Warning: Permanently added '10.128.1.122' (ED25519) to the list of known hosts. 2026/07/15 00:08:30 parsed 1 programs 2026/07/15 00:08:30 serving rpc on tcp://36655 [ 73.856214][ T4198] cgroup: Unknown subsys name 'net' [ 73.992577][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 75.561734][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 77.560157][ T4226] chnl_net:caif_netlink_parms(): no params data found [ 77.614381][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.622472][ T4226] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.631027][ T4226] device bridge_slave_0 entered promiscuous mode [ 77.641129][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.648755][ T4226] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.657360][ T4226] device bridge_slave_1 entered promiscuous mode [ 77.684277][ T4226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.696844][ T4226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.724242][ T4226] team0: Port device team_slave_0 added [ 77.733156][ T4226] team0: Port device team_slave_1 added [ 77.754786][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.762490][ T4226] 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. [ 77.790352][ T4226] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.807737][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.814964][ T4226] 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. [ 77.842678][ T4226] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.887367][ T4226] device hsr_slave_0 entered promiscuous mode [ 77.897107][ T4226] device hsr_slave_1 entered promiscuous mode [ 78.053935][ T4226] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.067902][ T4226] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.080754][ T4226] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.091067][ T4226] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.121954][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.129244][ T4226] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.137390][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.144546][ T4226] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.218777][ T4226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.238697][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.253068][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.265037][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.280227][ T4226] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.294840][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.306021][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.313181][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.334240][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.344191][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.351656][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.377381][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.397841][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.411294][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.420960][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.431676][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.443416][ T4226] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.584888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.595591][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.615656][ T4226] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.638862][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.650785][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.674642][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.685601][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.698585][ T4226] device veth0_vlan entered promiscuous mode [ 78.708557][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.718624][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.733670][ T4226] device veth1_vlan entered promiscuous mode [ 78.758659][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.767927][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.777959][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.787511][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.799971][ T4226] device veth0_macvtap entered promiscuous mode [ 78.811165][ T4226] device veth1_macvtap entered promiscuous mode [ 78.829683][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.839417][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.850246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.859217][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.868919][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.884441][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.895058][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.904790][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.917988][ T4226] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.927484][ T4226] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.937661][ T4226] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.946608][ T4226] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.067587][ T4226] syz-executor (4226) used greatest stack depth: 21008 bytes left [ 79.407004][ T1241] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.898298][ T1241] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.597366][ T1241] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.639285][ T1241] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.709326][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.734716][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.759147][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.797655][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.806186][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.834459][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 86.012454][ T1241] device hsr_slave_0 left promiscuous mode [ 86.031747][ T1241] device hsr_slave_1 left promiscuous mode [ 86.044754][ T1241] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 86.062773][ T1241] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 86.092763][ T1241] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 86.100486][ T1241] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 86.123098][ T1241] device bridge_slave_1 left promiscuous mode [ 86.130434][ T1241] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.168848][ T1241] device bridge_slave_0 left promiscuous mode [ 86.186087][ T1241] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.212250][ T1241] device veth1_macvtap left promiscuous mode [ 86.218996][ T1241] device veth0_macvtap left promiscuous mode [ 86.231946][ T1241] device veth1_vlan left promiscuous mode [ 86.238031][ T1241] device veth0_vlan left promiscuous mode [ 86.428547][ T1241] team0 (unregistering): Port device team_slave_1 removed [ 86.441842][ T1241] team0 (unregistering): Port device team_slave_0 removed [ 86.457505][ T1241] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 86.474100][ T1241] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 86.532313][ T1241] bond0 (unregistering): Released all slaves 2026/07/15 00:08:46 executed programs: 0 [ 88.153358][ T4372] chnl_net:caif_netlink_parms(): no params data found [ 88.283474][ T4372] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.302857][ T4372] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.321641][ T4372] device bridge_slave_0 entered promiscuous mode [ 88.342723][ T4372] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.356344][ T4372] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.381880][ T4372] device bridge_slave_1 entered promiscuous mode [ 88.431347][ T4372] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.452075][ T4372] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.481999][ T4372] team0: Port device team_slave_0 added [ 88.490120][ T4372] team0: Port device team_slave_1 added [ 88.514870][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 88.522004][ T4372] 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. [ 88.549359][ T4372] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 88.570432][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 88.579577][ T4372] 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. [ 88.608993][ T4372] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 88.655765][ T4372] device hsr_slave_0 entered promiscuous mode [ 88.682656][ T4372] device hsr_slave_1 entered promiscuous mode [ 89.424586][ T4372] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 89.444501][ T4372] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.464911][ T4372] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.484471][ T4372] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.676042][ T4372] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.691081][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 89.719219][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.735573][ T4372] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.751300][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.773759][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.784283][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.791762][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.804980][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.815260][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.843985][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.851236][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.859988][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 89.882437][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 89.902968][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 89.913690][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 89.931227][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.942541][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 89.953637][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.964845][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 89.984577][ T4372] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 89.995393][ T4372] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 90.008736][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 90.025232][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 90.034689][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 90.045210][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 90.056675][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 90.077679][ T4215] Bluetooth: hci0: command 0x0409 tx timeout [ 90.204447][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 90.214239][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 90.228460][ T4372] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 90.256200][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 90.266225][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 90.288911][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 90.301383][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 90.311046][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 90.321865][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 90.333316][ T4372] device veth0_vlan entered promiscuous mode [ 90.350286][ T4372] device veth1_vlan entered promiscuous mode [ 90.376956][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 90.387537][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 90.397519][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 90.406851][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 90.419058][ T4372] device veth0_macvtap entered promiscuous mode [ 90.430691][ T4372] device veth1_macvtap entered promiscuous mode [ 90.451017][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.461345][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 90.471356][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 90.483191][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 90.496507][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 90.536636][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.547215][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 90.557445][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 90.571098][ T4372] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.580739][ T4372] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.589937][ T4372] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.599036][ T4372] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.747835][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.764099][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 90.806560][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 90.828955][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 90.837432][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 90.846537][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 91.068714][ T4477] [ 91.071228][ T4477] ====================================================== [ 91.078268][ T4477] WARNING: possible circular locking dependency detected [ 91.085453][ T4477] syzkaller #0 Not tainted [ 91.090117][ T4477] ------------------------------------------------------ [ 91.097165][ T4477] syz.0.17/4477 is trying to acquire lock: [ 91.103086][ T4477] ffff8880202a1028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 91.114286][ T4477] [ 91.114286][ T4477] but task is already holding lock: [ 91.121679][ T4477] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 91.131562][ T4477] [ 91.131562][ T4477] which lock already depends on the new lock. [ 91.131562][ T4477] [ 91.141998][ T4477] [ 91.141998][ T4477] the existing dependency chain (in reverse order) is: [ 91.151360][ T4477] [ 91.151360][ T4477] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 91.159390][ T4477] __mutex_lock_common+0x1e5/0x2400 [ 91.165256][ T4477] mutex_lock_nested+0x17/0x20 [ 91.170578][ T4477] rfkill_register+0x2f/0x970 [ 91.175814][ T4477] hci_register_dev+0x459/0x980 [ 91.181222][ T4477] vhci_create_device+0x32e/0x5c0 [ 91.186804][ T4477] vhci_write+0x389/0x440 [ 91.191810][ T4477] vfs_write+0x748/0xd70 [ 91.196620][ T4477] ksys_write+0x153/0x260 [ 91.201536][ T4477] do_syscall_64+0x4c/0xa0 [ 91.206507][ T4477] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.213083][ T4477] [ 91.213083][ T4477] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 91.221186][ T4477] __mutex_lock_common+0x1e5/0x2400 [ 91.227589][ T4477] mutex_lock_nested+0x17/0x20 [ 91.232934][ T4477] vhci_send_frame+0x88/0x100 [ 91.238270][ T4477] hci_send_frame+0x1a9/0x2e0 [ 91.243534][ T4477] hci_tx_work+0x9b5/0x16d0 [ 91.248882][ T4477] process_one_work+0x867/0xff0 [ 91.254291][ T4477] worker_thread+0xad7/0x12a0 [ 91.259739][ T4477] kthread+0x42e/0x520 [ 91.265278][ T4477] ret_from_fork+0x1f/0x30 [ 91.270281][ T4477] [ 91.270281][ T4477] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 91.279868][ T4477] __flush_work+0x116/0x210 [ 91.285156][ T4477] hci_dev_do_close+0x201/0x1020 [ 91.290782][ T4477] hci_unregister_dev+0x2eb/0x590 [ 91.296550][ T4477] vhci_release+0x73/0xc0 [ 91.301450][ T4477] __fput+0x212/0x8c0 [ 91.306189][ T4477] task_work_run+0x125/0x1a0 [ 91.311360][ T4477] do_exit+0x635/0x2110 [ 91.316182][ T4477] do_group_exit+0x12c/0x2f0 [ 91.321599][ T4477] get_signal+0x7eb/0x12e0 [ 91.326711][ T4477] arch_do_signal_or_restart+0xe6/0x12a0 [ 91.333282][ T4477] exit_to_user_mode_loop+0x9e/0x130 [ 91.339729][ T4477] exit_to_user_mode_prepare+0xee/0x180 [ 91.345871][ T4477] syscall_exit_to_user_mode+0x16/0x40 [ 91.352469][ T4477] do_syscall_64+0x58/0xa0 [ 91.357538][ T4477] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.364041][ T4477] [ 91.364041][ T4477] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 91.371941][ T4477] __mutex_lock_common+0x1e5/0x2400 [ 91.377820][ T4477] mutex_lock_nested+0x17/0x20 [ 91.383456][ T4477] bg_scan_update+0x44/0x3b0 [ 91.388700][ T4477] process_one_work+0x867/0xff0 [ 91.394386][ T4477] worker_thread+0xad7/0x12a0 [ 91.399643][ T4477] kthread+0x42e/0x520 [ 91.404752][ T4477] ret_from_fork+0x1f/0x30 [ 91.410199][ T4477] [ 91.410199][ T4477] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 91.420420][ T4477] __lock_acquire+0x2c66/0x7b50 [ 91.426676][ T4477] lock_acquire+0x19e/0x400 [ 91.432460][ T4477] __flush_work+0x116/0x210 [ 91.437809][ T4477] __cancel_work_timer+0x3f4/0x560 [ 91.443484][ T4477] hci_request_cancel_all+0xcc/0x300 [ 91.449355][ T4477] hci_dev_do_close+0x4e/0x1020 [ 91.454799][ T4477] hci_rfkill_set_block+0x101/0x180 [ 91.460739][ T4477] rfkill_set_block+0x1c1/0x3c0 [ 91.466164][ T4477] rfkill_fop_write+0x453/0x560 [ 91.471708][ T4477] vfs_write+0x304/0xd70 [ 91.476633][ T4477] ksys_write+0x153/0x260 [ 91.481957][ T4477] do_syscall_64+0x4c/0xa0 [ 91.487145][ T4477] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.493918][ T4477] [ 91.493918][ T4477] other info that might help us debug this: [ 91.493918][ T4477] [ 91.504373][ T4477] Chain exists of: [ 91.504373][ T4477] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 91.504373][ T4477] [ 91.520580][ T4477] Possible unsafe locking scenario: [ 91.520580][ T4477] [ 91.528159][ T4477] CPU0 CPU1 [ 91.533735][ T4477] ---- ---- [ 91.539224][ T4477] lock(rfkill_global_mutex); [ 91.544199][ T4477] lock(&data->open_mutex); [ 91.551698][ T4477] lock(rfkill_global_mutex); [ 91.559122][ T4477] lock((work_completion)(&hdev->bg_scan_update)); [ 91.565876][ T4477] [ 91.565876][ T4477] *** DEADLOCK *** [ 91.565876][ T4477] [ 91.574757][ T4477] 1 lock held by syz.0.17/4477: [ 91.579724][ T4477] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 91.590067][ T4477] [ 91.590067][ T4477] stack backtrace: [ 91.596083][ T4477] CPU: 0 PID: 4477 Comm: syz.0.17 Not tainted syzkaller #0 [ 91.603315][ T4477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 91.613606][ T4477] Call Trace: [ 91.616945][ T4477] [ 91.619917][ T4477] dump_stack_lvl+0x188/0x250 [ 91.624894][ T4477] ? load_image+0x410/0x410 [ 91.629706][ T4477] ? show_regs_print_info+0x20/0x20 [ 91.635495][ T4477] ? print_circular_bug+0x12b/0x1a0 [ 91.640738][ T4477] check_noncircular+0x296/0x330 [ 91.646097][ T4477] ? look_up_lock_class+0x71/0x110 [ 91.651527][ T4477] ? add_chain_block+0x9b0/0x9b0 [ 91.656507][ T4477] ? lockdep_lock+0xf1/0x1f0 [ 91.661513][ T4477] ? __lock_acquire+0x1305/0x7b50 [ 91.666694][ T4477] ? mark_lock+0x94/0x320 [ 91.671081][ T4477] ? _find_first_zero_bit+0xd1/0xf0 [ 91.676883][ T4477] __lock_acquire+0x2c66/0x7b50 [ 91.682438][ T4477] ? verify_lock_unused+0x140/0x140 [ 91.687813][ T4477] ? verify_lock_unused+0x140/0x140 [ 91.693158][ T4477] lock_acquire+0x19e/0x400 [ 91.697743][ T4477] ? __flush_work+0xfa/0x210 [ 91.702383][ T4477] ? __lock_acquire+0x7b50/0x7b50 [ 91.707451][ T4477] ? read_lock_is_recursive+0x10/0x10 [ 91.712865][ T4477] ? start_flush_work+0x784/0x830 [ 91.718126][ T4477] __flush_work+0x116/0x210 [ 91.722677][ T4477] ? __flush_work+0xfa/0x210 [ 91.727307][ T4477] ? flush_work+0x20/0x20 [ 91.731676][ T4477] ? try_to_grab_pending+0xfb/0x820 [ 91.737183][ T4477] ? mark_lock+0x94/0x320 [ 91.741651][ T4477] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 91.747771][ T4477] ? lock_chain_count+0x20/0x20 [ 91.752784][ T4477] ? mark_lock+0x94/0x320 [ 91.757669][ T4477] ? __cancel_work_timer+0x36a/0x560 [ 91.763652][ T4477] __cancel_work_timer+0x3f4/0x560 [ 91.768814][ T4477] ? cancel_work_sync+0x20/0x20 [ 91.773917][ T4477] ? __cancel_work+0x1f9/0x2e0 [ 91.778824][ T4477] ? lockdep_hardirqs_on+0x94/0x140 [ 91.784307][ T4477] ? __cancel_work+0x27b/0x2e0 [ 91.789122][ T4477] ? cancel_work+0x20/0x20 [ 91.793576][ T4477] hci_request_cancel_all+0xcc/0x300 [ 91.799010][ T4477] hci_dev_do_close+0x4e/0x1020 [ 91.804261][ T4477] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 91.810288][ T4477] ? _raw_spin_unlock+0x40/0x40 [ 91.815394][ T4477] hci_rfkill_set_block+0x101/0x180 [ 91.820725][ T4477] ? rcu_lock_release+0x20/0x20 [ 91.825643][ T4477] rfkill_set_block+0x1c1/0x3c0 [ 91.830969][ T4477] rfkill_fop_write+0x453/0x560 [ 91.836024][ T4477] ? rfkill_fop_read+0x560/0x560 [ 91.841003][ T4477] ? common_file_perm+0xf0/0x1c0 [ 91.845984][ T4477] ? fsnotify_perm+0x5d/0x560 [ 91.850695][ T4477] ? security_file_permission+0x75/0xa0 [ 91.856450][ T4477] ? rfkill_fop_read+0x560/0x560 [ 91.861464][ T4477] vfs_write+0x304/0xd70 [ 91.865749][ T4477] ? file_end_write+0x250/0x250 [ 91.870664][ T4477] ? __context_tracking_exit+0x4c/0x80 [ 91.876172][ T4477] ? __fdget_pos+0x1e2/0x370 [ 91.880802][ T4477] ksys_write+0x153/0x260 [ 91.885189][ T4477] ? __ia32_sys_read+0x80/0x80 [ 91.889991][ T4477] ? lockdep_hardirqs_on+0x94/0x140 [ 91.895229][ T4477] do_syscall_64+0x4c/0xa0 [ 91.899736][ T4477] ? clear_bhb_loop+0x30/0x80 [ 91.904588][ T4477] ? clear_bhb_loop+0x30/0x80 [ 91.909437][ T4477] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.915411][ T4477] RIP: 0033:0x7f9558c75e59 [ 91.919980][ T4477] 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 [ 91.940234][ T4477] RSP: 002b:00007ffd9a6d2658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 91.949281][ T4477] RAX: ffffffffffffffda RBX: 00007f9558efdfa0 RCX: 00007f9558c75e59 [ 91.957296][ T4477] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 91.965309][ T4477] RBP: 00007f9558d0be6f R08: 0000000000000000 R09: 0000000000000000 [ 91.973422][ T4477] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 91.981701][ T4477] R13: 00007f9558efdfac R14: 00007f9558efdfa0 R15: 00007f9558efdfa0 [ 91.989808][ T4477] [ 91.992908][ T3157] cfg80211: failed to load regulatory.db