Warning: Permanently added '10.128.1.148' (ED25519) to the list of known hosts. 2026/04/06 12:16:18 parsed 1 programs [ 62.747563][ T4186] cgroup: Unknown subsys name 'net' [ 62.861490][ T4186] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 64.355421][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 66.506339][ T4220] chnl_net:caif_netlink_parms(): no params data found [ 66.577842][ T4220] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.585845][ T4220] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.594536][ T4220] device bridge_slave_0 entered promiscuous mode [ 66.605793][ T4220] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.613039][ T4220] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.622579][ T4220] device bridge_slave_1 entered promiscuous mode [ 66.651397][ T4220] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.664476][ T4220] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.697476][ T4220] team0: Port device team_slave_0 added [ 66.706576][ T4220] team0: Port device team_slave_1 added [ 66.731061][ T4220] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.739761][ T4220] 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. [ 66.767517][ T4220] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.781062][ T4220] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.789589][ T4220] 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. [ 66.821198][ T4220] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.862741][ T4220] device hsr_slave_0 entered promiscuous mode [ 66.869790][ T4220] device hsr_slave_1 entered promiscuous mode [ 67.011650][ T4220] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.024459][ T4220] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.036391][ T4220] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.048160][ T4220] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.079006][ T4220] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.086405][ T4220] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.094624][ T4220] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.101875][ T4220] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.165679][ T4220] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.183694][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.196961][ T1237] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.206267][ T1237] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.224567][ T4220] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.235515][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.244300][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.254183][ T1237] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.261520][ T1237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.286915][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.297508][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.306232][ T424] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.313295][ T424] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.323160][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.332982][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.343245][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.354377][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.375030][ T4220] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.386574][ T4220] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.400179][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.409085][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.418981][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.428967][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.438109][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.447968][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.456811][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.466011][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.610818][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.619365][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.634307][ T4220] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.661094][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.671148][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.691585][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.700161][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.709887][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.718229][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.729014][ T4220] device veth0_vlan entered promiscuous mode [ 67.750141][ T4220] device veth1_vlan entered promiscuous mode [ 67.820385][ T4220] device veth0_macvtap entered promiscuous mode [ 67.828319][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.836910][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.844824][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.854166][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.864902][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.876832][ T4220] device veth1_macvtap entered promiscuous mode [ 67.892002][ T4220] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.900664][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.908870][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.918082][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.929982][ T4220] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.949144][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.957749][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.969774][ T4220] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.979466][ T4220] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.989198][ T4220] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.998269][ T4220] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.175291][ T1237] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.187894][ T1237] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.204897][ T424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.220671][ T1237] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.229039][ T1237] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.244689][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/06 12:16:27 executed programs: 0 [ 70.250756][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.390551][ T4279] chnl_net:caif_netlink_parms(): no params data found [ 70.429462][ T4279] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.436837][ T4279] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.444590][ T4279] device bridge_slave_0 entered promiscuous mode [ 70.452724][ T4279] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.460132][ T4279] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.467981][ T4279] device bridge_slave_1 entered promiscuous mode [ 70.487982][ T4279] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.499832][ T4279] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.521558][ T4279] team0: Port device team_slave_0 added [ 70.529374][ T4279] team0: Port device team_slave_1 added [ 70.546398][ T4279] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.553599][ T4279] 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. [ 70.579899][ T4279] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.592213][ T4279] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.599350][ T4279] 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. [ 70.625826][ T4279] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.652774][ T4279] device hsr_slave_0 entered promiscuous mode [ 70.660233][ T4279] device hsr_slave_1 entered promiscuous mode [ 70.668186][ T4279] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.676628][ T4279] Cannot create hsr debugfs directory [ 71.617898][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.624429][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.336304][ T1108] Bluetooth: hci0: command 0x0409 tx timeout [ 72.762237][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.810485][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.861353][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.729926][ T4279] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.740624][ T4279] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.751158][ T4279] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.779575][ T4279] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.851129][ T4279] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.872857][ T4279] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.880953][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.889264][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.913106][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.922251][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.931389][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.938584][ T4253] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.950471][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.959820][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.968914][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.977906][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.984964][ T4253] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.020584][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.032871][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.044709][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.057609][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.066439][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.097710][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.106725][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.121306][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.130204][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.143591][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.152682][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.163103][ T4279] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.273846][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.281629][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.294640][ T4279] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.328658][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.338416][ T1237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.367123][ T4279] device veth0_vlan entered promiscuous mode [ 74.373725][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.386558][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.401010][ T4279] device veth1_vlan entered promiscuous mode [ 74.415774][ T4303] Bluetooth: hci0: command 0x041b tx timeout [ 74.422473][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.430731][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.439049][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.459143][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.468214][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.478106][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.489301][ T4279] device veth0_macvtap entered promiscuous mode [ 74.514280][ T9] device hsr_slave_0 left promiscuous mode [ 74.521371][ T9] device hsr_slave_1 left promiscuous mode [ 74.528867][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.536558][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.544595][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.552561][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.560718][ T9] device bridge_slave_1 left promiscuous mode [ 74.567882][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.581632][ T9] device bridge_slave_0 left promiscuous mode [ 74.587922][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.604368][ T9] device veth1_macvtap left promiscuous mode [ 74.610952][ T9] device veth0_macvtap left promiscuous mode [ 74.618810][ T9] device veth1_vlan left promiscuous mode [ 74.625022][ T9] device veth0_vlan left promiscuous mode [ 74.783753][ T9] team0 (unregistering): Port device team_slave_1 removed [ 74.797818][ T9] team0 (unregistering): Port device team_slave_0 removed [ 74.811954][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.829851][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.883690][ T9] bond0 (unregistering): Released all slaves [ 74.942625][ T4279] device veth1_macvtap entered promiscuous mode [ 74.954288][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.964465][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.986780][ T4279] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.994415][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.004128][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.019328][ T4279] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.030890][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.039481][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.050004][ T4279] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.059584][ T4279] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.069464][ T4279] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.078684][ T4279] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.149820][ T4253] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.158703][ T4253] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.174900][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.205095][ T1237] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.213058][ T1237] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.221634][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.311742][ T4332] [ 75.314141][ T4332] ====================================================== [ 75.321182][ T4332] WARNING: possible circular locking dependency detected [ 75.328484][ T4332] syzkaller #0 Not tainted [ 75.332922][ T4332] ------------------------------------------------------ [ 75.340310][ T4332] syz.0.17/4332 is trying to acquire lock: [ 75.346153][ T4332] ffff8880257e0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 75.357240][ T4332] [ 75.357240][ T4332] but task is already holding lock: [ 75.364711][ T4332] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 75.374521][ T4332] [ 75.374521][ T4332] which lock already depends on the new lock. [ 75.374521][ T4332] [ 75.384952][ T4332] [ 75.384952][ T4332] the existing dependency chain (in reverse order) is: [ 75.393996][ T4332] [ 75.393996][ T4332] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.402072][ T4332] __mutex_lock_common+0x1e3/0x2400 [ 75.407851][ T4332] mutex_lock_nested+0x17/0x20 [ 75.413186][ T4332] rfkill_register+0x33/0x8a0 [ 75.418509][ T4332] hci_register_dev+0x452/0x970 [ 75.424010][ T4332] vhci_create_device+0x32c/0x5c0 [ 75.429592][ T4332] vhci_write+0x391/0x450 [ 75.434676][ T4332] vfs_write+0x745/0xd60 [ 75.439477][ T4332] ksys_write+0x152/0x260 [ 75.444356][ T4332] do_syscall_64+0x4c/0xa0 [ 75.449322][ T4332] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.455767][ T4332] [ 75.455767][ T4332] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.463629][ T4332] __mutex_lock_common+0x1e3/0x2400 [ 75.469379][ T4332] mutex_lock_nested+0x17/0x20 [ 75.474676][ T4332] vhci_send_frame+0x88/0x100 [ 75.479889][ T4332] hci_send_frame+0x1a9/0x2e0 [ 75.485099][ T4332] hci_tx_work+0x9f9/0x1710 [ 75.490187][ T4332] process_one_work+0x85f/0x1010 [ 75.495652][ T4332] worker_thread+0xaa6/0x1290 [ 75.500842][ T4332] kthread+0x436/0x520 [ 75.505439][ T4332] ret_from_fork+0x1f/0x30 [ 75.510369][ T4332] [ 75.510369][ T4332] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 75.519567][ T4332] __flush_work+0x116/0x210 [ 75.524671][ T4332] hci_dev_do_close+0x1e7/0x1030 [ 75.530224][ T4332] hci_unregister_dev+0x2d7/0x580 [ 75.535762][ T4332] vhci_release+0x73/0xc0 [ 75.540824][ T4332] __fput+0x234/0x930 [ 75.545433][ T4332] task_work_run+0x125/0x1a0 [ 75.550551][ T4332] do_exit+0x626/0x20c0 [ 75.555220][ T4332] do_group_exit+0x12e/0x300 [ 75.560330][ T4332] get_signal+0x6ca/0x12c0 [ 75.565255][ T4332] arch_do_signal_or_restart+0xe7/0x12c0 [ 75.571427][ T4332] exit_to_user_mode_loop+0x9e/0x130 [ 75.577251][ T4332] exit_to_user_mode_prepare+0xee/0x180 [ 75.583335][ T4332] syscall_exit_to_user_mode+0x16/0x40 [ 75.589533][ T4332] do_syscall_64+0x58/0xa0 [ 75.594510][ T4332] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.600947][ T4332] [ 75.600947][ T4332] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 75.608905][ T4332] __mutex_lock_common+0x1e3/0x2400 [ 75.614904][ T4332] mutex_lock_nested+0x17/0x20 [ 75.620270][ T4332] bg_scan_update+0x44/0x3b0 [ 75.625388][ T4332] process_one_work+0x85f/0x1010 [ 75.630844][ T4332] worker_thread+0xaa6/0x1290 [ 75.636132][ T4332] kthread+0x436/0x520 [ 75.640747][ T4332] ret_from_fork+0x1f/0x30 [ 75.645696][ T4332] [ 75.645696][ T4332] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 75.655499][ T4332] __lock_acquire+0x2c42/0x7d10 [ 75.660997][ T4332] lock_acquire+0x19e/0x400 [ 75.666034][ T4332] __flush_work+0x116/0x210 [ 75.671056][ T4332] __cancel_work_timer+0x3f4/0x560 [ 75.676678][ T4332] hci_request_cancel_all+0xcc/0x300 [ 75.682643][ T4332] hci_dev_do_close+0x4e/0x1030 [ 75.688029][ T4332] hci_rfkill_set_block+0x10a/0x190 [ 75.693780][ T4332] rfkill_set_block+0x1c6/0x420 [ 75.699417][ T4332] rfkill_fop_write+0x452/0x560 [ 75.704955][ T4332] vfs_write+0x30b/0xd60 [ 75.709737][ T4332] ksys_write+0x152/0x260 [ 75.714581][ T4332] do_syscall_64+0x4c/0xa0 [ 75.719532][ T4332] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.725959][ T4332] [ 75.725959][ T4332] other info that might help us debug this: [ 75.725959][ T4332] [ 75.736206][ T4332] Chain exists of: [ 75.736206][ T4332] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 75.736206][ T4332] [ 75.752156][ T4332] Possible unsafe locking scenario: [ 75.752156][ T4332] [ 75.759681][ T4332] CPU0 CPU1 [ 75.765037][ T4332] ---- ---- [ 75.770390][ T4332] lock(rfkill_global_mutex); [ 75.775329][ T4332] lock(&data->open_mutex); [ 75.782454][ T4332] lock(rfkill_global_mutex); [ 75.789851][ T4332] lock((work_completion)(&hdev->bg_scan_update)); [ 75.796428][ T4332] [ 75.796428][ T4332] *** DEADLOCK *** [ 75.796428][ T4332] [ 75.804645][ T4332] 1 lock held by syz.0.17/4332: [ 75.809482][ T4332] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 75.819566][ T4332] [ 75.819566][ T4332] stack backtrace: [ 75.825464][ T4332] CPU: 0 PID: 4332 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.832649][ T4332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 75.845927][ T4332] Call Trace: [ 75.849224][ T4332] [ 75.852190][ T4332] dump_stack_lvl+0x188/0x250 [ 75.856979][ T4332] ? load_image+0x400/0x400 [ 75.861604][ T4332] ? show_regs_print_info+0x20/0x20 [ 75.866905][ T4332] ? print_circular_bug+0x12b/0x1a0 [ 75.872117][ T4332] check_noncircular+0x296/0x330 [ 75.877055][ T4332] ? look_up_lock_class+0x71/0x110 [ 75.882246][ T4332] ? add_chain_block+0x940/0x940 [ 75.887274][ T4332] ? lockdep_lock+0xf1/0x1f0 [ 75.891870][ T4332] ? __lock_acquire+0x12e8/0x7d10 [ 75.896886][ T4332] ? mark_lock+0x94/0x320 [ 75.901210][ T4332] __lock_acquire+0x2c42/0x7d10 [ 75.906074][ T4332] ? verify_lock_unused+0x140/0x140 [ 75.911279][ T4332] ? verify_lock_unused+0x140/0x140 [ 75.916505][ T4332] ? mark_lock+0x94/0x320 [ 75.920917][ T4332] lock_acquire+0x19e/0x400 [ 75.925413][ T4332] ? __flush_work+0xfa/0x210 [ 75.930100][ T4332] ? __lock_acquire+0x7d10/0x7d10 [ 75.935128][ T4332] ? read_lock_is_recursive+0x10/0x10 [ 75.940599][ T4332] ? start_flush_work+0x776/0x820 [ 75.945617][ T4332] __flush_work+0x116/0x210 [ 75.950112][ T4332] ? __flush_work+0xfa/0x210 [ 75.954689][ T4332] ? flush_work+0x20/0x20 [ 75.959008][ T4332] ? try_to_grab_pending+0xfa/0x7f0 [ 75.964197][ T4332] ? mark_lock+0x94/0x320 [ 75.968612][ T4332] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 75.974603][ T4332] ? lock_chain_count+0x20/0x20 [ 75.979616][ T4332] ? mark_lock+0x94/0x320 [ 75.984075][ T4332] ? __cancel_work_timer+0x36a/0x560 [ 75.989521][ T4332] __cancel_work_timer+0x3f4/0x560 [ 75.994757][ T4332] ? cancel_work_sync+0x20/0x20 [ 75.999714][ T4332] ? __cancel_work+0x1f9/0x2e0 [ 76.004475][ T4332] ? lockdep_hardirqs_on+0x94/0x140 [ 76.009852][ T4332] ? __cancel_work+0x27b/0x2e0 [ 76.014709][ T4332] ? cancel_work+0x20/0x20 [ 76.019561][ T4332] ? lock_chain_count+0x20/0x20 [ 76.024523][ T4332] hci_request_cancel_all+0xcc/0x300 [ 76.029817][ T4332] hci_dev_do_close+0x4e/0x1030 [ 76.034945][ T4332] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 76.040842][ T4332] ? _raw_spin_unlock+0x40/0x40 [ 76.045683][ T4332] hci_rfkill_set_block+0x10a/0x190 [ 76.050976][ T4332] ? rcu_lock_release+0x20/0x20 [ 76.055825][ T4332] rfkill_set_block+0x1c6/0x420 [ 76.060775][ T4332] rfkill_fop_write+0x452/0x560 [ 76.065713][ T4332] ? rfkill_fop_read+0x4d0/0x4d0 [ 76.070679][ T4332] ? common_file_perm+0x110/0x1c0 [ 76.075713][ T4332] ? fsnotify_perm+0x5d/0x560 [ 76.080683][ T4332] ? security_file_permission+0x75/0xa0 [ 76.086240][ T4332] ? rfkill_fop_read+0x4d0/0x4d0 [ 76.091196][ T4332] vfs_write+0x30b/0xd60 [ 76.095442][ T4332] ? file_end_write+0x250/0x250 [ 76.100285][ T4332] ? __context_tracking_exit+0x4c/0x80 [ 76.105748][ T4332] ? __lock_acquire+0x7d10/0x7d10 [ 76.111013][ T4332] ? __fdget_pos+0x1e2/0x370 [ 76.115719][ T4332] ksys_write+0x152/0x260 [ 76.120330][ T4332] ? __ia32_sys_read+0x80/0x80 [ 76.125092][ T4332] ? lockdep_hardirqs_on+0x94/0x140 [ 76.130395][ T4332] do_syscall_64+0x4c/0xa0 [ 76.134804][ T4332] ? clear_bhb_loop+0x30/0x80 [ 76.139483][ T4332] ? clear_bhb_loop+0x30/0x80 [ 76.144154][ T4332] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.150085][ T4332] RIP: 0033:0x7f29349a3819 [ 76.154507][ T4332] 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 [ 76.174770][ T4332] RSP: 002b:00007fff0caca088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.183461][ T4332] RAX: ffffffffffffffda RBX: 00007f2934c1cfa0 RCX: 00007f29349a3819 [ 76.191444][ T4332] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 76.199411][ T4332] RBP: 00007f2934a39c91 R08: 0000000000000000 R09: 0000000000000000 [ 76.207375][ T4332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.215342][ T4332] R13: 00007f2934c1cfac R14: 00007f2934c1cfa0 R15: 00007f2934c1cfa0 [ 76.223332][ T4332]