Warning: Permanently added '10.128.1.123' (ED25519) to the list of known hosts. 2026/05/03 00:58:06 parsed 1 programs [ 69.361313][ T4200] cgroup: Unknown subsys name 'net' [ 69.504353][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.983625][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.371964][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.378587][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.419629][ T4248] chnl_net:caif_netlink_parms(): no params data found [ 73.485271][ T4248] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.493160][ T4248] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.502827][ T4248] device bridge_slave_0 entered promiscuous mode [ 73.514766][ T4248] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.523482][ T4248] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.531860][ T4248] device bridge_slave_1 entered promiscuous mode [ 73.560624][ T4248] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.573377][ T4248] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.603728][ T4248] team0: Port device team_slave_0 added [ 73.611952][ T4248] team0: Port device team_slave_1 added [ 73.636201][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.644580][ T4248] 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. [ 73.671876][ T4248] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.685200][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.693411][ T4248] 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. [ 73.720592][ T4248] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.763386][ T4248] device hsr_slave_0 entered promiscuous mode [ 73.770761][ T4248] device hsr_slave_1 entered promiscuous mode [ 73.917536][ T4248] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.931125][ T4248] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.943638][ T4248] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.955118][ T4248] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.988979][ T4248] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.996279][ T4248] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.004436][ T4248] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.011587][ T4248] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.075932][ T4248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.093982][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.107261][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.116937][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.125677][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.141642][ T4248] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.154527][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.163876][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.171114][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.192271][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.203418][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.210667][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.231875][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.249677][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.261068][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.270441][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.282985][ T4248] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.295118][ T4248] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.305371][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.431233][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.438928][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.451846][ T4248] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.474349][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.501337][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.534727][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.547534][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.563903][ T4248] device veth0_vlan entered promiscuous mode [ 74.571208][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.584486][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.599579][ T4248] device veth1_vlan entered promiscuous mode [ 74.627242][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.637496][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.646155][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.656508][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.669289][ T4248] device veth0_macvtap entered promiscuous mode [ 74.689922][ T4248] device veth1_macvtap entered promiscuous mode [ 74.705454][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.714862][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.724435][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.732796][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.742607][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.754367][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.762576][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.771838][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.783878][ T4248] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.793270][ T4248] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.803031][ T4248] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.812186][ T4248] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.795387][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.808166][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.822742][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.852696][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.861149][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.871309][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/03 00:58:16 executed programs: 0 [ 76.771655][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 76.835057][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.842423][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.850688][ T4299] device bridge_slave_0 entered promiscuous mode [ 76.859501][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.867012][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.875746][ T4299] device bridge_slave_1 entered promiscuous mode [ 76.900758][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.912322][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.938512][ T4299] team0: Port device team_slave_0 added [ 76.946521][ T4299] team0: Port device team_slave_1 added [ 76.967623][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.974890][ T4299] 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. [ 77.001015][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.013530][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.020638][ T4299] 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. [ 77.047880][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.085706][ T4299] device hsr_slave_0 entered promiscuous mode [ 77.092688][ T4299] device hsr_slave_1 entered promiscuous mode [ 77.099701][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.107604][ T4299] Cannot create hsr debugfs directory [ 77.188679][ T4299] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.718482][ T1109] Bluetooth: hci0: command 0x0409 tx timeout [ 79.904625][ T4299] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.946667][ T4299] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.043735][ T4299] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.196626][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.207598][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.231609][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.241236][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.313839][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.349487][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.357315][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.368752][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.381095][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.390309][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.400519][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.407602][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.416358][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.446239][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.455844][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.464440][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.472023][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.484910][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.504444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.514392][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.523516][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.532545][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.541697][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.550699][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.560887][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.569623][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.580533][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.589253][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.616799][ T4299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.733756][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.741936][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.749957][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.777136][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.786699][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.799299][ T1106] Bluetooth: hci0: command 0x041b tx timeout [ 80.821403][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.831770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.841273][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.849231][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.859298][ T4299] device veth0_vlan entered promiscuous mode [ 80.871157][ T4299] device veth1_vlan entered promiscuous mode [ 80.896181][ T154] device hsr_slave_0 left promiscuous mode [ 80.902706][ T154] device hsr_slave_1 left promiscuous mode [ 80.911193][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.918810][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.927398][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.936128][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.944004][ T154] device bridge_slave_1 left promiscuous mode [ 80.951427][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.967106][ T154] device bridge_slave_0 left promiscuous mode [ 80.974059][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.992821][ T154] device veth1_macvtap left promiscuous mode [ 80.999218][ T154] device veth0_macvtap left promiscuous mode [ 81.005279][ T154] device veth1_vlan left promiscuous mode [ 81.011659][ T154] device veth0_vlan left promiscuous mode [ 81.193445][ T154] team0 (unregistering): Port device team_slave_1 removed [ 81.208722][ T154] team0 (unregistering): Port device team_slave_0 removed [ 81.225234][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.240589][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.302198][ T154] bond0 (unregistering): Released all slaves [ 81.357333][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.365706][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.374556][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.383558][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.396101][ T4299] device veth0_macvtap entered promiscuous mode [ 81.411574][ T4299] device veth1_macvtap entered promiscuous mode [ 81.430501][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.442343][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.451778][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.460987][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.471792][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.479937][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.489464][ T1373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.501409][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.510430][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.519856][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.530323][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.595212][ T1373] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.617962][ T1373] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.643022][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.669364][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.677240][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.686960][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.930335][ T4315] [ 81.932729][ T4315] ====================================================== [ 81.939771][ T4315] WARNING: possible circular locking dependency detected [ 81.946836][ T4315] syzkaller #0 Not tainted [ 81.951279][ T4315] ------------------------------------------------------ [ 81.958409][ T4315] syz.0.17/4315 is trying to acquire lock: [ 81.964239][ T4315] ffff888077b68c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.975354][ T4315] [ 81.975354][ T4315] but task is already holding lock: [ 81.982745][ T4315] ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.992447][ T4315] [ 81.992447][ T4315] which lock already depends on the new lock. [ 81.992447][ T4315] [ 82.002874][ T4315] [ 82.002874][ T4315] the existing dependency chain (in reverse order) is: [ 82.011913][ T4315] [ 82.011913][ T4315] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.019949][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 82.025713][ T4315] mutex_lock_nested+0x17/0x20 [ 82.031036][ T4315] rfkill_register+0x33/0x980 [ 82.036265][ T4315] hci_register_dev+0x452/0x970 [ 82.041664][ T4315] vhci_create_device+0x32c/0x5c0 [ 82.047243][ T4315] vhci_write+0x391/0x450 [ 82.052117][ T4315] vfs_write+0x745/0xd60 [ 82.056899][ T4315] ksys_write+0x152/0x260 [ 82.061776][ T4315] do_syscall_64+0x4c/0xa0 [ 82.066733][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.073176][ T4315] [ 82.073176][ T4315] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.081030][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 82.086788][ T4315] mutex_lock_nested+0x17/0x20 [ 82.092109][ T4315] vhci_send_frame+0x88/0x100 [ 82.097345][ T4315] hci_send_frame+0x1a9/0x2e0 [ 82.102586][ T4315] hci_tx_work+0x9f9/0x1710 [ 82.107639][ T4315] process_one_work+0x85f/0x1010 [ 82.113122][ T4315] worker_thread+0xaa6/0x1290 [ 82.118350][ T4315] kthread+0x436/0x520 [ 82.122963][ T4315] ret_from_fork+0x1f/0x30 [ 82.127955][ T4315] [ 82.127955][ T4315] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.137288][ T4315] __flush_work+0x116/0x210 [ 82.142342][ T4315] hci_dev_do_close+0x1e7/0x1030 [ 82.147832][ T4315] hci_unregister_dev+0x2d7/0x580 [ 82.153418][ T4315] vhci_release+0x73/0xc0 [ 82.158303][ T4315] __fput+0x234/0x930 [ 82.162837][ T4315] task_work_run+0x125/0x1a0 [ 82.167984][ T4315] do_exit+0x626/0x20c0 [ 82.172684][ T4315] do_group_exit+0x12e/0x300 [ 82.177829][ T4315] get_signal+0x6ca/0x12c0 [ 82.182793][ T4315] arch_do_signal_or_restart+0xe7/0x12c0 [ 82.188986][ T4315] exit_to_user_mode_loop+0x9e/0x130 [ 82.194825][ T4315] exit_to_user_mode_prepare+0xee/0x180 [ 82.200930][ T4315] syscall_exit_to_user_mode+0x16/0x40 [ 82.206955][ T4315] do_syscall_64+0x58/0xa0 [ 82.211930][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.218389][ T4315] [ 82.218389][ T4315] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.226077][ T4315] __mutex_lock_common+0x1e3/0x2400 [ 82.231833][ T4315] mutex_lock_nested+0x17/0x20 [ 82.237167][ T4315] bg_scan_update+0x44/0x3b0 [ 82.242324][ T4315] process_one_work+0x85f/0x1010 [ 82.247832][ T4315] worker_thread+0xaa6/0x1290 [ 82.253427][ T4315] kthread+0x436/0x520 [ 82.258050][ T4315] ret_from_fork+0x1f/0x30 [ 82.263050][ T4315] [ 82.263050][ T4315] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.272926][ T4315] __lock_acquire+0x2c42/0x7d10 [ 82.278356][ T4315] lock_acquire+0x19e/0x400 [ 82.283413][ T4315] __flush_work+0x116/0x210 [ 82.288461][ T4315] __cancel_work_timer+0x3f4/0x560 [ 82.294122][ T4315] hci_request_cancel_all+0xcc/0x300 [ 82.299975][ T4315] hci_dev_do_close+0x4e/0x1030 [ 82.305392][ T4315] hci_rfkill_set_block+0x10a/0x190 [ 82.311150][ T4315] rfkill_set_block+0x1c9/0x3d0 [ 82.316563][ T4315] rfkill_fop_write+0x452/0x560 [ 82.321952][ T4315] vfs_write+0x30b/0xd60 [ 82.326752][ T4315] ksys_write+0x152/0x260 [ 82.331633][ T4315] do_syscall_64+0x4c/0xa0 [ 82.336604][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.343051][ T4315] [ 82.343051][ T4315] other info that might help us debug this: [ 82.343051][ T4315] [ 82.353302][ T4315] Chain exists of: [ 82.353302][ T4315] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.353302][ T4315] [ 82.369073][ T4315] Possible unsafe locking scenario: [ 82.369073][ T4315] [ 82.376553][ T4315] CPU0 CPU1 [ 82.381957][ T4315] ---- ---- [ 82.387345][ T4315] lock(rfkill_global_mutex); [ 82.392152][ T4315] lock(&data->open_mutex); [ 82.399300][ T4315] lock(rfkill_global_mutex); [ 82.406611][ T4315] lock((work_completion)(&hdev->bg_scan_update)); [ 82.413322][ T4315] [ 82.413322][ T4315] *** DEADLOCK *** [ 82.413322][ T4315] [ 82.421492][ T4315] 1 lock held by syz.0.17/4315: [ 82.426473][ T4315] #0: ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.436614][ T4315] [ 82.436614][ T4315] stack backtrace: [ 82.442570][ T4315] CPU: 0 PID: 4315 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.449800][ T4315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.459896][ T4315] Call Trace: [ 82.463236][ T4315] [ 82.466207][ T4315] dump_stack_lvl+0x188/0x250 [ 82.470912][ T4315] ? load_image+0x400/0x400 [ 82.475451][ T4315] ? show_regs_print_info+0x20/0x20 [ 82.480686][ T4315] ? print_circular_bug+0x12b/0x1a0 [ 82.486005][ T4315] check_noncircular+0x296/0x330 [ 82.490975][ T4315] ? look_up_lock_class+0x71/0x110 [ 82.496130][ T4315] ? add_chain_block+0x940/0x940 [ 82.501104][ T4315] ? lockdep_lock+0xf1/0x1f0 [ 82.505736][ T4315] ? __lock_acquire+0x12e8/0x7d10 [ 82.510823][ T4315] ? mark_lock+0x94/0x320 [ 82.515182][ T4315] __lock_acquire+0x2c42/0x7d10 [ 82.520081][ T4315] ? verify_lock_unused+0x140/0x140 [ 82.525324][ T4315] ? verify_lock_unused+0x140/0x140 [ 82.530548][ T4315] ? mark_lock+0x94/0x320 [ 82.534914][ T4315] lock_acquire+0x19e/0x400 [ 82.539451][ T4315] ? __flush_work+0xfa/0x210 [ 82.544099][ T4315] ? __lock_acquire+0x7d10/0x7d10 [ 82.549176][ T4315] ? read_lock_is_recursive+0x10/0x10 [ 82.554596][ T4315] ? start_flush_work+0x776/0x820 [ 82.559666][ T4315] __flush_work+0x116/0x210 [ 82.564210][ T4315] ? __flush_work+0xfa/0x210 [ 82.568835][ T4315] ? flush_work+0x20/0x20 [ 82.573199][ T4315] ? try_to_grab_pending+0xfa/0x7f0 [ 82.578427][ T4315] ? mark_lock+0x94/0x320 [ 82.582791][ T4315] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 82.588896][ T4315] ? lock_chain_count+0x20/0x20 [ 82.593779][ T4315] ? mark_lock+0x94/0x320 [ 82.598152][ T4315] ? __cancel_work_timer+0x36a/0x560 [ 82.603469][ T4315] __cancel_work_timer+0x3f4/0x560 [ 82.608606][ T4315] ? cancel_work_sync+0x20/0x20 [ 82.613476][ T4315] ? __cancel_work+0x1f9/0x2e0 [ 82.618261][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 82.623541][ T4315] ? __cancel_work+0x27b/0x2e0 [ 82.628343][ T4315] ? cancel_work+0x20/0x20 [ 82.632785][ T4315] ? lock_chain_count+0x20/0x20 [ 82.637670][ T4315] hci_request_cancel_all+0xcc/0x300 [ 82.642987][ T4315] hci_dev_do_close+0x4e/0x1030 [ 82.647903][ T4315] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.653835][ T4315] ? _raw_spin_unlock+0x40/0x40 [ 82.658726][ T4315] hci_rfkill_set_block+0x10a/0x190 [ 82.664041][ T4315] ? rcu_lock_release+0x20/0x20 [ 82.668950][ T4315] rfkill_set_block+0x1c9/0x3d0 [ 82.673837][ T4315] rfkill_fop_write+0x452/0x560 [ 82.678743][ T4315] ? rfkill_fop_read+0x520/0x520 [ 82.683703][ T4315] ? common_file_perm+0x140/0x1c0 [ 82.688780][ T4315] ? fsnotify_perm+0x5d/0x560 [ 82.693498][ T4315] ? security_file_permission+0x75/0xa0 [ 82.699072][ T4315] ? rfkill_fop_read+0x520/0x520 [ 82.704044][ T4315] vfs_write+0x30b/0xd60 [ 82.708325][ T4315] ? file_end_write+0x250/0x250 [ 82.713212][ T4315] ? __context_tracking_exit+0x4c/0x80 [ 82.718717][ T4315] ? __lock_acquire+0x7d10/0x7d10 [ 82.723772][ T4315] ? __fdget_pos+0x1e2/0x370 [ 82.728393][ T4315] ksys_write+0x152/0x260 [ 82.732776][ T4315] ? __ia32_sys_read+0x80/0x80 [ 82.737575][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 82.742815][ T4315] do_syscall_64+0x4c/0xa0 [ 82.747264][ T4315] ? clear_bhb_loop+0x30/0x80 [ 82.751971][ T4315] ? clear_bhb_loop+0x30/0x80 [ 82.756679][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.762614][ T4315] RIP: 0033:0x7f223bb77dd9 [ 82.767070][ T4315] 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 [ 82.786710][ T4315] RSP: 002b:00007fff2dc14fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.795165][ T4315] RAX: ffffffffffffffda RBX: 00007f223bdf0fa0 RCX: 00007f223bb77dd9 [ 82.803218][ T4315] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 82.811263][ T4315] RBP: 00007f223bc0dd69 R08: 0000000000000000 R09: 0000000000000000 [ 82.819262][ T4315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.827256][ T4315] R13: 00007f223bdf0fac R14: 00007f223bdf0fa0 R15: 00007f223bdf0fa0 [ 82.835276][ T4315] [ 82.878137][ T4306] Bluetooth: hci0: command 0x040f tx timeout