Warning: Permanently added '10.128.1.138' (ED25519) to the list of known hosts. 2026/07/20 08:54:11 parsed 1 programs 2026/07/20 08:54:11 serving rpc on tcp://35855 [ 72.484641][ T4196] cgroup: Unknown subsys name 'net' [ 72.620989][ T4196] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.107638][ T4196] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.126020][ T4230] chnl_net:caif_netlink_parms(): no params data found [ 76.180679][ T4230] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.188523][ T4230] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.197370][ T4230] device bridge_slave_0 entered promiscuous mode [ 76.207549][ T4230] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.215273][ T4230] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.223499][ T4230] device bridge_slave_1 entered promiscuous mode [ 76.250154][ T4230] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.262379][ T4230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.290363][ T4230] team0: Port device team_slave_0 added [ 76.298581][ T4230] team0: Port device team_slave_1 added [ 76.320968][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.328120][ T4230] 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. [ 76.354786][ T4230] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.368333][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.375661][ T4230] 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. [ 76.401990][ T4230] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.444621][ T4230] device hsr_slave_0 entered promiscuous mode [ 76.452013][ T4230] device hsr_slave_1 entered promiscuous mode [ 76.598860][ T4230] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.611107][ T4230] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.623581][ T4230] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.634937][ T4230] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.668155][ T4230] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.675470][ T4230] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.683482][ T4230] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.690649][ T4230] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.756987][ T4230] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.777116][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.789269][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.801260][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.816836][ T4230] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.829513][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.838794][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.845939][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.866676][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.876484][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.883575][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.907410][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.918158][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.929070][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.943436][ T4230] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.956549][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.965881][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.976074][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.115984][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.124758][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.138953][ T4230] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.163356][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.186886][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.208791][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.219790][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.231639][ T4230] device veth0_vlan entered promiscuous mode [ 77.242424][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.251275][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.268561][ T4230] device veth1_vlan entered promiscuous mode [ 77.296933][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.306619][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.317349][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.326263][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.339521][ T4230] device veth0_macvtap entered promiscuous mode [ 77.350783][ T4230] device veth1_macvtap entered promiscuous mode [ 77.373158][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.382968][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.392525][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.401949][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.419277][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.432176][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.441725][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.451158][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.462927][ T4230] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.472982][ T4230] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.482450][ T4230] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.494656][ T4230] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.768801][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.960968][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.975243][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.997310][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.013964][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.021842][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.031068][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/20 08:54:21 executed programs: 0 [ 79.606495][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 79.653351][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.660697][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.669880][ T4290] device bridge_slave_0 entered promiscuous mode [ 79.678150][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.685341][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.693260][ T4290] device bridge_slave_1 entered promiscuous mode [ 79.715257][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.727108][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.750203][ T4290] team0: Port device team_slave_0 added [ 79.757954][ T4290] team0: Port device team_slave_1 added [ 79.776815][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.783825][ T4290] 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. [ 79.810207][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.823146][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.830431][ T4290] 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. [ 79.856499][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.887920][ T4290] device hsr_slave_0 entered promiscuous mode [ 79.895186][ T4290] device hsr_slave_1 entered promiscuous mode [ 79.902183][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.910620][ T4290] Cannot create hsr debugfs directory [ 79.933554][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.574886][ T4267] Bluetooth: hci0: command 0x0409 tx timeout [ 82.290394][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.332819][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.112636][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.124684][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.136765][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.157815][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.222252][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.236373][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.245127][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.262653][ T9] device hsr_slave_0 left promiscuous mode [ 83.270174][ T9] device hsr_slave_1 left promiscuous mode [ 83.277585][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.285766][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.295443][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.302870][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.310966][ T9] device bridge_slave_1 left promiscuous mode [ 83.318811][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.332639][ T9] device bridge_slave_0 left promiscuous mode [ 83.339064][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.357755][ T9] device veth1_macvtap left promiscuous mode [ 83.365763][ T9] device veth0_macvtap left promiscuous mode [ 83.371867][ T9] device veth1_vlan left promiscuous mode [ 83.377974][ T9] device veth0_vlan left promiscuous mode [ 83.541802][ T9] team0 (unregistering): Port device team_slave_1 removed [ 83.559075][ T9] team0 (unregistering): Port device team_slave_0 removed [ 83.572915][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.589264][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.645819][ T1109] Bluetooth: hci0: command 0x041b tx timeout [ 83.655476][ T9] bond0 (unregistering): Released all slaves [ 83.708559][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.721229][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.730359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.740489][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.747731][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.756876][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.769477][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.778653][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.787342][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.794461][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.809473][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.822207][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.855218][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.865453][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.874338][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.882947][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.892383][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.902822][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.911918][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.924561][ T4290] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.936421][ T4290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.946097][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.960004][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.065493][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.073282][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.087874][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.109690][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.118736][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.139223][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.148702][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.157994][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.166261][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.177960][ T4290] device veth0_vlan entered promiscuous mode [ 84.197173][ T4290] device veth1_vlan entered promiscuous mode [ 84.221507][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.234820][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.243178][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.255520][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.267650][ T4290] device veth0_macvtap entered promiscuous mode [ 84.276711][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.288569][ T4290] device veth1_macvtap entered promiscuous mode [ 84.308999][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.318317][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.328586][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.340880][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.348802][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.358448][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.370631][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.380810][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.391577][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.401219][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.483484][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.501382][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.509938][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.534688][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.542710][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.553055][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.749934][ T4329] [ 84.752324][ T4329] ====================================================== [ 84.759380][ T4329] WARNING: possible circular locking dependency detected [ 84.766438][ T4329] syzkaller #0 Not tainted [ 84.770881][ T4329] ------------------------------------------------------ [ 84.777930][ T4329] syz.0.17/4329 is trying to acquire lock: [ 84.783874][ T4329] ffff88807d171028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 84.794984][ T4329] [ 84.794984][ T4329] but task is already holding lock: [ 84.802388][ T4329] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 84.812302][ T4329] [ 84.812302][ T4329] which lock already depends on the new lock. [ 84.812302][ T4329] [ 84.822745][ T4329] [ 84.822745][ T4329] the existing dependency chain (in reverse order) is: [ 84.832778][ T4329] [ 84.832778][ T4329] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.840927][ T4329] __mutex_lock_common+0x1e5/0x2400 [ 84.846878][ T4329] mutex_lock_nested+0x17/0x20 [ 84.852208][ T4329] rfkill_register+0x2f/0x970 [ 84.857446][ T4329] hci_register_dev+0x459/0x980 [ 84.862850][ T4329] vhci_create_device+0x32e/0x5c0 [ 84.868445][ T4329] vhci_write+0x389/0x440 [ 84.873340][ T4329] vfs_write+0x748/0xd70 [ 84.878164][ T4329] ksys_write+0x153/0x260 [ 84.883053][ T4329] do_syscall_64+0x4c/0xa0 [ 84.888030][ T4329] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.894524][ T4329] [ 84.894524][ T4329] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.902474][ T4329] __mutex_lock_common+0x1e5/0x2400 [ 84.908404][ T4329] mutex_lock_nested+0x17/0x20 [ 84.913725][ T4329] vhci_send_frame+0x88/0x100 [ 84.919093][ T4329] hci_send_frame+0x1a9/0x2e0 [ 84.924498][ T4329] hci_tx_work+0x9b5/0x16d0 [ 84.929554][ T4329] process_one_work+0x867/0xff0 [ 84.934963][ T4329] worker_thread+0xad7/0x12a0 [ 84.940201][ T4329] kthread+0x42e/0x520 [ 84.944945][ T4329] ret_from_fork+0x1f/0x30 [ 84.950003][ T4329] [ 84.950003][ T4329] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.959251][ T4329] __flush_work+0x116/0x210 [ 84.964394][ T4329] hci_dev_do_close+0x201/0x1020 [ 84.969969][ T4329] hci_unregister_dev+0x2eb/0x590 [ 84.975554][ T4329] vhci_release+0x73/0xc0 [ 84.980436][ T4329] __fput+0x212/0x8c0 [ 84.984975][ T4329] task_work_run+0x125/0x1a0 [ 84.990130][ T4329] do_exit+0x635/0x2110 [ 84.994843][ T4329] do_group_exit+0x12c/0x2f0 [ 85.000074][ T4329] get_signal+0x7eb/0x12e0 [ 85.005095][ T4329] arch_do_signal_or_restart+0xe6/0x12a0 [ 85.011292][ T4329] exit_to_user_mode_loop+0x9e/0x130 [ 85.017669][ T4329] exit_to_user_mode_prepare+0xee/0x180 [ 85.023777][ T4329] syscall_exit_to_user_mode+0x16/0x40 [ 85.029882][ T4329] do_syscall_64+0x58/0xa0 [ 85.034853][ T4329] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.041303][ T4329] [ 85.041303][ T4329] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.048985][ T4329] __mutex_lock_common+0x1e5/0x2400 [ 85.055014][ T4329] mutex_lock_nested+0x17/0x20 [ 85.060360][ T4329] bg_scan_update+0x44/0x3b0 [ 85.065511][ T4329] process_one_work+0x867/0xff0 [ 85.070919][ T4329] worker_thread+0xad7/0x12a0 [ 85.076155][ T4329] kthread+0x42e/0x520 [ 85.080781][ T4329] ret_from_fork+0x1f/0x30 [ 85.085750][ T4329] [ 85.085750][ T4329] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.095684][ T4329] __lock_acquire+0x2c66/0x7b50 [ 85.101101][ T4329] lock_acquire+0x19e/0x400 [ 85.106712][ T4329] __flush_work+0x116/0x210 [ 85.111860][ T4329] __cancel_work_timer+0x3f4/0x560 [ 85.117823][ T4329] hci_request_cancel_all+0xcc/0x300 [ 85.123819][ T4329] hci_dev_do_close+0x4e/0x1020 [ 85.129238][ T4329] hci_rfkill_set_block+0x101/0x180 [ 85.134999][ T4329] rfkill_set_block+0x1c1/0x3c0 [ 85.140409][ T4329] rfkill_fop_write+0x453/0x560 [ 85.145824][ T4329] vfs_write+0x304/0xd70 [ 85.151110][ T4329] ksys_write+0x153/0x260 [ 85.156089][ T4329] do_syscall_64+0x4c/0xa0 [ 85.161061][ T4329] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.167516][ T4329] [ 85.167516][ T4329] other info that might help us debug this: [ 85.167516][ T4329] [ 85.177787][ T4329] Chain exists of: [ 85.177787][ T4329] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 85.177787][ T4329] [ 85.193560][ T4329] Possible unsafe locking scenario: [ 85.193560][ T4329] [ 85.201035][ T4329] CPU0 CPU1 [ 85.206546][ T4329] ---- ---- [ 85.211943][ T4329] lock(rfkill_global_mutex); [ 85.216857][ T4329] lock(&data->open_mutex); [ 85.224007][ T4329] lock(rfkill_global_mutex); [ 85.231359][ T4329] lock((work_completion)(&hdev->bg_scan_update)); [ 85.238074][ T4329] [ 85.238074][ T4329] *** DEADLOCK *** [ 85.238074][ T4329] [ 85.246249][ T4329] 1 lock held by syz.0.17/4329: [ 85.251293][ T4329] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 85.261439][ T4329] [ 85.261439][ T4329] stack backtrace: [ 85.267364][ T4329] CPU: 0 PID: 4329 Comm: syz.0.17 Not tainted syzkaller #0 [ 85.274595][ T4329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 85.284692][ T4329] Call Trace: [ 85.288017][ T4329] [ 85.290983][ T4329] dump_stack_lvl+0x188/0x250 [ 85.295700][ T4329] ? load_image+0x410/0x410 [ 85.300240][ T4329] ? show_regs_print_info+0x20/0x20 [ 85.305521][ T4329] ? print_circular_bug+0x12b/0x1a0 [ 85.310763][ T4329] check_noncircular+0x296/0x330 [ 85.315749][ T4329] ? look_up_lock_class+0x71/0x110 [ 85.320899][ T4329] ? add_chain_block+0x9b0/0x9b0 [ 85.325890][ T4329] ? lockdep_lock+0xf1/0x1f0 [ 85.330527][ T4329] ? __lock_acquire+0x1305/0x7b50 [ 85.335592][ T4329] ? mark_lock+0x94/0x320 [ 85.339951][ T4329] ? _find_first_zero_bit+0xd1/0xf0 [ 85.345188][ T4329] __lock_acquire+0x2c66/0x7b50 [ 85.350083][ T4329] ? verify_lock_unused+0x140/0x140 [ 85.355327][ T4329] ? verify_lock_unused+0x140/0x140 [ 85.360581][ T4329] lock_acquire+0x19e/0x400 [ 85.365134][ T4329] ? __flush_work+0xfa/0x210 [ 85.369758][ T4329] ? __lock_acquire+0x7b50/0x7b50 [ 85.374830][ T4329] ? read_lock_is_recursive+0x10/0x10 [ 85.380271][ T4329] ? start_flush_work+0x784/0x830 [ 85.385338][ T4329] __flush_work+0x116/0x210 [ 85.389879][ T4329] ? __flush_work+0xfa/0x210 [ 85.394510][ T4329] ? flush_work+0x20/0x20 [ 85.398877][ T4329] ? try_to_grab_pending+0xfb/0x820 [ 85.404113][ T4329] ? mark_lock+0x94/0x320 [ 85.408562][ T4329] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 85.414591][ T4329] ? lock_chain_count+0x20/0x20 [ 85.419484][ T4329] ? mark_lock+0x94/0x320 [ 85.424080][ T4329] ? __cancel_work_timer+0x36a/0x560 [ 85.429400][ T4329] __cancel_work_timer+0x3f4/0x560 [ 85.434550][ T4329] ? cancel_work_sync+0x20/0x20 [ 85.439434][ T4329] ? __cancel_work+0x1f9/0x2e0 [ 85.444230][ T4329] ? lockdep_hardirqs_on+0x94/0x140 [ 85.449463][ T4329] ? __cancel_work+0x27b/0x2e0 [ 85.454260][ T4329] ? cancel_work+0x20/0x20 [ 85.458715][ T4329] hci_request_cancel_all+0xcc/0x300 [ 85.464059][ T4329] hci_dev_do_close+0x4e/0x1020 [ 85.468944][ T4329] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 85.474975][ T4329] ? _raw_spin_unlock+0x40/0x40 [ 85.479889][ T4329] hci_rfkill_set_block+0x101/0x180 [ 85.485305][ T4329] ? rcu_lock_release+0x20/0x20 [ 85.490374][ T4329] rfkill_set_block+0x1c1/0x3c0 [ 85.495290][ T4329] rfkill_fop_write+0x453/0x560 [ 85.500271][ T4329] ? rfkill_fop_read+0x560/0x560 [ 85.505256][ T4329] ? common_file_perm+0xf0/0x1c0 [ 85.510244][ T4329] ? fsnotify_perm+0x5d/0x560 [ 85.514963][ T4329] ? security_file_permission+0x75/0xa0 [ 85.520552][ T4329] ? rfkill_fop_read+0x560/0x560 [ 85.525528][ T4329] vfs_write+0x304/0xd70 [ 85.529811][ T4329] ? file_end_write+0x250/0x250 [ 85.534802][ T4329] ? __context_tracking_exit+0x4c/0x80 [ 85.540304][ T4329] ? __fdget_pos+0x1e2/0x370 [ 85.544944][ T4329] ksys_write+0x153/0x260 [ 85.549316][ T4329] ? __ia32_sys_read+0x80/0x80 [ 85.554350][ T4329] ? lockdep_hardirqs_on+0x94/0x140 [ 85.559593][ T4329] do_syscall_64+0x4c/0xa0 [ 85.564044][ T4329] ? clear_bhb_loop+0x30/0x80 [ 85.568775][ T4329] ? clear_bhb_loop+0x30/0x80 [ 85.573929][ T4329] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.579879][ T4329] RIP: 0033:0x7fecf954ae99 [ 85.584337][ T4329] 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 [ 85.603983][ T4329] RSP: 002b:00007ffc6547a608 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.612442][ T4329] RAX: ffffffffffffffda RBX: 00007fecf97d2fa0 RCX: 00007fecf954ae99 [ 85.620455][ T4329] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 85.628459][ T4329] RBP: 00007fecf95e0eaf R08: 0000000000000000 R09: 0000000000000000 [ 85.636470][ T4329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.644475][ T4329] R13: 00007fecf97d2fac R14: 00007fecf97d2fa0 R15: 00007fecf97d2fa0 [ 85.652498][ T4329]