Warning: Permanently added '10.128.1.40' (ED25519) to the list of known hosts. 2026/07/11 15:37:09 parsed 1 programs 2026/07/11 15:37:09 serving rpc on tcp://40641 [ 55.155488][ T4199] cgroup: Unknown subsys name 'net' [ 55.302095][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 56.575547][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.913862][ T4208] chnl_net:caif_netlink_parms(): no params data found [ 57.953582][ T4208] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.961214][ T4208] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.969302][ T4208] device bridge_slave_0 entered promiscuous mode [ 57.978166][ T4208] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.985465][ T4208] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.993631][ T4208] device bridge_slave_1 entered promiscuous mode [ 58.012282][ T4208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.023269][ T4208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.044465][ T4208] team0: Port device team_slave_0 added [ 58.051997][ T4208] team0: Port device team_slave_1 added [ 58.067963][ T4208] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.075030][ T4208] 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. [ 58.101102][ T4208] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.113754][ T4208] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.120772][ T4208] 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. [ 58.146876][ T4208] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.174544][ T4208] device hsr_slave_0 entered promiscuous mode [ 58.181312][ T4208] device hsr_slave_1 entered promiscuous mode [ 58.259207][ T4208] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.269323][ T4208] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.279190][ T4208] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.287968][ T4208] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.309738][ T4208] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.316907][ T4208] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.324643][ T4208] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.331768][ T4208] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.371103][ T4208] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.382835][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.393380][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.401936][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.409818][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.424022][ T4208] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.435946][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.444690][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.451794][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.462861][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.471784][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.478894][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.495384][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.504909][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.518295][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.531506][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.540539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.551118][ T4208] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.619317][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.626954][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.639382][ T4208] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.654523][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.672966][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.681675][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.689886][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.700380][ T4208] device veth0_vlan entered promiscuous mode [ 58.711261][ T4208] device veth1_vlan entered promiscuous mode [ 58.728950][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.737244][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.745549][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.756020][ T4208] device veth0_macvtap entered promiscuous mode [ 58.764453][ T4208] device veth1_macvtap entered promiscuous mode [ 58.779584][ T4208] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.787207][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.797719][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.808469][ T4208] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.816939][ T3083] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.827861][ T4208] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.837495][ T4208] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.846790][ T4208] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.856323][ T4208] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.988452][ T3083] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.891553][ T3083] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.049554][ T3083] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.100935][ T3083] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.883870][ T3083] device hsr_slave_0 left promiscuous mode [ 64.902816][ T3083] device hsr_slave_1 left promiscuous mode [ 64.921477][ T3083] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 64.936929][ T3083] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 64.958197][ T3083] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 64.976220][ T3083] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 64.996927][ T3083] device bridge_slave_1 left promiscuous mode [ 65.004232][ T3083] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.041112][ T3083] device bridge_slave_0 left promiscuous mode [ 65.056421][ T3083] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.078422][ T3083] device veth1_macvtap left promiscuous mode [ 65.084756][ T3083] device veth0_macvtap left promiscuous mode [ 65.091623][ T3083] device veth1_vlan left promiscuous mode [ 65.098774][ T3083] device veth0_vlan left promiscuous mode [ 65.226011][ T3083] team0 (unregistering): Port device team_slave_1 removed [ 65.241520][ T3083] team0 (unregistering): Port device team_slave_0 removed [ 65.253049][ T3083] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 65.269985][ T3083] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 65.314908][ T3083] bond0 (unregistering): Released all slaves [ 66.863579][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.875307][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.898314][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.932818][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.945945][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.953551][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/11 15:37:23 executed programs: 0 [ 68.069978][ T4412] chnl_net:caif_netlink_parms(): no params data found [ 68.126360][ T4412] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.133519][ T4412] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.141855][ T4412] device bridge_slave_0 entered promiscuous mode [ 68.149847][ T4412] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.157166][ T4412] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.164762][ T4412] device bridge_slave_1 entered promiscuous mode [ 68.186224][ T4412] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.197372][ T4412] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.223105][ T4412] team0: Port device team_slave_0 added [ 68.231155][ T4412] team0: Port device team_slave_1 added [ 68.248716][ T4412] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.255740][ T4412] 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. [ 68.282028][ T4412] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.295639][ T4412] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.302593][ T4412] 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. [ 68.328618][ T4412] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.361205][ T4412] device hsr_slave_0 entered promiscuous mode [ 68.368338][ T4412] device hsr_slave_1 entered promiscuous mode [ 68.882562][ T4412] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.893758][ T4412] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.905716][ T4412] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.919545][ T4412] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.981563][ T4412] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.988697][ T4412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.996420][ T4412] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.003509][ T4412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.096080][ T4412] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.103209][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.112935][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.123766][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.144041][ T4412] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.153130][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.162683][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.207789][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.219693][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.228610][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.235761][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.247947][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.257054][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.267869][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.274959][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.316121][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.327245][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.348005][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.358030][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.367979][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.377300][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.386611][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.396552][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.404949][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.419239][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.429130][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.439947][ T4412] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.658346][ T4412] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.667822][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.678087][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.703449][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.712812][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.739848][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.750465][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.761239][ T4412] device veth0_vlan entered promiscuous mode [ 69.770022][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.778068][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.791974][ T4412] device veth1_vlan entered promiscuous mode [ 69.824160][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.847739][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.856574][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.868138][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.880513][ T4412] device veth0_macvtap entered promiscuous mode [ 69.891850][ T4412] device veth1_macvtap entered promiscuous mode [ 69.910379][ T4412] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.918865][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.928922][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.940750][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.956619][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.973674][ T4412] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.983432][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.992092][ T4390] Bluetooth: hci0: command 0x0409 tx timeout [ 69.992841][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.010345][ T4412] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.026616][ T4412] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.046432][ T4412] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.062568][ T4412] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.155045][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.171667][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.227815][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.244779][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.265284][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.272845][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.405574][ T4504] [ 70.407948][ T4504] ====================================================== [ 70.415396][ T4504] WARNING: possible circular locking dependency detected [ 70.422526][ T4504] syzkaller #0 Not tainted [ 70.426948][ T4504] ------------------------------------------------------ [ 70.433958][ T4504] syz.0.17/4504 is trying to acquire lock: [ 70.439760][ T4504] ffff888077469028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 70.450824][ T4504] [ 70.450824][ T4504] but task is already holding lock: [ 70.458183][ T4504] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 70.467849][ T4504] [ 70.467849][ T4504] which lock already depends on the new lock. [ 70.467849][ T4504] [ 70.478249][ T4504] [ 70.478249][ T4504] the existing dependency chain (in reverse order) is: [ 70.487260][ T4504] [ 70.487260][ T4504] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 70.495253][ T4504] __mutex_lock_common+0x1e5/0x2400 [ 70.500978][ T4504] mutex_lock_nested+0x17/0x20 [ 70.506264][ T4504] rfkill_register+0x2f/0x970 [ 70.511454][ T4504] hci_register_dev+0x459/0x980 [ 70.516822][ T4504] vhci_create_device+0x32e/0x5c0 [ 70.522368][ T4504] vhci_write+0x389/0x440 [ 70.527215][ T4504] vfs_write+0x748/0xd70 [ 70.531979][ T4504] ksys_write+0x153/0x260 [ 70.536816][ T4504] do_syscall_64+0x4c/0xa0 [ 70.541740][ T4504] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.548134][ T4504] [ 70.548134][ T4504] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 70.555931][ T4504] __mutex_lock_common+0x1e5/0x2400 [ 70.561637][ T4504] mutex_lock_nested+0x17/0x20 [ 70.566904][ T4504] vhci_send_frame+0x88/0x100 [ 70.572087][ T4504] hci_send_frame+0x1a9/0x2e0 [ 70.577265][ T4504] hci_tx_work+0x9b5/0x16d0 [ 70.582287][ T4504] process_one_work+0x867/0xff0 [ 70.587647][ T4504] worker_thread+0xad7/0x12a0 [ 70.592825][ T4504] kthread+0x42e/0x520 [ 70.597395][ T4504] ret_from_fork+0x1f/0x30 [ 70.602314][ T4504] [ 70.602314][ T4504] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 70.611497][ T4504] __flush_work+0x116/0x210 [ 70.616502][ T4504] hci_dev_do_close+0x201/0x1020 [ 70.621943][ T4504] hci_unregister_dev+0x2eb/0x590 [ 70.627470][ T4504] vhci_release+0x73/0xc0 [ 70.632301][ T4504] __fput+0x212/0x8c0 [ 70.636783][ T4504] task_work_run+0x125/0x1a0 [ 70.641881][ T4504] do_exit+0x635/0x2110 [ 70.646542][ T4504] do_group_exit+0x12c/0x2f0 [ 70.651633][ T4504] get_signal+0x7eb/0x12e0 [ 70.656551][ T4504] arch_do_signal_or_restart+0xe6/0x12a0 [ 70.662694][ T4504] exit_to_user_mode_loop+0x9e/0x130 [ 70.668481][ T4504] exit_to_user_mode_prepare+0xee/0x180 [ 70.674528][ T4504] syscall_exit_to_user_mode+0x16/0x40 [ 70.680496][ T4504] do_syscall_64+0x58/0xa0 [ 70.685415][ T4504] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.691825][ T4504] [ 70.691825][ T4504] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 70.699448][ T4504] __mutex_lock_common+0x1e5/0x2400 [ 70.705165][ T4504] mutex_lock_nested+0x17/0x20 [ 70.710432][ T4504] bg_scan_update+0x44/0x3b0 [ 70.715528][ T4504] process_one_work+0x867/0xff0 [ 70.720884][ T4504] worker_thread+0xad7/0x12a0 [ 70.726066][ T4504] kthread+0x42e/0x520 [ 70.730636][ T4504] ret_from_fork+0x1f/0x30 [ 70.735555][ T4504] [ 70.735555][ T4504] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 70.745353][ T4504] __lock_acquire+0x2c66/0x7b50 [ 70.750735][ T4504] lock_acquire+0x19e/0x400 [ 70.755759][ T4504] __flush_work+0x116/0x210 [ 70.760768][ T4504] __cancel_work_timer+0x3f4/0x560 [ 70.766421][ T4504] hci_request_cancel_all+0xcc/0x300 [ 70.772210][ T4504] hci_dev_do_close+0x4e/0x1020 [ 70.777565][ T4504] hci_rfkill_set_block+0x101/0x180 [ 70.783265][ T4504] rfkill_set_block+0x1c1/0x3c0 [ 70.788617][ T4504] rfkill_fop_write+0x453/0x560 [ 70.793967][ T4504] vfs_write+0x304/0xd70 [ 70.798710][ T4504] ksys_write+0x153/0x260 [ 70.803543][ T4504] do_syscall_64+0x4c/0xa0 [ 70.808460][ T4504] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.814853][ T4504] [ 70.814853][ T4504] other info that might help us debug this: [ 70.814853][ T4504] [ 70.825063][ T4504] Chain exists of: [ 70.825063][ T4504] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 70.825063][ T4504] [ 70.840774][ T4504] Possible unsafe locking scenario: [ 70.840774][ T4504] [ 70.848218][ T4504] CPU0 CPU1 [ 70.853565][ T4504] ---- ---- [ 70.858906][ T4504] lock(rfkill_global_mutex); [ 70.863652][ T4504] lock(&data->open_mutex); [ 70.870739][ T4504] lock(rfkill_global_mutex); [ 70.877998][ T4504] lock((work_completion)(&hdev->bg_scan_update)); [ 70.884566][ T4504] [ 70.884566][ T4504] *** DEADLOCK *** [ 70.884566][ T4504] [ 70.893420][ T4504] 1 lock held by syz.0.17/4504: [ 70.898381][ T4504] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 70.908662][ T4504] [ 70.908662][ T4504] stack backtrace: [ 70.914641][ T4504] CPU: 0 PID: 4504 Comm: syz.0.17 Not tainted syzkaller #0 [ 70.921818][ T4504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 70.931955][ T4504] Call Trace: [ 70.935222][ T4504] [ 70.938136][ T4504] dump_stack_lvl+0x188/0x250 [ 70.942799][ T4504] ? load_image+0x410/0x410 [ 70.947282][ T4504] ? show_regs_print_info+0x20/0x20 [ 70.952465][ T4504] ? print_circular_bug+0x12b/0x1a0 [ 70.957662][ T4504] check_noncircular+0x296/0x330 [ 70.962578][ T4504] ? look_up_lock_class+0x71/0x110 [ 70.967669][ T4504] ? add_chain_block+0x9b0/0x9b0 [ 70.972589][ T4504] ? lockdep_lock+0xf1/0x1f0 [ 70.977162][ T4504] ? __lock_acquire+0x1305/0x7b50 [ 70.982261][ T4504] ? mark_lock+0x94/0x320 [ 70.986569][ T4504] ? _find_first_zero_bit+0xd1/0xf0 [ 70.992768][ T4504] __lock_acquire+0x2c66/0x7b50 [ 70.997625][ T4504] ? verify_lock_unused+0x140/0x140 [ 71.002827][ T4504] ? verify_lock_unused+0x140/0x140 [ 71.008035][ T4504] lock_acquire+0x19e/0x400 [ 71.012527][ T4504] ? __flush_work+0xfa/0x210 [ 71.017096][ T4504] ? __lock_acquire+0x7b50/0x7b50 [ 71.022102][ T4504] ? read_lock_is_recursive+0x10/0x10 [ 71.027459][ T4504] ? start_flush_work+0x784/0x830 [ 71.032468][ T4504] __flush_work+0x116/0x210 [ 71.037077][ T4504] ? __flush_work+0xfa/0x210 [ 71.041774][ T4504] ? flush_work+0x20/0x20 [ 71.046102][ T4504] ? try_to_grab_pending+0xfb/0x820 [ 71.051284][ T4504] ? mark_lock+0x94/0x320 [ 71.055596][ T4504] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 71.061580][ T4504] ? lock_chain_count+0x20/0x20 [ 71.066415][ T4504] ? mark_lock+0x94/0x320 [ 71.070722][ T4504] ? __cancel_work_timer+0x36a/0x560 [ 71.075991][ T4504] __cancel_work_timer+0x3f4/0x560 [ 71.081090][ T4504] ? cancel_work_sync+0x20/0x20 [ 71.085922][ T4504] ? __cancel_work+0x1f9/0x2e0 [ 71.090665][ T4504] ? lockdep_hardirqs_on+0x94/0x140 [ 71.095859][ T4504] ? __cancel_work+0x27b/0x2e0 [ 71.100613][ T4504] ? cancel_work+0x20/0x20 [ 71.105011][ T4504] hci_request_cancel_all+0xcc/0x300 [ 71.110277][ T4504] hci_dev_do_close+0x4e/0x1020 [ 71.115106][ T4504] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 71.120983][ T4504] ? _raw_spin_unlock+0x40/0x40 [ 71.125860][ T4504] hci_rfkill_set_block+0x101/0x180 [ 71.131132][ T4504] ? rcu_lock_release+0x20/0x20 [ 71.136061][ T4504] rfkill_set_block+0x1c1/0x3c0 [ 71.140896][ T4504] rfkill_fop_write+0x453/0x560 [ 71.146185][ T4504] ? rfkill_fop_read+0x560/0x560 [ 71.151365][ T4504] ? common_file_perm+0xf0/0x1c0 [ 71.156369][ T4504] ? fsnotify_perm+0x5d/0x560 [ 71.161291][ T4504] ? security_file_permission+0x75/0xa0 [ 71.166824][ T4504] ? rfkill_fop_read+0x560/0x560 [ 71.171745][ T4504] vfs_write+0x304/0xd70 [ 71.175974][ T4504] ? file_end_write+0x250/0x250 [ 71.181005][ T4504] ? __context_tracking_exit+0x4c/0x80 [ 71.186448][ T4504] ? __fdget_pos+0x1e2/0x370 [ 71.191020][ T4504] ksys_write+0x153/0x260 [ 71.195333][ T4504] ? __ia32_sys_read+0x80/0x80 [ 71.200081][ T4504] ? lockdep_hardirqs_on+0x94/0x140 [ 71.205288][ T4504] do_syscall_64+0x4c/0xa0 [ 71.209686][ T4504] ? clear_bhb_loop+0x30/0x80 [ 71.214341][ T4504] ? clear_bhb_loop+0x30/0x80 [ 71.219083][ T4504] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.224968][ T4504] RIP: 0033:0x7f599832ce59 [ 71.229395][ T4504] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 71.248994][ T4504] RSP: 002b:00007fff4a1e0bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.257969][ T4504] RAX: ffffffffffffffda RBX: 00007f59985b4fa0 RCX: 00007f599832ce59 [ 71.265952][ T4504] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 71.273920][ T4504] RBP: 00007f59983c2e6f R08: 0000000000000000 R09: 0000000000000000 [ 71.281973][ T4504] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 71.289930][ T4504] R13: 00007f59985b4fac R14: 00007f59985b4fa0 R15: 00007f59985b4fa0 [ 71.297893][ T4504] [ 71.337453][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.343769][ T1421] ieee802154 phy1 wpan1: encryption failed: -22