Warning: Permanently added '10.128.0.159' (ED25519) to the list of known hosts. 2025/09/09 11:02:29 parsed 1 programs [ 63.102690][ T4188] cgroup: Unknown subsys name 'net' [ 63.206988][ T4188] cgroup: Unknown subsys name 'rlimit' [ 64.779777][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 68.351661][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.359762][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.373868][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.388040][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.397384][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.406197][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.813170][ T4264] chnl_net:caif_netlink_parms(): no params data found [ 68.863938][ T4264] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.871309][ T4264] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.879213][ T4264] device bridge_slave_0 entered promiscuous mode [ 68.909864][ T4264] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.917486][ T4264] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.926225][ T4264] device bridge_slave_1 entered promiscuous mode [ 68.967497][ T4264] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.978753][ T4264] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.007284][ T4264] team0: Port device team_slave_0 added [ 69.028985][ T4264] team0: Port device team_slave_1 added [ 69.049023][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.056433][ T4264] 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. [ 69.082549][ T4264] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.095796][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.103043][ T4264] 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. [ 69.129805][ T4264] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.181888][ T4264] device hsr_slave_0 entered promiscuous mode [ 69.190889][ T4264] device hsr_slave_1 entered promiscuous mode [ 69.325666][ T4264] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.337998][ T4264] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.360776][ T4264] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.369916][ T4264] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.455474][ T4264] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.469092][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.479009][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.492027][ T4264] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.504689][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.513699][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.523155][ T337] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.530462][ T337] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.539156][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.553200][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.562099][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.571826][ T337] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.578885][ T337] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.602927][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.613678][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.624246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.634639][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.647024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.682145][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.693219][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.702146][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.712909][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.726930][ T4264] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.885536][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.893845][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.908344][ T4264] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.933509][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.960392][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.972001][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.979936][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.993612][ T4264] device veth0_vlan entered promiscuous mode [ 70.007618][ T4264] device veth1_vlan entered promiscuous mode [ 70.034766][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.044332][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.053325][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.066313][ T4264] device veth0_macvtap entered promiscuous mode [ 70.079000][ T4264] device veth1_macvtap entered promiscuous mode [ 70.099428][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.116693][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.126666][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.137571][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.151425][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.159095][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.168481][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.182524][ T4264] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.193205][ T4264] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.202612][ T4264] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.211509][ T4264] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/09/09 11:02:39 executed programs: 0 [ 71.120640][ T4295] chnl_net:caif_netlink_parms(): no params data found [ 71.186897][ T1280] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.203064][ T4295] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.211390][ T4295] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.219294][ T4295] device bridge_slave_0 entered promiscuous mode [ 71.228246][ T4295] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.235683][ T4295] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.244160][ T4295] device bridge_slave_1 entered promiscuous mode [ 71.267527][ T4295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.278486][ T4295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.308287][ T4295] team0: Port device team_slave_0 added [ 71.316726][ T4295] team0: Port device team_slave_1 added [ 71.335227][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.342515][ T4295] 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. [ 71.368778][ T4295] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.384325][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.384738][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.391539][ T4295] 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. [ 71.423939][ T4295] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.424383][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.461802][ T4295] device hsr_slave_0 entered promiscuous mode [ 71.468810][ T4295] device hsr_slave_1 entered promiscuous mode [ 71.476120][ T4295] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.484250][ T4295] Cannot create hsr debugfs directory [ 73.070885][ T4244] Bluetooth: hci0: command 0x0409 tx timeout [ 73.537722][ T1280] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.140507][ T4242] Bluetooth: hci0: command 0x041b tx timeout [ 75.296652][ T1280] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.338312][ T1280] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.247301][ T4295] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.258276][ T4295] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.287916][ T4295] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.298278][ T4295] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.373181][ T4295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.398460][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.406394][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.418167][ T4295] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.447997][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.457604][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.466271][ T337] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.473398][ T337] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.483081][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.492984][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.502048][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.511309][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.518640][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.538960][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.568879][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.578463][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.588860][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.597961][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.607360][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.617001][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.634832][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.644339][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.661322][ T1280] device hsr_slave_0 left promiscuous mode [ 76.668957][ T1280] device hsr_slave_1 left promiscuous mode [ 76.677574][ T1280] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.685291][ T1280] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.693902][ T1280] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.701607][ T1280] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.709308][ T1280] device bridge_slave_1 left promiscuous mode [ 76.716511][ T1280] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.729742][ T1280] device bridge_slave_0 left promiscuous mode [ 76.737292][ T1280] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.756337][ T1280] device veth1_macvtap left promiscuous mode [ 76.763748][ T1280] device veth0_macvtap left promiscuous mode [ 76.769843][ T1280] device veth1_vlan left promiscuous mode [ 76.776578][ T1280] device veth0_vlan left promiscuous mode [ 76.944043][ T1280] team0 (unregistering): Port device team_slave_1 removed [ 76.958198][ T1280] team0 (unregistering): Port device team_slave_0 removed [ 76.973874][ T1280] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.988424][ T1280] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 77.048036][ T1280] bond0 (unregistering): Released all slaves [ 77.110637][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.119154][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.128991][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.221131][ T23] Bluetooth: hci0: command 0x040f tx timeout [ 77.240773][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.248836][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.265426][ T4295] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.282440][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.293349][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.317787][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.332261][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.341148][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.348960][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.361375][ T4295] device veth0_vlan entered promiscuous mode [ 77.373371][ T4295] device veth1_vlan entered promiscuous mode [ 77.400586][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.408738][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.417372][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.426839][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.437867][ T4295] device veth0_macvtap entered promiscuous mode [ 77.456257][ T4295] device veth1_macvtap entered promiscuous mode [ 77.477675][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.485239][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.494788][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.504740][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.517240][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.525700][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.535134][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.547916][ T4295] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.557245][ T4295] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.566037][ T4295] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.575610][ T4295] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.658980][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.679245][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.704012][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.715102][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.724322][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.736426][ T337] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.884539][ T4347] [ 77.887026][ T4347] ====================================================== [ 77.894058][ T4347] WARNING: possible circular locking dependency detected [ 77.901121][ T4347] syzkaller #0 Not tainted [ 77.905555][ T4347] ------------------------------------------------------ [ 77.912792][ T4347] syz.0.17/4347 is trying to acquire lock: [ 77.918744][ T4347] ffff888029bf8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 77.929972][ T4347] [ 77.929972][ T4347] but task is already holding lock: [ 77.937461][ T4347] ffffffff8d4c0068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 77.947179][ T4347] [ 77.947179][ T4347] which lock already depends on the new lock. [ 77.947179][ T4347] [ 77.958643][ T4347] [ 77.958643][ T4347] the existing dependency chain (in reverse order) is: [ 77.967698][ T4347] [ 77.967698][ T4347] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 77.975722][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 77.981473][ T4347] mutex_lock_nested+0x17/0x20 [ 77.986779][ T4347] rfkill_register+0x33/0x8a0 [ 77.992003][ T4347] hci_register_dev+0x452/0x970 [ 77.997404][ T4347] vhci_create_device+0x32c/0x5c0 [ 78.002969][ T4347] vhci_write+0x391/0x450 [ 78.008053][ T4347] vfs_write+0x712/0xd00 [ 78.012964][ T4347] ksys_write+0x14d/0x250 [ 78.017842][ T4347] do_syscall_64+0x4c/0xa0 [ 78.022799][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.029236][ T4347] [ 78.029236][ T4347] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 78.037074][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 78.042952][ T4347] mutex_lock_nested+0x17/0x20 [ 78.048258][ T4347] vhci_send_frame+0x88/0x100 [ 78.053471][ T4347] hci_send_frame+0x1a9/0x2e0 [ 78.058694][ T4347] hci_tx_work+0x9f9/0x1710 [ 78.063734][ T4347] process_one_work+0x863/0x1000 [ 78.069214][ T4347] worker_thread+0xaa8/0x12a0 [ 78.074434][ T4347] kthread+0x436/0x520 [ 78.079037][ T4347] ret_from_fork+0x1f/0x30 [ 78.084003][ T4347] [ 78.084003][ T4347] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 78.093231][ T4347] __flush_work+0xdd/0x1b0 [ 78.098187][ T4347] hci_dev_do_close+0x1e7/0x1030 [ 78.103677][ T4347] hci_unregister_dev+0x2d7/0x580 [ 78.109237][ T4347] vhci_release+0x73/0xc0 [ 78.114205][ T4347] __fput+0x234/0x930 [ 78.118836][ T4347] task_work_run+0x125/0x1a0 [ 78.124971][ T4347] do_exit+0x61e/0x20a0 [ 78.129961][ T4347] do_group_exit+0x12e/0x300 [ 78.135222][ T4347] get_signal+0x6ca/0x12c0 [ 78.140261][ T4347] arch_do_signal_or_restart+0xc1/0x1300 [ 78.146446][ T4347] exit_to_user_mode_loop+0x9e/0x130 [ 78.152283][ T4347] exit_to_user_mode_prepare+0xb1/0x140 [ 78.158474][ T4347] syscall_exit_to_user_mode+0x16/0x40 [ 78.164514][ T4347] do_syscall_64+0x58/0xa0 [ 78.169498][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.176091][ T4347] [ 78.176091][ T4347] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 78.183770][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 78.189524][ T4347] mutex_lock_nested+0x17/0x20 [ 78.194843][ T4347] bg_scan_update+0x44/0x3b0 [ 78.199973][ T4347] process_one_work+0x863/0x1000 [ 78.205463][ T4347] worker_thread+0xaa8/0x12a0 [ 78.210822][ T4347] kthread+0x436/0x520 [ 78.215448][ T4347] ret_from_fork+0x1f/0x30 [ 78.220452][ T4347] [ 78.220452][ T4347] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 78.230397][ T4347] __lock_acquire+0x2c33/0x7c60 [ 78.235852][ T4347] lock_acquire+0x197/0x3f0 [ 78.240890][ T4347] __flush_work+0xdd/0x1b0 [ 78.245834][ T4347] __cancel_work_timer+0x3ac/0x520 [ 78.251463][ T4347] hci_request_cancel_all+0xcc/0x300 [ 78.257268][ T4347] hci_dev_do_close+0x4e/0x1030 [ 78.262643][ T4347] hci_rfkill_set_block+0x10a/0x190 [ 78.268405][ T4347] rfkill_set_block+0x1c6/0x420 [ 78.273876][ T4347] rfkill_fop_write+0x458/0x560 [ 78.279374][ T4347] vfs_write+0x300/0xd00 [ 78.284140][ T4347] ksys_write+0x14d/0x250 [ 78.288995][ T4347] do_syscall_64+0x4c/0xa0 [ 78.294037][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.300544][ T4347] [ 78.300544][ T4347] other info that might help us debug this: [ 78.300544][ T4347] [ 78.310765][ T4347] Chain exists of: [ 78.310765][ T4347] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 78.310765][ T4347] [ 78.326637][ T4347] Possible unsafe locking scenario: [ 78.326637][ T4347] [ 78.334093][ T4347] CPU0 CPU1 [ 78.339462][ T4347] ---- ---- [ 78.344825][ T4347] lock(rfkill_global_mutex); [ 78.349624][ T4347] lock(&data->open_mutex); [ 78.356740][ T4347] lock(rfkill_global_mutex); [ 78.364063][ T4347] lock((work_completion)(&hdev->bg_scan_update)); [ 78.370788][ T4347] [ 78.370788][ T4347] *** DEADLOCK *** [ 78.370788][ T4347] [ 78.378930][ T4347] 1 lock held by syz.0.17/4347: [ 78.383794][ T4347] #0: ffffffff8d4c0068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 78.393896][ T4347] [ 78.393896][ T4347] stack backtrace: [ 78.399792][ T4347] CPU: 1 PID: 4347 Comm: syz.0.17 Not tainted syzkaller #0 [ 78.406985][ T4347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 78.417334][ T4347] Call Trace: [ 78.420611][ T4347] [ 78.423629][ T4347] dump_stack_lvl+0x168/0x230 [ 78.428319][ T4347] ? load_image+0x3b0/0x3b0 [ 78.432826][ T4347] ? show_regs_print_info+0x20/0x20 [ 78.438154][ T4347] ? print_circular_bug+0x12b/0x1a0 [ 78.443450][ T4347] check_noncircular+0x274/0x310 [ 78.448394][ T4347] ? add_chain_block+0x940/0x940 [ 78.453332][ T4347] ? lockdep_lock+0xdc/0x1e0 [ 78.457930][ T4347] ? __lock_acquire+0x12d9/0x7c60 [ 78.463234][ T4347] ? lockdep_lock+0x1e0/0x1e0 [ 78.467921][ T4347] ? mark_lock+0x94/0x320 [ 78.472396][ T4347] __lock_acquire+0x2c33/0x7c60 [ 78.477263][ T4347] ? verify_lock_unused+0x140/0x140 [ 78.482472][ T4347] ? verify_lock_unused+0x140/0x140 [ 78.487690][ T4347] lock_acquire+0x197/0x3f0 [ 78.492197][ T4347] ? __flush_work+0xc1/0x1b0 [ 78.496788][ T4347] ? __lock_acquire+0x7c60/0x7c60 [ 78.501816][ T4347] ? read_lock_is_recursive+0x10/0x10 [ 78.507199][ T4347] ? start_flush_work+0x776/0x820 [ 78.512226][ T4347] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 78.518580][ T4347] ? _raw_spin_unlock+0x40/0x40 [ 78.523528][ T4347] __flush_work+0xdd/0x1b0 [ 78.528119][ T4347] ? __flush_work+0xc1/0x1b0 [ 78.532721][ T4347] ? flush_work+0x20/0x20 [ 78.537136][ T4347] ? try_to_grab_pending+0xf3/0x7e0 [ 78.542347][ T4347] ? lockdep_hardirqs_off+0x70/0x100 [ 78.547645][ T4347] ? mark_lock+0x94/0x320 [ 78.551983][ T4347] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 78.558110][ T4347] ? lock_chain_count+0x20/0x20 [ 78.562980][ T4347] ? mark_lock+0x94/0x320 [ 78.567330][ T4347] ? __cancel_work_timer+0x331/0x520 [ 78.573145][ T4347] __cancel_work_timer+0x3ac/0x520 [ 78.578350][ T4347] ? cancel_work_sync+0x20/0x20 [ 78.583498][ T4347] ? __cancel_work+0x1f4/0x2d0 [ 78.588267][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 78.593494][ T4347] ? __cancel_work+0x26f/0x2d0 [ 78.598267][ T4347] ? cancel_work+0x20/0x20 [ 78.602691][ T4347] ? lock_chain_count+0x20/0x20 [ 78.607555][ T4347] hci_request_cancel_all+0xcc/0x300 [ 78.612858][ T4347] hci_dev_do_close+0x4e/0x1030 [ 78.617747][ T4347] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 78.623650][ T4347] ? _raw_spin_unlock+0x40/0x40 [ 78.628784][ T4347] hci_rfkill_set_block+0x10a/0x190 [ 78.633984][ T4347] ? rcu_lock_release+0x20/0x20 [ 78.638839][ T4347] rfkill_set_block+0x1c6/0x420 [ 78.643695][ T4347] rfkill_fop_write+0x458/0x560 [ 78.648552][ T4347] ? verify_lock_unused+0x140/0x140 [ 78.653844][ T4347] ? rfkill_fop_read+0x4b0/0x4b0 [ 78.658779][ T4347] ? common_file_perm+0x130/0x1c0 [ 78.663802][ T4347] ? fsnotify_perm+0x5d/0x560 [ 78.668487][ T4347] ? security_file_permission+0x75/0xa0 [ 78.674317][ T4347] ? rfkill_fop_read+0x4b0/0x4b0 [ 78.679289][ T4347] vfs_write+0x300/0xd00 [ 78.683539][ T4347] ? file_end_write+0x250/0x250 [ 78.688410][ T4347] ? __context_tracking_exit+0x4c/0x80 [ 78.693887][ T4347] ? __lock_acquire+0x7c60/0x7c60 [ 78.698931][ T4347] ? __fdget_pos+0x1e2/0x370 [ 78.703530][ T4347] ksys_write+0x14d/0x250 [ 78.707860][ T4347] ? __ia32_sys_read+0x80/0x80 [ 78.712623][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 78.717909][ T4347] do_syscall_64+0x4c/0xa0 [ 78.722324][ T4347] ? clear_bhb_loop+0x30/0x80 [ 78.727001][ T4347] ? clear_bhb_loop+0x30/0x80 [ 78.731677][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.737591][ T4347] RIP: 0033:0x7fed2a467be9 [ 78.742048][ T4347] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 78.761656][ T4347] RSP: 002b:00007ffc2de2c428 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.770075][ T4347] RAX: ffffffffffffffda RBX: 00007fed2a69efa0 RCX: 00007fed2a467be9 [ 78.778073][ T4347] RDX: 0000000000000008 RSI: 00002000000002c0 RDI: 0000000000000003 [ 78.786049][ T4347] RBP: 00007fed2a4eae19 R08: 0000000000000000 R09: 0000000000000000 [ 78.794032][ T4347] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.802000][ T4347] R13: 00007fed2a69efa0 R14: 00007fed2a69efa0 R15: 0000000000000003 [ 78.810061][ T4347]