Warning: Permanently added '10.128.0.201' (ED25519) to the list of known hosts. 2026/06/20 17:45:21 parsed 1 programs 2026/06/20 17:45:21 serving rpc on tcp://44965 [ 57.185942][ T4200] cgroup: Unknown subsys name 'net' [ 57.313784][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 58.547423][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.886355][ T4247] chnl_net:caif_netlink_parms(): no params data found [ 60.946935][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.954802][ T4247] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.963499][ T4247] device bridge_slave_0 entered promiscuous mode [ 60.973647][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.981206][ T4247] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.989510][ T4247] device bridge_slave_1 entered promiscuous mode [ 61.014693][ T4247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.026017][ T4247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.053127][ T4247] team0: Port device team_slave_0 added [ 61.061126][ T4247] team0: Port device team_slave_1 added [ 61.081938][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.089056][ T4247] 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. [ 61.115795][ T4247] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.129309][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.136278][ T4247] 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. [ 61.162640][ T4247] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.200570][ T4247] device hsr_slave_0 entered promiscuous mode [ 61.207506][ T4247] device hsr_slave_1 entered promiscuous mode [ 61.330152][ T4247] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.342257][ T4247] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.352201][ T4247] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.363630][ T4247] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.393050][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.400301][ T4247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.408452][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.415531][ T4247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.456157][ T4247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.466983][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.476613][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.499184][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.510665][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.547955][ T4247] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.570012][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.579059][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.590278][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.597379][ T384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.617999][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.627056][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.636049][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.643495][ T384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.651499][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.661561][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.698838][ T4247] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.709635][ T4247] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.721885][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.731931][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.741195][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.750450][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.759697][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.768599][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.777630][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.785996][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.794976][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.802963][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.899912][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.907461][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.920237][ T4247] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.954884][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.964657][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.982177][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.991773][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.000833][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.008860][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.019740][ T4247] device veth0_vlan entered promiscuous mode [ 62.043470][ T4247] device veth1_vlan entered promiscuous mode [ 62.060276][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.070496][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.078943][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.087405][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.098567][ T4247] device veth0_macvtap entered promiscuous mode [ 62.123087][ T4247] device veth1_macvtap entered promiscuous mode [ 62.137411][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.145461][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.154737][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.163244][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.172238][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.184295][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.193443][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.205185][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.227191][ T4247] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.236473][ T4247] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.245520][ T4247] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.254601][ T4247] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.436837][ T4270] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.445425][ T4270] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.460676][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.496971][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.504972][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.514600][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/06/20 17:45:29 executed programs: 0 [ 63.862487][ T4295] chnl_net:caif_netlink_parms(): no params data found [ 63.918034][ T4295] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.925305][ T4295] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.933209][ T4295] device bridge_slave_0 entered promiscuous mode [ 63.941278][ T4295] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.948464][ T4295] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.956101][ T4295] device bridge_slave_1 entered promiscuous mode [ 63.979948][ T4295] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.993418][ T4295] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.017885][ T4295] team0: Port device team_slave_0 added [ 64.026496][ T4295] team0: Port device team_slave_1 added [ 64.042170][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.049676][ 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. [ 64.075794][ T4295] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.093026][ T4295] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.100214][ 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. [ 64.128373][ T4295] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.150986][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.179054][ T4295] device hsr_slave_0 entered promiscuous mode [ 64.186131][ T4295] device hsr_slave_1 entered promiscuous mode [ 64.193255][ T4295] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.202563][ T4295] Cannot create hsr debugfs directory [ 65.798724][ T4264] Bluetooth: hci0: command 0x0409 tx timeout [ 67.094909][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.153324][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.203808][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.888983][ T4253] Bluetooth: hci0: command 0x041b tx timeout [ 67.979013][ T4295] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.987884][ T4295] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.998454][ T4295] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.020297][ T4295] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.079307][ T4295] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.092356][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.100340][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.123199][ T4295] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.132315][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.141028][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.150938][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.158020][ T384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.183775][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.193269][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.203186][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.212431][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.219554][ T384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.230350][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.243292][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.271324][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.280887][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.289549][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.300218][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.309706][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.334207][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.343062][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.360692][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.369992][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.381415][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.409726][ T144] device hsr_slave_0 left promiscuous mode [ 68.416420][ T144] device hsr_slave_1 left promiscuous mode [ 68.423634][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.431978][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.445702][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.453250][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.461115][ T144] device bridge_slave_1 left promiscuous mode [ 68.468039][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.482612][ T144] device bridge_slave_0 left promiscuous mode [ 68.488999][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.508613][ T144] device veth1_macvtap left promiscuous mode [ 68.515001][ T144] device veth0_macvtap left promiscuous mode [ 68.522087][ T144] device veth1_vlan left promiscuous mode [ 68.527991][ T144] device veth0_vlan left promiscuous mode [ 68.664024][ T144] team0 (unregistering): Port device team_slave_1 removed [ 68.677830][ T144] team0 (unregistering): Port device team_slave_0 removed [ 68.691546][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.704198][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.757555][ T144] bond0 (unregistering): Released all slaves [ 68.835029][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.843165][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.856393][ T4295] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.876451][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.886030][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.911466][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.920767][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.929461][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.937232][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.947021][ T4295] device veth0_vlan entered promiscuous mode [ 68.962127][ T4295] device veth1_vlan entered promiscuous mode [ 68.983164][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.991291][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.999971][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.008812][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.020402][ T4295] device veth0_macvtap entered promiscuous mode [ 69.033882][ T4295] device veth1_macvtap entered promiscuous mode [ 69.049382][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.056778][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.066276][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.074600][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.083488][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.096625][ T4295] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.105322][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.114045][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.124727][ T4295] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.134194][ T4295] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.143029][ T4295] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.152212][ T4295] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.199235][ T384] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.207082][ T384] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.217348][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.246775][ T4270] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.255641][ T4270] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.279269][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.416732][ T4345] [ 69.419103][ T4345] ====================================================== [ 69.426117][ T4345] WARNING: possible circular locking dependency detected [ 69.433187][ T4345] syzkaller #0 Not tainted [ 69.437600][ T4345] ------------------------------------------------------ [ 69.444611][ T4345] syz.0.17/4345 is trying to acquire lock: [ 69.450407][ T4345] ffff88807a03d028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 69.461475][ T4345] [ 69.461475][ T4345] but task is already holding lock: [ 69.468837][ T4345] ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 69.478506][ T4345] [ 69.478506][ T4345] which lock already depends on the new lock. [ 69.478506][ T4345] [ 69.488906][ T4345] [ 69.488906][ T4345] the existing dependency chain (in reverse order) is: [ 69.497918][ T4345] [ 69.497918][ T4345] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 69.505914][ T4345] __mutex_lock_common+0x1e5/0x2400 [ 69.511643][ T4345] mutex_lock_nested+0x17/0x20 [ 69.516928][ T4345] rfkill_register+0x2f/0x970 [ 69.522126][ T4345] hci_register_dev+0x459/0x980 [ 69.527514][ T4345] vhci_create_device+0x32e/0x5c0 [ 69.533063][ T4345] vhci_write+0x389/0x440 [ 69.537920][ T4345] vfs_write+0x748/0xd70 [ 69.542685][ T4345] ksys_write+0x153/0x260 [ 69.547539][ T4345] do_syscall_64+0x4c/0xa0 [ 69.552479][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.558899][ T4345] [ 69.558899][ T4345] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 69.566719][ T4345] __mutex_lock_common+0x1e5/0x2400 [ 69.572448][ T4345] mutex_lock_nested+0x17/0x20 [ 69.577754][ T4345] vhci_send_frame+0x88/0x100 [ 69.582965][ T4345] hci_send_frame+0x1a9/0x2e0 [ 69.588171][ T4345] hci_tx_work+0x9b5/0x16d0 [ 69.593193][ T4345] process_one_work+0x867/0xff0 [ 69.598570][ T4345] worker_thread+0xad7/0x12a0 [ 69.603770][ T4345] kthread+0x42e/0x520 [ 69.608361][ T4345] ret_from_fork+0x1f/0x30 [ 69.613294][ T4345] [ 69.613294][ T4345] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 69.622572][ T4345] __flush_work+0x116/0x210 [ 69.627586][ T4345] hci_dev_do_close+0x201/0x1020 [ 69.633036][ T4345] hci_unregister_dev+0x2eb/0x590 [ 69.638579][ T4345] vhci_release+0x73/0xc0 [ 69.643420][ T4345] __fput+0x212/0x8c0 [ 69.647912][ T4345] task_work_run+0x125/0x1a0 [ 69.653014][ T4345] do_exit+0x635/0x2110 [ 69.657678][ T4345] do_group_exit+0x12c/0x2f0 [ 69.662774][ T4345] get_signal+0x7eb/0x12e0 [ 69.667696][ T4345] arch_do_signal_or_restart+0xe6/0x12a0 [ 69.673879][ T4345] exit_to_user_mode_loop+0x9e/0x130 [ 69.679674][ T4345] exit_to_user_mode_prepare+0xee/0x180 [ 69.685727][ T4345] syscall_exit_to_user_mode+0x16/0x40 [ 69.691701][ T4345] do_syscall_64+0x58/0xa0 [ 69.696625][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.703030][ T4345] [ 69.703030][ T4345] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 69.710692][ T4345] __mutex_lock_common+0x1e5/0x2400 [ 69.716410][ T4345] mutex_lock_nested+0x17/0x20 [ 69.721685][ T4345] bg_scan_update+0x44/0x3b0 [ 69.726785][ T4345] process_one_work+0x867/0xff0 [ 69.732152][ T4345] worker_thread+0xad7/0x12a0 [ 69.737334][ T4345] kthread+0x42e/0x520 [ 69.741910][ T4345] ret_from_fork+0x1f/0x30 [ 69.746836][ T4345] [ 69.746836][ T4345] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 69.756634][ T4345] __lock_acquire+0x2c66/0x7b50 [ 69.761997][ T4345] lock_acquire+0x19e/0x400 [ 69.767010][ T4345] __flush_work+0x116/0x210 [ 69.772034][ T4345] __cancel_work_timer+0x3f4/0x560 [ 69.777691][ T4345] hci_request_cancel_all+0xcc/0x300 [ 69.783493][ T4345] hci_dev_do_close+0x4e/0x1020 [ 69.788853][ T4345] hci_rfkill_set_block+0x101/0x180 [ 69.794562][ T4345] rfkill_set_block+0x1c1/0x3c0 [ 69.799923][ T4345] rfkill_fop_write+0x453/0x560 [ 69.805281][ T4345] vfs_write+0x304/0xd70 [ 69.810035][ T4345] ksys_write+0x153/0x260 [ 69.814873][ T4345] do_syscall_64+0x4c/0xa0 [ 69.819795][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.826197][ T4345] [ 69.826197][ T4345] other info that might help us debug this: [ 69.826197][ T4345] [ 69.836414][ T4345] Chain exists of: [ 69.836414][ T4345] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 69.836414][ T4345] [ 69.852123][ T4345] Possible unsafe locking scenario: [ 69.852123][ T4345] [ 69.859561][ T4345] CPU0 CPU1 [ 69.864920][ T4345] ---- ---- [ 69.870300][ T4345] lock(rfkill_global_mutex); [ 69.875049][ T4345] lock(&data->open_mutex); [ 69.882145][ T4345] lock(rfkill_global_mutex); [ 69.889539][ T4345] lock((work_completion)(&hdev->bg_scan_update)); [ 69.896124][ T4345] [ 69.896124][ T4345] *** DEADLOCK *** [ 69.896124][ T4345] [ 69.904254][ T4345] 1 lock held by syz.0.17/4345: [ 69.909087][ T4345] #0: ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 69.919170][ T4345] [ 69.919170][ T4345] stack backtrace: [ 69.925061][ T4345] CPU: 1 PID: 4345 Comm: syz.0.17 Not tainted syzkaller #0 [ 69.932246][ T4345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 69.942304][ T4345] Call Trace: [ 69.945581][ T4345] [ 69.948505][ T4345] dump_stack_lvl+0x188/0x250 [ 69.953173][ T4345] ? load_image+0x410/0x410 [ 69.957666][ T4345] ? show_regs_print_info+0x20/0x20 [ 69.962858][ T4345] ? print_circular_bug+0x12b/0x1a0 [ 69.968054][ T4345] check_noncircular+0x296/0x330 [ 69.972983][ T4345] ? look_up_lock_class+0x71/0x110 [ 69.978088][ T4345] ? add_chain_block+0x9b0/0x9b0 [ 69.983018][ T4345] ? lockdep_lock+0xf1/0x1f0 [ 69.987595][ T4345] ? __lock_acquire+0x1305/0x7b50 [ 69.992623][ T4345] ? mark_lock+0x94/0x320 [ 69.996942][ T4345] ? _find_first_zero_bit+0xd1/0xf0 [ 70.002135][ T4345] __lock_acquire+0x2c66/0x7b50 [ 70.006984][ T4345] ? verify_lock_unused+0x140/0x140 [ 70.012199][ T4345] ? verify_lock_unused+0x140/0x140 [ 70.017397][ T4345] lock_acquire+0x19e/0x400 [ 70.021890][ T4345] ? __flush_work+0xfa/0x210 [ 70.026470][ T4345] ? __lock_acquire+0x7b50/0x7b50 [ 70.031490][ T4345] ? read_lock_is_recursive+0x10/0x10 [ 70.036853][ T4345] ? start_flush_work+0x784/0x830 [ 70.041885][ T4345] __flush_work+0x116/0x210 [ 70.046376][ T4345] ? __flush_work+0xfa/0x210 [ 70.050954][ T4345] ? flush_work+0x20/0x20 [ 70.055267][ T4345] ? try_to_grab_pending+0xfb/0x820 [ 70.060476][ T4345] ? mark_lock+0x94/0x320 [ 70.064794][ T4345] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 70.070770][ T4345] ? lock_chain_count+0x20/0x20 [ 70.075613][ T4345] ? mark_lock+0x94/0x320 [ 70.079930][ T4345] ? __cancel_work_timer+0x36a/0x560 [ 70.085237][ T4345] __cancel_work_timer+0x3f4/0x560 [ 70.090343][ T4345] ? cancel_work_sync+0x20/0x20 [ 70.095183][ T4345] ? __cancel_work+0x1f9/0x2e0 [ 70.099934][ T4345] ? lockdep_hardirqs_on+0x94/0x140 [ 70.105124][ T4345] ? __cancel_work+0x27b/0x2e0 [ 70.109877][ T4345] ? cancel_work+0x20/0x20 [ 70.114284][ T4345] hci_request_cancel_all+0xcc/0x300 [ 70.119564][ T4345] hci_dev_do_close+0x4e/0x1020 [ 70.124418][ T4345] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 70.130406][ T4345] ? _raw_spin_unlock+0x40/0x40 [ 70.135250][ T4345] hci_rfkill_set_block+0x101/0x180 [ 70.140446][ T4345] ? rcu_lock_release+0x20/0x20 [ 70.145308][ T4345] rfkill_set_block+0x1c1/0x3c0 [ 70.150153][ T4345] rfkill_fop_write+0x453/0x560 [ 70.155031][ T4345] ? rfkill_fop_read+0x560/0x560 [ 70.159957][ T4345] ? common_file_perm+0x120/0x1c0 [ 70.164971][ T4345] ? fsnotify_perm+0x5d/0x560 [ 70.169637][ T4345] ? security_file_permission+0x75/0xa0 [ 70.175174][ T4345] ? rfkill_fop_read+0x560/0x560 [ 70.180186][ T4345] vfs_write+0x304/0xd70 [ 70.184434][ T4345] ? file_end_write+0x250/0x250 [ 70.189269][ T4345] ? __context_tracking_exit+0x4c/0x80 [ 70.194720][ T4345] ? __fdget_pos+0x1e2/0x370 [ 70.199299][ T4345] ksys_write+0x153/0x260 [ 70.203620][ T4345] ? __ia32_sys_read+0x80/0x80 [ 70.208374][ T4345] ? lockdep_hardirqs_on+0x94/0x140 [ 70.213574][ T4345] do_syscall_64+0x4c/0xa0 [ 70.217998][ T4345] ? clear_bhb_loop+0x30/0x80 [ 70.222682][ T4345] ? clear_bhb_loop+0x30/0x80 [ 70.227365][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.233311][ T4345] RIP: 0033:0x7fcfafd77e59 [ 70.237723][ T4345] 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 [ 70.257318][ T4345] RSP: 002b:00007ffc6abc9248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 70.265725][ T4345] RAX: ffffffffffffffda RBX: 00007fcfafff0fa0 RCX: 00007fcfafd77e59 [ 70.273688][ T4345] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 70.281735][ T4345] RBP: 00007fcfafe0de6f R08: 0000000000000000 R09: 0000000000000000 [ 70.289695][ T4345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 70.297658][ T4345] R13: 00007fcfafff0fac R14: 00007fcfafff0fa0 R15: 00007fcfafff0fa0 [ 70.305627][ T4345] [ 70.329138][ T4263] Bluetooth: hci0: command 0x040f tx timeout