Warning: Permanently added '10.128.0.106' (ED25519) to the list of known hosts. 2026/03/07 13:28:02 parsed 1 programs [ 54.703177][ T4188] cgroup: Unknown subsys name 'net' [ 54.845741][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 56.136290][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.695534][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.703616][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.715244][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.731916][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.739743][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.754442][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.687473][ T4274] chnl_net:caif_netlink_parms(): no params data found [ 59.724937][ T4274] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.732563][ T4274] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.740183][ T4274] device bridge_slave_0 entered promiscuous mode [ 59.749270][ T4274] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.756496][ T4274] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.764150][ T4274] device bridge_slave_1 entered promiscuous mode [ 59.782138][ T4274] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.793042][ T4274] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.812462][ T4274] team0: Port device team_slave_0 added [ 59.819994][ T4274] team0: Port device team_slave_1 added [ 59.834903][ T4274] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.841866][ T4274] 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. [ 59.868025][ T4274] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.880290][ T4274] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.887255][ T4274] 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. [ 59.913241][ T4274] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.939975][ T4274] device hsr_slave_0 entered promiscuous mode [ 59.946995][ T4274] device hsr_slave_1 entered promiscuous mode [ 60.028298][ T4274] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.039110][ T4274] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.048213][ T4274] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.057436][ T4274] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.125819][ T4274] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.155263][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 60.165162][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.172996][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.185419][ T4274] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.215190][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.223946][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.233596][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.240834][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.249022][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.263549][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.272796][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.281323][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.288377][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.324491][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.335299][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.345612][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.357300][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.387304][ T4274] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.399013][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.407938][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.515134][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.522691][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.534946][ T4274] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.567037][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.585291][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.593680][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.601604][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.627167][ T4274] device veth0_vlan entered promiscuous mode [ 60.638441][ T4274] device veth1_vlan entered promiscuous mode [ 60.672177][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.680225][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.689150][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.699426][ T4274] device veth0_macvtap entered promiscuous mode [ 60.709844][ T4274] device veth1_macvtap entered promiscuous mode [ 60.737355][ T4274] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.745263][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.755444][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.774595][ T4274] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.782929][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.792882][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.804683][ T4274] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.813597][ T4274] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.822854][ T4274] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.832496][ T4274] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/03/07 13:28:10 executed programs: 0 [ 61.567435][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 61.623644][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.631182][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.639239][ T4297] device bridge_slave_0 entered promiscuous mode [ 61.647989][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.655841][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.664321][ T4297] device bridge_slave_1 entered promiscuous mode [ 61.688456][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.700101][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.726652][ T4297] team0: Port device team_slave_0 added [ 61.734686][ T4297] team0: Port device team_slave_1 added [ 61.756531][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.764337][ 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. [ 61.793229][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.806284][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.816098][ 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. [ 61.848113][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.891121][ T4297] device hsr_slave_0 entered promiscuous mode [ 61.898070][ T4297] device hsr_slave_1 entered promiscuous mode [ 61.908321][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.916596][ T4297] Cannot create hsr debugfs directory [ 62.009012][ T4297] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.069599][ T1439] ODEBUG: Out of memory. ODEBUG disabled [ 63.501318][ T4268] Bluetooth: hci0: command 0x0409 tx timeout [ 64.595325][ T4297] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.580965][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 65.667508][ T4297] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.726509][ T4297] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.834786][ T4297] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.844449][ T4297] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.856866][ T4297] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.865392][ T4297] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.912839][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.933859][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.941689][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.951921][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.963527][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.972281][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.980616][ T4286] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.987669][ T4286] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.996304][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.005336][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.013770][ T4286] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.020812][ T4286] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.028464][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.057311][ T4297] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.068556][ T4297] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.083790][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.092545][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.101762][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.110262][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.119133][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.128076][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.136651][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.145920][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.154339][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.162790][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.171070][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.178909][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.263818][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.271393][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.283721][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.295276][ T1439] device hsr_slave_0 left promiscuous mode [ 66.302983][ T1439] device hsr_slave_1 left promiscuous mode [ 66.309318][ T1439] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.316885][ T1439] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.325290][ T1439] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.332744][ T1439] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.340252][ T1439] device bridge_slave_1 left promiscuous mode [ 66.347221][ T1439] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.358926][ T1439] device bridge_slave_0 left promiscuous mode [ 66.365989][ T1439] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.381769][ T1439] device veth1_macvtap left promiscuous mode [ 66.387965][ T1439] device veth0_macvtap left promiscuous mode [ 66.394144][ T1439] device veth1_vlan left promiscuous mode [ 66.399974][ T1439] device veth0_vlan left promiscuous mode [ 66.509596][ T1439] team0 (unregistering): Port device team_slave_1 removed [ 66.523352][ T1439] team0 (unregistering): Port device team_slave_0 removed [ 66.535210][ T1439] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.548326][ T1439] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.591557][ T1439] bond0 (unregistering): Released all slaves [ 66.644338][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.653017][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.669571][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.678371][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.686962][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.695071][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.705935][ T4297] device veth0_vlan entered promiscuous mode [ 66.721389][ T4297] device veth1_vlan entered promiscuous mode [ 66.744815][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.752855][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.760888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.769268][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.779420][ T4297] device veth0_macvtap entered promiscuous mode [ 66.788992][ T4297] device veth1_macvtap entered promiscuous mode [ 66.808329][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.815881][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.827535][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.836101][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.844925][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.855621][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.864687][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.873265][ T891] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.884830][ T4297] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.893970][ T4297] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.903059][ T4297] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.911832][ T4297] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.963340][ T891] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.976087][ T891] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.986384][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.000235][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.008163][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.019609][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.121479][ T4310] [ 67.123830][ T4310] ====================================================== [ 67.130841][ T4310] WARNING: possible circular locking dependency detected [ 67.137857][ T4310] syzkaller #0 Not tainted [ 67.142265][ T4310] ------------------------------------------------------ [ 67.149272][ T4310] syz.0.17/4310 is trying to acquire lock: [ 67.155064][ T4310] ffff888025114c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 67.166119][ T4310] [ 67.166119][ T4310] but task is already holding lock: [ 67.173469][ T4310] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 67.183128][ T4310] [ 67.183128][ T4310] which lock already depends on the new lock. [ 67.183128][ T4310] [ 67.193519][ T4310] [ 67.193519][ T4310] the existing dependency chain (in reverse order) is: [ 67.202527][ T4310] [ 67.202527][ T4310] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.210519][ T4310] __mutex_lock_common+0x1e3/0x2400 [ 67.216239][ T4310] mutex_lock_nested+0x17/0x20 [ 67.221519][ T4310] rfkill_register+0x33/0x8a0 [ 67.226716][ T4310] hci_register_dev+0x452/0x970 [ 67.232094][ T4310] vhci_create_device+0x32c/0x5c0 [ 67.237640][ T4310] vhci_write+0x391/0x450 [ 67.242489][ T4310] vfs_write+0x745/0xd60 [ 67.247255][ T4310] ksys_write+0x152/0x260 [ 67.252091][ T4310] do_syscall_64+0x4c/0xa0 [ 67.257021][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.263433][ T4310] [ 67.263433][ T4310] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.271243][ T4310] __mutex_lock_common+0x1e3/0x2400 [ 67.276959][ T4310] mutex_lock_nested+0x17/0x20 [ 67.282249][ T4310] vhci_send_frame+0x88/0x100 [ 67.287447][ T4310] hci_send_frame+0x1a9/0x2e0 [ 67.292641][ T4310] hci_tx_work+0x9f9/0x1710 [ 67.297659][ T4310] process_one_work+0x85f/0x1010 [ 67.303114][ T4310] worker_thread+0xaa6/0x1290 [ 67.308304][ T4310] kthread+0x436/0x520 [ 67.312884][ T4310] ret_from_fork+0x1f/0x30 [ 67.317949][ T4310] [ 67.317949][ T4310] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.327159][ T4310] __flush_work+0x116/0x210 [ 67.332189][ T4310] hci_dev_do_close+0x1e7/0x1030 [ 67.337650][ T4310] hci_unregister_dev+0x2d7/0x580 [ 67.343189][ T4310] vhci_release+0x73/0xc0 [ 67.348031][ T4310] __fput+0x234/0x930 [ 67.352518][ T4310] task_work_run+0x125/0x1a0 [ 67.357610][ T4310] do_exit+0x626/0x20c0 [ 67.362270][ T4310] do_group_exit+0x12e/0x300 [ 67.367357][ T4310] get_signal+0x6ca/0x12c0 [ 67.372271][ T4310] arch_do_signal_or_restart+0xe7/0x12c0 [ 67.378498][ T4310] exit_to_user_mode_loop+0x9e/0x130 [ 67.384281][ T4310] exit_to_user_mode_prepare+0xee/0x180 [ 67.390328][ T4310] syscall_exit_to_user_mode+0x16/0x40 [ 67.396288][ T4310] do_syscall_64+0x58/0xa0 [ 67.401303][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.407699][ T4310] [ 67.407699][ T4310] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.415317][ T4310] __mutex_lock_common+0x1e3/0x2400 [ 67.421013][ T4310] mutex_lock_nested+0x17/0x20 [ 67.426277][ T4310] bg_scan_update+0x44/0x3b0 [ 67.431369][ T4310] process_one_work+0x85f/0x1010 [ 67.436805][ T4310] worker_thread+0xaa6/0x1290 [ 67.441994][ T4310] kthread+0x436/0x520 [ 67.446572][ T4310] ret_from_fork+0x1f/0x30 [ 67.451498][ T4310] [ 67.451498][ T4310] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.461292][ T4310] __lock_acquire+0x2c42/0x7d10 [ 67.466653][ T4310] lock_acquire+0x19e/0x400 [ 67.471661][ T4310] __flush_work+0x116/0x210 [ 67.476663][ T4310] __cancel_work_timer+0x3f4/0x560 [ 67.482279][ T4310] hci_request_cancel_all+0xcc/0x300 [ 67.488073][ T4310] hci_dev_do_close+0x4e/0x1030 [ 67.493424][ T4310] hci_rfkill_set_block+0x10a/0x190 [ 67.499128][ T4310] rfkill_set_block+0x1c6/0x420 [ 67.504483][ T4310] rfkill_fop_write+0x452/0x560 [ 67.509837][ T4310] vfs_write+0x30b/0xd60 [ 67.514580][ T4310] ksys_write+0x152/0x260 [ 67.519404][ T4310] do_syscall_64+0x4c/0xa0 [ 67.524319][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.530710][ T4310] [ 67.530710][ T4310] other info that might help us debug this: [ 67.530710][ T4310] [ 67.540913][ T4310] Chain exists of: [ 67.540913][ T4310] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 67.540913][ T4310] [ 67.556612][ T4310] Possible unsafe locking scenario: [ 67.556612][ T4310] [ 67.564034][ T4310] CPU0 CPU1 [ 67.569385][ T4310] ---- ---- [ 67.574721][ T4310] lock(rfkill_global_mutex); [ 67.579460][ T4310] lock(&data->open_mutex); [ 67.586554][ T4310] lock(rfkill_global_mutex); [ 67.593823][ T4310] lock((work_completion)(&hdev->bg_scan_update)); [ 67.600384][ T4310] [ 67.600384][ T4310] *** DEADLOCK *** [ 67.600384][ T4310] [ 67.608500][ T4310] 1 lock held by syz.0.17/4310: [ 67.613321][ T4310] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 67.623388][ T4310] [ 67.623388][ T4310] stack backtrace: [ 67.629266][ T4310] CPU: 0 PID: 4310 Comm: syz.0.17 Not tainted syzkaller #0 [ 67.636440][ T4310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 67.646478][ T4310] Call Trace: [ 67.649740][ T4310] [ 67.652650][ T4310] dump_stack_lvl+0x188/0x250 [ 67.657309][ T4310] ? load_image+0x400/0x400 [ 67.661791][ T4310] ? show_regs_print_info+0x20/0x20 [ 67.666972][ T4310] ? print_circular_bug+0x12b/0x1a0 [ 67.672154][ T4310] check_noncircular+0x296/0x330 [ 67.677242][ T4310] ? look_up_lock_class+0x71/0x110 [ 67.682335][ T4310] ? add_chain_block+0x940/0x940 [ 67.687247][ T4310] ? lockdep_lock+0xf1/0x1f0 [ 67.691817][ T4310] ? __lock_acquire+0x12e8/0x7d10 [ 67.696822][ T4310] ? mark_lock+0x94/0x320 [ 67.701129][ T4310] __lock_acquire+0x2c42/0x7d10 [ 67.705968][ T4310] ? rcu_lock_release+0x5/0x20 [ 67.710709][ T4310] ? verify_lock_unused+0x140/0x140 [ 67.715888][ T4310] ? mark_lock+0x94/0x320 [ 67.720200][ T4310] lock_acquire+0x19e/0x400 [ 67.724682][ T4310] ? __flush_work+0xfa/0x210 [ 67.729252][ T4310] ? __lock_acquire+0x7d10/0x7d10 [ 67.734267][ T4310] ? read_lock_is_recursive+0x10/0x10 [ 67.739616][ T4310] ? start_flush_work+0x776/0x820 [ 67.744622][ T4310] __flush_work+0x116/0x210 [ 67.749110][ T4310] ? __flush_work+0xfa/0x210 [ 67.753677][ T4310] ? flush_work+0x20/0x20 [ 67.758001][ T4310] ? try_to_grab_pending+0xfa/0x7f0 [ 67.763183][ T4310] ? mark_lock+0x94/0x320 [ 67.767488][ T4310] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 67.773445][ T4310] ? lock_chain_count+0x20/0x20 [ 67.778275][ T4310] ? mark_lock+0x94/0x320 [ 67.782590][ T4310] ? __cancel_work_timer+0x36a/0x560 [ 67.787852][ T4310] __cancel_work_timer+0x3f4/0x560 [ 67.792951][ T4310] ? cancel_work_sync+0x20/0x20 [ 67.797777][ T4310] ? __cancel_work+0x1f9/0x2e0 [ 67.802515][ T4310] ? lockdep_hardirqs_on+0x94/0x140 [ 67.807694][ T4310] ? __cancel_work+0x27b/0x2e0 [ 67.812433][ T4310] ? cancel_work+0x20/0x20 [ 67.816829][ T4310] ? lock_chain_count+0x20/0x20 [ 67.821662][ T4310] hci_request_cancel_all+0xcc/0x300 [ 67.826927][ T4310] hci_dev_do_close+0x4e/0x1030 [ 67.831762][ T4310] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 67.837631][ T4310] ? _raw_spin_unlock+0x40/0x40 [ 67.842459][ T4310] hci_rfkill_set_block+0x10a/0x190 [ 67.847637][ T4310] ? rcu_lock_release+0x20/0x20 [ 67.852466][ T4310] rfkill_set_block+0x1c6/0x420 [ 67.857299][ T4310] rfkill_fop_write+0x452/0x560 [ 67.862129][ T4310] ? rfkill_fop_read+0x4d0/0x4d0 [ 67.867046][ T4310] ? common_file_perm+0x110/0x1c0 [ 67.872051][ T4310] ? fsnotify_perm+0x5d/0x560 [ 67.876704][ T4310] ? security_file_permission+0x75/0xa0 [ 67.882238][ T4310] ? rfkill_fop_read+0x4d0/0x4d0 [ 67.887154][ T4310] vfs_write+0x30b/0xd60 [ 67.891376][ T4310] ? file_end_write+0x250/0x250 [ 67.896209][ T4310] ? __context_tracking_exit+0x4c/0x80 [ 67.901655][ T4310] ? __lock_acquire+0x7d10/0x7d10 [ 67.906661][ T4310] ? __fdget_pos+0x1e2/0x370 [ 67.911227][ T4310] ksys_write+0x152/0x260 [ 67.915536][ T4310] ? __ia32_sys_read+0x80/0x80 [ 67.920278][ T4310] ? lockdep_hardirqs_on+0x94/0x140 [ 67.925456][ T4310] do_syscall_64+0x4c/0xa0 [ 67.929848][ T4310] ? clear_bhb_loop+0x30/0x80 [ 67.934503][ T4310] ? clear_bhb_loop+0x30/0x80 [ 67.939257][ T4310] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.945137][ T4310] RIP: 0033:0x7f2673c55799 [ 67.949553][ T4310] 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 [ 67.969133][ T4310] RSP: 002b:00007fffafd42fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 67.977526][ T4310] RAX: ffffffffffffffda RBX: 00007f2673ecefa0 RCX: 00007f2673c55799 [ 67.985478][ T4310] RDX: 0000000000000008 RSI: 0000200000000280 RDI: 0000000000000003 [ 67.993425][ T4310] RBP: 00007f2673cebbd9 R08: 0000000000000000 R09: 0000000000000000 [ 68.001380][ T4310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.009333][ T4310] R13: 00007f2673ecefac R14: 00007f2673ecefa0 R15: 00007f2673ecefa0 [ 68.017288][ T4310] [ 68.021995][ T4280] Bluetooth: hci0: command 0x040f tx timeout