Warning: Permanently added '10.128.0.155' (ED25519) to the list of known hosts. 2026/06/28 09:33:51 parsed 1 programs 2026/06/28 09:33:51 serving rpc on tcp://45579 [ 64.611794][ T4199] cgroup: Unknown subsys name 'net' [ 64.750553][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 66.291484][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 68.146241][ T4227] chnl_net:caif_netlink_parms(): no params data found [ 68.191328][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.198940][ T4227] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.207021][ T4227] device bridge_slave_0 entered promiscuous mode [ 68.216295][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.223364][ T4227] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.231400][ T4227] device bridge_slave_1 entered promiscuous mode [ 68.252356][ T4227] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.264131][ T4227] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.292186][ T4227] team0: Port device team_slave_0 added [ 68.300454][ T4227] team0: Port device team_slave_1 added [ 68.323982][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.331105][ T4227] 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. [ 68.358698][ T4227] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.371956][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.380553][ T4227] 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. [ 68.407926][ T4227] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.450607][ T4227] device hsr_slave_0 entered promiscuous mode [ 68.458254][ T4227] device hsr_slave_1 entered promiscuous mode [ 68.601649][ T4227] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.613843][ T4227] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.626278][ T4227] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.639016][ T4227] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.672941][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.680203][ T4227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.688170][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.695393][ T4227] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.759065][ T4227] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.778287][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.789159][ T161] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.798350][ T161] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.813025][ T4227] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.827261][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.836940][ T161] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.844022][ T161] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.869551][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.879357][ T161] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.886506][ T161] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.898313][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.916966][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.926756][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.936458][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.951849][ T4227] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.964151][ T4227] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.973572][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.107522][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.116773][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.130139][ T4227] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.153507][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.164117][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.185056][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.196727][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.206679][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.216218][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.225841][ T4227] device veth0_vlan entered promiscuous mode [ 69.240279][ T4227] device veth1_vlan entered promiscuous mode [ 69.264221][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.272595][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.282523][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.291801][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.305126][ T4227] device veth0_macvtap entered promiscuous mode [ 69.316404][ T4227] device veth1_macvtap entered promiscuous mode [ 69.334256][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.346263][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.353826][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.363455][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.372066][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.381818][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.390776][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.400499][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.412718][ T4227] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.422299][ T4227] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.431301][ T4227] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.440330][ T4227] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.590898][ T4227] syz-executor (4227) used greatest stack depth: 20784 bytes left [ 69.775792][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.348251][ T161] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.356416][ T161] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.369408][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.386944][ T161] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.394973][ T161] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.402461][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.318386][ T1431] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.325348][ T1431] ieee802154 phy1 wpan1: encryption failed: -22 2026/06/28 09:33:59 executed programs: 0 [ 71.532520][ T4288] chnl_net:caif_netlink_parms(): no params data found [ 71.573797][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.581154][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.589307][ T4288] device bridge_slave_0 entered promiscuous mode [ 71.598427][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.605787][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.613720][ T4288] device bridge_slave_1 entered promiscuous mode [ 71.635287][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.647094][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.668502][ T4288] team0: Port device team_slave_0 added [ 71.675942][ T4288] team0: Port device team_slave_1 added [ 71.692177][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.699305][ T4288] 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. [ 71.727145][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.742076][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.749160][ T4288] 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. [ 71.775196][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.802647][ T4288] device hsr_slave_0 entered promiscuous mode [ 71.809989][ T4288] device hsr_slave_1 entered promiscuous mode [ 71.818332][ T4288] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.826211][ T4288] Cannot create hsr debugfs directory [ 72.536112][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.475614][ T2031] Bluetooth: hci0: command 0x0409 tx timeout [ 74.839543][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.892879][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.554919][ T2031] Bluetooth: hci0: command 0x041b tx timeout [ 75.883363][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.893331][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.902252][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.911019][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.974168][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.000917][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.009189][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.019152][ T4288] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.029771][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.038519][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.048539][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.055672][ T4297] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.064109][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.076392][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.085824][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.094150][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.101259][ T4297] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.113025][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.134607][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.148449][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.157621][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.176098][ T9] device hsr_slave_0 left promiscuous mode [ 76.182910][ T9] device hsr_slave_1 left promiscuous mode [ 76.190136][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.197865][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.206945][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.214347][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.222407][ T9] device bridge_slave_1 left promiscuous mode [ 76.229327][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.241833][ T9] device bridge_slave_0 left promiscuous mode [ 76.249297][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.267989][ T9] device veth1_macvtap left promiscuous mode [ 76.274509][ T9] device veth0_macvtap left promiscuous mode [ 76.280822][ T9] device veth1_vlan left promiscuous mode [ 76.287634][ T9] device veth0_vlan left promiscuous mode [ 76.424248][ T9] team0 (unregistering): Port device team_slave_1 removed [ 76.440860][ T9] team0 (unregistering): Port device team_slave_0 removed [ 76.454157][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.468469][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.521404][ T9] bond0 (unregistering): Released all slaves [ 76.612163][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.620328][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.629174][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.639491][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.648424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.660752][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.669382][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.680245][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.794028][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.802766][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.816535][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.849355][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.858067][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.881451][ T4288] device veth0_vlan entered promiscuous mode [ 76.889398][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.897954][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.906645][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.914354][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.928206][ T4288] device veth1_vlan entered promiscuous mode [ 76.953479][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.965744][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.985659][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.005275][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.028552][ T4288] device veth0_macvtap entered promiscuous mode [ 77.041032][ T4288] device veth1_macvtap entered promiscuous mode [ 77.062009][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.070092][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.080986][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.094190][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.103176][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.125803][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.137795][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.147800][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.158809][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.168670][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.241139][ T4297] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.254076][ T4297] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.278336][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.288907][ T4297] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.296989][ T4297] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.304568][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.463912][ T4356] [ 77.466294][ T4356] ====================================================== [ 77.473318][ T4356] WARNING: possible circular locking dependency detected [ 77.480336][ T4356] syzkaller #0 Not tainted [ 77.484757][ T4356] ------------------------------------------------------ [ 77.491777][ T4356] syz.0.17/4356 is trying to acquire lock: [ 77.497583][ T4356] ffff88801fad1028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 77.508647][ T4356] [ 77.508647][ T4356] but task is already holding lock: [ 77.516013][ T4356] ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 77.525758][ T4356] [ 77.525758][ T4356] which lock already depends on the new lock. [ 77.525758][ T4356] [ 77.536168][ T4356] [ 77.536168][ T4356] the existing dependency chain (in reverse order) is: [ 77.545186][ T4356] [ 77.545186][ T4356] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 77.553196][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 77.558935][ T4356] mutex_lock_nested+0x17/0x20 [ 77.564234][ T4356] rfkill_register+0x2f/0x970 [ 77.569526][ T4356] hci_register_dev+0x459/0x980 [ 77.574914][ T4356] vhci_create_device+0x32e/0x5c0 [ 77.580476][ T4356] vhci_write+0x389/0x440 [ 77.585525][ T4356] vfs_write+0x748/0xd70 [ 77.590320][ T4356] ksys_write+0x153/0x260 [ 77.595515][ T4356] do_syscall_64+0x4c/0xa0 [ 77.600451][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.606962][ T4356] [ 77.606962][ T4356] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 77.614778][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 77.620513][ T4356] mutex_lock_nested+0x17/0x20 [ 77.625796][ T4356] vhci_send_frame+0x88/0x100 [ 77.630991][ T4356] hci_send_frame+0x1a9/0x2e0 [ 77.636193][ T4356] hci_tx_work+0x9b5/0x16d0 [ 77.641302][ T4356] process_one_work+0x867/0xff0 [ 77.646680][ T4356] worker_thread+0xad7/0x12a0 [ 77.651899][ T4356] kthread+0x42e/0x520 [ 77.656485][ T4356] ret_from_fork+0x1f/0x30 [ 77.661419][ T4356] [ 77.661419][ T4356] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 77.670619][ T4356] __flush_work+0x116/0x210 [ 77.675647][ T4356] hci_dev_do_close+0x201/0x1020 [ 77.681100][ T4356] hci_unregister_dev+0x2eb/0x590 [ 77.686642][ T4356] vhci_release+0x73/0xc0 [ 77.691934][ T4356] __fput+0x212/0x8c0 [ 77.696439][ T4356] task_work_run+0x125/0x1a0 [ 77.701548][ T4356] do_exit+0x635/0x2110 [ 77.706219][ T4356] do_group_exit+0x12c/0x2f0 [ 77.711321][ T4356] get_signal+0x7eb/0x12e0 [ 77.716252][ T4356] arch_do_signal_or_restart+0xe6/0x12a0 [ 77.722404][ T4356] exit_to_user_mode_loop+0x9e/0x130 [ 77.728202][ T4356] exit_to_user_mode_prepare+0xee/0x180 [ 77.734267][ T4356] syscall_exit_to_user_mode+0x16/0x40 [ 77.740240][ T4356] do_syscall_64+0x58/0xa0 [ 77.745169][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.751584][ T4356] [ 77.751584][ T4356] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 77.759218][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 77.764931][ T4356] mutex_lock_nested+0x17/0x20 [ 77.770209][ T4356] bg_scan_update+0x44/0x3b0 [ 77.775318][ T4356] process_one_work+0x867/0xff0 [ 77.780684][ T4356] worker_thread+0xad7/0x12a0 [ 77.785875][ T4356] kthread+0x42e/0x520 [ 77.790459][ T4356] ret_from_fork+0x1f/0x30 [ 77.795410][ T4356] [ 77.795410][ T4356] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 77.806086][ T4356] __lock_acquire+0x2c66/0x7b50 [ 77.811453][ T4356] lock_acquire+0x19e/0x400 [ 77.816470][ T4356] __flush_work+0x116/0x210 [ 77.821573][ T4356] __cancel_work_timer+0x3f4/0x560 [ 77.827198][ T4356] hci_request_cancel_all+0xcc/0x300 [ 77.833019][ T4356] hci_dev_do_close+0x4e/0x1020 [ 77.838398][ T4356] hci_rfkill_set_block+0x101/0x180 [ 77.844113][ T4356] rfkill_set_block+0x1c1/0x3c0 [ 77.849481][ T4356] rfkill_fop_write+0x453/0x560 [ 77.854864][ T4356] vfs_write+0x304/0xd70 [ 77.859623][ T4356] ksys_write+0x153/0x260 [ 77.864465][ T4356] do_syscall_64+0x4c/0xa0 [ 77.869419][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.875852][ T4356] [ 77.875852][ T4356] other info that might help us debug this: [ 77.875852][ T4356] [ 77.886081][ T4356] Chain exists of: [ 77.886081][ T4356] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 77.886081][ T4356] [ 77.901887][ T4356] Possible unsafe locking scenario: [ 77.901887][ T4356] [ 77.909344][ T4356] CPU0 CPU1 [ 77.914711][ T4356] ---- ---- [ 77.920153][ T4356] lock(rfkill_global_mutex); [ 77.924997][ T4356] lock(&data->open_mutex); [ 77.932109][ T4356] lock(rfkill_global_mutex); [ 77.939406][ T4356] lock((work_completion)(&hdev->bg_scan_update)); [ 77.946002][ T4356] [ 77.946002][ T4356] *** DEADLOCK *** [ 77.946002][ T4356] [ 77.954143][ T4356] 1 lock held by syz.0.17/4356: [ 77.958997][ T4356] #0: ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 77.969089][ T4356] [ 77.969089][ T4356] stack backtrace: [ 77.974991][ T4356] CPU: 0 PID: 4356 Comm: syz.0.17 Not tainted syzkaller #0 [ 77.982279][ T4356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 77.992846][ T4356] Call Trace: [ 77.996126][ T4356] [ 77.999064][ T4356] dump_stack_lvl+0x188/0x250 [ 78.003740][ T4356] ? load_image+0x410/0x410 [ 78.008239][ T4356] ? show_regs_print_info+0x20/0x20 [ 78.013582][ T4356] ? print_circular_bug+0x12b/0x1a0 [ 78.018826][ T4356] check_noncircular+0x296/0x330 [ 78.023791][ T4356] ? look_up_lock_class+0x71/0x110 [ 78.028907][ T4356] ? add_chain_block+0x9b0/0x9b0 [ 78.033842][ T4356] ? lockdep_lock+0xf1/0x1f0 [ 78.038431][ T4356] ? __lock_acquire+0x1305/0x7b50 [ 78.043458][ T4356] ? mark_lock+0x94/0x320 [ 78.047782][ T4356] ? _find_first_zero_bit+0xd1/0xf0 [ 78.052978][ T4356] __lock_acquire+0x2c66/0x7b50 [ 78.057835][ T4356] ? release_firmware_map_entry+0x190/0x190 [ 78.063757][ T4356] ? verify_lock_unused+0x140/0x140 [ 78.068972][ T4356] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 78.074956][ T4356] ? verify_lock_unused+0x140/0x140 [ 78.080160][ T4356] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 78.086320][ T4356] lock_acquire+0x19e/0x400 [ 78.090824][ T4356] ? __flush_work+0xfa/0x210 [ 78.095408][ T4356] ? __lock_acquire+0x7b50/0x7b50 [ 78.100430][ T4356] ? read_lock_is_recursive+0x10/0x10 [ 78.105800][ T4356] ? start_flush_work+0x784/0x830 [ 78.110821][ T4356] __flush_work+0x116/0x210 [ 78.115321][ T4356] ? __flush_work+0xfa/0x210 [ 78.119936][ T4356] ? flush_work+0x20/0x20 [ 78.124285][ T4356] ? try_to_grab_pending+0xfb/0x820 [ 78.129488][ T4356] ? mark_lock+0x94/0x320 [ 78.133828][ T4356] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 78.139816][ T4356] ? lock_chain_count+0x20/0x20 [ 78.144674][ T4356] ? mark_lock+0x94/0x320 [ 78.149055][ T4356] ? __cancel_work_timer+0x36a/0x560 [ 78.154341][ T4356] __cancel_work_timer+0x3f4/0x560 [ 78.159453][ T4356] ? cancel_work_sync+0x20/0x20 [ 78.164306][ T4356] ? __cancel_work+0x1f9/0x2e0 [ 78.169073][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 78.174267][ T4356] ? __cancel_work+0x27b/0x2e0 [ 78.179110][ T4356] ? cancel_work+0x20/0x20 [ 78.183541][ T4356] hci_request_cancel_all+0xcc/0x300 [ 78.188825][ T4356] hci_dev_do_close+0x4e/0x1020 [ 78.193674][ T4356] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 78.199651][ T4356] ? _raw_spin_unlock+0x40/0x40 [ 78.204690][ T4356] hci_rfkill_set_block+0x101/0x180 [ 78.209891][ T4356] ? rcu_lock_release+0x20/0x20 [ 78.214756][ T4356] rfkill_set_block+0x1c1/0x3c0 [ 78.219612][ T4356] rfkill_fop_write+0x453/0x560 [ 78.224772][ T4356] ? rfkill_fop_read+0x560/0x560 [ 78.229716][ T4356] ? common_file_perm+0x120/0x1c0 [ 78.234752][ T4356] ? fsnotify_perm+0x5d/0x560 [ 78.239453][ T4356] ? security_file_permission+0x75/0xa0 [ 78.245220][ T4356] ? rfkill_fop_read+0x560/0x560 [ 78.250243][ T4356] vfs_write+0x304/0xd70 [ 78.254501][ T4356] ? file_end_write+0x250/0x250 [ 78.259350][ T4356] ? __context_tracking_exit+0x4c/0x80 [ 78.264808][ T4356] ? __fdget_pos+0x1e2/0x370 [ 78.269393][ T4356] ksys_write+0x153/0x260 [ 78.273720][ T4356] ? __ia32_sys_read+0x80/0x80 [ 78.278482][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 78.283677][ T4356] do_syscall_64+0x4c/0xa0 [ 78.288086][ T4356] ? clear_bhb_loop+0x30/0x80 [ 78.292758][ T4356] ? clear_bhb_loop+0x30/0x80 [ 78.297427][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.303321][ T4356] RIP: 0033:0x7fbaf6777e59 [ 78.307802][ T4356] 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 [ 78.327808][ T4356] RSP: 002b:00007ffd8a535358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.336238][ T4356] RAX: ffffffffffffffda RBX: 00007fbaf69f0fa0 RCX: 00007fbaf6777e59 [ 78.344210][ T4356] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 78.352185][ T4356] RBP: 00007fbaf680de6f R08: 0000000000000000 R09: 0000000000000000 [ 78.360161][ T4356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.368416][ T4356] R13: 00007fbaf69f0fac R14: 00007fbaf69f0fa0 R15: 00007fbaf69f0fa0 [ 78.376403][ T4356] [ 78.381040][ T2031] Bluetooth: hci0: command 0x040f tx timeout