Warning: Permanently added '10.128.1.175' (ED25519) to the list of known hosts. 2026/04/07 07:30:28 parsed 1 programs [ 58.625554][ T4189] cgroup: Unknown subsys name 'net' [ 58.762628][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 60.257964][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 61.779951][ T4202] chnl_net:caif_netlink_parms(): no params data found [ 61.824163][ T4202] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.831680][ T4202] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.839740][ T4202] device bridge_slave_0 entered promiscuous mode [ 61.849024][ T4202] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.856111][ T4202] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.864225][ T4202] device bridge_slave_1 entered promiscuous mode [ 61.887619][ T4202] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.899063][ T4202] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.919779][ T4202] team0: Port device team_slave_0 added [ 61.926707][ T4202] team0: Port device team_slave_1 added [ 61.945299][ T4202] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.952345][ T4202] 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. [ 61.978497][ T4202] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.991685][ T4202] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.998946][ T4202] 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. [ 62.024950][ T4202] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.055116][ T4202] device hsr_slave_0 entered promiscuous mode [ 62.061875][ T4202] device hsr_slave_1 entered promiscuous mode [ 62.151340][ T4202] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.161794][ T4202] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.171675][ T4202] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.181234][ T4202] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.204820][ T4202] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.212003][ T4202] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.219919][ T4202] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.227059][ T4202] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.268821][ T4202] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.281155][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.291792][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.301420][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.309910][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 62.322635][ T4202] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.335871][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.344630][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.351763][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.362757][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.371492][ T377] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.378590][ T377] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.401155][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.420555][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.429431][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.438111][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.451279][ T4202] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.465118][ T4202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.474642][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.605065][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.614926][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.630783][ T4202] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.655406][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.681293][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.691607][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.701458][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.712706][ T4202] device veth0_vlan entered promiscuous mode [ 62.727358][ T4202] device veth1_vlan entered promiscuous mode [ 62.750909][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.760644][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.775347][ T4202] device veth0_macvtap entered promiscuous mode [ 62.784414][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.795016][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.805776][ T4202] device veth1_macvtap entered promiscuous mode [ 62.814722][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.823867][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.843176][ T4202] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.852966][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.872248][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.884485][ T4202] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.894024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.902952][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.916269][ T4202] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.926227][ T4202] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.936533][ T4202] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.946184][ T4202] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.070330][ T4202] syz-executor (4202) used greatest stack depth: 21008 bytes left [ 63.919479][ T3078] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.021172][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.029369][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.041701][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.058574][ T377] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.066437][ T377] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.075170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/07 07:30:37 executed programs: 0 [ 65.736422][ T4272] chnl_net:caif_netlink_parms(): no params data found [ 65.774762][ T4272] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.782065][ T4272] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.789974][ T4272] device bridge_slave_0 entered promiscuous mode [ 65.798361][ T4272] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.805790][ T4272] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.813851][ T4272] device bridge_slave_1 entered promiscuous mode [ 65.831888][ T4272] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.842888][ T4272] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.864674][ T4272] team0: Port device team_slave_0 added [ 65.872029][ T4272] team0: Port device team_slave_1 added [ 65.888558][ T4272] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.895532][ T4272] 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. [ 65.921880][ T4272] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.933812][ T4272] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.940993][ T4272] 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. [ 65.967146][ T4272] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.002115][ T4272] device hsr_slave_0 entered promiscuous mode [ 66.009391][ T4272] device hsr_slave_1 entered promiscuous mode [ 66.016307][ T4272] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.024407][ T4272] Cannot create hsr debugfs directory [ 66.663210][ T3078] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.747864][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 68.332719][ T3078] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.394270][ T3078] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.215354][ T4272] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.225466][ T4272] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.235615][ T4272] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.263099][ T4272] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.349636][ T4272] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.365701][ T3078] device hsr_slave_0 left promiscuous mode [ 69.373152][ T3078] device hsr_slave_1 left promiscuous mode [ 69.380492][ T3078] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.389622][ T3078] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.399586][ T3078] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.407112][ T3078] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.414989][ T3078] device bridge_slave_1 left promiscuous mode [ 69.422406][ T3078] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.435456][ T3078] device bridge_slave_0 left promiscuous mode [ 69.442117][ T3078] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.459234][ T3078] device veth1_macvtap left promiscuous mode [ 69.465488][ T3078] device veth0_macvtap left promiscuous mode [ 69.471696][ T3078] device veth1_vlan left promiscuous mode [ 69.477872][ T3078] device veth0_vlan left promiscuous mode [ 69.621831][ T3078] team0 (unregistering): Port device team_slave_1 removed [ 69.635438][ T3078] team0 (unregistering): Port device team_slave_0 removed [ 69.649390][ T3078] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.664261][ T3078] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.715754][ T3078] bond0 (unregistering): Released all slaves [ 69.778219][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.786059][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.797469][ T4272] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.806562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.815849][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.824602][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.831863][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.839863][ T1108] Bluetooth: hci0: command 0x041b tx timeout [ 69.851050][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.858981][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.868300][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.876597][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.883783][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.891612][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.900533][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.916560][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.931586][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.942627][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.955728][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.966094][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.977557][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.986437][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.999738][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.008922][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.025789][ T4272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.124337][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.132911][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.151950][ T4272] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.170796][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.179791][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.196419][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.204701][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.223120][ T4272] device veth0_vlan entered promiscuous mode [ 70.229863][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.238019][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.251528][ T4272] device veth1_vlan entered promiscuous mode [ 70.276512][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.287156][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.295997][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 70.309642][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.323289][ T4272] device veth0_macvtap entered promiscuous mode [ 70.334351][ T4272] device veth1_macvtap entered promiscuous mode [ 70.354027][ T4272] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.363869][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.373609][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.383285][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.392474][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.405848][ T4272] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.414598][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.425335][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.437438][ T4272] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.446169][ T4272] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.456355][ T4272] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.465861][ T4272] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.530361][ T377] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.545410][ T377] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.562894][ T4332] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.576930][ T4332] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.584848][ T4332] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.594208][ T377] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.774380][ T4337] [ 70.776798][ T4337] ====================================================== [ 70.783838][ T4337] WARNING: possible circular locking dependency detected [ 70.790873][ T4337] syzkaller #0 Not tainted [ 70.795305][ T4337] ------------------------------------------------------ [ 70.802346][ T4337] syz.0.17/4337 is trying to acquire lock: [ 70.808258][ T4337] ffff88805d374c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 70.819432][ T4337] [ 70.819432][ T4337] but task is already holding lock: [ 70.826857][ T4337] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 70.836559][ T4337] [ 70.836559][ T4337] which lock already depends on the new lock. [ 70.836559][ T4337] [ 70.847073][ T4337] [ 70.847073][ T4337] the existing dependency chain (in reverse order) is: [ 70.856104][ T4337] [ 70.856104][ T4337] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 70.864130][ T4337] __mutex_lock_common+0x1e3/0x2400 [ 70.869896][ T4337] mutex_lock_nested+0x17/0x20 [ 70.875212][ T4337] rfkill_register+0x33/0x8a0 [ 70.880448][ T4337] hci_register_dev+0x452/0x970 [ 70.885844][ T4337] vhci_create_device+0x32c/0x5c0 [ 70.891417][ T4337] vhci_write+0x391/0x450 [ 70.896301][ T4337] vfs_write+0x745/0xd60 [ 70.901080][ T4337] ksys_write+0x152/0x260 [ 70.905939][ T4337] do_syscall_64+0x4c/0xa0 [ 70.910892][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.917321][ T4337] [ 70.917321][ T4337] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 70.925168][ T4337] __mutex_lock_common+0x1e3/0x2400 [ 70.930997][ T4337] mutex_lock_nested+0x17/0x20 [ 70.936298][ T4337] vhci_send_frame+0x88/0x100 [ 70.941620][ T4337] hci_send_frame+0x1a9/0x2e0 [ 70.946842][ T4337] hci_tx_work+0x9f9/0x1710 [ 70.951881][ T4337] process_one_work+0x85f/0x1010 [ 70.957353][ T4337] worker_thread+0xaa6/0x1290 [ 70.962562][ T4337] kthread+0x436/0x520 [ 70.967159][ T4337] ret_from_fork+0x1f/0x30 [ 70.972114][ T4337] [ 70.972114][ T4337] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 70.981340][ T4337] __flush_work+0x116/0x210 [ 70.986377][ T4337] hci_dev_do_close+0x1e7/0x1030 [ 70.991850][ T4337] hci_unregister_dev+0x2d7/0x580 [ 70.997410][ T4337] vhci_release+0x73/0xc0 [ 71.002272][ T4337] __fput+0x234/0x930 [ 71.006787][ T4337] task_work_run+0x125/0x1a0 [ 71.011918][ T4337] do_exit+0x626/0x20c0 [ 71.016747][ T4337] do_group_exit+0x12e/0x300 [ 71.021879][ T4337] get_signal+0x6ca/0x12c0 [ 71.026831][ T4337] arch_do_signal_or_restart+0xe7/0x12c0 [ 71.033080][ T4337] exit_to_user_mode_loop+0x9e/0x130 [ 71.038888][ T4337] exit_to_user_mode_prepare+0xee/0x180 [ 71.044956][ T4337] syscall_exit_to_user_mode+0x16/0x40 [ 71.051028][ T4337] do_syscall_64+0x58/0xa0 [ 71.056182][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.062704][ T4337] [ 71.062704][ T4337] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 71.070355][ T4337] __mutex_lock_common+0x1e3/0x2400 [ 71.076087][ T4337] mutex_lock_nested+0x17/0x20 [ 71.081374][ T4337] bg_scan_update+0x44/0x3b0 [ 71.086488][ T4337] process_one_work+0x85f/0x1010 [ 71.091953][ T4337] worker_thread+0xaa6/0x1290 [ 71.097151][ T4337] kthread+0x436/0x520 [ 71.101743][ T4337] ret_from_fork+0x1f/0x30 [ 71.106770][ T4337] [ 71.106770][ T4337] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 71.116616][ T4337] __lock_acquire+0x2c42/0x7d10 [ 71.121995][ T4337] lock_acquire+0x19e/0x400 [ 71.127020][ T4337] __flush_work+0x116/0x210 [ 71.132054][ T4337] __cancel_work_timer+0x3f4/0x560 [ 71.137685][ T4337] hci_request_cancel_all+0xcc/0x300 [ 71.143503][ T4337] hci_dev_do_close+0x4e/0x1030 [ 71.148872][ T4337] hci_rfkill_set_block+0x10a/0x190 [ 71.154597][ T4337] rfkill_set_block+0x1c6/0x420 [ 71.160209][ T4337] rfkill_fop_write+0x452/0x560 [ 71.165583][ T4337] vfs_write+0x30b/0xd60 [ 71.170343][ T4337] ksys_write+0x152/0x260 [ 71.175188][ T4337] do_syscall_64+0x4c/0xa0 [ 71.180122][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.186537][ T4337] [ 71.186537][ T4337] other info that might help us debug this: [ 71.186537][ T4337] [ 71.196757][ T4337] Chain exists of: [ 71.196757][ T4337] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 71.196757][ T4337] [ 71.212570][ T4337] Possible unsafe locking scenario: [ 71.212570][ T4337] [ 71.220036][ T4337] CPU0 CPU1 [ 71.225399][ T4337] ---- ---- [ 71.230756][ T4337] lock(rfkill_global_mutex); [ 71.235519][ T4337] lock(&data->open_mutex); [ 71.242628][ T4337] lock(rfkill_global_mutex); [ 71.249914][ T4337] lock((work_completion)(&hdev->bg_scan_update)); [ 71.256584][ T4337] [ 71.256584][ T4337] *** DEADLOCK *** [ 71.256584][ T4337] [ 71.264731][ T4337] 1 lock held by syz.0.17/4337: [ 71.269591][ T4337] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 71.279707][ T4337] [ 71.279707][ T4337] stack backtrace: [ 71.285603][ T4337] CPU: 1 PID: 4337 Comm: syz.0.17 Not tainted syzkaller #0 [ 71.292800][ T4337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 71.302853][ T4337] Call Trace: [ 71.306132][ T4337] [ 71.309066][ T4337] dump_stack_lvl+0x188/0x250 [ 71.313752][ T4337] ? load_image+0x400/0x400 [ 71.318256][ T4337] ? show_regs_print_info+0x20/0x20 [ 71.323457][ T4337] ? print_circular_bug+0x12b/0x1a0 [ 71.328655][ T4337] check_noncircular+0x296/0x330 [ 71.333592][ T4337] ? look_up_lock_class+0x71/0x110 [ 71.338701][ T4337] ? add_chain_block+0x940/0x940 [ 71.343638][ T4337] ? lockdep_lock+0xf1/0x1f0 [ 71.348230][ T4337] ? __lock_acquire+0x12e8/0x7d10 [ 71.353258][ T4337] ? mark_lock+0x94/0x320 [ 71.357588][ T4337] __lock_acquire+0x2c42/0x7d10 [ 71.362442][ T4337] ? verify_lock_unused+0x140/0x140 [ 71.367645][ T4337] ? verify_lock_unused+0x140/0x140 [ 71.372849][ T4337] ? mark_lock+0x94/0x320 [ 71.377181][ T4337] lock_acquire+0x19e/0x400 [ 71.381687][ T4337] ? __flush_work+0xfa/0x210 [ 71.386275][ T4337] ? __lock_acquire+0x7d10/0x7d10 [ 71.391424][ T4337] ? read_lock_is_recursive+0x10/0x10 [ 71.396963][ T4337] ? start_flush_work+0x776/0x820 [ 71.402252][ T4337] __flush_work+0x116/0x210 [ 71.406774][ T4337] ? __flush_work+0xfa/0x210 [ 71.411372][ T4337] ? flush_work+0x20/0x20 [ 71.415711][ T4337] ? try_to_grab_pending+0xfa/0x7f0 [ 71.420912][ T4337] ? mark_lock+0x94/0x320 [ 71.425241][ T4337] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 71.431225][ T4337] ? lock_chain_count+0x20/0x20 [ 71.436074][ T4337] ? mark_lock+0x94/0x320 [ 71.440406][ T4337] ? __cancel_work_timer+0x36a/0x560 [ 71.445776][ T4337] __cancel_work_timer+0x3f4/0x560 [ 71.451005][ T4337] ? cancel_work_sync+0x20/0x20 [ 71.455873][ T4337] ? __cancel_work+0x1f9/0x2e0 [ 71.460746][ T4337] ? lockdep_hardirqs_on+0x94/0x140 [ 71.465966][ T4337] ? __cancel_work+0x27b/0x2e0 [ 71.470835][ T4337] ? cancel_work+0x20/0x20 [ 71.475259][ T4337] ? lock_chain_count+0x20/0x20 [ 71.480119][ T4337] hci_request_cancel_all+0xcc/0x300 [ 71.485408][ T4337] hci_dev_do_close+0x4e/0x1030 [ 71.490258][ T4337] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 71.496192][ T4337] ? _raw_spin_unlock+0x40/0x40 [ 71.501046][ T4337] hci_rfkill_set_block+0x10a/0x190 [ 71.506248][ T4337] ? rcu_lock_release+0x20/0x20 [ 71.511107][ T4337] rfkill_set_block+0x1c6/0x420 [ 71.515963][ T4337] rfkill_fop_write+0x452/0x560 [ 71.520830][ T4337] ? rfkill_fop_read+0x4d0/0x4d0 [ 71.525786][ T4337] ? common_file_perm+0x110/0x1c0 [ 71.530920][ T4337] ? fsnotify_perm+0x5d/0x560 [ 71.535615][ T4337] ? security_file_permission+0x75/0xa0 [ 71.541182][ T4337] ? rfkill_fop_read+0x4d0/0x4d0 [ 71.546133][ T4337] vfs_write+0x30b/0xd60 [ 71.550387][ T4337] ? file_end_write+0x250/0x250 [ 71.555337][ T4337] ? __context_tracking_exit+0x4c/0x80 [ 71.561074][ T4337] ? __lock_acquire+0x7d10/0x7d10 [ 71.566115][ T4337] ? __fdget_pos+0x1e2/0x370 [ 71.570711][ T4337] ksys_write+0x152/0x260 [ 71.575048][ T4337] ? __ia32_sys_read+0x80/0x80 [ 71.579818][ T4337] ? lockdep_hardirqs_on+0x94/0x140 [ 71.585024][ T4337] do_syscall_64+0x4c/0xa0 [ 71.589439][ T4337] ? clear_bhb_loop+0x30/0x80 [ 71.594114][ T4337] ? clear_bhb_loop+0x30/0x80 [ 71.598802][ T4337] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.604867][ T4337] RIP: 0033:0x7f7ba14c8819 [ 71.609291][ T4337] 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 [ 71.628901][ T4337] RSP: 002b:00007ffe97fe93e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.637319][ T4337] RAX: ffffffffffffffda RBX: 00007f7ba1741fa0 RCX: 00007f7ba14c8819 [ 71.645295][ T4337] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 71.653276][ T4337] RBP: 00007f7ba155ec91 R08: 0000000000000000 R09: 0000000000000000 [ 71.661263][ T4337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 71.669237][ T4337] R13: 00007f7ba1741fac R14: 00007f7ba1741fa0 R15: 00007f7ba1741fa0 [ 71.677220][ T4337] [ 71.683581][ T1428] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.689921][ T1428] ieee802154 phy1 wpan1: encryption failed: -22