Warning: Permanently added '10.128.1.44' (ED25519) to the list of known hosts. 2026/04/11 10:43:17 parsed 1 programs [ 69.872958][ T4188] cgroup: Unknown subsys name 'net' [ 69.988894][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.444947][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.476736][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.483323][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.896882][ T1282] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.911914][ T1282] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.939794][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.958934][ T1282] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.968008][ T1282] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.976235][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.438035][ T4270] chnl_net:caif_netlink_parms(): no params data found [ 75.486564][ T4270] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.494369][ T4270] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.502496][ T4270] device bridge_slave_0 entered promiscuous mode [ 75.511625][ T4270] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.518908][ T4270] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.526768][ T4270] device bridge_slave_1 entered promiscuous mode [ 75.548943][ T4270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.560259][ T4270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.583566][ T4270] team0: Port device team_slave_0 added [ 75.591487][ T4270] team0: Port device team_slave_1 added [ 75.609627][ T4270] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.616645][ T4270] 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. [ 75.642847][ T4270] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.655982][ T4270] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.663108][ T4270] 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. [ 75.689561][ T4270] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.743540][ T4270] device hsr_slave_0 entered promiscuous mode [ 75.750350][ T4270] device hsr_slave_1 entered promiscuous mode [ 75.893086][ T4270] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.905898][ T4270] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.915268][ T4270] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.946021][ T4270] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.970912][ T4270] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.978170][ T4270] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.986403][ T4270] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.993567][ T4270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.057009][ T4270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.093816][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.103358][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.111538][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.125246][ T4270] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.160056][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.169158][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.176351][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.187546][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.196408][ T3061] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.203571][ T3061] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.238670][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.247869][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.260017][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.273760][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.300407][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.311595][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.430832][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.439612][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.462922][ T4270] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.500311][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.509745][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.544486][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.556534][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.568141][ T4270] device veth0_vlan entered promiscuous mode [ 76.579236][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.588605][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.605670][ T4270] device veth1_vlan entered promiscuous mode [ 76.630060][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.638523][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.647693][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.656865][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.668858][ T4270] device veth0_macvtap entered promiscuous mode [ 76.680082][ T4270] device veth1_macvtap entered promiscuous mode [ 76.698169][ T4270] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.706590][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.716044][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.724811][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.735211][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.748583][ T4270] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.756621][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.774969][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.789793][ T4270] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.799100][ T4270] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.808450][ T4270] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.817493][ T4270] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/11 10:43:27 executed programs: 0 [ 77.970058][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 78.021888][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.029655][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.038169][ T4293] device bridge_slave_0 entered promiscuous mode [ 78.053187][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.060368][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.071466][ T4293] device bridge_slave_1 entered promiscuous mode [ 78.095555][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.108995][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.149338][ T4293] team0: Port device team_slave_0 added [ 78.157550][ T4293] team0: Port device team_slave_1 added [ 78.179191][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.187037][ T4293] 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. [ 78.213291][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.226205][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.233435][ T4293] 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. [ 78.259807][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.298644][ T4293] device hsr_slave_0 entered promiscuous mode [ 78.305719][ T4293] device hsr_slave_1 entered promiscuous mode [ 78.312906][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 78.320857][ T4293] Cannot create hsr debugfs directory [ 78.411116][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.883821][ T4264] Bluetooth: hci0: command 0x0409 tx timeout [ 81.509816][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.952957][ T23] Bluetooth: hci0: command 0x041b tx timeout [ 82.078500][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.150546][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.960520][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.970921][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.980228][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.008229][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.075643][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.089492][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.097624][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.108460][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.118271][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.128901][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.137557][ T1282] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.144663][ T1282] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.158113][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.166254][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.175294][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.184352][ T1282] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.191580][ T1282] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.203174][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.215892][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.239097][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.248337][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.258263][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.276608][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.286172][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.296035][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.305334][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.327614][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.336218][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.347576][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.371456][ T144] device hsr_slave_0 left promiscuous mode [ 83.380703][ T144] device hsr_slave_1 left promiscuous mode [ 83.389779][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.398195][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.407290][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.415050][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.423247][ T144] device bridge_slave_1 left promiscuous mode [ 83.430493][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.450016][ T144] device bridge_slave_0 left promiscuous mode [ 83.456668][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.478015][ T144] device veth1_macvtap left promiscuous mode [ 83.484570][ T144] device veth0_macvtap left promiscuous mode [ 83.490658][ T144] device veth1_vlan left promiscuous mode [ 83.497401][ T144] device veth0_vlan left promiscuous mode [ 83.664375][ T144] team0 (unregistering): Port device team_slave_1 removed [ 83.678212][ T144] team0 (unregistering): Port device team_slave_0 removed [ 83.694539][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.710216][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.771102][ T144] bond0 (unregistering): Released all slaves [ 83.877330][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.885567][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.898092][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.924410][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.936293][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.956015][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.965055][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.973783][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.981794][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.993413][ T4293] device veth0_vlan entered promiscuous mode [ 84.008332][ T4293] device veth1_vlan entered promiscuous mode [ 84.034818][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.042800][ T4264] Bluetooth: hci0: command 0x040f tx timeout [ 84.049278][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.058083][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.066712][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.078700][ T4293] device veth0_macvtap entered promiscuous mode [ 84.090617][ T4293] device veth1_macvtap entered promiscuous mode [ 84.105016][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.113452][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.130244][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.138075][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.147157][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.159468][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.166946][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.176312][ T3061] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.188052][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.198108][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.206917][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.216376][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.267585][ T3061] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.276332][ T3061] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.308559][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.317564][ T1282] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.326875][ T1282] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.335220][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.454298][ T4342] [ 84.456704][ T4342] ====================================================== [ 84.463749][ T4342] WARNING: possible circular locking dependency detected [ 84.470811][ T4342] syzkaller #0 Not tainted [ 84.475255][ T4342] ------------------------------------------------------ [ 84.482297][ T4342] syz.0.17/4342 is trying to acquire lock: [ 84.488134][ T4342] ffff888077af4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 84.499258][ T4342] [ 84.499258][ T4342] but task is already holding lock: [ 84.506671][ T4342] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.516380][ T4342] [ 84.516380][ T4342] which lock already depends on the new lock. [ 84.516380][ T4342] [ 84.526805][ T4342] [ 84.526805][ T4342] the existing dependency chain (in reverse order) is: [ 84.535844][ T4342] [ 84.535844][ T4342] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.543881][ T4342] __mutex_lock_common+0x1e3/0x2400 [ 84.549638][ T4342] mutex_lock_nested+0x17/0x20 [ 84.554964][ T4342] rfkill_register+0x33/0x8a0 [ 84.560201][ T4342] hci_register_dev+0x452/0x970 [ 84.565613][ T4342] vhci_create_device+0x32c/0x5c0 [ 84.571202][ T4342] vhci_write+0x391/0x450 [ 84.576101][ T4342] vfs_write+0x745/0xd60 [ 84.580902][ T4342] ksys_write+0x152/0x260 [ 84.585781][ T4342] do_syscall_64+0x4c/0xa0 [ 84.590750][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.597203][ T4342] [ 84.597203][ T4342] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.605056][ T4342] __mutex_lock_common+0x1e3/0x2400 [ 84.610816][ T4342] mutex_lock_nested+0x17/0x20 [ 84.616140][ T4342] vhci_send_frame+0x88/0x100 [ 84.621380][ T4342] hci_send_frame+0x1a9/0x2e0 [ 84.626613][ T4342] hci_tx_work+0x9f9/0x1710 [ 84.631673][ T4342] process_one_work+0x85f/0x1010 [ 84.637174][ T4342] worker_thread+0xaa6/0x1290 [ 84.642412][ T4342] kthread+0x436/0x520 [ 84.647034][ T4342] ret_from_fork+0x1f/0x30 [ 84.652003][ T4342] [ 84.652003][ T4342] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.661250][ T4342] __flush_work+0x116/0x210 [ 84.666321][ T4342] hci_dev_do_close+0x1e7/0x1030 [ 84.671815][ T4342] hci_unregister_dev+0x2d7/0x580 [ 84.677398][ T4342] vhci_release+0x73/0xc0 [ 84.682283][ T4342] __fput+0x234/0x930 [ 84.686816][ T4342] task_work_run+0x125/0x1a0 [ 84.691966][ T4342] do_exit+0x626/0x20c0 [ 84.696672][ T4342] do_group_exit+0x12e/0x300 [ 84.701817][ T4342] get_signal+0x6ca/0x12c0 [ 84.706784][ T4342] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.712975][ T4342] exit_to_user_mode_loop+0x9e/0x130 [ 84.718816][ T4342] exit_to_user_mode_prepare+0xee/0x180 [ 84.724918][ T4342] syscall_exit_to_user_mode+0x16/0x40 [ 84.730942][ T4342] do_syscall_64+0x58/0xa0 [ 84.735909][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.742358][ T4342] [ 84.742358][ T4342] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.750049][ T4342] __mutex_lock_common+0x1e3/0x2400 [ 84.755812][ T4342] mutex_lock_nested+0x17/0x20 [ 84.761145][ T4342] bg_scan_update+0x44/0x3b0 [ 84.766314][ T4342] process_one_work+0x85f/0x1010 [ 84.771824][ T4342] worker_thread+0xaa6/0x1290 [ 84.777063][ T4342] kthread+0x436/0x520 [ 84.781687][ T4342] ret_from_fork+0x1f/0x30 [ 84.786665][ T4342] [ 84.786665][ T4342] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.796538][ T4342] __lock_acquire+0x2c42/0x7d10 [ 84.801956][ T4342] lock_acquire+0x19e/0x400 [ 84.807020][ T4342] __flush_work+0x116/0x210 [ 84.812078][ T4342] __cancel_work_timer+0x3f4/0x560 [ 84.817753][ T4342] hci_request_cancel_all+0xcc/0x300 [ 84.823594][ T4342] hci_dev_do_close+0x4e/0x1030 [ 84.829009][ T4342] hci_rfkill_set_block+0x10a/0x190 [ 84.834762][ T4342] rfkill_set_block+0x1c6/0x420 [ 84.840287][ T4342] rfkill_fop_write+0x452/0x560 [ 84.845701][ T4342] vfs_write+0x30b/0xd60 [ 84.850495][ T4342] ksys_write+0x152/0x260 [ 84.855381][ T4342] do_syscall_64+0x4c/0xa0 [ 84.860356][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.866804][ T4342] [ 84.866804][ T4342] other info that might help us debug this: [ 84.866804][ T4342] [ 84.877062][ T4342] Chain exists of: [ 84.877062][ T4342] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.877062][ T4342] [ 84.892836][ T4342] Possible unsafe locking scenario: [ 84.892836][ T4342] [ 84.900314][ T4342] CPU0 CPU1 [ 84.905720][ T4342] ---- ---- [ 84.911122][ T4342] lock(rfkill_global_mutex); [ 84.915936][ T4342] lock(&data->open_mutex); [ 84.923086][ T4342] lock(rfkill_global_mutex); [ 84.930417][ T4342] lock((work_completion)(&hdev->bg_scan_update)); [ 84.937051][ T4342] [ 84.937051][ T4342] *** DEADLOCK *** [ 84.937051][ T4342] [ 84.945224][ T4342] 1 lock held by syz.0.17/4342: [ 84.950097][ T4342] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.960250][ T4342] [ 84.960250][ T4342] stack backtrace: [ 84.966193][ T4342] CPU: 1 PID: 4342 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.973436][ T4342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.983532][ T4342] Call Trace: [ 84.986842][ T4342] [ 84.989802][ T4342] dump_stack_lvl+0x188/0x250 [ 84.994517][ T4342] ? load_image+0x400/0x400 [ 84.999058][ T4342] ? show_regs_print_info+0x20/0x20 [ 85.004302][ T4342] ? print_circular_bug+0x12b/0x1a0 [ 85.009549][ T4342] check_noncircular+0x296/0x330 [ 85.014536][ T4342] ? look_up_lock_class+0x71/0x110 [ 85.019691][ T4342] ? add_chain_block+0x940/0x940 [ 85.024673][ T4342] ? lockdep_lock+0xf1/0x1f0 [ 85.029304][ T4342] ? __lock_acquire+0x12e8/0x7d10 [ 85.034372][ T4342] ? mark_lock+0x94/0x320 [ 85.038756][ T4342] __lock_acquire+0x2c42/0x7d10 [ 85.043664][ T4342] ? verify_lock_unused+0x140/0x140 [ 85.048903][ T4342] ? verify_lock_unused+0x140/0x140 [ 85.054151][ T4342] ? mark_lock+0x94/0x320 [ 85.058523][ T4342] lock_acquire+0x19e/0x400 [ 85.063072][ T4342] ? __flush_work+0xfa/0x210 [ 85.067693][ T4342] ? __lock_acquire+0x7d10/0x7d10 [ 85.072756][ T4342] ? read_lock_is_recursive+0x10/0x10 [ 85.078175][ T4342] ? start_flush_work+0x776/0x820 [ 85.083241][ T4342] __flush_work+0x116/0x210 [ 85.087785][ T4342] ? __flush_work+0xfa/0x210 [ 85.092416][ T4342] ? flush_work+0x20/0x20 [ 85.096791][ T4342] ? try_to_grab_pending+0xfa/0x7f0 [ 85.102024][ T4342] ? mark_lock+0x94/0x320 [ 85.106389][ T4342] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.112432][ T4342] ? lock_chain_count+0x20/0x20 [ 85.117329][ T4342] ? mark_lock+0x94/0x320 [ 85.121698][ T4342] ? __cancel_work_timer+0x36a/0x560 [ 85.127029][ T4342] __cancel_work_timer+0x3f4/0x560 [ 85.132184][ T4342] ? cancel_work_sync+0x20/0x20 [ 85.137070][ T4342] ? __cancel_work+0x1f9/0x2e0 [ 85.141890][ T4342] ? lockdep_hardirqs_on+0x94/0x140 [ 85.147142][ T4342] ? __cancel_work+0x27b/0x2e0 [ 85.151953][ T4342] ? cancel_work+0x20/0x20 [ 85.156403][ T4342] ? lock_chain_count+0x20/0x20 [ 85.161304][ T4342] hci_request_cancel_all+0xcc/0x300 [ 85.166634][ T4342] hci_dev_do_close+0x4e/0x1030 [ 85.171524][ T4342] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 85.177468][ T4342] ? _raw_spin_unlock+0x40/0x40 [ 85.182366][ T4342] hci_rfkill_set_block+0x10a/0x190 [ 85.187631][ T4342] ? rcu_lock_release+0x20/0x20 [ 85.192518][ T4342] rfkill_set_block+0x1c6/0x420 [ 85.197460][ T4342] rfkill_fop_write+0x452/0x560 [ 85.202355][ T4342] ? rfkill_fop_read+0x4d0/0x4d0 [ 85.207341][ T4342] ? common_file_perm+0x110/0x1c0 [ 85.212420][ T4342] ? fsnotify_perm+0x5d/0x560 [ 85.217134][ T4342] ? security_file_permission+0x75/0xa0 [ 85.222727][ T4342] ? rfkill_fop_read+0x4d0/0x4d0 [ 85.227703][ T4342] vfs_write+0x30b/0xd60 [ 85.231997][ T4342] ? file_end_write+0x250/0x250 [ 85.236896][ T4342] ? __context_tracking_exit+0x4c/0x80 [ 85.242404][ T4342] ? __lock_acquire+0x7d10/0x7d10 [ 85.247488][ T4342] ? __fdget_pos+0x1e2/0x370 [ 85.252126][ T4342] ksys_write+0x152/0x260 [ 85.256515][ T4342] ? __ia32_sys_read+0x80/0x80 [ 85.261313][ T4342] ? lockdep_hardirqs_on+0x94/0x140 [ 85.266557][ T4342] do_syscall_64+0x4c/0xa0 [ 85.271020][ T4342] ? clear_bhb_loop+0x30/0x80 [ 85.275732][ T4342] ? clear_bhb_loop+0x30/0x80 [ 85.280449][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.286394][ T4342] RIP: 0033:0x7fdf9eabb819 [ 85.290861][ T4342] 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 [ 85.310499][ T4342] RSP: 002b:00007ffee8e61988 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.318954][ T4342] RAX: ffffffffffffffda RBX: 00007fdf9ed34fa0 RCX: 00007fdf9eabb819 [ 85.326973][ T4342] RDX: 0000000000000008 RSI: 00002000000000c0 RDI: 0000000000000003 [ 85.335003][ T4342] RBP: 00007fdf9eb51c91 R08: 0000000000000000 R09: 0000000000000000 [ 85.343010][ T4342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.351015][ T4342] R13: 00007fdf9ed34fac R14: 00007fdf9ed34fa0 R15: 00007fdf9ed34fa0 [ 85.359030][ T4342]