Warning: Permanently added '10.128.10.1' (ED25519) to the list of known hosts. 2026/06/04 13:28:52 parsed 1 programs [ 53.766943][ T4201] cgroup: Unknown subsys name 'net' [ 53.869206][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 55.147452][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 56.375200][ T4209] chnl_net:caif_netlink_parms(): no params data found [ 56.413555][ T4209] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.421161][ T4209] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.429367][ T4209] device bridge_slave_0 entered promiscuous mode [ 56.437948][ T4209] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.445078][ T4209] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.452949][ T4209] device bridge_slave_1 entered promiscuous mode [ 56.470568][ T4209] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.481294][ T4209] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.500972][ T4209] team0: Port device team_slave_0 added [ 56.508588][ T4209] team0: Port device team_slave_1 added [ 56.523905][ T4209] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.530848][ T4209] 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. [ 56.556776][ T4209] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.569135][ T4209] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.576224][ T4209] 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. [ 56.605867][ T4209] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.632667][ T4209] device hsr_slave_0 entered promiscuous mode [ 56.639235][ T4209] device hsr_slave_1 entered promiscuous mode [ 56.717608][ T4209] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.727627][ T4209] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.736701][ T4209] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.746198][ T4209] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.767261][ T4209] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.774412][ T4209] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.782304][ T4209] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.789380][ T4209] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.828743][ T4209] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.840303][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.850567][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.859092][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.867894][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.879445][ T4209] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.889846][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.899292][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.907026][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.923277][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.931799][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.938828][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.951370][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.960744][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.973225][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.985404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.996523][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.007557][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.084791][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.093029][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.106190][ T4209] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.121391][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.138609][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.147575][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.155490][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.165706][ T4209] device veth0_vlan entered promiscuous mode [ 57.176144][ T4209] device veth1_vlan entered promiscuous mode [ 57.193386][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.203160][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.211176][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.222558][ T4209] device veth0_macvtap entered promiscuous mode [ 57.230988][ T4209] device veth1_macvtap entered promiscuous mode [ 57.247146][ T4209] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.254789][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.264909][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.277161][ T4209] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.285274][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.296660][ T4209] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.306554][ T4209] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.315362][ T4209] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.324143][ T4209] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.444800][ T4209] syz-executor (4209) used greatest stack depth: 21008 bytes left [ 57.457834][ T302] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.589973][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.600519][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.611022][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.628411][ T1507] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.637016][ T1507] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.645104][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.398145][ T302] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.556839][ T302] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.617485][ T302] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.420802][ T302] device hsr_slave_0 left promiscuous mode [ 63.429276][ T302] device hsr_slave_1 left promiscuous mode [ 63.436451][ T302] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 63.445372][ T302] batman_adv: batadv0: Removing interface: batadv_slave_0 2026/06/04 13:29:04 executed programs: 0 [ 63.464224][ T302] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 63.480765][ T302] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 63.502710][ T302] device bridge_slave_1 left promiscuous mode [ 63.509668][ T302] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.531136][ T302] device bridge_slave_0 left promiscuous mode [ 63.537872][ T302] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.554487][ T302] device veth1_macvtap left promiscuous mode [ 63.560885][ T302] device veth0_macvtap left promiscuous mode [ 63.567669][ T302] device veth1_vlan left promiscuous mode [ 63.573889][ T302] device veth0_vlan left promiscuous mode [ 63.700197][ T302] team0 (unregistering): Port device team_slave_1 removed [ 63.712457][ T302] team0 (unregistering): Port device team_slave_0 removed [ 63.726016][ T302] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 63.739324][ T302] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 63.787175][ T302] bond0 (unregistering): Released all slaves [ 63.980233][ T4326] chnl_net:caif_netlink_parms(): no params data found [ 64.051241][ T4326] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.059644][ T4326] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.069462][ T4326] device bridge_slave_0 entered promiscuous mode [ 64.079249][ T4326] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.086799][ T4326] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.096420][ T4326] device bridge_slave_1 entered promiscuous mode [ 64.123030][ T4326] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.144213][ T4326] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.189338][ T4326] team0: Port device team_slave_0 added [ 64.233451][ T4326] team0: Port device team_slave_1 added [ 64.260328][ T4326] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.267382][ T4326] 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. [ 64.293386][ T4326] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.306406][ T4326] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.313596][ T4326] 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. [ 64.341381][ T4326] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.377894][ T4326] device hsr_slave_0 entered promiscuous mode [ 64.390030][ T4326] device hsr_slave_1 entered promiscuous mode [ 64.934049][ T4326] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.954488][ T4326] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.973911][ T4326] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.994432][ T4326] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.116137][ T4326] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.132348][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.140737][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.154033][ T4326] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.167326][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.176968][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.185864][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.193013][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.213351][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.228868][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.238452][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.249729][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.256857][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.267085][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.276033][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.298717][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.314745][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.326080][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.335353][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.350495][ T4326] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.362180][ T4326] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.375261][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.387659][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.401135][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.423134][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.442020][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.462838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.542713][ T4305] Bluetooth: hci0: command 0x0409 tx timeout [ 65.633062][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.640647][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.662153][ T4326] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.700928][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.710498][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.742783][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.762126][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.770982][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.779505][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.792919][ T4326] device veth0_vlan entered promiscuous mode [ 65.806666][ T4326] device veth1_vlan entered promiscuous mode [ 65.830686][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.839638][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.849373][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.858375][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.871225][ T4326] device veth0_macvtap entered promiscuous mode [ 65.886448][ T302] ODEBUG: Out of memory. ODEBUG disabled [ 65.892238][ T4326] device veth1_macvtap entered promiscuous mode [ 65.903359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.921009][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.953533][ T4326] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.963396][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.972310][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.984473][ T4326] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.004588][ T4326] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.021675][ T4326] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.030391][ T4326] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.040511][ T4326] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.065180][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.075336][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.317184][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.331290][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.348463][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.383441][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.391885][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.399568][ T1507] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.534908][ T4445] [ 66.537262][ T4445] ====================================================== [ 66.544274][ T4445] WARNING: possible circular locking dependency detected [ 66.551299][ T4445] syzkaller #0 Not tainted [ 66.555707][ T4445] ------------------------------------------------------ [ 66.562721][ T4445] syz.0.17/4445 is trying to acquire lock: [ 66.568530][ T4445] ffff8880796c5028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 66.579595][ T4445] [ 66.579595][ T4445] but task is already holding lock: [ 66.587471][ T4445] ffffffff8d6c73e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 66.597134][ T4445] [ 66.597134][ T4445] which lock already depends on the new lock. [ 66.597134][ T4445] [ 66.607831][ T4445] [ 66.607831][ T4445] the existing dependency chain (in reverse order) is: [ 66.616856][ T4445] [ 66.616856][ T4445] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.624871][ T4445] __mutex_lock_common+0x1e3/0x2400 [ 66.630607][ T4445] mutex_lock_nested+0x17/0x20 [ 66.635904][ T4445] rfkill_register+0x33/0x980 [ 66.641197][ T4445] hci_register_dev+0x452/0x970 [ 66.646577][ T4445] vhci_create_device+0x32c/0x5c0 [ 66.652128][ T4445] vhci_write+0x391/0x450 [ 66.656986][ T4445] vfs_write+0x745/0xd60 [ 66.661749][ T4445] ksys_write+0x152/0x260 [ 66.666600][ T4445] do_syscall_64+0x4c/0xa0 [ 66.671538][ T4445] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.677956][ T4445] [ 66.677956][ T4445] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.685774][ T4445] __mutex_lock_common+0x1e3/0x2400 [ 66.691497][ T4445] mutex_lock_nested+0x17/0x20 [ 66.696792][ T4445] vhci_send_frame+0x88/0x100 [ 66.702272][ T4445] hci_send_frame+0x1a9/0x2e0 [ 66.707474][ T4445] hci_tx_work+0x9f9/0x1710 [ 66.712502][ T4445] process_one_work+0x85f/0x1010 [ 66.717965][ T4445] worker_thread+0xaa6/0x1290 [ 66.723170][ T4445] kthread+0x436/0x520 [ 66.727851][ T4445] ret_from_fork+0x1f/0x30 [ 66.732794][ T4445] [ 66.732794][ T4445] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 66.742000][ T4445] __flush_work+0x116/0x210 [ 66.747030][ T4445] hci_dev_do_close+0x1e7/0x1030 [ 66.752499][ T4445] hci_unregister_dev+0x2eb/0x590 [ 66.758049][ T4445] vhci_release+0x73/0xc0 [ 66.762910][ T4445] __fput+0x234/0x930 [ 66.767417][ T4445] task_work_run+0x125/0x1a0 [ 66.772531][ T4445] do_exit+0x626/0x20c0 [ 66.777210][ T4445] do_group_exit+0x12e/0x300 [ 66.782494][ T4445] get_signal+0x6d6/0x12d0 [ 66.787431][ T4445] arch_do_signal_or_restart+0xe7/0x12c0 [ 66.793585][ T4445] exit_to_user_mode_loop+0x9e/0x130 [ 66.799387][ T4445] exit_to_user_mode_prepare+0xee/0x180 [ 66.805451][ T4445] syscall_exit_to_user_mode+0x16/0x40 [ 66.811437][ T4445] do_syscall_64+0x58/0xa0 [ 66.816374][ T4445] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.822789][ T4445] [ 66.822789][ T4445] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 66.830434][ T4445] __mutex_lock_common+0x1e3/0x2400 [ 66.836163][ T4445] mutex_lock_nested+0x17/0x20 [ 66.841452][ T4445] bg_scan_update+0x44/0x3b0 [ 66.846560][ T4445] process_one_work+0x85f/0x1010 [ 66.852020][ T4445] worker_thread+0xaa6/0x1290 [ 66.857220][ T4445] kthread+0x436/0x520 [ 66.861809][ T4445] ret_from_fork+0x1f/0x30 [ 66.866743][ T4445] [ 66.866743][ T4445] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.876560][ T4445] __lock_acquire+0x2c42/0x7d10 [ 66.881937][ T4445] lock_acquire+0x19e/0x400 [ 66.886966][ T4445] __flush_work+0x116/0x210 [ 66.891991][ T4445] __cancel_work_timer+0x3f4/0x560 [ 66.897626][ T4445] hci_request_cancel_all+0xcc/0x300 [ 66.903434][ T4445] hci_dev_do_close+0x4e/0x1030 [ 66.908809][ T4445] hci_rfkill_set_block+0x10a/0x190 [ 66.914619][ T4445] rfkill_set_block+0x1c9/0x3d0 [ 66.919990][ T4445] rfkill_fop_write+0x452/0x560 [ 66.925361][ T4445] vfs_write+0x30b/0xd60 [ 66.930127][ T4445] ksys_write+0x152/0x260 [ 66.934976][ T4445] do_syscall_64+0x4c/0xa0 [ 66.939914][ T4445] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.946334][ T4445] [ 66.946334][ T4445] other info that might help us debug this: [ 66.946334][ T4445] [ 66.956560][ T4445] Chain exists of: [ 66.956560][ T4445] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.956560][ T4445] [ 66.972543][ T4445] Possible unsafe locking scenario: [ 66.972543][ T4445] [ 66.979998][ T4445] CPU0 CPU1 [ 66.985362][ T4445] ---- ---- [ 66.990722][ T4445] lock(rfkill_global_mutex); [ 66.995574][ T4445] lock(&data->open_mutex); [ 67.002688][ T4445] lock(rfkill_global_mutex); [ 67.009972][ T4445] lock((work_completion)(&hdev->bg_scan_update)); [ 67.016651][ T4445] [ 67.016651][ T4445] *** DEADLOCK *** [ 67.016651][ T4445] [ 67.024884][ T4445] 1 lock held by syz.0.17/4445: [ 67.029737][ T4445] #0: ffffffff8d6c73e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 67.039844][ T4445] [ 67.039844][ T4445] stack backtrace: [ 67.045742][ T4445] CPU: 1 PID: 4445 Comm: syz.0.17 Not tainted syzkaller #0 [ 67.052943][ T4445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 67.063007][ T4445] Call Trace: [ 67.066284][ T4445] [ 67.069217][ T4445] dump_stack_lvl+0x188/0x250 [ 67.073903][ T4445] ? load_image+0x400/0x400 [ 67.078416][ T4445] ? show_regs_print_info+0x20/0x20 [ 67.083619][ T4445] ? print_circular_bug+0x12b/0x1a0 [ 67.088826][ T4445] check_noncircular+0x296/0x330 [ 67.093767][ T4445] ? look_up_lock_class+0x71/0x110 [ 67.098886][ T4445] ? add_chain_block+0x940/0x940 [ 67.103824][ T4445] ? lockdep_lock+0xf1/0x1f0 [ 67.108419][ T4445] ? __lock_acquire+0x12e8/0x7d10 [ 67.113445][ T4445] ? mark_lock+0x94/0x320 [ 67.117777][ T4445] __lock_acquire+0x2c42/0x7d10 [ 67.122678][ T4445] ? verify_lock_unused+0x140/0x140 [ 67.127971][ T4445] ? mark_lock+0x94/0x320 [ 67.132310][ T4445] lock_acquire+0x19e/0x400 [ 67.136821][ T4445] ? __flush_work+0xfa/0x210 [ 67.141424][ T4445] ? __lock_acquire+0x7d10/0x7d10 [ 67.146451][ T4445] ? read_lock_is_recursive+0x10/0x10 [ 67.151914][ T4445] ? start_flush_work+0x776/0x820 [ 67.158731][ T4445] __flush_work+0x116/0x210 [ 67.163257][ T4445] ? __flush_work+0xfa/0x210 [ 67.167859][ T4445] ? flush_work+0x20/0x20 [ 67.172208][ T4445] ? try_to_grab_pending+0xfa/0x7f0 [ 67.177499][ T4445] ? mark_lock+0x94/0x320 [ 67.181838][ T4445] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 67.187830][ T4445] ? lock_chain_count+0x20/0x20 [ 67.193305][ T4445] ? mark_lock+0x94/0x320 [ 67.197918][ T4445] ? __cancel_work_timer+0x36a/0x560 [ 67.203947][ T4445] __cancel_work_timer+0x3f4/0x560 [ 67.209253][ T4445] ? cancel_work_sync+0x20/0x20 [ 67.214110][ T4445] ? __cancel_work+0x1f9/0x2e0 [ 67.218882][ T4445] ? lockdep_hardirqs_on+0x94/0x140 [ 67.224088][ T4445] ? __cancel_work+0x27b/0x2e0 [ 67.228865][ T4445] ? cancel_work+0x20/0x20 [ 67.233293][ T4445] ? lock_chain_count+0x20/0x20 [ 67.238150][ T4445] hci_request_cancel_all+0xcc/0x300 [ 67.243443][ T4445] hci_dev_do_close+0x4e/0x1030 [ 67.248300][ T4445] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 67.254424][ T4445] ? _raw_spin_unlock+0x40/0x40 [ 67.259283][ T4445] hci_rfkill_set_block+0x10a/0x190 [ 67.264489][ T4445] ? rcu_lock_release+0x20/0x20 [ 67.269348][ T4445] rfkill_set_block+0x1c9/0x3d0 [ 67.274202][ T4445] rfkill_fop_write+0x452/0x560 [ 67.279056][ T4445] ? rfkill_fop_read+0x520/0x520 [ 67.283993][ T4445] ? common_file_perm+0xb0/0x1c0 [ 67.288939][ T4445] ? fsnotify_perm+0x5d/0x560 [ 67.293968][ T4445] ? security_file_permission+0x75/0xa0 [ 67.299697][ T4445] ? rfkill_fop_read+0x520/0x520 [ 67.304635][ T4445] vfs_write+0x30b/0xd60 [ 67.308866][ T4445] ? file_end_write+0x250/0x250 [ 67.313707][ T4445] ? __context_tracking_exit+0x4c/0x80 [ 67.319153][ T4445] ? __lock_acquire+0x7d10/0x7d10 [ 67.324171][ T4445] ? __fdget_pos+0x1e2/0x370 [ 67.328739][ T4445] ksys_write+0x152/0x260 [ 67.333050][ T4445] ? __ia32_sys_read+0x80/0x80 [ 67.337794][ T4445] ? lockdep_hardirqs_on+0x94/0x140 [ 67.342972][ T4445] do_syscall_64+0x4c/0xa0 [ 67.347369][ T4445] ? clear_bhb_loop+0x30/0x80 [ 67.352029][ T4445] ? clear_bhb_loop+0x30/0x80 [ 67.356696][ T4445] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.362587][ T4445] RIP: 0033:0x7fc724780e59 [ 67.367002][ T4445] 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 [ 67.386685][ T4445] RSP: 002b:00007ffd4776cfd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 67.395089][ T4445] RAX: ffffffffffffffda RBX: 00007fc7249f9fa0 RCX: 00007fc724780e59 [ 67.403043][ T4445] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 67.410991][ T4445] RBP: 00007fc724816d6f R08: 0000000000000000 R09: 0000000000000000 [ 67.418940][ T4445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 67.426890][ T4445] R13: 00007fc7249f9fac R14: 00007fc7249f9fa0 R15: 00007fc7249f9fa0 [ 67.434851][ T4445]