Warning: Permanently added '10.128.1.48' (ED25519) to the list of known hosts. 2026/08/21 15:36:34 parsed 1 programs 2026/08/21 15:36:34 serving rpc on tcp://44299 [ 66.655703][ T4197] cgroup: Unknown subsys name 'net' [ 66.768742][ T4197] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.292796][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.360499][ T4230] chnl_net:caif_netlink_parms(): no params data found [ 70.402427][ T4230] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.410087][ T4230] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.418059][ T4230] device bridge_slave_0 entered promiscuous mode [ 70.426708][ T4230] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.434153][ T4230] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.442082][ T4230] device bridge_slave_1 entered promiscuous mode [ 70.465788][ T4230] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.476531][ T4230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.496694][ T4230] team0: Port device team_slave_0 added [ 70.504287][ T4230] team0: Port device team_slave_1 added [ 70.519809][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.526990][ T4230] 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. [ 70.553307][ T4230] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.567506][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.574583][ T4230] 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. [ 70.600904][ T4230] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.640564][ T4230] device hsr_slave_0 entered promiscuous mode [ 70.647549][ T4230] device hsr_slave_1 entered promiscuous mode [ 70.787047][ T4230] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.799860][ T4230] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.810414][ T4230] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.820969][ T4230] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.851190][ T4230] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.858507][ T4230] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.866756][ T4230] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.873887][ T4230] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.937581][ T4230] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.955334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.967715][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.977014][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.991404][ T4230] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.005928][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.015579][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.022717][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.037180][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.046349][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.053472][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.077589][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.086943][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.116228][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.126496][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.136612][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.148224][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.287940][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.297458][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.312734][ T4230] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.338600][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.348376][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.366332][ T1433] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.372833][ T1433] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.389524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.400132][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.409305][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.418651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.429836][ T4230] device veth0_vlan entered promiscuous mode [ 71.444432][ T4230] device veth1_vlan entered promiscuous mode [ 71.470032][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.478499][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.488368][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.497470][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.509935][ T4230] device veth0_macvtap entered promiscuous mode [ 71.521187][ T4230] device veth1_macvtap entered promiscuous mode [ 71.539871][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.550501][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.559375][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.568563][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.577619][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.588869][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.597774][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.607636][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.620945][ T4230] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.630485][ T4230] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.642378][ T4230] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.651615][ T4230] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.079468][ T3082] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.581059][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.591876][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.601574][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.620791][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.629015][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.638142][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/08/21 15:36:43 executed programs: 0 [ 73.795461][ T4288] chnl_net:caif_netlink_parms(): no params data found [ 73.835681][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.842829][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.850956][ T4288] device bridge_slave_0 entered promiscuous mode [ 73.859099][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.866316][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.874995][ T4288] device bridge_slave_1 entered promiscuous mode [ 73.893815][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.905334][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.926076][ T4288] team0: Port device team_slave_0 added [ 73.934010][ T4288] team0: Port device team_slave_1 added [ 73.949823][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.956931][ T4288] 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. [ 73.983892][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.996685][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.004223][ T4288] 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. [ 74.031163][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.061462][ T4288] device hsr_slave_0 entered promiscuous mode [ 74.068912][ T4288] device hsr_slave_1 entered promiscuous mode [ 74.075754][ T4288] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.083962][ T4288] Cannot create hsr debugfs directory [ 74.838533][ T3082] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.753937][ T4237] Bluetooth: hci0: command 0x0409 tx timeout [ 77.048369][ T3082] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.099800][ T3082] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.833551][ T4316] Bluetooth: hci0: command 0x041b tx timeout [ 77.912769][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.924304][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.934306][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.959053][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.024639][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.037570][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.045584][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.057447][ T4288] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.070864][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.080838][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.089804][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.096900][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.107269][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.131175][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.139943][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.150385][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.157502][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.167740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.180359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.192322][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.201781][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.211589][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.240962][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.251059][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.261874][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.270862][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.284981][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.293766][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.305657][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.419481][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.428268][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.440846][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.471114][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.481271][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.500787][ T3082] device hsr_slave_0 left promiscuous mode [ 78.507248][ T3082] device hsr_slave_1 left promiscuous mode [ 78.514620][ T3082] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.522065][ T3082] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.530939][ T3082] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.538388][ T3082] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.546851][ T3082] device bridge_slave_1 left promiscuous mode [ 78.554318][ T3082] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.567170][ T3082] device bridge_slave_0 left promiscuous mode [ 78.574298][ T3082] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.591239][ T3082] device veth1_macvtap left promiscuous mode [ 78.597619][ T3082] device veth0_macvtap left promiscuous mode [ 78.604553][ T3082] device veth1_vlan left promiscuous mode [ 78.610431][ T3082] device veth0_vlan left promiscuous mode [ 78.765107][ T3082] team0 (unregistering): Port device team_slave_1 removed [ 78.779160][ T3082] team0 (unregistering): Port device team_slave_0 removed [ 78.791672][ T3082] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.808274][ T3082] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.858625][ T3082] bond0 (unregistering): Released all slaves [ 78.936017][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.945711][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.958933][ T4288] device veth0_vlan entered promiscuous mode [ 78.967294][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.975777][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.988650][ T4288] device veth1_vlan entered promiscuous mode [ 79.016421][ T4288] device veth0_macvtap entered promiscuous mode [ 79.025572][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.035706][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.044005][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.052385][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.061564][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.073152][ T4288] device veth1_macvtap entered promiscuous mode [ 79.105040][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.112417][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.121878][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.135640][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.154344][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.164139][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.175674][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.184789][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.194273][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.203964][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.259037][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.270370][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.279178][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.308896][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.317446][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.326578][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.495143][ T4341] [ 79.497530][ T4341] ====================================================== [ 79.504566][ T4341] WARNING: possible circular locking dependency detected [ 79.511601][ T4341] syzkaller #0 Not tainted [ 79.516032][ T4341] ------------------------------------------------------ [ 79.523053][ T4341] syz.0.17/4341 is trying to acquire lock: [ 79.528867][ T4341] ffff888068649028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.539936][ T4341] [ 79.539936][ T4341] but task is already holding lock: [ 79.547303][ T4341] ffffffff8d6d67e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 79.556985][ T4341] [ 79.556985][ T4341] which lock already depends on the new lock. [ 79.556985][ T4341] [ 79.567399][ T4341] [ 79.567399][ T4341] the existing dependency chain (in reverse order) is: [ 79.576511][ T4341] [ 79.576511][ T4341] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.584526][ T4341] __mutex_lock_common+0x1e5/0x2400 [ 79.590270][ T4341] mutex_lock_nested+0x17/0x20 [ 79.595570][ T4341] rfkill_register+0x2f/0x970 [ 79.600786][ T4341] hci_register_dev+0x459/0x980 [ 79.606168][ T4341] vhci_create_device+0x32e/0x5c0 [ 79.611738][ T4341] vhci_write+0x389/0x440 [ 79.616611][ T4341] vfs_write+0x748/0xd70 [ 79.621401][ T4341] ksys_write+0x153/0x260 [ 79.626258][ T4341] do_syscall_64+0x4c/0xa0 [ 79.631202][ T4341] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.637636][ T4341] [ 79.637636][ T4341] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 79.645481][ T4341] __mutex_lock_common+0x1e5/0x2400 [ 79.651213][ T4341] mutex_lock_nested+0x17/0x20 [ 79.656511][ T4341] vhci_send_frame+0x88/0x100 [ 79.661728][ T4341] hci_send_frame+0x1a9/0x2e0 [ 79.666935][ T4341] hci_tx_work+0x9b5/0x16d0 [ 79.671978][ T4341] process_one_work+0x867/0xff0 [ 79.677375][ T4341] worker_thread+0xad7/0x12a0 [ 79.682583][ T4341] kthread+0x42e/0x520 [ 79.687180][ T4341] ret_from_fork+0x1f/0x30 [ 79.692139][ T4341] [ 79.692139][ T4341] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 79.701358][ T4341] __flush_work+0x116/0x210 [ 79.706382][ T4341] hci_dev_do_close+0x201/0x1020 [ 79.711834][ T4341] hci_unregister_dev+0x2eb/0x590 [ 79.717376][ T4341] vhci_release+0x73/0xc0 [ 79.722222][ T4341] __fput+0x212/0x8c0 [ 79.726724][ T4341] task_work_run+0x125/0x1a0 [ 79.731833][ T4341] do_exit+0x635/0x2110 [ 79.736509][ T4341] do_group_exit+0x12c/0x2f0 [ 79.741616][ T4341] get_signal+0x7eb/0x12e0 [ 79.746649][ T4341] arch_do_signal_or_restart+0xe6/0x12a0 [ 79.752802][ T4341] exit_to_user_mode_loop+0x9e/0x130 [ 79.758603][ T4341] exit_to_user_mode_prepare+0xee/0x180 [ 79.764756][ T4341] syscall_exit_to_user_mode+0x16/0x40 [ 79.770734][ T4341] do_syscall_64+0x58/0xa0 [ 79.775669][ T4341] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.782080][ T4341] [ 79.782080][ T4341] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 79.789728][ T4341] __mutex_lock_common+0x1e5/0x2400 [ 79.795456][ T4341] mutex_lock_nested+0x17/0x20 [ 79.800739][ T4341] bg_scan_update+0x44/0x3b0 [ 79.805852][ T4341] process_one_work+0x867/0xff0 [ 79.811227][ T4341] worker_thread+0xad7/0x12a0 [ 79.816421][ T4341] kthread+0x42e/0x520 [ 79.821014][ T4341] ret_from_fork+0x1f/0x30 [ 79.825949][ T4341] [ 79.825949][ T4341] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.835770][ T4341] __lock_acquire+0x2c66/0x7b50 [ 79.841159][ T4341] lock_acquire+0x19e/0x400 [ 79.846180][ T4341] __flush_work+0x116/0x210 [ 79.851203][ T4341] __cancel_work_timer+0x3f4/0x560 [ 79.856834][ T4341] hci_request_cancel_all+0xcc/0x300 [ 79.862636][ T4341] hci_dev_do_close+0x4e/0x1020 [ 79.868010][ T4341] hci_rfkill_set_block+0x101/0x180 [ 79.873727][ T4341] rfkill_set_block+0x1c1/0x3c0 [ 79.879099][ T4341] rfkill_fop_write+0x453/0x560 [ 79.884466][ T4341] vfs_write+0x304/0xd70 [ 79.889222][ T4341] ksys_write+0x153/0x260 [ 79.894080][ T4341] do_syscall_64+0x4c/0xa0 [ 79.899011][ T4341] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.905441][ T4341] [ 79.905441][ T4341] other info that might help us debug this: [ 79.905441][ T4341] [ 79.915662][ T4341] Chain exists of: [ 79.915662][ T4341] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.915662][ T4341] [ 79.931388][ T4341] Possible unsafe locking scenario: [ 79.931388][ T4341] [ 79.938828][ T4341] CPU0 CPU1 [ 79.944183][ T4341] ---- ---- [ 79.949541][ T4341] lock(rfkill_global_mutex); [ 79.954299][ T4341] lock(&data->open_mutex); [ 79.961404][ T4341] lock(rfkill_global_mutex); [ 79.968680][ T4341] lock((work_completion)(&hdev->bg_scan_update)); [ 79.975270][ T4341] [ 79.975270][ T4341] *** DEADLOCK *** [ 79.975270][ T4341] [ 79.983423][ T4341] 1 lock held by syz.0.17/4341: [ 79.988275][ T4341] #0: ffffffff8d6d67e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 79.998377][ T4341] [ 79.998377][ T4341] stack backtrace: [ 80.004257][ T4341] CPU: 0 PID: 4341 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.011544][ T4341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 80.021600][ T4341] Call Trace: [ 80.024879][ T4341] [ 80.027902][ T4341] dump_stack_lvl+0x188/0x250 [ 80.032592][ T4341] ? load_image+0x410/0x410 [ 80.037108][ T4341] ? show_regs_print_info+0x20/0x20 [ 80.042334][ T4341] ? print_circular_bug+0x12b/0x1a0 [ 80.047541][ T4341] check_noncircular+0x296/0x330 [ 80.052481][ T4341] ? look_up_lock_class+0x71/0x110 [ 80.057598][ T4341] ? add_chain_block+0x9b0/0x9b0 [ 80.062534][ T4341] ? lockdep_lock+0xf1/0x1f0 [ 80.067125][ T4341] ? __lock_acquire+0x1305/0x7b50 [ 80.072583][ T4341] ? mark_lock+0x94/0x320 [ 80.076905][ T4341] ? _find_first_zero_bit+0xd1/0xf0 [ 80.082104][ T4341] __lock_acquire+0x2c66/0x7b50 [ 80.086957][ T4341] ? verify_lock_unused+0x140/0x140 [ 80.092159][ T4341] ? verify_lock_unused+0x140/0x140 [ 80.097362][ T4341] lock_acquire+0x19e/0x400 [ 80.101882][ T4341] ? __flush_work+0xfa/0x210 [ 80.106468][ T4341] ? __lock_acquire+0x7b50/0x7b50 [ 80.111494][ T4341] ? read_lock_is_recursive+0x10/0x10 [ 80.116865][ T4341] ? start_flush_work+0x784/0x830 [ 80.121890][ T4341] __flush_work+0x116/0x210 [ 80.126388][ T4341] ? __flush_work+0xfa/0x210 [ 80.130980][ T4341] ? flush_work+0x20/0x20 [ 80.135305][ T4341] ? try_to_grab_pending+0xfb/0x820 [ 80.140504][ T4341] ? mark_lock+0x94/0x320 [ 80.144829][ T4341] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 80.150896][ T4341] ? lock_chain_count+0x20/0x20 [ 80.155742][ T4341] ? mark_lock+0x94/0x320 [ 80.160065][ T4341] ? __cancel_work_timer+0x36a/0x560 [ 80.165347][ T4341] __cancel_work_timer+0x3f4/0x560 [ 80.170472][ T4341] ? cancel_work_sync+0x20/0x20 [ 80.175404][ T4341] ? __cancel_work+0x1f9/0x2e0 [ 80.180162][ T4341] ? lockdep_hardirqs_on+0x94/0x140 [ 80.185361][ T4341] ? __cancel_work+0x27b/0x2e0 [ 80.190120][ T4341] ? cancel_work+0x20/0x20 [ 80.194535][ T4341] hci_request_cancel_all+0xcc/0x300 [ 80.199827][ T4341] hci_dev_do_close+0x4e/0x1020 [ 80.204676][ T4341] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 80.210574][ T4341] ? _raw_spin_unlock+0x40/0x40 [ 80.215422][ T4341] hci_rfkill_set_block+0x101/0x180 [ 80.220623][ T4341] ? rcu_lock_release+0x20/0x20 [ 80.225475][ T4341] rfkill_set_block+0x1c1/0x3c0 [ 80.230325][ T4341] rfkill_fop_write+0x453/0x560 [ 80.235180][ T4341] ? rfkill_fop_read+0x560/0x560 [ 80.240116][ T4341] ? common_file_perm+0xc0/0x1c0 [ 80.245052][ T4341] ? fsnotify_perm+0x5d/0x560 [ 80.249728][ T4341] ? security_file_permission+0x75/0xa0 [ 80.255268][ T4341] ? rfkill_fop_read+0x560/0x560 [ 80.260204][ T4341] vfs_write+0x304/0xd70 [ 80.264451][ T4341] ? file_end_write+0x250/0x250 [ 80.269299][ T4341] ? __context_tracking_exit+0x4c/0x80 [ 80.274782][ T4341] ? __fdget_pos+0x1e2/0x370 [ 80.279379][ T4341] ksys_write+0x153/0x260 [ 80.283728][ T4341] ? __ia32_sys_read+0x80/0x80 [ 80.288493][ T4341] ? lockdep_hardirqs_on+0x94/0x140 [ 80.293699][ T4341] do_syscall_64+0x4c/0xa0 [ 80.298111][ T4341] ? clear_bhb_loop+0x30/0x80 [ 80.302787][ T4341] ? clear_bhb_loop+0x30/0x80 [ 80.307460][ T4341] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.313352][ T4341] RIP: 0033:0x7fcfac4aa0d9 [ 80.317768][ T4341] 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 [ 80.337372][ T4341] RSP: 002b:00007fff6aeeac58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.345889][ T4341] RAX: ffffffffffffffda RBX: 00007fcfac731fa0 RCX: 00007fcfac4aa0d9 [ 80.353860][ T4341] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 80.361841][ T4341] RBP: 00007fcfac541024 R08: 0000000000000000 R09: 0000000000000000 [ 80.369813][ T4341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.377781][ T4341] R13: 00007fcfac731fac R14: 00007fcfac731fa0 R15: 00007fcfac731fa0 [ 80.385938][ T4341] [ 80.392345][ T23] Bluetooth: hci0: command 0x040f tx timeout