Warning: Permanently added '10.128.1.60' (ED25519) to the list of known hosts. 2026/08/01 21:50:47 parsed 1 programs 2026/08/01 21:50:47 serving rpc on tcp://33917 [ 64.202785][ T4197] cgroup: Unknown subsys name 'net' [ 64.337550][ T4197] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 65.572318][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 68.538823][ T299] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.552300][ T299] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.572117][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.604294][ T299] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.612796][ T299] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.621097][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.787638][ T4257] chnl_net:caif_netlink_parms(): no params data found [ 68.856805][ T4257] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.868353][ T4257] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.876848][ T4257] device bridge_slave_0 entered promiscuous mode [ 68.889641][ T4257] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.896907][ T4257] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.905161][ T4257] device bridge_slave_1 entered promiscuous mode [ 68.937889][ T4257] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.949383][ T4257] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.986659][ T4257] team0: Port device team_slave_0 added [ 68.995047][ T4257] team0: Port device team_slave_1 added [ 69.020529][ T4257] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.028006][ T4257] 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. [ 69.055209][ T4257] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.067570][ T4257] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.074605][ T4257] 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. [ 69.100713][ T4257] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.126566][ T4257] device hsr_slave_0 entered promiscuous mode [ 69.134018][ T4257] device hsr_slave_1 entered promiscuous mode [ 69.211797][ T4257] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.222373][ T4257] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.232200][ T4257] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.242509][ T4257] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.288715][ T4257] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.304653][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.317471][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.326195][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.337829][ T4257] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.347880][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.357396][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.366717][ T299] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.374284][ T299] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.385354][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.396375][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.405588][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.414098][ T299] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.421143][ T299] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.465347][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.475150][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.483993][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.496198][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.508442][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.538500][ T4257] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.634691][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.643593][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.672727][ T4257] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.690840][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.728468][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.737059][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.746764][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.758147][ T4257] device veth0_vlan entered promiscuous mode [ 69.791010][ T4257] device veth1_vlan entered promiscuous mode [ 69.810903][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.820394][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.829335][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.839721][ T4257] device veth0_macvtap entered promiscuous mode [ 69.850809][ T4257] device veth1_macvtap entered promiscuous mode [ 69.895102][ T4257] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.903786][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.913979][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.925500][ T4257] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.933132][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.942443][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.970795][ T4257] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.980725][ T4257] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.989799][ T4257] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.998663][ T4257] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/08/01 21:50:55 executed programs: 0 [ 71.005787][ T4306] chnl_net:caif_netlink_parms(): no params data found [ 71.069882][ T4306] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.078518][ T4306] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.088972][ T4306] device bridge_slave_0 entered promiscuous mode [ 71.100419][ T4306] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.113288][ T4306] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.121538][ T4306] device bridge_slave_1 entered promiscuous mode [ 71.157009][ T4306] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.170502][ T4306] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.204291][ T4306] team0: Port device team_slave_0 added [ 71.214789][ T4306] team0: Port device team_slave_1 added [ 71.240397][ T4306] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.248694][ T4306] 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. [ 71.278167][ T4306] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.290712][ T4306] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.300118][ T4306] 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. [ 71.328689][ T4306] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.367495][ T4306] device hsr_slave_0 entered promiscuous mode [ 71.374741][ T4306] device hsr_slave_1 entered promiscuous mode [ 71.381427][ T4306] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.389393][ T4306] Cannot create hsr debugfs directory [ 71.496339][ T4306] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.535583][ T1430] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.542382][ T1430] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.892721][ T4282] Bluetooth: hci0: command 0x0409 tx timeout [ 74.982829][ T4260] Bluetooth: hci0: command 0x041b tx timeout [ 75.198636][ T4306] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.366752][ T4306] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.438907][ T4306] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.540792][ T4306] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.549854][ T4306] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.558795][ T4306] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.567869][ T4306] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.620589][ T4306] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.635413][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.643431][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.652870][ T4306] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.672927][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.681610][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.690413][ T3027] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.697525][ T3027] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.708354][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.716676][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.725778][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.734668][ T3027] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.741737][ T3027] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.760994][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.773910][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.786868][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.796346][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.805326][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.823849][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.832847][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.843913][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.853598][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.864356][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.874164][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.885141][ T4306] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.973385][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.980880][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.993520][ T4306] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.019596][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.029065][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.056531][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.065594][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.074979][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.082948][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.094665][ T4306] device veth0_vlan entered promiscuous mode [ 76.118119][ T4306] device veth1_vlan entered promiscuous mode [ 76.136821][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.145729][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.155003][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.164289][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.177081][ T4306] device veth0_macvtap entered promiscuous mode [ 76.188703][ T9] device hsr_slave_0 left promiscuous mode [ 76.195532][ T9] device hsr_slave_1 left promiscuous mode [ 76.203826][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.211634][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.220742][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.228805][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.236950][ T9] device bridge_slave_1 left promiscuous mode [ 76.243986][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.257637][ T9] device bridge_slave_0 left promiscuous mode [ 76.263951][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.280058][ T9] device veth1_macvtap left promiscuous mode [ 76.286755][ T9] device veth0_macvtap left promiscuous mode [ 76.293846][ T9] device veth1_vlan left promiscuous mode [ 76.299874][ T9] device veth0_vlan left promiscuous mode [ 76.437121][ T9] team0 (unregistering): Port device team_slave_1 removed [ 76.452541][ T9] team0 (unregistering): Port device team_slave_0 removed [ 76.465381][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.479150][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.538008][ T9] bond0 (unregistering): Released all slaves [ 76.568448][ T4306] device veth1_macvtap entered promiscuous mode [ 76.586273][ T4306] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.593928][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.602265][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.610294][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.619600][ T299] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.635869][ T4306] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.646703][ T4306] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.656165][ T4306] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.665056][ T4306] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.673898][ T4306] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.691664][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.700895][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.766251][ T299] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.775449][ T299] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.784387][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.801076][ T4321] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.809650][ T4321] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.820205][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.930113][ T4322] [ 76.932489][ T4322] ====================================================== [ 76.939509][ T4322] WARNING: possible circular locking dependency detected [ 76.946535][ T4322] syzkaller #0 Not tainted [ 76.950949][ T4322] ------------------------------------------------------ [ 76.957966][ T4322] syz.0.17/4322 is trying to acquire lock: [ 76.963858][ T4322] ffff8880699d9028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 76.975016][ T4322] [ 76.975016][ T4322] but task is already holding lock: [ 76.982385][ T4322] ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.992072][ T4322] [ 76.992072][ T4322] which lock already depends on the new lock. [ 76.992072][ T4322] [ 77.002480][ T4322] [ 77.002480][ T4322] the existing dependency chain (in reverse order) is: [ 77.011610][ T4322] [ 77.011610][ T4322] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 77.019969][ T4322] __mutex_lock_common+0x1e5/0x2400 [ 77.025710][ T4322] mutex_lock_nested+0x17/0x20 [ 77.031042][ T4322] rfkill_register+0x2f/0x970 [ 77.036846][ T4322] hci_register_dev+0x459/0x980 [ 77.042234][ T4322] vhci_create_device+0x32e/0x5c0 [ 77.047803][ T4322] vhci_write+0x389/0x440 [ 77.052671][ T4322] vfs_write+0x748/0xd70 [ 77.057639][ T4322] ksys_write+0x153/0x260 [ 77.062507][ T4322] do_syscall_64+0x4c/0xa0 [ 77.067542][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.073963][ T4322] [ 77.073963][ T4322] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 77.081879][ T4322] __mutex_lock_common+0x1e5/0x2400 [ 77.087610][ T4322] mutex_lock_nested+0x17/0x20 [ 77.092907][ T4322] vhci_send_frame+0x88/0x100 [ 77.098113][ T4322] hci_send_frame+0x1a9/0x2e0 [ 77.103326][ T4322] hci_tx_work+0x9b5/0x16d0 [ 77.108386][ T4322] process_one_work+0x867/0xff0 [ 77.113946][ T4322] worker_thread+0xad7/0x12a0 [ 77.119538][ T4322] kthread+0x42e/0x520 [ 77.124222][ T4322] ret_from_fork+0x1f/0x30 [ 77.129260][ T4322] [ 77.129260][ T4322] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 77.138472][ T4322] __flush_work+0x116/0x210 [ 77.143509][ T4322] hci_dev_do_close+0x201/0x1020 [ 77.148977][ T4322] hci_unregister_dev+0x2eb/0x590 [ 77.154550][ T4322] vhci_release+0x73/0xc0 [ 77.159398][ T4322] __fput+0x212/0x8c0 [ 77.163898][ T4322] task_work_run+0x125/0x1a0 [ 77.169004][ T4322] do_exit+0x635/0x2110 [ 77.173682][ T4322] do_group_exit+0x12c/0x2f0 [ 77.178792][ T4322] get_signal+0x7eb/0x12e0 [ 77.183735][ T4322] arch_do_signal_or_restart+0xe6/0x12a0 [ 77.189891][ T4322] exit_to_user_mode_loop+0x9e/0x130 [ 77.195694][ T4322] exit_to_user_mode_prepare+0xee/0x180 [ 77.201757][ T4322] syscall_exit_to_user_mode+0x16/0x40 [ 77.207735][ T4322] do_syscall_64+0x58/0xa0 [ 77.212672][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.219084][ T4322] [ 77.219084][ T4322] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 77.226743][ T4322] __mutex_lock_common+0x1e5/0x2400 [ 77.232467][ T4322] mutex_lock_nested+0x17/0x20 [ 77.237764][ T4322] bg_scan_update+0x44/0x3b0 [ 77.242885][ T4322] process_one_work+0x867/0xff0 [ 77.248266][ T4322] worker_thread+0xad7/0x12a0 [ 77.253480][ T4322] kthread+0x42e/0x520 [ 77.258077][ T4322] ret_from_fork+0x1f/0x30 [ 77.263123][ T4322] [ 77.263123][ T4322] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 77.273032][ T4322] __lock_acquire+0x2c66/0x7b50 [ 77.278414][ T4322] lock_acquire+0x19e/0x400 [ 77.283447][ T4322] __flush_work+0x116/0x210 [ 77.288584][ T4322] __cancel_work_timer+0x3f4/0x560 [ 77.294328][ T4322] hci_request_cancel_all+0xcc/0x300 [ 77.300136][ T4322] hci_dev_do_close+0x4e/0x1020 [ 77.305512][ T4322] hci_rfkill_set_block+0x101/0x180 [ 77.311226][ T4322] rfkill_set_block+0x1c1/0x3c0 [ 77.316691][ T4322] rfkill_fop_write+0x453/0x560 [ 77.322076][ T4322] vfs_write+0x304/0xd70 [ 77.326839][ T4322] ksys_write+0x153/0x260 [ 77.331691][ T4322] do_syscall_64+0x4c/0xa0 [ 77.336672][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.343203][ T4322] [ 77.343203][ T4322] other info that might help us debug this: [ 77.343203][ T4322] [ 77.353424][ T4322] Chain exists of: [ 77.353424][ T4322] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 77.353424][ T4322] [ 77.369223][ T4322] Possible unsafe locking scenario: [ 77.369223][ T4322] [ 77.376674][ T4322] CPU0 CPU1 [ 77.382074][ T4322] ---- ---- [ 77.387539][ T4322] lock(rfkill_global_mutex); [ 77.392311][ T4322] lock(&data->open_mutex); [ 77.399427][ T4322] lock(rfkill_global_mutex); [ 77.406716][ T4322] lock((work_completion)(&hdev->bg_scan_update)); [ 77.413400][ T4322] [ 77.413400][ T4322] *** DEADLOCK *** [ 77.413400][ T4322] [ 77.421553][ T4322] 1 lock held by syz.0.17/4322: [ 77.426492][ T4322] #0: ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 77.436604][ T4322] [ 77.436604][ T4322] stack backtrace: [ 77.442615][ T4322] CPU: 0 PID: 4322 Comm: syz.0.17 Not tainted syzkaller #0 [ 77.450186][ T4322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 77.460351][ T4322] Call Trace: [ 77.463657][ T4322] [ 77.466594][ T4322] dump_stack_lvl+0x188/0x250 [ 77.471383][ T4322] ? load_image+0x410/0x410 [ 77.475991][ T4322] ? show_regs_print_info+0x20/0x20 [ 77.481204][ T4322] ? print_circular_bug+0x12b/0x1a0 [ 77.486411][ T4322] check_noncircular+0x296/0x330 [ 77.491359][ T4322] ? look_up_lock_class+0x71/0x110 [ 77.496487][ T4322] ? add_chain_block+0x9b0/0x9b0 [ 77.501533][ T4322] ? lockdep_lock+0xf1/0x1f0 [ 77.506153][ T4322] ? __lock_acquire+0x1305/0x7b50 [ 77.511627][ T4322] ? mark_lock+0x94/0x320 [ 77.515974][ T4322] ? _find_first_zero_bit+0xd1/0xf0 [ 77.521256][ T4322] __lock_acquire+0x2c66/0x7b50 [ 77.526208][ T4322] ? verify_lock_unused+0x140/0x140 [ 77.531422][ T4322] ? verify_lock_unused+0x140/0x140 [ 77.536645][ T4322] lock_acquire+0x19e/0x400 [ 77.541160][ T4322] ? __flush_work+0xfa/0x210 [ 77.545768][ T4322] ? __lock_acquire+0x7b50/0x7b50 [ 77.550812][ T4322] ? read_lock_is_recursive+0x10/0x10 [ 77.556195][ T4322] ? start_flush_work+0x784/0x830 [ 77.561874][ T4322] __flush_work+0x116/0x210 [ 77.566390][ T4322] ? __flush_work+0xfa/0x210 [ 77.570992][ T4322] ? flush_work+0x20/0x20 [ 77.575333][ T4322] ? try_to_grab_pending+0xfb/0x820 [ 77.580628][ T4322] ? mark_lock+0x94/0x320 [ 77.584972][ T4322] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 77.591315][ T4322] ? lock_chain_count+0x20/0x20 [ 77.596219][ T4322] ? mark_lock+0x94/0x320 [ 77.600563][ T4322] ? __cancel_work_timer+0x36a/0x560 [ 77.605948][ T4322] __cancel_work_timer+0x3f4/0x560 [ 77.611073][ T4322] ? cancel_work_sync+0x20/0x20 [ 77.615935][ T4322] ? __cancel_work+0x1f9/0x2e0 [ 77.620708][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 77.626050][ T4322] ? __cancel_work+0x27b/0x2e0 [ 77.630840][ T4322] ? cancel_work+0x20/0x20 [ 77.635276][ T4322] hci_request_cancel_all+0xcc/0x300 [ 77.640576][ T4322] hci_dev_do_close+0x4e/0x1020 [ 77.645472][ T4322] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 77.651392][ T4322] ? _raw_spin_unlock+0x40/0x40 [ 77.656317][ T4322] hci_rfkill_set_block+0x101/0x180 [ 77.661534][ T4322] ? rcu_lock_release+0x20/0x20 [ 77.666488][ T4322] rfkill_set_block+0x1c1/0x3c0 [ 77.671354][ T4322] rfkill_fop_write+0x453/0x560 [ 77.676218][ T4322] ? rfkill_fop_read+0x560/0x560 [ 77.681258][ T4322] ? common_file_perm+0x100/0x1c0 [ 77.686399][ T4322] ? fsnotify_perm+0x5d/0x560 [ 77.691247][ T4322] ? security_file_permission+0x75/0xa0 [ 77.696799][ T4322] ? rfkill_fop_read+0x560/0x560 [ 77.701793][ T4322] vfs_write+0x304/0xd70 [ 77.706048][ T4322] ? file_end_write+0x250/0x250 [ 77.710959][ T4322] ? __context_tracking_exit+0x4c/0x80 [ 77.716435][ T4322] ? __fdget_pos+0x1e2/0x370 [ 77.721117][ T4322] ksys_write+0x153/0x260 [ 77.725636][ T4322] ? __ia32_sys_read+0x80/0x80 [ 77.730411][ T4322] ? lockdep_hardirqs_on+0x94/0x140 [ 77.735629][ T4322] do_syscall_64+0x4c/0xa0 [ 77.740065][ T4322] ? clear_bhb_loop+0x30/0x80 [ 77.744753][ T4322] ? clear_bhb_loop+0x30/0x80 [ 77.749441][ T4322] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.755362][ T4322] RIP: 0033:0x7ffa205cc019 [ 77.759785][ T4322] 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 [ 77.779405][ T4322] RSP: 002b:00007ffc89ba9668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 77.787861][ T4322] RAX: ffffffffffffffda RBX: 00007ffa20853fa0 RCX: 00007ffa205cc019 [ 77.795843][ T4322] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 77.803827][ T4322] RBP: 00007ffa2066300c R08: 0000000000000000 R09: 0000000000000000 [ 77.811807][ T4322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.819794][ T4322] R13: 00007ffa20853fac R14: 00007ffa20853fa0 R15: 00007ffa20853fa0 [ 77.828139][ T4322] [ 77.834185][ T4230] Bluetooth: hci0: command 0x040f tx timeout