Warning: Permanently added '10.128.1.103' (ED25519) to the list of known hosts. 2026/04/25 23:35:50 parsed 1 programs [ 64.081004][ T4188] cgroup: Unknown subsys name 'net' [ 64.216101][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 65.709027][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 67.618401][ T4217] chnl_net:caif_netlink_parms(): no params data found [ 67.665840][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.673359][ T4217] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.681643][ T4217] device bridge_slave_0 entered promiscuous mode [ 67.690149][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.697314][ T4217] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.705046][ T4217] device bridge_slave_1 entered promiscuous mode [ 67.727289][ T4217] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.738211][ T4217] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.760194][ T4217] team0: Port device team_slave_0 added [ 67.768596][ T4217] team0: Port device team_slave_1 added [ 67.788932][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.796093][ T4217] 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. [ 67.822041][ T4217] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.835079][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.842159][ T4217] 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. [ 67.868324][ T4217] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.909652][ T4217] device hsr_slave_0 entered promiscuous mode [ 67.916599][ T4217] device hsr_slave_1 entered promiscuous mode [ 68.048084][ T4217] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.059391][ T4217] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.071080][ T4217] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.080942][ T4217] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.108909][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.116167][ T4217] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.124084][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.131201][ T4217] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.193450][ T4217] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.208018][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.218007][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.227678][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.242565][ T4217] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.256359][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.265861][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.273129][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.292095][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.301116][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.308198][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.319745][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.340338][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.349770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.359305][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.370955][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.379477][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.388350][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.403145][ T4217] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.414970][ T4217] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.425212][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.433848][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.442940][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.557694][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.565751][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.581096][ T4217] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.602461][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.612447][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.632874][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.642155][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.651501][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.659384][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.669717][ T4217] device veth0_vlan entered promiscuous mode [ 68.693927][ T4217] device veth1_vlan entered promiscuous mode [ 68.716719][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.726548][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.735530][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.746078][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.756904][ T4217] device veth0_macvtap entered promiscuous mode [ 68.768754][ T4217] device veth1_macvtap entered promiscuous mode [ 68.786715][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.795969][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.804744][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.813260][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.822432][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.834397][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.842660][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.851894][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.863664][ T4217] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.873662][ T4217] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.882658][ T4217] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.893079][ T4217] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.007906][ T4217] syz-executor (4217) used greatest stack depth: 20368 bytes left [ 69.108331][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.121411][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.143336][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.161642][ T4228] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.169498][ T4228] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.178899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.456869][ T661] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.163539][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.170041][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.906599][ T661] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.196353][ T661] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.247436][ T661] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/04/25 23:36:04 executed programs: 0 [ 75.902279][ T661] device hsr_slave_0 left promiscuous mode [ 75.909291][ T661] device hsr_slave_1 left promiscuous mode [ 75.919405][ T661] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.928741][ T661] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.938112][ T661] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.945621][ T661] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.961923][ T661] device bridge_slave_1 left promiscuous mode [ 75.968963][ T661] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.986016][ T661] device bridge_slave_0 left promiscuous mode [ 75.992517][ T661] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.015803][ T661] device veth1_macvtap left promiscuous mode [ 76.022298][ T661] device veth0_macvtap left promiscuous mode [ 76.028411][ T661] device veth1_vlan left promiscuous mode [ 76.035617][ T661] device veth0_vlan left promiscuous mode [ 76.233194][ T661] team0 (unregistering): Port device team_slave_1 removed [ 76.248123][ T661] team0 (unregistering): Port device team_slave_0 removed [ 76.263599][ T661] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.277407][ T661] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.334045][ T661] bond0 (unregistering): Released all slaves [ 76.521946][ T4334] chnl_net:caif_netlink_parms(): no params data found [ 76.598663][ T4334] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.620163][ T4334] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.629123][ T4334] device bridge_slave_0 entered promiscuous mode [ 76.638846][ T4334] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.646375][ T4334] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.654810][ T4334] device bridge_slave_1 entered promiscuous mode [ 76.678548][ T4334] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.690040][ T4334] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.715757][ T4334] team0: Port device team_slave_0 added [ 76.723774][ T4334] team0: Port device team_slave_1 added [ 76.765730][ T4334] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.773223][ T4334] 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. [ 76.801158][ T4334] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.826117][ T4334] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.833317][ T4334] 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. [ 76.860877][ T4334] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.934027][ T4334] device hsr_slave_0 entered promiscuous mode [ 76.942536][ T4334] device hsr_slave_1 entered promiscuous mode [ 77.583625][ T4334] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.603678][ T4334] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.623115][ T4334] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.643791][ T4334] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.766342][ T4334] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.785176][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.800928][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.825163][ T4334] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.838637][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.848234][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.858211][ T4228] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.865340][ T4228] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.872372][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 77.891101][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.899410][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.909518][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.918364][ T4228] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.925465][ T4228] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.937521][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.946610][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.962512][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.982174][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.998579][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.007918][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.035803][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.051164][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.070729][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.084729][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.097841][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.110048][ T4334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.294656][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.305821][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.324233][ T4334] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.373937][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.383715][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.423160][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.432189][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.448386][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.456519][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.466781][ T4334] device veth0_vlan entered promiscuous mode [ 78.479895][ T4334] device veth1_vlan entered promiscuous mode [ 78.505427][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.514078][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.524120][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.533116][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.545826][ T4334] device veth0_macvtap entered promiscuous mode [ 78.557482][ T4334] device veth1_macvtap entered promiscuous mode [ 78.577250][ T4334] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.587445][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.597073][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.605743][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.614690][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.628106][ T4334] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.640605][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.661397][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.682881][ T4334] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.695579][ T4334] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.704950][ T4334] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.713945][ T4334] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.797799][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.817764][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.848402][ T4228] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.863210][ T4228] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.872422][ T4228] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.883195][ T4421] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.011293][ T4424] [ 79.013877][ T4424] ====================================================== [ 79.020913][ T4424] WARNING: possible circular locking dependency detected [ 79.027955][ T4424] syzkaller #0 Not tainted [ 79.032579][ T4424] ------------------------------------------------------ [ 79.039615][ T4424] syz.0.17/4424 is trying to acquire lock: [ 79.045450][ T4424] ffff88805d3a4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.056550][ T4424] [ 79.056550][ T4424] but task is already holding lock: [ 79.063927][ T4424] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 79.073621][ T4424] [ 79.073621][ T4424] which lock already depends on the new lock. [ 79.073621][ T4424] [ 79.084043][ T4424] [ 79.084043][ T4424] the existing dependency chain (in reverse order) is: [ 79.093070][ T4424] [ 79.093070][ T4424] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.101092][ T4424] __mutex_lock_common+0x1e3/0x2400 [ 79.106842][ T4424] mutex_lock_nested+0x17/0x20 [ 79.112156][ T4424] rfkill_register+0x33/0x980 [ 79.117386][ T4424] hci_register_dev+0x452/0x970 [ 79.122817][ T4424] vhci_create_device+0x32c/0x5c0 [ 79.128391][ T4424] vhci_write+0x391/0x450 [ 79.133258][ T4424] vfs_write+0x745/0xd60 [ 79.138046][ T4424] ksys_write+0x152/0x260 [ 79.142922][ T4424] do_syscall_64+0x4c/0xa0 [ 79.147892][ T4424] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.154338][ T4424] [ 79.154338][ T4424] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 79.162186][ T4424] __mutex_lock_common+0x1e3/0x2400 [ 79.167956][ T4424] mutex_lock_nested+0x17/0x20 [ 79.173273][ T4424] vhci_send_frame+0x88/0x100 [ 79.178496][ T4424] hci_send_frame+0x1a9/0x2e0 [ 79.183750][ T4424] hci_tx_work+0x9f9/0x1710 [ 79.188801][ T4424] process_one_work+0x85f/0x1010 [ 79.194284][ T4424] worker_thread+0xaa6/0x1290 [ 79.199506][ T4424] kthread+0x436/0x520 [ 79.204126][ T4424] ret_from_fork+0x1f/0x30 [ 79.209094][ T4424] [ 79.209094][ T4424] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 79.218329][ T4424] __flush_work+0x116/0x210 [ 79.223386][ T4424] hci_dev_do_close+0x1e7/0x1030 [ 79.228871][ T4424] hci_unregister_dev+0x2d7/0x580 [ 79.234454][ T4424] vhci_release+0x73/0xc0 [ 79.239339][ T4424] __fput+0x234/0x930 [ 79.243883][ T4424] task_work_run+0x125/0x1a0 [ 79.249026][ T4424] do_exit+0x626/0x20c0 [ 79.253729][ T4424] do_group_exit+0x12e/0x300 [ 79.258869][ T4424] get_signal+0x6ca/0x12c0 [ 79.263868][ T4424] arch_do_signal_or_restart+0xe7/0x12c0 [ 79.270066][ T4424] exit_to_user_mode_loop+0x9e/0x130 [ 79.275903][ T4424] exit_to_user_mode_prepare+0xee/0x180 [ 79.282004][ T4424] syscall_exit_to_user_mode+0x16/0x40 [ 79.288020][ T4424] do_syscall_64+0x58/0xa0 [ 79.292990][ T4424] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.299440][ T4424] [ 79.299440][ T4424] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 79.307112][ T4424] __mutex_lock_common+0x1e3/0x2400 [ 79.312864][ T4424] mutex_lock_nested+0x17/0x20 [ 79.318182][ T4424] bg_scan_update+0x44/0x3b0 [ 79.323325][ T4424] process_one_work+0x85f/0x1010 [ 79.328825][ T4424] worker_thread+0xaa6/0x1290 [ 79.334058][ T4424] kthread+0x436/0x520 [ 79.338675][ T4424] ret_from_fork+0x1f/0x30 [ 79.343648][ T4424] [ 79.343648][ T4424] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.353504][ T4424] __lock_acquire+0x2c42/0x7d10 [ 79.358910][ T4424] lock_acquire+0x19e/0x400 [ 79.364007][ T4424] __flush_work+0x116/0x210 [ 79.369065][ T4424] __cancel_work_timer+0x3f4/0x560 [ 79.374728][ T4424] hci_request_cancel_all+0xcc/0x300 [ 79.380571][ T4424] hci_dev_do_close+0x4e/0x1030 [ 79.385983][ T4424] hci_rfkill_set_block+0x10a/0x190 [ 79.391741][ T4424] rfkill_set_block+0x1c9/0x3d0 [ 79.397148][ T4424] rfkill_fop_write+0x452/0x560 [ 79.402553][ T4424] vfs_write+0x30b/0xd60 [ 79.407339][ T4424] ksys_write+0x152/0x260 [ 79.412214][ T4424] do_syscall_64+0x4c/0xa0 [ 79.417185][ T4424] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.423641][ T4424] [ 79.423641][ T4424] other info that might help us debug this: [ 79.423641][ T4424] [ 79.433888][ T4424] Chain exists of: [ 79.433888][ T4424] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.433888][ T4424] [ 79.449660][ T4424] Possible unsafe locking scenario: [ 79.449660][ T4424] [ 79.457137][ T4424] CPU0 CPU1 [ 79.462526][ T4424] ---- ---- [ 79.467921][ T4424] lock(rfkill_global_mutex); [ 79.472713][ T4424] lock(&data->open_mutex); [ 79.479852][ T4424] lock(rfkill_global_mutex); [ 79.487168][ T4424] lock((work_completion)(&hdev->bg_scan_update)); [ 79.493867][ T4424] [ 79.493867][ T4424] *** DEADLOCK *** [ 79.493867][ T4424] [ 79.502039][ T4424] 1 lock held by syz.0.17/4424: [ 79.506926][ T4424] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 79.517062][ T4424] [ 79.517062][ T4424] stack backtrace: [ 79.522993][ T4424] CPU: 1 PID: 4424 Comm: syz.0.17 Not tainted syzkaller #0 [ 79.530216][ T4424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 79.540310][ T4424] Call Trace: [ 79.543613][ T4424] [ 79.546566][ T4424] dump_stack_lvl+0x188/0x250 [ 79.551277][ T4424] ? load_image+0x400/0x400 [ 79.555811][ T4424] ? show_regs_print_info+0x20/0x20 [ 79.561050][ T4424] ? print_circular_bug+0x12b/0x1a0 [ 79.566283][ T4424] check_noncircular+0x296/0x330 [ 79.571255][ T4424] ? look_up_lock_class+0x71/0x110 [ 79.576400][ T4424] ? add_chain_block+0x940/0x940 [ 79.581363][ T4424] ? lockdep_lock+0xf1/0x1f0 [ 79.585981][ T4424] ? __lock_acquire+0x12e8/0x7d10 [ 79.591033][ T4424] ? mark_lock+0x94/0x320 [ 79.595388][ T4424] __lock_acquire+0x2c42/0x7d10 [ 79.600277][ T4424] ? verify_lock_unused+0x140/0x140 [ 79.605514][ T4424] ? verify_lock_unused+0x140/0x140 [ 79.610744][ T4424] ? mark_lock+0x94/0x320 [ 79.615108][ T4424] lock_acquire+0x19e/0x400 [ 79.619639][ T4424] ? __flush_work+0xfa/0x210 [ 79.624260][ T4424] ? __lock_acquire+0x7d10/0x7d10 [ 79.629314][ T4424] ? read_lock_is_recursive+0x10/0x10 [ 79.634723][ T4424] ? start_flush_work+0x776/0x820 [ 79.639784][ T4424] __flush_work+0x116/0x210 [ 79.644327][ T4424] ? __flush_work+0xfa/0x210 [ 79.648947][ T4424] ? flush_work+0x20/0x20 [ 79.653307][ T4424] ? try_to_grab_pending+0xfa/0x7f0 [ 79.658544][ T4424] ? mark_lock+0x94/0x320 [ 79.662915][ T4424] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 79.668981][ T4424] ? lock_chain_count+0x20/0x20 [ 79.673872][ T4424] ? mark_lock+0x94/0x320 [ 79.678235][ T4424] ? __cancel_work_timer+0x36a/0x560 [ 79.683555][ T4424] __cancel_work_timer+0x3f4/0x560 [ 79.688699][ T4424] ? cancel_work_sync+0x20/0x20 [ 79.693610][ T4424] ? __cancel_work+0x1f9/0x2e0 [ 79.698401][ T4424] ? lockdep_hardirqs_on+0x94/0x140 [ 79.703722][ T4424] ? __cancel_work+0x27b/0x2e0 [ 79.708514][ T4424] ? cancel_work+0x20/0x20 [ 79.712958][ T4424] ? lock_chain_count+0x20/0x20 [ 79.717837][ T4424] hci_request_cancel_all+0xcc/0x300 [ 79.723165][ T4424] hci_dev_do_close+0x4e/0x1030 [ 79.728046][ T4424] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 79.733970][ T4424] ? _raw_spin_unlock+0x40/0x40 [ 79.738854][ T4424] hci_rfkill_set_block+0x10a/0x190 [ 79.744090][ T4424] ? rcu_lock_release+0x20/0x20 [ 79.748960][ T4424] rfkill_set_block+0x1c9/0x3d0 [ 79.753848][ T4424] rfkill_fop_write+0x452/0x560 [ 79.758721][ T4424] ? rfkill_fop_read+0x520/0x520 [ 79.763685][ T4424] ? common_file_perm+0x140/0x1c0 [ 79.768742][ T4424] ? fsnotify_perm+0x5d/0x560 [ 79.773455][ T4424] ? security_file_permission+0x75/0xa0 [ 79.779169][ T4424] ? rfkill_fop_read+0x520/0x520 [ 79.784148][ T4424] vfs_write+0x30b/0xd60 [ 79.788423][ T4424] ? file_end_write+0x250/0x250 [ 79.793307][ T4424] ? __context_tracking_exit+0x4c/0x80 [ 79.798801][ T4424] ? __lock_acquire+0x7d10/0x7d10 [ 79.803862][ T4424] ? __fdget_pos+0x1e2/0x370 [ 79.808514][ T4424] ksys_write+0x152/0x260 [ 79.812891][ T4424] ? __ia32_sys_read+0x80/0x80 [ 79.817687][ T4424] ? lockdep_hardirqs_on+0x94/0x140 [ 79.822920][ T4424] do_syscall_64+0x4c/0xa0 [ 79.827405][ T4424] ? clear_bhb_loop+0x30/0x80 [ 79.832107][ T4424] ? clear_bhb_loop+0x30/0x80 [ 79.836811][ T4424] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.842746][ T4424] RIP: 0033:0x7ff8c8ebadd9 [ 79.847181][ T4424] 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 [ 79.866824][ T4424] RSP: 002b:00007ffc81bbe3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 79.875259][ T4424] RAX: ffffffffffffffda RBX: 00007ff8c9133fa0 RCX: 00007ff8c8ebadd9 [ 79.883263][ T4424] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 79.891255][ T4424] RBP: 00007ff8c8f50d69 R08: 0000000000000000 R09: 0000000000000000 [ 79.899249][ T4424] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 79.907235][ T4424] R13: 00007ff8c9133fac R14: 00007ff8c9133fa0 R15: 00007ff8c9133fa0 [ 79.915256][ T4424]