Warning: Permanently added '10.128.0.168' (ED25519) to the list of known hosts. 2025/09/14 03:36:57 parsed 1 programs [ 62.517023][ T4191] cgroup: Unknown subsys name 'net' [ 62.651068][ T4191] cgroup: Unknown subsys name 'rlimit' [ 64.003282][ T4191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 65.763247][ T4207] chnl_net:caif_netlink_parms(): no params data found [ 65.808801][ T4207] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.816330][ T4207] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.824063][ T4207] device bridge_slave_0 entered promiscuous mode [ 65.832862][ T4207] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.839977][ T4207] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.847863][ T4207] device bridge_slave_1 entered promiscuous mode [ 65.871831][ T4207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.882596][ T4207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.905747][ T4207] team0: Port device team_slave_0 added [ 65.913037][ T4207] team0: Port device team_slave_1 added [ 65.936428][ T4207] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.943387][ T4207] 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. [ 65.969375][ T4207] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.982639][ T4207] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.989701][ T4207] 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. [ 66.015846][ T4207] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.053418][ T4207] device hsr_slave_0 entered promiscuous mode [ 66.060516][ T4207] device hsr_slave_1 entered promiscuous mode [ 66.182581][ T4207] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.194104][ T4207] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.204342][ T4207] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.214092][ T4207] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.244449][ T4207] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.251682][ T4207] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.259561][ T4207] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.266666][ T4207] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.320041][ T4207] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.333369][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.345309][ T1421] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.353468][ T1421] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.364004][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.377490][ T4207] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.389843][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.400547][ T1421] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.407671][ T1421] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.435746][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.445778][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.452839][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.462433][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.474033][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.482850][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.508975][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.518103][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.529854][ T4207] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.641588][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.650476][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.664201][ T4207] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.685981][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.708236][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.718290][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.726734][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.736484][ T4207] device veth0_vlan entered promiscuous mode [ 66.749303][ T4207] device veth1_vlan entered promiscuous mode [ 66.772436][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.783009][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.794643][ T4207] device veth0_macvtap entered promiscuous mode [ 66.803646][ T4207] device veth1_macvtap entered promiscuous mode [ 66.821799][ T4207] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.832820][ T4207] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.841638][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.850854][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.859775][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.870707][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.879928][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.889786][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.902843][ T4207] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.911978][ T4207] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.921137][ T4207] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.930058][ T4207] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.050408][ T4207] syz-executor (4207) used greatest stack depth: 21152 bytes left [ 67.222679][ T3063] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.400179][ T3063] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.258059][ T1428] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.264499][ T1428] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.919217][ T3063] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.981918][ T3063] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.902136][ T3063] device hsr_slave_0 left promiscuous mode [ 72.925243][ T3063] device hsr_slave_1 left promiscuous mode [ 72.931802][ T3063] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.954767][ T3063] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.966363][ T3063] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.973766][ T3063] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 73.005241][ T3063] device bridge_slave_1 left promiscuous mode [ 73.012250][ T3063] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.041264][ T3063] device bridge_slave_0 left promiscuous mode [ 73.057230][ T3063] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.083171][ T3063] device veth1_macvtap left promiscuous mode [ 73.089558][ T3063] device veth0_macvtap left promiscuous mode [ 73.096345][ T3063] device veth1_vlan left promiscuous mode [ 73.102379][ T3063] device veth0_vlan left promiscuous mode [ 73.256260][ T3063] team0 (unregistering): Port device team_slave_1 removed [ 73.267983][ T3063] team0 (unregistering): Port device team_slave_0 removed [ 73.281124][ T3063] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 73.294715][ T3063] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.344328][ T3063] bond0 (unregistering): Released all slaves [ 73.646101][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.654109][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.681487][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.699510][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.719452][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.728365][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/09/14 03:37:10 executed programs: 0 [ 74.731207][ T4374] chnl_net:caif_netlink_parms(): no params data found [ 74.827264][ T4374] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.844826][ T4374] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.864675][ T4374] device bridge_slave_0 entered promiscuous mode [ 74.885674][ T4374] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.892791][ T4374] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.916540][ T4374] device bridge_slave_1 entered promiscuous mode [ 74.979394][ T4374] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.997219][ T4374] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.061768][ T4374] team0: Port device team_slave_0 added [ 75.073916][ T4374] team0: Port device team_slave_1 added [ 75.132793][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.140266][ T4374] 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. [ 75.166525][ T4374] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.178992][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.186185][ T4374] 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. [ 75.212183][ T4374] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.269493][ T4374] device hsr_slave_0 entered promiscuous mode [ 75.280286][ T4374] device hsr_slave_1 entered promiscuous mode [ 76.026984][ T4374] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.038420][ T4374] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.048747][ T4374] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.058393][ T4374] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.126399][ T4374] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.142034][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.152187][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.164380][ T4374] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.176167][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.187964][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.197172][ T1171] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.204235][ T1171] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.227903][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.236655][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.246599][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.257715][ T1171] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.264993][ T1171] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.278033][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.287014][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.297849][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.307678][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.359390][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.369398][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.379733][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.388596][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.398737][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.407626][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.417389][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.427541][ T4374] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.535458][ T4443] Bluetooth: hci0: command 0x0409 tx timeout [ 76.586112][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.593534][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.608672][ T4374] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.655654][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.664191][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.684497][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.693134][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.703546][ T4374] device veth0_vlan entered promiscuous mode [ 76.741911][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.751065][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.763512][ T4374] device veth1_vlan entered promiscuous mode [ 76.820975][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.829164][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.837634][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.846398][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.865656][ T4374] device veth0_macvtap entered promiscuous mode [ 76.872711][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.883271][ T4374] device veth1_macvtap entered promiscuous mode [ 76.941384][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.949640][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.962512][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.975153][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.984435][ T4374] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.996291][ T4374] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.006394][ T4374] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.015553][ T4374] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.027254][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.036821][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.114902][ T1171] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.122943][ T1171] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.161057][ T1421] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.171080][ T1421] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.180060][ T1421] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.191077][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.330028][ T4513] [ 77.332388][ T4513] ====================================================== [ 77.339403][ T4513] WARNING: possible circular locking dependency detected [ 77.346428][ T4513] syzkaller #0 Not tainted [ 77.350846][ T4513] ------------------------------------------------------ [ 77.357867][ T4513] syz.0.17/4513 is trying to acquire lock: [ 77.363684][ T4513] ffff88807df94c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 77.374773][ T4513] [ 77.374773][ T4513] but task is already holding lock: [ 77.382136][ T4513] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 77.391827][ T4513] [ 77.391827][ T4513] which lock already depends on the new lock. [ 77.391827][ T4513] [ 77.402231][ T4513] [ 77.402231][ T4513] the existing dependency chain (in reverse order) is: [ 77.411248][ T4513] [ 77.411248][ T4513] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 77.419253][ T4513] __mutex_lock_common+0x1eb/0x2390 [ 77.424978][ T4513] mutex_lock_nested+0x17/0x20 [ 77.430289][ T4513] rfkill_register+0x33/0x8a0 [ 77.435480][ T4513] hci_register_dev+0x452/0x970 [ 77.440849][ T4513] vhci_create_device+0x32c/0x5c0 [ 77.446385][ T4513] vhci_write+0x391/0x450 [ 77.451225][ T4513] vfs_write+0x712/0xd00 [ 77.455985][ T4513] ksys_write+0x14d/0x250 [ 77.460829][ T4513] do_syscall_64+0x4c/0xa0 [ 77.465761][ T4513] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.472166][ T4513] [ 77.472166][ T4513] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 77.479966][ T4513] __mutex_lock_common+0x1eb/0x2390 [ 77.485677][ T4513] mutex_lock_nested+0x17/0x20 [ 77.490950][ T4513] vhci_send_frame+0x88/0x100 [ 77.496143][ T4513] hci_send_frame+0x1a9/0x2e0 [ 77.501335][ T4513] hci_tx_work+0x9f9/0x1710 [ 77.506353][ T4513] process_one_work+0x863/0x1000 [ 77.511803][ T4513] worker_thread+0xaa8/0x12a0 [ 77.516989][ T4513] kthread+0x436/0x520 [ 77.521568][ T4513] ret_from_fork+0x1f/0x30 [ 77.526497][ T4513] [ 77.526497][ T4513] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 77.535689][ T4513] __flush_work+0xdd/0x1b0 [ 77.540617][ T4513] hci_dev_do_close+0x1e7/0x1030 [ 77.546069][ T4513] hci_unregister_dev+0x2d7/0x580 [ 77.551614][ T4513] vhci_release+0x73/0xc0 [ 77.556451][ T4513] __fput+0x234/0x930 [ 77.560945][ T4513] task_work_run+0x125/0x1a0 [ 77.566053][ T4513] do_exit+0x61e/0x20a0 [ 77.570719][ T4513] do_group_exit+0x12e/0x300 [ 77.575823][ T4513] get_signal+0x6ca/0x12c0 [ 77.580750][ T4513] arch_do_signal_or_restart+0xc1/0x1300 [ 77.586900][ T4513] exit_to_user_mode_loop+0x9e/0x130 [ 77.592693][ T4513] exit_to_user_mode_prepare+0xee/0x180 [ 77.598750][ T4513] syscall_exit_to_user_mode+0x16/0x40 [ 77.604721][ T4513] do_syscall_64+0x58/0xa0 [ 77.609642][ T4513] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.616041][ T4513] [ 77.616041][ T4513] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 77.623673][ T4513] __mutex_lock_common+0x1eb/0x2390 [ 77.629379][ T4513] mutex_lock_nested+0x17/0x20 [ 77.634651][ T4513] bg_scan_update+0x44/0x3b0 [ 77.639750][ T4513] process_one_work+0x863/0x1000 [ 77.645215][ T4513] worker_thread+0xaa8/0x12a0 [ 77.650403][ T4513] kthread+0x436/0x520 [ 77.654992][ T4513] ret_from_fork+0x1f/0x30 [ 77.659916][ T4513] [ 77.659916][ T4513] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 77.669710][ T4513] __lock_acquire+0x2c33/0x7c60 [ 77.675080][ T4513] lock_acquire+0x197/0x3f0 [ 77.680093][ T4513] __flush_work+0xdd/0x1b0 [ 77.685017][ T4513] __cancel_work_timer+0x3ac/0x520 [ 77.690639][ T4513] hci_request_cancel_all+0xcc/0x300 [ 77.696436][ T4513] hci_dev_do_close+0x4e/0x1030 [ 77.701795][ T4513] hci_rfkill_set_block+0x10a/0x190 [ 77.707508][ T4513] rfkill_set_block+0x1c6/0x420 [ 77.712887][ T4513] rfkill_fop_write+0x458/0x560 [ 77.718259][ T4513] vfs_write+0x300/0xd00 [ 77.723011][ T4513] ksys_write+0x14d/0x250 [ 77.727854][ T4513] do_syscall_64+0x4c/0xa0 [ 77.732779][ T4513] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.739188][ T4513] [ 77.739188][ T4513] other info that might help us debug this: [ 77.739188][ T4513] [ 77.749417][ T4513] Chain exists of: [ 77.749417][ T4513] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 77.749417][ T4513] [ 77.765142][ T4513] Possible unsafe locking scenario: [ 77.765142][ T4513] [ 77.772581][ T4513] CPU0 CPU1 [ 77.777943][ T4513] ---- ---- [ 77.783299][ T4513] lock(rfkill_global_mutex); [ 77.788073][ T4513] lock(&data->open_mutex); [ 77.795175][ T4513] lock(rfkill_global_mutex); [ 77.802453][ T4513] lock((work_completion)(&hdev->bg_scan_update)); [ 77.809041][ T4513] [ 77.809041][ T4513] *** DEADLOCK *** [ 77.809041][ T4513] [ 77.817181][ T4513] 1 lock held by syz.0.17/4513: [ 77.822036][ T4513] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 77.832127][ T4513] [ 77.832127][ T4513] stack backtrace: [ 77.838039][ T4513] CPU: 1 PID: 4513 Comm: syz.0.17 Not tainted syzkaller #0 [ 77.845235][ T4513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 77.855287][ T4513] Call Trace: [ 77.858555][ T4513] [ 77.861521][ T4513] dump_stack_lvl+0x168/0x230 [ 77.866284][ T4513] ? load_image+0x3b0/0x3b0 [ 77.870786][ T4513] ? show_regs_print_info+0x20/0x20 [ 77.876008][ T4513] ? print_circular_bug+0x12b/0x1a0 [ 77.881202][ T4513] check_noncircular+0x274/0x310 [ 77.886156][ T4513] ? add_chain_block+0x940/0x940 [ 77.891084][ T4513] ? lockdep_lock+0xdc/0x1e0 [ 77.895675][ T4513] ? __lock_acquire+0x12d9/0x7c60 [ 77.900701][ T4513] ? lockdep_lock+0x1e0/0x1e0 [ 77.905374][ T4513] ? mark_lock+0x94/0x320 [ 77.909699][ T4513] __lock_acquire+0x2c33/0x7c60 [ 77.914545][ T4513] ? verify_lock_unused+0x140/0x140 [ 77.919735][ T4513] ? verify_lock_unused+0x140/0x140 [ 77.924922][ T4513] ? mark_lock+0x94/0x320 [ 77.929256][ T4513] lock_acquire+0x197/0x3f0 [ 77.933771][ T4513] ? __flush_work+0xc1/0x1b0 [ 77.938363][ T4513] ? __lock_acquire+0x7c60/0x7c60 [ 77.943382][ T4513] ? read_lock_is_recursive+0x10/0x10 [ 77.948745][ T4513] ? start_flush_work+0x776/0x820 [ 77.953761][ T4513] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 77.959663][ T4513] ? _raw_spin_unlock+0x40/0x40 [ 77.964508][ T4513] __flush_work+0xdd/0x1b0 [ 77.968917][ T4513] ? __flush_work+0xc1/0x1b0 [ 77.973498][ T4513] ? flush_work+0x20/0x20 [ 77.977819][ T4513] ? try_to_grab_pending+0xf3/0x7e0 [ 77.983046][ T4513] ? lockdep_hardirqs_off+0x70/0x100 [ 77.988319][ T4513] ? mark_lock+0x94/0x320 [ 77.992649][ T4513] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 77.998620][ T4513] ? lock_chain_count+0x20/0x20 [ 78.003460][ T4513] ? mark_lock+0x94/0x320 [ 78.007778][ T4513] ? __cancel_work_timer+0x331/0x520 [ 78.013054][ T4513] __cancel_work_timer+0x3ac/0x520 [ 78.018155][ T4513] ? cancel_work_sync+0x20/0x20 [ 78.022997][ T4513] ? __cancel_work+0x1f4/0x2d0 [ 78.027746][ T4513] ? lockdep_hardirqs_on+0x94/0x140 [ 78.032930][ T4513] ? __cancel_work+0x26f/0x2d0 [ 78.037680][ T4513] ? cancel_work+0x20/0x20 [ 78.042084][ T4513] ? lock_chain_count+0x20/0x20 [ 78.046928][ T4513] hci_request_cancel_all+0xcc/0x300 [ 78.052202][ T4513] hci_dev_do_close+0x4e/0x1030 [ 78.057073][ T4513] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 78.062962][ T4513] ? _raw_spin_unlock+0x40/0x40 [ 78.067808][ T4513] ? mutex_is_locked+0xe/0x40 [ 78.072480][ T4513] hci_rfkill_set_block+0x10a/0x190 [ 78.077670][ T4513] ? rcu_lock_release+0x20/0x20 [ 78.082513][ T4513] rfkill_set_block+0x1c6/0x420 [ 78.087355][ T4513] rfkill_fop_write+0x458/0x560 [ 78.092196][ T4513] ? verify_lock_unused+0x140/0x140 [ 78.097385][ T4513] ? rfkill_fop_read+0x4b0/0x4b0 [ 78.102312][ T4513] ? common_file_perm+0xc0/0x1c0 [ 78.107238][ T4513] ? fsnotify_perm+0x5d/0x560 [ 78.111904][ T4513] ? security_file_permission+0x75/0xa0 [ 78.117522][ T4513] ? rfkill_fop_read+0x4b0/0x4b0 [ 78.122450][ T4513] vfs_write+0x300/0xd00 [ 78.126681][ T4513] ? file_end_write+0x250/0x250 [ 78.131536][ T4513] ? __context_tracking_exit+0x4c/0x80 [ 78.136983][ T4513] ? __lock_acquire+0x7c60/0x7c60 [ 78.142004][ T4513] ? __fdget_pos+0x1e2/0x370 [ 78.146581][ T4513] ksys_write+0x14d/0x250 [ 78.150900][ T4513] ? __ia32_sys_read+0x80/0x80 [ 78.155655][ T4513] ? lockdep_hardirqs_on+0x94/0x140 [ 78.160848][ T4513] do_syscall_64+0x4c/0xa0 [ 78.165255][ T4513] ? clear_bhb_loop+0x30/0x80 [ 78.169919][ T4513] ? clear_bhb_loop+0x30/0x80 [ 78.174586][ T4513] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.180493][ T4513] RIP: 0033:0x7f7f3f5f7ba9 [ 78.184906][ T4513] 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 [ 78.204496][ T4513] RSP: 002b:00007ffc5fd33658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.212898][ T4513] RAX: ffffffffffffffda RBX: 00007f7f3f83efa0 RCX: 00007f7f3f5f7ba9 [ 78.220859][ T4513] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 78.228828][ T4513] RBP: 00007f7f3f67ae19 R08: 0000000000000000 R09: 0000000000000000 [ 78.236790][ T4513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.244761][ T4513] R13: 00007f7f3f83efa0 R14: 00007f7f3f83efa0 R15: 0000000000000003 [ 78.252727][ T4513]