Warning: Permanently added '10.128.0.6' (ED25519) to the list of known hosts. 2025/11/01 12:23:52 parsed 1 programs [ 69.806992][ T4188] cgroup: Unknown subsys name 'net' [ 69.941535][ T4188] cgroup: Unknown subsys name 'rlimit' [ 71.418936][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.425521][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.508314][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.374023][ T4210] chnl_net:caif_netlink_parms(): no params data found [ 73.423684][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.432598][ T4210] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.441338][ T4210] device bridge_slave_0 entered promiscuous mode [ 73.453243][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.460695][ T4210] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.468772][ T4210] device bridge_slave_1 entered promiscuous mode [ 73.495541][ T4210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.507325][ T4210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.531774][ T4210] team0: Port device team_slave_0 added [ 73.540182][ T4210] team0: Port device team_slave_1 added [ 73.562769][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.569988][ T4210] 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. [ 73.596079][ T4210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.609041][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.616143][ T4210] 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. [ 73.642194][ T4210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.687039][ T4210] device hsr_slave_0 entered promiscuous mode [ 73.694026][ T4210] device hsr_slave_1 entered promiscuous mode [ 73.836842][ T4210] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.849660][ T4210] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.861079][ T4210] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.871828][ T4210] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.910412][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.917801][ T4210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.926067][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.933178][ T4210] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.992504][ T4210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.008200][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.019915][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.029326][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.037789][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.053465][ T4210] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.066021][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.076543][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.083698][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.108359][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.120952][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.128108][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.139763][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.157612][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.166798][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.175562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.190996][ T4210] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.204079][ T4210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.213685][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.342356][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.350210][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.366835][ T4210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.388870][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.398557][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.420869][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.430966][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.441100][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.451647][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.477820][ T4210] device veth0_vlan entered promiscuous mode [ 74.492764][ T4210] device veth1_vlan entered promiscuous mode [ 74.520650][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.529162][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.538983][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.548588][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.561520][ T4210] device veth0_macvtap entered promiscuous mode [ 74.572596][ T4210] device veth1_macvtap entered promiscuous mode [ 74.591808][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.600296][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.616085][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.624244][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.633513][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.647688][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.656849][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.666657][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.677978][ T4210] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.688356][ T4210] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.697926][ T4210] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.707212][ T4210] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.033981][ T379] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.131901][ T379] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.670431][ T379] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.742668][ T379] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.315742][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.325345][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.338416][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.380962][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.404435][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.420188][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.567279][ T379] device hsr_slave_0 left promiscuous mode [ 80.574607][ T379] device hsr_slave_1 left promiscuous mode [ 80.582571][ T379] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.591650][ T379] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.600580][ T379] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.609962][ T379] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.618447][ T379] device bridge_slave_1 left promiscuous mode [ 80.625731][ T379] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.644003][ T379] device bridge_slave_0 left promiscuous mode [ 80.650721][ T379] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.675956][ T379] device veth1_macvtap left promiscuous mode [ 80.682413][ T379] device veth0_macvtap left promiscuous mode [ 80.689907][ T379] device veth1_vlan left promiscuous mode [ 80.697191][ T379] device veth0_vlan left promiscuous mode [ 80.873866][ T379] team0 (unregistering): Port device team_slave_1 removed [ 80.887854][ T379] team0 (unregistering): Port device team_slave_0 removed [ 80.901534][ T379] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.915966][ T379] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.976181][ T379] bond0 (unregistering): Released all slaves 2025/11/01 12:24:07 executed programs: 0 [ 82.612008][ T4343] chnl_net:caif_netlink_parms(): no params data found [ 82.710031][ T4343] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.736223][ T4343] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.744854][ T4343] device bridge_slave_0 entered promiscuous mode [ 82.760436][ T4343] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.774362][ T4343] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.784170][ T4343] device bridge_slave_1 entered promiscuous mode [ 82.839489][ T4343] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.867563][ T4343] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.921155][ T4343] team0: Port device team_slave_0 added [ 82.938242][ T4343] team0: Port device team_slave_1 added [ 82.963839][ T4343] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.971265][ T4343] 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. [ 82.998569][ T4343] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.024733][ T4343] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.036362][ T4343] 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. [ 83.063710][ T4343] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.132273][ T4343] device hsr_slave_0 entered promiscuous mode [ 83.156362][ T4343] device hsr_slave_1 entered promiscuous mode [ 84.073598][ T4343] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 84.084850][ T4343] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 84.096487][ T4343] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 84.107294][ T4343] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.189363][ T4343] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.206167][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.216717][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.227816][ T4343] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.245284][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.254402][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.264842][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.272050][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.282906][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.292048][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.301053][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.308212][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.316635][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.326746][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.347089][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.357504][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.370162][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.376325][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 84.379812][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.395763][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.412346][ T4343] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 84.423605][ T4343] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.436210][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.444640][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.456730][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.467476][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.476461][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.485721][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.704062][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.713932][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.728366][ T4343] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.780388][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.792486][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.854316][ T4343] device veth0_vlan entered promiscuous mode [ 84.862247][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.872693][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.935576][ T4343] device veth1_vlan entered promiscuous mode [ 84.946723][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.954692][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.966706][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.979628][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.006791][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 85.017877][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.027712][ T4343] device veth0_macvtap entered promiscuous mode [ 85.081746][ T4343] device veth1_macvtap entered promiscuous mode [ 85.104527][ T4343] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.112655][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.123320][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 85.132429][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.142542][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.156096][ T4343] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.163426][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.174735][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.189268][ T4343] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.198959][ T4343] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.208047][ T4343] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.217708][ T4343] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.339274][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.366848][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.390177][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.430605][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.439949][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.450702][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.589276][ T4480] [ 85.591652][ T4480] ====================================================== [ 85.598695][ T4480] WARNING: possible circular locking dependency detected [ 85.605760][ T4480] syzkaller #0 Not tainted [ 85.610462][ T4480] ------------------------------------------------------ [ 85.617588][ T4480] syz.0.17/4480 is trying to acquire lock: [ 85.623414][ T4480] ffff8880787dcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 85.634604][ T4480] [ 85.634604][ T4480] but task is already holding lock: [ 85.641991][ T4480] ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 85.651697][ T4480] [ 85.651697][ T4480] which lock already depends on the new lock. [ 85.651697][ T4480] [ 85.662128][ T4480] [ 85.662128][ T4480] the existing dependency chain (in reverse order) is: [ 85.671170][ T4480] [ 85.671170][ T4480] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.679332][ T4480] __mutex_lock_common+0x1eb/0x2390 [ 85.685092][ T4480] mutex_lock_nested+0x17/0x20 [ 85.690414][ T4480] rfkill_register+0x33/0x8a0 [ 85.695649][ T4480] hci_register_dev+0x452/0x970 [ 85.701074][ T4480] vhci_create_device+0x32c/0x5c0 [ 85.706652][ T4480] vhci_write+0x391/0x450 [ 85.711651][ T4480] vfs_write+0x712/0xd00 [ 85.716454][ T4480] ksys_write+0x14d/0x250 [ 85.721329][ T4480] do_syscall_64+0x4c/0xa0 [ 85.726293][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.732763][ T4480] [ 85.732763][ T4480] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.740705][ T4480] __mutex_lock_common+0x1eb/0x2390 [ 85.746462][ T4480] mutex_lock_nested+0x17/0x20 [ 85.751789][ T4480] vhci_send_frame+0x88/0x100 [ 85.757022][ T4480] hci_send_frame+0x1a9/0x2e0 [ 85.762252][ T4480] hci_tx_work+0x9f9/0x1710 [ 85.767308][ T4480] process_one_work+0x863/0x1000 [ 85.772813][ T4480] worker_thread+0xaa8/0x12a0 [ 85.778057][ T4480] kthread+0x436/0x520 [ 85.782684][ T4480] ret_from_fork+0x1f/0x30 [ 85.787653][ T4480] [ 85.787653][ T4480] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.796903][ T4480] __flush_work+0xdd/0x1b0 [ 85.801878][ T4480] hci_dev_do_close+0x1e7/0x1030 [ 85.807371][ T4480] hci_unregister_dev+0x2d7/0x580 [ 85.813010][ T4480] vhci_release+0x73/0xc0 [ 85.817896][ T4480] __fput+0x234/0x930 [ 85.822455][ T4480] task_work_run+0x125/0x1a0 [ 85.827605][ T4480] do_exit+0x61e/0x20a0 [ 85.832319][ T4480] do_group_exit+0x12e/0x300 [ 85.837471][ T4480] get_signal+0x6ca/0x12c0 [ 85.842433][ T4480] arch_do_signal_or_restart+0xc1/0x1300 [ 85.848623][ T4480] exit_to_user_mode_loop+0x9e/0x130 [ 85.854480][ T4480] exit_to_user_mode_prepare+0xee/0x180 [ 85.860588][ T4480] syscall_exit_to_user_mode+0x16/0x40 [ 85.866609][ T4480] do_syscall_64+0x58/0xa0 [ 85.871583][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.878033][ T4480] [ 85.878033][ T4480] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.885795][ T4480] __mutex_lock_common+0x1eb/0x2390 [ 85.891549][ T4480] mutex_lock_nested+0x17/0x20 [ 85.896876][ T4480] bg_scan_update+0x44/0x3b0 [ 85.902158][ T4480] process_one_work+0x863/0x1000 [ 85.907644][ T4480] worker_thread+0xaa8/0x12a0 [ 85.912879][ T4480] kthread+0x436/0x520 [ 85.917590][ T4480] ret_from_fork+0x1f/0x30 [ 85.922562][ T4480] [ 85.922562][ T4480] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.932417][ T4480] __lock_acquire+0x2c33/0x7c60 [ 85.937918][ T4480] lock_acquire+0x197/0x3f0 [ 85.942988][ T4480] __flush_work+0xdd/0x1b0 [ 85.947964][ T4480] __cancel_work_timer+0x3ac/0x520 [ 85.953629][ T4480] hci_request_cancel_all+0xcc/0x300 [ 85.959481][ T4480] hci_dev_do_close+0x4e/0x1030 [ 85.964886][ T4480] hci_rfkill_set_block+0x10a/0x190 [ 85.970640][ T4480] rfkill_set_block+0x1c6/0x420 [ 85.976151][ T4480] rfkill_fop_write+0x458/0x560 [ 85.981559][ T4480] vfs_write+0x300/0xd00 [ 85.986349][ T4480] ksys_write+0x14d/0x250 [ 85.991236][ T4480] do_syscall_64+0x4c/0xa0 [ 85.996202][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.002660][ T4480] [ 86.002660][ T4480] other info that might help us debug this: [ 86.002660][ T4480] [ 86.012914][ T4480] Chain exists of: [ 86.012914][ T4480] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.012914][ T4480] [ 86.028763][ T4480] Possible unsafe locking scenario: [ 86.028763][ T4480] [ 86.036233][ T4480] CPU0 CPU1 [ 86.041713][ T4480] ---- ---- [ 86.047124][ T4480] lock(rfkill_global_mutex); [ 86.052046][ T4480] lock(&data->open_mutex); [ 86.059183][ T4480] lock(rfkill_global_mutex); [ 86.066494][ T4480] lock((work_completion)(&hdev->bg_scan_update)); [ 86.073213][ T4480] [ 86.073213][ T4480] *** DEADLOCK *** [ 86.073213][ T4480] [ 86.081391][ T4480] 1 lock held by syz.0.17/4480: [ 86.086279][ T4480] #0: ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.096416][ T4480] [ 86.096416][ T4480] stack backtrace: [ 86.102333][ T4480] CPU: 0 PID: 4480 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.109561][ T4480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 86.119675][ T4480] Call Trace: [ 86.122978][ T4480] [ 86.125929][ T4480] dump_stack_lvl+0x168/0x230 [ 86.130744][ T4480] ? load_image+0x3b0/0x3b0 [ 86.135279][ T4480] ? show_regs_print_info+0x20/0x20 [ 86.140514][ T4480] ? print_circular_bug+0x12b/0x1a0 [ 86.145749][ T4480] check_noncircular+0x274/0x310 [ 86.150806][ T4480] ? add_chain_block+0x940/0x940 [ 86.155770][ T4480] ? lockdep_lock+0xdc/0x1e0 [ 86.160402][ T4480] ? __lock_acquire+0x12d9/0x7c60 [ 86.165454][ T4480] ? lockdep_lock+0x1e0/0x1e0 [ 86.170162][ T4480] ? mark_lock+0x94/0x320 [ 86.174532][ T4480] __lock_acquire+0x2c33/0x7c60 [ 86.179516][ T4480] ? verify_lock_unused+0x140/0x140 [ 86.184753][ T4480] ? verify_lock_unused+0x140/0x140 [ 86.189997][ T4480] lock_acquire+0x197/0x3f0 [ 86.194537][ T4480] ? __flush_work+0xc1/0x1b0 [ 86.199161][ T4480] ? __lock_acquire+0x7c60/0x7c60 [ 86.204222][ T4480] ? read_lock_is_recursive+0x10/0x10 [ 86.209756][ T4480] ? start_flush_work+0x776/0x820 [ 86.214814][ T4480] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.220784][ T4480] ? _raw_spin_unlock+0x40/0x40 [ 86.225672][ T4480] __flush_work+0xdd/0x1b0 [ 86.230121][ T4480] ? __flush_work+0xc1/0x1b0 [ 86.234759][ T4480] ? flush_work+0x20/0x20 [ 86.239205][ T4480] ? try_to_grab_pending+0xf3/0x7e0 [ 86.244441][ T4480] ? lockdep_hardirqs_off+0x70/0x100 [ 86.249769][ T4480] ? mark_lock+0x94/0x320 [ 86.254137][ T4480] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 86.260158][ T4480] ? lock_chain_count+0x20/0x20 [ 86.265051][ T4480] ? mark_lock+0x94/0x320 [ 86.269423][ T4480] ? __cancel_work_timer+0x331/0x520 [ 86.274748][ T4480] __cancel_work_timer+0x3ac/0x520 [ 86.279893][ T4480] ? cancel_work_sync+0x20/0x20 [ 86.284780][ T4480] ? __cancel_work+0x1f4/0x2d0 [ 86.289578][ T4480] ? lockdep_hardirqs_on+0x94/0x140 [ 86.294824][ T4480] ? __cancel_work+0x26f/0x2d0 [ 86.299634][ T4480] ? cancel_work+0x20/0x20 [ 86.304081][ T4480] ? lock_chain_count+0x20/0x20 [ 86.308971][ T4480] hci_request_cancel_all+0xcc/0x300 [ 86.314297][ T4480] hci_dev_do_close+0x4e/0x1030 [ 86.319187][ T4480] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.325112][ T4480] ? _raw_spin_unlock+0x40/0x40 [ 86.330080][ T4480] hci_rfkill_set_block+0x10a/0x190 [ 86.335314][ T4480] ? rcu_lock_release+0x20/0x20 [ 86.340202][ T4480] rfkill_set_block+0x1c6/0x420 [ 86.345174][ T4480] rfkill_fop_write+0x458/0x560 [ 86.350056][ T4480] ? verify_lock_unused+0x140/0x140 [ 86.355290][ T4480] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.360262][ T4480] ? common_file_perm+0x130/0x1c0 [ 86.365316][ T4480] ? fsnotify_perm+0x5d/0x560 [ 86.370022][ T4480] ? security_file_permission+0x75/0xa0 [ 86.375686][ T4480] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.380663][ T4480] vfs_write+0x300/0xd00 [ 86.384934][ T4480] ? file_end_write+0x250/0x250 [ 86.389815][ T4480] ? __context_tracking_exit+0x4c/0x80 [ 86.395316][ T4480] ? __lock_acquire+0x7c60/0x7c60 [ 86.400373][ T4480] ? __fdget_pos+0x1e2/0x370 [ 86.404997][ T4480] ksys_write+0x14d/0x250 [ 86.409361][ T4480] ? __ia32_sys_read+0x80/0x80 [ 86.414171][ T4480] ? lockdep_hardirqs_on+0x94/0x140 [ 86.419398][ T4480] do_syscall_64+0x4c/0xa0 [ 86.423847][ T4480] ? clear_bhb_loop+0x30/0x80 [ 86.428553][ T4480] ? clear_bhb_loop+0x30/0x80 [ 86.433273][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.439211][ T4480] RIP: 0033:0x7ff2639f6fc9 [ 86.443658][ T4480] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 86.447676][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 86.463377][ T4480] RSP: 002b:00007fffcdab5e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.463402][ T4480] RAX: ffffffffffffffda RBX: 00007ff263c4dfa0 RCX: 00007ff2639f6fc9 [ 86.463417][ T4480] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 86.463428][ T4480] RBP: 00007ff263a79f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.463440][ T4480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.463451][ T4480] R13: 00007ff263c4dfa0 R14: 00007ff263c4dfa0 R15: 0000000000000003 [ 86.463472][ T4480] [ 86.765340][ T1326] cfg80211: failed to load regulatory.db