Warning: Permanently added '10.128.0.193' (ED25519) to the list of known hosts. 2025/08/24 08:26:04 parsed 1 programs [ 54.330025][ T4190] cgroup: Unknown subsys name 'net' [ 54.486720][ T4190] cgroup: Unknown subsys name 'rlimit' [ 55.699973][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 58.061073][ T4237] chnl_net:caif_netlink_parms(): no params data found [ 58.120798][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.128673][ T4237] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.137007][ T4237] device bridge_slave_0 entered promiscuous mode [ 58.147076][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.154402][ T4237] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.162753][ T4237] device bridge_slave_1 entered promiscuous mode [ 58.190001][ T4237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.201332][ T4237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.229621][ T4237] team0: Port device team_slave_0 added [ 58.237288][ T4237] team0: Port device team_slave_1 added [ 58.259719][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.266813][ T4237] 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. [ 58.292977][ T4237] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.306066][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.313294][ T4237] 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. [ 58.339464][ T4237] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.376927][ T4237] device hsr_slave_0 entered promiscuous mode [ 58.383997][ T4237] device hsr_slave_1 entered promiscuous mode [ 58.504260][ T4237] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.515955][ T4237] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.526895][ T4237] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.536672][ T4237] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.567814][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.575068][ T4237] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.583035][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.590113][ T4237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.641934][ T4237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.656220][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.668506][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.677232][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.687108][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.701826][ T4237] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.715737][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.724777][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.731878][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.744240][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.752693][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.759724][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.776742][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.786048][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.797816][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.816232][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.825119][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.840090][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.938091][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.945905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.979265][ T4237] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.997004][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.013778][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.022888][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.030653][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.040709][ T4237] device veth0_vlan entered promiscuous mode [ 59.053161][ T4237] device veth1_vlan entered promiscuous mode [ 59.069604][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.078183][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.090294][ T4237] device veth0_macvtap entered promiscuous mode [ 59.100240][ T4237] device veth1_macvtap entered promiscuous mode [ 59.113367][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.120881][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.129643][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.138029][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.147001][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.158268][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.182176][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.190887][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.204304][ T4237] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.213456][ T4237] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.223142][ T4237] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.231946][ T4237] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.867931][ T914] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.888997][ T914] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.906051][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.919906][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.928333][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.938814][ T914] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/24 08:26:12 executed programs: 0 [ 60.920485][ T4291] chnl_net:caif_netlink_parms(): no params data found [ 60.993295][ T4291] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.000389][ T4291] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.010745][ T4291] device bridge_slave_0 entered promiscuous mode [ 61.020128][ T4291] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.028653][ T4291] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.038756][ T4291] device bridge_slave_1 entered promiscuous mode [ 61.063241][ T4291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.074820][ T4291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.100627][ T4291] team0: Port device team_slave_0 added [ 61.109950][ T4291] team0: Port device team_slave_1 added [ 61.129389][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.136521][ T4291] 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. [ 61.164085][ T4291] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.183348][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.197404][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.204666][ T4291] 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. [ 61.231175][ T4291] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.256947][ T4291] device hsr_slave_0 entered promiscuous mode [ 61.263774][ T4291] device hsr_slave_1 entered promiscuous mode [ 61.270234][ T4291] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.278149][ T4291] Cannot create hsr debugfs directory [ 62.852357][ T4257] Bluetooth: hci0: command 0x0409 tx timeout [ 64.767822][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.817124][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.878314][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.921998][ T1109] Bluetooth: hci0: command 0x041b tx timeout [ 65.728400][ T4291] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.738364][ T4291] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.752452][ T4291] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.761099][ T4291] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.817896][ T4291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.829255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.837144][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.862676][ T4291] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.872526][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.881143][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.890905][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.898000][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.906142][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.940651][ T4291] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.952376][ T4291] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.964879][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.974493][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.982985][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.990015][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.998072][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.006607][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.015222][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.024025][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.032766][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.042378][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.050664][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.059177][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.067570][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.075857][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.084294][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.092382][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.186125][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.195694][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.221743][ T4291] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.237196][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.246270][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.273665][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.286676][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.295406][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.303719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.321646][ T4291] device veth0_vlan entered promiscuous mode [ 66.333494][ T4291] device veth1_vlan entered promiscuous mode [ 66.348403][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.357215][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.365895][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.375362][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.390364][ T4291] device veth0_macvtap entered promiscuous mode [ 66.405383][ T144] device hsr_slave_0 left promiscuous mode [ 66.412993][ T144] device hsr_slave_1 left promiscuous mode [ 66.419483][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.427966][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.436100][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.443747][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.451345][ T144] device bridge_slave_1 left promiscuous mode [ 66.458421][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.471229][ T144] device bridge_slave_0 left promiscuous mode [ 66.477494][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.492911][ T144] device veth1_macvtap left promiscuous mode [ 66.499141][ T144] device veth0_macvtap left promiscuous mode [ 66.506012][ T144] device veth1_vlan left promiscuous mode [ 66.512078][ T144] device veth0_vlan left promiscuous mode [ 66.643058][ T144] team0 (unregistering): Port device team_slave_1 removed [ 66.655121][ T144] team0 (unregistering): Port device team_slave_0 removed [ 66.670131][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.683374][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.728395][ T144] bond0 (unregistering): Released all slaves [ 66.775295][ T4291] device veth1_macvtap entered promiscuous mode [ 66.792111][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.799470][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.808160][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.816608][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.825166][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.838129][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.847279][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.855875][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.865780][ T4291] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.875906][ T4291] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.884904][ T4291] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.895083][ T4291] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.957404][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.971106][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.981230][ T1219] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.990844][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.000327][ T1219] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.014151][ T2240] Bluetooth: hci0: command 0x040f tx timeout [ 67.017792][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.126827][ T4342] [ 67.129184][ T4342] ====================================================== [ 67.136195][ T4342] WARNING: possible circular locking dependency detected [ 67.143223][ T4342] 5.15.189-syzkaller #0 Not tainted [ 67.148414][ T4342] ------------------------------------------------------ [ 67.155424][ T4342] syz.0.17/4342 is trying to acquire lock: [ 67.161226][ T4342] ffff888024fd4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 67.172289][ T4342] [ 67.172289][ T4342] but task is already holding lock: [ 67.179651][ T4342] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.189316][ T4342] [ 67.189316][ T4342] which lock already depends on the new lock. [ 67.189316][ T4342] [ 67.199714][ T4342] [ 67.199714][ T4342] the existing dependency chain (in reverse order) is: [ 67.208727][ T4342] [ 67.208727][ T4342] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.216725][ T4342] __mutex_lock_common+0x1eb/0x2390 [ 67.222452][ T4342] mutex_lock_nested+0x17/0x20 [ 67.227745][ T4342] rfkill_register+0x33/0x8a0 [ 67.232946][ T4342] hci_register_dev+0x452/0x970 [ 67.238328][ T4342] vhci_create_device+0x32c/0x5c0 [ 67.243887][ T4342] vhci_write+0x391/0x450 [ 67.248746][ T4342] vfs_write+0x712/0xd00 [ 67.253510][ T4342] ksys_write+0x14d/0x250 [ 67.258722][ T4342] do_syscall_64+0x4c/0xa0 [ 67.263663][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.270085][ T4342] [ 67.270085][ T4342] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.277912][ T4342] __mutex_lock_common+0x1eb/0x2390 [ 67.283635][ T4342] mutex_lock_nested+0x17/0x20 [ 67.288921][ T4342] vhci_send_frame+0x88/0x100 [ 67.294127][ T4342] hci_send_frame+0x1a9/0x2e0 [ 67.299326][ T4342] hci_tx_work+0x9f9/0x1710 [ 67.304348][ T4342] process_one_work+0x863/0x1000 [ 67.309815][ T4342] worker_thread+0xaa8/0x12a0 [ 67.315012][ T4342] kthread+0x436/0x520 [ 67.319602][ T4342] ret_from_fork+0x1f/0x30 [ 67.324546][ T4342] [ 67.324546][ T4342] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.333750][ T4342] __flush_work+0xdd/0x1b0 [ 67.338688][ T4342] hci_dev_do_close+0x1e7/0x1030 [ 67.344152][ T4342] hci_unregister_dev+0x2d7/0x580 [ 67.349702][ T4342] vhci_release+0x73/0xc0 [ 67.354558][ T4342] __fput+0x234/0x930 [ 67.359083][ T4342] task_work_run+0x125/0x1a0 [ 67.364195][ T4342] do_exit+0x61e/0x20a0 [ 67.368885][ T4342] do_group_exit+0x12e/0x300 [ 67.373996][ T4342] get_signal+0x6ca/0x12c0 [ 67.379038][ T4342] arch_do_signal_or_restart+0xc1/0x1300 [ 67.385196][ T4342] exit_to_user_mode_loop+0x9e/0x130 [ 67.391007][ T4342] exit_to_user_mode_prepare+0xb1/0x140 [ 67.397084][ T4342] syscall_exit_to_user_mode+0x16/0x40 [ 67.403072][ T4342] do_syscall_64+0x58/0xa0 [ 67.408015][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.414436][ T4342] [ 67.414436][ T4342] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.422083][ T4342] __mutex_lock_common+0x1eb/0x2390 [ 67.427809][ T4342] mutex_lock_nested+0x17/0x20 [ 67.433099][ T4342] bg_scan_update+0x44/0x3b0 [ 67.438211][ T4342] process_one_work+0x863/0x1000 [ 67.443673][ T4342] worker_thread+0xaa8/0x12a0 [ 67.448873][ T4342] kthread+0x436/0x520 [ 67.453461][ T4342] ret_from_fork+0x1f/0x30 [ 67.458403][ T4342] [ 67.458403][ T4342] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.468217][ T4342] __lock_acquire+0x2c33/0x7c60 [ 67.473597][ T4342] lock_acquire+0x197/0x3f0 [ 67.478635][ T4342] __flush_work+0xdd/0x1b0 [ 67.483582][ T4342] __cancel_work_timer+0x3ac/0x520 [ 67.489216][ T4342] hci_request_cancel_all+0xcc/0x300 [ 67.495027][ T4342] hci_dev_do_close+0x4e/0x1030 [ 67.500402][ T4342] hci_rfkill_set_block+0x10a/0x190 [ 67.506127][ T4342] rfkill_set_block+0x1c6/0x420 [ 67.511507][ T4342] rfkill_fop_write+0x458/0x560 [ 67.516887][ T4342] vfs_write+0x300/0xd00 [ 67.521657][ T4342] ksys_write+0x14d/0x250 [ 67.526508][ T4342] do_syscall_64+0x4c/0xa0 [ 67.531454][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.537867][ T4342] [ 67.537867][ T4342] other info that might help us debug this: [ 67.537867][ T4342] [ 67.548090][ T4342] Chain exists of: [ 67.548090][ T4342] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 67.548090][ T4342] [ 67.563815][ T4342] Possible unsafe locking scenario: [ 67.563815][ T4342] [ 67.571261][ T4342] CPU0 CPU1 [ 67.576628][ T4342] ---- ---- [ 67.581991][ T4342] lock(rfkill_global_mutex); [ 67.586755][ T4342] lock(&data->open_mutex); [ 67.593866][ T4342] lock(rfkill_global_mutex); [ 67.601153][ T4342] lock((work_completion)(&hdev->bg_scan_update)); [ 67.607743][ T4342] [ 67.607743][ T4342] *** DEADLOCK *** [ 67.607743][ T4342] [ 67.615882][ T4342] 1 lock held by syz.0.17/4342: [ 67.620729][ T4342] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.630829][ T4342] [ 67.630829][ T4342] stack backtrace: [ 67.636764][ T4342] CPU: 0 PID: 4342 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 67.644740][ T4342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 67.655363][ T4342] Call Trace: [ 67.658641][ T4342] [ 67.661569][ T4342] dump_stack_lvl+0x168/0x230 [ 67.666248][ T4342] ? load_image+0x3b0/0x3b0 [ 67.670755][ T4342] ? show_regs_print_info+0x20/0x20 [ 67.675957][ T4342] ? print_circular_bug+0x12b/0x1a0 [ 67.681163][ T4342] check_noncircular+0x274/0x310 [ 67.686104][ T4342] ? add_chain_block+0x940/0x940 [ 67.691044][ T4342] ? lockdep_lock+0xdc/0x1e0 [ 67.695638][ T4342] ? __lock_acquire+0x12d9/0x7c60 [ 67.700665][ T4342] ? lockdep_lock+0x1e0/0x1e0 [ 67.705352][ T4342] ? mark_lock+0x94/0x320 [ 67.709682][ T4342] ? _find_first_zero_bit+0xce/0xf0 [ 67.714885][ T4342] __lock_acquire+0x2c33/0x7c60 [ 67.719744][ T4342] ? verify_lock_unused+0x140/0x140 [ 67.724947][ T4342] ? verify_lock_unused+0x140/0x140 [ 67.730164][ T4342] lock_acquire+0x197/0x3f0 [ 67.734671][ T4342] ? __flush_work+0xc1/0x1b0 [ 67.739263][ T4342] ? __lock_acquire+0x7c60/0x7c60 [ 67.744292][ T4342] ? read_lock_is_recursive+0x10/0x10 [ 67.749667][ T4342] ? start_flush_work+0x776/0x820 [ 67.754689][ T4342] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.760585][ T4342] ? _raw_spin_unlock+0x40/0x40 [ 67.765445][ T4342] __flush_work+0xdd/0x1b0 [ 67.769863][ T4342] ? __flush_work+0xc1/0x1b0 [ 67.774455][ T4342] ? flush_work+0x20/0x20 [ 67.778786][ T4342] ? try_to_grab_pending+0xf3/0x7e0 [ 67.783992][ T4342] ? lockdep_hardirqs_off+0x70/0x100 [ 67.789278][ T4342] ? mark_lock+0x94/0x320 [ 67.793610][ T4342] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 67.799598][ T4342] ? lock_chain_count+0x20/0x20 [ 67.804448][ T4342] ? mark_lock+0x94/0x320 [ 67.808781][ T4342] ? __cancel_work_timer+0x331/0x520 [ 67.814072][ T4342] __cancel_work_timer+0x3ac/0x520 [ 67.819184][ T4342] ? cancel_work_sync+0x20/0x20 [ 67.824164][ T4342] ? __cancel_work+0x1f4/0x2d0 [ 67.828929][ T4342] ? lockdep_hardirqs_on+0x94/0x140 [ 67.834128][ T4342] ? __cancel_work+0x26f/0x2d0 [ 67.838895][ T4342] ? cancel_work+0x20/0x20 [ 67.843312][ T4342] ? lock_chain_count+0x20/0x20 [ 67.848173][ T4342] hci_request_cancel_all+0xcc/0x300 [ 67.853462][ T4342] hci_dev_do_close+0x4e/0x1030 [ 67.858312][ T4342] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.864210][ T4342] ? _raw_spin_unlock+0x40/0x40 [ 67.869065][ T4342] hci_rfkill_set_block+0x10a/0x190 [ 67.874276][ T4342] ? rcu_lock_release+0x20/0x20 [ 67.879136][ T4342] rfkill_set_block+0x1c6/0x420 [ 67.883994][ T4342] rfkill_fop_write+0x458/0x560 [ 67.888849][ T4342] ? verify_lock_unused+0x140/0x140 [ 67.894063][ T4342] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.899002][ T4342] ? common_file_perm+0x150/0x1c0 [ 67.904030][ T4342] ? fsnotify_perm+0x5d/0x560 [ 67.908712][ T4342] ? security_file_permission+0x75/0xa0 [ 67.914270][ T4342] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.919213][ T4342] vfs_write+0x300/0xd00 [ 67.923469][ T4342] ? file_end_write+0x250/0x250 [ 67.928323][ T4342] ? __context_tracking_exit+0x4c/0x80 [ 67.933798][ T4342] ? __lock_acquire+0x7c60/0x7c60 [ 67.938832][ T4342] ? __fdget_pos+0x1e2/0x370 [ 67.943427][ T4342] ksys_write+0x14d/0x250 [ 67.947761][ T4342] ? __ia32_sys_read+0x80/0x80 [ 67.952533][ T4342] ? lockdep_hardirqs_on+0x94/0x140 [ 67.957736][ T4342] do_syscall_64+0x4c/0xa0 [ 67.962166][ T4342] ? clear_bhb_loop+0x30/0x80 [ 67.966840][ T4342] ? clear_bhb_loop+0x30/0x80 [ 67.971518][ T4342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.977428][ T4342] RIP: 0033:0x7f4b6bda1be9 [ 67.981845][ T4342] 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 [ 68.001597][ T4342] RSP: 002b:00007ffe55d83948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.010020][ T4342] RAX: ffffffffffffffda RBX: 00007f4b6bfc8fa0 RCX: 00007f4b6bda1be9 [ 68.017991][ T4342] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 68.025946][ T4342] RBP: 00007f4b6be24e19 R08: 0000000000000000 R09: 0000000000000000 [ 68.033901][ T4342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.041856][ T4342] R13: 00007f4b6bfc8fa0 R14: 00007f4b6bfc8fa0 R15: 0000000000000003 [ 68.049810][ T4342]