Warning: Permanently added '10.128.0.250' (ED25519) to the list of known hosts. 2026/07/15 02:38:25 parsed 1 programs 2026/07/15 02:38:25 serving rpc on tcp://39931 [ 66.302377][ T4199] cgroup: Unknown subsys name 'net' [ 66.427697][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 67.927809][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 69.961370][ T145] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.975303][ T145] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.987571][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.018000][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.026514][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.036009][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.261534][ T4229] chnl_net:caif_netlink_parms(): no params data found [ 70.334197][ T4229] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.343254][ T4229] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.351612][ T4229] device bridge_slave_0 entered promiscuous mode [ 70.362077][ T4229] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.369256][ T4229] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.383512][ T4229] device bridge_slave_1 entered promiscuous mode [ 70.414202][ T4229] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.427892][ T4229] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.455687][ T4229] team0: Port device team_slave_0 added [ 70.463743][ T4229] team0: Port device team_slave_1 added [ 70.487151][ T4229] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.494381][ T4229] 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. [ 70.520540][ T4229] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.533772][ T4229] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.540829][ T4229] 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. [ 70.566916][ T4229] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.606912][ T4229] device hsr_slave_0 entered promiscuous mode [ 70.613953][ T4229] device hsr_slave_1 entered promiscuous mode [ 70.757980][ T4229] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.770382][ T4229] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.780600][ T4229] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.792522][ T4229] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.877380][ T4229] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.892395][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.903102][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.916308][ T4229] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.928750][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.938419][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.950022][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.957410][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.980688][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.998385][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.008343][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.017871][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.024994][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.045222][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.054797][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.074976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.085709][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.095519][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.105283][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.114379][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.122944][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.131620][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.143727][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.152895][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.174999][ T4229] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.320839][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.331136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.345652][ T4229] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.368715][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.378513][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.396608][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.405885][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.415444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.423851][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.438118][ T4229] device veth0_vlan entered promiscuous mode [ 71.457497][ T4229] device veth1_vlan entered promiscuous mode [ 71.496206][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.505627][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.518199][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.538451][ T4229] device veth0_macvtap entered promiscuous mode [ 71.552411][ T4229] device veth1_macvtap entered promiscuous mode [ 71.567125][ T1431] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.573723][ T1431] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.590745][ T4229] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.600468][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.608976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.617669][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.628373][ T4229] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.637047][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.646733][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.658918][ T4229] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.668015][ T4229] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.678052][ T4229] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.687764][ T4229] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/07/15 02:38:35 executed programs: 0 [ 74.171493][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.245099][ T4295] chnl_net:caif_netlink_parms(): no params data found [ 74.282630][ T4295] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.289855][ T4295] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.298016][ T4295] device bridge_slave_0 entered promiscuous mode [ 74.306265][ T4295] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.313504][ T4295] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.321187][ T4295] device bridge_slave_1 entered promiscuous mode [ 74.339041][ T4295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.349932][ T4295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.370973][ T4295] team0: Port device team_slave_0 added [ 74.378310][ T4295] team0: Port device team_slave_1 added [ 74.393957][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.400936][ T4295] 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. [ 74.427936][ T4295] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.445457][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.452773][ T4295] 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. [ 74.479117][ T4295] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.506898][ T4295] device hsr_slave_0 entered promiscuous mode [ 74.514085][ T4295] device hsr_slave_1 entered promiscuous mode [ 74.521299][ T4295] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.529439][ T4295] Cannot create hsr debugfs directory [ 76.192657][ T4243] Bluetooth: hci0: command 0x0409 tx timeout [ 77.269204][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.307205][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.389308][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.270230][ T4295] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.277287][ T4211] Bluetooth: hci0: command 0x041b tx timeout [ 78.287010][ T4295] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.297552][ T4295] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.307411][ T4295] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.398386][ T4295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.410635][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.419082][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.450347][ T4295] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.459789][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.469011][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.477938][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.485059][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.495565][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.515770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.524694][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.533922][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.541197][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.550965][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.560364][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.573317][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.582472][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.609564][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.620976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.630221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.644972][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.654181][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.693734][ T4295] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.705409][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.713456][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.722138][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.851275][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.859104][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.870582][ T4295] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.905791][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.914758][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.935783][ T155] device hsr_slave_0 left promiscuous mode [ 78.942422][ T155] device hsr_slave_1 left promiscuous mode [ 78.949143][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.957466][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.966344][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.973828][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.982535][ T155] device bridge_slave_1 left promiscuous mode [ 78.989460][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.003853][ T155] device bridge_slave_0 left promiscuous mode [ 79.010213][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.026918][ T155] device veth1_macvtap left promiscuous mode [ 79.033416][ T155] device veth0_macvtap left promiscuous mode [ 79.039463][ T155] device veth1_vlan left promiscuous mode [ 79.045604][ T155] device veth0_vlan left promiscuous mode [ 79.198978][ T155] team0 (unregistering): Port device team_slave_1 removed [ 79.216503][ T155] team0 (unregistering): Port device team_slave_0 removed [ 79.229741][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.244868][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.302683][ T155] bond0 (unregistering): Released all slaves [ 79.385567][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.394683][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.403507][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.411191][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.421283][ T4295] device veth0_vlan entered promiscuous mode [ 79.431642][ T4295] device veth1_vlan entered promiscuous mode [ 79.460197][ T4295] device veth0_macvtap entered promiscuous mode [ 79.474797][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.484632][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.496430][ T4295] device veth1_macvtap entered promiscuous mode [ 79.503929][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.512481][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.527293][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.537663][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.547136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.560014][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.572011][ T4295] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.587718][ T4295] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.597043][ T4295] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.606046][ T4295] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.618575][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.627604][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.697412][ T4225] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.708035][ T4225] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.720722][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.744720][ T4225] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.753959][ T4225] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.763003][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.907808][ T4352] [ 79.910194][ T4352] ====================================================== [ 79.917224][ T4352] WARNING: possible circular locking dependency detected [ 79.924256][ T4352] syzkaller #0 Not tainted [ 79.928688][ T4352] ------------------------------------------------------ [ 79.935717][ T4352] syz.0.17/4352 is trying to acquire lock: [ 79.941621][ T4352] ffff888078d8d028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.952686][ T4352] [ 79.952686][ T4352] but task is already holding lock: [ 79.960061][ T4352] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 79.969839][ T4352] [ 79.969839][ T4352] which lock already depends on the new lock. [ 79.969839][ T4352] [ 79.980257][ T4352] [ 79.980257][ T4352] the existing dependency chain (in reverse order) is: [ 79.989385][ T4352] [ 79.989385][ T4352] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.997405][ T4352] __mutex_lock_common+0x1e5/0x2400 [ 80.003155][ T4352] mutex_lock_nested+0x17/0x20 [ 80.008589][ T4352] rfkill_register+0x2f/0x970 [ 80.013815][ T4352] hci_register_dev+0x459/0x980 [ 80.019201][ T4352] vhci_create_device+0x32e/0x5c0 [ 80.024758][ T4352] vhci_write+0x389/0x440 [ 80.029662][ T4352] vfs_write+0x748/0xd70 [ 80.034441][ T4352] ksys_write+0x153/0x260 [ 80.039311][ T4352] do_syscall_64+0x4c/0xa0 [ 80.044369][ T4352] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.050814][ T4352] [ 80.050814][ T4352] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.058654][ T4352] __mutex_lock_common+0x1e5/0x2400 [ 80.064399][ T4352] mutex_lock_nested+0x17/0x20 [ 80.069717][ T4352] vhci_send_frame+0x88/0x100 [ 80.074945][ T4352] hci_send_frame+0x1a9/0x2e0 [ 80.080156][ T4352] hci_tx_work+0x9b5/0x16d0 [ 80.085208][ T4352] process_one_work+0x867/0xff0 [ 80.090598][ T4352] worker_thread+0xad7/0x12a0 [ 80.095823][ T4352] kthread+0x42e/0x520 [ 80.100440][ T4352] ret_from_fork+0x1f/0x30 [ 80.105390][ T4352] [ 80.105390][ T4352] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.114619][ T4352] __flush_work+0x116/0x210 [ 80.119755][ T4352] hci_dev_do_close+0x201/0x1020 [ 80.125228][ T4352] hci_unregister_dev+0x2eb/0x590 [ 80.130789][ T4352] vhci_release+0x73/0xc0 [ 80.135659][ T4352] __fput+0x212/0x8c0 [ 80.140173][ T4352] task_work_run+0x125/0x1a0 [ 80.145380][ T4352] do_exit+0x635/0x2110 [ 80.150069][ T4352] do_group_exit+0x12c/0x2f0 [ 80.155285][ T4352] get_signal+0x7eb/0x12e0 [ 80.160234][ T4352] arch_do_signal_or_restart+0xe6/0x12a0 [ 80.166402][ T4352] exit_to_user_mode_loop+0x9e/0x130 [ 80.172206][ T4352] exit_to_user_mode_prepare+0xee/0x180 [ 80.178275][ T4352] syscall_exit_to_user_mode+0x16/0x40 [ 80.184260][ T4352] do_syscall_64+0x58/0xa0 [ 80.189190][ T4352] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.195608][ T4352] [ 80.195608][ T4352] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 80.203348][ T4352] __mutex_lock_common+0x1e5/0x2400 [ 80.209270][ T4352] mutex_lock_nested+0x17/0x20 [ 80.214812][ T4352] bg_scan_update+0x44/0x3b0 [ 80.219920][ T4352] process_one_work+0x867/0xff0 [ 80.225595][ T4352] worker_thread+0xad7/0x12a0 [ 80.230891][ T4352] kthread+0x42e/0x520 [ 80.235520][ T4352] ret_from_fork+0x1f/0x30 [ 80.240681][ T4352] [ 80.240681][ T4352] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 80.250516][ T4352] __lock_acquire+0x2c66/0x7b50 [ 80.255898][ T4352] lock_acquire+0x19e/0x400 [ 80.261181][ T4352] __flush_work+0x116/0x210 [ 80.266197][ T4352] __cancel_work_timer+0x3f4/0x560 [ 80.271823][ T4352] hci_request_cancel_all+0xcc/0x300 [ 80.277632][ T4352] hci_dev_do_close+0x4e/0x1020 [ 80.283004][ T4352] hci_rfkill_set_block+0x101/0x180 [ 80.288728][ T4352] rfkill_set_block+0x1c1/0x3c0 [ 80.294101][ T4352] rfkill_fop_write+0x453/0x560 [ 80.299473][ T4352] vfs_write+0x304/0xd70 [ 80.304232][ T4352] ksys_write+0x153/0x260 [ 80.309076][ T4352] do_syscall_64+0x4c/0xa0 [ 80.314013][ T4352] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.320441][ T4352] [ 80.320441][ T4352] other info that might help us debug this: [ 80.320441][ T4352] [ 80.330752][ T4352] Chain exists of: [ 80.330752][ T4352] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 80.330752][ T4352] [ 80.346686][ T4352] Possible unsafe locking scenario: [ 80.346686][ T4352] [ 80.354151][ T4352] CPU0 CPU1 [ 80.359520][ T4352] ---- ---- [ 80.364899][ T4352] lock(rfkill_global_mutex); [ 80.369837][ T4352] lock(&data->open_mutex); [ 80.377040][ T4352] lock(rfkill_global_mutex); [ 80.384956][ T4352] lock((work_completion)(&hdev->bg_scan_update)); [ 80.391548][ T4352] [ 80.391548][ T4352] *** DEADLOCK *** [ 80.391548][ T4352] [ 80.400221][ T4352] 1 lock held by syz.0.17/4352: [ 80.405077][ T4352] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 80.415183][ T4352] [ 80.415183][ T4352] stack backtrace: [ 80.421064][ T4352] CPU: 0 PID: 4352 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.428342][ T4352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 80.438396][ T4352] Call Trace: [ 80.441670][ T4352] [ 80.444620][ T4352] dump_stack_lvl+0x188/0x250 [ 80.449335][ T4352] ? load_image+0x410/0x410 [ 80.454010][ T4352] ? show_regs_print_info+0x20/0x20 [ 80.459206][ T4352] ? print_circular_bug+0x12b/0x1a0 [ 80.464489][ T4352] check_noncircular+0x296/0x330 [ 80.469442][ T4352] ? look_up_lock_class+0x71/0x110 [ 80.474585][ T4352] ? add_chain_block+0x9b0/0x9b0 [ 80.479616][ T4352] ? lockdep_lock+0xf1/0x1f0 [ 80.484563][ T4352] ? __lock_acquire+0x1305/0x7b50 [ 80.489591][ T4352] ? mark_lock+0x94/0x320 [ 80.494532][ T4352] ? _find_first_zero_bit+0xd1/0xf0 [ 80.499746][ T4352] __lock_acquire+0x2c66/0x7b50 [ 80.504616][ T4352] ? verify_lock_unused+0x140/0x140 [ 80.509824][ T4352] ? verify_lock_unused+0x140/0x140 [ 80.515226][ T4352] lock_acquire+0x19e/0x400 [ 80.519745][ T4352] ? __flush_work+0xfa/0x210 [ 80.524341][ T4352] ? __lock_acquire+0x7b50/0x7b50 [ 80.530303][ T4352] ? read_lock_is_recursive+0x10/0x10 [ 80.535708][ T4352] ? start_flush_work+0x784/0x830 [ 80.540776][ T4352] __flush_work+0x116/0x210 [ 80.545282][ T4352] ? __flush_work+0xfa/0x210 [ 80.549963][ T4352] ? flush_work+0x20/0x20 [ 80.554287][ T4352] ? try_to_grab_pending+0xfb/0x820 [ 80.559492][ T4352] ? mark_lock+0x94/0x320 [ 80.563816][ T4352] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 80.569846][ T4352] ? lock_chain_count+0x20/0x20 [ 80.574694][ T4352] ? mark_lock+0x94/0x320 [ 80.579019][ T4352] ? __cancel_work_timer+0x36a/0x560 [ 80.584359][ T4352] __cancel_work_timer+0x3f4/0x560 [ 80.589562][ T4352] ? cancel_work_sync+0x20/0x20 [ 80.594506][ T4352] ? __cancel_work+0x1f9/0x2e0 [ 80.599267][ T4352] ? lockdep_hardirqs_on+0x94/0x140 [ 80.604479][ T4352] ? __cancel_work+0x27b/0x2e0 [ 80.609270][ T4352] ? cancel_work+0x20/0x20 [ 80.613771][ T4352] hci_request_cancel_all+0xcc/0x300 [ 80.619055][ T4352] hci_dev_do_close+0x4e/0x1020 [ 80.623913][ T4352] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 80.629815][ T4352] ? _raw_spin_unlock+0x40/0x40 [ 80.634668][ T4352] hci_rfkill_set_block+0x101/0x180 [ 80.639865][ T4352] ? rcu_lock_release+0x20/0x20 [ 80.644711][ T4352] rfkill_set_block+0x1c1/0x3c0 [ 80.649562][ T4352] rfkill_fop_write+0x453/0x560 [ 80.654420][ T4352] ? rfkill_fop_read+0x560/0x560 [ 80.659353][ T4352] ? common_file_perm+0xf0/0x1c0 [ 80.664376][ T4352] ? fsnotify_perm+0x5d/0x560 [ 80.669050][ T4352] ? security_file_permission+0x75/0xa0 [ 80.674880][ T4352] ? rfkill_fop_read+0x560/0x560 [ 80.679989][ T4352] vfs_write+0x304/0xd70 [ 80.684235][ T4352] ? file_end_write+0x250/0x250 [ 80.689091][ T4352] ? __context_tracking_exit+0x4c/0x80 [ 80.694560][ T4352] ? __fdget_pos+0x1e2/0x370 [ 80.699236][ T4352] ksys_write+0x153/0x260 [ 80.703768][ T4352] ? __ia32_sys_read+0x80/0x80 [ 80.708535][ T4352] ? lockdep_hardirqs_on+0x94/0x140 [ 80.713730][ T4352] do_syscall_64+0x4c/0xa0 [ 80.718153][ T4352] ? clear_bhb_loop+0x30/0x80 [ 80.722825][ T4352] ? clear_bhb_loop+0x30/0x80 [ 80.727520][ T4352] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.733440][ T4352] RIP: 0033:0x7f370e966e59 [ 80.737857][ T4352] 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 [ 80.757643][ T4352] RSP: 002b:00007ffed96b73e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.766082][ T4352] RAX: ffffffffffffffda RBX: 00007f370ebeefa0 RCX: 00007f370e966e59 [ 80.774652][ T4352] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 80.782668][ T4352] RBP: 00007f370e9fce6f R08: 0000000000000000 R09: 0000000000000000 [ 80.790658][ T4352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.798653][ T4352] R13: 00007f370ebeefac R14: 00007f370ebeefa0 R15: 00007f370ebeefa0 [ 80.807790][ T4352] [ 80.814172][ T7] Bluetooth: hci0: command 0x040f tx timeout