Warning: Permanently added '10.128.0.146' (ED25519) to the list of known hosts. 2026/03/21 02:52:28 parsed 1 programs [ 72.018619][ T4188] cgroup: Unknown subsys name 'net' [ 72.149856][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 73.694356][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.219484][ T4224] chnl_net:caif_netlink_parms(): no params data found [ 76.284861][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.292668][ T4224] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.301273][ T4224] device bridge_slave_0 entered promiscuous mode [ 76.311269][ T4224] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.318497][ T4224] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.326914][ T4224] device bridge_slave_1 entered promiscuous mode [ 76.353705][ T4224] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.365489][ T4224] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.393814][ T4224] team0: Port device team_slave_0 added [ 76.401682][ T4224] team0: Port device team_slave_1 added [ 76.425354][ T4224] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.432345][ T4224] 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. [ 76.458416][ T4224] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.471824][ T4224] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.478915][ T4224] 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. [ 76.505316][ T4224] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.545402][ T4224] device hsr_slave_0 entered promiscuous mode [ 76.552341][ T4224] device hsr_slave_1 entered promiscuous mode [ 76.690209][ T4224] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.702298][ T4224] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.712910][ T4224] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.723558][ T4224] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.757557][ T4224] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.764979][ T4224] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.773056][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.780213][ T4224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.840113][ T4224] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.858697][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.870837][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.879745][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.889732][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.906057][ T4224] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.918967][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.927881][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.935057][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.953803][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.962932][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.970058][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.996700][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.008294][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.024645][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.035079][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.050242][ T4224] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.063025][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.071896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.206308][ T4224] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.214674][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.222203][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.247046][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.256739][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.279135][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.288888][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.300893][ T4224] device veth0_vlan entered promiscuous mode [ 77.310503][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.318722][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.331511][ T4224] device veth1_vlan entered promiscuous mode [ 77.350699][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.359242][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.368181][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.378900][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.390787][ T4224] device veth0_macvtap entered promiscuous mode [ 77.403407][ T4224] device veth1_macvtap entered promiscuous mode [ 77.431239][ T4224] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.443738][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.452078][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.460985][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.470578][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.484082][ T4224] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.491393][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.505207][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.520763][ T4224] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.532049][ T4224] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.542428][ T4224] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.555796][ T4224] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.052319][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.064493][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.075500][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.108877][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.117119][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.125978][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/03/21 02:52:38 executed programs: 0 [ 79.914089][ T4286] chnl_net:caif_netlink_parms(): no params data found [ 79.968222][ T4286] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.975440][ T4286] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.983837][ T4286] device bridge_slave_0 entered promiscuous mode [ 79.992155][ T4286] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.000424][ T4286] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.008983][ T4286] device bridge_slave_1 entered promiscuous mode [ 80.029638][ T4286] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.041037][ T4286] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.076306][ T4286] team0: Port device team_slave_0 added [ 80.089601][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.108014][ T4286] team0: Port device team_slave_1 added [ 80.126043][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.133117][ T4286] 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. [ 80.159457][ T4286] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.172238][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.179531][ T4286] 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. [ 80.205997][ T4286] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.241878][ T4286] device hsr_slave_0 entered promiscuous mode [ 80.249686][ T4286] device hsr_slave_1 entered promiscuous mode [ 80.256544][ T4286] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 80.264658][ T4286] Cannot create hsr debugfs directory [ 81.843961][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 83.070248][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.119537][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.161959][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.924197][ T4241] Bluetooth: hci0: command 0x041b tx timeout [ 83.965215][ T4286] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.975557][ T4286] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.986374][ T4286] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.995734][ T4286] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.084412][ T4286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.097243][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.105149][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.119089][ T4286] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.152895][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.162410][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.172325][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.180127][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.189026][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.223640][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.232960][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.242032][ T4254] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.249172][ T4254] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.260316][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.298372][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.310509][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.319618][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.329305][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.340727][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.350546][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.367269][ T4286] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 84.377974][ T4286] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.396212][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.404963][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.413677][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.422138][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.430778][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.548340][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.556103][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.569054][ T4286] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.614601][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.624864][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.664626][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.673967][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.682736][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.691201][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.701240][ T4286] device veth0_vlan entered promiscuous mode [ 84.731686][ T4286] device veth1_vlan entered promiscuous mode [ 84.751168][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.759566][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.767921][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.777942][ T1281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.791803][ T4286] device veth0_macvtap entered promiscuous mode [ 84.802900][ T4286] device veth1_macvtap entered promiscuous mode [ 84.835750][ T4286] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 84.846480][ T4286] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 84.858168][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.869134][ T4286] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 84.880101][ T4286] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 84.891299][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.899059][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.907803][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.916224][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.926181][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.935880][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.945012][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.961809][ T4286] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.970984][ T4286] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.985376][ T4286] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.994547][ T4286] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.068507][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.080016][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.088898][ T4254] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.106267][ T155] device hsr_slave_0 left promiscuous mode [ 85.113195][ T155] device hsr_slave_1 left promiscuous mode [ 85.119968][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.128005][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.137762][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.145254][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.152876][ T155] device bridge_slave_1 left promiscuous mode [ 85.160083][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.174532][ T155] device bridge_slave_0 left promiscuous mode [ 85.180756][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.198794][ T155] device veth1_macvtap left promiscuous mode [ 85.206390][ T155] device veth0_macvtap left promiscuous mode [ 85.212472][ T155] device veth1_vlan left promiscuous mode [ 85.219423][ T155] device veth0_vlan left promiscuous mode [ 85.412981][ T155] team0 (unregistering): Port device team_slave_1 removed [ 85.427231][ T155] team0 (unregistering): Port device team_slave_0 removed [ 85.440990][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.457152][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.517713][ T155] bond0 (unregistering): Released all slaves [ 85.618811][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.626876][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.634853][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.790060][ T4345] [ 85.792449][ T4345] ====================================================== [ 85.799490][ T4345] WARNING: possible circular locking dependency detected [ 85.806546][ T4345] syzkaller #0 Not tainted [ 85.811018][ T4345] ------------------------------------------------------ [ 85.818069][ T4345] syz.0.17/4345 is trying to acquire lock: [ 85.823890][ T4345] ffff888073bacc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 85.835167][ T4345] [ 85.835167][ T4345] but task is already holding lock: [ 85.842554][ T4345] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 85.852261][ T4345] [ 85.852261][ T4345] which lock already depends on the new lock. [ 85.852261][ T4345] [ 85.862791][ T4345] [ 85.862791][ T4345] the existing dependency chain (in reverse order) is: [ 85.871829][ T4345] [ 85.871829][ T4345] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.879948][ T4345] __mutex_lock_common+0x1e3/0x2400 [ 85.885710][ T4345] mutex_lock_nested+0x17/0x20 [ 85.891208][ T4345] rfkill_register+0x33/0x8a0 [ 85.896438][ T4345] hci_register_dev+0x452/0x970 [ 85.901929][ T4345] vhci_create_device+0x32c/0x5c0 [ 85.907602][ T4345] vhci_write+0x391/0x450 [ 85.912484][ T4345] vfs_write+0x745/0xd60 [ 85.917276][ T4345] ksys_write+0x152/0x260 [ 85.922150][ T4345] do_syscall_64+0x4c/0xa0 [ 85.927202][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.933653][ T4345] [ 85.933653][ T4345] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.941506][ T4345] __mutex_lock_common+0x1e3/0x2400 [ 85.947262][ T4345] mutex_lock_nested+0x17/0x20 [ 85.952572][ T4345] vhci_send_frame+0x88/0x100 [ 85.957813][ T4345] hci_send_frame+0x1a9/0x2e0 [ 85.963054][ T4345] hci_tx_work+0x9f9/0x1710 [ 85.968113][ T4345] process_one_work+0x85f/0x1010 [ 85.973601][ T4345] worker_thread+0xaa6/0x1290 [ 85.978827][ T4345] kthread+0x436/0x520 [ 85.983442][ T4345] ret_from_fork+0x1f/0x30 [ 85.988414][ T4345] [ 85.988414][ T4345] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.997652][ T4345] __flush_work+0x116/0x210 [ 86.002709][ T4345] hci_dev_do_close+0x1e7/0x1030 [ 86.003440][ T4242] Bluetooth: hci0: command 0x040f tx timeout [ 86.008249][ T4345] hci_unregister_dev+0x2d7/0x580 [ 86.019910][ T4345] vhci_release+0x73/0xc0 [ 86.024802][ T4345] __fput+0x234/0x930 [ 86.029458][ T4345] task_work_run+0x125/0x1a0 [ 86.034732][ T4345] do_exit+0x626/0x20c0 [ 86.039441][ T4345] do_group_exit+0x12e/0x300 [ 86.044582][ T4345] get_signal+0x6ca/0x12c0 [ 86.049559][ T4345] arch_do_signal_or_restart+0xe7/0x12c0 [ 86.055749][ T4345] exit_to_user_mode_loop+0x9e/0x130 [ 86.061589][ T4345] exit_to_user_mode_prepare+0xee/0x180 [ 86.067777][ T4345] syscall_exit_to_user_mode+0x16/0x40 [ 86.073804][ T4345] do_syscall_64+0x58/0xa0 [ 86.078775][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.085319][ T4345] [ 86.085319][ T4345] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 86.092998][ T4345] __mutex_lock_common+0x1e3/0x2400 [ 86.098896][ T4345] mutex_lock_nested+0x17/0x20 [ 86.104266][ T4345] bg_scan_update+0x44/0x3b0 [ 86.109416][ T4345] process_one_work+0x85f/0x1010 [ 86.115100][ T4345] worker_thread+0xaa6/0x1290 [ 86.120339][ T4345] kthread+0x436/0x520 [ 86.125151][ T4345] ret_from_fork+0x1f/0x30 [ 86.130148][ T4345] [ 86.130148][ T4345] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.140124][ T4345] __lock_acquire+0x2c42/0x7d10 [ 86.145563][ T4345] lock_acquire+0x19e/0x400 [ 86.150630][ T4345] __flush_work+0x116/0x210 [ 86.156118][ T4345] __cancel_work_timer+0x3f4/0x560 [ 86.161881][ T4345] hci_request_cancel_all+0xcc/0x300 [ 86.167879][ T4345] hci_dev_do_close+0x4e/0x1030 [ 86.173288][ T4345] hci_rfkill_set_block+0x10a/0x190 [ 86.179042][ T4345] rfkill_set_block+0x1c6/0x420 [ 86.184445][ T4345] rfkill_fop_write+0x452/0x560 [ 86.189857][ T4345] vfs_write+0x30b/0xd60 [ 86.194648][ T4345] ksys_write+0x152/0x260 [ 86.199523][ T4345] do_syscall_64+0x4c/0xa0 [ 86.204579][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.211026][ T4345] [ 86.211026][ T4345] other info that might help us debug this: [ 86.211026][ T4345] [ 86.221273][ T4345] Chain exists of: [ 86.221273][ T4345] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.221273][ T4345] [ 86.237036][ T4345] Possible unsafe locking scenario: [ 86.237036][ T4345] [ 86.244885][ T4345] CPU0 CPU1 [ 86.250284][ T4345] ---- ---- [ 86.255673][ T4345] lock(rfkill_global_mutex); [ 86.260473][ T4345] lock(&data->open_mutex); [ 86.267612][ T4345] lock(rfkill_global_mutex); [ 86.275121][ T4345] lock((work_completion)(&hdev->bg_scan_update)); [ 86.281843][ T4345] [ 86.281843][ T4345] *** DEADLOCK *** [ 86.281843][ T4345] [ 86.290012][ T4345] 1 lock held by syz.0.17/4345: [ 86.294891][ T4345] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 86.305125][ T4345] [ 86.305125][ T4345] stack backtrace: [ 86.311150][ T4345] CPU: 1 PID: 4345 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.318403][ T4345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 86.328493][ T4345] Call Trace: [ 86.331813][ T4345] [ 86.334855][ T4345] dump_stack_lvl+0x188/0x250 [ 86.339568][ T4345] ? load_image+0x400/0x400 [ 86.344099][ T4345] ? show_regs_print_info+0x20/0x20 [ 86.349333][ T4345] ? print_circular_bug+0x12b/0x1a0 [ 86.354566][ T4345] check_noncircular+0x296/0x330 [ 86.359625][ T4345] ? look_up_lock_class+0x71/0x110 [ 86.364785][ T4345] ? add_chain_block+0x940/0x940 [ 86.369843][ T4345] ? lockdep_lock+0xf1/0x1f0 [ 86.374558][ T4345] ? __lock_acquire+0x12e8/0x7d10 [ 86.379623][ T4345] ? mark_lock+0x94/0x320 [ 86.383978][ T4345] ? _find_first_zero_bit+0xce/0xf0 [ 86.389648][ T4345] __lock_acquire+0x2c42/0x7d10 [ 86.394540][ T4345] ? verify_lock_unused+0x140/0x140 [ 86.399781][ T4345] ? verify_lock_unused+0x140/0x140 [ 86.405015][ T4345] ? mark_lock+0x94/0x320 [ 86.409379][ T4345] lock_acquire+0x19e/0x400 [ 86.413924][ T4345] ? __flush_work+0xfa/0x210 [ 86.418561][ T4345] ? __lock_acquire+0x7d10/0x7d10 [ 86.423634][ T4345] ? read_lock_is_recursive+0x10/0x10 [ 86.429037][ T4345] ? start_flush_work+0x776/0x820 [ 86.434093][ T4345] __flush_work+0x116/0x210 [ 86.438627][ T4345] ? __flush_work+0xfa/0x210 [ 86.443246][ T4345] ? flush_work+0x20/0x20 [ 86.447607][ T4345] ? try_to_grab_pending+0xfa/0x7f0 [ 86.452834][ T4345] ? mark_lock+0x94/0x320 [ 86.457213][ T4345] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 86.463232][ T4345] ? lock_chain_count+0x20/0x20 [ 86.468119][ T4345] ? mark_lock+0x94/0x320 [ 86.472483][ T4345] ? __cancel_work_timer+0x36a/0x560 [ 86.477828][ T4345] __cancel_work_timer+0x3f4/0x560 [ 86.482971][ T4345] ? cancel_work_sync+0x20/0x20 [ 86.487855][ T4345] ? __cancel_work+0x1f9/0x2e0 [ 86.492653][ T4345] ? lockdep_hardirqs_on+0x94/0x140 [ 86.497882][ T4345] ? __cancel_work+0x27b/0x2e0 [ 86.502672][ T4345] ? cancel_work+0x20/0x20 [ 86.507130][ T4345] ? lock_chain_count+0x20/0x20 [ 86.512017][ T4345] hci_request_cancel_all+0xcc/0x300 [ 86.517340][ T4345] hci_dev_do_close+0x4e/0x1030 [ 86.522226][ T4345] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 86.528150][ T4345] ? _raw_spin_unlock+0x40/0x40 [ 86.533035][ T4345] hci_rfkill_set_block+0x10a/0x190 [ 86.538270][ T4345] ? rcu_lock_release+0x20/0x20 [ 86.543155][ T4345] rfkill_set_block+0x1c6/0x420 [ 86.548050][ T4345] rfkill_fop_write+0x452/0x560 [ 86.552939][ T4345] ? rfkill_fop_read+0x4d0/0x4d0 [ 86.557908][ T4345] ? common_file_perm+0x110/0x1c0 [ 86.562967][ T4345] ? fsnotify_perm+0x5d/0x560 [ 86.567675][ T4345] ? security_file_permission+0x75/0xa0 [ 86.573250][ T4345] ? rfkill_fop_read+0x4d0/0x4d0 [ 86.578216][ T4345] vfs_write+0x30b/0xd60 [ 86.582492][ T4345] ? file_end_write+0x250/0x250 [ 86.587382][ T4345] ? __context_tracking_exit+0x4c/0x80 [ 86.592874][ T4345] ? __lock_acquire+0x7d10/0x7d10 [ 86.597933][ T4345] ? __fdget_pos+0x1e2/0x370 [ 86.602549][ T4345] ksys_write+0x152/0x260 [ 86.606916][ T4345] ? __ia32_sys_read+0x80/0x80 [ 86.611706][ T4345] ? lockdep_hardirqs_on+0x94/0x140 [ 86.616944][ T4345] do_syscall_64+0x4c/0xa0 [ 86.621390][ T4345] ? clear_bhb_loop+0x30/0x80 [ 86.626198][ T4345] ? clear_bhb_loop+0x30/0x80 [ 86.630904][ T4345] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.636833][ T4345] RIP: 0033:0x7f509b1a8799 [ 86.641277][ 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 [ 86.660915][ T4345] RSP: 002b:00007ffe67d11c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.669367][ T4345] RAX: ffffffffffffffda RBX: 00007f509b421fa0 RCX: 00007f509b1a8799 [ 86.677379][ T4345] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 86.685385][ T4345] RBP: 00007f509b23ec99 R08: 0000000000000000 R09: 0000000000000000 [ 86.693381][ T4345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.701379][ T4345] R13: 00007f509b421fac R14: 00007f509b421fa0 R15: 00007f509b421fa0 [ 86.709390][ T4345] [ 86.729801][ T21] cfg80211: failed to load regulatory.db