Warning: Permanently added '10.128.1.146' (ED25519) to the list of known hosts. 2026/04/30 06:20:28 parsed 1 programs [ 69.245568][ T4188] cgroup: Unknown subsys name 'net' [ 69.374694][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.873138][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.411543][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.418151][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.601664][ T4207] chnl_net:caif_netlink_parms(): no params data found [ 72.658163][ T4207] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.665784][ T4207] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.674207][ T4207] device bridge_slave_0 entered promiscuous mode [ 72.683718][ T4207] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.691189][ T4207] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.699620][ T4207] device bridge_slave_1 entered promiscuous mode [ 72.724268][ T4207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.735959][ T4207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.760257][ T4207] team0: Port device team_slave_0 added [ 72.770936][ T4207] team0: Port device team_slave_1 added [ 72.789535][ T4207] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.796506][ T4207] 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. [ 72.822641][ T4207] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.837542][ T4207] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.844705][ T4207] 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. [ 72.871464][ T4207] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.906577][ T4207] device hsr_slave_0 entered promiscuous mode [ 72.913675][ T4207] device hsr_slave_1 entered promiscuous mode [ 73.041884][ T4207] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.054930][ T4207] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.066250][ T4207] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.076865][ T4207] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.109887][ T4207] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.117166][ T4207] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.125569][ T4207] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.132748][ T4207] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.195223][ T4207] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.223580][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.235540][ T1652] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.245053][ T1652] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.264974][ T4207] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.284428][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.294475][ T1652] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.301849][ T1652] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.322704][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.331831][ T1652] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.338986][ T1652] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.356549][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.367463][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.393901][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.411602][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.425415][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.440228][ T4207] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.585548][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.595088][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.612437][ T4207] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.633846][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.646395][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.668977][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.678338][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.692176][ T4207] device veth0_vlan entered promiscuous mode [ 73.699595][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.709486][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.723499][ T4207] device veth1_vlan entered promiscuous mode [ 73.751983][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.761032][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.769653][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.779548][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.792331][ T4207] device veth0_macvtap entered promiscuous mode [ 73.804122][ T4207] device veth1_macvtap entered promiscuous mode [ 73.822317][ T4207] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.833350][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.842717][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.851078][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.860553][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.872275][ T4207] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.880176][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.890190][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.903990][ T4207] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.913753][ T4207] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.922773][ T4207] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.932614][ T4207] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.636959][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.875036][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.884686][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.897126][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.916397][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.924734][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.932779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/30 06:20:37 executed programs: 0 [ 76.533899][ T4278] chnl_net:caif_netlink_parms(): no params data found [ 76.566466][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.601194][ T4278] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.608539][ T4278] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.616500][ T4278] device bridge_slave_0 entered promiscuous mode [ 76.626720][ T4278] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.634248][ T4278] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.642643][ T4278] device bridge_slave_1 entered promiscuous mode [ 76.663885][ T4278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.675145][ T4278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.698590][ T4278] team0: Port device team_slave_0 added [ 76.706010][ T4278] team0: Port device team_slave_1 added [ 76.724860][ T4278] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.732042][ T4278] 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. [ 76.758457][ T4278] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.774792][ T4278] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.782097][ T4278] 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. [ 76.808346][ T4278] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.838942][ T4278] device hsr_slave_0 entered promiscuous mode [ 76.845883][ T4278] device hsr_slave_1 entered promiscuous mode [ 76.852880][ T4278] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.861003][ T4278] Cannot create hsr debugfs directory [ 78.539266][ T4215] Bluetooth: hci0: command 0x0409 tx timeout [ 78.624353][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.686670][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.614507][ T4278] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.626726][ T4278] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.638366][ T4278] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.659096][ T4278] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.724437][ T4278] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.737492][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.746240][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.757274][ T4278] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.770309][ T144] device hsr_slave_0 left promiscuous mode [ 79.777298][ T144] device hsr_slave_1 left promiscuous mode [ 79.786338][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.793950][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.803475][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.811053][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.819550][ T144] device bridge_slave_1 left promiscuous mode [ 79.826647][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.841792][ T144] device bridge_slave_0 left promiscuous mode [ 79.849030][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.868111][ T144] device veth1_macvtap left promiscuous mode [ 79.874483][ T144] device veth0_macvtap left promiscuous mode [ 79.881440][ T144] device veth1_vlan left promiscuous mode [ 79.887427][ T144] device veth0_vlan left promiscuous mode [ 80.065604][ T144] team0 (unregistering): Port device team_slave_1 removed [ 80.081565][ T144] team0 (unregistering): Port device team_slave_0 removed [ 80.095203][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.110764][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.170275][ T144] bond0 (unregistering): Released all slaves [ 80.223754][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.233109][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.242046][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.249266][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.257198][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.266254][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.274922][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.282071][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.304047][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.313254][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.330901][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.350239][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.360867][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.371235][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.381201][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.390507][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.409522][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.424707][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.440135][ T4278] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.452139][ T4278] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.461279][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.470377][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.574357][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.582183][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.604949][ T4278] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.612318][ T3520] Bluetooth: hci0: command 0x041b tx timeout [ 80.635196][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.646576][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.669905][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.679022][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.690662][ T4278] device veth0_vlan entered promiscuous mode [ 80.699425][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.709642][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.724853][ T4278] device veth1_vlan entered promiscuous mode [ 80.748770][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.757641][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.772115][ T4278] device veth0_macvtap entered promiscuous mode [ 80.779908][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.789699][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.800678][ T4278] device veth1_macvtap entered promiscuous mode [ 80.809497][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.819513][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.839808][ T4278] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.848891][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.858707][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.871851][ T4278] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.880488][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.890389][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.902301][ T4278] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.912262][ T4278] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.922861][ T4278] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.936636][ T4278] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.015652][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.026447][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.040139][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.063813][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.073945][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.083195][ T1652] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.294641][ T4323] [ 81.297077][ T4323] ====================================================== [ 81.304127][ T4323] WARNING: possible circular locking dependency detected [ 81.311187][ T4323] syzkaller #0 Not tainted [ 81.315630][ T4323] ------------------------------------------------------ [ 81.322683][ T4323] syz.0.17/4323 is trying to acquire lock: [ 81.328603][ T4323] ffff88807836cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.339719][ T4323] [ 81.339719][ T4323] but task is already holding lock: [ 81.347118][ T4323] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.356931][ T4323] [ 81.356931][ T4323] which lock already depends on the new lock. [ 81.356931][ T4323] [ 81.367450][ T4323] [ 81.367450][ T4323] the existing dependency chain (in reverse order) is: [ 81.376501][ T4323] [ 81.376501][ T4323] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.384535][ T4323] __mutex_lock_common+0x1e3/0x2400 [ 81.390325][ T4323] mutex_lock_nested+0x17/0x20 [ 81.395651][ T4323] rfkill_register+0x33/0x980 [ 81.400887][ T4323] hci_register_dev+0x452/0x970 [ 81.406296][ T4323] vhci_create_device+0x32c/0x5c0 [ 81.411885][ T4323] vhci_write+0x391/0x450 [ 81.416787][ T4323] vfs_write+0x745/0xd60 [ 81.421594][ T4323] ksys_write+0x152/0x260 [ 81.426481][ T4323] do_syscall_64+0x4c/0xa0 [ 81.431457][ T4323] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.438010][ T4323] [ 81.438010][ T4323] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.445866][ T4323] __mutex_lock_common+0x1e3/0x2400 [ 81.451636][ T4323] mutex_lock_nested+0x17/0x20 [ 81.456964][ T4323] vhci_send_frame+0x88/0x100 [ 81.462207][ T4323] hci_send_frame+0x1a9/0x2e0 [ 81.467450][ T4323] hci_tx_work+0x9f9/0x1710 [ 81.472516][ T4323] process_one_work+0x85f/0x1010 [ 81.478011][ T4323] worker_thread+0xaa6/0x1290 [ 81.483244][ T4323] kthread+0x436/0x520 [ 81.487878][ T4323] ret_from_fork+0x1f/0x30 [ 81.492953][ T4323] [ 81.492953][ T4323] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.502208][ T4323] __flush_work+0x116/0x210 [ 81.507302][ T4323] hci_dev_do_close+0x1e7/0x1030 [ 81.512798][ T4323] hci_unregister_dev+0x2d7/0x580 [ 81.518375][ T4323] vhci_release+0x73/0xc0 [ 81.523265][ T4323] __fput+0x234/0x930 [ 81.527834][ T4323] task_work_run+0x125/0x1a0 [ 81.532984][ T4323] do_exit+0x626/0x20c0 [ 81.537694][ T4323] do_group_exit+0x12e/0x300 [ 81.542839][ T4323] get_signal+0x6ca/0x12c0 [ 81.547903][ T4323] arch_do_signal_or_restart+0xe7/0x12c0 [ 81.554359][ T4323] exit_to_user_mode_loop+0x9e/0x130 [ 81.560197][ T4323] exit_to_user_mode_prepare+0xee/0x180 [ 81.566296][ T4323] syscall_exit_to_user_mode+0x16/0x40 [ 81.572313][ T4323] do_syscall_64+0x58/0xa0 [ 81.577298][ T4323] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.583757][ T4323] [ 81.583757][ T4323] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.591437][ T4323] __mutex_lock_common+0x1e3/0x2400 [ 81.597205][ T4323] mutex_lock_nested+0x17/0x20 [ 81.602537][ T4323] bg_scan_update+0x44/0x3b0 [ 81.607729][ T4323] process_one_work+0x85f/0x1010 [ 81.613317][ T4323] worker_thread+0xaa6/0x1290 [ 81.618551][ T4323] kthread+0x436/0x520 [ 81.623173][ T4323] ret_from_fork+0x1f/0x30 [ 81.628150][ T4323] [ 81.628150][ T4323] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.638005][ T4323] __lock_acquire+0x2c42/0x7d10 [ 81.643425][ T4323] lock_acquire+0x19e/0x400 [ 81.648575][ T4323] __flush_work+0x116/0x210 [ 81.653629][ T4323] __cancel_work_timer+0x3f4/0x560 [ 81.659300][ T4323] hci_request_cancel_all+0xcc/0x300 [ 81.665146][ T4323] hci_dev_do_close+0x4e/0x1030 [ 81.670586][ T4323] hci_rfkill_set_block+0x10a/0x190 [ 81.676339][ T4323] rfkill_set_block+0x1c9/0x3d0 [ 81.681746][ T4323] rfkill_fop_write+0x452/0x560 [ 81.687145][ T4323] vfs_write+0x30b/0xd60 [ 81.691932][ T4323] ksys_write+0x152/0x260 [ 81.696808][ T4323] do_syscall_64+0x4c/0xa0 [ 81.701849][ T4323] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.708310][ T4323] [ 81.708310][ T4323] other info that might help us debug this: [ 81.708310][ T4323] [ 81.718588][ T4323] Chain exists of: [ 81.718588][ T4323] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 81.718588][ T4323] [ 81.734449][ T4323] Possible unsafe locking scenario: [ 81.734449][ T4323] [ 81.742016][ T4323] CPU0 CPU1 [ 81.747404][ T4323] ---- ---- [ 81.752793][ T4323] lock(rfkill_global_mutex); [ 81.757615][ T4323] lock(&data->open_mutex); [ 81.764772][ T4323] lock(rfkill_global_mutex); [ 81.772088][ T4323] lock((work_completion)(&hdev->bg_scan_update)); [ 81.778796][ T4323] [ 81.778796][ T4323] *** DEADLOCK *** [ 81.778796][ T4323] [ 81.786969][ T4323] 1 lock held by syz.0.17/4323: [ 81.792039][ T4323] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.802178][ T4323] [ 81.802178][ T4323] stack backtrace: [ 81.808111][ T4323] CPU: 1 PID: 4323 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.815391][ T4323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 81.825502][ T4323] Call Trace: [ 81.828811][ T4323] [ 81.831866][ T4323] dump_stack_lvl+0x188/0x250 [ 81.836577][ T4323] ? load_image+0x400/0x400 [ 81.841113][ T4323] ? show_regs_print_info+0x20/0x20 [ 81.846347][ T4323] ? print_circular_bug+0x12b/0x1a0 [ 81.851664][ T4323] check_noncircular+0x296/0x330 [ 81.856627][ T4323] ? look_up_lock_class+0x71/0x110 [ 81.861785][ T4323] ? add_chain_block+0x940/0x940 [ 81.866749][ T4323] ? lockdep_lock+0xf1/0x1f0 [ 81.871390][ T4323] ? __lock_acquire+0x12e8/0x7d10 [ 81.876450][ T4323] ? mark_lock+0x94/0x320 [ 81.880810][ T4323] __lock_acquire+0x2c42/0x7d10 [ 81.885736][ T4323] ? verify_lock_unused+0x140/0x140 [ 81.891014][ T4323] ? verify_lock_unused+0x140/0x140 [ 81.896421][ T4323] ? mark_lock+0x94/0x320 [ 81.900786][ T4323] lock_acquire+0x19e/0x400 [ 81.905327][ T4323] ? __flush_work+0xfa/0x210 [ 81.909943][ T4323] ? __lock_acquire+0x7d10/0x7d10 [ 81.915003][ T4323] ? read_lock_is_recursive+0x10/0x10 [ 81.920406][ T4323] ? start_flush_work+0x776/0x820 [ 81.925460][ T4323] __flush_work+0x116/0x210 [ 81.930079][ T4323] ? __flush_work+0xfa/0x210 [ 81.934692][ T4323] ? flush_work+0x20/0x20 [ 81.939045][ T4323] ? try_to_grab_pending+0xfa/0x7f0 [ 81.944269][ T4323] ? mark_lock+0x94/0x320 [ 81.948629][ T4323] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 81.954660][ T4323] ? lock_chain_count+0x20/0x20 [ 81.959578][ T4323] ? mark_lock+0x94/0x320 [ 81.963943][ T4323] ? __cancel_work_timer+0x36a/0x560 [ 81.969254][ T4323] __cancel_work_timer+0x3f4/0x560 [ 81.974399][ T4323] ? cancel_work_sync+0x20/0x20 [ 81.979272][ T4323] ? __cancel_work+0x1f9/0x2e0 [ 81.984062][ T4323] ? lockdep_hardirqs_on+0x94/0x140 [ 81.989304][ T4323] ? __cancel_work+0x27b/0x2e0 [ 81.994103][ T4323] ? cancel_work+0x20/0x20 [ 81.998548][ T4323] ? lock_chain_count+0x20/0x20 [ 82.003425][ T4323] hci_request_cancel_all+0xcc/0x300 [ 82.008746][ T4323] hci_dev_do_close+0x4e/0x1030 [ 82.013623][ T4323] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.019547][ T4323] ? _raw_spin_unlock+0x40/0x40 [ 82.024438][ T4323] hci_rfkill_set_block+0x10a/0x190 [ 82.029913][ T4323] ? rcu_lock_release+0x20/0x20 [ 82.034810][ T4323] rfkill_set_block+0x1c9/0x3d0 [ 82.039781][ T4323] rfkill_fop_write+0x452/0x560 [ 82.044676][ T4323] ? rfkill_fop_read+0x520/0x520 [ 82.049654][ T4323] ? common_file_perm+0x140/0x1c0 [ 82.054722][ T4323] ? fsnotify_perm+0x5d/0x560 [ 82.059437][ T4323] ? security_file_permission+0x75/0xa0 [ 82.065226][ T4323] ? rfkill_fop_read+0x520/0x520 [ 82.070200][ T4323] vfs_write+0x30b/0xd60 [ 82.074481][ T4323] ? file_end_write+0x250/0x250 [ 82.079359][ T4323] ? __context_tracking_exit+0x4c/0x80 [ 82.084851][ T4323] ? __lock_acquire+0x7d10/0x7d10 [ 82.089911][ T4323] ? __fdget_pos+0x1e2/0x370 [ 82.094541][ T4323] ksys_write+0x152/0x260 [ 82.098909][ T4323] ? __ia32_sys_read+0x80/0x80 [ 82.103729][ T4323] ? lockdep_hardirqs_on+0x94/0x140 [ 82.108970][ T4323] do_syscall_64+0x4c/0xa0 [ 82.113419][ T4323] ? clear_bhb_loop+0x30/0x80 [ 82.118123][ T4323] ? clear_bhb_loop+0x30/0x80 [ 82.122834][ T4323] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.128769][ T4323] RIP: 0033:0x7f61371a4dd9 [ 82.133224][ T4323] 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 [ 82.152865][ T4323] RSP: 002b:00007ffea7ac6258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.161313][ T4323] RAX: ffffffffffffffda RBX: 00007f613741dfa0 RCX: 00007f61371a4dd9 [ 82.169314][ T4323] RDX: 0000000000000008 RSI: 0000200000000440 RDI: 0000000000000003 [ 82.177315][ T4323] RBP: 00007f613723ad69 R08: 0000000000000000 R09: 0000000000000000 [ 82.185331][ T4323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.193433][ T4323] R13: 00007f613741dfac R14: 00007f613741dfa0 R15: 00007f613741dfa0 [ 82.201450][ T4323]