Warning: Permanently added '10.128.10.8' (ED25519) to the list of known hosts. 2026/05/30 18:16:28 parsed 1 programs [ 70.295371][ T4202] cgroup: Unknown subsys name 'net' [ 70.424870][ T4202] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.301781][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.308411][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.921426][ T4202] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.088606][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.096650][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.114154][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.141834][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.157952][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.165554][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.268407][ T4255] chnl_net:caif_netlink_parms(): no params data found [ 75.328952][ T4255] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.337081][ T4255] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.349313][ T4255] device bridge_slave_0 entered promiscuous mode [ 75.364286][ T4255] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.371555][ T4255] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.380128][ T4255] device bridge_slave_1 entered promiscuous mode [ 75.416327][ T4255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.428123][ T4255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.472746][ T4255] team0: Port device team_slave_0 added [ 75.490982][ T4255] team0: Port device team_slave_1 added [ 75.516400][ T4255] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.523627][ T4255] 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. [ 75.550955][ T4255] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.566040][ T4255] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.573241][ T4255] 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. [ 75.599307][ T4255] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.643439][ T4255] device hsr_slave_0 entered promiscuous mode [ 75.650490][ T4255] device hsr_slave_1 entered promiscuous mode [ 75.749238][ T4255] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.761536][ T4255] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.771484][ T4255] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.780958][ T4255] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.805578][ T4255] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.812858][ T4255] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.821124][ T4255] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.828259][ T4255] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.879804][ T4255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.893437][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.902613][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.912111][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.920994][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.951958][ T4255] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.965220][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.974491][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.981804][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.001616][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.010811][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.017962][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.033605][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.062642][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.079356][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.089462][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.100999][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.127503][ T4255] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.246899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.255300][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.269878][ T4255] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.305812][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.314799][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.356480][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.365541][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.374688][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.382760][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.393440][ T4255] device veth0_vlan entered promiscuous mode [ 76.421021][ T4255] device veth1_vlan entered promiscuous mode [ 76.442511][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.452087][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.460765][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.469727][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.480986][ T4255] device veth0_macvtap entered promiscuous mode [ 76.505484][ T4255] device veth1_macvtap entered promiscuous mode [ 76.523108][ T4255] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.533396][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.543219][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.551811][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.561371][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.572554][ T4255] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.582302][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.591114][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.603210][ T4255] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.612798][ T4255] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.621902][ T4255] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.630975][ T4255] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/05/30 18:16:38 executed programs: 0 [ 78.122379][ T4305] chnl_net:caif_netlink_parms(): no params data found [ 78.187511][ T4305] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.196280][ T4305] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.204846][ T4305] device bridge_slave_0 entered promiscuous mode [ 78.214172][ T4305] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.221899][ T4305] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.230661][ T4305] device bridge_slave_1 entered promiscuous mode [ 78.257751][ T4305] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.270762][ T4305] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.296696][ T4305] team0: Port device team_slave_0 added [ 78.304880][ T4305] team0: Port device team_slave_1 added [ 78.330078][ T4305] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.337081][ T4305] 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. [ 78.363351][ T4305] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.376435][ T4305] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.383471][ T4305] 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. [ 78.409522][ T4305] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.455251][ T4305] device hsr_slave_0 entered promiscuous mode [ 78.462682][ T4305] device hsr_slave_1 entered promiscuous mode [ 78.469493][ T4305] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 78.477431][ T4305] Cannot create hsr debugfs directory [ 78.558182][ T4305] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.018730][ T1108] Bluetooth: hci0: command 0x0409 tx timeout [ 81.615341][ T4305] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.663395][ T4305] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.705647][ T4305] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.912722][ T4305] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.923461][ T4305] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.932865][ T4305] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.943698][ T4305] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.025111][ T4305] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.037274][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.045497][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.056658][ T4305] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.071680][ T154] device hsr_slave_0 left promiscuous mode [ 82.078635][ T154] device hsr_slave_1 left promiscuous mode [ 82.085342][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.093716][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.100975][ T1326] Bluetooth: hci0: command 0x041b tx timeout [ 82.109194][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.116614][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.124575][ T154] device bridge_slave_1 left promiscuous mode [ 82.131876][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.145412][ T154] device bridge_slave_0 left promiscuous mode [ 82.153334][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.172374][ T154] device veth1_macvtap left promiscuous mode [ 82.179298][ T154] device veth0_macvtap left promiscuous mode [ 82.185384][ T154] device veth1_vlan left promiscuous mode [ 82.192055][ T154] device veth0_vlan left promiscuous mode [ 82.360592][ T154] team0 (unregistering): Port device team_slave_1 removed [ 82.373742][ T154] team0 (unregistering): Port device team_slave_0 removed [ 82.388543][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.405706][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.466732][ T154] bond0 (unregistering): Released all slaves [ 82.543336][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.552949][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.561557][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.568669][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.581767][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.598221][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.606902][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.615638][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.623080][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.633866][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.643482][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.671739][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.682039][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.691049][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 82.701580][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.710543][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.719404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.727738][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.738949][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.747358][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.765518][ T4305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.875939][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.883639][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.900755][ T4305] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.918770][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.927487][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.959072][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.968111][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.977626][ T4305] device veth0_vlan entered promiscuous mode [ 82.986635][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.995771][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.010020][ T4305] device veth1_vlan entered promiscuous mode [ 83.036654][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.046794][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.055771][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.065042][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.077007][ T4305] device veth0_macvtap entered promiscuous mode [ 83.088541][ T4305] device veth1_macvtap entered promiscuous mode [ 83.109968][ T4305] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.117363][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.129206][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.140749][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.153257][ T4305] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.163363][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.173161][ T3107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.184656][ T4305] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.194806][ T4305] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.205253][ T4305] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.215065][ T4305] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.286956][ T3107] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.301419][ T3107] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.311810][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.340888][ T1271] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.350150][ T1271] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.357694][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.518531][ T4317] [ 83.520967][ T4317] ====================================================== [ 83.528012][ T4317] WARNING: possible circular locking dependency detected [ 83.535085][ T4317] syzkaller #0 Not tainted [ 83.539525][ T4317] ------------------------------------------------------ [ 83.546581][ T4317] syz.0.17/4317 is trying to acquire lock: [ 83.552411][ T4317] ffff88802874cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 83.563535][ T4317] [ 83.563535][ T4317] but task is already holding lock: [ 83.570924][ T4317] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.580627][ T4317] [ 83.580627][ T4317] which lock already depends on the new lock. [ 83.580627][ T4317] [ 83.591062][ T4317] [ 83.591062][ T4317] the existing dependency chain (in reverse order) is: [ 83.600099][ T4317] [ 83.600099][ T4317] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.608121][ T4317] __mutex_lock_common+0x1e3/0x2400 [ 83.613876][ T4317] mutex_lock_nested+0x17/0x20 [ 83.619191][ T4317] rfkill_register+0x33/0x980 [ 83.624425][ T4317] hci_register_dev+0x452/0x970 [ 83.630210][ T4317] vhci_create_device+0x32c/0x5c0 [ 83.635799][ T4317] vhci_write+0x391/0x450 [ 83.640681][ T4317] vfs_write+0x745/0xd60 [ 83.645476][ T4317] ksys_write+0x152/0x260 [ 83.650356][ T4317] do_syscall_64+0x4c/0xa0 [ 83.655321][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.661764][ T4317] [ 83.661764][ T4317] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.669612][ T4317] __mutex_lock_common+0x1e3/0x2400 [ 83.675359][ T4317] mutex_lock_nested+0x17/0x20 [ 83.680667][ T4317] vhci_send_frame+0x88/0x100 [ 83.685896][ T4317] hci_send_frame+0x1a9/0x2e0 [ 83.691125][ T4317] hci_tx_work+0x9f9/0x1710 [ 83.696186][ T4317] process_one_work+0x85f/0x1010 [ 83.701677][ T4317] worker_thread+0xaa6/0x1290 [ 83.706914][ T4317] kthread+0x436/0x520 [ 83.711544][ T4317] ret_from_fork+0x1f/0x30 [ 83.716513][ T4317] [ 83.716513][ T4317] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.725750][ T4317] __flush_work+0x116/0x210 [ 83.730810][ T4317] hci_dev_do_close+0x1e7/0x1030 [ 83.736299][ T4317] hci_unregister_dev+0x2d7/0x580 [ 83.741867][ T4317] vhci_release+0x73/0xc0 [ 83.746745][ T4317] __fput+0x234/0x930 [ 83.751275][ T4317] task_work_run+0x125/0x1a0 [ 83.756427][ T4317] do_exit+0x626/0x20c0 [ 83.761132][ T4317] do_group_exit+0x12e/0x300 [ 83.766265][ T4317] get_signal+0x6d6/0x12d0 [ 83.771221][ T4317] arch_do_signal_or_restart+0xe7/0x12c0 [ 83.777401][ T4317] exit_to_user_mode_loop+0x9e/0x130 [ 83.783229][ T4317] exit_to_user_mode_prepare+0xee/0x180 [ 83.789328][ T4317] syscall_exit_to_user_mode+0x16/0x40 [ 83.795343][ T4317] do_syscall_64+0x58/0xa0 [ 83.800303][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.806739][ T4317] [ 83.806739][ T4317] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 83.814412][ T4317] __mutex_lock_common+0x1e3/0x2400 [ 83.820162][ T4317] mutex_lock_nested+0x17/0x20 [ 83.825477][ T4317] bg_scan_update+0x44/0x3b0 [ 83.830622][ T4317] process_one_work+0x85f/0x1010 [ 83.836109][ T4317] worker_thread+0xaa6/0x1290 [ 83.841337][ T4317] kthread+0x436/0x520 [ 83.845955][ T4317] ret_from_fork+0x1f/0x30 [ 83.850927][ T4317] [ 83.850927][ T4317] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.860776][ T4317] __lock_acquire+0x2c42/0x7d10 [ 83.866177][ T4317] lock_acquire+0x19e/0x400 [ 83.871230][ T4317] __flush_work+0x116/0x210 [ 83.876280][ T4317] __cancel_work_timer+0x3f4/0x560 [ 83.881942][ T4317] hci_request_cancel_all+0xcc/0x300 [ 83.887783][ T4317] hci_dev_do_close+0x4e/0x1030 [ 83.893194][ T4317] hci_rfkill_set_block+0x10a/0x190 [ 83.898962][ T4317] rfkill_set_block+0x1c9/0x3d0 [ 83.904377][ T4317] rfkill_fop_write+0x452/0x560 [ 83.909777][ T4317] vfs_write+0x30b/0xd60 [ 83.914568][ T4317] ksys_write+0x152/0x260 [ 83.919443][ T4317] do_syscall_64+0x4c/0xa0 [ 83.924403][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.930847][ T4317] [ 83.930847][ T4317] other info that might help us debug this: [ 83.930847][ T4317] [ 83.941097][ T4317] Chain exists of: [ 83.941097][ T4317] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.941097][ T4317] [ 83.956868][ T4317] Possible unsafe locking scenario: [ 83.956868][ T4317] [ 83.964345][ T4317] CPU0 CPU1 [ 83.969728][ T4317] ---- ---- [ 83.975107][ T4317] lock(rfkill_global_mutex); [ 83.979899][ T4317] lock(&data->open_mutex); [ 83.987033][ T4317] lock(rfkill_global_mutex); [ 83.994339][ T4317] lock((work_completion)(&hdev->bg_scan_update)); [ 84.000956][ T4317] [ 84.000956][ T4317] *** DEADLOCK *** [ 84.000956][ T4317] [ 84.009133][ T4317] 1 lock held by syz.0.17/4317: [ 84.014009][ T4317] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.024140][ T4317] [ 84.024140][ T4317] stack backtrace: [ 84.030065][ T4317] CPU: 0 PID: 4317 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.037291][ T4317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 84.047380][ T4317] Call Trace: [ 84.050719][ T4317] [ 84.053677][ T4317] dump_stack_lvl+0x188/0x250 [ 84.058390][ T4317] ? load_image+0x400/0x400 [ 84.062924][ T4317] ? show_regs_print_info+0x20/0x20 [ 84.068158][ T4317] ? print_circular_bug+0x12b/0x1a0 [ 84.073386][ T4317] check_noncircular+0x296/0x330 [ 84.078353][ T4317] ? look_up_lock_class+0x71/0x110 [ 84.083492][ T4317] ? add_chain_block+0x940/0x940 [ 84.088461][ T4317] ? lockdep_lock+0xf1/0x1f0 [ 84.093077][ T4317] ? __lock_acquire+0x12e8/0x7d10 [ 84.098126][ T4317] ? mark_lock+0x94/0x320 [ 84.102478][ T4317] __lock_acquire+0x2c42/0x7d10 [ 84.107373][ T4317] ? verify_lock_unused+0x140/0x140 [ 84.112602][ T4317] ? verify_lock_unused+0x140/0x140 [ 84.117832][ T4317] ? mark_lock+0x94/0x320 [ 84.122187][ T4317] lock_acquire+0x19e/0x400 [ 84.126716][ T4317] ? __flush_work+0xfa/0x210 [ 84.131336][ T4317] ? __lock_acquire+0x7d10/0x7d10 [ 84.136391][ T4317] ? read_lock_is_recursive+0x10/0x10 [ 84.141796][ T4317] ? start_flush_work+0x776/0x820 [ 84.146856][ T4317] __flush_work+0x116/0x210 [ 84.151385][ T4317] ? __flush_work+0xfa/0x210 [ 84.156007][ T4317] ? flush_work+0x20/0x20 [ 84.160363][ T4317] ? try_to_grab_pending+0xfa/0x7f0 [ 84.165686][ T4317] ? mark_lock+0x94/0x320 [ 84.170046][ T4317] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 84.176118][ T4317] ? lock_chain_count+0x20/0x20 [ 84.181008][ T4317] ? mark_lock+0x94/0x320 [ 84.185375][ T4317] ? __cancel_work_timer+0x36a/0x560 [ 84.190695][ T4317] __cancel_work_timer+0x3f4/0x560 [ 84.195863][ T4317] ? cancel_work_sync+0x20/0x20 [ 84.200746][ T4317] ? __cancel_work+0x1f9/0x2e0 [ 84.205547][ T4317] ? lockdep_hardirqs_on+0x94/0x140 [ 84.210782][ T4317] ? __cancel_work+0x27b/0x2e0 [ 84.215577][ T4317] ? cancel_work+0x20/0x20 [ 84.220026][ T4317] ? lock_chain_count+0x20/0x20 [ 84.224912][ T4317] hci_request_cancel_all+0xcc/0x300 [ 84.230239][ T4317] hci_dev_do_close+0x4e/0x1030 [ 84.235175][ T4317] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 84.241100][ T4317] ? _raw_spin_unlock+0x40/0x40 [ 84.245987][ T4317] hci_rfkill_set_block+0x10a/0x190 [ 84.251216][ T4317] ? rcu_lock_release+0x20/0x20 [ 84.256132][ T4317] rfkill_set_block+0x1c9/0x3d0 [ 84.261022][ T4317] rfkill_fop_write+0x452/0x560 [ 84.265903][ T4317] ? rfkill_fop_read+0x520/0x520 [ 84.270871][ T4317] ? common_file_perm+0xc0/0x1c0 [ 84.275852][ T4317] ? fsnotify_perm+0x5d/0x560 [ 84.280565][ T4317] ? security_file_permission+0x75/0xa0 [ 84.286140][ T4317] ? rfkill_fop_read+0x520/0x520 [ 84.291104][ T4317] vfs_write+0x30b/0xd60 [ 84.295381][ T4317] ? file_end_write+0x250/0x250 [ 84.300268][ T4317] ? __context_tracking_exit+0x4c/0x80 [ 84.305765][ T4317] ? __lock_acquire+0x7d10/0x7d10 [ 84.310829][ T4317] ? __fdget_pos+0x1e2/0x370 [ 84.315447][ T4317] ksys_write+0x152/0x260 [ 84.319804][ T4317] ? __ia32_sys_read+0x80/0x80 [ 84.324778][ T4317] ? lockdep_hardirqs_on+0x94/0x140 [ 84.330168][ T4317] do_syscall_64+0x4c/0xa0 [ 84.334601][ T4317] ? clear_bhb_loop+0x30/0x80 [ 84.339293][ T4317] ? clear_bhb_loop+0x30/0x80 [ 84.343987][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.349911][ T4317] RIP: 0033:0x7faaea28de59 [ 84.354352][ T4317] 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 [ 84.374058][ T4317] RSP: 002b:00007ffc29b129d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.382489][ T4317] RAX: ffffffffffffffda RBX: 00007faaea506fa0 RCX: 00007faaea28de59 [ 84.390479][ T4317] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 84.398472][ T4317] RBP: 00007faaea323d6f R08: 0000000000000000 R09: 0000000000000000 [ 84.406471][ T4317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.414457][ T4317] R13: 00007faaea506fac R14: 00007faaea506fa0 R15: 00007faaea506fa0 [ 84.422452][ T4317] [ 84.433571][ T1326] Bluetooth: hci0: command 0x040f tx timeout