Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. 2026/09/12 21:15:01 parsed 1 programs 2026/09/12 21:15:01 serving rpc on tcp://38031 [ 63.527345][ T4198] cgroup: Unknown subsys name 'net' [ 63.675915][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 64.917833][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 68.028169][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.038826][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.049596][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.070291][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.078992][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.087087][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.392810][ T4281] chnl_net:caif_netlink_parms(): no params data found [ 68.430092][ T4281] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.437561][ T4281] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.445972][ T4281] device bridge_slave_0 entered promiscuous mode [ 68.455266][ T4281] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.462477][ T4281] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.470385][ T4281] device bridge_slave_1 entered promiscuous mode [ 68.489248][ T4281] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.500414][ T4281] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.519699][ T4281] team0: Port device team_slave_0 added [ 68.526973][ T4281] team0: Port device team_slave_1 added [ 68.542261][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.549190][ T4281] 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. [ 68.575257][ T4281] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.587576][ T4281] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.594597][ T4281] 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. [ 68.620517][ T4281] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.647332][ T4281] device hsr_slave_0 entered promiscuous mode [ 68.654222][ T4281] device hsr_slave_1 entered promiscuous mode [ 68.731289][ T4281] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.742421][ T4281] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.750985][ T4281] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.759718][ T4281] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.778922][ T4281] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.786098][ T4281] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.793922][ T4281] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.801012][ T4281] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.853936][ T4281] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.867849][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.876771][ T3065] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.885093][ T3065] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.915263][ T4281] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.928242][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.937387][ T3065] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.944460][ T3065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.962999][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.972669][ T3065] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.979695][ T3065] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.988197][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.998963][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.010948][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.045866][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.054654][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.064580][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.073083][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.083807][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.180303][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.188392][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.200384][ T4281] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.232201][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.240734][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.257707][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.265752][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.275726][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.284739][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.293406][ T4281] device veth0_vlan entered promiscuous mode [ 69.323432][ T4281] device veth1_vlan entered promiscuous mode [ 69.339486][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.348036][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.356267][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.364769][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.374386][ T4281] device veth0_macvtap entered promiscuous mode [ 69.398550][ T4281] device veth1_macvtap entered promiscuous mode [ 69.412007][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.419431][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.428010][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.436687][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.445434][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.456582][ T4281] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.469678][ T4281] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.478723][ T4281] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.487764][ T4281] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.496598][ T4281] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.506948][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.515733][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.611922][ T4281] syz-executor (4281) used greatest stack depth: 20304 bytes left 2026/09/12 21:15:09 executed programs: 0 [ 70.115290][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 70.172055][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.179180][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.187901][ T4301] device bridge_slave_0 entered promiscuous mode [ 70.198309][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.205639][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.213838][ T4301] device bridge_slave_1 entered promiscuous mode [ 70.236997][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.249019][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.275259][ T4301] team0: Port device team_slave_0 added [ 70.283283][ T4301] team0: Port device team_slave_1 added [ 70.303516][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.310457][ T4301] 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. [ 70.336914][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.350283][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.357507][ T4301] 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. [ 70.384064][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.426217][ T4301] device hsr_slave_0 entered promiscuous mode [ 70.435282][ T4301] device hsr_slave_1 entered promiscuous mode [ 70.442228][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.450039][ T4301] Cannot create hsr debugfs directory [ 70.557322][ T4301] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.144255][ T1432] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.150712][ T1432] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.021718][ T4275] Bluetooth: hci0: command 0x0409 tx timeout [ 72.666097][ T4301] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.101373][ T4275] Bluetooth: hci0: command 0x041b tx timeout [ 74.336169][ T4301] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.385563][ T4301] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.525137][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.534005][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.553059][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.561737][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.609922][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.623123][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.632168][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.640873][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.667115][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.676993][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.685532][ T1277] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.692609][ T1277] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.700467][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.715546][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.724259][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.733297][ T1277] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.740335][ T1277] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.748601][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.757412][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.772574][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.786615][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.795078][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.812481][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.821363][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.832610][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.842696][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.857756][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.868859][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.880657][ T9] device hsr_slave_0 left promiscuous mode [ 74.887978][ T9] device hsr_slave_1 left promiscuous mode [ 74.894904][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.903084][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.911705][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.919078][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.927020][ T9] device bridge_slave_1 left promiscuous mode [ 74.933839][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.945553][ T9] device bridge_slave_0 left promiscuous mode [ 74.952919][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.967554][ T9] device veth1_macvtap left promiscuous mode [ 74.974508][ T9] device veth0_macvtap left promiscuous mode [ 74.980576][ T9] device veth1_vlan left promiscuous mode [ 74.986538][ T9] device veth0_vlan left promiscuous mode [ 75.106767][ T9] team0 (unregistering): Port device team_slave_1 removed [ 75.119934][ T9] team0 (unregistering): Port device team_slave_0 removed [ 75.132260][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.145540][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.194046][ T9] bond0 (unregistering): Released all slaves [ 75.237637][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.319323][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.326940][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.337734][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.363993][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.373016][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.389863][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.398198][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.406783][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.414585][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.425363][ T4301] device veth0_vlan entered promiscuous mode [ 75.436798][ T4301] device veth1_vlan entered promiscuous mode [ 75.459789][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.468301][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.476585][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.485798][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.495303][ T4301] device veth0_macvtap entered promiscuous mode [ 75.506384][ T4301] device veth1_macvtap entered promiscuous mode [ 75.519651][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.527279][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.535734][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.545482][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.554227][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.572216][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.581479][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.590173][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.599160][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.608995][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.619275][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.632257][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.694038][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.710576][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.719756][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.739831][ T1277] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.749259][ T1277] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.758526][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.843179][ T4313] [ 75.845530][ T4313] ====================================================== [ 75.852539][ T4313] WARNING: possible circular locking dependency detected [ 75.859559][ T4313] syzkaller #0 Not tainted [ 75.863974][ T4313] ------------------------------------------------------ [ 75.870980][ T4313] syz.0.17/4313 is trying to acquire lock: [ 75.876780][ T4313] ffff8880223c5028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 75.887834][ T4313] [ 75.887834][ T4313] but task is already holding lock: [ 75.895186][ T4313] ffffffff8d6d6128 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 75.904838][ T4313] [ 75.904838][ T4313] which lock already depends on the new lock. [ 75.904838][ T4313] [ 75.915229][ T4313] [ 75.915229][ T4313] the existing dependency chain (in reverse order) is: [ 75.924234][ T4313] [ 75.924234][ T4313] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.932217][ T4313] __mutex_lock_common+0x1e5/0x2400 [ 75.937936][ T4313] mutex_lock_nested+0x17/0x20 [ 75.943213][ T4313] rfkill_register+0x2f/0x970 [ 75.948404][ T4313] hci_register_dev+0x459/0x980 [ 75.953767][ T4313] vhci_create_device+0x32e/0x5c0 [ 75.959309][ T4313] vhci_write+0x389/0x440 [ 75.964153][ T4313] vfs_write+0x748/0xd70 [ 75.968909][ T4313] ksys_write+0x153/0x260 [ 75.973750][ T4313] do_syscall_64+0x4c/0xa0 [ 75.978676][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.985081][ T4313] [ 75.985081][ T4313] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.992894][ T4313] __mutex_lock_common+0x1e5/0x2400 [ 75.998609][ T4313] mutex_lock_nested+0x17/0x20 [ 76.003886][ T4313] vhci_send_frame+0x88/0x100 [ 76.009114][ T4313] hci_send_frame+0x1a9/0x2e0 [ 76.014309][ T4313] hci_tx_work+0x9b5/0x16d0 [ 76.019334][ T4313] process_one_work+0x867/0xff0 [ 76.024695][ T4313] worker_thread+0xad7/0x12a0 [ 76.029882][ T4313] kthread+0x42e/0x520 [ 76.034458][ T4313] ret_from_fork+0x1f/0x30 [ 76.039392][ T4313] [ 76.039392][ T4313] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 76.048577][ T4313] __flush_work+0x116/0x210 [ 76.053587][ T4313] hci_dev_do_close+0x201/0x1020 [ 76.059026][ T4313] hci_unregister_dev+0x2eb/0x590 [ 76.064552][ T4313] vhci_release+0x73/0xc0 [ 76.069378][ T4313] __fput+0x212/0x8c0 [ 76.073860][ T4313] task_work_run+0x125/0x1a0 [ 76.078949][ T4313] do_exit+0x635/0x2110 [ 76.083604][ T4313] do_group_exit+0x12c/0x2f0 [ 76.088689][ T4313] get_signal+0x7eb/0x12e0 [ 76.093603][ T4313] arch_do_signal_or_restart+0xe6/0x12a0 [ 76.099735][ T4313] exit_to_user_mode_loop+0x9e/0x130 [ 76.105521][ T4313] exit_to_user_mode_prepare+0xee/0x180 [ 76.111566][ T4313] syscall_exit_to_user_mode+0x16/0x40 [ 76.117525][ T4313] do_syscall_64+0x58/0xa0 [ 76.122441][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.128840][ T4313] [ 76.128840][ T4313] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 76.136463][ T4313] __mutex_lock_common+0x1e5/0x2400 [ 76.142163][ T4313] mutex_lock_nested+0x17/0x20 [ 76.147425][ T4313] bg_scan_update+0x44/0x3b0 [ 76.152517][ T4313] process_one_work+0x867/0xff0 [ 76.157866][ T4313] worker_thread+0xad7/0x12a0 [ 76.163039][ T4313] kthread+0x42e/0x520 [ 76.167606][ T4313] ret_from_fork+0x1f/0x30 [ 76.172523][ T4313] [ 76.172523][ T4313] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 76.182312][ T4313] __lock_acquire+0x2c66/0x7b50 [ 76.187664][ T4313] lock_acquire+0x19e/0x400 [ 76.192666][ T4313] __flush_work+0x116/0x210 [ 76.197667][ T4313] __cancel_work_timer+0x3f4/0x560 [ 76.203277][ T4313] hci_request_cancel_all+0xcc/0x300 [ 76.209063][ T4313] hci_dev_do_close+0x4e/0x1020 [ 76.214410][ T4313] hci_rfkill_set_block+0x101/0x180 [ 76.220111][ T4313] rfkill_set_block+0x1c1/0x3c0 [ 76.225463][ T4313] rfkill_fop_write+0x453/0x560 [ 76.230811][ T4313] vfs_write+0x304/0xd70 [ 76.235552][ T4313] ksys_write+0x153/0x260 [ 76.240379][ T4313] do_syscall_64+0x4c/0xa0 [ 76.245295][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.251687][ T4313] [ 76.251687][ T4313] other info that might help us debug this: [ 76.251687][ T4313] [ 76.261889][ T4313] Chain exists of: [ 76.261889][ T4313] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 76.261889][ T4313] [ 76.277588][ T4313] Possible unsafe locking scenario: [ 76.277588][ T4313] [ 76.285012][ T4313] CPU0 CPU1 [ 76.290356][ T4313] ---- ---- [ 76.295697][ T4313] lock(rfkill_global_mutex); [ 76.300454][ T4313] lock(&data->open_mutex); [ 76.307537][ T4313] lock(rfkill_global_mutex); [ 76.314793][ T4313] lock((work_completion)(&hdev->bg_scan_update)); [ 76.321355][ T4313] [ 76.321355][ T4313] *** DEADLOCK *** [ 76.321355][ T4313] [ 76.329480][ T4313] 1 lock held by syz.0.17/4313: [ 76.334304][ T4313] #0: ffffffff8d6d6128 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.344393][ T4313] [ 76.344393][ T4313] stack backtrace: [ 76.350267][ T4313] CPU: 1 PID: 4313 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.357440][ T4313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 76.367487][ T4313] Call Trace: [ 76.370747][ T4313] [ 76.373660][ T4313] dump_stack_lvl+0x188/0x250 [ 76.378321][ T4313] ? load_image+0x410/0x410 [ 76.382805][ T4313] ? show_regs_print_info+0x20/0x20 [ 76.387984][ T4313] ? print_circular_bug+0x12b/0x1a0 [ 76.393161][ T4313] check_noncircular+0x296/0x330 [ 76.398076][ T4313] ? look_up_lock_class+0x71/0x110 [ 76.403167][ T4313] ? add_chain_block+0x9b0/0x9b0 [ 76.408082][ T4313] ? lockdep_lock+0xf1/0x1f0 [ 76.412651][ T4313] ? __lock_acquire+0x1305/0x7b50 [ 76.417656][ T4313] ? mark_lock+0x94/0x320 [ 76.421963][ T4313] ? _find_first_zero_bit+0xd1/0xf0 [ 76.427143][ T4313] __lock_acquire+0x2c66/0x7b50 [ 76.431979][ T4313] ? verify_lock_unused+0x140/0x140 [ 76.437162][ T4313] ? verify_lock_unused+0x140/0x140 [ 76.442343][ T4313] lock_acquire+0x19e/0x400 [ 76.446825][ T4313] ? __flush_work+0xfa/0x210 [ 76.451391][ T4313] ? __lock_acquire+0x7b50/0x7b50 [ 76.456483][ T4313] ? read_lock_is_recursive+0x10/0x10 [ 76.461837][ T4313] ? start_flush_work+0x784/0x830 [ 76.466840][ T4313] __flush_work+0x116/0x210 [ 76.471319][ T4313] ? __flush_work+0xfa/0x210 [ 76.475887][ T4313] ? flush_work+0x20/0x20 [ 76.480194][ T4313] ? try_to_grab_pending+0xfb/0x820 [ 76.485374][ T4313] ? mark_lock+0x94/0x320 [ 76.489696][ T4313] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 76.495659][ T4313] ? lock_chain_count+0x20/0x20 [ 76.500498][ T4313] ? mark_lock+0x94/0x320 [ 76.504808][ T4313] ? __cancel_work_timer+0x36a/0x560 [ 76.510071][ T4313] __cancel_work_timer+0x3f4/0x560 [ 76.515162][ T4313] ? cancel_work_sync+0x20/0x20 [ 76.520024][ T4313] ? __cancel_work+0x1f9/0x2e0 [ 76.524767][ T4313] ? lockdep_hardirqs_on+0x94/0x140 [ 76.530032][ T4313] ? __cancel_work+0x27b/0x2e0 [ 76.534780][ T4313] ? cancel_work+0x20/0x20 [ 76.539177][ T4313] hci_request_cancel_all+0xcc/0x300 [ 76.544452][ T4313] hci_dev_do_close+0x4e/0x1020 [ 76.549284][ T4313] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 76.555157][ T4313] ? _raw_spin_unlock+0x40/0x40 [ 76.559989][ T4313] hci_rfkill_set_block+0x101/0x180 [ 76.565170][ T4313] ? rcu_lock_release+0x20/0x20 [ 76.570003][ T4313] rfkill_set_block+0x1c1/0x3c0 [ 76.574837][ T4313] rfkill_fop_write+0x453/0x560 [ 76.579669][ T4313] ? rfkill_fop_read+0x560/0x560 [ 76.584587][ T4313] ? common_file_perm+0x110/0x1c0 [ 76.589592][ T4313] ? fsnotify_perm+0x5d/0x560 [ 76.594275][ T4313] ? security_file_permission+0x75/0xa0 [ 76.599800][ T4313] ? rfkill_fop_read+0x560/0x560 [ 76.604806][ T4313] vfs_write+0x304/0xd70 [ 76.609032][ T4313] ? file_end_write+0x250/0x250 [ 76.613863][ T4313] ? __context_tracking_exit+0x4c/0x80 [ 76.619306][ T4313] ? __fdget_pos+0x1e2/0x370 [ 76.623875][ T4313] ksys_write+0x153/0x260 [ 76.628184][ T4313] ? __ia32_sys_read+0x80/0x80 [ 76.632930][ T4313] ? lockdep_hardirqs_on+0x94/0x140 [ 76.638109][ T4313] do_syscall_64+0x4c/0xa0 [ 76.642503][ T4313] ? clear_bhb_loop+0x30/0x80 [ 76.647160][ T4313] ? clear_bhb_loop+0x30/0x80 [ 76.651815][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.657700][ T4313] RIP: 0033:0x7febf6ba2159 [ 76.662097][ T4313] 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 [ 76.681683][ T4313] RSP: 002b:00007ffff80b4d58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.690074][ T4313] RAX: ffffffffffffffda RBX: 00007febf6e29fa0 RCX: 00007febf6ba2159 [ 76.698025][ T4313] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 76.705978][ T4313] RBP: 00007febf6c3903b R08: 0000000000000000 R09: 0000000000000000 [ 76.713951][ T4313] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.721903][ T4313] R13: 00007febf6e29fac R14: 00007febf6e29fa0 R15: 00007febf6e29fa0 [ 76.729864][ T4313] [ 76.744934][ T4277] Bluetooth: hci0: command 0x040f tx timeout