Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. 2026/05/30 19:06:24 parsed 1 programs [ 68.995595][ T4200] cgroup: Unknown subsys name 'net' [ 69.124541][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.617059][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.502587][ T1431] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.509181][ T1431] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.977455][ T4235] chnl_net:caif_netlink_parms(): no params data found [ 73.043770][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.051587][ T4235] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.060123][ T4235] device bridge_slave_0 entered promiscuous mode [ 73.070251][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.077677][ T4235] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.086045][ T4235] device bridge_slave_1 entered promiscuous mode [ 73.117006][ T4235] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.129132][ T4235] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.158935][ T4235] team0: Port device team_slave_0 added [ 73.167853][ T4235] team0: Port device team_slave_1 added [ 73.190673][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.197966][ T4235] 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. [ 73.224651][ T4235] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.238497][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.245828][ T4235] 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. [ 73.272166][ T4235] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.311452][ T4235] device hsr_slave_0 entered promiscuous mode [ 73.318432][ T4235] device hsr_slave_1 entered promiscuous mode [ 73.464623][ T4235] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.476985][ T4235] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.487656][ T4235] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.498341][ T4235] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.530980][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.538416][ T4235] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.546491][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.553625][ T4235] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.618611][ T4235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.638900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.653070][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.662078][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.680035][ T4235] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.702007][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.711437][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.718704][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.726962][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.737480][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.744658][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.772603][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.783162][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.794948][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.804407][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.819981][ T4235] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.832969][ T4235] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.841778][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.979560][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.987585][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.001477][ T4235] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.023356][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.039338][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.082870][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.093382][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.108855][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.117311][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.134860][ T4235] device veth0_vlan entered promiscuous mode [ 74.150755][ T4235] device veth1_vlan entered promiscuous mode [ 74.168106][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.178022][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.186703][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.195871][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.207330][ T4235] device veth0_macvtap entered promiscuous mode [ 74.218387][ T4235] device veth1_macvtap entered promiscuous mode [ 74.234479][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.242360][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.250674][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.258547][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.267558][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.280562][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.301932][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.311689][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.323456][ T4235] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.333266][ T4235] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.342366][ T4235] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.351317][ T4235] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.446213][ T4235] syz-executor (4235) used greatest stack depth: 20848 bytes left [ 74.768202][ T4242] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.781136][ T4242] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.793084][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.812933][ T4242] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.822869][ T4242] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.831535][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/30 19:06:33 executed programs: 0 [ 76.551289][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.712580][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 76.751730][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.759798][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.767656][ T4297] device bridge_slave_0 entered promiscuous mode [ 76.777333][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.785051][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.793477][ T4297] device bridge_slave_1 entered promiscuous mode [ 76.811905][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.823167][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.843659][ T4297] team0: Port device team_slave_0 added [ 76.852628][ T4297] team0: Port device team_slave_1 added [ 76.868286][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.875521][ T4297] 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. [ 76.902627][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.915958][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.923083][ T4297] 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. [ 76.951170][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.979865][ T4297] device hsr_slave_0 entered promiscuous mode [ 76.987310][ T4297] device hsr_slave_1 entered promiscuous mode [ 76.995645][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.003900][ T4297] Cannot create hsr debugfs directory [ 78.709620][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 79.185537][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.244893][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.314884][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.081010][ T4297] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.090977][ T4297] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.100627][ T4297] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.110481][ T4297] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.155908][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.168220][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.181339][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.192718][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.228004][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.238375][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.248031][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.255248][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.264064][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.278120][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.287607][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.296596][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.304293][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.340303][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.349402][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.361454][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.371835][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.381899][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.414630][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.423633][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.435003][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.444049][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.477485][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.487038][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.500165][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.605566][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.613683][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.649804][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.667099][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.676669][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.725947][ T4297] device veth0_vlan entered promiscuous mode [ 80.733511][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.742767][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.753579][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.761764][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.774351][ T4297] device veth1_vlan entered promiscuous mode [ 80.782252][ T2301] Bluetooth: hci0: command 0x041b tx timeout [ 80.818646][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.827610][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.836525][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.847726][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.859865][ T4297] device veth0_macvtap entered promiscuous mode [ 80.889197][ T4297] device veth1_macvtap entered promiscuous mode [ 80.903957][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 80.915652][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.927845][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.937397][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.946577][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.954727][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.963313][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.975072][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 80.989293][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 81.000793][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.008126][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.018409][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.031042][ T4297] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.040760][ T4297] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.050144][ T4297] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.059836][ T4297] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.141304][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.157923][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.169437][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.198036][ T4242] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.206812][ T4242] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.215465][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.248228][ T155] device hsr_slave_0 left promiscuous mode [ 81.255985][ T155] device hsr_slave_1 left promiscuous mode [ 81.266645][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.275836][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.290246][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.299509][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.307979][ T155] device bridge_slave_1 left promiscuous mode [ 81.315675][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.328899][ T155] device bridge_slave_0 left promiscuous mode [ 81.335754][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.355878][ T155] device veth1_macvtap left promiscuous mode [ 81.362363][ T155] device veth0_macvtap left promiscuous mode [ 81.368684][ T155] device veth1_vlan left promiscuous mode [ 81.375566][ T155] device veth0_vlan left promiscuous mode [ 81.540720][ T155] team0 (unregistering): Port device team_slave_1 removed [ 81.554801][ T155] team0 (unregistering): Port device team_slave_0 removed [ 81.568518][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.585579][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.641829][ T155] bond0 (unregistering): Released all slaves [ 81.751482][ T1108] cfg80211: failed to load regulatory.db [ 81.760835][ T4353] [ 81.763420][ T4353] ====================================================== [ 81.770731][ T4353] WARNING: possible circular locking dependency detected [ 81.777941][ T4353] syzkaller #0 Not tainted [ 81.782381][ T4353] ------------------------------------------------------ [ 81.789779][ T4353] syz.0.17/4353 is trying to acquire lock: [ 81.795757][ T4353] ffff8880255a0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.807132][ T4353] [ 81.807132][ T4353] but task is already holding lock: [ 81.814620][ T4353] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.824721][ T4353] [ 81.824721][ T4353] which lock already depends on the new lock. [ 81.824721][ T4353] [ 81.835463][ T4353] [ 81.835463][ T4353] the existing dependency chain (in reverse order) is: [ 81.844700][ T4353] [ 81.844700][ T4353] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.852913][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 81.858756][ T4353] mutex_lock_nested+0x17/0x20 [ 81.864247][ T4353] rfkill_register+0x33/0x980 [ 81.869999][ T4353] hci_register_dev+0x452/0x970 [ 81.875578][ T4353] vhci_create_device+0x32c/0x5c0 [ 81.881370][ T4353] vhci_write+0x391/0x450 [ 81.886399][ T4353] vfs_write+0x745/0xd60 [ 81.891203][ T4353] ksys_write+0x152/0x260 [ 81.896378][ T4353] do_syscall_64+0x4c/0xa0 [ 81.901544][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.908175][ T4353] [ 81.908175][ T4353] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.916032][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 81.921787][ T4353] mutex_lock_nested+0x17/0x20 [ 81.927192][ T4353] vhci_send_frame+0x88/0x100 [ 81.932437][ T4353] hci_send_frame+0x1a9/0x2e0 [ 81.937674][ T4353] hci_tx_work+0x9f9/0x1710 [ 81.942751][ T4353] process_one_work+0x85f/0x1010 [ 81.948244][ T4353] worker_thread+0xaa6/0x1290 [ 81.953660][ T4353] kthread+0x436/0x520 [ 81.958377][ T4353] ret_from_fork+0x1f/0x30 [ 81.963526][ T4353] [ 81.963526][ T4353] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.972774][ T4353] __flush_work+0x116/0x210 [ 81.978023][ T4353] hci_dev_do_close+0x1e7/0x1030 [ 81.983696][ T4353] hci_unregister_dev+0x2d7/0x580 [ 81.989655][ T4353] vhci_release+0x73/0xc0 [ 81.994633][ T4353] __fput+0x234/0x930 [ 81.999397][ T4353] task_work_run+0x125/0x1a0 [ 82.004633][ T4353] do_exit+0x626/0x20c0 [ 82.009335][ T4353] do_group_exit+0x12e/0x300 [ 82.014655][ T4353] get_signal+0x6d6/0x12d0 [ 82.019756][ T4353] arch_do_signal_or_restart+0xe7/0x12c0 [ 82.026036][ T4353] exit_to_user_mode_loop+0x9e/0x130 [ 82.032007][ T4353] exit_to_user_mode_prepare+0xee/0x180 [ 82.038302][ T4353] syscall_exit_to_user_mode+0x16/0x40 [ 82.044843][ T4353] do_syscall_64+0x58/0xa0 [ 82.049810][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.056607][ T4353] [ 82.056607][ T4353] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.064376][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 82.070174][ T4353] mutex_lock_nested+0x17/0x20 [ 82.075679][ T4353] bg_scan_update+0x44/0x3b0 [ 82.080909][ T4353] process_one_work+0x85f/0x1010 [ 82.086501][ T4353] worker_thread+0xaa6/0x1290 [ 82.091735][ T4353] kthread+0x436/0x520 [ 82.096416][ T4353] ret_from_fork+0x1f/0x30 [ 82.101425][ T4353] [ 82.101425][ T4353] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.111763][ T4353] __lock_acquire+0x2c42/0x7d10 [ 82.117607][ T4353] lock_acquire+0x19e/0x400 [ 82.122668][ T4353] __flush_work+0x116/0x210 [ 82.127732][ T4353] __cancel_work_timer+0x3f4/0x560 [ 82.133581][ T4353] hci_request_cancel_all+0xcc/0x300 [ 82.139422][ T4353] hci_dev_do_close+0x4e/0x1030 [ 82.145276][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 82.151417][ T4353] rfkill_set_block+0x1c9/0x3d0 [ 82.157096][ T4353] rfkill_fop_write+0x452/0x560 [ 82.162799][ T4353] vfs_write+0x30b/0xd60 [ 82.167603][ T4353] ksys_write+0x152/0x260 [ 82.172585][ T4353] do_syscall_64+0x4c/0xa0 [ 82.177661][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.184123][ T4353] [ 82.184123][ T4353] other info that might help us debug this: [ 82.184123][ T4353] [ 82.194646][ T4353] Chain exists of: [ 82.194646][ T4353] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.194646][ T4353] [ 82.210667][ T4353] Possible unsafe locking scenario: [ 82.210667][ T4353] [ 82.218145][ T4353] CPU0 CPU1 [ 82.223602][ T4353] ---- ---- [ 82.229018][ T4353] lock(rfkill_global_mutex); [ 82.233896][ T4353] lock(&data->open_mutex); [ 82.241257][ T4353] lock(rfkill_global_mutex); [ 82.248568][ T4353] lock((work_completion)(&hdev->bg_scan_update)); [ 82.255189][ T4353] [ 82.255189][ T4353] *** DEADLOCK *** [ 82.255189][ T4353] [ 82.263716][ T4353] 1 lock held by syz.0.17/4353: [ 82.268699][ T4353] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.278943][ T4353] [ 82.278943][ T4353] stack backtrace: [ 82.285043][ T4353] CPU: 0 PID: 4353 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.292444][ T4353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.302780][ T4353] Call Trace: [ 82.306083][ T4353] [ 82.309143][ T4353] dump_stack_lvl+0x188/0x250 [ 82.313940][ T4353] ? load_image+0x400/0x400 [ 82.318567][ T4353] ? show_regs_print_info+0x20/0x20 [ 82.323802][ T4353] ? print_circular_bug+0x12b/0x1a0 [ 82.329037][ T4353] check_noncircular+0x296/0x330 [ 82.334294][ T4353] ? look_up_lock_class+0x71/0x110 [ 82.339436][ T4353] ? add_chain_block+0x940/0x940 [ 82.344398][ T4353] ? lockdep_lock+0xf1/0x1f0 [ 82.349077][ T4353] ? __lock_acquire+0x12e8/0x7d10 [ 82.354145][ T4353] ? mark_lock+0x94/0x320 [ 82.358502][ T4353] __lock_acquire+0x2c42/0x7d10 [ 82.363513][ T4353] ? verify_lock_unused+0x140/0x140 [ 82.368952][ T4353] ? verify_lock_unused+0x140/0x140 [ 82.374280][ T4353] ? mark_lock+0x94/0x320 [ 82.378659][ T4353] lock_acquire+0x19e/0x400 [ 82.383318][ T4353] ? __flush_work+0xfa/0x210 [ 82.388034][ T4353] ? __lock_acquire+0x7d10/0x7d10 [ 82.393268][ T4353] ? read_lock_is_recursive+0x10/0x10 [ 82.398683][ T4353] ? start_flush_work+0x776/0x820 [ 82.404102][ T4353] __flush_work+0x116/0x210 [ 82.408743][ T4353] ? __flush_work+0xfa/0x210 [ 82.413462][ T4353] ? flush_work+0x20/0x20 [ 82.417909][ T4353] ? try_to_grab_pending+0xfa/0x7f0 [ 82.423144][ T4353] ? mark_lock+0x94/0x320 [ 82.427653][ T4353] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 82.433669][ T4353] ? lock_chain_count+0x20/0x20 [ 82.438780][ T4353] ? mark_lock+0x94/0x320 [ 82.443147][ T4353] ? __cancel_work_timer+0x36a/0x560 [ 82.448565][ T4353] __cancel_work_timer+0x3f4/0x560 [ 82.453896][ T4353] ? cancel_work_sync+0x20/0x20 [ 82.458775][ T4353] ? __cancel_work+0x1f9/0x2e0 [ 82.463691][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 82.468920][ T4353] ? __cancel_work+0x27b/0x2e0 [ 82.473712][ T4353] ? cancel_work+0x20/0x20 [ 82.478163][ T4353] ? lock_chain_count+0x20/0x20 [ 82.483289][ T4353] hci_request_cancel_all+0xcc/0x300 [ 82.488826][ T4353] hci_dev_do_close+0x4e/0x1030 [ 82.493786][ T4353] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.499719][ T4353] ? _raw_spin_unlock+0x40/0x40 [ 82.504710][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 82.509941][ T4353] ? rcu_lock_release+0x20/0x20 [ 82.514997][ T4353] rfkill_set_block+0x1c9/0x3d0 [ 82.519968][ T4353] rfkill_fop_write+0x452/0x560 [ 82.524861][ T4353] ? rfkill_fop_read+0x520/0x520 [ 82.530120][ T4353] ? common_file_perm+0xc0/0x1c0 [ 82.535189][ T4353] ? fsnotify_perm+0x5d/0x560 [ 82.539902][ T4353] ? security_file_permission+0x75/0xa0 [ 82.545737][ T4353] ? rfkill_fop_read+0x520/0x520 [ 82.550805][ T4353] vfs_write+0x30b/0xd60 [ 82.555080][ T4353] ? file_end_write+0x250/0x250 [ 82.560068][ T4353] ? __context_tracking_exit+0x4c/0x80 [ 82.565662][ T4353] ? __lock_acquire+0x7d10/0x7d10 [ 82.570989][ T4353] ? __fdget_pos+0x1e2/0x370 [ 82.575608][ T4353] ksys_write+0x152/0x260 [ 82.580100][ T4353] ? __ia32_sys_read+0x80/0x80 [ 82.585356][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 82.590778][ T4353] do_syscall_64+0x4c/0xa0 [ 82.595229][ T4353] ? clear_bhb_loop+0x30/0x80 [ 82.600081][ T4353] ? clear_bhb_loop+0x30/0x80 [ 82.604996][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.611017][ T4353] RIP: 0033:0x7fdc4ebfae59 [ 82.615572][ T4353] 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 [ 82.636010][ T4353] RSP: 002b:00007ffd8eacb368 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.644631][ T4353] RAX: ffffffffffffffda RBX: 00007fdc4ee73fa0 RCX: 00007fdc4ebfae59 [ 82.652831][ T4353] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 82.661120][ T4353] RBP: 00007fdc4ec90d6f R08: 0000000000000000 R09: 0000000000000000 [ 82.669302][ T4353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.677307][ T4353] R13: 00007fdc4ee73fac R14: 00007fdc4ee73fa0 R15: 00007fdc4ee73fa0 [ 82.685567][ T4353]