Warning: Permanently added '10.128.1.28' (ED25519) to the list of known hosts. 2026/05/25 07:24:54 parsed 1 programs [ 60.427198][ T4197] cgroup: Unknown subsys name 'net' [ 60.597983][ T4197] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 62.063024][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 63.632989][ T4216] chnl_net:caif_netlink_parms(): no params data found [ 63.677525][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.684987][ T4216] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.692612][ T4216] device bridge_slave_0 entered promiscuous mode [ 63.701127][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.708414][ T4216] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.716697][ T4216] device bridge_slave_1 entered promiscuous mode [ 63.736931][ T4216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.748082][ T4216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.771489][ T4216] team0: Port device team_slave_0 added [ 63.778493][ T4216] team0: Port device team_slave_1 added [ 63.794303][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.801240][ T4216] 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. [ 63.827195][ T4216] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.839253][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.846263][ T4216] 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. [ 63.872275][ T4216] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.901619][ T4216] device hsr_slave_0 entered promiscuous mode [ 63.908512][ T4216] device hsr_slave_1 entered promiscuous mode [ 63.994111][ T4216] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.004666][ T4216] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.014201][ T4216] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.023732][ T4216] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.052277][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.059511][ T4216] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.067409][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.074531][ T4216] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.138736][ T4216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.156478][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.168057][ T151] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.176889][ T151] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.185185][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.201375][ T4216] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.213468][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.222383][ T151] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.229502][ T151] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.255636][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.273337][ T151] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.280413][ T151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.292676][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.301355][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.325461][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.343312][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.351723][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.364458][ T4216] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.509854][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.517994][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.532366][ T4216] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.556330][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.579413][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.589703][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.598698][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.609193][ T4216] device veth0_vlan entered promiscuous mode [ 64.622662][ T4216] device veth1_vlan entered promiscuous mode [ 64.654532][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.665596][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.677511][ T4216] device veth0_macvtap entered promiscuous mode [ 64.688327][ T4216] device veth1_macvtap entered promiscuous mode [ 64.705260][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.723663][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.731754][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.741020][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.750717][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.764023][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.771416][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.781748][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.793296][ T4216] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.802126][ T4216] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.811683][ T4216] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.821176][ T4216] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.511078][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.683577][ T508] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.691553][ T508] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.703205][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.722060][ T4224] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.730142][ T4224] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.737812][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/25 07:25:03 executed programs: 0 [ 67.326968][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 67.365187][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.372295][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.380230][ T4290] device bridge_slave_0 entered promiscuous mode [ 67.388009][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.395235][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.403002][ T4290] device bridge_slave_1 entered promiscuous mode [ 67.422943][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.434337][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.455112][ T4290] team0: Port device team_slave_0 added [ 67.462567][ T4290] team0: Port device team_slave_1 added [ 67.478288][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.485417][ T4290] 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. [ 67.511415][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.523491][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.530455][ T4290] 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. [ 67.556655][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.584300][ T4290] device hsr_slave_0 entered promiscuous mode [ 67.590981][ T4290] device hsr_slave_1 entered promiscuous mode [ 67.597589][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.605916][ T4290] Cannot create hsr debugfs directory [ 67.659087][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.293611][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 69.958154][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.000640][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.904489][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.914385][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.923942][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.933505][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.994908][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.018719][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.027377][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.037110][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.048005][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.057038][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.066076][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.073187][ T4224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.081163][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.094016][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.102888][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.111520][ T151] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.118601][ T151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.141176][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.153650][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.165129][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.175922][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.184864][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.203171][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.212055][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.223329][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.231942][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.249226][ T144] device hsr_slave_0 left promiscuous mode [ 71.255952][ T144] device hsr_slave_1 left promiscuous mode [ 71.262576][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.270683][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.279557][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.287058][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.295046][ T144] device bridge_slave_1 left promiscuous mode [ 71.301659][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.315500][ T144] device bridge_slave_0 left promiscuous mode [ 71.321647][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.338136][ T144] device veth1_macvtap left promiscuous mode [ 71.344518][ T144] device veth0_macvtap left promiscuous mode [ 71.350555][ T144] device veth1_vlan left promiscuous mode [ 71.356558][ T144] device veth0_vlan left promiscuous mode [ 71.375815][ T1111] Bluetooth: hci0: command 0x041b tx timeout [ 71.375927][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.389011][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.513889][ T144] team0 (unregistering): Port device team_slave_1 removed [ 71.526931][ T144] team0 (unregistering): Port device team_slave_0 removed [ 71.539576][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 71.552445][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 71.606986][ T144] bond0 (unregistering): Released all slaves [ 71.669646][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.678070][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.689159][ T4290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.795913][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.803881][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.817597][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.844618][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.854213][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.872210][ T4290] device veth0_vlan entered promiscuous mode [ 71.879177][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.887973][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.897204][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.905542][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.918810][ T4290] device veth1_vlan entered promiscuous mode [ 71.935872][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.944553][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.952416][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.960924][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.972156][ T4290] device veth0_macvtap entered promiscuous mode [ 71.986256][ T4290] device veth1_macvtap entered promiscuous mode [ 72.005407][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.023687][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.036577][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.053155][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.061776][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.074250][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.085771][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.095371][ T508] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.107352][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.116466][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.125515][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.134715][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.202589][ T508] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.215127][ T508] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.233472][ T4330] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.251538][ T508] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.262221][ T508] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.271142][ T4330] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 72.443065][ T4335] [ 72.445445][ T4335] ====================================================== [ 72.452472][ T4335] WARNING: possible circular locking dependency detected [ 72.459499][ T4335] syzkaller #0 Not tainted [ 72.463928][ T4335] ------------------------------------------------------ [ 72.470956][ T4335] syz.0.17/4335 is trying to acquire lock: [ 72.476767][ T4335] ffff8880741c8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 72.487840][ T4335] [ 72.487840][ T4335] but task is already holding lock: [ 72.495212][ T4335] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 72.504895][ T4335] [ 72.504895][ T4335] which lock already depends on the new lock. [ 72.504895][ T4335] [ 72.515305][ T4335] [ 72.515305][ T4335] the existing dependency chain (in reverse order) is: [ 72.524328][ T4335] [ 72.524328][ T4335] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 72.532342][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 72.538085][ T4335] mutex_lock_nested+0x17/0x20 [ 72.543390][ T4335] rfkill_register+0x33/0x980 [ 72.548615][ T4335] hci_register_dev+0x452/0x970 [ 72.554007][ T4335] vhci_create_device+0x32c/0x5c0 [ 72.559571][ T4335] vhci_write+0x391/0x450 [ 72.564443][ T4335] vfs_write+0x745/0xd60 [ 72.569226][ T4335] ksys_write+0x152/0x260 [ 72.574093][ T4335] do_syscall_64+0x4c/0xa0 [ 72.579054][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.585491][ T4335] [ 72.585491][ T4335] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 72.593332][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 72.599071][ T4335] mutex_lock_nested+0x17/0x20 [ 72.604369][ T4335] vhci_send_frame+0x88/0x100 [ 72.609582][ T4335] hci_send_frame+0x1a9/0x2e0 [ 72.614788][ T4335] hci_tx_work+0x9f9/0x1710 [ 72.619824][ T4335] process_one_work+0x85f/0x1010 [ 72.625296][ T4335] worker_thread+0xaa6/0x1290 [ 72.630502][ T4335] kthread+0x436/0x520 [ 72.635103][ T4335] ret_from_fork+0x1f/0x30 [ 72.640053][ T4335] [ 72.640053][ T4335] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 72.649273][ T4335] __flush_work+0x116/0x210 [ 72.654305][ T4335] hci_dev_do_close+0x1e7/0x1030 [ 72.659771][ T4335] hci_unregister_dev+0x2d7/0x580 [ 72.665330][ T4335] vhci_release+0x73/0xc0 [ 72.670193][ T4335] __fput+0x234/0x930 [ 72.674709][ T4335] task_work_run+0x125/0x1a0 [ 72.679834][ T4335] do_exit+0x626/0x20c0 [ 72.684516][ T4335] do_group_exit+0x12e/0x300 [ 72.689637][ T4335] get_signal+0x6d6/0x12d0 [ 72.694581][ T4335] arch_do_signal_or_restart+0xe7/0x12c0 [ 72.700764][ T4335] exit_to_user_mode_loop+0x9e/0x130 [ 72.706587][ T4335] exit_to_user_mode_prepare+0xee/0x180 [ 72.712660][ T4335] syscall_exit_to_user_mode+0x16/0x40 [ 72.718654][ T4335] do_syscall_64+0x58/0xa0 [ 72.723601][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.730017][ T4335] [ 72.730017][ T4335] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 72.737657][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 72.743375][ T4335] mutex_lock_nested+0x17/0x20 [ 72.748659][ T4335] bg_scan_update+0x44/0x3b0 [ 72.753765][ T4335] process_one_work+0x85f/0x1010 [ 72.759222][ T4335] worker_thread+0xaa6/0x1290 [ 72.764415][ T4335] kthread+0x436/0x520 [ 72.769004][ T4335] ret_from_fork+0x1f/0x30 [ 72.773938][ T4335] [ 72.773938][ T4335] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 72.783754][ T4335] __lock_acquire+0x2c42/0x7d10 [ 72.789127][ T4335] lock_acquire+0x19e/0x400 [ 72.794146][ T4335] __flush_work+0x116/0x210 [ 72.799166][ T4335] __cancel_work_timer+0x3f4/0x560 [ 72.804796][ T4335] hci_request_cancel_all+0xcc/0x300 [ 72.810598][ T4335] hci_dev_do_close+0x4e/0x1030 [ 72.815968][ T4335] hci_rfkill_set_block+0x10a/0x190 [ 72.821684][ T4335] rfkill_set_block+0x1c9/0x3d0 [ 72.827056][ T4335] rfkill_fop_write+0x452/0x560 [ 72.832420][ T4335] vfs_write+0x30b/0xd60 [ 72.837178][ T4335] ksys_write+0x152/0x260 [ 72.842024][ T4335] do_syscall_64+0x4c/0xa0 [ 72.846961][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.853377][ T4335] [ 72.853377][ T4335] other info that might help us debug this: [ 72.853377][ T4335] [ 72.863599][ T4335] Chain exists of: [ 72.863599][ T4335] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 72.863599][ T4335] [ 72.879316][ T4335] Possible unsafe locking scenario: [ 72.879316][ T4335] [ 72.886761][ T4335] CPU0 CPU1 [ 72.892119][ T4335] ---- ---- [ 72.897474][ T4335] lock(rfkill_global_mutex); [ 72.902235][ T4335] lock(&data->open_mutex); [ 72.909339][ T4335] lock(rfkill_global_mutex); [ 72.916615][ T4335] lock((work_completion)(&hdev->bg_scan_update)); [ 72.923199][ T4335] [ 72.923199][ T4335] *** DEADLOCK *** [ 72.923199][ T4335] [ 72.931336][ T4335] 1 lock held by syz.0.17/4335: [ 72.936178][ T4335] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 72.946269][ T4335] [ 72.946269][ T4335] stack backtrace: [ 72.952151][ T4335] CPU: 0 PID: 4335 Comm: syz.0.17 Not tainted syzkaller #0 [ 72.959341][ T4335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 72.969390][ T4335] Call Trace: [ 72.972666][ T4335] [ 72.975598][ T4335] dump_stack_lvl+0x188/0x250 [ 72.980272][ T4335] ? load_image+0x400/0x400 [ 72.985017][ T4335] ? show_regs_print_info+0x20/0x20 [ 72.990242][ T4335] ? print_circular_bug+0x12b/0x1a0 [ 72.995439][ T4335] check_noncircular+0x296/0x330 [ 73.000373][ T4335] ? look_up_lock_class+0x71/0x110 [ 73.005484][ T4335] ? add_chain_block+0x940/0x940 [ 73.010417][ T4335] ? lockdep_lock+0xf1/0x1f0 [ 73.015009][ T4335] ? __lock_acquire+0x12e8/0x7d10 [ 73.020034][ T4335] ? mark_lock+0x94/0x320 [ 73.024362][ T4335] __lock_acquire+0x2c42/0x7d10 [ 73.029219][ T4335] ? verify_lock_unused+0x140/0x140 [ 73.034418][ T4335] ? verify_lock_unused+0x140/0x140 [ 73.039615][ T4335] ? mark_lock+0x94/0x320 [ 73.043946][ T4335] lock_acquire+0x19e/0x400 [ 73.048450][ T4335] ? __flush_work+0xfa/0x210 [ 73.053040][ T4335] ? __lock_acquire+0x7d10/0x7d10 [ 73.058070][ T4335] ? read_lock_is_recursive+0x10/0x10 [ 73.063442][ T4335] ? start_flush_work+0x776/0x820 [ 73.068465][ T4335] __flush_work+0x116/0x210 [ 73.072967][ T4335] ? __flush_work+0xfa/0x210 [ 73.077555][ T4335] ? flush_work+0x20/0x20 [ 73.081880][ T4335] ? try_to_grab_pending+0xfa/0x7f0 [ 73.087074][ T4335] ? mark_lock+0x94/0x320 [ 73.091401][ T4335] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 73.097379][ T4335] ? lock_chain_count+0x20/0x20 [ 73.102229][ T4335] ? mark_lock+0x94/0x320 [ 73.106553][ T4335] ? __cancel_work_timer+0x36a/0x560 [ 73.111837][ T4335] __cancel_work_timer+0x3f4/0x560 [ 73.116947][ T4335] ? cancel_work_sync+0x20/0x20 [ 73.121794][ T4335] ? __cancel_work+0x1f9/0x2e0 [ 73.126555][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 73.131754][ T4335] ? __cancel_work+0x27b/0x2e0 [ 73.136515][ T4335] ? cancel_work+0x20/0x20 [ 73.140931][ T4335] ? lock_chain_count+0x20/0x20 [ 73.145785][ T4335] hci_request_cancel_all+0xcc/0x300 [ 73.151073][ T4335] hci_dev_do_close+0x4e/0x1030 [ 73.155922][ T4335] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 73.161812][ T4335] ? _raw_spin_unlock+0x40/0x40 [ 73.166660][ T4335] hci_rfkill_set_block+0x10a/0x190 [ 73.171859][ T4335] ? rcu_lock_release+0x20/0x20 [ 73.176708][ T4335] rfkill_set_block+0x1c9/0x3d0 [ 73.181565][ T4335] rfkill_fop_write+0x452/0x560 [ 73.186412][ T4335] ? rfkill_fop_read+0x520/0x520 [ 73.191345][ T4335] ? common_file_perm+0xc0/0x1c0 [ 73.196285][ T4335] ? fsnotify_perm+0x5d/0x560 [ 73.200961][ T4335] ? security_file_permission+0x75/0xa0 [ 73.206505][ T4335] ? rfkill_fop_read+0x520/0x520 [ 73.211441][ T4335] vfs_write+0x30b/0xd60 [ 73.215683][ T4335] ? file_end_write+0x250/0x250 [ 73.220533][ T4335] ? __context_tracking_exit+0x4c/0x80 [ 73.225993][ T4335] ? __lock_acquire+0x7d10/0x7d10 [ 73.231016][ T4335] ? __fdget_pos+0x1e2/0x370 [ 73.235605][ T4335] ksys_write+0x152/0x260 [ 73.239935][ T4335] ? __ia32_sys_read+0x80/0x80 [ 73.244708][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 73.249908][ T4335] do_syscall_64+0x4c/0xa0 [ 73.254321][ T4335] ? clear_bhb_loop+0x30/0x80 [ 73.258997][ T4335] ? clear_bhb_loop+0x30/0x80 [ 73.263670][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.269569][ T4335] RIP: 0033:0x7fc9adb54e59 [ 73.273979][ T4335] 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 [ 73.293582][ T4335] RSP: 002b:00007ffeba637258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 73.301997][ T4335] RAX: ffffffffffffffda RBX: 00007fc9addcdfa0 RCX: 00007fc9adb54e59 [ 73.309969][ T4335] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 73.317940][ T4335] RBP: 00007fc9adbead6f R08: 0000000000000000 R09: 0000000000000000 [ 73.325927][ T4335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 73.333893][ T4335] R13: 00007fc9addcdfac R14: 00007fc9addcdfa0 R15: 00007fc9addcdfa0 [ 73.341868][ T4335]