Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. 2026/07/15 00:28:54 parsed 1 programs 2026/07/15 00:28:54 serving rpc on tcp://37757 [ 66.915301][ T4197] cgroup: Unknown subsys name 'net' [ 67.052756][ T4197] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.467370][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.103295][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.111769][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.125942][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.143465][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.151345][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.161175][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.010766][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.017699][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.384437][ T4248] chnl_net:caif_netlink_parms(): no params data found [ 71.441114][ T4248] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.448765][ T4248] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.457182][ T4248] device bridge_slave_0 entered promiscuous mode [ 71.466415][ T4248] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.473871][ T4248] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.482122][ T4248] device bridge_slave_1 entered promiscuous mode [ 71.503433][ T4248] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.514502][ T4248] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.542189][ T4248] team0: Port device team_slave_0 added [ 71.549763][ T4248] team0: Port device team_slave_1 added [ 71.570172][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.577335][ T4248] 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. [ 71.603342][ T4248] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.615830][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.622974][ T4248] 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. [ 71.649294][ T4248] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.685775][ T4248] device hsr_slave_0 entered promiscuous mode [ 71.693430][ T4248] device hsr_slave_1 entered promiscuous mode [ 71.815660][ T4248] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.826190][ T4248] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.835667][ T4248] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.844624][ T4248] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.882270][ T4248] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.892800][ T4248] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.902170][ T4248] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.909298][ T4248] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.989372][ T4248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.013676][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.023306][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.032582][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.063275][ T4248] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.073625][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.082216][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.089351][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.102111][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.110817][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.117935][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.139561][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.149248][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.157913][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.169685][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.181169][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.192031][ T4248] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.274001][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.281547][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.294977][ T4248] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.311718][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.321150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.338292][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.346688][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.355471][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.364319][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.389792][ T4248] device veth0_vlan entered promiscuous mode [ 72.401082][ T4248] device veth1_vlan entered promiscuous mode [ 72.418368][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.426369][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.435112][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.444406][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.454742][ T4248] device veth0_macvtap entered promiscuous mode [ 72.465342][ T4248] device veth1_macvtap entered promiscuous mode [ 72.495313][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.502917][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.510947][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.519188][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.528376][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.539792][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.549608][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.558416][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.583013][ T4248] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.592013][ T4248] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.601457][ T4248] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.610388][ T4248] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.725097][ T4248] syz-executor (4248) used greatest stack depth: 20336 bytes left 2026/07/15 00:29:03 executed programs: 0 [ 74.043386][ T4303] chnl_net:caif_netlink_parms(): no params data found [ 74.104788][ T4303] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.114188][ T4303] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.123599][ T4303] device bridge_slave_0 entered promiscuous mode [ 74.136201][ T4303] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.143420][ T4303] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.154032][ T4303] device bridge_slave_1 entered promiscuous mode [ 74.180024][ T4303] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.191584][ T4303] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.224027][ T4303] team0: Port device team_slave_0 added [ 74.231723][ T4303] team0: Port device team_slave_1 added [ 74.254915][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.264171][ T4303] 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. [ 74.293203][ T4303] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.306204][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.315569][ T4303] 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. [ 74.343985][ T4303] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.382639][ T4303] device hsr_slave_0 entered promiscuous mode [ 74.389797][ T4303] device hsr_slave_1 entered promiscuous mode [ 74.396477][ T4303] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.404942][ T4303] Cannot create hsr debugfs directory [ 74.490473][ T4303] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.967363][ T4268] Bluetooth: hci0: command 0x0409 tx timeout [ 77.343705][ T4303] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.422962][ T4303] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.485226][ T4303] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.555452][ T4303] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.569852][ T4303] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.578813][ T4303] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.588010][ T4303] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.633998][ T4303] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.646434][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.654453][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.664322][ T4303] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.674094][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.684192][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.692824][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.699936][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.708420][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.735263][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.743976][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.752676][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.759751][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.771874][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.802075][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.812788][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.822742][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.832203][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.862782][ T4303] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.874012][ T4303] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.885691][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.895744][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.904198][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.915570][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.924253][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.932705][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.941154][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.034362][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.042206][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.058533][ T4269] Bluetooth: hci0: command 0x041b tx timeout [ 78.078195][ T4303] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.093211][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.103351][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.138190][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.146414][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.155121][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.162972][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.173799][ T4303] device veth0_vlan entered promiscuous mode [ 78.185562][ T4303] device veth1_vlan entered promiscuous mode [ 78.219363][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.227453][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.235392][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.244328][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.255378][ T4303] device veth0_macvtap entered promiscuous mode [ 78.275105][ T4303] device veth1_macvtap entered promiscuous mode [ 78.289757][ T4303] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 78.300624][ T4303] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.311200][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.319774][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.328374][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.336213][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.344898][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.361125][ T1483] device hsr_slave_0 left promiscuous mode [ 78.368008][ T1483] device hsr_slave_1 left promiscuous mode [ 78.374872][ T1483] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.382717][ T1483] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.391104][ T1483] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.398582][ T1483] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.406098][ T1483] device bridge_slave_1 left promiscuous mode [ 78.412949][ T1483] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.425494][ T1483] device bridge_slave_0 left promiscuous mode [ 78.432133][ T1483] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.450061][ T1483] device veth1_macvtap left promiscuous mode [ 78.456297][ T1483] device veth0_macvtap left promiscuous mode [ 78.462930][ T1483] device veth1_vlan left promiscuous mode [ 78.468920][ T1483] device veth0_vlan left promiscuous mode [ 78.621135][ T1483] team0 (unregistering): Port device team_slave_1 removed [ 78.634136][ T1483] team0 (unregistering): Port device team_slave_0 removed [ 78.647933][ T1483] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.661562][ T1483] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.721182][ T1483] bond0 (unregistering): Released all slaves [ 78.781551][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.792952][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.802068][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.818287][ T4303] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.827511][ T4303] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.837274][ T4303] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.846006][ T4303] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.899217][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.909246][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.917353][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.943735][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.952168][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.961707][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.049175][ T4320] [ 79.051538][ T4320] ====================================================== [ 79.058573][ T4320] WARNING: possible circular locking dependency detected [ 79.065609][ T4320] syzkaller #0 Not tainted [ 79.070027][ T4320] ------------------------------------------------------ [ 79.077052][ T4320] syz.0.17/4320 is trying to acquire lock: [ 79.082954][ T4320] ffff88801ed15028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.094028][ T4320] [ 79.094028][ T4320] but task is already holding lock: [ 79.101392][ T4320] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 79.111072][ T4320] [ 79.111072][ T4320] which lock already depends on the new lock. [ 79.111072][ T4320] [ 79.121481][ T4320] [ 79.121481][ T4320] the existing dependency chain (in reverse order) is: [ 79.130499][ T4320] [ 79.130499][ T4320] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.138511][ T4320] __mutex_lock_common+0x1e5/0x2400 [ 79.144251][ T4320] mutex_lock_nested+0x17/0x20 [ 79.149572][ T4320] rfkill_register+0x2f/0x970 [ 79.154795][ T4320] hci_register_dev+0x459/0x980 [ 79.160188][ T4320] vhci_create_device+0x32e/0x5c0 [ 79.165752][ T4320] vhci_write+0x389/0x440 [ 79.170628][ T4320] vfs_write+0x748/0xd70 [ 79.175419][ T4320] ksys_write+0x153/0x260 [ 79.180287][ T4320] do_syscall_64+0x4c/0xa0 [ 79.185243][ T4320] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.191675][ T4320] [ 79.191675][ T4320] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 79.199516][ T4320] __mutex_lock_common+0x1e5/0x2400 [ 79.205260][ T4320] mutex_lock_nested+0x17/0x20 [ 79.210570][ T4320] vhci_send_frame+0x88/0x100 [ 79.215794][ T4320] hci_send_frame+0x1a9/0x2e0 [ 79.221014][ T4320] hci_tx_work+0x9b5/0x16d0 [ 79.226050][ T4320] process_one_work+0x867/0xff0 [ 79.231439][ T4320] worker_thread+0xad7/0x12a0 [ 79.236660][ T4320] kthread+0x42e/0x520 [ 79.241278][ T4320] ret_from_fork+0x1f/0x30 [ 79.246251][ T4320] [ 79.246251][ T4320] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 79.255527][ T4320] __flush_work+0x116/0x210 [ 79.260579][ T4320] hci_dev_do_close+0x201/0x1020 [ 79.266067][ T4320] hci_unregister_dev+0x2eb/0x590 [ 79.271631][ T4320] vhci_release+0x73/0xc0 [ 79.276500][ T4320] __fput+0x212/0x8c0 [ 79.281028][ T4320] task_work_run+0x125/0x1a0 [ 79.286155][ T4320] do_exit+0x635/0x2110 [ 79.290843][ T4320] do_group_exit+0x12c/0x2f0 [ 79.295966][ T4320] get_signal+0x7eb/0x12e0 [ 79.300917][ T4320] arch_do_signal_or_restart+0xe6/0x12a0 [ 79.307087][ T4320] exit_to_user_mode_loop+0x9e/0x130 [ 79.312919][ T4320] exit_to_user_mode_prepare+0xee/0x180 [ 79.319009][ T4320] syscall_exit_to_user_mode+0x16/0x40 [ 79.325024][ T4320] do_syscall_64+0x58/0xa0 [ 79.329981][ T4320] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.336418][ T4320] [ 79.336418][ T4320] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 79.344094][ T4320] __mutex_lock_common+0x1e5/0x2400 [ 79.349832][ T4320] mutex_lock_nested+0x17/0x20 [ 79.355168][ T4320] bg_scan_update+0x44/0x3b0 [ 79.360294][ T4320] process_one_work+0x867/0xff0 [ 79.365715][ T4320] worker_thread+0xad7/0x12a0 [ 79.370928][ T4320] kthread+0x42e/0x520 [ 79.375557][ T4320] ret_from_fork+0x1f/0x30 [ 79.380532][ T4320] [ 79.380532][ T4320] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.390360][ T4320] __lock_acquire+0x2c66/0x7b50 [ 79.395751][ T4320] lock_acquire+0x19e/0x400 [ 79.400792][ T4320] __flush_work+0x116/0x210 [ 79.405851][ T4320] __cancel_work_timer+0x3f4/0x560 [ 79.411523][ T4320] hci_request_cancel_all+0xcc/0x300 [ 79.417348][ T4320] hci_dev_do_close+0x4e/0x1020 [ 79.422770][ T4320] hci_rfkill_set_block+0x101/0x180 [ 79.428505][ T4320] rfkill_set_block+0x1c1/0x3c0 [ 79.433888][ T4320] rfkill_fop_write+0x453/0x560 [ 79.439301][ T4320] vfs_write+0x304/0xd70 [ 79.444084][ T4320] ksys_write+0x153/0x260 [ 79.448970][ T4320] do_syscall_64+0x4c/0xa0 [ 79.453918][ T4320] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.460341][ T4320] [ 79.460341][ T4320] other info that might help us debug this: [ 79.460341][ T4320] [ 79.470577][ T4320] Chain exists of: [ 79.470577][ T4320] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.470577][ T4320] [ 79.486335][ T4320] Possible unsafe locking scenario: [ 79.486335][ T4320] [ 79.493795][ T4320] CPU0 CPU1 [ 79.499279][ T4320] ---- ---- [ 79.504659][ T4320] lock(rfkill_global_mutex); [ 79.509443][ T4320] lock(&data->open_mutex); [ 79.516566][ T4320] lock(rfkill_global_mutex); [ 79.523883][ T4320] lock((work_completion)(&hdev->bg_scan_update)); [ 79.530484][ T4320] [ 79.530484][ T4320] *** DEADLOCK *** [ 79.530484][ T4320] [ 79.538637][ T4320] 1 lock held by syz.0.17/4320: [ 79.543494][ T4320] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 79.553622][ T4320] [ 79.553622][ T4320] stack backtrace: [ 79.559535][ T4320] CPU: 1 PID: 4320 Comm: syz.0.17 Not tainted syzkaller #0 [ 79.566757][ T4320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 79.576839][ T4320] Call Trace: [ 79.580272][ T4320] [ 79.583217][ T4320] dump_stack_lvl+0x188/0x250 [ 79.587922][ T4320] ? load_image+0x410/0x410 [ 79.592470][ T4320] ? show_regs_print_info+0x20/0x20 [ 79.597689][ T4320] ? print_circular_bug+0x12b/0x1a0 [ 79.602910][ T4320] check_noncircular+0x296/0x330 [ 79.607865][ T4320] ? look_up_lock_class+0x71/0x110 [ 79.613002][ T4320] ? add_chain_block+0x9b0/0x9b0 [ 79.617955][ T4320] ? lockdep_lock+0xf1/0x1f0 [ 79.622583][ T4320] ? __lock_acquire+0x1305/0x7b50 [ 79.627628][ T4320] ? mark_lock+0x94/0x320 [ 79.631976][ T4320] ? _find_first_zero_bit+0xd1/0xf0 [ 79.637196][ T4320] __lock_acquire+0x2c66/0x7b50 [ 79.642087][ T4320] ? verify_lock_unused+0x140/0x140 [ 79.647310][ T4320] ? verify_lock_unused+0x140/0x140 [ 79.652545][ T4320] lock_acquire+0x19e/0x400 [ 79.657166][ T4320] ? __flush_work+0xfa/0x210 [ 79.661787][ T4320] ? __lock_acquire+0x7b50/0x7b50 [ 79.666834][ T4320] ? read_lock_is_recursive+0x10/0x10 [ 79.672245][ T4320] ? start_flush_work+0x784/0x830 [ 79.677307][ T4320] __flush_work+0x116/0x210 [ 79.681846][ T4320] ? __flush_work+0xfa/0x210 [ 79.686466][ T4320] ? flush_work+0x20/0x20 [ 79.690825][ T4320] ? try_to_grab_pending+0xfb/0x820 [ 79.696045][ T4320] ? mark_lock+0x94/0x320 [ 79.700390][ T4320] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 79.706401][ T4320] ? lock_chain_count+0x20/0x20 [ 79.711290][ T4320] ? mark_lock+0x94/0x320 [ 79.715665][ T4320] ? __cancel_work_timer+0x36a/0x560 [ 79.720971][ T4320] __cancel_work_timer+0x3f4/0x560 [ 79.726113][ T4320] ? cancel_work_sync+0x20/0x20 [ 79.730995][ T4320] ? __cancel_work+0x1f9/0x2e0 [ 79.735788][ T4320] ? lockdep_hardirqs_on+0x94/0x140 [ 79.741015][ T4320] ? __cancel_work+0x27b/0x2e0 [ 79.745892][ T4320] ? cancel_work+0x20/0x20 [ 79.750341][ T4320] hci_request_cancel_all+0xcc/0x300 [ 79.755668][ T4320] hci_dev_do_close+0x4e/0x1020 [ 79.760546][ T4320] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 79.766472][ T4320] ? _raw_spin_unlock+0x40/0x40 [ 79.771356][ T4320] hci_rfkill_set_block+0x101/0x180 [ 79.776585][ T4320] ? rcu_lock_release+0x20/0x20 [ 79.781482][ T4320] rfkill_set_block+0x1c1/0x3c0 [ 79.786375][ T4320] rfkill_fop_write+0x453/0x560 [ 79.791257][ T4320] ? rfkill_fop_read+0x560/0x560 [ 79.796220][ T4320] ? common_file_perm+0xf0/0x1c0 [ 79.801215][ T4320] ? fsnotify_perm+0x5d/0x560 [ 79.805938][ T4320] ? security_file_permission+0x75/0xa0 [ 79.811509][ T4320] ? rfkill_fop_read+0x560/0x560 [ 79.816471][ T4320] vfs_write+0x304/0xd70 [ 79.820740][ T4320] ? file_end_write+0x250/0x250 [ 79.825611][ T4320] ? __context_tracking_exit+0x4c/0x80 [ 79.831102][ T4320] ? __fdget_pos+0x1e2/0x370 [ 79.835739][ T4320] ksys_write+0x153/0x260 [ 79.840103][ T4320] ? __ia32_sys_read+0x80/0x80 [ 79.844910][ T4320] ? lockdep_hardirqs_on+0x94/0x140 [ 79.850125][ T4320] do_syscall_64+0x4c/0xa0 [ 79.854584][ T4320] ? clear_bhb_loop+0x30/0x80 [ 79.859277][ T4320] ? clear_bhb_loop+0x30/0x80 [ 79.863979][ T4320] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.869896][ T4320] RIP: 0033:0x7efe109dee59 [ 79.874348][ T4320] 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 [ 79.893967][ T4320] RSP: 002b:00007ffe03421a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 79.902393][ T4320] RAX: ffffffffffffffda RBX: 00007efe10c66fa0 RCX: 00007efe109dee59 [ 79.910379][ T4320] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 79.918367][ T4320] RBP: 00007efe10a74e6f R08: 0000000000000000 R09: 0000000000000000 [ 79.926376][ T4320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 79.934373][ T4320] R13: 00007efe10c66fac R14: 00007efe10c66fa0 R15: 00007efe10c66fa0 [ 79.942372][ T4320]