Warning: Permanently added '10.128.1.4' (ED25519) to the list of known hosts. 2025/08/15 16:06:07 ignoring optional flag "sandboxArg"="0" 2025/08/15 16:06:08 parsed 1 programs [ 55.164348][ T4186] cgroup: Unknown subsys name 'net' [ 55.298230][ T4186] cgroup: Unknown subsys name 'rlimit' [ 56.498969][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 58.141631][ T4218] chnl_net:caif_netlink_parms(): no params data found [ 58.182053][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.189703][ T4218] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.197593][ T4218] device bridge_slave_0 entered promiscuous mode [ 58.209010][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.216216][ T4218] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.224506][ T4218] device bridge_slave_1 entered promiscuous mode [ 58.243502][ T4218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.254768][ T4218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.277663][ T4218] team0: Port device team_slave_0 added [ 58.284676][ T4218] team0: Port device team_slave_1 added [ 58.300924][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.307954][ T4218] 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. [ 58.333902][ T4218] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.346525][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.353669][ T4218] 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. [ 58.379615][ T4218] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.407787][ T4218] device hsr_slave_0 entered promiscuous mode [ 58.414582][ T4218] device hsr_slave_1 entered promiscuous mode [ 58.518660][ T4218] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.529922][ T4218] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.540013][ T4218] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.549666][ T4218] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.580211][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.587440][ T4218] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.595398][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.602470][ T4218] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.660609][ T4218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.677807][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.690811][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.699271][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.713831][ T4218] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.726503][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.735487][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.742631][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.765777][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.776180][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.783294][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.795665][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.814199][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.822621][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.831957][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.847786][ T4218] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.859295][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.867748][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.979036][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.986799][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.001620][ T4218] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.022672][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.044932][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.055641][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.064050][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.072302][ T4218] device veth0_vlan entered promiscuous mode [ 59.085151][ T4218] device veth1_vlan entered promiscuous mode [ 59.093574][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.116427][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.126313][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.138626][ T4218] device veth0_macvtap entered promiscuous mode [ 59.149964][ T4218] device veth1_macvtap entered promiscuous mode [ 59.169172][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.178902][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.196822][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.207020][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.215796][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.229441][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.238425][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.249193][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.260388][ T4218] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.271487][ T4218] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.280635][ T4218] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.290807][ T4218] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.617883][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.656124][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.664324][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.680639][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.691153][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.699518][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.708420][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/15 16:06:15 executed programs: 0 [ 60.927100][ T4281] chnl_net:caif_netlink_parms(): no params data found [ 60.962008][ T4281] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.969164][ T4281] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.977009][ T4281] device bridge_slave_0 entered promiscuous mode [ 60.984949][ T4281] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.992013][ T4281] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.000208][ T4281] device bridge_slave_1 entered promiscuous mode [ 61.019066][ T4281] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.030461][ T4281] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.051003][ T4281] team0: Port device team_slave_0 added [ 61.058312][ T4281] team0: Port device team_slave_1 added [ 61.074325][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.081279][ T4281] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 61.107412][ T4281] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.122365][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.129463][ T4281] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 61.155559][ T4281] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.182141][ T4281] device hsr_slave_0 entered promiscuous mode [ 61.188926][ T4281] device hsr_slave_1 entered promiscuous mode [ 61.196008][ T4281] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.203794][ T4281] Cannot create hsr debugfs directory [ 62.289107][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.863904][ T4202] Bluetooth: hci0: command 0x0409 tx timeout [ 64.657854][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.700103][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.944551][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 65.491873][ T4281] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.501729][ T4281] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.510714][ T4281] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.527169][ T4281] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.569444][ T4281] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.590410][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.599039][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.609738][ T4281] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.635402][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.644169][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.652593][ T4249] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.659669][ T4249] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.668557][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.678102][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.686822][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.695523][ T4249] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.702643][ T4249] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.733834][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.742748][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.751995][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.761144][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.769986][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.781615][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.790556][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.814587][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.822996][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.835901][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.845318][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.854679][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.921797][ T9] device hsr_slave_0 left promiscuous mode [ 65.928590][ T9] device hsr_slave_1 left promiscuous mode [ 65.938048][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 65.946455][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 65.955425][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 65.962806][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 65.970604][ T9] device bridge_slave_1 left promiscuous mode [ 65.977409][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.989925][ T9] device bridge_slave_0 left promiscuous mode [ 65.997064][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.012040][ T9] device veth1_macvtap left promiscuous mode [ 66.018705][ T9] device veth0_macvtap left promiscuous mode [ 66.024891][ T9] device veth1_vlan left promiscuous mode [ 66.030779][ T9] device veth0_vlan left promiscuous mode [ 66.153337][ T9] team0 (unregistering): Port device team_slave_1 removed [ 66.166688][ T9] team0 (unregistering): Port device team_slave_0 removed [ 66.177954][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.192197][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.238700][ T9] bond0 (unregistering): Released all slaves [ 66.336695][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.344579][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.355500][ T4281] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.371418][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.380792][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.407651][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.416641][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.425972][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.434401][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.445609][ T4281] device veth0_vlan entered promiscuous mode [ 66.456388][ T4281] device veth1_vlan entered promiscuous mode [ 66.483230][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.496597][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.505547][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.514156][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.524085][ T4281] device veth0_macvtap entered promiscuous mode [ 66.532325][ T4281] device veth1_macvtap entered promiscuous mode [ 66.547476][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.555716][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.565087][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.574763][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.583724][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.595634][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.604921][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.613961][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.625211][ T4281] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.634382][ T4281] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.643703][ T4281] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.652514][ T4281] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.701329][ T1176] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.717110][ T1176] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.737641][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.751416][ T4249] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.760431][ T4249] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.771078][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.814553][ T4340] [ 66.816910][ T4340] ====================================================== [ 66.823917][ T4340] WARNING: possible circular locking dependency detected [ 66.830944][ T4340] 5.15.189-syzkaller #0 Not tainted [ 66.836139][ T4340] ------------------------------------------------------ [ 66.843144][ T4340] syz.0.17/4340 is trying to acquire lock: [ 66.848948][ T4340] ffff8880243f4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 66.860009][ T4340] [ 66.860009][ T4340] but task is already holding lock: [ 66.867372][ T4340] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 66.877032][ T4340] [ 66.877032][ T4340] which lock already depends on the new lock. [ 66.877032][ T4340] [ 66.887431][ T4340] [ 66.887431][ T4340] the existing dependency chain (in reverse order) is: [ 66.896435][ T4340] [ 66.896435][ T4340] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.904422][ T4340] __mutex_lock_common+0x1eb/0x2390 [ 66.910144][ T4340] mutex_lock_nested+0x17/0x20 [ 66.915438][ T4340] rfkill_register+0x33/0x8a0 [ 66.920730][ T4340] hci_register_dev+0x452/0x970 [ 66.926106][ T4340] vhci_create_device+0x32c/0x5c0 [ 66.931654][ T4340] vhci_write+0x391/0x450 [ 66.936497][ T4340] vfs_write+0x712/0xd00 [ 66.941255][ T4340] ksys_write+0x14d/0x250 [ 66.946097][ T4340] do_syscall_64+0x4c/0xa0 [ 66.951030][ T4340] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.957441][ T4340] [ 66.957441][ T4340] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.965267][ T4340] __mutex_lock_common+0x1eb/0x2390 [ 66.970996][ T4340] mutex_lock_nested+0x17/0x20 [ 66.976275][ T4340] vhci_send_frame+0x88/0x100 [ 66.981471][ T4340] hci_send_frame+0x1a9/0x2e0 [ 66.986677][ T4340] hci_tx_work+0x9f9/0x1710 [ 66.991699][ T4340] process_one_work+0x863/0x1000 [ 66.997153][ T4340] worker_thread+0xaa8/0x12a0 [ 67.002344][ T4340] kthread+0x436/0x520 [ 67.006926][ T4340] ret_from_fork+0x1f/0x30 [ 67.011860][ T4340] [ 67.011860][ T4340] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.021064][ T4340] __flush_work+0xdd/0x1b0 [ 67.025991][ T4340] hci_dev_do_close+0x1e7/0x1030 [ 67.031431][ T4340] hci_unregister_dev+0x2d7/0x580 [ 67.036957][ T4340] vhci_release+0x73/0xc0 [ 67.041791][ T4340] __fput+0x234/0x930 [ 67.046272][ T4340] task_work_run+0x125/0x1a0 [ 67.051362][ T4340] do_exit+0x61e/0x20a0 [ 67.056017][ T4340] do_group_exit+0x12e/0x300 [ 67.061108][ T4340] get_signal+0x6ca/0x12c0 [ 67.066023][ T4340] arch_do_signal_or_restart+0xc1/0x1300 [ 67.072157][ T4340] exit_to_user_mode_loop+0x9e/0x130 [ 67.077944][ T4340] exit_to_user_mode_prepare+0xb1/0x140 [ 67.083991][ T4340] syscall_exit_to_user_mode+0x16/0x40 [ 67.089950][ T4340] do_syscall_64+0x58/0xa0 [ 67.094868][ T4340] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.101270][ T4340] [ 67.101270][ T4340] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.108905][ T4340] __mutex_lock_common+0x1eb/0x2390 [ 67.114622][ T4340] mutex_lock_nested+0x17/0x20 [ 67.119892][ T4340] bg_scan_update+0x44/0x3b0 [ 67.124983][ T4340] process_one_work+0x863/0x1000 [ 67.130421][ T4340] worker_thread+0xaa8/0x12a0 [ 67.135619][ T4340] kthread+0x436/0x520 [ 67.140203][ T4340] ret_from_fork+0x1f/0x30 [ 67.145135][ T4340] [ 67.145135][ T4340] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.154940][ T4340] __lock_acquire+0x2c33/0x7c60 [ 67.160298][ T4340] lock_acquire+0x197/0x3f0 [ 67.165304][ T4340] __flush_work+0xdd/0x1b0 [ 67.170222][ T4340] __cancel_work_timer+0x3ac/0x520 [ 67.175833][ T4340] hci_request_cancel_all+0xcc/0x300 [ 67.181615][ T4340] hci_dev_do_close+0x4e/0x1030 [ 67.186962][ T4340] hci_rfkill_set_block+0x10a/0x190 [ 67.192661][ T4340] rfkill_set_block+0x1c6/0x420 [ 67.198008][ T4340] rfkill_fop_write+0x458/0x560 [ 67.203357][ T4340] vfs_write+0x300/0xd00 [ 67.208102][ T4340] ksys_write+0x14d/0x250 [ 67.212932][ T4340] do_syscall_64+0x4c/0xa0 [ 67.217848][ T4340] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.224242][ T4340] [ 67.224242][ T4340] other info that might help us debug this: [ 67.224242][ T4340] [ 67.234443][ T4340] Chain exists of: [ 67.234443][ T4340] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 67.234443][ T4340] [ 67.250141][ T4340] Possible unsafe locking scenario: [ 67.250141][ T4340] [ 67.257570][ T4340] CPU0 CPU1 [ 67.262918][ T4340] ---- ---- [ 67.268267][ T4340] lock(rfkill_global_mutex); [ 67.273008][ T4340] lock(&data->open_mutex); [ 67.280187][ T4340] lock(rfkill_global_mutex); [ 67.287565][ T4340] lock((work_completion)(&hdev->bg_scan_update)); [ 67.294130][ T4340] [ 67.294130][ T4340] *** DEADLOCK *** [ 67.294130][ T4340] [ 67.302251][ T4340] 1 lock held by syz.0.17/4340: [ 67.307080][ T4340] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.317158][ T4340] [ 67.317158][ T4340] stack backtrace: [ 67.323033][ T4340] CPU: 0 PID: 4340 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 67.330992][ T4340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 67.341037][ T4340] Call Trace: [ 67.344300][ T4340] [ 67.347214][ T4340] dump_stack_lvl+0x168/0x230 [ 67.351876][ T4340] ? load_image+0x3b0/0x3b0 [ 67.356363][ T4340] ? show_regs_print_info+0x20/0x20 [ 67.361543][ T4340] ? print_circular_bug+0x12b/0x1a0 [ 67.366722][ T4340] check_noncircular+0x274/0x310 [ 67.371642][ T4340] ? add_chain_block+0x940/0x940 [ 67.376648][ T4340] ? lockdep_lock+0xdc/0x1e0 [ 67.381223][ T4340] ? __lock_acquire+0x12d9/0x7c60 [ 67.386277][ T4340] ? lockdep_lock+0x1e0/0x1e0 [ 67.390934][ T4340] ? mark_lock+0x94/0x320 [ 67.395244][ T4340] __lock_acquire+0x2c33/0x7c60 [ 67.400089][ T4340] ? verify_lock_unused+0x140/0x140 [ 67.405354][ T4340] ? verify_lock_unused+0x140/0x140 [ 67.410534][ T4340] ? mark_lock+0x94/0x320 [ 67.414844][ T4340] ? __lock_acquire+0x13ad/0x7c60 [ 67.419852][ T4340] lock_acquire+0x197/0x3f0 [ 67.424339][ T4340] ? __flush_work+0xc1/0x1b0 [ 67.428913][ T4340] ? __lock_acquire+0x7c60/0x7c60 [ 67.433921][ T4340] ? read_lock_is_recursive+0x10/0x10 [ 67.439288][ T4340] ? start_flush_work+0x776/0x820 [ 67.444293][ T4340] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.450169][ T4340] ? _raw_spin_unlock+0x40/0x40 [ 67.455003][ T4340] __flush_work+0xdd/0x1b0 [ 67.459401][ T4340] ? __flush_work+0xc1/0x1b0 [ 67.463971][ T4340] ? flush_work+0x20/0x20 [ 67.468279][ T4340] ? try_to_grab_pending+0xf3/0x7e0 [ 67.473455][ T4340] ? lockdep_hardirqs_off+0x70/0x100 [ 67.478724][ T4340] ? mark_lock+0x94/0x320 [ 67.483039][ T4340] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 67.489006][ T4340] ? lock_chain_count+0x20/0x20 [ 67.493869][ T4340] ? mark_lock+0x94/0x320 [ 67.498186][ T4340] ? __cancel_work_timer+0x331/0x520 [ 67.503451][ T4340] __cancel_work_timer+0x3ac/0x520 [ 67.508544][ T4340] ? cancel_work_sync+0x20/0x20 [ 67.513375][ T4340] ? __cancel_work+0x1f4/0x2d0 [ 67.518118][ T4340] ? lockdep_hardirqs_on+0x94/0x140 [ 67.523383][ T4340] ? __cancel_work+0x26f/0x2d0 [ 67.528127][ T4340] ? cancel_work+0x20/0x20 [ 67.532528][ T4340] ? lock_chain_count+0x20/0x20 [ 67.537363][ T4340] hci_request_cancel_all+0xcc/0x300 [ 67.542631][ T4340] hci_dev_do_close+0x4e/0x1030 [ 67.547462][ T4340] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.553340][ T4340] ? _raw_spin_unlock+0x40/0x40 [ 67.558171][ T4340] hci_rfkill_set_block+0x10a/0x190 [ 67.563353][ T4340] ? rcu_lock_release+0x20/0x20 [ 67.568183][ T4340] rfkill_set_block+0x1c6/0x420 [ 67.573017][ T4340] rfkill_fop_write+0x458/0x560 [ 67.577850][ T4340] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.582779][ T4340] ? common_file_perm+0x150/0x1c0 [ 67.587783][ T4340] ? fsnotify_perm+0x5d/0x560 [ 67.592443][ T4340] ? security_file_permission+0x75/0xa0 [ 67.597968][ T4340] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.602890][ T4340] vfs_write+0x300/0xd00 [ 67.607124][ T4340] ? file_end_write+0x250/0x250 [ 67.611954][ T4340] ? __context_tracking_exit+0x4c/0x80 [ 67.617396][ T4340] ? __lock_acquire+0x7c60/0x7c60 [ 67.622404][ T4340] ? __fdget_pos+0x1e2/0x370 [ 67.626983][ T4340] ksys_write+0x14d/0x250 [ 67.631294][ T4340] ? __ia32_sys_read+0x80/0x80 [ 67.636037][ T4340] ? lockdep_hardirqs_on+0x94/0x140 [ 67.641214][ T4340] do_syscall_64+0x4c/0xa0 [ 67.645613][ T4340] ? clear_bhb_loop+0x30/0x80 [ 67.650269][ T4340] ? clear_bhb_loop+0x30/0x80 [ 67.654923][ T4340] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.660808][ T4340] RIP: 0033:0x7f354aac6be9 [ 67.665211][ T4340] 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 [ 67.684802][ T4340] RSP: 002b:00007ffd8feadc98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 67.693197][ T4340] RAX: ffffffffffffffda RBX: 00007f354acedfa0 RCX: 00007f354aac6be9 [ 67.701157][ T4340] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 67.709111][ T4340] RBP: 00007f354ab49e19 R08: 0000000000000000 R09: 0000000000000000 [ 67.717065][ T4340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 67.725015][ T4340] R13: 00007f354acedfa0 R14: 00007f354acedfa0 R15: 0000000000000003 [ 67.733071][ T4340] [ 67.740341][ T13] Bluetooth: hci0: command 0x040f tx timeout