Warning: Permanently added '10.128.0.9' (ED25519) to the list of known hosts. 2026/05/25 16:16:03 parsed 1 programs [ 67.282438][ T4201] cgroup: Unknown subsys name 'net' [ 67.424289][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.918945][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.061179][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.068661][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.512404][ T4245] chnl_net:caif_netlink_parms(): no params data found [ 71.583314][ T4245] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.591278][ T4245] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.601182][ T4245] device bridge_slave_0 entered promiscuous mode [ 71.611499][ T4245] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.620156][ T4245] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.629159][ T4245] device bridge_slave_1 entered promiscuous mode [ 71.662840][ T4245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.674703][ T4245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.706622][ T4245] team0: Port device team_slave_0 added [ 71.715643][ T4245] team0: Port device team_slave_1 added [ 71.738215][ T4245] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.745222][ T4245] 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. [ 71.771316][ T4245] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.784754][ T4245] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.791950][ T4245] 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. [ 71.818036][ T4245] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.858628][ T4245] device hsr_slave_0 entered promiscuous mode [ 71.866231][ T4245] device hsr_slave_1 entered promiscuous mode [ 72.008653][ T4245] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.021556][ T4245] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.033415][ T4245] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.043482][ T4245] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.077206][ T4245] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.084464][ T4245] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.092555][ T4245] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.099801][ T4245] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.160306][ T4245] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.176538][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.190124][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.198923][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.207773][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.224928][ T4245] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.238719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.247823][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.254944][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.267192][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.276552][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.283731][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.309408][ T1439] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.320332][ T1439] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.346920][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.355528][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.371568][ T4245] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.384465][ T4245] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.393568][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.497143][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.504676][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.530227][ T4245] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.558351][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.573005][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.596420][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.612770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.621684][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.630199][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.642621][ T4245] device veth0_vlan entered promiscuous mode [ 72.660460][ T4245] device veth1_vlan entered promiscuous mode [ 72.694910][ T4245] device veth0_macvtap entered promiscuous mode [ 72.709279][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.718291][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.726560][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.738078][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.747200][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.760985][ T4245] device veth1_macvtap entered promiscuous mode [ 72.779188][ T4245] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.787658][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.795754][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.804882][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.816427][ T4245] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.829822][ T4245] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.839243][ T4245] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.849280][ T4245] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.859366][ T4245] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.871412][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.880240][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.733971][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.746147][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.771256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.801326][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.811020][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.819487][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/25 16:16:12 executed programs: 0 [ 75.059470][ T4303] chnl_net:caif_netlink_parms(): no params data found [ 75.125233][ T4303] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.132686][ T4303] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.140912][ T4303] device bridge_slave_0 entered promiscuous mode [ 75.149290][ T4303] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.156436][ T4303] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.164752][ T4303] device bridge_slave_1 entered promiscuous mode [ 75.189314][ T4303] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.200792][ T4303] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.223880][ T4303] team0: Port device team_slave_0 added [ 75.231839][ T4303] team0: Port device team_slave_1 added [ 75.249371][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.256380][ T4303] 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. [ 75.282732][ T4303] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.296985][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.304142][ T4303] 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. [ 75.330211][ T4303] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.368653][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.389020][ T4303] device hsr_slave_0 entered promiscuous mode [ 75.395791][ T4303] device hsr_slave_1 entered promiscuous mode [ 75.402555][ T4303] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.410461][ T4303] Cannot create hsr debugfs directory [ 76.978119][ T4270] Bluetooth: hci0: command 0x0409 tx timeout [ 77.693968][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.733704][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.774188][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.589625][ T4303] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.603121][ T4303] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.612914][ T4303] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.622619][ T4303] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.720914][ T4303] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.734175][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.742494][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.754356][ T4303] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.771407][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.781477][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.790256][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.797466][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.827816][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.836361][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.845566][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.854434][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.861607][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.874244][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.887651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.900961][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.910638][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.925656][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.934015][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.943260][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.953483][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.962300][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.999685][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.008492][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.021241][ T4303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.057042][ T23] Bluetooth: hci0: command 0x041b tx timeout [ 79.171304][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.179507][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.193526][ T4303] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.212998][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.222190][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.261807][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.270403][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.281736][ T4303] device veth0_vlan entered promiscuous mode [ 79.289794][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.298337][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.312805][ T4303] device veth1_vlan entered promiscuous mode [ 79.342122][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.352044][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.360765][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.369721][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.390064][ T4303] device veth0_macvtap entered promiscuous mode [ 79.399697][ T4303] device veth1_macvtap entered promiscuous mode [ 79.414364][ T4303] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 79.425724][ T4303] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.438160][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.445654][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.454516][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.462821][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.471888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.489461][ T4303] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 79.500751][ T4303] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.513525][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.522657][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.531628][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.548175][ T154] device hsr_slave_0 left promiscuous mode [ 79.554970][ T154] device hsr_slave_1 left promiscuous mode [ 79.562176][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.570722][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.579912][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.587475][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.595148][ T154] device bridge_slave_1 left promiscuous mode [ 79.602554][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.616103][ T154] device bridge_slave_0 left promiscuous mode [ 79.623302][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.643290][ T154] device veth1_macvtap left promiscuous mode [ 79.649737][ T154] device veth0_macvtap left promiscuous mode [ 79.655795][ T154] device veth1_vlan left promiscuous mode [ 79.662685][ T154] device veth0_vlan left promiscuous mode [ 79.849822][ T154] team0 (unregistering): Port device team_slave_1 removed [ 79.864671][ T154] team0 (unregistering): Port device team_slave_0 removed [ 79.879696][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.898975][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.960900][ T154] bond0 (unregistering): Released all slaves [ 80.024738][ T4303] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.033664][ T4303] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.042768][ T4303] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.051642][ T4303] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.135644][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.145254][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.155013][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.195236][ T4291] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.204565][ T4291] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.212492][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.315503][ T4346] [ 80.317887][ T4346] ====================================================== [ 80.324923][ T4346] WARNING: possible circular locking dependency detected [ 80.331981][ T4346] syzkaller #0 Not tainted [ 80.336426][ T4346] ------------------------------------------------------ [ 80.343469][ T4346] syz.0.17/4346 is trying to acquire lock: [ 80.349304][ T4346] ffff88802a760c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 80.360409][ T4346] [ 80.360409][ T4346] but task is already holding lock: [ 80.367805][ T4346] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.377507][ T4346] [ 80.377507][ T4346] which lock already depends on the new lock. [ 80.377507][ T4346] [ 80.387985][ T4346] [ 80.387985][ T4346] the existing dependency chain (in reverse order) is: [ 80.397031][ T4346] [ 80.397031][ T4346] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.405061][ T4346] __mutex_lock_common+0x1e3/0x2400 [ 80.410826][ T4346] mutex_lock_nested+0x17/0x20 [ 80.416162][ T4346] rfkill_register+0x33/0x980 [ 80.421399][ T4346] hci_register_dev+0x452/0x970 [ 80.426809][ T4346] vhci_create_device+0x32c/0x5c0 [ 80.432390][ T4346] vhci_write+0x391/0x450 [ 80.437276][ T4346] vfs_write+0x745/0xd60 [ 80.442076][ T4346] ksys_write+0x152/0x260 [ 80.446961][ T4346] do_syscall_64+0x4c/0xa0 [ 80.452085][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.458694][ T4346] [ 80.458694][ T4346] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.466557][ T4346] __mutex_lock_common+0x1e3/0x2400 [ 80.472331][ T4346] mutex_lock_nested+0x17/0x20 [ 80.477658][ T4346] vhci_send_frame+0x88/0x100 [ 80.482903][ T4346] hci_send_frame+0x1a9/0x2e0 [ 80.488138][ T4346] hci_tx_work+0x9f9/0x1710 [ 80.493208][ T4346] process_one_work+0x85f/0x1010 [ 80.498706][ T4346] worker_thread+0xaa6/0x1290 [ 80.504002][ T4346] kthread+0x436/0x520 [ 80.508637][ T4346] ret_from_fork+0x1f/0x30 [ 80.513609][ T4346] [ 80.513609][ T4346] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.522857][ T4346] __flush_work+0x116/0x210 [ 80.527929][ T4346] hci_dev_do_close+0x1e7/0x1030 [ 80.533427][ T4346] hci_unregister_dev+0x2d7/0x580 [ 80.539011][ T4346] vhci_release+0x73/0xc0 [ 80.543899][ T4346] __fput+0x234/0x930 [ 80.548432][ T4346] task_work_run+0x125/0x1a0 [ 80.553580][ T4346] do_exit+0x626/0x20c0 [ 80.558283][ T4346] do_group_exit+0x12e/0x300 [ 80.563421][ T4346] get_signal+0x6d6/0x12d0 [ 80.568391][ T4346] arch_do_signal_or_restart+0xe7/0x12c0 [ 80.574583][ T4346] exit_to_user_mode_loop+0x9e/0x130 [ 80.580431][ T4346] exit_to_user_mode_prepare+0xee/0x180 [ 80.586533][ T4346] syscall_exit_to_user_mode+0x16/0x40 [ 80.592554][ T4346] do_syscall_64+0x58/0xa0 [ 80.597529][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.603987][ T4346] [ 80.603987][ T4346] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 80.611669][ T4346] __mutex_lock_common+0x1e3/0x2400 [ 80.617432][ T4346] mutex_lock_nested+0x17/0x20 [ 80.622765][ T4346] bg_scan_update+0x44/0x3b0 [ 80.627923][ T4346] process_one_work+0x85f/0x1010 [ 80.633420][ T4346] worker_thread+0xaa6/0x1290 [ 80.638651][ T4346] kthread+0x436/0x520 [ 80.643269][ T4346] ret_from_fork+0x1f/0x30 [ 80.648259][ T4346] [ 80.648259][ T4346] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 80.658109][ T4346] __lock_acquire+0x2c42/0x7d10 [ 80.663534][ T4346] lock_acquire+0x19e/0x400 [ 80.668607][ T4346] __flush_work+0x116/0x210 [ 80.673671][ T4346] __cancel_work_timer+0x3f4/0x560 [ 80.679338][ T4346] hci_request_cancel_all+0xcc/0x300 [ 80.685183][ T4346] hci_dev_do_close+0x4e/0x1030 [ 80.690590][ T4346] hci_rfkill_set_block+0x10a/0x190 [ 80.696346][ T4346] rfkill_set_block+0x1c9/0x3d0 [ 80.701758][ T4346] rfkill_fop_write+0x452/0x560 [ 80.707171][ T4346] vfs_write+0x30b/0xd60 [ 80.711972][ T4346] ksys_write+0x152/0x260 [ 80.716857][ T4346] do_syscall_64+0x4c/0xa0 [ 80.721835][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.728473][ T4346] [ 80.728473][ T4346] other info that might help us debug this: [ 80.728473][ T4346] [ 80.738727][ T4346] Chain exists of: [ 80.738727][ T4346] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 80.738727][ T4346] [ 80.754495][ T4346] Possible unsafe locking scenario: [ 80.754495][ T4346] [ 80.761975][ T4346] CPU0 CPU1 [ 80.767365][ T4346] ---- ---- [ 80.772763][ T4346] lock(rfkill_global_mutex); [ 80.777692][ T4346] lock(&data->open_mutex); [ 80.784851][ T4346] lock(rfkill_global_mutex); [ 80.792169][ T4346] lock((work_completion)(&hdev->bg_scan_update)); [ 80.798788][ T4346] [ 80.798788][ T4346] *** DEADLOCK *** [ 80.798788][ T4346] [ 80.806964][ T4346] 1 lock held by syz.0.17/4346: [ 80.811846][ T4346] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.822001][ T4346] [ 80.822001][ T4346] stack backtrace: [ 80.827932][ T4346] CPU: 0 PID: 4346 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.835164][ T4346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.845256][ T4346] Call Trace: [ 80.848567][ T4346] [ 80.851518][ T4346] dump_stack_lvl+0x188/0x250 [ 80.856227][ T4346] ? load_image+0x400/0x400 [ 80.860763][ T4346] ? show_regs_print_info+0x20/0x20 [ 80.866023][ T4346] ? print_circular_bug+0x12b/0x1a0 [ 80.871268][ T4346] check_noncircular+0x296/0x330 [ 80.876262][ T4346] ? look_up_lock_class+0x71/0x110 [ 80.881413][ T4346] ? add_chain_block+0x940/0x940 [ 80.886388][ T4346] ? lockdep_lock+0xf1/0x1f0 [ 80.891018][ T4346] ? __lock_acquire+0x12e8/0x7d10 [ 80.896074][ T4346] ? mark_lock+0x94/0x320 [ 80.900434][ T4346] __lock_acquire+0x2c42/0x7d10 [ 80.905331][ T4346] ? verify_lock_unused+0x140/0x140 [ 80.910581][ T4346] ? verify_lock_unused+0x140/0x140 [ 80.915833][ T4346] ? mark_lock+0x94/0x320 [ 80.920200][ T4346] lock_acquire+0x19e/0x400 [ 80.924833][ T4346] ? __flush_work+0xfa/0x210 [ 80.929462][ T4346] ? __lock_acquire+0x7d10/0x7d10 [ 80.934528][ T4346] ? read_lock_is_recursive+0x10/0x10 [ 80.939943][ T4346] ? start_flush_work+0x776/0x820 [ 80.945023][ T4346] __flush_work+0x116/0x210 [ 80.949561][ T4346] ? __flush_work+0xfa/0x210 [ 80.954188][ T4346] ? flush_work+0x20/0x20 [ 80.958561][ T4346] ? try_to_grab_pending+0xfa/0x7f0 [ 80.963803][ T4346] ? mark_lock+0x94/0x320 [ 80.968172][ T4346] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 80.974190][ T4346] ? lock_chain_count+0x20/0x20 [ 80.979082][ T4346] ? mark_lock+0x94/0x320 [ 80.983451][ T4346] ? __cancel_work_timer+0x36a/0x560 [ 80.988770][ T4346] __cancel_work_timer+0x3f4/0x560 [ 80.993926][ T4346] ? cancel_work_sync+0x20/0x20 [ 80.998820][ T4346] ? __cancel_work+0x1f9/0x2e0 [ 81.003619][ T4346] ? lockdep_hardirqs_on+0x94/0x140 [ 81.008858][ T4346] ? __cancel_work+0x27b/0x2e0 [ 81.013660][ T4346] ? cancel_work+0x20/0x20 [ 81.018122][ T4346] ? lock_chain_count+0x20/0x20 [ 81.023012][ T4346] hci_request_cancel_all+0xcc/0x300 [ 81.028335][ T4346] hci_dev_do_close+0x4e/0x1030 [ 81.033219][ T4346] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.039181][ T4346] ? _raw_spin_unlock+0x40/0x40 [ 81.044072][ T4346] hci_rfkill_set_block+0x10a/0x190 [ 81.049312][ T4346] ? rcu_lock_release+0x20/0x20 [ 81.054200][ T4346] rfkill_set_block+0x1c9/0x3d0 [ 81.059098][ T4346] rfkill_fop_write+0x452/0x560 [ 81.063987][ T4346] ? rfkill_fop_read+0x520/0x520 [ 81.068955][ T4346] ? common_file_perm+0xc0/0x1c0 [ 81.073946][ T4346] ? fsnotify_perm+0x5d/0x560 [ 81.078660][ T4346] ? security_file_permission+0x75/0xa0 [ 81.084242][ T4346] ? rfkill_fop_read+0x520/0x520 [ 81.089216][ T4346] vfs_write+0x30b/0xd60 [ 81.093493][ T4346] ? file_end_write+0x250/0x250 [ 81.098383][ T4346] ? __context_tracking_exit+0x4c/0x80 [ 81.103890][ T4346] ? __lock_acquire+0x7d10/0x7d10 [ 81.108958][ T4346] ? __fdget_pos+0x1e2/0x370 [ 81.113596][ T4346] ksys_write+0x152/0x260 [ 81.117962][ T4346] ? __ia32_sys_read+0x80/0x80 [ 81.122772][ T4346] ? lockdep_hardirqs_on+0x94/0x140 [ 81.128022][ T4346] do_syscall_64+0x4c/0xa0 [ 81.132471][ T4346] ? clear_bhb_loop+0x30/0x80 [ 81.137179][ T4346] ? clear_bhb_loop+0x30/0x80 [ 81.141891][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.147839][ T4346] RIP: 0033:0x7f9466df6e59 [ 81.152286][ T4346] 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 [ 81.159786][ T23] Bluetooth: hci0: command 0x040f tx timeout [ 81.171925][ T4346] RSP: 002b:00007ffdcf27bb98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.171949][ T4346] RAX: ffffffffffffffda RBX: 00007f946706ffa0 RCX: 00007f9466df6e59 [ 81.171964][ T4346] RDX: 0000000000000008 RSI: 00002000000000c0 RDI: 0000000000000003 [ 81.202367][ T4346] RBP: 00007f9466e8cd6f R08: 0000000000000000 R09: 0000000000000000 [ 81.210380][ T4346] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.218392][ T4346] R13: 00007f946706ffac R14: 00007f946706ffa0 R15: 00007f946706ffa0 [ 81.226416][ T4346]