Warning: Permanently added '10.128.0.217' (ED25519) to the list of known hosts. 2026/05/30 22:51:00 parsed 1 programs [ 62.214547][ T4201] cgroup: Unknown subsys name 'net' [ 62.329523][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 63.735954][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 65.144827][ T4210] chnl_net:caif_netlink_parms(): no params data found [ 65.189635][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.197110][ T4210] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.205289][ T4210] device bridge_slave_0 entered promiscuous mode [ 65.214618][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.221736][ T4210] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.229841][ T4210] device bridge_slave_1 entered promiscuous mode [ 65.249912][ T4210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.261015][ T4210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.282816][ T4210] team0: Port device team_slave_0 added [ 65.290277][ T4210] team0: Port device team_slave_1 added [ 65.307774][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.314815][ T4210] 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. [ 65.340784][ T4210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.353173][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.360265][ T4210] 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. [ 65.386535][ T4210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.416805][ T4210] device hsr_slave_0 entered promiscuous mode [ 65.423683][ T4210] device hsr_slave_1 entered promiscuous mode [ 65.515696][ T4210] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.526876][ T4210] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.536851][ T4210] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.546149][ T4210] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.568934][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.576118][ T4210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.583926][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.592117][ T4210] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.635046][ T4210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.648153][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.657410][ T1650] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.667290][ T1650] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.675821][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.689106][ T4210] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.699589][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.709156][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.716260][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.728627][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.737301][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.744510][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.763767][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.772616][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.784781][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.797128][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.808727][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.820218][ T4210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.902770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.910379][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.924400][ T4210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.941517][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.960578][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.969402][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.977337][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.988188][ T4210] device veth0_vlan entered promiscuous mode [ 65.999268][ T4210] device veth1_vlan entered promiscuous mode [ 66.017938][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.026838][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.035566][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.046546][ T4210] device veth0_macvtap entered promiscuous mode [ 66.056064][ T4210] device veth1_macvtap entered promiscuous mode [ 66.072035][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.079934][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.089685][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.101158][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.109847][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.120800][ T4210] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.129928][ T4210] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.140567][ T4210] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.149561][ T4210] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.285386][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.929873][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.046755][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.053200][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.218514][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.270956][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.073227][ T9] device hsr_slave_0 left promiscuous mode [ 72.080465][ T9] device hsr_slave_1 left promiscuous mode [ 72.087719][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.095466][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.104823][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.112276][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.120342][ T9] device bridge_slave_1 left promiscuous mode [ 72.127349][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.142570][ T9] device bridge_slave_0 left promiscuous mode [ 72.150025][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.172152][ T9] device veth1_macvtap left promiscuous mode [ 72.178711][ T9] device veth0_macvtap left promiscuous mode [ 72.185160][ T9] device veth1_vlan left promiscuous mode [ 72.191105][ T9] device veth0_vlan left promiscuous mode [ 72.369720][ T9] team0 (unregistering): Port device team_slave_1 removed [ 72.382498][ T9] team0 (unregistering): Port device team_slave_0 removed [ 72.398024][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.412981][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.467063][ T9] bond0 (unregistering): Released all slaves [ 73.944166][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.952198][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.977816][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.997476][ T1650] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.006871][ T1650] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.018058][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.765415][ T9] ODEBUG: Out of memory. ODEBUG disabled 2026/05/30 22:51:15 executed programs: 0 [ 75.265042][ T4399] chnl_net:caif_netlink_parms(): no params data found [ 75.347179][ T4399] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.354417][ T4399] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.362388][ T4399] device bridge_slave_0 entered promiscuous mode [ 75.371809][ T4399] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.379177][ T4399] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.387590][ T4399] device bridge_slave_1 entered promiscuous mode [ 75.411315][ T4399] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.422692][ T4399] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.449447][ T4399] team0: Port device team_slave_0 added [ 75.457665][ T4399] team0: Port device team_slave_1 added [ 75.478348][ T4399] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.485676][ T4399] 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. [ 75.513612][ T4399] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.528795][ T4399] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.536087][ T4399] 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. [ 75.563657][ T4399] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.600268][ T4399] device hsr_slave_0 entered promiscuous mode [ 75.607333][ T4399] device hsr_slave_1 entered promiscuous mode [ 76.141190][ T4399] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.151765][ T4399] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.161019][ T4399] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.171225][ T4399] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.226474][ T4399] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.233596][ T4399] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.240968][ T4399] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.248127][ T4399] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.257836][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.272717][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.370879][ T4399] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.427472][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.438085][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.448632][ T4399] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.458660][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.467669][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.477227][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.484353][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.503784][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.513812][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.522262][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.529374][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.541429][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.551173][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.561332][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.571752][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.587233][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.596642][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.607291][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.616292][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.624946][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.663152][ T4399] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.677186][ T4399] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.686580][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.695260][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.832636][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.840355][ T1650] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.854307][ T4399] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.925906][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.936025][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.947044][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.955296][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.966789][ T4399] device veth0_vlan entered promiscuous mode [ 77.029495][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.039815][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.051862][ T4399] device veth1_vlan entered promiscuous mode [ 77.076641][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.087596][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.096905][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.105657][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.121764][ T4399] device veth0_macvtap entered promiscuous mode [ 77.125853][ T4411] Bluetooth: hci0: command 0x0409 tx timeout [ 77.146696][ T4399] device veth1_macvtap entered promiscuous mode [ 77.179651][ T4399] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.204027][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.224651][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.236153][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.250186][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.262372][ T4399] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.274098][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.282758][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.305682][ T4399] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.324952][ T4399] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.344482][ T4399] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.353216][ T4399] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.473439][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.481402][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.524734][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.539158][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.553621][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.574182][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.708216][ T4505] [ 77.710597][ T4505] ====================================================== [ 77.717628][ T4505] WARNING: possible circular locking dependency detected [ 77.724668][ T4505] syzkaller #0 Not tainted [ 77.729099][ T4505] ------------------------------------------------------ [ 77.736129][ T4505] syz.0.17/4505 is trying to acquire lock: [ 77.741959][ T4505] ffff88807e3fcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 77.753134][ T4505] [ 77.753134][ T4505] but task is already holding lock: [ 77.760516][ T4505] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 77.770209][ T4505] [ 77.770209][ T4505] which lock already depends on the new lock. [ 77.770209][ T4505] [ 77.780624][ T4505] [ 77.780624][ T4505] the existing dependency chain (in reverse order) is: [ 77.789655][ T4505] [ 77.789655][ T4505] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 77.797685][ T4505] __mutex_lock_common+0x1e3/0x2400 [ 77.803439][ T4505] mutex_lock_nested+0x17/0x20 [ 77.808775][ T4505] rfkill_register+0x33/0x980 [ 77.814000][ T4505] hci_register_dev+0x452/0x970 [ 77.819403][ T4505] vhci_create_device+0x32c/0x5c0 [ 77.824972][ T4505] vhci_write+0x391/0x450 [ 77.829842][ T4505] vfs_write+0x745/0xd60 [ 77.834621][ T4505] ksys_write+0x152/0x260 [ 77.839492][ T4505] do_syscall_64+0x4c/0xa0 [ 77.844462][ T4505] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.850907][ T4505] [ 77.850907][ T4505] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 77.858742][ T4505] __mutex_lock_common+0x1e3/0x2400 [ 77.864481][ T4505] mutex_lock_nested+0x17/0x20 [ 77.869797][ T4505] vhci_send_frame+0x88/0x100 [ 77.875041][ T4505] hci_send_frame+0x1a9/0x2e0 [ 77.880265][ T4505] hci_tx_work+0x9f9/0x1710 [ 77.885311][ T4505] process_one_work+0x85f/0x1010 [ 77.890796][ T4505] worker_thread+0xaa6/0x1290 [ 77.896017][ T4505] kthread+0x436/0x520 [ 77.900637][ T4505] ret_from_fork+0x1f/0x30 [ 77.905595][ T4505] [ 77.905595][ T4505] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 77.914842][ T4505] __flush_work+0x116/0x210 [ 77.919891][ T4505] hci_dev_do_close+0x1e7/0x1030 [ 77.925379][ T4505] hci_unregister_dev+0x2d7/0x580 [ 77.930953][ T4505] vhci_release+0x73/0xc0 [ 77.935852][ T4505] __fput+0x234/0x930 [ 77.940373][ T4505] task_work_run+0x125/0x1a0 [ 77.945522][ T4505] do_exit+0x626/0x20c0 [ 77.950226][ T4505] do_group_exit+0x12e/0x300 [ 77.955369][ T4505] get_signal+0x6d6/0x12d0 [ 77.960329][ T4505] arch_do_signal_or_restart+0xe7/0x12c0 [ 77.966504][ T4505] exit_to_user_mode_loop+0x9e/0x130 [ 77.972343][ T4505] exit_to_user_mode_prepare+0xee/0x180 [ 77.978427][ T4505] syscall_exit_to_user_mode+0x16/0x40 [ 77.984436][ T4505] do_syscall_64+0x58/0xa0 [ 77.989400][ T4505] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.995844][ T4505] [ 77.995844][ T4505] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 78.003531][ T4505] __mutex_lock_common+0x1e3/0x2400 [ 78.009279][ T4505] mutex_lock_nested+0x17/0x20 [ 78.014591][ T4505] bg_scan_update+0x44/0x3b0 [ 78.019727][ T4505] process_one_work+0x85f/0x1010 [ 78.025202][ T4505] worker_thread+0xaa6/0x1290 [ 78.030424][ T4505] kthread+0x436/0x520 [ 78.035041][ T4505] ret_from_fork+0x1f/0x30 [ 78.040005][ T4505] [ 78.040005][ T4505] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 78.049835][ T4505] __lock_acquire+0x2c42/0x7d10 [ 78.055233][ T4505] lock_acquire+0x19e/0x400 [ 78.060394][ T4505] __flush_work+0x116/0x210 [ 78.065445][ T4505] __cancel_work_timer+0x3f4/0x560 [ 78.071091][ T4505] hci_request_cancel_all+0xcc/0x300 [ 78.076935][ T4505] hci_dev_do_close+0x4e/0x1030 [ 78.082345][ T4505] hci_rfkill_set_block+0x10a/0x190 [ 78.088089][ T4505] rfkill_set_block+0x1c9/0x3d0 [ 78.093495][ T4505] rfkill_fop_write+0x452/0x560 [ 78.098891][ T4505] vfs_write+0x30b/0xd60 [ 78.103677][ T4505] ksys_write+0x152/0x260 [ 78.108546][ T4505] do_syscall_64+0x4c/0xa0 [ 78.113521][ T4505] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.119965][ T4505] [ 78.119965][ T4505] other info that might help us debug this: [ 78.119965][ T4505] [ 78.130219][ T4505] Chain exists of: [ 78.130219][ T4505] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 78.130219][ T4505] [ 78.145965][ T4505] Possible unsafe locking scenario: [ 78.145965][ T4505] [ 78.153431][ T4505] CPU0 CPU1 [ 78.158820][ T4505] ---- ---- [ 78.164198][ T4505] lock(rfkill_global_mutex); [ 78.169005][ T4505] lock(&data->open_mutex); [ 78.176127][ T4505] lock(rfkill_global_mutex); [ 78.183449][ T4505] lock((work_completion)(&hdev->bg_scan_update)); [ 78.190060][ T4505] [ 78.190060][ T4505] *** DEADLOCK *** [ 78.190060][ T4505] [ 78.198211][ T4505] 1 lock held by syz.0.17/4505: [ 78.203076][ T4505] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 78.213202][ T4505] [ 78.213202][ T4505] stack backtrace: [ 78.219131][ T4505] CPU: 0 PID: 4505 Comm: syz.0.17 Not tainted syzkaller #0 [ 78.226349][ T4505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 78.236439][ T4505] Call Trace: [ 78.239733][ T4505] [ 78.242681][ T4505] dump_stack_lvl+0x188/0x250 [ 78.247390][ T4505] ? load_image+0x400/0x400 [ 78.251946][ T4505] ? show_regs_print_info+0x20/0x20 [ 78.257173][ T4505] ? print_circular_bug+0x12b/0x1a0 [ 78.262395][ T4505] check_noncircular+0x296/0x330 [ 78.267361][ T4505] ? look_up_lock_class+0x71/0x110 [ 78.272524][ T4505] ? add_chain_block+0x940/0x940 [ 78.277483][ T4505] ? lockdep_lock+0xf1/0x1f0 [ 78.282112][ T4505] ? __lock_acquire+0x12e8/0x7d10 [ 78.287171][ T4505] ? mark_lock+0x94/0x320 [ 78.291522][ T4505] __lock_acquire+0x2c42/0x7d10 [ 78.296403][ T4505] ? verify_lock_unused+0x140/0x140 [ 78.301627][ T4505] ? mark_lock+0x94/0x320 [ 78.306103][ T4505] lock_acquire+0x19e/0x400 [ 78.310631][ T4505] ? __flush_work+0xfa/0x210 [ 78.315256][ T4505] ? __lock_acquire+0x7d10/0x7d10 [ 78.320313][ T4505] ? read_lock_is_recursive+0x10/0x10 [ 78.325719][ T4505] ? start_flush_work+0x776/0x820 [ 78.330872][ T4505] __flush_work+0x116/0x210 [ 78.335401][ T4505] ? __flush_work+0xfa/0x210 [ 78.340038][ T4505] ? flush_work+0x20/0x20 [ 78.344390][ T4505] ? try_to_grab_pending+0xfa/0x7f0 [ 78.349619][ T4505] ? mark_lock+0x94/0x320 [ 78.353986][ T4505] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 78.360012][ T4505] ? lock_chain_count+0x20/0x20 [ 78.364889][ T4505] ? mark_lock+0x94/0x320 [ 78.369243][ T4505] ? __cancel_work_timer+0x36a/0x560 [ 78.374561][ T4505] __cancel_work_timer+0x3f4/0x560 [ 78.379703][ T4505] ? cancel_work_sync+0x20/0x20 [ 78.384586][ T4505] ? __cancel_work+0x1f9/0x2e0 [ 78.389378][ T4505] ? lockdep_hardirqs_on+0x94/0x140 [ 78.394602][ T4505] ? __cancel_work+0x27b/0x2e0 [ 78.399396][ T4505] ? cancel_work+0x20/0x20 [ 78.403845][ T4505] ? lock_chain_count+0x20/0x20 [ 78.408729][ T4505] hci_request_cancel_all+0xcc/0x300 [ 78.414054][ T4505] hci_dev_do_close+0x4e/0x1030 [ 78.418933][ T4505] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 78.424881][ T4505] ? _raw_spin_unlock+0x40/0x40 [ 78.429759][ T4505] hci_rfkill_set_block+0x10a/0x190 [ 78.435001][ T4505] ? rcu_lock_release+0x20/0x20 [ 78.439875][ T4505] rfkill_set_block+0x1c9/0x3d0 [ 78.444774][ T4505] rfkill_fop_write+0x452/0x560 [ 78.449658][ T4505] ? rfkill_fop_read+0x520/0x520 [ 78.454619][ T4505] ? common_file_perm+0xc0/0x1c0 [ 78.459596][ T4505] ? fsnotify_perm+0x5d/0x560 [ 78.464301][ T4505] ? security_file_permission+0x75/0xa0 [ 78.469876][ T4505] ? rfkill_fop_read+0x520/0x520 [ 78.474859][ T4505] vfs_write+0x30b/0xd60 [ 78.479228][ T4505] ? file_end_write+0x250/0x250 [ 78.484101][ T4505] ? __context_tracking_exit+0x4c/0x80 [ 78.489596][ T4505] ? __lock_acquire+0x7d10/0x7d10 [ 78.494652][ T4505] ? __fdget_pos+0x1e2/0x370 [ 78.499258][ T4505] ksys_write+0x152/0x260 [ 78.503614][ T4505] ? __ia32_sys_read+0x80/0x80 [ 78.508501][ T4505] ? lockdep_hardirqs_on+0x94/0x140 [ 78.513729][ T4505] do_syscall_64+0x4c/0xa0 [ 78.518170][ T4505] ? clear_bhb_loop+0x30/0x80 [ 78.522867][ T4505] ? clear_bhb_loop+0x30/0x80 [ 78.527572][ T4505] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.533507][ T4505] RIP: 0033:0x7fa38a4dae59 [ 78.537946][ T4505] 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 [ 78.557579][ T4505] RSP: 002b:00007fff11cac2c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.566167][ T4505] RAX: ffffffffffffffda RBX: 00007fa38a753fa0 RCX: 00007fa38a4dae59 [ 78.574158][ T4505] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 78.582163][ T4505] RBP: 00007fa38a570d6f R08: 0000000000000000 R09: 0000000000000000 [ 78.590158][ T4505] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.598152][ T4505] R13: 00007fa38a753fac R14: 00007fa38a753fa0 R15: 00007fa38a753fa0 [ 78.606174][ T4505]