Warning: Permanently added '10.128.0.135' (ED25519) to the list of known hosts. 2025/08/11 18:23:52 ignoring optional flag "sandboxArg"="0" 2025/08/11 18:23:53 parsed 1 programs [ 47.445424][ T4189] cgroup: Unknown subsys name 'net' [ 47.576397][ T4189] cgroup: Unknown subsys name 'rlimit' [ 48.784558][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 50.208183][ T4204] chnl_net:caif_netlink_parms(): no params data found [ 50.245292][ T4204] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.252758][ T4204] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.260506][ T4204] device bridge_slave_0 entered promiscuous mode [ 50.270877][ T4204] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.277986][ T4204] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.285709][ T4204] device bridge_slave_1 entered promiscuous mode [ 50.304484][ T4204] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.317569][ T4204] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.337669][ T4204] team0: Port device team_slave_0 added [ 50.344560][ T4204] team0: Port device team_slave_1 added [ 50.364054][ T4204] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.370998][ T4204] 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. [ 50.396993][ T4204] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.409034][ T4204] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.416044][ T4204] 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. [ 50.442006][ T4204] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.470512][ T4204] device hsr_slave_0 entered promiscuous mode [ 50.477755][ T4204] device hsr_slave_1 entered promiscuous mode [ 50.555666][ T4204] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.565426][ T4204] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.574296][ T4204] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.584752][ T4204] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.648688][ T4204] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.655887][ T4204] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.663640][ T4204] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.670700][ T4204] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.720592][ T4204] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.735039][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.745127][ T391] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.754826][ T391] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.763976][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.778690][ T4204] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.794597][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.803999][ T3027] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.811046][ T3027] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.819118][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.830340][ T3027] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.837430][ T3027] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.864713][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.874364][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.884383][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.894155][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.914799][ T4204] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 50.927815][ T4204] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.937161][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.055017][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.064905][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.078645][ T4204] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.099720][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.123291][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.134011][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.143812][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.155237][ T4204] device veth0_vlan entered promiscuous mode [ 51.168647][ T4204] device veth1_vlan entered promiscuous mode [ 51.184409][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.193697][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.212392][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.220979][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.231931][ T4204] device veth0_macvtap entered promiscuous mode [ 51.243475][ T4204] device veth1_macvtap entered promiscuous mode [ 51.260400][ T4204] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.270335][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.279092][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.288388][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.299013][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.311591][ T4204] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.322254][ T4204] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.331068][ T4204] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.340346][ T4204] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.349423][ T4204] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.361215][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.370809][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.738654][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.286245][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.685922][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.757314][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.884659][ T144] device hsr_slave_0 left promiscuous mode [ 57.902988][ T144] device hsr_slave_1 left promiscuous mode [ 57.912403][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 57.920236][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 57.935683][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 57.945016][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 57.957709][ T144] device bridge_slave_1 left promiscuous mode [ 57.966040][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.998411][ T144] device bridge_slave_0 left promiscuous mode [ 58.015533][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.053382][ T144] device veth1_macvtap left promiscuous mode [ 58.059684][ T144] device veth0_macvtap left promiscuous mode [ 58.085454][ T144] device veth1_vlan left promiscuous mode [ 58.106952][ T144] device veth0_vlan left promiscuous mode [ 58.249998][ T144] team0 (unregistering): Port device team_slave_1 removed [ 58.262115][ T144] team0 (unregistering): Port device team_slave_0 removed [ 58.274048][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.286020][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.330578][ T144] bond0 (unregistering): Released all slaves [ 59.022326][ T391] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.030297][ T391] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.051047][ T3027] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.064648][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.073920][ T3027] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.086032][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/11 18:24:07 executed programs: 0 [ 59.882339][ T4367] chnl_net:caif_netlink_parms(): no params data found [ 59.997923][ T4367] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.012166][ T4367] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.020420][ T4367] device bridge_slave_0 entered promiscuous mode [ 60.036249][ T4367] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.043873][ T4367] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.051771][ T4367] device bridge_slave_1 entered promiscuous mode [ 60.100571][ T4367] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.125115][ T4367] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.154154][ T4367] team0: Port device team_slave_0 added [ 60.182307][ T4367] team0: Port device team_slave_1 added [ 60.223862][ T4367] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.230825][ T4367] 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. [ 60.277203][ T4367] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.295243][ T4367] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.302328][ T4367] 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. [ 60.328814][ T4367] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.473685][ T4367] device hsr_slave_0 entered promiscuous mode [ 60.480446][ T4367] device hsr_slave_1 entered promiscuous mode [ 61.112214][ T4367] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.124096][ T4367] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.133759][ T4367] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.169514][ T4367] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.257451][ T4367] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.273156][ T4367] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.298590][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.306912][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.317951][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.326779][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.337134][ T4347] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.344249][ T4347] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.354484][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.371615][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.382968][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.393176][ T4347] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.400239][ T4347] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.410346][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.457150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.474205][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.485093][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.494856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.505088][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.519109][ T4367] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.534504][ T4367] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.549823][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.568639][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.577444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.587137][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.596792][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.607135][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.760262][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.769791][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.783698][ T4367] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.783755][ T4408] Bluetooth: hci0: command 0x0409 tx timeout [ 61.823431][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.833793][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.852768][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.862436][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.874822][ T4367] device veth0_vlan entered promiscuous mode [ 61.904600][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.912785][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.927098][ T4367] device veth1_vlan entered promiscuous mode [ 61.969019][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.979352][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.003568][ T4367] device veth0_macvtap entered promiscuous mode [ 62.022488][ T4367] device veth1_macvtap entered promiscuous mode [ 62.039689][ T4367] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.047526][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.057421][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.065629][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.074710][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.091021][ T4367] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.110813][ T4367] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.121216][ T4367] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.131097][ T4367] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.140061][ T4367] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.152578][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.163788][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.245994][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.272098][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.286898][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.321434][ T3027] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.329371][ T3027] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.354685][ T4347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.452754][ T4512] [ 62.455102][ T4512] ====================================================== [ 62.462111][ T4512] WARNING: possible circular locking dependency detected [ 62.469130][ T4512] 5.15.189-syzkaller #0 Not tainted [ 62.474312][ T4512] ------------------------------------------------------ [ 62.481312][ T4512] syz.0.17/4512 is trying to acquire lock: [ 62.487103][ T4512] ffff88807e9f4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 62.498153][ T4512] [ 62.498153][ T4512] but task is already holding lock: [ 62.505504][ T4512] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 62.515167][ T4512] [ 62.515167][ T4512] which lock already depends on the new lock. [ 62.515167][ T4512] [ 62.525559][ T4512] [ 62.525559][ T4512] the existing dependency chain (in reverse order) is: [ 62.534564][ T4512] [ 62.534564][ T4512] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 62.542558][ T4512] __mutex_lock_common+0x1eb/0x2390 [ 62.548281][ T4512] mutex_lock_nested+0x17/0x20 [ 62.553565][ T4512] rfkill_register+0x33/0x8a0 [ 62.558761][ T4512] hci_register_dev+0x452/0x970 [ 62.564128][ T4512] vhci_create_device+0x32c/0x5c0 [ 62.569670][ T4512] vhci_write+0x391/0x450 [ 62.574515][ T4512] vfs_write+0x712/0xd00 [ 62.579274][ T4512] ksys_write+0x14d/0x250 [ 62.584113][ T4512] do_syscall_64+0x4c/0xa0 [ 62.589039][ T4512] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 62.595443][ T4512] [ 62.595443][ T4512] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 62.603255][ T4512] __mutex_lock_common+0x1eb/0x2390 [ 62.608967][ T4512] mutex_lock_nested+0x17/0x20 [ 62.614240][ T4512] vhci_send_frame+0x88/0x100 [ 62.619439][ T4512] hci_send_frame+0x1a9/0x2e0 [ 62.624636][ T4512] hci_tx_work+0x9f9/0x1710 [ 62.629654][ T4512] process_one_work+0x863/0x1000 [ 62.635102][ T4512] worker_thread+0xaa8/0x12a0 [ 62.640297][ T4512] kthread+0x436/0x520 [ 62.644886][ T4512] ret_from_fork+0x1f/0x30 [ 62.649814][ T4512] [ 62.649814][ T4512] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 62.659014][ T4512] __flush_work+0xdd/0x1b0 [ 62.663947][ T4512] hci_dev_do_close+0x1e7/0x1030 [ 62.669401][ T4512] hci_unregister_dev+0x2d7/0x580 [ 62.674936][ T4512] vhci_release+0x73/0xc0 [ 62.679782][ T4512] __fput+0x234/0x930 [ 62.684277][ T4512] task_work_run+0x125/0x1a0 [ 62.689387][ T4512] do_exit+0x61e/0x20a0 [ 62.694053][ T4512] do_group_exit+0x12e/0x300 [ 62.699154][ T4512] get_signal+0x6ca/0x12c0 [ 62.704086][ T4512] arch_do_signal_or_restart+0xc1/0x1300 [ 62.710221][ T4512] exit_to_user_mode_loop+0x9e/0x130 [ 62.716576][ T4512] exit_to_user_mode_prepare+0xb1/0x140 [ 62.722623][ T4512] syscall_exit_to_user_mode+0x16/0x40 [ 62.728581][ T4512] do_syscall_64+0x58/0xa0 [ 62.733497][ T4512] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 62.739898][ T4512] [ 62.739898][ T4512] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 62.747528][ T4512] __mutex_lock_common+0x1eb/0x2390 [ 62.753236][ T4512] mutex_lock_nested+0x17/0x20 [ 62.758500][ T4512] bg_scan_update+0x44/0x3b0 [ 62.763590][ T4512] process_one_work+0x863/0x1000 [ 62.769033][ T4512] worker_thread+0xaa8/0x12a0 [ 62.774210][ T4512] kthread+0x436/0x520 [ 62.778780][ T4512] ret_from_fork+0x1f/0x30 [ 62.783705][ T4512] [ 62.783705][ T4512] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 62.793494][ T4512] __lock_acquire+0x2c33/0x7c60 [ 62.798844][ T4512] lock_acquire+0x197/0x3f0 [ 62.803853][ T4512] __flush_work+0xdd/0x1b0 [ 62.808776][ T4512] __cancel_work_timer+0x3ac/0x520 [ 62.814383][ T4512] hci_request_cancel_all+0xcc/0x300 [ 62.820163][ T4512] hci_dev_do_close+0x4e/0x1030 [ 62.825512][ T4512] hci_rfkill_set_block+0x10a/0x190 [ 62.831218][ T4512] rfkill_set_block+0x1c6/0x420 [ 62.836575][ T4512] rfkill_fop_write+0x458/0x560 [ 62.841923][ T4512] vfs_write+0x300/0xd00 [ 62.846663][ T4512] ksys_write+0x14d/0x250 [ 62.851487][ T4512] do_syscall_64+0x4c/0xa0 [ 62.856400][ T4512] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 62.862790][ T4512] [ 62.862790][ T4512] other info that might help us debug this: [ 62.862790][ T4512] [ 62.872995][ T4512] Chain exists of: [ 62.872995][ T4512] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 62.872995][ T4512] [ 62.888689][ T4512] Possible unsafe locking scenario: [ 62.888689][ T4512] [ 62.896110][ T4512] CPU0 CPU1 [ 62.901448][ T4512] ---- ---- [ 62.906783][ T4512] lock(rfkill_global_mutex); [ 62.911525][ T4512] lock(&data->open_mutex); [ 62.918606][ T4512] lock(rfkill_global_mutex); [ 62.925859][ T4512] lock((work_completion)(&hdev->bg_scan_update)); [ 62.932419][ T4512] [ 62.932419][ T4512] *** DEADLOCK *** [ 62.932419][ T4512] [ 62.940533][ T4512] 1 lock held by syz.0.17/4512: [ 62.945355][ T4512] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 62.955418][ T4512] [ 62.955418][ T4512] stack backtrace: [ 62.961287][ T4512] CPU: 0 PID: 4512 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 62.969237][ T4512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 62.979272][ T4512] Call Trace: [ 62.982530][ T4512] [ 62.985443][ T4512] dump_stack_lvl+0x168/0x230 [ 62.990100][ T4512] ? load_image+0x3b0/0x3b0 [ 62.994580][ T4512] ? show_regs_print_info+0x20/0x20 [ 62.999755][ T4512] ? print_circular_bug+0x12b/0x1a0 [ 63.004933][ T4512] check_noncircular+0x274/0x310 [ 63.009846][ T4512] ? add_chain_block+0x940/0x940 [ 63.014759][ T4512] ? lockdep_lock+0xdc/0x1e0 [ 63.019329][ T4512] ? __lock_acquire+0x12d9/0x7c60 [ 63.024327][ T4512] ? lockdep_lock+0x1e0/0x1e0 [ 63.028977][ T4512] ? mark_lock+0x94/0x320 [ 63.033280][ T4512] __lock_acquire+0x2c33/0x7c60 [ 63.038110][ T4512] ? verify_lock_unused+0x140/0x140 [ 63.043285][ T4512] ? verify_lock_unused+0x140/0x140 [ 63.048465][ T4512] lock_acquire+0x197/0x3f0 [ 63.052948][ T4512] ? __flush_work+0xc1/0x1b0 [ 63.057512][ T4512] ? __lock_acquire+0x7c60/0x7c60 [ 63.062516][ T4512] ? read_lock_is_recursive+0x10/0x10 [ 63.067863][ T4512] ? start_flush_work+0x776/0x820 [ 63.072860][ T4512] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 63.078728][ T4512] ? _raw_spin_unlock+0x40/0x40 [ 63.083555][ T4512] __flush_work+0xdd/0x1b0 [ 63.087946][ T4512] ? __flush_work+0xc1/0x1b0 [ 63.092509][ T4512] ? flush_work+0x20/0x20 [ 63.096814][ T4512] ? try_to_grab_pending+0xf3/0x7e0 [ 63.101985][ T4512] ? lockdep_hardirqs_off+0x70/0x100 [ 63.107244][ T4512] ? mark_lock+0x94/0x320 [ 63.111550][ T4512] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 63.117508][ T4512] ? lock_chain_count+0x20/0x20 [ 63.122332][ T4512] ? mark_lock+0x94/0x320 [ 63.126637][ T4512] ? __cancel_work_timer+0x331/0x520 [ 63.131895][ T4512] __cancel_work_timer+0x3ac/0x520 [ 63.136981][ T4512] ? cancel_work_sync+0x20/0x20 [ 63.141804][ T4512] ? __cancel_work+0x1f4/0x2d0 [ 63.146543][ T4512] ? lockdep_hardirqs_on+0x94/0x140 [ 63.151717][ T4512] ? __cancel_work+0x26f/0x2d0 [ 63.156463][ T4512] ? cancel_work+0x20/0x20 [ 63.160851][ T4512] ? lock_chain_count+0x20/0x20 [ 63.165681][ T4512] hci_request_cancel_all+0xcc/0x300 [ 63.170943][ T4512] hci_dev_do_close+0x4e/0x1030 [ 63.175768][ T4512] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 63.181643][ T4512] ? _raw_spin_unlock+0x40/0x40 [ 63.186469][ T4512] hci_rfkill_set_block+0x10a/0x190 [ 63.191642][ T4512] ? rcu_lock_release+0x20/0x20 [ 63.196475][ T4512] rfkill_set_block+0x1c6/0x420 [ 63.201303][ T4512] rfkill_fop_write+0x458/0x560 [ 63.206130][ T4512] ? verify_lock_unused+0x140/0x140 [ 63.211304][ T4512] ? rfkill_fop_read+0x4b0/0x4b0 [ 63.216218][ T4512] ? common_file_perm+0x150/0x1c0 [ 63.221218][ T4512] ? fsnotify_perm+0x5d/0x560 [ 63.225877][ T4512] ? security_file_permission+0x75/0xa0 [ 63.231400][ T4512] ? rfkill_fop_read+0x4b0/0x4b0 [ 63.236313][ T4512] vfs_write+0x300/0xd00 [ 63.240567][ T4512] ? file_end_write+0x250/0x250 [ 63.245397][ T4512] ? __context_tracking_exit+0x4c/0x80 [ 63.250833][ T4512] ? __lock_acquire+0x7c60/0x7c60 [ 63.255837][ T4512] ? __fdget_pos+0x1e2/0x370 [ 63.260402][ T4512] ksys_write+0x14d/0x250 [ 63.264709][ T4512] ? __ia32_sys_read+0x80/0x80 [ 63.269449][ T4512] ? lockdep_hardirqs_on+0x94/0x140 [ 63.274622][ T4512] do_syscall_64+0x4c/0xa0 [ 63.279014][ T4512] ? clear_bhb_loop+0x30/0x80 [ 63.283666][ T4512] ? clear_bhb_loop+0x30/0x80 [ 63.288314][ T4512] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 63.294191][ T4512] RIP: 0033:0x7f3b92539be9 [ 63.298584][ T4512] 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 [ 63.318163][ T4512] RSP: 002b:00007ffe83fd8c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 63.326580][ T4512] RAX: ffffffffffffffda RBX: 00007f3b92760fa0 RCX: 00007f3b92539be9 [ 63.334530][ T4512] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 63.342475][ T4512] RBP: 00007f3b925bce19 R08: 0000000000000000 R09: 0000000000000000 [ 63.350419][ T4512] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 63.358365][ T4512] R13: 00007f3b92760fa0 R14: 00007f3b92760fa0 R15: 0000000000000003 [ 63.366315][ T4512]