Warning: Permanently added '10.128.1.98' (ED25519) to the list of known hosts. 2026/07/14 23:29:13 parsed 1 programs 2026/07/14 23:29:13 serving rpc on tcp://44083 [ 67.464565][ T4195] cgroup: Unknown subsys name 'net' [ 67.568917][ T4195] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.118388][ T4195] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.155335][ T4218] chnl_net:caif_netlink_parms(): no params data found [ 71.206751][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.215702][ T4218] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.224571][ T4218] device bridge_slave_0 entered promiscuous mode [ 71.234475][ T1427] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.240202][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.241727][ T1427] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.252548][ T4218] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.263618][ T4218] device bridge_slave_1 entered promiscuous mode [ 71.293852][ T4218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.305552][ T4218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.336732][ T4218] team0: Port device team_slave_0 added [ 71.345050][ T4218] team0: Port device team_slave_1 added [ 71.370743][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.377739][ T4218] 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. [ 71.406986][ T4218] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.422220][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.429630][ T4218] 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. [ 71.457442][ T4218] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.499993][ T4218] device hsr_slave_0 entered promiscuous mode [ 71.507483][ T4218] device hsr_slave_1 entered promiscuous mode [ 71.671717][ T4218] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.684681][ T4218] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.696901][ T4218] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.707381][ T4218] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.742644][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.750470][ T4218] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.758739][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.765857][ T4218] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.837091][ T4218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.856260][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.870247][ T1167] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.879857][ T1167] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.890421][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.906486][ T4218] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.921219][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.929923][ T1167] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.937040][ T1167] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.961147][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.972819][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.980006][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.001456][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.011286][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.032731][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.041877][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.050926][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.063836][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.220110][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.227683][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.244202][ T4218] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.270457][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.281029][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.306199][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.316485][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.329325][ T4218] device veth0_vlan entered promiscuous mode [ 72.341403][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.350182][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.361693][ T4218] device veth1_vlan entered promiscuous mode [ 72.390824][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.402838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.411519][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.420399][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.432413][ T4218] device veth0_macvtap entered promiscuous mode [ 72.444887][ T4218] device veth1_macvtap entered promiscuous mode [ 72.464560][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.474726][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.483609][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.492136][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.502315][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.519198][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.526560][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.538966][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.552809][ T4218] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.562273][ T4218] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.572710][ T4218] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.583151][ T4218] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.909821][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.287700][ T1167] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.297352][ T1167] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.316213][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.329411][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.337269][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.345960][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/14 23:29:23 executed programs: 0 [ 74.855332][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 74.906462][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.913726][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.921954][ T4290] device bridge_slave_0 entered promiscuous mode [ 74.930858][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.938352][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.946277][ T4290] device bridge_slave_1 entered promiscuous mode [ 74.968609][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.979979][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.002746][ T4290] team0: Port device team_slave_0 added [ 75.011745][ T4290] team0: Port device team_slave_1 added [ 75.028703][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.035687][ T4290] 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. [ 75.061977][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.074850][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.082308][ T4290] 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. [ 75.108543][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.129254][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.158027][ T4290] device hsr_slave_0 entered promiscuous mode [ 75.165180][ T4290] device hsr_slave_1 entered promiscuous mode [ 75.172130][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.180376][ T4290] Cannot create hsr debugfs directory [ 76.818716][ T4229] Bluetooth: hci0: command 0x0409 tx timeout [ 77.664613][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.708075][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.485670][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.500413][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.514608][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.524585][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.593620][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.617192][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.625222][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.637290][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.647786][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.657672][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.666941][ T4281] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.674098][ T4281] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.682377][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.693426][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.702357][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.711195][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.718360][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.740980][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.753377][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.766445][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.777462][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.790435][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.802338][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.811167][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.825188][ T154] device hsr_slave_0 left promiscuous mode [ 78.832243][ T154] device hsr_slave_1 left promiscuous mode [ 78.839447][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.847289][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.857164][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.864671][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.872719][ T154] device bridge_slave_1 left promiscuous mode [ 78.879896][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.894184][ T154] device bridge_slave_0 left promiscuous mode [ 78.900643][ T4226] Bluetooth: hci0: command 0x041b tx timeout [ 78.906921][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.927846][ T154] device veth1_macvtap left promiscuous mode [ 78.934402][ T154] device veth0_macvtap left promiscuous mode [ 78.940599][ T154] device veth1_vlan left promiscuous mode [ 78.946617][ T154] device veth0_vlan left promiscuous mode [ 79.113397][ T154] team0 (unregistering): Port device team_slave_1 removed [ 79.127727][ T154] team0 (unregistering): Port device team_slave_0 removed [ 79.142332][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.156186][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.214970][ T154] bond0 (unregistering): Released all slaves [ 79.281985][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.293005][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.303117][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.311965][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.324893][ T4290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.441444][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.449658][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.463944][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.499698][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.509040][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.530580][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.539468][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.551295][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.559669][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.569519][ T4290] device veth0_vlan entered promiscuous mode [ 79.583123][ T4290] device veth1_vlan entered promiscuous mode [ 79.603567][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.612009][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.620952][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.631874][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.642687][ T4290] device veth0_macvtap entered promiscuous mode [ 79.654852][ T4290] device veth1_macvtap entered promiscuous mode [ 79.677221][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.690229][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.697614][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.707575][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.719144][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.730110][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.742303][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.751435][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.760486][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.769750][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.841017][ T4281] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.855413][ T4281] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.866533][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.888873][ T4281] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.897360][ T4281] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.906250][ T1167] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.094716][ T4335] [ 80.097118][ T4335] ====================================================== [ 80.104175][ T4335] WARNING: possible circular locking dependency detected [ 80.111233][ T4335] syzkaller #0 Not tainted [ 80.115683][ T4335] ------------------------------------------------------ [ 80.122724][ T4335] syz.0.17/4335 is trying to acquire lock: [ 80.128551][ T4335] ffff88806e2b5028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 80.139682][ T4335] [ 80.139682][ T4335] but task is already holding lock: [ 80.147067][ T4335] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 80.156771][ T4335] [ 80.156771][ T4335] which lock already depends on the new lock. [ 80.156771][ T4335] [ 80.167196][ T4335] [ 80.167196][ T4335] the existing dependency chain (in reverse order) is: [ 80.176232][ T4335] [ 80.176232][ T4335] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.184271][ T4335] __mutex_lock_common+0x1e5/0x2400 [ 80.190034][ T4335] mutex_lock_nested+0x17/0x20 [ 80.195353][ T4335] rfkill_register+0x2f/0x970 [ 80.200585][ T4335] hci_register_dev+0x459/0x980 [ 80.205989][ T4335] vhci_create_device+0x32e/0x5c0 [ 80.211569][ T4335] vhci_write+0x389/0x440 [ 80.216446][ T4335] vfs_write+0x748/0xd70 [ 80.221238][ T4335] ksys_write+0x153/0x260 [ 80.226114][ T4335] do_syscall_64+0x4c/0xa0 [ 80.231083][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.237530][ T4335] [ 80.237530][ T4335] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.245382][ T4335] __mutex_lock_common+0x1e5/0x2400 [ 80.251140][ T4335] mutex_lock_nested+0x17/0x20 [ 80.256461][ T4335] vhci_send_frame+0x88/0x100 [ 80.261696][ T4335] hci_send_frame+0x1a9/0x2e0 [ 80.266936][ T4335] hci_tx_work+0x9b5/0x16d0 [ 80.272179][ T4335] process_one_work+0x867/0xff0 [ 80.277592][ T4335] worker_thread+0xad7/0x12a0 [ 80.282817][ T4335] kthread+0x42e/0x520 [ 80.287432][ T4335] ret_from_fork+0x1f/0x30 [ 80.292401][ T4335] [ 80.292401][ T4335] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.301648][ T4335] __flush_work+0x116/0x210 [ 80.306711][ T4335] hci_dev_do_close+0x201/0x1020 [ 80.312198][ T4335] hci_unregister_dev+0x2eb/0x590 [ 80.317780][ T4335] vhci_release+0x73/0xc0 [ 80.322694][ T4335] __fput+0x212/0x8c0 [ 80.327235][ T4335] task_work_run+0x125/0x1a0 [ 80.332380][ T4335] do_exit+0x635/0x2110 [ 80.337087][ T4335] do_group_exit+0x12c/0x2f0 [ 80.342225][ T4335] get_signal+0x7eb/0x12e0 [ 80.347205][ T4335] arch_do_signal_or_restart+0xe6/0x12a0 [ 80.353429][ T4335] exit_to_user_mode_loop+0x9e/0x130 [ 80.359320][ T4335] exit_to_user_mode_prepare+0xee/0x180 [ 80.365422][ T4335] syscall_exit_to_user_mode+0x16/0x40 [ 80.371529][ T4335] do_syscall_64+0x58/0xa0 [ 80.376503][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.382956][ T4335] [ 80.382956][ T4335] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 80.390649][ T4335] __mutex_lock_common+0x1e5/0x2400 [ 80.396410][ T4335] mutex_lock_nested+0x17/0x20 [ 80.401730][ T4335] bg_scan_update+0x44/0x3b0 [ 80.406882][ T4335] process_one_work+0x867/0xff0 [ 80.412290][ T4335] worker_thread+0xad7/0x12a0 [ 80.417520][ T4335] kthread+0x42e/0x520 [ 80.422142][ T4335] ret_from_fork+0x1f/0x30 [ 80.427111][ T4335] [ 80.427111][ T4335] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 80.436962][ T4335] __lock_acquire+0x2c66/0x7b50 [ 80.442372][ T4335] lock_acquire+0x19e/0x400 [ 80.447430][ T4335] __flush_work+0x116/0x210 [ 80.452481][ T4335] __cancel_work_timer+0x3f4/0x560 [ 80.458142][ T4335] hci_request_cancel_all+0xcc/0x300 [ 80.463985][ T4335] hci_dev_do_close+0x4e/0x1020 [ 80.469387][ T4335] hci_rfkill_set_block+0x101/0x180 [ 80.475168][ T4335] rfkill_set_block+0x1c1/0x3c0 [ 80.480568][ T4335] rfkill_fop_write+0x453/0x560 [ 80.485970][ T4335] vfs_write+0x304/0xd70 [ 80.490755][ T4335] ksys_write+0x153/0x260 [ 80.495637][ T4335] do_syscall_64+0x4c/0xa0 [ 80.500605][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.507045][ T4335] [ 80.507045][ T4335] other info that might help us debug this: [ 80.507045][ T4335] [ 80.517295][ T4335] Chain exists of: [ 80.517295][ T4335] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 80.517295][ T4335] [ 80.533054][ T4335] Possible unsafe locking scenario: [ 80.533054][ T4335] [ 80.540525][ T4335] CPU0 CPU1 [ 80.545916][ T4335] ---- ---- [ 80.551302][ T4335] lock(rfkill_global_mutex); [ 80.556090][ T4335] lock(&data->open_mutex); [ 80.563225][ T4335] lock(rfkill_global_mutex); [ 80.570553][ T4335] lock((work_completion)(&hdev->bg_scan_update)); [ 80.577208][ T4335] [ 80.577208][ T4335] *** DEADLOCK *** [ 80.577208][ T4335] [ 80.585380][ T4335] 1 lock held by syz.0.17/4335: [ 80.590252][ T4335] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 80.600493][ T4335] [ 80.600493][ T4335] stack backtrace: [ 80.606545][ T4335] CPU: 0 PID: 4335 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.613768][ T4335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 80.624025][ T4335] Call Trace: [ 80.627348][ T4335] [ 80.630313][ T4335] dump_stack_lvl+0x188/0x250 [ 80.635036][ T4335] ? load_image+0x410/0x410 [ 80.639573][ T4335] ? show_regs_print_info+0x20/0x20 [ 80.644954][ T4335] ? print_circular_bug+0x12b/0x1a0 [ 80.650199][ T4335] check_noncircular+0x296/0x330 [ 80.655177][ T4335] ? look_up_lock_class+0x71/0x110 [ 80.660456][ T4335] ? add_chain_block+0x9b0/0x9b0 [ 80.665440][ T4335] ? lockdep_lock+0xf1/0x1f0 [ 80.670077][ T4335] ? __lock_acquire+0x1305/0x7b50 [ 80.675229][ T4335] ? mark_lock+0x94/0x320 [ 80.679587][ T4335] ? _find_first_zero_bit+0xd1/0xf0 [ 80.684813][ T4335] __lock_acquire+0x2c66/0x7b50 [ 80.689706][ T4335] ? verify_lock_unused+0x140/0x140 [ 80.694952][ T4335] ? verify_lock_unused+0x140/0x140 [ 80.700199][ T4335] lock_acquire+0x19e/0x400 [ 80.704740][ T4335] ? __flush_work+0xfa/0x210 [ 80.709352][ T4335] ? __lock_acquire+0x7b50/0x7b50 [ 80.714407][ T4335] ? read_lock_is_recursive+0x10/0x10 [ 80.719815][ T4335] ? start_flush_work+0x784/0x830 [ 80.724868][ T4335] __flush_work+0x116/0x210 [ 80.729403][ T4335] ? __flush_work+0xfa/0x210 [ 80.734024][ T4335] ? flush_work+0x20/0x20 [ 80.738378][ T4335] ? try_to_grab_pending+0xfb/0x820 [ 80.743605][ T4335] ? mark_lock+0x94/0x320 [ 80.747964][ T4335] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 80.753994][ T4335] ? lock_chain_count+0x20/0x20 [ 80.758871][ T4335] ? mark_lock+0x94/0x320 [ 80.763225][ T4335] ? __cancel_work_timer+0x36a/0x560 [ 80.768543][ T4335] __cancel_work_timer+0x3f4/0x560 [ 80.773719][ T4335] ? cancel_work_sync+0x20/0x20 [ 80.778610][ T4335] ? __cancel_work+0x1f9/0x2e0 [ 80.783431][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 80.788660][ T4335] ? __cancel_work+0x27b/0x2e0 [ 80.793462][ T4335] ? cancel_work+0x20/0x20 [ 80.797908][ T4335] hci_request_cancel_all+0xcc/0x300 [ 80.803229][ T4335] hci_dev_do_close+0x4e/0x1020 [ 80.808117][ T4335] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 80.814051][ T4335] ? _raw_spin_unlock+0x40/0x40 [ 80.818940][ T4335] hci_rfkill_set_block+0x101/0x180 [ 80.824318][ T4335] ? rcu_lock_release+0x20/0x20 [ 80.829215][ T4335] rfkill_set_block+0x1c1/0x3c0 [ 80.834114][ T4335] rfkill_fop_write+0x453/0x560 [ 80.839036][ T4335] ? rfkill_fop_read+0x560/0x560 [ 80.844015][ T4335] ? common_file_perm+0xf0/0x1c0 [ 80.848997][ T4335] ? fsnotify_perm+0x5d/0x560 [ 80.853744][ T4335] ? security_file_permission+0x75/0xa0 [ 80.859415][ T4335] ? rfkill_fop_read+0x560/0x560 [ 80.864391][ T4335] vfs_write+0x304/0xd70 [ 80.868758][ T4335] ? file_end_write+0x250/0x250 [ 80.873674][ T4335] ? __context_tracking_exit+0x4c/0x80 [ 80.879180][ T4335] ? __fdget_pos+0x1e2/0x370 [ 80.883809][ T4335] ksys_write+0x153/0x260 [ 80.888354][ T4335] ? __ia32_sys_read+0x80/0x80 [ 80.893155][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 80.898387][ T4335] do_syscall_64+0x4c/0xa0 [ 80.902837][ T4335] ? clear_bhb_loop+0x30/0x80 [ 80.907544][ T4335] ? clear_bhb_loop+0x30/0x80 [ 80.912256][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.918193][ T4335] RIP: 0033:0x7ff8ed9eae59 [ 80.922648][ T4335] 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 [ 80.942288][ T4335] RSP: 002b:00007ffc47856c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.950738][ T4335] RAX: ffffffffffffffda RBX: 00007ff8edc72fa0 RCX: 00007ff8ed9eae59 [ 80.958732][ T4335] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 80.966736][ T4335] RBP: 00007ff8eda80e6f R08: 0000000000000000 R09: 0000000000000000 [ 80.974736][ T4335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.982906][ T4335] R13: 00007ff8edc72fac R14: 00007ff8edc72fa0 R15: 00007ff8edc72fa0 [ 80.990934][ T4335] [ 80.997348][ T4308] Bluetooth: hci0: command 0x040f tx timeout