Warning: Permanently added '10.128.1.113' (ED25519) to the list of known hosts. 2026/04/06 13:56:42 parsed 1 programs [ 56.096379][ T4188] cgroup: Unknown subsys name 'net' [ 56.228033][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 57.468390][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.190293][ T1156] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.202876][ T1156] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.214329][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 60.237843][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.246160][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.255045][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.531297][ T4253] chnl_net:caif_netlink_parms(): no params data found [ 60.591368][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.599161][ T4253] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.606994][ T4253] device bridge_slave_0 entered promiscuous mode [ 60.615506][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.622709][ T4253] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.630307][ T4253] device bridge_slave_1 entered promiscuous mode [ 60.648836][ T4253] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.659436][ T4253] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.685420][ T4253] team0: Port device team_slave_0 added [ 60.693714][ T4253] team0: Port device team_slave_1 added [ 60.715586][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.722591][ T4253] 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. [ 60.748741][ T4253] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.763294][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.770536][ T4253] 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. [ 60.796547][ T4253] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.843768][ T4253] device hsr_slave_0 entered promiscuous mode [ 60.851518][ T4253] device hsr_slave_1 entered promiscuous mode [ 60.954482][ T4253] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.964213][ T4253] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.972952][ T4253] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.981704][ T4253] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.027618][ T4253] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.040907][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.049871][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.060780][ T4253] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.069943][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.078945][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.087929][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.095150][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.106507][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.114897][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.123513][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.131932][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.139001][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.150135][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.161311][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.174163][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.183438][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.192430][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.203990][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.212477][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.222967][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.231307][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.242430][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.251063][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.261433][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.364650][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.372096][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.384998][ T4253] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.399744][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.409021][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.441824][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.450103][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.458923][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.466839][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.476743][ T4253] device veth0_vlan entered promiscuous mode [ 61.506900][ T4253] device veth1_vlan entered promiscuous mode [ 61.523970][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.531901][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.541347][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.549970][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.560698][ T4253] device veth0_macvtap entered promiscuous mode [ 61.570648][ T4253] device veth1_macvtap entered promiscuous mode [ 61.603385][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.611076][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.619855][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.628054][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.636986][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.647922][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.656929][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.665950][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.678534][ T4253] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.687481][ T4253] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.696583][ T4253] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.705535][ T4253] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.805510][ T4253] syz-executor (4253) used greatest stack depth: 20432 bytes left 2026/04/06 13:56:49 executed programs: 0 [ 62.473286][ T4295] chnl_net:caif_netlink_parms(): no params data found [ 62.534371][ T4295] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.541519][ T4295] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.552084][ T4295] device bridge_slave_0 entered promiscuous mode [ 62.561636][ T4295] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.571249][ T4295] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.579748][ T4295] device bridge_slave_1 entered promiscuous mode [ 62.609092][ T4295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.620387][ T4295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.652057][ T4295] team0: Port device team_slave_0 added [ 62.659987][ T4295] team0: Port device team_slave_1 added [ 62.684640][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.691614][ T4295] 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. [ 62.718280][ T4295] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.731033][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.738100][ T4295] 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. [ 62.765407][ T4295] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.804785][ T4295] device hsr_slave_0 entered promiscuous mode [ 62.813406][ T4295] device hsr_slave_1 entered promiscuous mode [ 62.820100][ T4295] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 62.829057][ T4295] Cannot create hsr debugfs directory [ 62.929238][ T4295] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.363331][ T1107] Bluetooth: hci0: command 0x0409 tx timeout [ 65.578569][ T4295] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.442842][ T4206] Bluetooth: hci0: command 0x041b tx timeout [ 66.706960][ T4295] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.758157][ T4295] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.885102][ T4295] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.894240][ T4295] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.902862][ T4295] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.917031][ T4295] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.959415][ T4295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.978066][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.986999][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.996646][ T4295] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.015039][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.023817][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.032160][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.039254][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.047884][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.058326][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.067736][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.076252][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.083303][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.098143][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.107033][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.127130][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.136308][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.144945][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.156967][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.166336][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.184753][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.194298][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.204978][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.213750][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.224566][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.236016][ T144] device hsr_slave_0 left promiscuous mode [ 67.244901][ T144] device hsr_slave_1 left promiscuous mode [ 67.251424][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.259182][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.267643][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.275234][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.282844][ T144] device bridge_slave_1 left promiscuous mode [ 67.289512][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.301673][ T144] device bridge_slave_0 left promiscuous mode [ 67.308918][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.324165][ T144] device veth1_macvtap left promiscuous mode [ 67.330352][ T144] device veth0_macvtap left promiscuous mode [ 67.336485][ T144] device veth1_vlan left promiscuous mode [ 67.342326][ T144] device veth0_vlan left promiscuous mode [ 67.467715][ T144] team0 (unregistering): Port device team_slave_1 removed [ 67.481894][ T144] team0 (unregistering): Port device team_slave_0 removed [ 67.496013][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.508551][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.558872][ T144] bond0 (unregistering): Released all slaves [ 67.678490][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.686437][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.701080][ T4295] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.725521][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.734506][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.749945][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.758777][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.767308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.776270][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.786266][ T4295] device veth0_vlan entered promiscuous mode [ 67.805548][ T4295] device veth1_vlan entered promiscuous mode [ 67.821448][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.829580][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.838050][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.846957][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.858235][ T4295] device veth0_macvtap entered promiscuous mode [ 67.867867][ T4295] device veth1_macvtap entered promiscuous mode [ 67.880857][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.888595][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.896917][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.904894][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.914088][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.931843][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.941699][ T4295] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.952038][ T4295] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.961816][ T4295] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.979937][ T4295] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.991069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.000253][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.059239][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.069380][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.090114][ T1156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.102791][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.110634][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.118719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.236216][ T4308] [ 68.238580][ T4308] ====================================================== [ 68.245608][ T4308] WARNING: possible circular locking dependency detected [ 68.252639][ T4308] syzkaller #0 Not tainted [ 68.257042][ T4308] ------------------------------------------------------ [ 68.264045][ T4308] syz.0.17/4308 is trying to acquire lock: [ 68.269841][ T4308] ffff888024d44c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 68.280915][ T4308] [ 68.280915][ T4308] but task is already holding lock: [ 68.288265][ T4308] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 68.297929][ T4308] [ 68.297929][ T4308] which lock already depends on the new lock. [ 68.297929][ T4308] [ 68.308325][ T4308] [ 68.308325][ T4308] the existing dependency chain (in reverse order) is: [ 68.317337][ T4308] [ 68.317337][ T4308] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 68.325330][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 68.331056][ T4308] mutex_lock_nested+0x17/0x20 [ 68.336432][ T4308] rfkill_register+0x33/0x8a0 [ 68.341633][ T4308] hci_register_dev+0x452/0x970 [ 68.346998][ T4308] vhci_create_device+0x32c/0x5c0 [ 68.352543][ T4308] vhci_write+0x391/0x450 [ 68.357393][ T4308] vfs_write+0x745/0xd60 [ 68.362152][ T4308] ksys_write+0x152/0x260 [ 68.366997][ T4308] do_syscall_64+0x4c/0xa0 [ 68.371926][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.378333][ T4308] [ 68.378333][ T4308] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 68.386236][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 68.391952][ T4308] mutex_lock_nested+0x17/0x20 [ 68.397229][ T4308] vhci_send_frame+0x88/0x100 [ 68.402421][ T4308] hci_send_frame+0x1a9/0x2e0 [ 68.407615][ T4308] hci_tx_work+0x9f9/0x1710 [ 68.412633][ T4308] process_one_work+0x85f/0x1010 [ 68.418082][ T4308] worker_thread+0xaa6/0x1290 [ 68.423270][ T4308] kthread+0x436/0x520 [ 68.427860][ T4308] ret_from_fork+0x1f/0x30 [ 68.432795][ T4308] [ 68.432795][ T4308] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 68.441991][ T4308] __flush_work+0x116/0x210 [ 68.446998][ T4308] hci_dev_do_close+0x1e7/0x1030 [ 68.452446][ T4308] hci_unregister_dev+0x2d7/0x580 [ 68.457976][ T4308] vhci_release+0x73/0xc0 [ 68.462808][ T4308] __fput+0x234/0x930 [ 68.467291][ T4308] task_work_run+0x125/0x1a0 [ 68.472381][ T4308] do_exit+0x626/0x20c0 [ 68.477035][ T4308] do_group_exit+0x12e/0x300 [ 68.482132][ T4308] get_signal+0x6ca/0x12c0 [ 68.487046][ T4308] arch_do_signal_or_restart+0xe7/0x12c0 [ 68.493181][ T4308] exit_to_user_mode_loop+0x9e/0x130 [ 68.498969][ T4308] exit_to_user_mode_prepare+0xee/0x180 [ 68.505187][ T4308] syscall_exit_to_user_mode+0x16/0x40 [ 68.511150][ T4308] do_syscall_64+0x58/0xa0 [ 68.516065][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.522457][ T4308] [ 68.522457][ T4308] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 68.530163][ T4308] __mutex_lock_common+0x1e3/0x2400 [ 68.535864][ T4308] mutex_lock_nested+0x17/0x20 [ 68.541132][ T4308] bg_scan_update+0x44/0x3b0 [ 68.546222][ T4308] process_one_work+0x85f/0x1010 [ 68.551661][ T4308] worker_thread+0xaa6/0x1290 [ 68.556842][ T4308] kthread+0x436/0x520 [ 68.561414][ T4308] ret_from_fork+0x1f/0x30 [ 68.566333][ T4308] [ 68.566333][ T4308] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 68.576133][ T4308] __lock_acquire+0x2c42/0x7d10 [ 68.581488][ T4308] lock_acquire+0x19e/0x400 [ 68.586491][ T4308] __flush_work+0x116/0x210 [ 68.591496][ T4308] __cancel_work_timer+0x3f4/0x560 [ 68.597105][ T4308] hci_request_cancel_all+0xcc/0x300 [ 68.602894][ T4308] hci_dev_do_close+0x4e/0x1030 [ 68.608245][ T4308] hci_rfkill_set_block+0x10a/0x190 [ 68.613944][ T4308] rfkill_set_block+0x1c6/0x420 [ 68.619298][ T4308] rfkill_fop_write+0x452/0x560 [ 68.624652][ T4308] vfs_write+0x30b/0xd60 [ 68.629399][ T4308] ksys_write+0x152/0x260 [ 68.634229][ T4308] do_syscall_64+0x4c/0xa0 [ 68.639145][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.645537][ T4308] [ 68.645537][ T4308] other info that might help us debug this: [ 68.645537][ T4308] [ 68.655743][ T4308] Chain exists of: [ 68.655743][ T4308] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.655743][ T4308] [ 68.671442][ T4308] Possible unsafe locking scenario: [ 68.671442][ T4308] [ 68.678868][ T4308] CPU0 CPU1 [ 68.684211][ T4308] ---- ---- [ 68.689552][ T4308] lock(rfkill_global_mutex); [ 68.694301][ T4308] lock(&data->open_mutex); [ 68.701386][ T4308] lock(rfkill_global_mutex); [ 68.708645][ T4308] lock((work_completion)(&hdev->bg_scan_update)); [ 68.715210][ T4308] [ 68.715210][ T4308] *** DEADLOCK *** [ 68.715210][ T4308] [ 68.723329][ T4308] 1 lock held by syz.0.17/4308: [ 68.728256][ T4308] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 68.738324][ T4308] [ 68.738324][ T4308] stack backtrace: [ 68.744212][ T4308] CPU: 1 PID: 4308 Comm: syz.0.17 Not tainted syzkaller #0 [ 68.751388][ T4308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 68.761514][ T4308] Call Trace: [ 68.764776][ T4308] [ 68.767698][ T4308] dump_stack_lvl+0x188/0x250 [ 68.772355][ T4308] ? load_image+0x400/0x400 [ 68.776839][ T4308] ? show_regs_print_info+0x20/0x20 [ 68.782027][ T4308] ? print_circular_bug+0x12b/0x1a0 [ 68.787207][ T4308] check_noncircular+0x296/0x330 [ 68.792125][ T4308] ? look_up_lock_class+0x71/0x110 [ 68.797216][ T4308] ? add_chain_block+0x940/0x940 [ 68.802130][ T4308] ? lockdep_lock+0xf1/0x1f0 [ 68.806701][ T4308] ? __lock_acquire+0x12e8/0x7d10 [ 68.811709][ T4308] ? mark_lock+0x94/0x320 [ 68.816018][ T4308] __lock_acquire+0x2c42/0x7d10 [ 68.820856][ T4308] ? verify_lock_unused+0x140/0x140 [ 68.826044][ T4308] ? verify_lock_unused+0x140/0x140 [ 68.831225][ T4308] ? mark_lock+0x94/0x320 [ 68.835536][ T4308] lock_acquire+0x19e/0x400 [ 68.840028][ T4308] ? __flush_work+0xfa/0x210 [ 68.844600][ T4308] ? __lock_acquire+0x7d10/0x7d10 [ 68.849611][ T4308] ? read_lock_is_recursive+0x10/0x10 [ 68.854963][ T4308] ? start_flush_work+0x776/0x820 [ 68.859968][ T4308] __flush_work+0x116/0x210 [ 68.864449][ T4308] ? __flush_work+0xfa/0x210 [ 68.869017][ T4308] ? flush_work+0x20/0x20 [ 68.873325][ T4308] ? try_to_grab_pending+0xfa/0x7f0 [ 68.878500][ T4308] ? mark_lock+0x94/0x320 [ 68.882806][ T4308] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 68.888770][ T4308] ? lock_chain_count+0x20/0x20 [ 68.893649][ T4308] ? mark_lock+0x94/0x320 [ 68.897958][ T4308] ? __cancel_work_timer+0x36a/0x560 [ 68.903226][ T4308] __cancel_work_timer+0x3f4/0x560 [ 68.908329][ T4308] ? cancel_work_sync+0x20/0x20 [ 68.913158][ T4308] ? __cancel_work+0x1f9/0x2e0 [ 68.917900][ T4308] ? lockdep_hardirqs_on+0x94/0x140 [ 68.923079][ T4308] ? __cancel_work+0x27b/0x2e0 [ 68.927824][ T4308] ? cancel_work+0x20/0x20 [ 68.932219][ T4308] ? lock_chain_count+0x20/0x20 [ 68.937054][ T4308] hci_request_cancel_all+0xcc/0x300 [ 68.942325][ T4308] hci_dev_do_close+0x4e/0x1030 [ 68.947156][ T4308] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 68.953031][ T4308] ? _raw_spin_unlock+0x40/0x40 [ 68.957861][ T4308] hci_rfkill_set_block+0x10a/0x190 [ 68.963040][ T4308] ? rcu_lock_release+0x20/0x20 [ 68.967869][ T4308] rfkill_set_block+0x1c6/0x420 [ 68.972703][ T4308] rfkill_fop_write+0x452/0x560 [ 68.977536][ T4308] ? rfkill_fop_read+0x4d0/0x4d0 [ 68.982456][ T4308] ? common_file_perm+0x110/0x1c0 [ 68.987463][ T4308] ? fsnotify_perm+0x5d/0x560 [ 68.992120][ T4308] ? security_file_permission+0x75/0xa0 [ 68.997647][ T4308] ? rfkill_fop_read+0x4d0/0x4d0 [ 69.002568][ T4308] vfs_write+0x30b/0xd60 [ 69.006794][ T4308] ? file_end_write+0x250/0x250 [ 69.011628][ T4308] ? __context_tracking_exit+0x4c/0x80 [ 69.017067][ T4308] ? __lock_acquire+0x7d10/0x7d10 [ 69.022078][ T4308] ? __fdget_pos+0x1e2/0x370 [ 69.026648][ T4308] ksys_write+0x152/0x260 [ 69.030958][ T4308] ? __ia32_sys_read+0x80/0x80 [ 69.035700][ T4308] ? lockdep_hardirqs_on+0x94/0x140 [ 69.040881][ T4308] do_syscall_64+0x4c/0xa0 [ 69.045276][ T4308] ? clear_bhb_loop+0x30/0x80 [ 69.049933][ T4308] ? clear_bhb_loop+0x30/0x80 [ 69.054594][ T4308] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.060477][ T4308] RIP: 0033:0x7ff674b77819 [ 69.064877][ T4308] 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 [ 69.084468][ T4308] RSP: 002b:00007ffea9587e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 69.092868][ T4308] RAX: ffffffffffffffda RBX: 00007ff674df0fa0 RCX: 00007ff674b77819 [ 69.100829][ T4308] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 69.108788][ T4308] RBP: 00007ff674c0dc91 R08: 0000000000000000 R09: 0000000000000000 [ 69.116742][ T4308] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.124695][ T4308] R13: 00007ff674df0fac R14: 00007ff674df0fa0 R15: 00007ff674df0fa0 [ 69.132665][ T4308] [ 69.138914][ T4274] Bluetooth: hci0: command 0x040f tx timeout