Warning: Permanently added '10.128.0.230' (ED25519) to the list of known hosts. 2026/01/08 01:38:54 parsed 1 programs [ 68.845275][ T4189] cgroup: Unknown subsys name 'net' [ 68.983435][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.662978][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.562598][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.569184][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.514987][ T4211] chnl_net:caif_netlink_parms(): no params data found [ 72.575104][ T4211] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.583836][ T4211] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.592599][ T4211] device bridge_slave_0 entered promiscuous mode [ 72.602664][ T4211] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.609978][ T4211] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.618372][ T4211] device bridge_slave_1 entered promiscuous mode [ 72.646471][ T4211] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.657969][ T4211] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.686894][ T4211] team0: Port device team_slave_0 added [ 72.695201][ T4211] team0: Port device team_slave_1 added [ 72.715016][ T4211] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.722236][ T4211] 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. [ 72.748904][ T4211] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.763799][ T4211] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.770988][ T4211] 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. [ 72.797823][ T4211] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.835964][ T4211] device hsr_slave_0 entered promiscuous mode [ 72.843064][ T4211] device hsr_slave_1 entered promiscuous mode [ 72.969549][ T4211] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.983345][ T4211] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.994519][ T4211] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.005388][ T4211] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.043390][ T4211] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.051033][ T4211] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.059267][ T4211] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.066467][ T4211] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.143429][ T4211] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.167598][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.183956][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.194201][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.210620][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.225960][ T4211] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.238807][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.248104][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.255566][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.282134][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.292205][ T1219] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.299339][ T1219] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.324057][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.334229][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.343119][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.361176][ T4211] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.374515][ T4211] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.385377][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.394820][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.534329][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.542507][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.552887][ T4211] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.589104][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.598926][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.622018][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.631837][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.643909][ T4211] device veth0_vlan entered promiscuous mode [ 73.652293][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.661272][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.674951][ T4211] device veth1_vlan entered promiscuous mode [ 73.702932][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.713330][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.722296][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.731203][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.743247][ T4211] device veth0_macvtap entered promiscuous mode [ 73.755171][ T4211] device veth1_macvtap entered promiscuous mode [ 73.773380][ T4211] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.785259][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.793814][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.803436][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.812634][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.824085][ T4211] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.832572][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.844010][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.856982][ T4211] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.866870][ T4211] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.876310][ T4211] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.885886][ T4211] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.007645][ T4211] syz-executor (4211) used greatest stack depth: 21120 bytes left [ 74.736546][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.957224][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.086507][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.178965][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.631793][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.639899][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.693390][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.726115][ T1219] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.736878][ T1219] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.783020][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.410465][ T9] device hsr_slave_0 left promiscuous mode [ 80.431330][ T9] device hsr_slave_1 left promiscuous mode [ 80.442091][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.449864][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.472693][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.480205][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.488108][ T9] device bridge_slave_1 left promiscuous mode [ 80.502987][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.539655][ T9] device bridge_slave_0 left promiscuous mode [ 80.554175][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.588113][ T9] device veth1_macvtap left promiscuous mode [ 80.596453][ T9] device veth0_macvtap left promiscuous mode [ 80.603056][ T9] device veth1_vlan left promiscuous mode [ 80.609109][ T9] device veth0_vlan left promiscuous mode [ 80.898900][ T9] team0 (unregistering): Port device team_slave_1 removed [ 80.913043][ T9] team0 (unregistering): Port device team_slave_0 removed [ 80.925746][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.940322][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.997487][ T9] bond0 (unregistering): Released all slaves 2026/01/08 01:39:10 executed programs: 0 [ 83.097584][ T4373] chnl_net:caif_netlink_parms(): no params data found [ 83.222359][ T4373] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.241659][ T4373] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.251714][ T4373] device bridge_slave_0 entered promiscuous mode [ 83.271252][ T4373] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.278483][ T4373] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.286758][ T4373] device bridge_slave_1 entered promiscuous mode [ 83.314634][ T4373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.326546][ T4373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 83.367909][ T4373] team0: Port device team_slave_0 added [ 83.377542][ T4373] team0: Port device team_slave_1 added [ 83.403460][ T4373] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 83.411445][ T4373] 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. [ 83.437921][ T4373] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.461978][ T4373] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.469229][ T4373] 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. [ 83.496122][ T4373] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.718859][ T4373] device hsr_slave_0 entered promiscuous mode [ 83.749761][ T4373] device hsr_slave_1 entered promiscuous mode [ 84.526171][ T4373] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 84.536911][ T4373] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 84.547369][ T4373] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 84.559489][ T4373] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.725506][ T4373] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.745407][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.754611][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.765909][ T4373] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.804170][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.813667][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.824498][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.831665][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.842970][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.853092][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.863384][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.870553][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.895924][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.904737][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.915303][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.924438][ T4264] Bluetooth: hci0: command 0x0409 tx timeout [ 84.937160][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.948352][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.958783][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.976891][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.987871][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.997677][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 85.010724][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.024080][ T4373] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 85.037888][ T4373] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.046690][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 85.055578][ T637] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 85.218479][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 85.228736][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 85.243557][ T4373] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.274293][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 85.291077][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 85.328415][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 85.339900][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 85.350145][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 85.358178][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 85.368733][ T4373] device veth0_vlan entered promiscuous mode [ 85.388002][ T4373] device veth1_vlan entered promiscuous mode [ 85.457307][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 85.468621][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.478912][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 85.487878][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.501317][ T4373] device veth0_macvtap entered promiscuous mode [ 85.532885][ T4373] device veth1_macvtap entered promiscuous mode [ 85.563526][ T4373] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.601632][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.611673][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 85.633272][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.650903][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.674630][ T4373] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.690729][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.720725][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.732557][ T4373] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.742835][ T4373] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.753476][ T4373] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.762836][ T4373] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.865688][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.891285][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.905851][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.922333][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.941580][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.952242][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 86.113708][ T4489] [ 86.116101][ T4489] ====================================================== [ 86.123172][ T4489] WARNING: possible circular locking dependency detected [ 86.130235][ T4489] syzkaller #0 Not tainted [ 86.134866][ T4489] ------------------------------------------------------ [ 86.141908][ T4489] syz.0.17/4489 is trying to acquire lock: [ 86.147829][ T4489] ffff88807e13cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 86.159243][ T4489] [ 86.159243][ T4489] but task is already holding lock: [ 86.166650][ T4489] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.176650][ T4489] [ 86.176650][ T4489] which lock already depends on the new lock. [ 86.176650][ T4489] [ 86.187174][ T4489] [ 86.187174][ T4489] the existing dependency chain (in reverse order) is: [ 86.196806][ T4489] [ 86.196806][ T4489] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 86.204847][ T4489] __mutex_lock_common+0x1eb/0x2390 [ 86.210610][ T4489] mutex_lock_nested+0x17/0x20 [ 86.215942][ T4489] rfkill_register+0x33/0x8a0 [ 86.221178][ T4489] hci_register_dev+0x452/0x970 [ 86.226682][ T4489] vhci_create_device+0x32c/0x5c0 [ 86.232439][ T4489] vhci_write+0x391/0x450 [ 86.237550][ T4489] vfs_write+0x712/0xd00 [ 86.242363][ T4489] ksys_write+0x14d/0x250 [ 86.247262][ T4489] do_syscall_64+0x4c/0xa0 [ 86.252286][ T4489] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.258744][ T4489] [ 86.258744][ T4489] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 86.266643][ T4489] __mutex_lock_common+0x1eb/0x2390 [ 86.272492][ T4489] mutex_lock_nested+0x17/0x20 [ 86.277822][ T4489] vhci_send_frame+0x88/0x100 [ 86.283178][ T4489] hci_send_frame+0x1a9/0x2e0 [ 86.288514][ T4489] hci_tx_work+0x9f9/0x1710 [ 86.293582][ T4489] process_one_work+0x863/0x1000 [ 86.299077][ T4489] worker_thread+0xaa8/0x12a0 [ 86.304311][ T4489] kthread+0x436/0x520 [ 86.308936][ T4489] ret_from_fork+0x1f/0x30 [ 86.313918][ T4489] [ 86.313918][ T4489] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 86.323177][ T4489] __flush_work+0xdd/0x1b0 [ 86.328174][ T4489] hci_dev_do_close+0x1e7/0x1030 [ 86.333666][ T4489] hci_unregister_dev+0x2d7/0x580 [ 86.339247][ T4489] vhci_release+0x73/0xc0 [ 86.344127][ T4489] __fput+0x234/0x930 [ 86.348666][ T4489] task_work_run+0x125/0x1a0 [ 86.353821][ T4489] do_exit+0x61e/0x20a0 [ 86.358539][ T4489] do_group_exit+0x12e/0x300 [ 86.363770][ T4489] get_signal+0x6ca/0x12c0 [ 86.368747][ T4489] arch_do_signal_or_restart+0xc1/0x1300 [ 86.375031][ T4489] exit_to_user_mode_loop+0x9e/0x130 [ 86.380877][ T4489] exit_to_user_mode_prepare+0xee/0x180 [ 86.387092][ T4489] syscall_exit_to_user_mode+0x16/0x40 [ 86.393118][ T4489] do_syscall_64+0x58/0xa0 [ 86.398147][ T4489] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.404862][ T4489] [ 86.404862][ T4489] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 86.412554][ T4489] __mutex_lock_common+0x1eb/0x2390 [ 86.418313][ T4489] mutex_lock_nested+0x17/0x20 [ 86.423641][ T4489] bg_scan_update+0x44/0x3b0 [ 86.428800][ T4489] process_one_work+0x863/0x1000 [ 86.434295][ T4489] worker_thread+0xaa8/0x12a0 [ 86.439532][ T4489] kthread+0x436/0x520 [ 86.444180][ T4489] ret_from_fork+0x1f/0x30 [ 86.449154][ T4489] [ 86.449154][ T4489] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.459004][ T4489] __lock_acquire+0x2c33/0x7c60 [ 86.464831][ T4489] lock_acquire+0x197/0x3f0 [ 86.469927][ T4489] __flush_work+0xdd/0x1b0 [ 86.474909][ T4489] __cancel_work_timer+0x3ac/0x520 [ 86.480577][ T4489] hci_request_cancel_all+0xcc/0x300 [ 86.486422][ T4489] hci_dev_do_close+0x4e/0x1030 [ 86.492261][ T4489] hci_rfkill_set_block+0x10a/0x190 [ 86.498027][ T4489] rfkill_set_block+0x1c6/0x420 [ 86.503431][ T4489] rfkill_fop_write+0x458/0x560 [ 86.508885][ T4489] vfs_write+0x300/0xd00 [ 86.513807][ T4489] ksys_write+0x14d/0x250 [ 86.518687][ T4489] do_syscall_64+0x4c/0xa0 [ 86.523670][ T4489] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.530124][ T4489] [ 86.530124][ T4489] other info that might help us debug this: [ 86.530124][ T4489] [ 86.540465][ T4489] Chain exists of: [ 86.540465][ T4489] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.540465][ T4489] [ 86.556239][ T4489] Possible unsafe locking scenario: [ 86.556239][ T4489] [ 86.563802][ T4489] CPU0 CPU1 [ 86.569197][ T4489] ---- ---- [ 86.574586][ T4489] lock(rfkill_global_mutex); [ 86.579412][ T4489] lock(&data->open_mutex); [ 86.586657][ T4489] lock(rfkill_global_mutex); [ 86.593980][ T4489] lock((work_completion)(&hdev->bg_scan_update)); [ 86.600629][ T4489] [ 86.600629][ T4489] *** DEADLOCK *** [ 86.600629][ T4489] [ 86.608802][ T4489] 1 lock held by syz.0.17/4489: [ 86.613766][ T4489] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.623911][ T4489] [ 86.623911][ T4489] stack backtrace: [ 86.629850][ T4489] CPU: 1 PID: 4489 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.637104][ T4489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 86.647388][ T4489] Call Trace: [ 86.650691][ T4489] [ 86.653685][ T4489] dump_stack_lvl+0x168/0x230 [ 86.658400][ T4489] ? load_image+0x3b0/0x3b0 [ 86.662935][ T4489] ? show_regs_print_info+0x20/0x20 [ 86.668177][ T4489] ? print_circular_bug+0x12b/0x1a0 [ 86.673403][ T4489] check_noncircular+0x274/0x310 [ 86.678370][ T4489] ? add_chain_block+0x940/0x940 [ 86.683342][ T4489] ? lockdep_lock+0xdc/0x1e0 [ 86.687969][ T4489] ? __lock_acquire+0x12d9/0x7c60 [ 86.693043][ T4489] ? lockdep_lock+0x1e0/0x1e0 [ 86.697768][ T4489] ? mark_lock+0x94/0x320 [ 86.702187][ T4489] __lock_acquire+0x2c33/0x7c60 [ 86.707078][ T4489] ? verify_lock_unused+0x140/0x140 [ 86.712324][ T4489] ? verify_lock_unused+0x140/0x140 [ 86.717577][ T4489] lock_acquire+0x197/0x3f0 [ 86.722126][ T4489] ? __flush_work+0xc1/0x1b0 [ 86.726757][ T4489] ? __lock_acquire+0x7c60/0x7c60 [ 86.731831][ T4489] ? read_lock_is_recursive+0x10/0x10 [ 86.737392][ T4489] ? start_flush_work+0x776/0x820 [ 86.742453][ T4489] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.748385][ T4489] ? _raw_spin_unlock+0x40/0x40 [ 86.753265][ T4489] __flush_work+0xdd/0x1b0 [ 86.757720][ T4489] ? __flush_work+0xc1/0x1b0 [ 86.762339][ T4489] ? flush_work+0x20/0x20 [ 86.766696][ T4489] ? try_to_grab_pending+0xf3/0x7e0 [ 86.771967][ T4489] ? lockdep_hardirqs_off+0x70/0x100 [ 86.777304][ T4489] ? mark_lock+0x94/0x320 [ 86.781718][ T4489] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 86.787738][ T4489] ? lock_chain_count+0x20/0x20 [ 86.792616][ T4489] ? mark_lock+0x94/0x320 [ 86.797347][ T4489] ? __cancel_work_timer+0x331/0x520 [ 86.802662][ T4489] __cancel_work_timer+0x3ac/0x520 [ 86.807804][ T4489] ? cancel_work_sync+0x20/0x20 [ 86.812680][ T4489] ? __cancel_work+0x1f4/0x2d0 [ 86.817471][ T4489] ? lockdep_hardirqs_on+0x94/0x140 [ 86.822786][ T4489] ? __cancel_work+0x26f/0x2d0 [ 86.827584][ T4489] ? cancel_work+0x20/0x20 [ 86.832027][ T4489] ? lock_chain_count+0x20/0x20 [ 86.836911][ T4489] hci_request_cancel_all+0xcc/0x300 [ 86.842241][ T4489] hci_dev_do_close+0x4e/0x1030 [ 86.847127][ T4489] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.853100][ T4489] ? _raw_spin_unlock+0x40/0x40 [ 86.857991][ T4489] hci_rfkill_set_block+0x10a/0x190 [ 86.863222][ T4489] ? rcu_lock_release+0x20/0x20 [ 86.868110][ T4489] rfkill_set_block+0x1c6/0x420 [ 86.873004][ T4489] rfkill_fop_write+0x458/0x560 [ 86.877913][ T4489] ? verify_lock_unused+0x140/0x140 [ 86.883159][ T4489] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.888128][ T4489] ? common_file_perm+0xc0/0x1c0 [ 86.893105][ T4489] ? fsnotify_perm+0x5d/0x560 [ 86.897820][ T4489] ? security_file_permission+0x75/0xa0 [ 86.903397][ T4489] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.908366][ T4489] vfs_write+0x300/0xd00 [ 86.912637][ T4489] ? file_end_write+0x250/0x250 [ 86.917527][ T4489] ? __context_tracking_exit+0x4c/0x80 [ 86.923017][ T4489] ? __lock_acquire+0x7c60/0x7c60 [ 86.928185][ T4489] ? __fdget_pos+0x1e2/0x370 [ 86.931012][ T13] cfg80211: failed to load regulatory.db [ 86.932816][ T4489] ksys_write+0x14d/0x250 [ 86.942913][ T4489] ? __ia32_sys_read+0x80/0x80 [ 86.947814][ T4489] ? lockdep_hardirqs_on+0x94/0x140 [ 86.953065][ T4489] do_syscall_64+0x4c/0xa0 [ 86.957617][ T4489] ? clear_bhb_loop+0x30/0x80 [ 86.962327][ T4489] ? clear_bhb_loop+0x30/0x80 [ 86.967042][ T4489] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.972980][ T4489] RIP: 0033:0x7f7bbaf8c749 [ 86.977429][ T4489] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 86.997478][ T4489] RSP: 002b:00007ffd5cb13168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.005927][ T4489] RAX: ffffffffffffffda RBX: 00007f7bbb1e2fa0 RCX: 00007f7bbaf8c749 [ 87.013937][ T4489] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 87.021958][ T4489] RBP: 00007f7bbb010f91 R08: 0000000000000000 R09: 0000000000000000 [ 87.030070][ T4489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.038160][ T4489] R13: 00007f7bbb1e2fa0 R14: 00007f7bbb1e2fa0 R15: 0000000000000003 [ 87.039151][ T4260] Bluetooth: hci0: command 0x041b tx timeout [ 87.046166][ T4489]