous mode [ 83.126955][ T9] device veth0_macvtap left promiscuous mode [ 83.133033][ T9] device veth1_vlan left promiscuous mode [ 83.139777][ T9] device veth0_vlan left promiscuous mode [ 83.321857][ T9] team0 (unregistering): Port device team_slave_1 removed [ 83.337993][ T9] team0 (unregistering): Port device team_slave_0 removed [ 83.351494][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.370328][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.429347][ T9] bond0 (unregistering): Released all slaves [ 83.558558][ T4307] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.568127][ T4307] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.579545][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.600552][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 2026/04/13 03:08:43 executed programs: 2 [ 83.609540][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.626999][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.752499][ T4308] [ 83.754888][ T4308] ====================================================== [ 83.761937][ T4308] WARNING: possible circular locking dependency detected [ 83.768991][ T4308] syzkaller #0 Not tainted [ 83.773424][ T4308] ------------------------------------------------------ [ 83.780560][ T4308] syz.0.17/4308 is trying to acquire lock: [ 83.786403][ T4308] ffff888075cf0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 83.797515][ T4308] [ 83.797515][ T4308] but task is already holding lock: [ 83.804991][ T4308] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.814699][ T4308] [ 83.814699][ T4308] which lock already depends on the new lock. [ 83.814699][ T4308] [ 83.825131][ T4308] [ 83.825131][ T4308] the existing dependency chain (in reverse order) is: [ 83.834174][ T4308] [ 83.834174][ T4308] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.842220][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 83.847980][ T4308] mutex_lock_nested+0x17/0x20 [ 83.853296][ T4308] rfkill_register+0x33/0x8a0 [ 83.858536][ T4308] hci_register_dev+0x452/0x970 [ 83.863942][ T4308] vhci_create_device+0x32c/0x5c0 [ 83.869539][ T4308] vhci_write+0x391/0x450 [ 83.874425][ T4308] vfs_write+0x745/0xd60 [ 83.879234][ T4308] ksys_write+0x152/0x260 [ 83.884115][ T4308] do_syscall_64+0x4c/0xa0 [ 83.889082][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.895611][ T4308] [ 83.895611][ T4308] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.903460][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 83.909224][ T4308] mutex_lock_nested+0x17/0x20 [ 83.914549][ T4308] vhci_send_frame+0x88/0x100 [ 83.919781][ T4308] hci_send_frame+0x1a9/0x2e0 [ 83.925017][ T4308] hci_tx_work+0x9f9/0x1710 [ 83.930077][ T4308] process_one_work+0x85f/0x1010 [ 83.935567][ T4308] worker_thread+0xaa6/0x1290 [ 83.940795][ T4308] kthread+0x436/0x520 [ 83.945419][ T4308] ret_from_fork+0x1f/0x30 [ 83.950390][ T4308] [ 83.950390][ T4308] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.959625][ T4308] __flush_work+0x116/0x210 [ 83.964693][ T4308] hci_dev_do_close+0x1e7/0x1030 [ 83.970206][ T4308] hci_unregister_dev+0x2d7/0x580 [ 83.975792][ T4308] vhci_release+0x73/0xc0 [ 83.980680][ T4308] __fput+0x234/0x930 [ 83.985220][ T4308] task_work_run+0x125/0x1a0 [ 83.990367][ T4308] do_exit+0x626/0x20c0 [ 83.995079][ T4308] do_group_exit+0x12e/0x300 [ 84.000321][ T4308] get_signal+0x6ca/0x12c0 [ 84.005393][ T4308] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.011583][ T4308] exit_to_user_mode_loop+0x9e/0x130 [ 84.017425][ T4308] exit_to_user_mode_prepare+0xee/0x180 [ 84.023522][ T4308] syscall_exit_to_user_mode+0x16/0x40 [ 84.029537][ T4308] do_syscall_64+0x58/0xa0 [ 84.034542][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.040997][ T4308] [ 84.040997][ T4308] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.048677][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 84.054439][ T4308] mutex_lock_nested+0x17/0x20 [ 84.059762][ T4308] bg_scan_update+0x44/0x3b0 [ 84.064927][ T4308] process_one_work+0x85f/0x1010 [ 84.070424][ T4308] worker_thread+0xaa6/0x1290 [ 84.075703][ T4308] kthread+0x436/0x520 [ 84.080323][ T4308] ret_from_fork+0x1f/0x30 [ 84.085291][ T4308] [ 84.085291][ T4308] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.095140][ T4308] __lock_acquire+0x2c42/0x7d10 [ 84.100566][ T4308] lock_acquire+0x19e/0x400 [ 84.105736][ T4308] __flush_work+0x116/0x210 [ 84.110795][ T4308] __cancel_work_timer+0x3f4/0x560 [ 84.116466][ T4308] hci_request_cancel_all+0xcc/0x300 [ 84.122312][ T4308] hci_dev_do_close+0x4e/0x1030 [ 84.127715][ T4308] hci_rfkill_set_block+0x10a/0x190 [ 84.133466][ T4308] rfkill_set_block+0x1c6/0x420 [ 84.139016][ T4308] rfkill_fop_write+0x452/0x560 [ 84.144426][ T4308] vfs_write+0x30b/0xd60 [ 84.149223][ T4308] ksys_write+0x152/0x260 [ 84.154132][ T4308] do_syscall_64+0x4c/0xa0 [ 84.159163][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.165623][ T4308] [ 84.165623][ T4308] other info that might help us debug this: [ 84.165623][ T4308] [ 84.176111][ T4308] Chain exists of: [ 84.176111][ T4308] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.176111][ T4308] [ 84.191889][ T4308] Possible unsafe locking scenario: [ 84.191889][ T4308] [ 84.199376][ T4308] CPU0 CPU1 [ 84.204767][ T4308] ---- ---- [ 84.210161][ T4308] lock(rfkill_global_mutex); [ 84.214970][ T4308] lock(&data->open_mutex); [ 84.222108][ T4308] lock(rfkill_global_mutex); [ 84.229428][ T4308] lock((work_completion)(&hdev->bg_scan_update)); [ 84.236047][ T4308] [ 84.236047][ T4308] *** DEADLOCK *** [ 84.236047][ T4308] [ 84.244221][ T4308] 1 lock held by syz.0.17/4308: [ 84.249096][ T4308] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.259375][ T4308] [ 84.259375][ T4308] stack backtrace: [ 84.265309][ T4308] CPU: 0 PID: 4308 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.272536][ T4308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.282639][ T4308] Call Trace: [ 84.285956][ T4308] [ 84.288924][ T4308] dump_stack_lvl+0x188/0x250 [ 84.293642][ T4308] ? load_image+0x400/0x400 [ 84.298189][ T4308] ? show_regs_print_info+0x20/0x20 [ 84.303438][ T4308] ? print_circular_bug+0x12b/0x1a0 [ 84.308688][ T4308] check_noncircular+0x296/0x330 [ 84.313676][ T4308] ? look_up_lock_class+0x71/0x110 [ 84.318837][ T4308] ? add_chain_block+0x940/0x940 [ 84.323849][ T4308] ? lockdep_lock+0xf1/0x1f0 [ 84.328490][ T4308] ? __lock_acquire+0x12e8/0x7d10 [ 84.333563][ T4308] ? mark_lock+0x94/0x320 [ 84.337925][ T4308] ? _find_first_zero_bit+0xce/0xf0 [ 84.343261][ T4308] __lock_acquire+0x2c42/0x7d10 [ 84.348169][ T4308] ? verify_lock_unused+0x140/0x140 [ 84.353496][ T4308] ? verify_lock_unused+0x140/0x140 [ 84.358734][ T4308] ? mark_lock+0x94/0x320 [ 84.363109][ T4308] lock_acquire+0x19e/0x400 [ 84.367655][ T4308] ? __flush_work+0xfa/0x210 [ 84.372283][ T4308] ? __lock_acquire+0x7d10/0x7d10 [ 84.377345][ T4308] ? read_lock_is_recursive+0x10/0x10 [ 84.382757][ T4308] ? start_flush_work+0x776/0x820 [ 84.387822][ T4308] __flush_work+0x116/0x210 [ 84.392405][ T4308] ? __flush_work+0xfa/0x210 [ 84.397036][ T4308] ? flush_work+0x20/0x20 [ 84.401407][ T4308] ? try_to_grab_pending+0xfa/0x7f0 [ 84.406761][ T4308] ? mark_lock+0x94/0x320 [ 84.411130][ T4308] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 84.417172][ T4308] ? lock_chain_count+0x20/0x20 [ 84.422063][ T4308] ? mark_lock+0x94/0x320 [ 84.426431][ T4308] ? __cancel_work_timer+0x36a/0x560 [ 84.431751][ T4308] __cancel_work_timer+0x3f4/0x560 [ 84.436899][ T4308] ? cancel_work_sync+0x20/0x20 [ 84.441785][ T4308] ? __cancel_work+0x1f9/0x2e0 [ 84.446585][ T4308] ? lockdep_hardirqs_on+0x94/0x140 [ 84.451818][ T4308] ? __cancel_work+0x27b/0x2e0 [ 84.456627][ T4308] ? cancel_work+0x20/0x20 [ 84.461084][ T4308] ? lock_chain_count+0x20/0x20 [ 84.465977][ T4308] hci_request_cancel_all+0xcc/0x300 [ 84.471300][ T4308] hci_dev_do_close+0x4e/0x1030 [ 84.476197][ T4308] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 84.482126][ T4308] ? _raw_spin_unlock+0x40/0x40 [ 84.487015][ T4308] hci_rfkill_set_block+0x10a/0x190 [ 84.492250][ T4308] ? rcu_lock_release+0x20/0x20 [ 84.497142][ T4308] rfkill_set_block+0x1c6/0x420 [ 84.502039][ T4308] rfkill_fop_write+0x452/0x560 [ 84.506941][ T4308] ? rfkill_fop_read+0x4d0/0x4d0 [ 84.511913][ T4308] ? common_file_perm+0x110/0x1c0 [ 84.516982][ T4308] ? fsnotify_perm+0x5d/0x560 [ 84.521695][ T4308] ? security_file_permission+0x75/0xa0 [ 84.527285][ T4308] ? rfkill_fop_read+0x4d0/0x4d0 [ 84.532258][ T4308] vfs_write+0x30b/0xd60 [ 84.536541][ T4308] ? file_end_write+0x250/0x250 [ 84.541433][ T4308] ? __context_tracking_exit+0x4c/0x80 [ 84.546932][ T4308] ? __lock_acquire+0x7d10/0x7d10 [ 84.551998][ T4308] ? __fdget_pos+0x1e2/0x370 [ 84.556626][ T4308] ksys_write+0x152/0x260 [ 84.560992][ T4308] ? __ia32_sys_read+0x80/0x80 [ 84.565879][ T4308] ? lockdep_hardirqs_on+0x94/0x140 [ 84.571129][ T4308] do_syscall_64+0x4c/0xa0 [ 84.575594][ T4308] ? clear_bhb_loop+0x30/0x80 [ 84.580306][ T4308] ? clear_bhb_loop+0x30/0x80 [ 84.585016][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.591471][ T4308] RIP: 0033:0x7fa2524e1819 [ 84.595921][ T4308] 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 [ 84.615696][ T4308] RSP: 002b:00007ffee6714e28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.624153][ T4308] RAX: ffffffffffffffda RBX: 00007fa25275afa0 RCX: 00007fa2524e1819 [ 84.632162][ T4308] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 84.640178][ T4308] RBP: 00007fa252577c91 R08: 0000000000000000 R09: 0000000000000000 [ 84.648194][ T4308] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.656199][ T4308] R13: 00007fa25275afac R14: 00007fa25275afa0 R15: 00007fa25275afa0 [ 84.664214][ T4308] [ 86.799446][ T13] cfg80211: failed to load regulatory.db 2026/04/13 03:08:48 executed programs: 208 2026/04/13 03:08:53 executed programs: 508