Warning: Permanently added '10.128.1.13' (ED25519) to the list of known hosts. 2025/10/12 14:15:38 parsed 1 programs [ 69.332873][ T4188] cgroup: Unknown subsys name 'net' [ 69.463802][ T4188] cgroup: Unknown subsys name 'rlimit' [ 70.962420][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.289849][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.296429][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.405562][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.418245][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.435467][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.436658][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.449786][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.459632][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.590752][ T4250] chnl_net:caif_netlink_parms(): no params data found [ 74.678097][ T4250] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.685183][ T4250] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.698131][ T4250] device bridge_slave_0 entered promiscuous mode [ 74.711444][ T4250] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.723238][ T4250] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.731837][ T4250] device bridge_slave_1 entered promiscuous mode [ 74.829243][ T4250] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.841658][ T4250] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.887281][ T4250] team0: Port device team_slave_0 added [ 74.895108][ T4250] team0: Port device team_slave_1 added [ 74.914148][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.921693][ T4250] 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. [ 74.948115][ T4250] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.981718][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.988831][ T4250] 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. [ 75.014914][ T4250] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.069748][ T4250] device hsr_slave_0 entered promiscuous mode [ 75.076517][ T4250] device hsr_slave_1 entered promiscuous mode [ 75.196002][ T4250] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.207455][ T4250] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.217886][ T4250] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.228687][ T4250] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.275198][ T4250] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.282472][ T4250] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.290700][ T4250] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.298571][ T4250] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.368471][ T4250] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.382636][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.392126][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.401665][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.415252][ T4250] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.427255][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.435716][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.442842][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.454583][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.463684][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.472391][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.479512][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.490867][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.525424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.538717][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.548721][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.560206][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.573495][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.583674][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.618881][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.628166][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.641795][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.651110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.681051][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.810920][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.818551][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.831976][ T4250] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.861838][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.872880][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.900099][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.909979][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.923895][ T4250] device veth0_vlan entered promiscuous mode [ 75.933443][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.943259][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.955891][ T4250] device veth1_vlan entered promiscuous mode [ 75.983262][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.992341][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.001479][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.013519][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.027587][ T4250] device veth0_macvtap entered promiscuous mode [ 76.038134][ T4250] device veth1_macvtap entered promiscuous mode [ 76.060302][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.069270][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.079126][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.088123][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.098904][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.110978][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.121079][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.130962][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.143449][ T4250] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.153748][ T4250] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.164005][ T4250] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.173550][ T4250] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.323587][ T4250] syz-executor (4250) used greatest stack depth: 20448 bytes left 2025/10/12 14:15:48 executed programs: 0 [ 77.494381][ T155] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.601262][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 77.648278][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.655443][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.663412][ T4299] device bridge_slave_0 entered promiscuous mode [ 77.672045][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.679450][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.687581][ T4299] device bridge_slave_1 entered promiscuous mode [ 77.712256][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.723311][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.749588][ T4299] team0: Port device team_slave_0 added [ 77.757259][ T4299] team0: Port device team_slave_1 added [ 77.783611][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.790864][ T4299] 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. [ 77.817165][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.829619][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.836583][ T4299] 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. [ 77.863361][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.896962][ T4299] device hsr_slave_0 entered promiscuous mode [ 77.904028][ T4299] device hsr_slave_1 entered promiscuous mode [ 77.910862][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.919794][ T4299] Cannot create hsr debugfs directory [ 79.528022][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 80.723594][ T155] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.607079][ T4269] Bluetooth: hci0: command 0x041b tx timeout [ 81.694725][ T155] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.760903][ T155] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.708756][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.718879][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.729292][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.750270][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.812674][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.825211][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.833779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.848263][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.861889][ T155] device hsr_slave_0 left promiscuous mode [ 82.868484][ T155] device hsr_slave_1 left promiscuous mode [ 82.875077][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.883129][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.891535][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.899071][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.907055][ T155] device bridge_slave_1 left promiscuous mode [ 82.914064][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.927849][ T155] device bridge_slave_0 left promiscuous mode [ 82.934163][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.952445][ T155] device veth1_macvtap left promiscuous mode [ 82.958878][ T155] device veth0_macvtap left promiscuous mode [ 82.964950][ T155] device veth1_vlan left promiscuous mode [ 82.971143][ T155] device veth0_vlan left promiscuous mode [ 83.140511][ T155] team0 (unregistering): Port device team_slave_1 removed [ 83.156264][ T155] team0 (unregistering): Port device team_slave_0 removed [ 83.170026][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.183597][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.245426][ T155] bond0 (unregistering): Released all slaves [ 83.312458][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.321339][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.330504][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.337645][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.348151][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.367969][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.377334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.385789][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.392921][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.401552][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.410396][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.419764][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.428968][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.438255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.446917][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.455441][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.469386][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.478041][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.491698][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.502223][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.520088][ T4299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.626137][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.634363][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.651045][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.668493][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.678108][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.687030][ T4269] Bluetooth: hci0: command 0x040f tx timeout [ 83.705084][ T4299] device veth0_vlan entered promiscuous mode [ 83.712446][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.721073][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.731321][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.739689][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.753646][ T4299] device veth1_vlan entered promiscuous mode [ 83.775844][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.784282][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.794962][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.805043][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.816639][ T4299] device veth0_macvtap entered promiscuous mode [ 83.838424][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.850235][ T4299] device veth1_macvtap entered promiscuous mode [ 83.870432][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.878377][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.888051][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.902212][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.911416][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.920759][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.932137][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.941255][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.950311][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.959180][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.036589][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.050220][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.068576][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.083021][ T4280] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.099516][ T4280] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.111942][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.258259][ T4357] [ 84.260649][ T4357] ====================================================== [ 84.267680][ T4357] WARNING: possible circular locking dependency detected [ 84.274724][ T4357] syzkaller #0 Not tainted [ 84.279164][ T4357] ------------------------------------------------------ [ 84.286191][ T4357] syz.0.17/4357 is trying to acquire lock: [ 84.292012][ T4357] ffff888024f40c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 84.303112][ T4357] [ 84.303112][ T4357] but task is already holding lock: [ 84.310497][ T4357] ffffffff8d4c0768 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.320286][ T4357] [ 84.320286][ T4357] which lock already depends on the new lock. [ 84.320286][ T4357] [ 84.330710][ T4357] [ 84.330710][ T4357] the existing dependency chain (in reverse order) is: [ 84.339740][ T4357] [ 84.339740][ T4357] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.347760][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 84.353539][ T4357] mutex_lock_nested+0x17/0x20 [ 84.358843][ T4357] rfkill_register+0x33/0x8a0 [ 84.364060][ T4357] hci_register_dev+0x452/0x970 [ 84.369450][ T4357] vhci_create_device+0x32c/0x5c0 [ 84.375026][ T4357] vhci_write+0x391/0x450 [ 84.379923][ T4357] vfs_write+0x712/0xd00 [ 84.384737][ T4357] ksys_write+0x14d/0x250 [ 84.389602][ T4357] do_syscall_64+0x4c/0xa0 [ 84.394555][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.401085][ T4357] [ 84.401085][ T4357] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.408940][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 84.414688][ T4357] mutex_lock_nested+0x17/0x20 [ 84.420009][ T4357] vhci_send_frame+0x88/0x100 [ 84.425232][ T4357] hci_send_frame+0x1a9/0x2e0 [ 84.430456][ T4357] hci_tx_work+0x9f9/0x1710 [ 84.435505][ T4357] process_one_work+0x863/0x1000 [ 84.440996][ T4357] worker_thread+0xaa8/0x12a0 [ 84.446220][ T4357] kthread+0x436/0x520 [ 84.450823][ T4357] ret_from_fork+0x1f/0x30 [ 84.455786][ T4357] [ 84.455786][ T4357] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.465021][ T4357] __flush_work+0xdd/0x1b0 [ 84.469987][ T4357] hci_dev_do_close+0x1e7/0x1030 [ 84.475473][ T4357] hci_unregister_dev+0x2d7/0x580 [ 84.481050][ T4357] vhci_release+0x73/0xc0 [ 84.485925][ T4357] __fput+0x234/0x930 [ 84.490460][ T4357] task_work_run+0x125/0x1a0 [ 84.495607][ T4357] do_exit+0x61e/0x20a0 [ 84.500310][ T4357] do_group_exit+0x12e/0x300 [ 84.505445][ T4357] get_signal+0x6ca/0x12c0 [ 84.510663][ T4357] arch_do_signal_or_restart+0xc1/0x1300 [ 84.516844][ T4357] exit_to_user_mode_loop+0x9e/0x130 [ 84.522674][ T4357] exit_to_user_mode_prepare+0xee/0x180 [ 84.528760][ T4357] syscall_exit_to_user_mode+0x16/0x40 [ 84.534772][ T4357] do_syscall_64+0x58/0xa0 [ 84.539820][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.546358][ T4357] [ 84.546358][ T4357] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.554031][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 84.559781][ T4357] mutex_lock_nested+0x17/0x20 [ 84.565096][ T4357] bg_scan_update+0x44/0x3b0 [ 84.570223][ T4357] process_one_work+0x863/0x1000 [ 84.575710][ T4357] worker_thread+0xaa8/0x12a0 [ 84.581319][ T4357] kthread+0x436/0x520 [ 84.586033][ T4357] ret_from_fork+0x1f/0x30 [ 84.591004][ T4357] [ 84.591004][ T4357] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.600852][ T4357] __lock_acquire+0x2c33/0x7c60 [ 84.606262][ T4357] lock_acquire+0x197/0x3f0 [ 84.611399][ T4357] __flush_work+0xdd/0x1b0 [ 84.616366][ T4357] __cancel_work_timer+0x3ac/0x520 [ 84.622029][ T4357] hci_request_cancel_all+0xcc/0x300 [ 84.627867][ T4357] hci_dev_do_close+0x4e/0x1030 [ 84.633267][ T4357] hci_rfkill_set_block+0x10a/0x190 [ 84.639016][ T4357] rfkill_set_block+0x1c6/0x420 [ 84.644417][ T4357] rfkill_fop_write+0x458/0x560 [ 84.649822][ T4357] vfs_write+0x300/0xd00 [ 84.654608][ T4357] ksys_write+0x14d/0x250 [ 84.659485][ T4357] do_syscall_64+0x4c/0xa0 [ 84.664449][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.670893][ T4357] [ 84.670893][ T4357] other info that might help us debug this: [ 84.670893][ T4357] [ 84.681138][ T4357] Chain exists of: [ 84.681138][ T4357] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.681138][ T4357] [ 84.697002][ T4357] Possible unsafe locking scenario: [ 84.697002][ T4357] [ 84.704492][ T4357] CPU0 CPU1 [ 84.709859][ T4357] ---- ---- [ 84.715220][ T4357] lock(rfkill_global_mutex); [ 84.719990][ T4357] lock(&data->open_mutex); [ 84.727105][ T4357] lock(rfkill_global_mutex); [ 84.734389][ T4357] lock((work_completion)(&hdev->bg_scan_update)); [ 84.740979][ T4357] [ 84.740979][ T4357] *** DEADLOCK *** [ 84.740979][ T4357] [ 84.749124][ T4357] 1 lock held by syz.0.17/4357: [ 84.753969][ T4357] #0: ffffffff8d4c0768 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.764074][ T4357] [ 84.764074][ T4357] stack backtrace: [ 84.769971][ T4357] CPU: 1 PID: 4357 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.777170][ T4357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 84.787237][ T4357] Call Trace: [ 84.790519][ T4357] [ 84.793449][ T4357] dump_stack_lvl+0x168/0x230 [ 84.798141][ T4357] ? load_image+0x3b0/0x3b0 [ 84.802652][ T4357] ? show_regs_print_info+0x20/0x20 [ 84.807871][ T4357] ? print_circular_bug+0x12b/0x1a0 [ 84.813071][ T4357] check_noncircular+0x274/0x310 [ 84.818016][ T4357] ? add_chain_block+0x940/0x940 [ 84.822957][ T4357] ? lockdep_lock+0xdc/0x1e0 [ 84.827556][ T4357] ? __lock_acquire+0x12d9/0x7c60 [ 84.832586][ T4357] ? lockdep_lock+0x1e0/0x1e0 [ 84.837272][ T4357] ? mark_lock+0x94/0x320 [ 84.841634][ T4357] __lock_acquire+0x2c33/0x7c60 [ 84.846501][ T4357] ? verify_lock_unused+0x140/0x140 [ 84.851707][ T4357] ? verify_lock_unused+0x140/0x140 [ 84.856956][ T4357] lock_acquire+0x197/0x3f0 [ 84.861464][ T4357] ? __flush_work+0xc1/0x1b0 [ 84.866062][ T4357] ? __lock_acquire+0x7c60/0x7c60 [ 84.871097][ T4357] ? read_lock_is_recursive+0x10/0x10 [ 84.876489][ T4357] ? start_flush_work+0x776/0x820 [ 84.881604][ T4357] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.887505][ T4357] ? _raw_spin_unlock+0x40/0x40 [ 84.892363][ T4357] __flush_work+0xdd/0x1b0 [ 84.896851][ T4357] ? __flush_work+0xc1/0x1b0 [ 84.901979][ T4357] ? flush_work+0x20/0x20 [ 84.906309][ T4357] ? try_to_grab_pending+0xf3/0x7e0 [ 84.911518][ T4357] ? lockdep_hardirqs_off+0x70/0x100 [ 84.916814][ T4357] ? mark_lock+0x94/0x320 [ 84.921158][ T4357] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 84.927152][ T4357] ? lock_chain_count+0x20/0x20 [ 84.932094][ T4357] ? mark_lock+0x94/0x320 [ 84.936433][ T4357] ? __cancel_work_timer+0x331/0x520 [ 84.941856][ T4357] __cancel_work_timer+0x3ac/0x520 [ 84.947003][ T4357] ? cancel_work_sync+0x20/0x20 [ 84.951862][ T4357] ? __cancel_work+0x1f4/0x2d0 [ 84.956643][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 84.961898][ T4357] ? __cancel_work+0x26f/0x2d0 [ 84.966670][ T4357] ? cancel_work+0x20/0x20 [ 84.971096][ T4357] ? lock_chain_count+0x20/0x20 [ 84.975958][ T4357] hci_request_cancel_all+0xcc/0x300 [ 84.981254][ T4357] hci_dev_do_close+0x4e/0x1030 [ 84.986111][ T4357] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.992037][ T4357] ? _raw_spin_unlock+0x40/0x40 [ 84.996898][ T4357] hci_rfkill_set_block+0x10a/0x190 [ 85.002108][ T4357] ? rcu_lock_release+0x20/0x20 [ 85.007083][ T4357] rfkill_set_block+0x1c6/0x420 [ 85.011963][ T4357] rfkill_fop_write+0x458/0x560 [ 85.016823][ T4357] ? verify_lock_unused+0x140/0x140 [ 85.022038][ T4357] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.026980][ T4357] ? common_file_perm+0x140/0x1c0 [ 85.032008][ T4357] ? fsnotify_perm+0x5d/0x560 [ 85.036689][ T4357] ? security_file_permission+0x75/0xa0 [ 85.042245][ T4357] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.047189][ T4357] vfs_write+0x300/0xd00 [ 85.051438][ T4357] ? file_end_write+0x250/0x250 [ 85.056383][ T4357] ? __context_tracking_exit+0x4c/0x80 [ 85.061854][ T4357] ? __lock_acquire+0x7c60/0x7c60 [ 85.066891][ T4357] ? __fdget_pos+0x1e2/0x370 [ 85.071490][ T4357] ksys_write+0x14d/0x250 [ 85.075825][ T4357] ? __ia32_sys_read+0x80/0x80 [ 85.080603][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 85.085859][ T4357] do_syscall_64+0x4c/0xa0 [ 85.090281][ T4357] ? clear_bhb_loop+0x30/0x80 [ 85.094986][ T4357] ? clear_bhb_loop+0x30/0x80 [ 85.099673][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.105585][ T4357] RIP: 0033:0x7fdacd24cec9 [ 85.110009][ T4357] 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 [ 85.129617][ T4357] RSP: 002b:00007ffc56405608 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.138049][ T4357] RAX: ffffffffffffffda RBX: 00007fdacd4a3fa0 RCX: 00007fdacd24cec9 [ 85.146038][ T4357] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 85.154042][ T4357] RBP: 00007fdacd2cff91 R08: 0000000000000000 R09: 0000000000000000 [ 85.162018][ T4357] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.169996][ T4357] R13: 00007fdacd4a3fa0 R14: 00007fdacd4a3fa0 R15: 0000000000000003 [ 85.178096][ T4357]