Warning: Permanently added '10.128.1.20' (ED25519) to the list of known hosts. 2025/12/29 14:09:02 parsed 1 programs [ 66.922383][ T4186] cgroup: Unknown subsys name 'net' [ 67.060281][ T4186] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.661713][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.576210][ T4206] chnl_net:caif_netlink_parms(): no params data found [ 70.629735][ T4206] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.637402][ T4206] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.645989][ T4206] device bridge_slave_0 entered promiscuous mode [ 70.655540][ T4206] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.662655][ T4206] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.670667][ T4206] device bridge_slave_1 entered promiscuous mode [ 70.696708][ T4206] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.708112][ T4206] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.736421][ T4206] team0: Port device team_slave_0 added [ 70.744562][ T4206] team0: Port device team_slave_1 added [ 70.763550][ T4206] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.770529][ T4206] 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. [ 70.797356][ T4206] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.811975][ T4206] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.819145][ T4206] 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. [ 70.845204][ T4206] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.878935][ T4206] device hsr_slave_0 entered promiscuous mode [ 70.885738][ T4206] device hsr_slave_1 entered promiscuous mode [ 70.996739][ T4206] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.010093][ T4206] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.020712][ T4206] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.031033][ T4206] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.062769][ T4206] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.070077][ T4206] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.078392][ T4206] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.085548][ T4206] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.145319][ T4206] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.159678][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.171921][ T893] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.181256][ T893] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.191700][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.208536][ T4206] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.221677][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.233093][ T893] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.240245][ T893] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.267466][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.277068][ T893] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.284214][ T893] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.297055][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.305788][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.336677][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.343353][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.355386][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.376544][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.407239][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.424803][ T4206] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.576665][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.587533][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.601941][ T4206] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.627443][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.638435][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.661495][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.673467][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.685127][ T4206] device veth0_vlan entered promiscuous mode [ 71.695891][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.704950][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.716281][ T4206] device veth1_vlan entered promiscuous mode [ 71.744127][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.756944][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.766223][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.776564][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.787553][ T4206] device veth0_macvtap entered promiscuous mode [ 71.801096][ T4206] device veth1_macvtap entered promiscuous mode [ 71.820399][ T4206] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.830955][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.840760][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.850713][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.859553][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.875567][ T4206] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.885567][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.896457][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.909183][ T4206] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.919307][ T4206] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.929522][ T4206] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.938642][ T4206] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.045405][ T4206] syz-executor (4206) used greatest stack depth: 20320 bytes left [ 72.604381][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.850609][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.208117][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.281111][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.530154][ T144] device hsr_slave_0 left promiscuous mode [ 78.536839][ T144] device hsr_slave_1 left promiscuous mode [ 78.543837][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.551508][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.560974][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.569025][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.577220][ T144] device bridge_slave_1 left promiscuous mode [ 78.584696][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.601609][ T144] device bridge_slave_0 left promiscuous mode [ 78.609465][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.645716][ T144] device veth1_macvtap left promiscuous mode [ 78.652126][ T144] device veth0_macvtap left promiscuous mode [ 78.658671][ T144] device veth1_vlan left promiscuous mode [ 78.664834][ T144] device veth0_vlan left promiscuous mode [ 78.888183][ T144] team0 (unregistering): Port device team_slave_1 removed [ 78.901061][ T144] team0 (unregistering): Port device team_slave_0 removed [ 78.914717][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.930275][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.991507][ T144] bond0 (unregistering): Released all slaves [ 79.156337][ T893] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.174110][ T893] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.184712][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.226520][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.234782][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.247037][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/12/29 14:09:18 executed programs: 0 [ 81.069990][ T4374] chnl_net:caif_netlink_parms(): no params data found [ 81.158677][ T4374] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.166105][ T4374] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.174459][ T4374] device bridge_slave_0 entered promiscuous mode [ 81.183895][ T4374] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.191046][ T4374] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.199745][ T4374] device bridge_slave_1 entered promiscuous mode [ 81.232077][ T4374] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.245204][ T4374] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.288412][ T4374] team0: Port device team_slave_0 added [ 81.315783][ T4374] team0: Port device team_slave_1 added [ 81.352824][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.359958][ T4374] 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. [ 81.387678][ T4374] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.400818][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.410107][ T4374] 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. [ 81.437787][ T4374] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.516313][ T4374] device hsr_slave_0 entered promiscuous mode [ 81.524711][ T4374] device hsr_slave_1 entered promiscuous mode [ 81.663112][ T144] ODEBUG: Out of memory. ODEBUG disabled [ 82.770741][ T4374] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.790703][ T4374] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.815277][ T4374] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.837613][ T4374] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.865336][ T4256] Bluetooth: hci0: command 0x0409 tx timeout [ 82.952567][ T4374] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.997192][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.005750][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.017752][ T4374] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.065173][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.074137][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.082891][ T893] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.090087][ T893] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.099444][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.108388][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.117303][ T893] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.124433][ T893] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.132235][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.141995][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.191965][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.203480][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.212444][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.221607][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.232769][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.241944][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.260332][ T4374] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 83.273108][ T4374] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.287400][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.297482][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.307728][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.317333][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.327457][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.482876][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.491611][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.508560][ T4374] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.554620][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.564616][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.585438][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.594453][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.606072][ T4374] device veth0_vlan entered promiscuous mode [ 83.615312][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.624295][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.635788][ T4374] device veth1_vlan entered promiscuous mode [ 83.683444][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.692112][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.704125][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.712755][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.726310][ T4374] device veth0_macvtap entered promiscuous mode [ 83.757906][ T4374] device veth1_macvtap entered promiscuous mode [ 83.778044][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.785965][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.797279][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.806350][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.817246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.829454][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.839801][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.850021][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.864183][ T4374] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.872918][ T4374] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.884023][ T4374] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.892768][ T4374] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.989121][ T893] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.001798][ T893] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.027237][ T893] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.046608][ T893] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.056485][ T893] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.074489][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.191922][ T4502] [ 84.194305][ T4502] ====================================================== [ 84.201337][ T4502] WARNING: possible circular locking dependency detected [ 84.208388][ T4502] syzkaller #0 Not tainted [ 84.212817][ T4502] ------------------------------------------------------ [ 84.219851][ T4502] syz.0.17/4502 is trying to acquire lock: [ 84.225680][ T4502] ffff888076140c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 84.236809][ T4502] [ 84.236809][ T4502] but task is already holding lock: [ 84.244189][ T4502] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.253880][ T4502] [ 84.253880][ T4502] which lock already depends on the new lock. [ 84.253880][ T4502] [ 84.264307][ T4502] [ 84.264307][ T4502] the existing dependency chain (in reverse order) is: [ 84.273339][ T4502] [ 84.273339][ T4502] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.281375][ T4502] __mutex_lock_common+0x1eb/0x2390 [ 84.287132][ T4502] mutex_lock_nested+0x17/0x20 [ 84.292446][ T4502] rfkill_register+0x33/0x8a0 [ 84.297675][ T4502] hci_register_dev+0x452/0x970 [ 84.303079][ T4502] vhci_create_device+0x32c/0x5c0 [ 84.308660][ T4502] vhci_write+0x391/0x450 [ 84.313530][ T4502] vfs_write+0x712/0xd00 [ 84.318325][ T4502] ksys_write+0x14d/0x250 [ 84.323199][ T4502] do_syscall_64+0x4c/0xa0 [ 84.328163][ T4502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.334603][ T4502] [ 84.334603][ T4502] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.342454][ T4502] __mutex_lock_common+0x1eb/0x2390 [ 84.348207][ T4502] mutex_lock_nested+0x17/0x20 [ 84.353531][ T4502] vhci_send_frame+0x88/0x100 [ 84.358875][ T4502] hci_send_frame+0x1a9/0x2e0 [ 84.364109][ T4502] hci_tx_work+0x9f9/0x1710 [ 84.369449][ T4502] process_one_work+0x863/0x1000 [ 84.374954][ T4502] worker_thread+0xaa8/0x12a0 [ 84.380187][ T4502] kthread+0x436/0x520 [ 84.384807][ T4502] ret_from_fork+0x1f/0x30 [ 84.389784][ T4502] [ 84.389784][ T4502] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.399047][ T4502] __flush_work+0xdd/0x1b0 [ 84.404012][ T4502] hci_dev_do_close+0x1e7/0x1030 [ 84.409509][ T4502] hci_unregister_dev+0x2d7/0x580 [ 84.415202][ T4502] vhci_release+0x73/0xc0 [ 84.420080][ T4502] __fput+0x234/0x930 [ 84.424613][ T4502] task_work_run+0x125/0x1a0 [ 84.429758][ T4502] do_exit+0x61e/0x20a0 [ 84.434461][ T4502] do_group_exit+0x12e/0x300 [ 84.439629][ T4502] get_signal+0x6ca/0x12c0 [ 84.444609][ T4502] arch_do_signal_or_restart+0xc1/0x1300 [ 84.450796][ T4502] exit_to_user_mode_loop+0x9e/0x130 [ 84.456647][ T4502] exit_to_user_mode_prepare+0xee/0x180 [ 84.462876][ T4502] syscall_exit_to_user_mode+0x16/0x40 [ 84.468889][ T4502] do_syscall_64+0x58/0xa0 [ 84.473862][ T4502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.480304][ T4502] [ 84.480304][ T4502] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.487975][ T4502] __mutex_lock_common+0x1eb/0x2390 [ 84.493734][ T4502] mutex_lock_nested+0x17/0x20 [ 84.499023][ T4502] bg_scan_update+0x44/0x3b0 [ 84.504133][ T4502] process_one_work+0x863/0x1000 [ 84.509588][ T4502] worker_thread+0xaa8/0x12a0 [ 84.514783][ T4502] kthread+0x436/0x520 [ 84.519372][ T4502] ret_from_fork+0x1f/0x30 [ 84.524307][ T4502] [ 84.524307][ T4502] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.534223][ T4502] __lock_acquire+0x2c33/0x7c60 [ 84.539634][ T4502] lock_acquire+0x197/0x3f0 [ 84.544653][ T4502] __flush_work+0xdd/0x1b0 [ 84.549586][ T4502] __cancel_work_timer+0x3ac/0x520 [ 84.555209][ T4502] hci_request_cancel_all+0xcc/0x300 [ 84.561012][ T4502] hci_dev_do_close+0x4e/0x1030 [ 84.566567][ T4502] hci_rfkill_set_block+0x10a/0x190 [ 84.572305][ T4502] rfkill_set_block+0x1c6/0x420 [ 84.577698][ T4502] rfkill_fop_write+0x458/0x560 [ 84.583076][ T4502] vfs_write+0x300/0xd00 [ 84.587839][ T4502] ksys_write+0x14d/0x250 [ 84.592687][ T4502] do_syscall_64+0x4c/0xa0 [ 84.597624][ T4502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.604036][ T4502] [ 84.604036][ T4502] other info that might help us debug this: [ 84.604036][ T4502] [ 84.614287][ T4502] Chain exists of: [ 84.614287][ T4502] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.614287][ T4502] [ 84.630282][ T4502] Possible unsafe locking scenario: [ 84.630282][ T4502] [ 84.637744][ T4502] CPU0 CPU1 [ 84.643124][ T4502] ---- ---- [ 84.648653][ T4502] lock(rfkill_global_mutex); [ 84.653425][ T4502] lock(&data->open_mutex); [ 84.660562][ T4502] lock(rfkill_global_mutex); [ 84.667996][ T4502] lock((work_completion)(&hdev->bg_scan_update)); [ 84.674710][ T4502] [ 84.674710][ T4502] *** DEADLOCK *** [ 84.674710][ T4502] [ 84.682859][ T4502] 1 lock held by syz.0.17/4502: [ 84.687835][ T4502] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.698089][ T4502] [ 84.698089][ T4502] stack backtrace: [ 84.703981][ T4502] CPU: 1 PID: 4502 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.711174][ T4502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 84.721329][ T4502] Call Trace: [ 84.724639][ T4502] [ 84.727568][ T4502] dump_stack_lvl+0x168/0x230 [ 84.732260][ T4502] ? load_image+0x3b0/0x3b0 [ 84.736762][ T4502] ? show_regs_print_info+0x20/0x20 [ 84.741964][ T4502] ? print_circular_bug+0x12b/0x1a0 [ 84.747161][ T4502] check_noncircular+0x274/0x310 [ 84.752185][ T4502] ? add_chain_block+0x940/0x940 [ 84.757136][ T4502] ? lockdep_lock+0xdc/0x1e0 [ 84.761760][ T4502] ? __lock_acquire+0x12d9/0x7c60 [ 84.766790][ T4502] ? lockdep_lock+0x1e0/0x1e0 [ 84.771559][ T4502] ? mark_lock+0x94/0x320 [ 84.775899][ T4502] __lock_acquire+0x2c33/0x7c60 [ 84.780764][ T4502] ? rcu_lock_release+0x5/0x20 [ 84.785634][ T4502] ? verify_lock_unused+0x140/0x140 [ 84.791079][ T4502] lock_acquire+0x197/0x3f0 [ 84.795595][ T4502] ? __flush_work+0xc1/0x1b0 [ 84.800196][ T4502] ? __lock_acquire+0x7c60/0x7c60 [ 84.805234][ T4502] ? read_lock_is_recursive+0x10/0x10 [ 84.810893][ T4502] ? start_flush_work+0x776/0x820 [ 84.815963][ T4502] __flush_work+0xdd/0x1b0 [ 84.820542][ T4502] ? __flush_work+0xc1/0x1b0 [ 84.825140][ T4502] ? flush_work+0x20/0x20 [ 84.829566][ T4502] ? try_to_grab_pending+0xf3/0x7e0 [ 84.834782][ T4502] ? lockdep_hardirqs_off+0x70/0x100 [ 84.840160][ T4502] ? mark_lock+0x94/0x320 [ 84.844490][ T4502] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 84.850477][ T4502] ? lock_chain_count+0x20/0x20 [ 84.855466][ T4502] ? mark_lock+0x94/0x320 [ 84.859843][ T4502] ? __cancel_work_timer+0x331/0x520 [ 84.865139][ T4502] __cancel_work_timer+0x3ac/0x520 [ 84.870259][ T4502] ? cancel_work_sync+0x20/0x20 [ 84.875197][ T4502] ? __cancel_work+0x1f4/0x2d0 [ 84.879979][ T4502] ? lockdep_hardirqs_on+0x94/0x140 [ 84.885209][ T4502] ? __cancel_work+0x26f/0x2d0 [ 84.889985][ T4502] ? cancel_work+0x20/0x20 [ 84.894406][ T4502] ? lock_chain_count+0x20/0x20 [ 84.899271][ T4502] hci_request_cancel_all+0xcc/0x300 [ 84.904704][ T4502] hci_dev_do_close+0x4e/0x1030 [ 84.909565][ T4502] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.915469][ T4502] ? _raw_spin_unlock+0x40/0x40 [ 84.920426][ T4502] hci_rfkill_set_block+0x10a/0x190 [ 84.925631][ T4502] ? rcu_lock_release+0x20/0x20 [ 84.930492][ T4502] rfkill_set_block+0x1c6/0x420 [ 84.935344][ T4502] rfkill_fop_write+0x458/0x560 [ 84.940197][ T4502] ? verify_lock_unused+0x140/0x140 [ 84.945398][ T4502] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.950356][ T4502] ? common_file_perm+0xc0/0x1c0 [ 84.955299][ T4502] ? fsnotify_perm+0x5d/0x560 [ 84.960001][ T4502] ? security_file_permission+0x75/0xa0 [ 84.965544][ T4502] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.970486][ T4502] vfs_write+0x300/0xd00 [ 84.974996][ T4502] ? file_end_write+0x250/0x250 [ 84.979848][ T4502] ? __context_tracking_exit+0x4c/0x80 [ 84.985317][ T4502] ? __lock_acquire+0x7c60/0x7c60 [ 84.990346][ T4502] ? __fdget_pos+0x1e2/0x370 [ 84.994957][ T4502] ksys_write+0x14d/0x250 [ 84.999296][ T4502] ? __ia32_sys_read+0x80/0x80 [ 85.004097][ T4502] ? lockdep_hardirqs_on+0x94/0x140 [ 85.009304][ T4502] do_syscall_64+0x4c/0xa0 [ 85.013737][ T4502] ? clear_bhb_loop+0x30/0x80 [ 85.018441][ T4502] ? clear_bhb_loop+0x30/0x80 [ 85.023123][ T4502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.029105][ T4502] RIP: 0033:0x7fa0bc59d749 [ 85.033529][ T4502] 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 [ 85.053515][ T4502] RSP: 002b:00007ffd28fb1fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.061952][ T4502] RAX: ffffffffffffffda RBX: 00007fa0bc7f3fa0 RCX: 00007fa0bc59d749 [ 85.069935][ T4502] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 85.078004][ T4502] RBP: 00007fa0bc621f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.085999][ T4502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.093997][ T4502] R13: 00007fa0bc7f3fa0 R14: 00007fa0bc7f3fa0 R15: 0000000000000003 [ 85.101979][ T4502] [ 85.114238][ T4213] Bluetooth: hci0: command 0x041b tx timeout