Warning: Permanently added '10.128.1.93' (ED25519) to the list of known hosts. 2026/05/24 23:04:07 parsed 1 programs [ 68.141026][ T4200] cgroup: Unknown subsys name 'net' [ 68.285675][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.809971][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.352429][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.359327][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.496077][ T4238] chnl_net:caif_netlink_parms(): no params data found [ 72.565961][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.575174][ T4238] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.584080][ T4238] device bridge_slave_0 entered promiscuous mode [ 72.595780][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.603325][ T4238] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.613096][ T4238] device bridge_slave_1 entered promiscuous mode [ 72.642535][ T4238] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.654518][ T4238] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.686514][ T4238] team0: Port device team_slave_0 added [ 72.696082][ T4238] team0: Port device team_slave_1 added [ 72.722738][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.731141][ T4238] 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. [ 72.758936][ T4238] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.774298][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.782898][ T4238] 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. [ 72.812034][ T4238] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.854977][ T4238] device hsr_slave_0 entered promiscuous mode [ 72.863411][ T4238] device hsr_slave_1 entered promiscuous mode [ 73.015056][ T4238] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.028965][ T4238] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.039863][ T4238] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.050678][ T4238] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.082844][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.090199][ T4238] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.098543][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.105658][ T4238] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.173420][ T4238] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.187391][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.199579][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.208885][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.217416][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.234285][ T4238] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.246676][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.257450][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.265047][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.284543][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.293401][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.300558][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.320511][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.341364][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.350908][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.361463][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.375184][ T4238] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.388854][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.398067][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.504839][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.520365][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.562362][ T4238] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.583779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.603986][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.628263][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.637292][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.653769][ T4238] device veth0_vlan entered promiscuous mode [ 73.669796][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.678809][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.696795][ T4238] device veth1_vlan entered promiscuous mode [ 73.729204][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.738490][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.747337][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.757373][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.770628][ T4238] device veth0_macvtap entered promiscuous mode [ 73.781086][ T4238] device veth1_macvtap entered promiscuous mode [ 73.796614][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.804690][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.813673][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.821912][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.831455][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.849047][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.856441][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.865670][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.878471][ T4238] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.887480][ T4238] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.896917][ T4238] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.906055][ T4238] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.021127][ T4238] syz-executor (4238) used greatest stack depth: 20368 bytes left [ 74.476992][ T4247] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.487479][ T4247] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.501538][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.532594][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.540790][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.550514][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/24 23:04:18 executed programs: 0 [ 76.076289][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 76.131669][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.139097][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.147289][ T4301] device bridge_slave_0 entered promiscuous mode [ 76.157026][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.165402][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.174203][ T4301] device bridge_slave_1 entered promiscuous mode [ 76.200148][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.212717][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.241009][ T4301] team0: Port device team_slave_0 added [ 76.252420][ T4301] team0: Port device team_slave_1 added [ 76.274954][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.282999][ T4301] 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. [ 76.309598][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.324044][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.331257][ T4301] 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. [ 76.357313][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.390137][ T4301] device hsr_slave_0 entered promiscuous mode [ 76.397525][ T4301] device hsr_slave_1 entered promiscuous mode [ 76.404543][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.413478][ T4301] Cannot create hsr debugfs directory [ 76.453950][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.988750][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 79.645558][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.685465][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.748418][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.068378][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 80.595129][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.636505][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.645653][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.655336][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.760653][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.773734][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.782474][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.793524][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.826530][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.835994][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.844946][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.852490][ T4247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.861866][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.890253][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.899313][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.910115][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.917191][ T4247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.927208][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.959270][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.971413][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.983035][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.992031][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.004774][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.013824][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.046424][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.055168][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.067691][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.076404][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.088475][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.237953][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.245478][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.259707][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.299698][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.308771][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.326904][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.335855][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.344822][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.352971][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.364001][ T4301] device veth0_vlan entered promiscuous mode [ 81.382975][ T4301] device veth1_vlan entered promiscuous mode [ 81.415493][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.424261][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.433903][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.442845][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.455468][ T4301] device veth0_macvtap entered promiscuous mode [ 81.469270][ T4301] device veth1_macvtap entered promiscuous mode [ 81.487433][ T144] device hsr_slave_0 left promiscuous mode [ 81.495353][ T144] device hsr_slave_1 left promiscuous mode [ 81.503080][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.511055][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.521712][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.529455][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.537188][ T144] device bridge_slave_1 left promiscuous mode [ 81.544730][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.561521][ T144] device bridge_slave_0 left promiscuous mode [ 81.568202][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.586475][ T144] device veth1_macvtap left promiscuous mode [ 81.593047][ T144] device veth0_macvtap left promiscuous mode [ 81.599423][ T144] device veth1_vlan left promiscuous mode [ 81.605386][ T144] device veth0_vlan left promiscuous mode [ 81.790918][ T144] team0 (unregistering): Port device team_slave_1 removed [ 81.804854][ T144] team0 (unregistering): Port device team_slave_0 removed [ 81.822133][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.842167][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.902155][ T144] bond0 (unregistering): Released all slaves [ 81.977309][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.989295][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.998212][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.007184][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.015881][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.030348][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.038517][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.048212][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.063320][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.072916][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.082513][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.091461][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.150762][ T4261] Bluetooth: hci0: command 0x040f tx timeout [ 82.160629][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.176976][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.194706][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.222435][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.231680][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.241931][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.356119][ T4353] [ 82.358513][ T4353] ====================================================== [ 82.365562][ T4353] WARNING: possible circular locking dependency detected [ 82.372882][ T4353] syzkaller #0 Not tainted [ 82.377328][ T4353] ------------------------------------------------------ [ 82.384372][ T4353] syz.0.17/4353 is trying to acquire lock: [ 82.390206][ T4353] ffff88801a3d8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.401453][ T4353] [ 82.401453][ T4353] but task is already holding lock: [ 82.408890][ T4353] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.418704][ T4353] [ 82.418704][ T4353] which lock already depends on the new lock. [ 82.418704][ T4353] [ 82.429317][ T4353] [ 82.429317][ T4353] the existing dependency chain (in reverse order) is: [ 82.438364][ T4353] [ 82.438364][ T4353] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.446393][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 82.452155][ T4353] mutex_lock_nested+0x17/0x20 [ 82.457481][ T4353] rfkill_register+0x33/0x980 [ 82.462717][ T4353] hci_register_dev+0x452/0x970 [ 82.468126][ T4353] vhci_create_device+0x32c/0x5c0 [ 82.473719][ T4353] vhci_write+0x391/0x450 [ 82.478603][ T4353] vfs_write+0x745/0xd60 [ 82.483394][ T4353] ksys_write+0x152/0x260 [ 82.488274][ T4353] do_syscall_64+0x4c/0xa0 [ 82.493248][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.499706][ T4353] [ 82.499706][ T4353] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.507558][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 82.513324][ T4353] mutex_lock_nested+0x17/0x20 [ 82.518649][ T4353] vhci_send_frame+0x88/0x100 [ 82.524016][ T4353] hci_send_frame+0x1a9/0x2e0 [ 82.529255][ T4353] hci_tx_work+0x9f9/0x1710 [ 82.534326][ T4353] process_one_work+0x85f/0x1010 [ 82.539820][ T4353] worker_thread+0xaa6/0x1290 [ 82.545224][ T4353] kthread+0x436/0x520 [ 82.549862][ T4353] ret_from_fork+0x1f/0x30 [ 82.554837][ T4353] [ 82.554837][ T4353] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.564083][ T4353] __flush_work+0x116/0x210 [ 82.569246][ T4353] hci_dev_do_close+0x1e7/0x1030 [ 82.574741][ T4353] hci_unregister_dev+0x2d7/0x580 [ 82.580321][ T4353] vhci_release+0x73/0xc0 [ 82.585203][ T4353] __fput+0x234/0x930 [ 82.589747][ T4353] task_work_run+0x125/0x1a0 [ 82.594897][ T4353] do_exit+0x626/0x20c0 [ 82.599608][ T4353] do_group_exit+0x12e/0x300 [ 82.604742][ T4353] get_signal+0x6d6/0x12d0 [ 82.609705][ T4353] arch_do_signal_or_restart+0xe7/0x12c0 [ 82.615895][ T4353] exit_to_user_mode_loop+0x9e/0x130 [ 82.621726][ T4353] exit_to_user_mode_prepare+0xee/0x180 [ 82.627815][ T4353] syscall_exit_to_user_mode+0x16/0x40 [ 82.633824][ T4353] do_syscall_64+0x58/0xa0 [ 82.638788][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.645238][ T4353] [ 82.645238][ T4353] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.652928][ T4353] __mutex_lock_common+0x1e3/0x2400 [ 82.658691][ T4353] mutex_lock_nested+0x17/0x20 [ 82.664017][ T4353] bg_scan_update+0x44/0x3b0 [ 82.669165][ T4353] process_one_work+0x85f/0x1010 [ 82.674660][ T4353] worker_thread+0xaa6/0x1290 [ 82.679898][ T4353] kthread+0x436/0x520 [ 82.684516][ T4353] ret_from_fork+0x1f/0x30 [ 82.689488][ T4353] [ 82.689488][ T4353] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.699341][ T4353] __lock_acquire+0x2c42/0x7d10 [ 82.704752][ T4353] lock_acquire+0x19e/0x400 [ 82.709817][ T4353] __flush_work+0x116/0x210 [ 82.714877][ T4353] __cancel_work_timer+0x3f4/0x560 [ 82.720551][ T4353] hci_request_cancel_all+0xcc/0x300 [ 82.726393][ T4353] hci_dev_do_close+0x4e/0x1030 [ 82.731800][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 82.737560][ T4353] rfkill_set_block+0x1c9/0x3d0 [ 82.743059][ T4353] rfkill_fop_write+0x452/0x560 [ 82.748468][ T4353] vfs_write+0x30b/0xd60 [ 82.753269][ T4353] ksys_write+0x152/0x260 [ 82.758150][ T4353] do_syscall_64+0x4c/0xa0 [ 82.763116][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.769561][ T4353] [ 82.769561][ T4353] other info that might help us debug this: [ 82.769561][ T4353] [ 82.779815][ T4353] Chain exists of: [ 82.779815][ T4353] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.779815][ T4353] [ 82.795583][ T4353] Possible unsafe locking scenario: [ 82.795583][ T4353] [ 82.803054][ T4353] CPU0 CPU1 [ 82.808455][ T4353] ---- ---- [ 82.814818][ T4353] lock(rfkill_global_mutex); [ 82.819623][ T4353] lock(&data->open_mutex); [ 82.826766][ T4353] lock(rfkill_global_mutex); [ 82.834185][ T4353] lock((work_completion)(&hdev->bg_scan_update)); [ 82.840815][ T4353] [ 82.840815][ T4353] *** DEADLOCK *** [ 82.840815][ T4353] [ 82.848982][ T4353] 1 lock held by syz.0.17/4353: [ 82.853855][ T4353] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.863998][ T4353] [ 82.863998][ T4353] stack backtrace: [ 82.869934][ T4353] CPU: 1 PID: 4353 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.877167][ T4353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.887264][ T4353] Call Trace: [ 82.890581][ T4353] [ 82.893534][ T4353] dump_stack_lvl+0x188/0x250 [ 82.898247][ T4353] ? load_image+0x400/0x400 [ 82.902783][ T4353] ? show_regs_print_info+0x20/0x20 [ 82.908023][ T4353] ? print_circular_bug+0x12b/0x1a0 [ 82.913251][ T4353] check_noncircular+0x296/0x330 [ 82.918225][ T4353] ? look_up_lock_class+0x71/0x110 [ 82.923384][ T4353] ? add_chain_block+0x940/0x940 [ 82.928487][ T4353] ? lockdep_lock+0xf1/0x1f0 [ 82.933132][ T4353] ? __lock_acquire+0x12e8/0x7d10 [ 82.938244][ T4353] ? mark_lock+0x94/0x320 [ 82.942644][ T4353] ? _find_first_zero_bit+0xce/0xf0 [ 82.949518][ T4353] __lock_acquire+0x2c42/0x7d10 [ 82.954429][ T4353] ? verify_lock_unused+0x140/0x140 [ 82.959696][ T4353] ? verify_lock_unused+0x140/0x140 [ 82.965204][ T4353] ? mark_lock+0x94/0x320 [ 82.970019][ T4353] lock_acquire+0x19e/0x400 [ 82.974557][ T4353] ? __flush_work+0xfa/0x210 [ 82.979189][ T4353] ? __lock_acquire+0x7d10/0x7d10 [ 82.984254][ T4353] ? read_lock_is_recursive+0x10/0x10 [ 82.989760][ T4353] ? start_flush_work+0x776/0x820 [ 82.994859][ T4353] __flush_work+0x116/0x210 [ 82.999402][ T4353] ? __flush_work+0xfa/0x210 [ 83.004029][ T4353] ? flush_work+0x20/0x20 [ 83.008490][ T4353] ? try_to_grab_pending+0xfa/0x7f0 [ 83.013895][ T4353] ? mark_lock+0x94/0x320 [ 83.018257][ T4353] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 83.024291][ T4353] ? lock_chain_count+0x20/0x20 [ 83.029184][ T4353] ? mark_lock+0x94/0x320 [ 83.033550][ T4353] ? __cancel_work_timer+0x36a/0x560 [ 83.038871][ T4353] __cancel_work_timer+0x3f4/0x560 [ 83.044025][ T4353] ? cancel_work_sync+0x20/0x20 [ 83.048916][ T4353] ? __cancel_work+0x1f9/0x2e0 [ 83.053886][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 83.059126][ T4353] ? __cancel_work+0x27b/0x2e0 [ 83.063923][ T4353] ? cancel_work+0x20/0x20 [ 83.068664][ T4353] ? lock_chain_count+0x20/0x20 [ 83.073568][ T4353] hci_request_cancel_all+0xcc/0x300 [ 83.078896][ T4353] hci_dev_do_close+0x4e/0x1030 [ 83.083803][ T4353] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.089728][ T4353] ? _raw_spin_unlock+0x40/0x40 [ 83.094632][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 83.099871][ T4353] ? rcu_lock_release+0x20/0x20 [ 83.104778][ T4353] rfkill_set_block+0x1c9/0x3d0 [ 83.109689][ T4353] rfkill_fop_write+0x452/0x560 [ 83.114583][ T4353] ? rfkill_fop_read+0x520/0x520 [ 83.121551][ T4353] ? common_file_perm+0xc0/0x1c0 [ 83.126530][ T4353] ? fsnotify_perm+0x5d/0x560 [ 83.131246][ T4353] ? security_file_permission+0x75/0xa0 [ 83.136832][ T4353] ? rfkill_fop_read+0x520/0x520 [ 83.141809][ T4353] vfs_write+0x30b/0xd60 [ 83.146090][ T4353] ? file_end_write+0x250/0x250 [ 83.151097][ T4353] ? __context_tracking_exit+0x4c/0x80 [ 83.157536][ T4353] ? __lock_acquire+0x7d10/0x7d10 [ 83.162873][ T4353] ? __fdget_pos+0x1e2/0x370 [ 83.167513][ T4353] ksys_write+0x152/0x260 [ 83.171882][ T4353] ? __ia32_sys_read+0x80/0x80 [ 83.176794][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 83.182039][ T4353] do_syscall_64+0x4c/0xa0 [ 83.186493][ T4353] ? clear_bhb_loop+0x30/0x80 [ 83.191297][ T4353] ? clear_bhb_loop+0x30/0x80 [ 83.196009][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.202041][ T4353] RIP: 0033:0x7f8b41a15e59 [ 83.206499][ T4353] 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 [ 83.226139][ T4353] RSP: 002b:00007ffe930f07b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.234592][ T4353] RAX: ffffffffffffffda RBX: 00007f8b41c8efa0 RCX: 00007f8b41a15e59 [ 83.242684][ T4353] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 83.250694][ T4353] RBP: 00007f8b41aabd6f R08: 0000000000000000 R09: 0000000000000000 [ 83.258831][ T4353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.267812][ T4353] R13: 00007f8b41c8efac R14: 00007f8b41c8efa0 R15: 00007f8b41c8efa0 [ 83.275823][ T4353]