Warning: Permanently added '10.128.0.146' (ED25519) to the list of known hosts. 2025/08/01 05:00:07 ignoring optional flag "sandboxArg"="0" 2025/08/01 05:00:08 parsed 1 programs [ 53.349836][ T4187] cgroup: Unknown subsys name 'net' [ 53.515042][ T4187] cgroup: Unknown subsys name 'rlimit' [ 54.758999][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 56.296324][ T4199] chnl_net:caif_netlink_parms(): no params data found [ 56.338140][ T4199] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.345797][ T4199] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.353964][ T4199] device bridge_slave_0 entered promiscuous mode [ 56.365532][ T4199] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.372784][ T4199] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.381379][ T4199] device bridge_slave_1 entered promiscuous mode [ 56.401599][ T4199] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.415147][ T4199] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.436420][ T4199] team0: Port device team_slave_0 added [ 56.443790][ T4199] team0: Port device team_slave_1 added [ 56.463903][ T4199] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.471058][ T4199] 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. [ 56.497558][ T4199] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.510637][ T4199] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.517713][ T4199] 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. [ 56.544288][ T4199] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.576039][ T4199] device hsr_slave_0 entered promiscuous mode [ 56.583205][ T4199] device hsr_slave_1 entered promiscuous mode [ 56.704700][ T4199] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.717729][ T4199] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.729864][ T4199] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.741400][ T4199] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.789546][ T4199] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.796800][ T4199] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.804992][ T4199] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.812238][ T4199] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.871661][ T4199] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.888287][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.902466][ T150] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.911825][ T150] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.922341][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.936559][ T4199] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.949487][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.958807][ T150] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.966065][ T150] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.994059][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.003425][ T150] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.010571][ T150] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.020634][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.039586][ T4199] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.050319][ T4199] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.064957][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.074374][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.083087][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.095391][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.111852][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.222746][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.232161][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.248084][ T4199] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.273102][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.294557][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.304527][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.317066][ T4199] device veth0_vlan entered promiscuous mode [ 57.325697][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.334780][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.348126][ T4199] device veth1_vlan entered promiscuous mode [ 57.374115][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.383999][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.393795][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.410545][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.421336][ T4199] device veth0_macvtap entered promiscuous mode [ 57.434137][ T4199] device veth1_macvtap entered promiscuous mode [ 57.451920][ T4199] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.459774][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.468661][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.477836][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.488042][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.499316][ T4199] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.512447][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.522234][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.533195][ T4199] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.542242][ T4199] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.551488][ T4199] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.560534][ T4199] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.658477][ T4199] syz-executor (4199) used greatest stack depth: 20128 bytes left [ 57.768862][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.955000][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.304673][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.346856][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.390875][ T144] device hsr_slave_0 left promiscuous mode [ 63.407649][ T144] device hsr_slave_1 left promiscuous mode [ 63.427681][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 63.444082][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 63.453717][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 63.462671][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 63.471022][ T144] device bridge_slave_1 left promiscuous mode [ 63.478326][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.496153][ T144] device bridge_slave_0 left promiscuous mode [ 63.502637][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.526193][ T144] device veth1_macvtap left promiscuous mode [ 63.532716][ T144] device veth0_macvtap left promiscuous mode [ 63.538835][ T144] device veth1_vlan left promiscuous mode [ 63.547487][ T144] device veth0_vlan left promiscuous mode [ 63.705016][ T144] team0 (unregistering): Port device team_slave_1 removed [ 63.716788][ T144] team0 (unregistering): Port device team_slave_0 removed [ 63.731553][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 63.744155][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 63.789003][ T144] bond0 (unregistering): Released all slaves [ 64.122483][ T150] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.138933][ T150] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.152090][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.174587][ T150] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.184727][ T150] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.205208][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/01 05:00:22 executed programs: 0 [ 65.591324][ T4373] chnl_net:caif_netlink_parms(): no params data found [ 65.695480][ T4373] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.702710][ T4373] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.712050][ T4373] device bridge_slave_0 entered promiscuous mode [ 65.720629][ T4373] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.728020][ T4373] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.736547][ T4373] device bridge_slave_1 entered promiscuous mode [ 65.761786][ T4373] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.773975][ T4373] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.815252][ T4373] team0: Port device team_slave_0 added [ 65.832594][ T4373] team0: Port device team_slave_1 added [ 65.879190][ T4373] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.897743][ T4373] 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. [ 65.923963][ T4373] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.940544][ T4373] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.947675][ T4373] 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. [ 65.974158][ T4373] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.031689][ T4373] device hsr_slave_0 entered promiscuous mode [ 66.041639][ T4373] device hsr_slave_1 entered promiscuous mode [ 66.749096][ T4373] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.759076][ T4373] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.770012][ T4373] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.779309][ T4373] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.915689][ T4373] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.961539][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.969273][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.982486][ T4373] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.030432][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.043852][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.052478][ T4333] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.059555][ T4333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.070258][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.080254][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.089308][ T4333] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.096723][ T4333] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.105090][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.114956][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.157816][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.167708][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.178048][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.195669][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.203967][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.212810][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.221463][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.230293][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.257483][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.266384][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.278741][ T4373] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.410740][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 67.417175][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.426413][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.438470][ T4373] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.461492][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.471110][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.491872][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.503212][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.515265][ T4373] device veth0_vlan entered promiscuous mode [ 67.550490][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.558510][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.572988][ T4373] device veth1_vlan entered promiscuous mode [ 67.597172][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.608329][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.619371][ T4373] device veth0_macvtap entered promiscuous mode [ 67.652334][ T4373] device veth1_macvtap entered promiscuous mode [ 67.671276][ T4373] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.682173][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.690521][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.698588][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.707845][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.720163][ T4373] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.741322][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.751953][ T4333] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.770784][ T4373] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.784912][ T4373] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.794650][ T4373] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.804663][ T4373] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.943225][ T4333] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.960706][ T4333] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.969901][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.993452][ T150] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.020782][ T150] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.030379][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.166463][ T4515] [ 68.168815][ T4515] ====================================================== [ 68.175825][ T4515] WARNING: possible circular locking dependency detected [ 68.182851][ T4515] 5.15.189-syzkaller #0 Not tainted [ 68.188039][ T4515] ------------------------------------------------------ [ 68.195044][ T4515] syz.0.17/4515 is trying to acquire lock: [ 68.200853][ T4515] ffff88807d530c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 68.212089][ T4515] [ 68.212089][ T4515] but task is already holding lock: [ 68.219443][ T4515] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 68.229102][ T4515] [ 68.229102][ T4515] which lock already depends on the new lock. [ 68.229102][ T4515] [ 68.239503][ T4515] [ 68.239503][ T4515] the existing dependency chain (in reverse order) is: [ 68.248602][ T4515] [ 68.248602][ T4515] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 68.256604][ T4515] __mutex_lock_common+0x1eb/0x2390 [ 68.262358][ T4515] mutex_lock_nested+0x17/0x20 [ 68.267674][ T4515] rfkill_register+0x33/0x8a0 [ 68.272883][ T4515] hci_register_dev+0x452/0x970 [ 68.278264][ T4515] vhci_create_device+0x32c/0x5c0 [ 68.283808][ T4515] vhci_write+0x391/0x450 [ 68.288654][ T4515] vfs_write+0x712/0xd00 [ 68.293410][ T4515] ksys_write+0x14d/0x250 [ 68.298248][ T4515] do_syscall_64+0x4c/0xa0 [ 68.303176][ T4515] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.309590][ T4515] [ 68.309590][ T4515] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 68.317602][ T4515] __mutex_lock_common+0x1eb/0x2390 [ 68.323639][ T4515] mutex_lock_nested+0x17/0x20 [ 68.328932][ T4515] vhci_send_frame+0x88/0x100 [ 68.334228][ T4515] hci_send_frame+0x1a9/0x2e0 [ 68.339506][ T4515] hci_tx_work+0x9f9/0x1710 [ 68.344644][ T4515] process_one_work+0x863/0x1000 [ 68.350198][ T4515] worker_thread+0xaa8/0x12a0 [ 68.355510][ T4515] kthread+0x436/0x520 [ 68.360465][ T4515] ret_from_fork+0x1f/0x30 [ 68.365525][ T4515] [ 68.365525][ T4515] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 68.374945][ T4515] __flush_work+0xdd/0x1b0 [ 68.379891][ T4515] hci_dev_do_close+0x1e7/0x1030 [ 68.385348][ T4515] hci_unregister_dev+0x2d7/0x580 [ 68.390890][ T4515] vhci_release+0x73/0xc0 [ 68.395732][ T4515] __fput+0x234/0x930 [ 68.400215][ T4515] task_work_run+0x125/0x1a0 [ 68.405394][ T4515] do_exit+0x61e/0x20a0 [ 68.410048][ T4515] do_group_exit+0x12e/0x300 [ 68.415143][ T4515] get_signal+0x6ca/0x12c0 [ 68.420065][ T4515] arch_do_signal_or_restart+0xc1/0x1300 [ 68.426319][ T4515] exit_to_user_mode_loop+0x9e/0x130 [ 68.432111][ T4515] exit_to_user_mode_prepare+0xb1/0x140 [ 68.438156][ T4515] syscall_exit_to_user_mode+0x16/0x40 [ 68.444117][ T4515] do_syscall_64+0x58/0xa0 [ 68.449044][ T4515] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.455444][ T4515] [ 68.455444][ T4515] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 68.463060][ T4515] __mutex_lock_common+0x1eb/0x2390 [ 68.468849][ T4515] mutex_lock_nested+0x17/0x20 [ 68.474122][ T4515] bg_scan_update+0x44/0x3b0 [ 68.479214][ T4515] process_one_work+0x863/0x1000 [ 68.484649][ T4515] worker_thread+0xaa8/0x12a0 [ 68.489825][ T4515] kthread+0x436/0x520 [ 68.494392][ T4515] ret_from_fork+0x1f/0x30 [ 68.499323][ T4515] [ 68.499323][ T4515] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 68.509121][ T4515] __lock_acquire+0x2c33/0x7c60 [ 68.514474][ T4515] lock_acquire+0x197/0x3f0 [ 68.519482][ T4515] __flush_work+0xdd/0x1b0 [ 68.524406][ T4515] __cancel_work_timer+0x3ac/0x520 [ 68.530015][ T4515] hci_request_cancel_all+0xcc/0x300 [ 68.535921][ T4515] hci_dev_do_close+0x4e/0x1030 [ 68.541270][ T4515] hci_rfkill_set_block+0x10a/0x190 [ 68.546969][ T4515] rfkill_set_block+0x1c6/0x420 [ 68.552320][ T4515] rfkill_fop_write+0x458/0x560 [ 68.557671][ T4515] vfs_write+0x300/0xd00 [ 68.562412][ T4515] ksys_write+0x14d/0x250 [ 68.567251][ T4515] do_syscall_64+0x4c/0xa0 [ 68.572211][ T4515] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.578702][ T4515] [ 68.578702][ T4515] other info that might help us debug this: [ 68.578702][ T4515] [ 68.588999][ T4515] Chain exists of: [ 68.588999][ T4515] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.588999][ T4515] [ 68.604709][ T4515] Possible unsafe locking scenario: [ 68.604709][ T4515] [ 68.612544][ T4515] CPU0 CPU1 [ 68.617955][ T4515] ---- ---- [ 68.623319][ T4515] lock(rfkill_global_mutex); [ 68.628065][ T4515] lock(&data->open_mutex); [ 68.635151][ T4515] lock(rfkill_global_mutex); [ 68.642409][ T4515] lock((work_completion)(&hdev->bg_scan_update)); [ 68.649149][ T4515] [ 68.649149][ T4515] *** DEADLOCK *** [ 68.649149][ T4515] [ 68.657273][ T4515] 1 lock held by syz.0.17/4515: [ 68.662103][ T4515] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 68.672175][ T4515] [ 68.672175][ T4515] stack backtrace: [ 68.678052][ T4515] CPU: 0 PID: 4515 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 68.686007][ T4515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 68.696191][ T4515] Call Trace: [ 68.699466][ T4515] [ 68.702378][ T4515] dump_stack_lvl+0x168/0x230 [ 68.707058][ T4515] ? load_image+0x3b0/0x3b0 [ 68.711578][ T4515] ? show_regs_print_info+0x20/0x20 [ 68.716776][ T4515] ? print_circular_bug+0x12b/0x1a0 [ 68.721971][ T4515] check_noncircular+0x274/0x310 [ 68.726905][ T4515] ? add_chain_block+0x940/0x940 [ 68.731824][ T4515] ? lockdep_lock+0xdc/0x1e0 [ 68.736569][ T4515] ? __lock_acquire+0x12d9/0x7c60 [ 68.741672][ T4515] ? lockdep_lock+0x1e0/0x1e0 [ 68.746337][ T4515] ? mark_lock+0x94/0x320 [ 68.750742][ T4515] __lock_acquire+0x2c33/0x7c60 [ 68.755668][ T4515] ? verify_lock_unused+0x140/0x140 [ 68.760849][ T4515] ? verify_lock_unused+0x140/0x140 [ 68.766033][ T4515] lock_acquire+0x197/0x3f0 [ 68.770516][ T4515] ? __flush_work+0xc1/0x1b0 [ 68.775087][ T4515] ? __lock_acquire+0x7c60/0x7c60 [ 68.780094][ T4515] ? read_lock_is_recursive+0x10/0x10 [ 68.785448][ T4515] ? start_flush_work+0x776/0x820 [ 68.790451][ T4515] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.796335][ T4515] ? _raw_spin_unlock+0x40/0x40 [ 68.801166][ T4515] __flush_work+0xdd/0x1b0 [ 68.805646][ T4515] ? __flush_work+0xc1/0x1b0 [ 68.810224][ T4515] ? flush_work+0x20/0x20 [ 68.814531][ T4515] ? try_to_grab_pending+0xf3/0x7e0 [ 68.819718][ T4515] ? lockdep_hardirqs_off+0x70/0x100 [ 68.824982][ T4515] ? mark_lock+0x94/0x320 [ 68.829291][ T4515] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 68.835255][ T4515] ? lock_chain_count+0x20/0x20 [ 68.840084][ T4515] ? mark_lock+0x94/0x320 [ 68.844399][ T4515] ? __cancel_work_timer+0x331/0x520 [ 68.849662][ T4515] __cancel_work_timer+0x3ac/0x520 [ 68.854768][ T4515] ? cancel_work_sync+0x20/0x20 [ 68.859602][ T4515] ? __cancel_work+0x1f4/0x2d0 [ 68.864453][ T4515] ? lockdep_hardirqs_on+0x94/0x140 [ 68.869657][ T4515] ? __cancel_work+0x26f/0x2d0 [ 68.874410][ T4515] ? cancel_work+0x20/0x20 [ 68.878905][ T4515] ? lock_chain_count+0x20/0x20 [ 68.883740][ T4515] hci_request_cancel_all+0xcc/0x300 [ 68.889189][ T4515] hci_dev_do_close+0x4e/0x1030 [ 68.894019][ T4515] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.899897][ T4515] ? _raw_spin_unlock+0x40/0x40 [ 68.904756][ T4515] hci_rfkill_set_block+0x10a/0x190 [ 68.909963][ T4515] ? rcu_lock_release+0x20/0x20 [ 68.914822][ T4515] rfkill_set_block+0x1c6/0x420 [ 68.919667][ T4515] rfkill_fop_write+0x458/0x560 [ 68.924536][ T4515] ? verify_lock_unused+0x140/0x140 [ 68.929728][ T4515] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.934663][ T4515] ? common_file_perm+0x150/0x1c0 [ 68.939668][ T4515] ? fsnotify_perm+0x5d/0x560 [ 68.944441][ T4515] ? security_file_permission+0x75/0xa0 [ 68.949966][ T4515] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.954884][ T4515] vfs_write+0x300/0xd00 [ 68.959106][ T4515] ? file_end_write+0x250/0x250 [ 68.963956][ T4515] ? __context_tracking_exit+0x4c/0x80 [ 68.969395][ T4515] ? __lock_acquire+0x7c60/0x7c60 [ 68.974399][ T4515] ? __fdget_pos+0x1e2/0x370 [ 68.978968][ T4515] ksys_write+0x14d/0x250 [ 68.983277][ T4515] ? __ia32_sys_read+0x80/0x80 [ 68.988022][ T4515] ? lockdep_hardirqs_on+0x94/0x140 [ 68.993217][ T4515] do_syscall_64+0x4c/0xa0 [ 68.997638][ T4515] ? clear_bhb_loop+0x30/0x80 [ 69.002295][ T4515] ? clear_bhb_loop+0x30/0x80 [ 69.006952][ T4515] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.012835][ T4515] RIP: 0033:0x7fd07832fb69 [ 69.017232][ T4515] 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 [ 69.037605][ T4515] RSP: 002b:00007ffffaafafe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 69.046086][ T4515] RAX: ffffffffffffffda RBX: 00007fd078556fa0 RCX: 00007fd07832fb69 [ 69.054060][ T4515] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 69.062012][ T4515] RBP: 00007fd0783b2df1 R08: 0000000000000000 R09: 0000000000000000 [ 69.069962][ T4515] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.078008][ T4515] R13: 00007fd078556fa0 R14: 00007fd078556fa0 R15: 0000000000000003 [ 69.085960][ T4515]