Warning: Permanently added '10.128.1.106' (ED25519) to the list of known hosts. 2026/04/30 06:50:14 parsed 1 programs [ 61.492209][ T4190] cgroup: Unknown subsys name 'net' [ 61.636335][ T4190] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 63.036674][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 64.887182][ T446] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.895373][ T446] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.907546][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.926715][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.935362][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.946424][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.429665][ T154] ODEBUG: Out of memory. ODEBUG disabled [ 66.793190][ T4267] chnl_net:caif_netlink_parms(): no params data found [ 66.837825][ T4267] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.845430][ T4267] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.853418][ T4267] device bridge_slave_0 entered promiscuous mode [ 66.862340][ T4267] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.869433][ T4267] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.877360][ T4267] device bridge_slave_1 entered promiscuous mode [ 66.896907][ T4267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.907815][ T4267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.930130][ T4267] team0: Port device team_slave_0 added [ 66.937189][ T4267] team0: Port device team_slave_1 added [ 66.952784][ T4267] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.959726][ T4267] 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. [ 66.985935][ T4267] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.998190][ T4267] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.005196][ T4267] 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. [ 67.031157][ T4267] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.060127][ T4267] device hsr_slave_0 entered promiscuous mode [ 67.067100][ T4267] device hsr_slave_1 entered promiscuous mode [ 67.153845][ T4267] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.164204][ T4267] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.190481][ T4267] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.199448][ T4267] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.218664][ T4267] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.225885][ T4267] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.233521][ T4267] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.240651][ T4267] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.297499][ T4267] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.314602][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.324945][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.333014][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.345776][ T4267] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.373440][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.382058][ T446] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.389114][ T446] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.397158][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.406031][ T446] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.413112][ T446] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.433227][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.443602][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.453297][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.485119][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.497007][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.508035][ T4267] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.602496][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.609986][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.642670][ T4267] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.658782][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.697796][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.706200][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.715470][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.724319][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.734658][ T4267] device veth0_vlan entered promiscuous mode [ 67.758154][ T4267] device veth1_vlan entered promiscuous mode [ 67.777381][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.785604][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.794847][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.803263][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.813894][ T4267] device veth0_macvtap entered promiscuous mode [ 67.823678][ T4267] device veth1_macvtap entered promiscuous mode [ 67.852322][ T4267] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.861113][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.869059][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.877493][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.886729][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.897624][ T4267] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.906735][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.915462][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.942018][ T4267] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.951316][ T4267] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.960021][ T4267] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.968913][ T4267] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.060693][ T4267] syz-executor (4267) used greatest stack depth: 20496 bytes left 2026/04/30 06:50:24 executed programs: 0 [ 68.889195][ T4294] chnl_net:caif_netlink_parms(): no params data found [ 68.952191][ T4294] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.959353][ T4294] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.969629][ T4294] device bridge_slave_0 entered promiscuous mode [ 68.978730][ T4294] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.987946][ T4294] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.996068][ T4294] device bridge_slave_1 entered promiscuous mode [ 69.023735][ T4294] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.035228][ T4294] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.068282][ T4294] team0: Port device team_slave_0 added [ 69.076058][ T4294] team0: Port device team_slave_1 added [ 69.098724][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.108714][ T4294] 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. [ 69.138514][ T4294] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.154313][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.161670][ T4294] 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. [ 69.189808][ T4294] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.226797][ T4294] device hsr_slave_0 entered promiscuous mode [ 69.233769][ T4294] device hsr_slave_1 entered promiscuous mode [ 69.240950][ T4294] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.248831][ T4294] Cannot create hsr debugfs directory [ 69.333494][ T4294] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.811037][ T4303] Bluetooth: hci0: command 0x0409 tx timeout [ 71.133158][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.139692][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.207693][ T4294] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.825296][ T4294] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.896044][ T4294] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.906590][ T4261] Bluetooth: hci0: command 0x041b tx timeout [ 73.010712][ T4294] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.020657][ T4294] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.029415][ T4294] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.039618][ T4294] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.098756][ T4294] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.121489][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.129377][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.141067][ T4294] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.150173][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.159543][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.168816][ T446] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.175939][ T446] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.184398][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.195496][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.204930][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.214459][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.221580][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.246477][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.256141][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.267895][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.277174][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.286297][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.309374][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.318315][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.328660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.337082][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.359758][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.368302][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.377904][ T4294] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.445853][ T154] device hsr_slave_0 left promiscuous mode [ 73.453378][ T154] device hsr_slave_1 left promiscuous mode [ 73.459888][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 73.467843][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 73.476876][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 73.484827][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 73.493104][ T154] device bridge_slave_1 left promiscuous mode [ 73.499899][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.514117][ T154] device bridge_slave_0 left promiscuous mode [ 73.521339][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.537529][ T154] device veth1_macvtap left promiscuous mode [ 73.544362][ T154] device veth0_macvtap left promiscuous mode [ 73.550717][ T154] device veth1_vlan left promiscuous mode [ 73.556569][ T154] device veth0_vlan left promiscuous mode [ 73.686250][ T154] team0 (unregistering): Port device team_slave_1 removed [ 73.700680][ T154] team0 (unregistering): Port device team_slave_0 removed [ 73.713175][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 73.726170][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.776926][ T154] bond0 (unregistering): Released all slaves [ 73.833689][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.841426][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.852849][ T4294] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.878066][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.887361][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.907046][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.915452][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.925342][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.933243][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.942732][ T4294] device veth0_vlan entered promiscuous mode [ 73.955777][ T4294] device veth1_vlan entered promiscuous mode [ 73.977137][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.985563][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.994886][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.003605][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.014097][ T4294] device veth0_macvtap entered promiscuous mode [ 74.024391][ T4294] device veth1_macvtap entered promiscuous mode [ 74.043313][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.052508][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.062083][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.069943][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.078977][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.088840][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.097208][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.106365][ T446] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.118717][ T4294] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.129129][ T4294] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.138188][ T4294] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.147246][ T4294] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.193396][ T446] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.207588][ T446] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.215780][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.240778][ T446] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.248629][ T446] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.258443][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.372854][ T4314] [ 74.375249][ T4314] ====================================================== [ 74.382280][ T4314] WARNING: possible circular locking dependency detected [ 74.389327][ T4314] syzkaller #0 Not tainted [ 74.393762][ T4314] ------------------------------------------------------ [ 74.400796][ T4314] syz.0.17/4314 is trying to acquire lock: [ 74.406630][ T4314] ffff88807aba0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 74.417809][ T4314] [ 74.417809][ T4314] but task is already holding lock: [ 74.425189][ T4314] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 74.434871][ T4314] [ 74.434871][ T4314] which lock already depends on the new lock. [ 74.434871][ T4314] [ 74.445293][ T4314] [ 74.445293][ T4314] the existing dependency chain (in reverse order) is: [ 74.454315][ T4314] [ 74.454315][ T4314] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 74.462326][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 74.468069][ T4314] mutex_lock_nested+0x17/0x20 [ 74.473385][ T4314] rfkill_register+0x33/0x980 [ 74.478613][ T4314] hci_register_dev+0x452/0x970 [ 74.484006][ T4314] vhci_create_device+0x32c/0x5c0 [ 74.489580][ T4314] vhci_write+0x391/0x450 [ 74.494458][ T4314] vfs_write+0x745/0xd60 [ 74.499250][ T4314] ksys_write+0x152/0x260 [ 74.504129][ T4314] do_syscall_64+0x4c/0xa0 [ 74.509088][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.515548][ T4314] [ 74.515548][ T4314] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 74.523387][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 74.529135][ T4314] mutex_lock_nested+0x17/0x20 [ 74.534466][ T4314] vhci_send_frame+0x88/0x100 [ 74.539698][ T4314] hci_send_frame+0x1a9/0x2e0 [ 74.544935][ T4314] hci_tx_work+0x9f9/0x1710 [ 74.550005][ T4314] process_one_work+0x85f/0x1010 [ 74.555486][ T4314] worker_thread+0xaa6/0x1290 [ 74.560704][ T4314] kthread+0x436/0x520 [ 74.565310][ T4314] ret_from_fork+0x1f/0x30 [ 74.570274][ T4314] [ 74.570274][ T4314] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 74.579511][ T4314] __flush_work+0x116/0x210 [ 74.584559][ T4314] hci_dev_do_close+0x1e7/0x1030 [ 74.590040][ T4314] hci_unregister_dev+0x2d7/0x580 [ 74.595620][ T4314] vhci_release+0x73/0xc0 [ 74.600529][ T4314] __fput+0x234/0x930 [ 74.605048][ T4314] task_work_run+0x125/0x1a0 [ 74.610205][ T4314] do_exit+0x626/0x20c0 [ 74.614981][ T4314] do_group_exit+0x12e/0x300 [ 74.620117][ T4314] get_signal+0x6ca/0x12c0 [ 74.625073][ T4314] arch_do_signal_or_restart+0xe7/0x12c0 [ 74.631250][ T4314] exit_to_user_mode_loop+0x9e/0x130 [ 74.637085][ T4314] exit_to_user_mode_prepare+0xee/0x180 [ 74.643174][ T4314] syscall_exit_to_user_mode+0x16/0x40 [ 74.649175][ T4314] do_syscall_64+0x58/0xa0 [ 74.654131][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.660579][ T4314] [ 74.660579][ T4314] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 74.668239][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 74.673973][ T4314] mutex_lock_nested+0x17/0x20 [ 74.679309][ T4314] bg_scan_update+0x44/0x3b0 [ 74.684470][ T4314] process_one_work+0x85f/0x1010 [ 74.689959][ T4314] worker_thread+0xaa6/0x1290 [ 74.695185][ T4314] kthread+0x436/0x520 [ 74.699807][ T4314] ret_from_fork+0x1f/0x30 [ 74.704766][ T4314] [ 74.704766][ T4314] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 74.714605][ T4314] __lock_acquire+0x2c42/0x7d10 [ 74.720001][ T4314] lock_acquire+0x19e/0x400 [ 74.725050][ T4314] __flush_work+0x116/0x210 [ 74.730090][ T4314] __cancel_work_timer+0x3f4/0x560 [ 74.735739][ T4314] hci_request_cancel_all+0xcc/0x300 [ 74.741579][ T4314] hci_dev_do_close+0x4e/0x1030 [ 74.746976][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 74.752711][ T4314] rfkill_set_block+0x1c9/0x3d0 [ 74.758108][ T4314] rfkill_fop_write+0x452/0x560 [ 74.763495][ T4314] vfs_write+0x30b/0xd60 [ 74.768277][ T4314] ksys_write+0x152/0x260 [ 74.773144][ T4314] do_syscall_64+0x4c/0xa0 [ 74.778098][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.784531][ T4314] [ 74.784531][ T4314] other info that might help us debug this: [ 74.784531][ T4314] [ 74.794767][ T4314] Chain exists of: [ 74.794767][ T4314] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 74.794767][ T4314] [ 74.810522][ T4314] Possible unsafe locking scenario: [ 74.810522][ T4314] [ 74.817984][ T4314] CPU0 CPU1 [ 74.823358][ T4314] ---- ---- [ 74.828757][ T4314] lock(rfkill_global_mutex); [ 74.833546][ T4314] lock(&data->open_mutex); [ 74.840671][ T4314] lock(rfkill_global_mutex); [ 74.848008][ T4314] lock((work_completion)(&hdev->bg_scan_update)); [ 74.854626][ T4314] [ 74.854626][ T4314] *** DEADLOCK *** [ 74.854626][ T4314] [ 74.862780][ T4314] 1 lock held by syz.0.17/4314: [ 74.867653][ T4314] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 74.877780][ T4314] [ 74.877780][ T4314] stack backtrace: [ 74.883687][ T4314] CPU: 1 PID: 4314 Comm: syz.0.17 Not tainted syzkaller #0 [ 74.890910][ T4314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 74.901000][ T4314] Call Trace: [ 74.904298][ T4314] [ 74.907246][ T4314] dump_stack_lvl+0x188/0x250 [ 74.911956][ T4314] ? load_image+0x400/0x400 [ 74.916481][ T4314] ? show_regs_print_info+0x20/0x20 [ 74.921716][ T4314] ? print_circular_bug+0x12b/0x1a0 [ 74.926934][ T4314] check_noncircular+0x296/0x330 [ 74.931894][ T4314] ? look_up_lock_class+0x71/0x110 [ 74.937026][ T4314] ? add_chain_block+0x940/0x940 [ 74.941984][ T4314] ? lockdep_lock+0xf1/0x1f0 [ 74.946611][ T4314] ? __lock_acquire+0x12e8/0x7d10 [ 74.951663][ T4314] ? mark_lock+0x94/0x320 [ 74.956012][ T4314] __lock_acquire+0x2c42/0x7d10 [ 74.960905][ T4314] ? verify_lock_unused+0x140/0x140 [ 74.966136][ T4314] ? mark_lock+0x94/0x320 [ 74.970506][ T4314] lock_acquire+0x19e/0x400 [ 74.975033][ T4314] ? __flush_work+0xfa/0x210 [ 74.979667][ T4314] ? __lock_acquire+0x7d10/0x7d10 [ 74.984728][ T4314] ? read_lock_is_recursive+0x10/0x10 [ 74.990132][ T4314] ? start_flush_work+0x776/0x820 [ 74.995182][ T4314] __flush_work+0x116/0x210 [ 74.999699][ T4314] ? __flush_work+0xfa/0x210 [ 75.004313][ T4314] ? flush_work+0x20/0x20 [ 75.008669][ T4314] ? try_to_grab_pending+0xfa/0x7f0 [ 75.013940][ T4314] ? mark_lock+0x94/0x320 [ 75.018310][ T4314] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 75.024309][ T4314] ? lock_chain_count+0x20/0x20 [ 75.029181][ T4314] ? mark_lock+0x94/0x320 [ 75.033546][ T4314] ? __cancel_work_timer+0x36a/0x560 [ 75.038872][ T4314] __cancel_work_timer+0x3f4/0x560 [ 75.044004][ T4314] ? cancel_work_sync+0x20/0x20 [ 75.048901][ T4314] ? __cancel_work+0x1f9/0x2e0 [ 75.053698][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 75.058936][ T4314] ? __cancel_work+0x27b/0x2e0 [ 75.063727][ T4314] ? cancel_work+0x20/0x20 [ 75.068168][ T4314] ? lock_chain_count+0x20/0x20 [ 75.073077][ T4314] hci_request_cancel_all+0xcc/0x300 [ 75.078396][ T4314] hci_dev_do_close+0x4e/0x1030 [ 75.083269][ T4314] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 75.089179][ T4314] ? _raw_spin_unlock+0x40/0x40 [ 75.094066][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 75.099293][ T4314] ? rcu_lock_release+0x20/0x20 [ 75.104166][ T4314] rfkill_set_block+0x1c9/0x3d0 [ 75.109045][ T4314] rfkill_fop_write+0x452/0x560 [ 75.113929][ T4314] ? rfkill_fop_read+0x520/0x520 [ 75.118895][ T4314] ? common_file_perm+0x140/0x1c0 [ 75.123947][ T4314] ? fsnotify_perm+0x5d/0x560 [ 75.128654][ T4314] ? security_file_permission+0x75/0xa0 [ 75.134224][ T4314] ? rfkill_fop_read+0x520/0x520 [ 75.139192][ T4314] vfs_write+0x30b/0xd60 [ 75.143467][ T4314] ? file_end_write+0x250/0x250 [ 75.148339][ T4314] ? __context_tracking_exit+0x4c/0x80 [ 75.153813][ T4314] ? __lock_acquire+0x7d10/0x7d10 [ 75.158873][ T4314] ? __fdget_pos+0x1e2/0x370 [ 75.163481][ T4314] ksys_write+0x152/0x260 [ 75.167825][ T4314] ? __ia32_sys_read+0x80/0x80 [ 75.172612][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 75.177861][ T4314] do_syscall_64+0x4c/0xa0 [ 75.182296][ T4314] ? clear_bhb_loop+0x30/0x80 [ 75.186996][ T4314] ? clear_bhb_loop+0x30/0x80 [ 75.191697][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.197665][ T4314] RIP: 0033:0x7f09aea19dd9 [ 75.202116][ T4314] 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 [ 75.221741][ T4314] RSP: 002b:00007fff71676178 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 75.230191][ T4314] RAX: ffffffffffffffda RBX: 00007f09aec92fa0 RCX: 00007f09aea19dd9 [ 75.238190][ T4314] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 75.246229][ T4314] RBP: 00007f09aeaafd69 R08: 0000000000000000 R09: 0000000000000000 [ 75.254220][ T4314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.262206][ T4314] R13: 00007f09aec92fac R14: 00007f09aec92fa0 R15: 00007f09aec92fa0 [ 75.270204][ T4314] [ 75.293345][ T4260] Bluetooth: hci0: command 0x040f tx timeout