Warning: Permanently added '10.128.0.5' (ED25519) to the list of known hosts. 2025/12/25 02:18:45 parsed 1 programs [ 67.813370][ T4187] cgroup: Unknown subsys name 'net' [ 67.924420][ T4187] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.405678][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.368071][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.375022][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.161910][ T4222] chnl_net:caif_netlink_parms(): no params data found [ 72.230658][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.238502][ T4222] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.248363][ T4222] device bridge_slave_0 entered promiscuous mode [ 72.258617][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.267116][ T4222] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.275338][ T4222] device bridge_slave_1 entered promiscuous mode [ 72.306086][ T4222] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.319149][ T4222] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.350731][ T4222] team0: Port device team_slave_0 added [ 72.359372][ T4222] team0: Port device team_slave_1 added [ 72.393934][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.400926][ T4222] 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. [ 72.427009][ T4222] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.440421][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.447474][ T4222] 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. [ 72.473443][ T4222] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.515874][ T4222] device hsr_slave_0 entered promiscuous mode [ 72.522796][ T4222] device hsr_slave_1 entered promiscuous mode [ 72.673629][ T4222] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.688335][ T4222] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.699511][ T4222] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.711529][ T4222] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.746011][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.753288][ T4222] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.761620][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.768777][ T4222] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.830512][ T4222] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.847994][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.860159][ T165] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.869658][ T165] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.878562][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.893622][ T4222] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.908269][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.918434][ T165] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.925566][ T165] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.943625][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.952171][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.959303][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.986950][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.998660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.008068][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.017396][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.026822][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.038749][ T4222] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.149629][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.159610][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.175753][ T4222] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.205533][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.227952][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.256389][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.270387][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.284376][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.292219][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.311331][ T4222] device veth0_vlan entered promiscuous mode [ 73.327903][ T4222] device veth1_vlan entered promiscuous mode [ 73.369714][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.378409][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.387024][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.395644][ T165] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.407710][ T4222] device veth0_macvtap entered promiscuous mode [ 73.417985][ T4222] device veth1_macvtap entered promiscuous mode [ 73.434124][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.442159][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.451334][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.459472][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.468369][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.480993][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.489294][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.498588][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.511065][ T4222] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.521306][ T4222] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.531820][ T4222] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.541783][ T4222] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.047061][ T1272] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.060605][ T1272] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.086680][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.101412][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.110799][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.132965][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/12/25 02:18:55 executed programs: 0 [ 75.439234][ T4288] chnl_net:caif_netlink_parms(): no params data found [ 75.499128][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.506460][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.514733][ T4288] device bridge_slave_0 entered promiscuous mode [ 75.525214][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.532405][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.541271][ T4288] device bridge_slave_1 entered promiscuous mode [ 75.565498][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.578109][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.608074][ T4288] team0: Port device team_slave_0 added [ 75.616163][ T4288] team0: Port device team_slave_1 added [ 75.641910][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.649085][ T4288] 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. [ 75.675345][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.690046][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.697211][ T4288] 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. [ 75.723521][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.759893][ T4288] device hsr_slave_0 entered promiscuous mode [ 75.767570][ T4288] device hsr_slave_1 entered promiscuous mode [ 75.775140][ T4288] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.783248][ T4288] Cannot create hsr debugfs directory [ 75.866379][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.374736][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 78.531175][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.589069][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.641490][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.453966][ T4319] Bluetooth: hci0: command 0x041b tx timeout [ 79.537160][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.547125][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.557366][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.569277][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.668270][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.681639][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.689745][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.700682][ T4288] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.732407][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.741241][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.750417][ T1272] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.757582][ T1272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.783366][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.791842][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.800730][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.810534][ T1272] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.817686][ T1272] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.826818][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.861942][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.871954][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.882453][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.891409][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.900260][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.909301][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.943421][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.952170][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.963050][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.972010][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.983067][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.119381][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.127798][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.141061][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.177977][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.188350][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.226270][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.235969][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.246158][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.256708][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.265993][ T4288] device veth0_vlan entered promiscuous mode [ 80.279486][ T4288] device veth1_vlan entered promiscuous mode [ 80.318950][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.327287][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.337378][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.346497][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.359157][ T4288] device veth0_macvtap entered promiscuous mode [ 80.374697][ T4288] device veth1_macvtap entered promiscuous mode [ 80.395967][ T9] device hsr_slave_0 left promiscuous mode [ 80.402395][ T9] device hsr_slave_1 left promiscuous mode [ 80.409491][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.417535][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.427311][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.435360][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.443046][ T9] device bridge_slave_1 left promiscuous mode [ 80.450425][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.466209][ T9] device bridge_slave_0 left promiscuous mode [ 80.472451][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.491485][ T9] device veth1_macvtap left promiscuous mode [ 80.500847][ T9] device veth0_macvtap left promiscuous mode [ 80.507128][ T9] device veth1_vlan left promiscuous mode [ 80.513166][ T9] device veth0_vlan left promiscuous mode [ 80.692645][ T9] team0 (unregistering): Port device team_slave_1 removed [ 80.707385][ T9] team0 (unregistering): Port device team_slave_0 removed [ 80.720150][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.736227][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.792804][ T9] bond0 (unregistering): Released all slaves [ 80.861053][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.875003][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.883051][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.892534][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.901563][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.914721][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.926750][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.935709][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.947577][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.956669][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.966327][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.975102][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.048952][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.084816][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.093107][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.094746][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.104523][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.120066][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.254457][ T4355] [ 81.256847][ T4355] ====================================================== [ 81.263886][ T4355] WARNING: possible circular locking dependency detected [ 81.270940][ T4355] syzkaller #0 Not tainted [ 81.275380][ T4355] ------------------------------------------------------ [ 81.282529][ T4355] syz.0.17/4355 is trying to acquire lock: [ 81.288367][ T4355] ffff888077940c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 81.299558][ T4355] [ 81.299558][ T4355] but task is already holding lock: [ 81.307055][ T4355] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 81.316849][ T4355] [ 81.316849][ T4355] which lock already depends on the new lock. [ 81.316849][ T4355] [ 81.327278][ T4355] [ 81.327278][ T4355] the existing dependency chain (in reverse order) is: [ 81.336315][ T4355] [ 81.336315][ T4355] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.344340][ T4355] __mutex_lock_common+0x1eb/0x2390 [ 81.350092][ T4355] mutex_lock_nested+0x17/0x20 [ 81.355418][ T4355] rfkill_register+0x33/0x8a0 [ 81.360647][ T4355] hci_register_dev+0x452/0x970 [ 81.366054][ T4355] vhci_create_device+0x32c/0x5c0 [ 81.371723][ T4355] vhci_write+0x391/0x450 [ 81.376606][ T4355] vfs_write+0x712/0xd00 [ 81.381402][ T4355] ksys_write+0x14d/0x250 [ 81.386285][ T4355] do_syscall_64+0x4c/0xa0 [ 81.391255][ T4355] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.397700][ T4355] [ 81.397700][ T4355] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.405552][ T4355] __mutex_lock_common+0x1eb/0x2390 [ 81.411312][ T4355] mutex_lock_nested+0x17/0x20 [ 81.416633][ T4355] vhci_send_frame+0x88/0x100 [ 81.421858][ T4355] hci_send_frame+0x1a9/0x2e0 [ 81.427079][ T4355] hci_tx_work+0x9f9/0x1710 [ 81.432143][ T4355] process_one_work+0x863/0x1000 [ 81.437714][ T4355] worker_thread+0xaa8/0x12a0 [ 81.442940][ T4355] kthread+0x436/0x520 [ 81.447566][ T4355] ret_from_fork+0x1f/0x30 [ 81.452633][ T4355] [ 81.452633][ T4355] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.461871][ T4355] __flush_work+0xdd/0x1b0 [ 81.466958][ T4355] hci_dev_do_close+0x1e7/0x1030 [ 81.472456][ T4355] hci_unregister_dev+0x2d7/0x580 [ 81.478027][ T4355] vhci_release+0x73/0xc0 [ 81.482906][ T4355] __fput+0x234/0x930 [ 81.487438][ T4355] task_work_run+0x125/0x1a0 [ 81.492613][ T4355] do_exit+0x61e/0x20a0 [ 81.497332][ T4355] do_group_exit+0x12e/0x300 [ 81.502486][ T4355] get_signal+0x6ca/0x12c0 [ 81.507462][ T4355] arch_do_signal_or_restart+0xc1/0x1300 [ 81.513871][ T4355] exit_to_user_mode_loop+0x9e/0x130 [ 81.519850][ T4355] exit_to_user_mode_prepare+0xee/0x180 [ 81.525961][ T4355] syscall_exit_to_user_mode+0x16/0x40 [ 81.531980][ T4355] do_syscall_64+0x58/0xa0 [ 81.536946][ T4355] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.543445][ T4355] [ 81.543445][ T4355] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.551122][ T4355] __mutex_lock_common+0x1eb/0x2390 [ 81.556885][ T4355] mutex_lock_nested+0x17/0x20 [ 81.562213][ T4355] bg_scan_update+0x44/0x3b0 [ 81.567356][ T4355] process_one_work+0x863/0x1000 [ 81.572944][ T4355] worker_thread+0xaa8/0x12a0 [ 81.578190][ T4355] kthread+0x436/0x520 [ 81.582810][ T4355] ret_from_fork+0x1f/0x30 [ 81.587781][ T4355] [ 81.587781][ T4355] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.597630][ T4355] __lock_acquire+0x2c33/0x7c60 [ 81.603042][ T4355] lock_acquire+0x197/0x3f0 [ 81.608096][ T4355] __flush_work+0xdd/0x1b0 [ 81.613068][ T4355] __cancel_work_timer+0x3ac/0x520 [ 81.618732][ T4355] hci_request_cancel_all+0xcc/0x300 [ 81.624610][ T4355] hci_dev_do_close+0x4e/0x1030 [ 81.630015][ T4355] hci_rfkill_set_block+0x10a/0x190 [ 81.635770][ T4355] rfkill_set_block+0x1c6/0x420 [ 81.641171][ T4355] rfkill_fop_write+0x458/0x560 [ 81.646574][ T4355] vfs_write+0x300/0xd00 [ 81.651372][ T4355] ksys_write+0x14d/0x250 [ 81.656258][ T4355] do_syscall_64+0x4c/0xa0 [ 81.661227][ T4355] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.667671][ T4355] [ 81.667671][ T4355] other info that might help us debug this: [ 81.667671][ T4355] [ 81.677918][ T4355] Chain exists of: [ 81.677918][ T4355] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 81.677918][ T4355] [ 81.693681][ T4355] Possible unsafe locking scenario: [ 81.693681][ T4355] [ 81.701157][ T4355] CPU0 CPU1 [ 81.706730][ T4355] ---- ---- [ 81.712140][ T4355] lock(rfkill_global_mutex); [ 81.716939][ T4355] lock(&data->open_mutex); [ 81.724078][ T4355] lock(rfkill_global_mutex); [ 81.731393][ T4355] lock((work_completion)(&hdev->bg_scan_update)); [ 81.738007][ T4355] [ 81.738007][ T4355] *** DEADLOCK *** [ 81.738007][ T4355] [ 81.746261][ T4355] 1 lock held by syz.0.17/4355: [ 81.751142][ T4355] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 81.761371][ T4355] [ 81.761371][ T4355] stack backtrace: [ 81.767444][ T4355] CPU: 1 PID: 4355 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.774902][ T4355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 81.785257][ T4355] Call Trace: [ 81.788562][ T4355] [ 81.791512][ T4355] dump_stack_lvl+0x168/0x230 [ 81.796218][ T4355] ? load_image+0x3b0/0x3b0 [ 81.800754][ T4355] ? show_regs_print_info+0x20/0x20 [ 81.805998][ T4355] ? print_circular_bug+0x12b/0x1a0 [ 81.811224][ T4355] check_noncircular+0x274/0x310 [ 81.816186][ T4355] ? add_chain_block+0x940/0x940 [ 81.821145][ T4355] ? lockdep_lock+0xdc/0x1e0 [ 81.825755][ T4355] ? __lock_acquire+0x12d9/0x7c60 [ 81.830806][ T4355] ? lockdep_lock+0x1e0/0x1e0 [ 81.835503][ T4355] ? mark_lock+0x94/0x320 [ 81.839848][ T4355] ? _find_first_zero_bit+0xce/0xf0 [ 81.845070][ T4355] __lock_acquire+0x2c33/0x7c60 [ 81.849947][ T4355] ? verify_lock_unused+0x140/0x140 [ 81.855164][ T4355] ? verify_lock_unused+0x140/0x140 [ 81.860395][ T4355] lock_acquire+0x197/0x3f0 [ 81.864910][ T4355] ? __flush_work+0xc1/0x1b0 [ 81.869517][ T4355] ? __lock_acquire+0x7c60/0x7c60 [ 81.874557][ T4355] ? read_lock_is_recursive+0x10/0x10 [ 81.879978][ T4355] ? start_flush_work+0x776/0x820 [ 81.885016][ T4355] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.890922][ T4355] ? _raw_spin_unlock+0x40/0x40 [ 81.895791][ T4355] __flush_work+0xdd/0x1b0 [ 81.900215][ T4355] ? __flush_work+0xc1/0x1b0 [ 81.904813][ T4355] ? flush_work+0x20/0x20 [ 81.909154][ T4355] ? try_to_grab_pending+0xf3/0x7e0 [ 81.914361][ T4355] ? lockdep_hardirqs_off+0x70/0x100 [ 81.919666][ T4355] ? mark_lock+0x94/0x320 [ 81.924013][ T4355] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 81.930011][ T4355] ? lock_chain_count+0x20/0x20 [ 81.934876][ T4355] ? mark_lock+0x94/0x320 [ 81.939225][ T4355] ? __cancel_work_timer+0x331/0x520 [ 81.944618][ T4355] __cancel_work_timer+0x3ac/0x520 [ 81.949754][ T4355] ? cancel_work_sync+0x20/0x20 [ 81.954617][ T4355] ? __cancel_work+0x1f4/0x2d0 [ 81.959396][ T4355] ? lockdep_hardirqs_on+0x94/0x140 [ 81.964609][ T4355] ? __cancel_work+0x26f/0x2d0 [ 81.969821][ T4355] ? cancel_work+0x20/0x20 [ 81.974257][ T4355] ? lock_chain_count+0x20/0x20 [ 81.979174][ T4355] hci_request_cancel_all+0xcc/0x300 [ 81.984475][ T4355] hci_dev_do_close+0x4e/0x1030 [ 81.989352][ T4355] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.995274][ T4355] ? _raw_spin_unlock+0x40/0x40 [ 82.000242][ T4355] hci_rfkill_set_block+0x10a/0x190 [ 82.005452][ T4355] ? rcu_lock_release+0x20/0x20 [ 82.010322][ T4355] rfkill_set_block+0x1c6/0x420 [ 82.015277][ T4355] rfkill_fop_write+0x458/0x560 [ 82.020140][ T4355] ? verify_lock_unused+0x140/0x140 [ 82.025360][ T4355] ? rfkill_fop_read+0x4b0/0x4b0 [ 82.030321][ T4355] ? common_file_perm+0xc0/0x1c0 [ 82.035274][ T4355] ? fsnotify_perm+0x5d/0x560 [ 82.039967][ T4355] ? security_file_permission+0x75/0xa0 [ 82.045575][ T4355] ? rfkill_fop_read+0x4b0/0x4b0 [ 82.050536][ T4355] vfs_write+0x300/0xd00 [ 82.054789][ T4355] ? file_end_write+0x250/0x250 [ 82.059652][ T4355] ? __context_tracking_exit+0x4c/0x80 [ 82.065249][ T4355] ? __lock_acquire+0x7c60/0x7c60 [ 82.070302][ T4355] ? __fdget_pos+0x1e2/0x370 [ 82.074916][ T4355] ksys_write+0x14d/0x250 [ 82.079271][ T4355] ? __ia32_sys_read+0x80/0x80 [ 82.084061][ T4355] ? lockdep_hardirqs_on+0x94/0x140 [ 82.089279][ T4355] do_syscall_64+0x4c/0xa0 [ 82.093744][ T4355] ? clear_bhb_loop+0x30/0x80 [ 82.098443][ T4355] ? clear_bhb_loop+0x30/0x80 [ 82.103137][ T4355] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.109143][ T4355] RIP: 0033:0x7f083c971749 [ 82.113573][ T4355] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 82.133239][ T4355] RSP: 002b:00007ffdd66d5bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.141752][ T4355] RAX: ffffffffffffffda RBX: 00007f083cbc7fa0 RCX: 00007f083c971749 [ 82.149744][ T4355] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 82.157728][ T4355] RBP: 00007f083c9f5f91 R08: 0000000000000000 R09: 0000000000000000 [ 82.165806][ T4355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.173791][ T4355] R13: 00007f083cbc7fa0 R14: 00007f083cbc7fa0 R15: 0000000000000003 [ 82.181783][ T4355] [ 82.204509][ T4237] Bluetooth: hci0: command 0x040f tx timeout