Warning: Permanently added '10.128.1.100' (ED25519) to the list of known hosts. 2025/08/16 05:18:45 ignoring optional flag "sandboxArg"="0" 2025/08/16 05:18:47 parsed 1 programs [ 68.391448][ T4190] cgroup: Unknown subsys name 'net' [ 68.531991][ T4190] cgroup: Unknown subsys name 'rlimit' [ 69.730223][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.489843][ T1432] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.497645][ T1432] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.469431][ T767] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.496585][ T767] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.497121][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.505549][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.514403][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.531539][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.224393][ T4276] chnl_net:caif_netlink_parms(): no params data found [ 73.262658][ T4276] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.270476][ T4276] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.278502][ T4276] device bridge_slave_0 entered promiscuous mode [ 73.287356][ T4276] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.294545][ T4276] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.302569][ T4276] device bridge_slave_1 entered promiscuous mode [ 73.324446][ T4276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.335454][ T4276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.357329][ T4276] team0: Port device team_slave_0 added [ 73.364608][ T4276] team0: Port device team_slave_1 added [ 73.380337][ T4276] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.387536][ T4276] 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. [ 73.414184][ T4276] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.427180][ T4276] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.434996][ T4276] 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. [ 73.463082][ T4276] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.490575][ T4276] device hsr_slave_0 entered promiscuous mode [ 73.498103][ T4276] device hsr_slave_1 entered promiscuous mode [ 73.596996][ T4276] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.608466][ T4276] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.620384][ T4276] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.629921][ T4276] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.713052][ T4276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.749028][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.763238][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.773063][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.783690][ T4276] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.794614][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.804029][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.814808][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.824846][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.834551][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.846604][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.855427][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.864768][ T3062] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.872211][ T3062] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.908072][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.918400][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.929532][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.945912][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.959404][ T4276] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.971254][ T4276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.981010][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.088823][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.096815][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.109354][ T4276] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.147632][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.166857][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.175140][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.183133][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.195339][ T4276] device veth0_vlan entered promiscuous mode [ 74.220026][ T4276] device veth1_vlan entered promiscuous mode [ 74.237903][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.245859][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.254685][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.265342][ T4276] device veth0_macvtap entered promiscuous mode [ 74.278901][ T4276] device veth1_macvtap entered promiscuous mode [ 74.309711][ T4276] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.321842][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.339186][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.352682][ T4276] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.364014][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.374756][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.400983][ T4276] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.410561][ T4276] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.421739][ T4276] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.434281][ T4276] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.569045][ T4276] syz-executor (4276) used greatest stack depth: 20128 bytes left 2025/08/16 05:18:55 executed programs: 0 [ 75.062970][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 75.130556][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.138484][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.150485][ T4299] device bridge_slave_0 entered promiscuous mode [ 75.162022][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.172367][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.181183][ T4299] device bridge_slave_1 entered promiscuous mode [ 75.213072][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.226013][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.261646][ T4299] team0: Port device team_slave_0 added [ 75.270935][ T4299] team0: Port device team_slave_1 added [ 75.299206][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.307327][ T4299] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 75.336787][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.352880][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.361301][ T4299] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 75.393043][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.439573][ T4299] device hsr_slave_0 entered promiscuous mode [ 75.449566][ T4299] device hsr_slave_1 entered promiscuous mode [ 75.457372][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.466276][ T4299] Cannot create hsr debugfs directory [ 75.570961][ T4299] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.997515][ T4307] Bluetooth: hci0: command 0x0409 tx timeout [ 78.181929][ T4299] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.077225][ T4271] Bluetooth: hci0: command 0x041b tx timeout [ 79.401664][ T4299] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.452668][ T4299] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.591464][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.600707][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.610339][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.627380][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.691261][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.704496][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.713381][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.730346][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.753438][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.763182][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.773361][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.785321][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.800259][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.823838][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.838360][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.851481][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.862716][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.897934][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.919111][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.944893][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.958802][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.974891][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.998103][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.017596][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.035226][ T154] device hsr_slave_0 left promiscuous mode [ 80.044970][ T154] device hsr_slave_1 left promiscuous mode [ 80.060667][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.069793][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.082819][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.092747][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.102178][ T154] device bridge_slave_1 left promiscuous mode [ 80.111272][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.126176][ T154] device bridge_slave_0 left promiscuous mode [ 80.135265][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.156970][ T154] device veth1_macvtap left promiscuous mode [ 80.164009][ T154] device veth0_macvtap left promiscuous mode [ 80.171152][ T154] device veth1_vlan left promiscuous mode [ 80.178183][ T154] device veth0_vlan left promiscuous mode [ 80.316506][ T154] team0 (unregistering): Port device team_slave_1 removed [ 80.330793][ T154] team0 (unregistering): Port device team_slave_0 removed [ 80.343596][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.358606][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.404646][ T154] bond0 (unregistering): Released all slaves [ 80.459612][ T4299] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 80.470222][ T4299] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.483138][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.493119][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.502058][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.510365][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.519970][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.613881][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.621603][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.632638][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.655131][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.664113][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.682658][ T4299] device veth0_vlan entered promiscuous mode [ 80.690180][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.700312][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.708895][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.717175][ T3062] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.730466][ T4299] device veth1_vlan entered promiscuous mode [ 80.747326][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.755821][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.774913][ T4299] device veth0_macvtap entered promiscuous mode [ 80.785837][ T4299] device veth1_macvtap entered promiscuous mode [ 80.802674][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.810473][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.820124][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.830732][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.841599][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.856088][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.865360][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.874848][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.887991][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.897409][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.906912][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.915701][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.985092][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.006857][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.015678][ T3062] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.026541][ T767] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.035112][ T3062] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.044423][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.163012][ T4268] Bluetooth: hci0: command 0x040f tx timeout [ 81.169797][ T4322] [ 81.172135][ T4322] ====================================================== [ 81.179223][ T4322] WARNING: possible circular locking dependency detected [ 81.186477][ T4322] 5.15.189-syzkaller #0 Not tainted [ 81.191678][ T4322] ------------------------------------------------------ [ 81.198693][ T4322] syz.0.17/4322 is trying to acquire lock: [ 81.204619][ T4322] ffff888028858c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 81.215684][ T4322] [ 81.215684][ T4322] but task is already holding lock: [ 81.223062][ T4322] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 81.232743][ T4322] [ 81.232743][ T4322] which lock already depends on the new lock. [ 81.232743][ T4322] [ 81.243143][ T4322] [ 81.243143][ T4322] the existing dependency chain (in reverse order) is: [ 81.252154][ T4322] [ 81.252154][ T4322] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.260145][ T4322] __mutex_lock_common+0x1eb/0x2390 [ 81.265865][ T4322] mutex_lock_nested+0x17/0x20 [ 81.271143][ T4322] rfkill_register+0x33/0x8a0 [ 81.276338][ T4322] hci_register_dev+0x452/0x970 [ 81.281704][ T4322] vhci_create_device+0x32c/0x5c0 [ 81.287254][ T4322] vhci_write+0x391/0x450 [ 81.292102][ T4322] vfs_write+0x712/0xd00 [ 81.296853][ T4322] ksys_write+0x14d/0x250 [ 81.301715][ T4322] do_syscall_64+0x4c/0xa0 [ 81.306655][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.313104][ T4322] [ 81.313104][ T4322] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.321010][ T4322] __mutex_lock_common+0x1eb/0x2390 [ 81.326727][ T4322] mutex_lock_nested+0x17/0x20 [ 81.332118][ T4322] vhci_send_frame+0x88/0x100 [ 81.337324][ T4322] hci_send_frame+0x1a9/0x2e0 [ 81.342505][ T4322] hci_tx_work+0x9f9/0x1710 [ 81.347600][ T4322] process_one_work+0x863/0x1000 [ 81.353050][ T4322] worker_thread+0xaa8/0x12a0 [ 81.358318][ T4322] kthread+0x436/0x520 [ 81.362983][ T4322] ret_from_fork+0x1f/0x30 [ 81.368599][ T4322] [ 81.368599][ T4322] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.377889][ T4322] __flush_work+0xdd/0x1b0 [ 81.383142][ T4322] hci_dev_do_close+0x1e7/0x1030 [ 81.388687][ T4322] hci_unregister_dev+0x2d7/0x580 [ 81.394235][ T4322] vhci_release+0x73/0xc0 [ 81.399159][ T4322] __fput+0x234/0x930 [ 81.403842][ T4322] task_work_run+0x125/0x1a0 [ 81.409159][ T4322] do_exit+0x61e/0x20a0 [ 81.415012][ T4322] do_group_exit+0x12e/0x300 [ 81.421915][ T4322] get_signal+0x6ca/0x12c0 [ 81.429889][ T4322] arch_do_signal_or_restart+0xc1/0x1300 [ 81.438078][ T4322] exit_to_user_mode_loop+0x9e/0x130 [ 81.444550][ T4322] exit_to_user_mode_prepare+0xb1/0x140 [ 81.452243][ T4322] syscall_exit_to_user_mode+0x16/0x40 [ 81.459131][ T4322] do_syscall_64+0x58/0xa0 [ 81.466214][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.473446][ T4322] [ 81.473446][ T4322] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.482494][ T4322] __mutex_lock_common+0x1eb/0x2390 [ 81.488485][ T4322] mutex_lock_nested+0x17/0x20 [ 81.494559][ T4322] bg_scan_update+0x44/0x3b0 [ 81.500642][ T4322] process_one_work+0x863/0x1000 [ 81.506381][ T4322] worker_thread+0xaa8/0x12a0 [ 81.511801][ T4322] kthread+0x436/0x520 [ 81.516782][ T4322] ret_from_fork+0x1f/0x30 [ 81.521809][ T4322] [ 81.521809][ T4322] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.533053][ T4322] __lock_acquire+0x2c33/0x7c60 [ 81.538440][ T4322] lock_acquire+0x197/0x3f0 [ 81.544631][ T4322] __flush_work+0xdd/0x1b0 [ 81.552443][ T4322] __cancel_work_timer+0x3ac/0x520 [ 81.558565][ T4322] hci_request_cancel_all+0xcc/0x300 [ 81.565244][ T4322] hci_dev_do_close+0x4e/0x1030 [ 81.570607][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 81.576410][ T4322] rfkill_set_block+0x1c6/0x420 [ 81.581789][ T4322] rfkill_fop_write+0x458/0x560 [ 81.587345][ T4322] vfs_write+0x300/0xd00 [ 81.592242][ T4322] ksys_write+0x14d/0x250 [ 81.597090][ T4322] do_syscall_64+0x4c/0xa0 [ 81.602013][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.608414][ T4322] [ 81.608414][ T4322] other info that might help us debug this: [ 81.608414][ T4322] [ 81.618912][ T4322] Chain exists of: [ 81.618912][ T4322] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 81.618912][ T4322] [ 81.635538][ T4322] Possible unsafe locking scenario: [ 81.635538][ T4322] [ 81.643975][ T4322] CPU0 CPU1 [ 81.650480][ T4322] ---- ---- [ 81.656540][ T4322] lock(rfkill_global_mutex); [ 81.661685][ T4322] lock(&data->open_mutex); [ 81.669114][ T4322] lock(rfkill_global_mutex); [ 81.676655][ T4322] lock((work_completion)(&hdev->bg_scan_update)); [ 81.683252][ T4322] [ 81.683252][ T4322] *** DEADLOCK *** [ 81.683252][ T4322] [ 81.691746][ T4322] 1 lock held by syz.0.17/4322: [ 81.696573][ T4322] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 81.706700][ T4322] [ 81.706700][ T4322] stack backtrace: [ 81.712588][ T4322] CPU: 1 PID: 4322 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 81.720736][ T4322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 81.731755][ T4322] Call Trace: [ 81.735257][ T4322] [ 81.738460][ T4322] dump_stack_lvl+0x168/0x230 [ 81.743775][ T4322] ? load_image+0x3b0/0x3b0 [ 81.748303][ T4322] ? show_regs_print_info+0x20/0x20 [ 81.754692][ T4322] ? print_circular_bug+0x12b/0x1a0 [ 81.759970][ T4322] check_noncircular+0x274/0x310 [ 81.765201][ T4322] ? add_chain_block+0x940/0x940 [ 81.771024][ T4322] ? lockdep_lock+0xdc/0x1e0 [ 81.775647][ T4322] ? __lock_acquire+0x12d9/0x7c60 [ 81.780757][ T4322] ? lockdep_lock+0x1e0/0x1e0 [ 81.786481][ T4322] ? mark_lock+0x94/0x320 [ 81.790887][ T4322] __lock_acquire+0x2c33/0x7c60 [ 81.796859][ T4322] ? verify_lock_unused+0x140/0x140 [ 81.805095][ T4322] ? verify_lock_unused+0x140/0x140 [ 81.810658][ T4322] lock_acquire+0x197/0x3f0 [ 81.816078][ T4322] ? __flush_work+0xc1/0x1b0 [ 81.821892][ T4322] ? __lock_acquire+0x7c60/0x7c60 [ 81.828030][ T4322] ? read_lock_is_recursive+0x10/0x10 [ 81.834621][ T4322] ? start_flush_work+0x776/0x820 [ 81.840096][ T4322] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.846167][ T4322] ? _raw_spin_unlock+0x40/0x40 [ 81.852054][ T4322] __flush_work+0xdd/0x1b0 [ 81.857489][ T4322] ? __flush_work+0xc1/0x1b0 [ 81.862181][ T4322] ? flush_work+0x20/0x20 [ 81.867207][ T4322] ? try_to_grab_pending+0xf3/0x7e0 [ 81.872570][ T4322] ? lockdep_hardirqs_off+0x70/0x100 [ 81.878109][ T4322] ? mark_lock+0x94/0x320 [ 81.883472][ T4322] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 81.889527][ T4322] ? lock_chain_count+0x20/0x20 [ 81.894536][ T4322] ? mark_lock+0x94/0x320 [ 81.898976][ T4322] ? __cancel_work_timer+0x331/0x520 [ 81.904386][ T4322] __cancel_work_timer+0x3ac/0x520 [ 81.910349][ T4322] ? cancel_work_sync+0x20/0x20 [ 81.915184][ T4322] ? __cancel_work+0x1f4/0x2d0 [ 81.920057][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 81.925393][ T4322] ? __cancel_work+0x26f/0x2d0 [ 81.930868][ T4322] ? cancel_work+0x20/0x20 [ 81.935284][ T4322] ? lock_chain_count+0x20/0x20 [ 81.940232][ T4322] hci_request_cancel_all+0xcc/0x300 [ 81.946678][ T4322] hci_dev_do_close+0x4e/0x1030 [ 81.953283][ T4322] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.959479][ T4322] ? _raw_spin_unlock+0x40/0x40 [ 81.965831][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 81.971291][ T4322] ? rcu_lock_release+0x20/0x20 [ 81.976252][ T4322] rfkill_set_block+0x1c6/0x420 [ 81.981378][ T4322] rfkill_fop_write+0x458/0x560 [ 81.986222][ T4322] ? verify_lock_unused+0x140/0x140 [ 81.991404][ T4322] ? rfkill_fop_read+0x4b0/0x4b0 [ 81.998194][ T4322] ? common_file_perm+0x150/0x1c0 [ 82.003772][ T4322] ? fsnotify_perm+0x5d/0x560 [ 82.010461][ T4322] ? security_file_permission+0x75/0xa0 [ 82.018100][ T4322] ? rfkill_fop_read+0x4b0/0x4b0 [ 82.023307][ T4322] vfs_write+0x300/0xd00 [ 82.027902][ T4322] ? file_end_write+0x250/0x250 [ 82.033371][ T4322] ? __context_tracking_exit+0x4c/0x80 [ 82.038832][ T4322] ? __lock_acquire+0x7c60/0x7c60 [ 82.043901][ T4322] ? __fdget_pos+0x1e2/0x370 [ 82.048533][ T4322] ksys_write+0x14d/0x250 [ 82.053002][ T4322] ? __ia32_sys_read+0x80/0x80 [ 82.057762][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 82.063385][ T4322] do_syscall_64+0x4c/0xa0 [ 82.067929][ T4322] ? clear_bhb_loop+0x30/0x80 [ 82.072604][ T4322] ? clear_bhb_loop+0x30/0x80 [ 82.077284][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.083189][ T4322] RIP: 0033:0x7f3b48a1cbe9 [ 82.087782][ T4322] 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 [ 82.107918][ T4322] RSP: 002b:00007ffe88753fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.116966][ T4322] RAX: ffffffffffffffda RBX: 00007f3b48c43fa0 RCX: 00007f3b48a1cbe9 [ 82.126257][ T4322] RDX: 0000000000000008 RSI: 0000200000000180 RDI: 0000000000000003 [ 82.134359][ T4322] RBP: 00007f3b48a9fe19 R08: 0000000000000000 R09: 0000000000000000 [ 82.143560][ T4322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.152246][ T4322] R13: 00007f3b48c43fa0 R14: 00007f3b48c43fa0 R15: 0000000000000003 [ 82.160837][ T4322]