Warning: Permanently added '10.128.0.122' (ED25519) to the list of known hosts. 2026/07/15 03:28:40 parsed 1 programs 2026/07/15 03:28:40 serving rpc on tcp://46009 [ 63.278158][ T4196] cgroup: Unknown subsys name 'net' [ 63.419533][ T4196] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 64.714106][ T4196] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 66.470889][ T4226] chnl_net:caif_netlink_parms(): no params data found [ 66.509660][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.518108][ T4226] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.526152][ T4226] device bridge_slave_0 entered promiscuous mode [ 66.535343][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.542537][ T4226] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.550255][ T4226] device bridge_slave_1 entered promiscuous mode [ 66.570648][ T4226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.581536][ T4226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.601546][ T4226] team0: Port device team_slave_0 added [ 66.610121][ T4226] team0: Port device team_slave_1 added [ 66.633969][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.641542][ T4226] 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. [ 66.669049][ T4226] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.682841][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.692149][ T4226] 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. [ 66.719529][ T4226] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.757718][ T4226] device hsr_slave_0 entered promiscuous mode [ 66.766596][ T4226] device hsr_slave_1 entered promiscuous mode [ 66.899175][ T4226] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.913558][ T4226] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.927948][ T4226] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.940843][ T4226] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.974957][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.982321][ T4226] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.990302][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.997439][ T4226] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.061883][ T4226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.078915][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.094193][ T550] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.113319][ T550] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.124032][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.141265][ T4226] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.153848][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.164452][ T550] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.171524][ T550] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.195035][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.203771][ T151] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.210895][ T151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.227180][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.237016][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.249960][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.265056][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.278053][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.296789][ T4226] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.421157][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.429298][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.444243][ T4226] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.467682][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.479220][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.498863][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.507802][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.520404][ T4226] device veth0_vlan entered promiscuous mode [ 67.529397][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.537469][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.549698][ T4226] device veth1_vlan entered promiscuous mode [ 67.572511][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.581012][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.590650][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.599620][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.610878][ T4226] device veth0_macvtap entered promiscuous mode [ 67.623736][ T4226] device veth1_macvtap entered promiscuous mode [ 67.641512][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.649786][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.658618][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.667199][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.676432][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.697979][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.710353][ T4226] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.719704][ T4226] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.730263][ T4226] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.739807][ T4226] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.753323][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.763353][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.854046][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.913086][ T550] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.923468][ T550] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.936242][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.953482][ T151] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.961485][ T151] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.969834][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.630595][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.356950][ T1431] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.363434][ T1431] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.049881][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.110481][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/07/15 03:28:52 executed programs: 0 [ 73.914808][ T4312] chnl_net:caif_netlink_parms(): no params data found [ 73.982728][ T4312] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.992355][ T4312] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.001016][ T4312] device bridge_slave_0 entered promiscuous mode [ 74.013359][ T4312] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.020785][ T4312] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.029045][ T4312] device bridge_slave_1 entered promiscuous mode [ 74.060206][ T4312] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.072561][ T4312] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.097232][ T4312] team0: Port device team_slave_0 added [ 74.104864][ T4312] team0: Port device team_slave_1 added [ 74.132032][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.139044][ T4312] 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. [ 74.166164][ T4312] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.178441][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.185842][ T4312] 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. [ 74.211943][ T4312] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.256087][ T4312] device hsr_slave_0 entered promiscuous mode [ 74.266840][ T4312] device hsr_slave_1 entered promiscuous mode [ 74.273601][ T4312] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.282069][ T4312] Cannot create hsr debugfs directory [ 74.306956][ T9] device hsr_slave_0 left promiscuous mode [ 74.313596][ T9] device hsr_slave_1 left promiscuous mode [ 74.320933][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.330771][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.344058][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.353789][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.362084][ T9] device bridge_slave_1 left promiscuous mode [ 74.372736][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.392137][ T9] device bridge_slave_0 left promiscuous mode [ 74.398841][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.422681][ T9] device veth1_macvtap left promiscuous mode [ 74.431278][ T9] device veth0_macvtap left promiscuous mode [ 74.438533][ T9] device veth1_vlan left promiscuous mode [ 74.447161][ T9] device veth0_vlan left promiscuous mode [ 74.584473][ T9] team0 (unregistering): Port device team_slave_1 removed [ 74.597781][ T9] team0 (unregistering): Port device team_slave_0 removed [ 74.611139][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.624549][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.672566][ T9] bond0 (unregistering): Released all slaves [ 75.216011][ T4312] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.229467][ T4312] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.239052][ T4312] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.258032][ T4312] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.383526][ T4312] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.420599][ T4312] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.427776][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.436690][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.456605][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.466917][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.475741][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.482802][ T4236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.493932][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.504698][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.514220][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.521692][ T4236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.531598][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.548954][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.565204][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.585200][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.602186][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.611173][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.621068][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.638935][ T4312] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.649860][ T4312] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.665585][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.675812][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.684309][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.693865][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.703412][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.726225][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.835565][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 75.924297][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.933420][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.960305][ T4312] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.997249][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.015573][ T550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.035780][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.044291][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.059320][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.072388][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.082832][ T4312] device veth0_vlan entered promiscuous mode [ 76.098174][ T4312] device veth1_vlan entered promiscuous mode [ 76.122705][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.132087][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.144128][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.166834][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.189536][ T4312] device veth0_macvtap entered promiscuous mode [ 76.203454][ T4312] device veth1_macvtap entered promiscuous mode [ 76.226725][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.234126][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.245429][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.253507][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.263191][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.275591][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.285624][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.304684][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.322546][ T4312] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.344991][ T4312] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.353724][ T4312] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.375523][ T4312] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.487229][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.496160][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.511131][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.566183][ T4236] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.574035][ T4236] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.590580][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.766247][ T4416] [ 76.768729][ T4416] ====================================================== [ 76.775749][ T4416] WARNING: possible circular locking dependency detected [ 76.782781][ T4416] syzkaller #0 Not tainted [ 76.787200][ T4416] ------------------------------------------------------ [ 76.794228][ T4416] syz.0.17/4416 is trying to acquire lock: [ 76.800041][ T4416] ffff88806f755028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 76.811120][ T4416] [ 76.811120][ T4416] but task is already holding lock: [ 76.818484][ T4416] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.828152][ T4416] [ 76.828152][ T4416] which lock already depends on the new lock. [ 76.828152][ T4416] [ 76.839536][ T4416] [ 76.839536][ T4416] the existing dependency chain (in reverse order) is: [ 76.848565][ T4416] [ 76.848565][ T4416] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 76.856563][ T4416] __mutex_lock_common+0x1e5/0x2400 [ 76.862298][ T4416] mutex_lock_nested+0x17/0x20 [ 76.867597][ T4416] rfkill_register+0x2f/0x970 [ 76.872806][ T4416] hci_register_dev+0x459/0x980 [ 76.878195][ T4416] vhci_create_device+0x32e/0x5c0 [ 76.883752][ T4416] vhci_write+0x389/0x440 [ 76.888611][ T4416] vfs_write+0x748/0xd70 [ 76.893383][ T4416] ksys_write+0x153/0x260 [ 76.898248][ T4416] do_syscall_64+0x4c/0xa0 [ 76.903197][ T4416] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.909624][ T4416] [ 76.909624][ T4416] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 76.917451][ T4416] __mutex_lock_common+0x1e5/0x2400 [ 76.923198][ T4416] mutex_lock_nested+0x17/0x20 [ 76.928498][ T4416] vhci_send_frame+0x88/0x100 [ 76.933707][ T4416] hci_send_frame+0x1a9/0x2e0 [ 76.939822][ T4416] hci_tx_work+0x9b5/0x16d0 [ 76.945022][ T4416] process_one_work+0x867/0xff0 [ 76.950411][ T4416] worker_thread+0xad7/0x12a0 [ 76.956231][ T4416] kthread+0x42e/0x520 [ 76.960834][ T4416] ret_from_fork+0x1f/0x30 [ 76.965782][ T4416] [ 76.965782][ T4416] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 76.975083][ T4416] __flush_work+0x116/0x210 [ 76.980193][ T4416] hci_dev_do_close+0x201/0x1020 [ 76.985750][ T4416] hci_unregister_dev+0x2eb/0x590 [ 76.991320][ T4416] vhci_release+0x73/0xc0 [ 76.996177][ T4416] __fput+0x212/0x8c0 [ 77.000691][ T4416] task_work_run+0x125/0x1a0 [ 77.005815][ T4416] do_exit+0x635/0x2110 [ 77.010506][ T4416] do_group_exit+0x12c/0x2f0 [ 77.015648][ T4416] get_signal+0x7eb/0x12e0 [ 77.020596][ T4416] arch_do_signal_or_restart+0xe6/0x12a0 [ 77.026765][ T4416] exit_to_user_mode_loop+0x9e/0x130 [ 77.032581][ T4416] exit_to_user_mode_prepare+0xee/0x180 [ 77.038662][ T4416] syscall_exit_to_user_mode+0x16/0x40 [ 77.044661][ T4416] do_syscall_64+0x58/0xa0 [ 77.049616][ T4416] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.056192][ T4416] [ 77.056192][ T4416] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 77.063850][ T4416] __mutex_lock_common+0x1e5/0x2400 [ 77.069586][ T4416] mutex_lock_nested+0x17/0x20 [ 77.074884][ T4416] bg_scan_update+0x44/0x3b0 [ 77.080007][ T4416] process_one_work+0x867/0xff0 [ 77.085390][ T4416] worker_thread+0xad7/0x12a0 [ 77.090598][ T4416] kthread+0x42e/0x520 [ 77.095196][ T4416] ret_from_fork+0x1f/0x30 [ 77.100158][ T4416] [ 77.100158][ T4416] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 77.109976][ T4416] __lock_acquire+0x2c66/0x7b50 [ 77.115363][ T4416] lock_acquire+0x19e/0x400 [ 77.120399][ T4416] __flush_work+0x116/0x210 [ 77.125435][ T4416] __cancel_work_timer+0x3f4/0x560 [ 77.131076][ T4416] hci_request_cancel_all+0xcc/0x300 [ 77.136892][ T4416] hci_dev_do_close+0x4e/0x1020 [ 77.142285][ T4416] hci_rfkill_set_block+0x101/0x180 [ 77.148022][ T4416] rfkill_set_block+0x1c1/0x3c0 [ 77.153453][ T4416] rfkill_fop_write+0x453/0x560 [ 77.159023][ T4416] vfs_write+0x304/0xd70 [ 77.163807][ T4416] ksys_write+0x153/0x260 [ 77.168669][ T4416] do_syscall_64+0x4c/0xa0 [ 77.173651][ T4416] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.180090][ T4416] [ 77.180090][ T4416] other info that might help us debug this: [ 77.180090][ T4416] [ 77.190327][ T4416] Chain exists of: [ 77.190327][ T4416] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 77.190327][ T4416] [ 77.206053][ T4416] Possible unsafe locking scenario: [ 77.206053][ T4416] [ 77.213504][ T4416] CPU0 CPU1 [ 77.218874][ T4416] ---- ---- [ 77.224244][ T4416] lock(rfkill_global_mutex); [ 77.229015][ T4416] lock(&data->open_mutex); [ 77.236135][ T4416] lock(rfkill_global_mutex); [ 77.243432][ T4416] lock((work_completion)(&hdev->bg_scan_update)); [ 77.250041][ T4416] [ 77.250041][ T4416] *** DEADLOCK *** [ 77.250041][ T4416] [ 77.258193][ T4416] 1 lock held by syz.0.17/4416: [ 77.263046][ T4416] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 77.273164][ T4416] [ 77.273164][ T4416] stack backtrace: [ 77.279087][ T4416] CPU: 0 PID: 4416 Comm: syz.0.17 Not tainted syzkaller #0 [ 77.286299][ T4416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 77.296375][ T4416] Call Trace: [ 77.299664][ T4416] [ 77.302600][ T4416] dump_stack_lvl+0x188/0x250 [ 77.307287][ T4416] ? load_image+0x410/0x410 [ 77.311800][ T4416] ? show_regs_print_info+0x20/0x20 [ 77.317014][ T4416] ? print_circular_bug+0x12b/0x1a0 [ 77.322221][ T4416] check_noncircular+0x296/0x330 [ 77.327178][ T4416] ? look_up_lock_class+0x71/0x110 [ 77.332310][ T4416] ? add_chain_block+0x9b0/0x9b0 [ 77.337256][ T4416] ? lockdep_lock+0x15c/0x1f0 [ 77.341986][ T4416] ? __lock_acquire+0x1305/0x7b50 [ 77.347116][ T4416] ? mark_lock+0x94/0x320 [ 77.351466][ T4416] ? _find_first_zero_bit+0xd1/0xf0 [ 77.356687][ T4416] __lock_acquire+0x2c66/0x7b50 [ 77.361554][ T4416] ? verify_lock_unused+0x140/0x140 [ 77.366780][ T4416] ? verify_lock_unused+0x140/0x140 [ 77.372009][ T4416] lock_acquire+0x19e/0x400 [ 77.376614][ T4416] ? __flush_work+0xfa/0x210 [ 77.381501][ T4416] ? __lock_acquire+0x7b50/0x7b50 [ 77.386560][ T4416] ? read_lock_is_recursive+0x10/0x10 [ 77.391947][ T4416] ? start_flush_work+0x784/0x830 [ 77.396998][ T4416] __flush_work+0x116/0x210 [ 77.401534][ T4416] ? __flush_work+0xfa/0x210 [ 77.406138][ T4416] ? flush_work+0x20/0x20 [ 77.410530][ T4416] ? try_to_grab_pending+0xfb/0x820 [ 77.416144][ T4416] ? mark_lock+0x94/0x320 [ 77.420489][ T4416] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 77.426587][ T4416] ? lock_chain_count+0x20/0x20 [ 77.431456][ T4416] ? mark_lock+0x94/0x320 [ 77.435812][ T4416] ? __cancel_work_timer+0x36a/0x560 [ 77.441106][ T4416] __cancel_work_timer+0x3f4/0x560 [ 77.446238][ T4416] ? cancel_work_sync+0x20/0x20 [ 77.451104][ T4416] ? __cancel_work+0x1f9/0x2e0 [ 77.455880][ T4416] ? lockdep_hardirqs_on+0x94/0x140 [ 77.461089][ T4416] ? __cancel_work+0x27b/0x2e0 [ 77.465878][ T4416] ? cancel_work+0x20/0x20 [ 77.470312][ T4416] hci_request_cancel_all+0xcc/0x300 [ 77.475611][ T4416] hci_dev_do_close+0x4e/0x1020 [ 77.480473][ T4416] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 77.486379][ T4416] ? _raw_spin_unlock+0x40/0x40 [ 77.491248][ T4416] hci_rfkill_set_block+0x101/0x180 [ 77.496473][ T4416] ? rcu_lock_release+0x20/0x20 [ 77.501336][ T4416] rfkill_set_block+0x1c1/0x3c0 [ 77.506201][ T4416] rfkill_fop_write+0x453/0x560 [ 77.511063][ T4416] ? rfkill_fop_read+0x560/0x560 [ 77.516012][ T4416] ? common_file_perm+0xf0/0x1c0 [ 77.520963][ T4416] ? fsnotify_perm+0x5d/0x560 [ 77.525655][ T4416] ? security_file_permission+0x75/0xa0 [ 77.531223][ T4416] ? rfkill_fop_read+0x560/0x560 [ 77.536171][ T4416] vfs_write+0x304/0xd70 [ 77.540427][ T4416] ? file_end_write+0x250/0x250 [ 77.545298][ T4416] ? __context_tracking_exit+0x4c/0x80 [ 77.550774][ T4416] ? __fdget_pos+0x1e2/0x370 [ 77.555406][ T4416] ksys_write+0x153/0x260 [ 77.559752][ T4416] ? __ia32_sys_read+0x80/0x80 [ 77.564526][ T4416] ? lockdep_hardirqs_on+0x94/0x140 [ 77.569742][ T4416] do_syscall_64+0x4c/0xa0 [ 77.574182][ T4416] ? clear_bhb_loop+0x30/0x80 [ 77.578872][ T4416] ? clear_bhb_loop+0x30/0x80 [ 77.583573][ T4416] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.589505][ T4416] RIP: 0033:0x7f39514cee59 [ 77.593947][ T4416] 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 [ 77.615758][ T4416] RSP: 002b:00007fffd71314b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.624187][ T4416] RAX: ffffffffffffffda RBX: 00007f3951756fa0 RCX: 00007f39514cee59 [ 77.632172][ T4416] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 77.640843][ T4416] RBP: 00007f3951564e6f R08: 0000000000000000 R09: 0000000000000000 [ 77.648825][ T4416] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.656804][ T4416] R13: 00007f3951756fac R14: 00007f3951756fa0 R15: 00007f3951756fa0 [ 77.664792][ T4416]