Warning: Permanently added '10.128.1.144' (ED25519) to the list of known hosts. 2026/04/05 04:34:31 parsed 1 programs [ 59.354129][ T4188] cgroup: Unknown subsys name 'net' [ 59.512761][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 61.074522][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 62.696458][ T4204] chnl_net:caif_netlink_parms(): no params data found [ 62.741604][ T4204] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.749195][ T4204] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.757234][ T4204] device bridge_slave_0 entered promiscuous mode [ 62.766734][ T4204] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.773971][ T4204] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.782260][ T4204] device bridge_slave_1 entered promiscuous mode [ 62.803502][ T4204] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.814453][ T4204] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.838210][ T4204] team0: Port device team_slave_0 added [ 62.846223][ T4204] team0: Port device team_slave_1 added [ 62.862404][ T4204] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.869481][ T4204] 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. [ 62.895961][ T4204] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.912011][ T4204] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.919179][ T4204] 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. [ 62.945274][ T4204] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.976498][ T4204] device hsr_slave_0 entered promiscuous mode [ 62.983696][ T4204] device hsr_slave_1 entered promiscuous mode [ 63.072844][ T4204] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.083718][ T4204] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.093151][ T4204] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.102485][ T4204] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.126895][ T4204] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.134033][ T4204] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.142120][ T4204] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.149298][ T4204] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.203781][ T4204] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.222256][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.234539][ T145] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.244585][ T145] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.253187][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.268347][ T4204] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.282000][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.292551][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.299713][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.317386][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.326863][ T145] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.334026][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.361090][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.370837][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.388890][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.397368][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.405796][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.417134][ T4204] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.550424][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.559155][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.572254][ T4204] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.596177][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.619169][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.629984][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.638215][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.649644][ T4204] device veth0_vlan entered promiscuous mode [ 63.663449][ T4204] device veth1_vlan entered promiscuous mode [ 63.690267][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.699831][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.711783][ T4204] device veth0_macvtap entered promiscuous mode [ 63.726277][ T4204] device veth1_macvtap entered promiscuous mode [ 63.748249][ T4204] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.755776][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.764972][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.773650][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.783234][ T1177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.796202][ T4204] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.816199][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.825921][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.840182][ T4204] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.850539][ T4204] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.860782][ T4204] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.870464][ T4204] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.629470][ T156] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.021053][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.030930][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.043241][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.060275][ T145] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.068829][ T145] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.080069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/05 04:34:40 executed programs: 0 [ 66.507260][ T4276] chnl_net:caif_netlink_parms(): no params data found [ 66.545640][ T4276] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.552936][ T4276] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.561376][ T4276] device bridge_slave_0 entered promiscuous mode [ 66.569679][ T4276] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.576928][ T4276] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.584651][ T4276] device bridge_slave_1 entered promiscuous mode [ 66.603079][ T4276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.614266][ T4276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.635699][ T4276] team0: Port device team_slave_0 added [ 66.643441][ T4276] team0: Port device team_slave_1 added [ 66.658621][ T4276] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.665575][ 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. [ 66.692561][ T4276] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.704599][ T4276] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.711600][ 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. [ 66.737985][ T4276] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.768380][ T4276] device hsr_slave_0 entered promiscuous mode [ 66.775421][ T4276] device hsr_slave_1 entered promiscuous mode [ 66.782916][ T4276] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.790891][ T4276] Cannot create hsr debugfs directory [ 67.043744][ T156] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.437613][ T1108] Bluetooth: hci0: command 0x0409 tx timeout [ 69.253328][ T156] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.303679][ T156] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.112636][ T4276] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.122963][ T4276] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.132399][ T4276] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.141866][ T4276] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.199599][ T4276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.212610][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.221117][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.232478][ T4276] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.251741][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.260584][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.270810][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.278080][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.286735][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.307894][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.316939][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.325508][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.332787][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.343155][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.359722][ T156] device hsr_slave_0 left promiscuous mode [ 70.367844][ T156] device hsr_slave_1 left promiscuous mode [ 70.374402][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 70.382232][ T156] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 70.391474][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 70.398996][ T156] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 70.407125][ T156] device bridge_slave_1 left promiscuous mode [ 70.414362][ T156] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.429020][ T156] device bridge_slave_0 left promiscuous mode [ 70.435320][ T156] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.453207][ T156] device veth1_macvtap left promiscuous mode [ 70.459598][ T156] device veth0_macvtap left promiscuous mode [ 70.465824][ T156] device veth1_vlan left promiscuous mode [ 70.473223][ T156] device veth0_vlan left promiscuous mode [ 70.516560][ T4291] Bluetooth: hci0: command 0x041b tx timeout [ 70.630871][ T156] team0 (unregistering): Port device team_slave_1 removed [ 70.643483][ T156] team0 (unregistering): Port device team_slave_0 removed [ 70.655748][ T156] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.673657][ T156] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.726592][ T156] bond0 (unregistering): Released all slaves [ 70.795966][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.811461][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.821694][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.839846][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.856194][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.872375][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.881782][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.891041][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.901592][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.910391][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.921930][ T4276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.021472][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.029079][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.044487][ T4276] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.060871][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.070187][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.094357][ T4276] device veth0_vlan entered promiscuous mode [ 71.103301][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.112078][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.120968][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.129530][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.146274][ T4276] device veth1_vlan entered promiscuous mode [ 71.171793][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.180554][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.189848][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.198874][ T4283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.210772][ T4276] device veth0_macvtap entered promiscuous mode [ 71.221636][ T4276] device veth1_macvtap entered promiscuous mode [ 71.229458][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.239447][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.260960][ T4276] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.272015][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.282471][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.294413][ T4276] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.302545][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.313307][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.325899][ T4276] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.335342][ T4276] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.346190][ T4276] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.355837][ T4276] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.438856][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.456921][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.465168][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.490109][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.497047][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.507918][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.515762][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.525404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.734060][ T4322] [ 71.736456][ T4322] ====================================================== [ 71.743494][ T4322] WARNING: possible circular locking dependency detected [ 71.750616][ T4322] syzkaller #0 Not tainted [ 71.755230][ T4322] ------------------------------------------------------ [ 71.762787][ T4322] syz.0.17/4322 is trying to acquire lock: [ 71.768614][ T4322] ffff88802a194c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 71.779696][ T4322] [ 71.779696][ T4322] but task is already holding lock: [ 71.787080][ T4322] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 71.796777][ T4322] [ 71.796777][ T4322] which lock already depends on the new lock. [ 71.796777][ T4322] [ 71.807288][ T4322] [ 71.807288][ T4322] the existing dependency chain (in reverse order) is: [ 71.816494][ T4322] [ 71.816494][ T4322] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 71.824626][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 71.830465][ T4322] mutex_lock_nested+0x17/0x20 [ 71.835780][ T4322] rfkill_register+0x33/0x8a0 [ 71.841210][ T4322] hci_register_dev+0x452/0x970 [ 71.846817][ T4322] vhci_create_device+0x32c/0x5c0 [ 71.852398][ T4322] vhci_write+0x391/0x450 [ 71.857373][ T4322] vfs_write+0x745/0xd60 [ 71.862153][ T4322] ksys_write+0x152/0x260 [ 71.867071][ T4322] do_syscall_64+0x4c/0xa0 [ 71.872088][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 71.878525][ T4322] [ 71.878525][ T4322] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 71.886595][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 71.892337][ T4322] mutex_lock_nested+0x17/0x20 [ 71.897816][ T4322] vhci_send_frame+0x88/0x100 [ 71.903151][ T4322] hci_send_frame+0x1a9/0x2e0 [ 71.908469][ T4322] hci_tx_work+0x9f9/0x1710 [ 71.913516][ T4322] process_one_work+0x85f/0x1010 [ 71.918999][ T4322] worker_thread+0xaa6/0x1290 [ 71.924229][ T4322] kthread+0x436/0x520 [ 71.929119][ T4322] ret_from_fork+0x1f/0x30 [ 71.934104][ T4322] [ 71.934104][ T4322] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 71.943363][ T4322] __flush_work+0x116/0x210 [ 71.948440][ T4322] hci_dev_do_close+0x1e7/0x1030 [ 71.953924][ T4322] hci_unregister_dev+0x2d7/0x580 [ 71.959475][ T4322] vhci_release+0x73/0xc0 [ 71.964408][ T4322] __fput+0x234/0x930 [ 71.969834][ T4322] task_work_run+0x125/0x1a0 [ 71.975053][ T4322] do_exit+0x626/0x20c0 [ 71.979748][ T4322] do_group_exit+0x12e/0x300 [ 71.984854][ T4322] get_signal+0x6ca/0x12c0 [ 71.989787][ T4322] arch_do_signal_or_restart+0xe7/0x12c0 [ 71.996026][ T4322] exit_to_user_mode_loop+0x9e/0x130 [ 72.001827][ T4322] exit_to_user_mode_prepare+0xee/0x180 [ 72.008159][ T4322] syscall_exit_to_user_mode+0x16/0x40 [ 72.014327][ T4322] do_syscall_64+0x58/0xa0 [ 72.019359][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.025860][ T4322] [ 72.025860][ T4322] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 72.033610][ T4322] __mutex_lock_common+0x1e3/0x2400 [ 72.039461][ T4322] mutex_lock_nested+0x17/0x20 [ 72.044762][ T4322] bg_scan_update+0x44/0x3b0 [ 72.049898][ T4322] process_one_work+0x85f/0x1010 [ 72.055387][ T4322] worker_thread+0xaa6/0x1290 [ 72.060672][ T4322] kthread+0x436/0x520 [ 72.065264][ T4322] ret_from_fork+0x1f/0x30 [ 72.070241][ T4322] [ 72.070241][ T4322] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 72.080163][ T4322] __lock_acquire+0x2c42/0x7d10 [ 72.085914][ T4322] lock_acquire+0x19e/0x400 [ 72.091041][ T4322] __flush_work+0x116/0x210 [ 72.096068][ T4322] __cancel_work_timer+0x3f4/0x560 [ 72.101695][ T4322] hci_request_cancel_all+0xcc/0x300 [ 72.107505][ T4322] hci_dev_do_close+0x4e/0x1030 [ 72.112968][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 72.118687][ T4322] rfkill_set_block+0x1c6/0x420 [ 72.124059][ T4322] rfkill_fop_write+0x452/0x560 [ 72.129521][ T4322] vfs_write+0x30b/0xd60 [ 72.134279][ T4322] ksys_write+0x152/0x260 [ 72.139136][ T4322] do_syscall_64+0x4c/0xa0 [ 72.144065][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.150488][ T4322] [ 72.150488][ T4322] other info that might help us debug this: [ 72.150488][ T4322] [ 72.160803][ T4322] Chain exists of: [ 72.160803][ T4322] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 72.160803][ T4322] [ 72.177054][ T4322] Possible unsafe locking scenario: [ 72.177054][ T4322] [ 72.184525][ T4322] CPU0 CPU1 [ 72.189989][ T4322] ---- ---- [ 72.195594][ T4322] lock(rfkill_global_mutex); [ 72.200386][ T4322] lock(&data->open_mutex); [ 72.207604][ T4322] lock(rfkill_global_mutex); [ 72.215163][ T4322] lock((work_completion)(&hdev->bg_scan_update)); [ 72.221782][ T4322] [ 72.221782][ T4322] *** DEADLOCK *** [ 72.221782][ T4322] [ 72.230042][ T4322] 1 lock held by syz.0.17/4322: [ 72.234903][ T4322] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 72.245103][ T4322] [ 72.245103][ T4322] stack backtrace: [ 72.251079][ T4322] CPU: 0 PID: 4322 Comm: syz.0.17 Not tainted syzkaller #0 [ 72.258309][ T4322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 72.268536][ T4322] Call Trace: [ 72.271815][ T4322] [ 72.274753][ T4322] dump_stack_lvl+0x188/0x250 [ 72.279429][ T4322] ? load_image+0x400/0x400 [ 72.284032][ T4322] ? show_regs_print_info+0x20/0x20 [ 72.289234][ T4322] ? print_circular_bug+0x12b/0x1a0 [ 72.294524][ T4322] check_noncircular+0x296/0x330 [ 72.299477][ T4322] ? look_up_lock_class+0x71/0x110 [ 72.304668][ T4322] ? add_chain_block+0x940/0x940 [ 72.309622][ T4322] ? lockdep_lock+0xf1/0x1f0 [ 72.314232][ T4322] ? __lock_acquire+0x12e8/0x7d10 [ 72.319273][ T4322] ? mark_lock+0x94/0x320 [ 72.323613][ T4322] __lock_acquire+0x2c42/0x7d10 [ 72.328555][ T4322] ? verify_lock_unused+0x140/0x140 [ 72.333927][ T4322] ? verify_lock_unused+0x140/0x140 [ 72.339137][ T4322] ? mark_lock+0x94/0x320 [ 72.343647][ T4322] lock_acquire+0x19e/0x400 [ 72.348147][ T4322] ? __flush_work+0xfa/0x210 [ 72.352831][ T4322] ? __lock_acquire+0x7d10/0x7d10 [ 72.357865][ T4322] ? read_lock_is_recursive+0x10/0x10 [ 72.363248][ T4322] ? start_flush_work+0x776/0x820 [ 72.368271][ T4322] __flush_work+0x116/0x210 [ 72.372862][ T4322] ? __flush_work+0xfa/0x210 [ 72.377460][ T4322] ? flush_work+0x20/0x20 [ 72.381878][ T4322] ? try_to_grab_pending+0xfa/0x7f0 [ 72.387075][ T4322] ? mark_lock+0x94/0x320 [ 72.391410][ T4322] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 72.397389][ T4322] ? lock_chain_count+0x20/0x20 [ 72.402253][ T4322] ? mark_lock+0x94/0x320 [ 72.406578][ T4322] ? __cancel_work_timer+0x36a/0x560 [ 72.411879][ T4322] __cancel_work_timer+0x3f4/0x560 [ 72.416996][ T4322] ? cancel_work_sync+0x20/0x20 [ 72.422136][ T4322] ? __cancel_work+0x1f9/0x2e0 [ 72.427015][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 72.432243][ T4322] ? __cancel_work+0x27b/0x2e0 [ 72.437118][ T4322] ? cancel_work+0x20/0x20 [ 72.441532][ T4322] ? lock_chain_count+0x20/0x20 [ 72.446468][ T4322] hci_request_cancel_all+0xcc/0x300 [ 72.451758][ T4322] hci_dev_do_close+0x4e/0x1030 [ 72.456608][ T4322] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 72.462622][ T4322] ? _raw_spin_unlock+0x40/0x40 [ 72.467499][ T4322] hci_rfkill_set_block+0x10a/0x190 [ 72.472802][ T4322] ? rcu_lock_release+0x20/0x20 [ 72.477682][ T4322] rfkill_set_block+0x1c6/0x420 [ 72.482601][ T4322] rfkill_fop_write+0x452/0x560 [ 72.487591][ T4322] ? rfkill_fop_read+0x4d0/0x4d0 [ 72.492810][ T4322] ? common_file_perm+0x110/0x1c0 [ 72.498216][ T4322] ? fsnotify_perm+0x5d/0x560 [ 72.502930][ T4322] ? security_file_permission+0x75/0xa0 [ 72.508608][ T4322] ? rfkill_fop_read+0x4d0/0x4d0 [ 72.513567][ T4322] vfs_write+0x30b/0xd60 [ 72.518544][ T4322] ? file_end_write+0x250/0x250 [ 72.523765][ T4322] ? __context_tracking_exit+0x4c/0x80 [ 72.529336][ T4322] ? __lock_acquire+0x7d10/0x7d10 [ 72.534377][ T4322] ? __fdget_pos+0x1e2/0x370 [ 72.538975][ T4322] ksys_write+0x152/0x260 [ 72.543313][ T4322] ? __ia32_sys_read+0x80/0x80 [ 72.548333][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 72.553536][ T4322] do_syscall_64+0x4c/0xa0 [ 72.557953][ T4322] ? clear_bhb_loop+0x30/0x80 [ 72.562629][ T4322] ? clear_bhb_loop+0x30/0x80 [ 72.567391][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.573462][ T4322] RIP: 0033:0x7f6aee954819 [ 72.577884][ T4322] 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 [ 72.597767][ T4322] RSP: 002b:00007ffd1637a638 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 72.606271][ T4322] RAX: ffffffffffffffda RBX: 00007f6aeebcdfa0 RCX: 00007f6aee954819 [ 72.614241][ T4322] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 72.622226][ T4322] RBP: 00007f6aee9eac91 R08: 0000000000000000 R09: 0000000000000000 [ 72.630366][ T4322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 72.638338][ T4322] R13: 00007f6aeebcdfac R14: 00007f6aeebcdfa0 R15: 00007f6aeebcdfa0 [ 72.646312][ T4322] [ 72.652118][ T4288] Bluetooth: hci0: command 0x040f tx timeout