Warning: Permanently added '10.128.0.217' (ED25519) to the list of known hosts. 2025/09/29 04:02:29 parsed 1 programs [ 71.732253][ T4191] cgroup: Unknown subsys name 'net' [ 71.852000][ T4191] cgroup: Unknown subsys name 'rlimit' [ 73.399175][ T4191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.494910][ T4220] chnl_net:caif_netlink_parms(): no params data found [ 75.568717][ T4220] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.577830][ T4220] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.586461][ T4220] device bridge_slave_0 entered promiscuous mode [ 75.598510][ T4220] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.606110][ T4220] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.614384][ T4220] device bridge_slave_1 entered promiscuous mode [ 75.647555][ T4220] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.660954][ T4220] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.696814][ T4220] team0: Port device team_slave_0 added [ 75.705426][ T4220] team0: Port device team_slave_1 added [ 75.734348][ T4220] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.742749][ T4220] 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. [ 75.770891][ T4220] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.784678][ T4220] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.793082][ T4220] 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. [ 75.820749][ T4220] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.862423][ T4220] device hsr_slave_0 entered promiscuous mode [ 75.869683][ T4220] device hsr_slave_1 entered promiscuous mode [ 76.013420][ T4220] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.027139][ T4220] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.038847][ T4220] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.050113][ T4220] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.085446][ T4220] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.092877][ T4220] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.101055][ T4220] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.110651][ T4220] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.177246][ T4220] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.197187][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.209716][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.221121][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.231132][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.251155][ T4220] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.264157][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.274709][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.282230][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.299951][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.311067][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.319406][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.349536][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.360976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.378728][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.395486][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.412244][ T4220] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.427423][ T4220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.437206][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.571681][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.580900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.599852][ T4220] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.633084][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.642794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.666492][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.675916][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.688595][ T4220] device veth0_vlan entered promiscuous mode [ 76.698848][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.709120][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.724907][ T4220] device veth1_vlan entered promiscuous mode [ 76.750785][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.761225][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.771245][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.781928][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.795313][ T4220] device veth0_macvtap entered promiscuous mode [ 76.807229][ T4220] device veth1_macvtap entered promiscuous mode [ 76.824237][ T4220] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.832349][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.840620][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.850654][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.861865][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.874532][ T4220] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.887525][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.897018][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.909057][ T4220] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.922175][ T4220] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.932763][ T4220] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.942533][ T4220] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.070975][ T4220] syz-executor (4220) used greatest stack depth: 20928 bytes left [ 77.313168][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.323257][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.346438][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.366292][ T1158] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.374433][ T1158] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.384196][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.378890][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/09/29 04:02:39 executed programs: 0 [ 79.586302][ T4291] chnl_net:caif_netlink_parms(): no params data found [ 79.631434][ T4291] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.639066][ T4291] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.648546][ T4291] device bridge_slave_0 entered promiscuous mode [ 79.656910][ T4291] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.664324][ T4291] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.673321][ T4291] device bridge_slave_1 entered promiscuous mode [ 79.699137][ T4291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.711649][ T4291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.742621][ T4291] team0: Port device team_slave_0 added [ 79.752109][ T4291] team0: Port device team_slave_1 added [ 79.772664][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.780707][ 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. [ 79.808197][ T4291] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.820554][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.827790][ 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. [ 79.854288][ T4291] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.888345][ T4291] device hsr_slave_0 entered promiscuous mode [ 79.896169][ T4291] device hsr_slave_1 entered promiscuous mode [ 79.903230][ T4291] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.912639][ T4291] Cannot create hsr debugfs directory [ 81.565984][ T4245] Bluetooth: hci0: command 0x0409 tx timeout [ 81.693492][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.732506][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.783066][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.642013][ T4291] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.655532][ T4291] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.665415][ T4291] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.697066][ T4291] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.778868][ T4291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.791093][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.800601][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.835896][ T4291] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.854342][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.864414][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.874680][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.881826][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.890016][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.899811][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.908682][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.915886][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.924063][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.933833][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.957181][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.968465][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.978006][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.987429][ T1271] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.018150][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.027384][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.038760][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.048313][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.089145][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.098401][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.111372][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.221026][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.228697][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.242806][ T4291] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.281193][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.290251][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.332726][ T4291] device veth0_vlan entered promiscuous mode [ 83.340379][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.349188][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.358328][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.366520][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.380109][ T4291] device veth1_vlan entered promiscuous mode [ 83.422311][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.432444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.442037][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.452618][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.464142][ T4291] device veth0_macvtap entered promiscuous mode [ 83.476650][ T4291] device veth1_macvtap entered promiscuous mode [ 83.497960][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 83.508992][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 83.520897][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.529617][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.538286][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.547440][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.556932][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.578364][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 83.589839][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 83.601401][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.610240][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.619399][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.644966][ T4291] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.645753][ T4301] Bluetooth: hci0: command 0x041b tx timeout [ 83.654465][ T4291] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.670198][ T4291] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.679150][ T4291] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.700722][ T144] device hsr_slave_0 left promiscuous mode [ 83.708100][ T144] device hsr_slave_1 left promiscuous mode [ 83.718522][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.727059][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.736295][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.743743][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.751754][ T144] device bridge_slave_1 left promiscuous mode [ 83.758788][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.772485][ T144] device bridge_slave_0 left promiscuous mode [ 83.780626][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.799539][ T144] device veth1_macvtap left promiscuous mode [ 83.807155][ T144] device veth0_macvtap left promiscuous mode [ 83.813879][ T144] device veth1_vlan left promiscuous mode [ 83.820273][ T144] device veth0_vlan left promiscuous mode [ 84.016150][ T144] team0 (unregistering): Port device team_slave_1 removed [ 84.030401][ T144] team0 (unregistering): Port device team_slave_0 removed [ 84.044212][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.062229][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.126975][ T144] bond0 (unregistering): Released all slaves [ 84.231145][ T1158] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.253025][ T1158] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.263346][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.273701][ T1158] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.288323][ T1158] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.303867][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.410994][ T4353] [ 84.413375][ T4353] ====================================================== [ 84.420695][ T4353] WARNING: possible circular locking dependency detected [ 84.427819][ T4353] syzkaller #0 Not tainted [ 84.432252][ T4353] ------------------------------------------------------ [ 84.439340][ T4353] syz.0.17/4353 is trying to acquire lock: [ 84.445423][ T4353] ffff8880745f0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 84.456767][ T4353] [ 84.456767][ T4353] but task is already holding lock: [ 84.464711][ T4353] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.474558][ T4353] [ 84.474558][ T4353] which lock already depends on the new lock. [ 84.474558][ T4353] [ 84.485073][ T4353] [ 84.485073][ T4353] the existing dependency chain (in reverse order) is: [ 84.494286][ T4353] [ 84.494286][ T4353] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.502400][ T4353] __mutex_lock_common+0x1eb/0x2390 [ 84.508251][ T4353] mutex_lock_nested+0x17/0x20 [ 84.513680][ T4353] rfkill_register+0x33/0x8a0 [ 84.519059][ T4353] hci_register_dev+0x452/0x970 [ 84.524759][ T4353] vhci_create_device+0x32c/0x5c0 [ 84.530570][ T4353] vhci_write+0x391/0x450 [ 84.535655][ T4353] vfs_write+0x712/0xd00 [ 84.540543][ T4353] ksys_write+0x14d/0x250 [ 84.545699][ T4353] do_syscall_64+0x4c/0xa0 [ 84.550758][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.557423][ T4353] [ 84.557423][ T4353] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.565375][ T4353] __mutex_lock_common+0x1eb/0x2390 [ 84.571416][ T4353] mutex_lock_nested+0x17/0x20 [ 84.576839][ T4353] vhci_send_frame+0x88/0x100 [ 84.582244][ T4353] hci_send_frame+0x1a9/0x2e0 [ 84.587473][ T4353] hci_tx_work+0x9f9/0x1710 [ 84.592616][ T4353] process_one_work+0x863/0x1000 [ 84.598600][ T4353] worker_thread+0xaa8/0x12a0 [ 84.603918][ T4353] kthread+0x436/0x520 [ 84.608541][ T4353] ret_from_fork+0x1f/0x30 [ 84.613596][ T4353] [ 84.613596][ T4353] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.623302][ T4353] __flush_work+0xdd/0x1b0 [ 84.628269][ T4353] hci_dev_do_close+0x1e7/0x1030 [ 84.633869][ T4353] hci_unregister_dev+0x2d7/0x580 [ 84.639473][ T4353] vhci_release+0x73/0xc0 [ 84.644351][ T4353] __fput+0x234/0x930 [ 84.648884][ T4353] task_work_run+0x125/0x1a0 [ 84.654063][ T4353] do_exit+0x61e/0x20a0 [ 84.658770][ T4353] do_group_exit+0x12e/0x300 [ 84.664656][ T4353] get_signal+0x6ca/0x12c0 [ 84.669890][ T4353] arch_do_signal_or_restart+0xc1/0x1300 [ 84.676294][ T4353] exit_to_user_mode_loop+0x9e/0x130 [ 84.682320][ T4353] exit_to_user_mode_prepare+0xee/0x180 [ 84.688595][ T4353] syscall_exit_to_user_mode+0x16/0x40 [ 84.694798][ T4353] do_syscall_64+0x58/0xa0 [ 84.699865][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.706441][ T4353] [ 84.706441][ T4353] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.714225][ T4353] __mutex_lock_common+0x1eb/0x2390 [ 84.720389][ T4353] mutex_lock_nested+0x17/0x20 [ 84.725800][ T4353] bg_scan_update+0x44/0x3b0 [ 84.731266][ T4353] process_one_work+0x863/0x1000 [ 84.737009][ T4353] worker_thread+0xaa8/0x12a0 [ 84.742303][ T4353] kthread+0x436/0x520 [ 84.747019][ T4353] ret_from_fork+0x1f/0x30 [ 84.752098][ T4353] [ 84.752098][ T4353] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.762258][ T4353] __lock_acquire+0x2c33/0x7c60 [ 84.767754][ T4353] lock_acquire+0x197/0x3f0 [ 84.773352][ T4353] __flush_work+0xdd/0x1b0 [ 84.778326][ T4353] __cancel_work_timer+0x3ac/0x520 [ 84.784023][ T4353] hci_request_cancel_all+0xcc/0x300 [ 84.789871][ T4353] hci_dev_do_close+0x4e/0x1030 [ 84.795540][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 84.801679][ T4353] rfkill_set_block+0x1c6/0x420 [ 84.807330][ T4353] rfkill_fop_write+0x458/0x560 [ 84.812740][ T4353] vfs_write+0x300/0xd00 [ 84.817632][ T4353] ksys_write+0x14d/0x250 [ 84.822690][ T4353] do_syscall_64+0x4c/0xa0 [ 84.827755][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.834286][ T4353] [ 84.834286][ T4353] other info that might help us debug this: [ 84.834286][ T4353] [ 84.844615][ T4353] Chain exists of: [ 84.844615][ T4353] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.844615][ T4353] [ 84.860558][ T4353] Possible unsafe locking scenario: [ 84.860558][ T4353] [ 84.868130][ T4353] CPU0 CPU1 [ 84.874007][ T4353] ---- ---- [ 84.879524][ T4353] lock(rfkill_global_mutex); [ 84.884764][ T4353] lock(&data->open_mutex); [ 84.892551][ T4353] lock(rfkill_global_mutex); [ 84.899989][ T4353] lock((work_completion)(&hdev->bg_scan_update)); [ 84.906709][ T4353] [ 84.906709][ T4353] *** DEADLOCK *** [ 84.906709][ T4353] [ 84.915263][ T4353] 1 lock held by syz.0.17/4353: [ 84.920139][ T4353] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.930480][ T4353] [ 84.930480][ T4353] stack backtrace: [ 84.936514][ T4353] CPU: 0 PID: 4353 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.943821][ T4353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 84.954055][ T4353] Call Trace: [ 84.957362][ T4353] [ 84.960315][ T4353] dump_stack_lvl+0x168/0x230 [ 84.965063][ T4353] ? load_image+0x3b0/0x3b0 [ 84.969743][ T4353] ? show_regs_print_info+0x20/0x20 [ 84.974981][ T4353] ? print_circular_bug+0x12b/0x1a0 [ 84.980358][ T4353] check_noncircular+0x274/0x310 [ 84.985334][ T4353] ? add_chain_block+0x940/0x940 [ 84.990393][ T4353] ? lockdep_lock+0xdc/0x1e0 [ 84.995138][ T4353] ? __lock_acquire+0x12d9/0x7c60 [ 85.000195][ T4353] ? lockdep_lock+0x1e0/0x1e0 [ 85.004996][ T4353] ? mark_lock+0x94/0x320 [ 85.009458][ T4353] __lock_acquire+0x2c33/0x7c60 [ 85.014352][ T4353] ? verify_lock_unused+0x140/0x140 [ 85.019605][ T4353] ? verify_lock_unused+0x140/0x140 [ 85.025040][ T4353] lock_acquire+0x197/0x3f0 [ 85.029584][ T4353] ? __flush_work+0xc1/0x1b0 [ 85.034298][ T4353] ? __lock_acquire+0x7c60/0x7c60 [ 85.039370][ T4353] ? read_lock_is_recursive+0x10/0x10 [ 85.044785][ T4353] ? start_flush_work+0x776/0x820 [ 85.050047][ T4353] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.056082][ T4353] ? _raw_spin_unlock+0x40/0x40 [ 85.061071][ T4353] __flush_work+0xdd/0x1b0 [ 85.065779][ T4353] ? __flush_work+0xc1/0x1b0 [ 85.070575][ T4353] ? flush_work+0x20/0x20 [ 85.074933][ T4353] ? try_to_grab_pending+0xf3/0x7e0 [ 85.080350][ T4353] ? lockdep_hardirqs_off+0x70/0x100 [ 85.085681][ T4353] ? mark_lock+0x94/0x320 [ 85.090050][ T4353] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 85.096131][ T4353] ? lock_chain_count+0x20/0x20 [ 85.101019][ T4353] ? mark_lock+0x94/0x320 [ 85.105392][ T4353] ? __cancel_work_timer+0x331/0x520 [ 85.110817][ T4353] __cancel_work_timer+0x3ac/0x520 [ 85.115965][ T4353] ? cancel_work_sync+0x20/0x20 [ 85.121027][ T4353] ? __cancel_work+0x1f4/0x2d0 [ 85.125966][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 85.131335][ T4353] ? __cancel_work+0x26f/0x2d0 [ 85.136135][ T4353] ? cancel_work+0x20/0x20 [ 85.140580][ T4353] ? lock_chain_count+0x20/0x20 [ 85.145463][ T4353] hci_request_cancel_all+0xcc/0x300 [ 85.150871][ T4353] hci_dev_do_close+0x4e/0x1030 [ 85.155755][ T4353] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.161697][ T4353] ? _raw_spin_unlock+0x40/0x40 [ 85.166582][ T4353] hci_rfkill_set_block+0x10a/0x190 [ 85.172038][ T4353] ? rcu_lock_release+0x20/0x20 [ 85.177024][ T4353] rfkill_set_block+0x1c6/0x420 [ 85.182119][ T4353] rfkill_fop_write+0x458/0x560 [ 85.187154][ T4353] ? verify_lock_unused+0x140/0x140 [ 85.192392][ T4353] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.197585][ T4353] ? common_file_perm+0xc0/0x1c0 [ 85.202571][ T4353] ? fsnotify_perm+0x5d/0x560 [ 85.207391][ T4353] ? security_file_permission+0x75/0xa0 [ 85.213067][ T4353] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.218150][ T4353] vfs_write+0x300/0xd00 [ 85.222439][ T4353] ? file_end_write+0x250/0x250 [ 85.227327][ T4353] ? __context_tracking_exit+0x4c/0x80 [ 85.232922][ T4353] ? __lock_acquire+0x7c60/0x7c60 [ 85.238111][ T4353] ? __fdget_pos+0x1e2/0x370 [ 85.242992][ T4353] ksys_write+0x14d/0x250 [ 85.247409][ T4353] ? __ia32_sys_read+0x80/0x80 [ 85.252214][ T4353] ? lockdep_hardirqs_on+0x94/0x140 [ 85.257565][ T4353] do_syscall_64+0x4c/0xa0 [ 85.262021][ T4353] ? clear_bhb_loop+0x30/0x80 [ 85.266737][ T4353] ? clear_bhb_loop+0x30/0x80 [ 85.271460][ T4353] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.277512][ T4353] RIP: 0033:0x7f03dd54bec9 [ 85.281963][ T4353] 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 [ 85.301857][ T4353] RSP: 002b:00007ffcecfa0d58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.310402][ T4353] RAX: ffffffffffffffda RBX: 00007f03dd7a2fa0 RCX: 00007f03dd54bec9 [ 85.318501][ T4353] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 85.327217][ T4353] RBP: 00007f03dd5cef91 R08: 0000000000000000 R09: 0000000000000000 [ 85.335516][ T4353] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.343516][ T4353] R13: 00007f03dd7a2fa0 R14: 00007f03dd7a2fa0 R15: 0000000000000003 [ 85.352192][ T4353]