Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. 2026/07/11 15:02:39 parsed 1 programs 2026/07/11 15:02:39 serving rpc on tcp://43879 [ 62.365354][ T4198] cgroup: Unknown subsys name 'net' [ 62.516602][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 63.729522][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 64.986113][ T4208] chnl_net:caif_netlink_parms(): no params data found [ 65.022468][ T4208] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.029927][ T4208] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.037978][ T4208] device bridge_slave_0 entered promiscuous mode [ 65.046956][ T4208] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.054128][ T4208] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.061875][ T4208] device bridge_slave_1 entered promiscuous mode [ 65.079232][ T4208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.090008][ T4208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.109880][ T4208] team0: Port device team_slave_0 added [ 65.117398][ T4208] team0: Port device team_slave_1 added [ 65.131413][ T4208] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.138392][ T4208] 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. [ 65.164290][ T4208] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.176481][ T4208] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.183482][ T4208] 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. [ 65.209372][ T4208] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.235418][ T4208] device hsr_slave_0 entered promiscuous mode [ 65.242790][ T4208] device hsr_slave_1 entered promiscuous mode [ 65.317534][ T4208] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.327882][ T4208] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.337231][ T4208] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.346047][ T4208] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.366345][ T4208] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.373554][ T4208] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.381333][ T4208] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.388457][ T4208] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.425441][ T4208] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.439790][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.449721][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.458827][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.467342][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.478980][ T4208] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.489733][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.498527][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.505668][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.522151][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.531325][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.538453][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.550010][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.558481][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.575114][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.583740][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.593808][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.604800][ T4208] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.674924][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.682716][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.694998][ T4208] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.710460][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.728290][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.738287][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.746328][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.755962][ T4208] device veth0_vlan entered promiscuous mode [ 65.766678][ T4208] device veth1_vlan entered promiscuous mode [ 65.785014][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.793277][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.801301][ T3091] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.812756][ T4208] device veth0_macvtap entered promiscuous mode [ 65.821097][ T4208] device veth1_macvtap entered promiscuous mode [ 65.837201][ T4208] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.845431][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.854991][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.866323][ T4208] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.874091][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.885644][ T4208] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.895048][ T4208] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.903788][ T4208] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.912744][ T4208] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.029228][ T4208] syz-executor (4208) used greatest stack depth: 19648 bytes left [ 66.064984][ T3091] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.787245][ T3091] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.095863][ T3091] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.147851][ T3091] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.264343][ T1432] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.270873][ T1432] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.850020][ T3091] device hsr_slave_0 left promiscuous mode [ 71.883303][ T3091] device hsr_slave_1 left promiscuous mode [ 71.896001][ T3091] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.904722][ T3091] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.914215][ T3091] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.923400][ T3091] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.931215][ T3091] device bridge_slave_1 left promiscuous mode [ 71.938784][ T3091] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.950906][ T3091] device bridge_slave_0 left promiscuous mode [ 71.958018][ T3091] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.974014][ T3091] device veth1_macvtap left promiscuous mode [ 71.980154][ T3091] device veth0_macvtap left promiscuous mode [ 71.987331][ T3091] device veth1_vlan left promiscuous mode [ 71.993297][ T3091] device veth0_vlan left promiscuous mode [ 72.109784][ T3091] team0 (unregistering): Port device team_slave_1 removed [ 72.125008][ T3091] team0 (unregistering): Port device team_slave_0 removed [ 72.138076][ T3091] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.151842][ T3091] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.197212][ T3091] bond0 (unregistering): Released all slaves [ 72.550657][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.564561][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.586222][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.608980][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.617867][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.627855][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/11 15:02:51 executed programs: 0 [ 73.505925][ T4354] chnl_net:caif_netlink_parms(): no params data found [ 73.608320][ T4354] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.616536][ T4354] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.625129][ T4354] device bridge_slave_0 entered promiscuous mode [ 73.634832][ T4354] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.642695][ T4354] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.651954][ T4354] device bridge_slave_1 entered promiscuous mode [ 73.679057][ T4354] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.692180][ T4354] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.720501][ T4354] team0: Port device team_slave_0 added [ 73.730451][ T4354] team0: Port device team_slave_1 added [ 73.761690][ T4354] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.768658][ T4354] 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. [ 73.795319][ T4354] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.808534][ T4354] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.815918][ T4354] 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. [ 73.842352][ T4354] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.874674][ T4354] device hsr_slave_0 entered promiscuous mode [ 73.882196][ T4354] device hsr_slave_1 entered promiscuous mode [ 74.238419][ T3091] ODEBUG: Out of memory. ODEBUG disabled [ 74.607120][ T4354] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.630154][ T4354] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.648913][ T4354] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.658289][ T4354] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.715367][ T4354] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.729348][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.738055][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.749226][ T4354] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.760665][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.770196][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.780054][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.787181][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.806705][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.815431][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.824912][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.834378][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.841792][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.850358][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.859757][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.878423][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.888567][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.897667][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.908118][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.917664][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.926304][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.938219][ T4354] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.950731][ T4354] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.959470][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.969077][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.977860][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.083894][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.091338][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.105866][ T4354] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.126501][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.136176][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.157761][ T4354] device veth0_vlan entered promiscuous mode [ 75.165173][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.175024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.184444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.196355][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.209527][ T4354] device veth1_vlan entered promiscuous mode [ 75.265148][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.275565][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.284026][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.296173][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.306854][ T4354] device veth0_macvtap entered promiscuous mode [ 75.342232][ T4423] Bluetooth: hci0: command 0x0409 tx timeout [ 75.351747][ T4354] device veth1_macvtap entered promiscuous mode [ 75.369681][ T4354] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.378174][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.389236][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.398479][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.407187][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.419841][ T4354] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.429296][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.439608][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.450324][ T4354] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.460501][ T4354] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.469768][ T4354] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.479028][ T4354] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.571149][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.580984][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.590479][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.648123][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.656566][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.665246][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.796822][ T4485] [ 75.799280][ T4485] ====================================================== [ 75.806299][ T4485] WARNING: possible circular locking dependency detected [ 75.813331][ T4485] syzkaller #0 Not tainted [ 75.817742][ T4485] ------------------------------------------------------ [ 75.824753][ T4485] syz.0.17/4485 is trying to acquire lock: [ 75.830557][ T4485] ffff888079909028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 75.841627][ T4485] [ 75.841627][ T4485] but task is already holding lock: [ 75.848988][ T4485] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 75.858652][ T4485] [ 75.858652][ T4485] which lock already depends on the new lock. [ 75.858652][ T4485] [ 75.869054][ T4485] [ 75.869054][ T4485] the existing dependency chain (in reverse order) is: [ 75.878067][ T4485] [ 75.878067][ T4485] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.886060][ T4485] __mutex_lock_common+0x1e5/0x2400 [ 75.891794][ T4485] mutex_lock_nested+0x17/0x20 [ 75.897090][ T4485] rfkill_register+0x2f/0x970 [ 75.902301][ T4485] hci_register_dev+0x459/0x980 [ 75.907681][ T4485] vhci_create_device+0x32e/0x5c0 [ 75.913234][ T4485] vhci_write+0x389/0x440 [ 75.918088][ T4485] vfs_write+0x748/0xd70 [ 75.922941][ T4485] ksys_write+0x153/0x260 [ 75.927797][ T4485] do_syscall_64+0x4c/0xa0 [ 75.932740][ T4485] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.939335][ T4485] [ 75.939335][ T4485] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.947149][ T4485] __mutex_lock_common+0x1e5/0x2400 [ 75.952874][ T4485] mutex_lock_nested+0x17/0x20 [ 75.958162][ T4485] vhci_send_frame+0x88/0x100 [ 75.963365][ T4485] hci_send_frame+0x1a9/0x2e0 [ 75.968582][ T4485] hci_tx_work+0x9b5/0x16d0 [ 75.973610][ T4485] process_one_work+0x867/0xff0 [ 75.978999][ T4485] worker_thread+0xad7/0x12a0 [ 75.984202][ T4485] kthread+0x42e/0x520 [ 75.988794][ T4485] ret_from_fork+0x1f/0x30 [ 75.993736][ T4485] [ 75.993736][ T4485] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 76.002953][ T4485] __flush_work+0x116/0x210 [ 76.007981][ T4485] hci_dev_do_close+0x201/0x1020 [ 76.013443][ T4485] hci_unregister_dev+0x2eb/0x590 [ 76.018991][ T4485] vhci_release+0x73/0xc0 [ 76.023843][ T4485] __fput+0x212/0x8c0 [ 76.028353][ T4485] task_work_run+0x125/0x1a0 [ 76.033470][ T4485] do_exit+0x635/0x2110 [ 76.038144][ T4485] do_group_exit+0x12c/0x2f0 [ 76.043257][ T4485] get_signal+0x7eb/0x12e0 [ 76.048192][ T4485] arch_do_signal_or_restart+0xe6/0x12a0 [ 76.054346][ T4485] exit_to_user_mode_loop+0x9e/0x130 [ 76.060276][ T4485] exit_to_user_mode_prepare+0xee/0x180 [ 76.066346][ T4485] syscall_exit_to_user_mode+0x16/0x40 [ 76.072330][ T4485] do_syscall_64+0x58/0xa0 [ 76.077277][ T4485] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.083693][ T4485] [ 76.083693][ T4485] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 76.091340][ T4485] __mutex_lock_common+0x1e5/0x2400 [ 76.097066][ T4485] mutex_lock_nested+0x17/0x20 [ 76.102354][ T4485] bg_scan_update+0x44/0x3b0 [ 76.107464][ T4485] process_one_work+0x867/0xff0 [ 76.112839][ T4485] worker_thread+0xad7/0x12a0 [ 76.118042][ T4485] kthread+0x42e/0x520 [ 76.122634][ T4485] ret_from_fork+0x1f/0x30 [ 76.127573][ T4485] [ 76.127573][ T4485] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 76.137387][ T4485] __lock_acquire+0x2c66/0x7b50 [ 76.142769][ T4485] lock_acquire+0x19e/0x400 [ 76.147801][ T4485] __flush_work+0x116/0x210 [ 76.152827][ T4485] __cancel_work_timer+0x3f4/0x560 [ 76.158463][ T4485] hci_request_cancel_all+0xcc/0x300 [ 76.164469][ T4485] hci_dev_do_close+0x4e/0x1020 [ 76.169846][ T4485] hci_rfkill_set_block+0x101/0x180 [ 76.175576][ T4485] rfkill_set_block+0x1c1/0x3c0 [ 76.180954][ T4485] rfkill_fop_write+0x453/0x560 [ 76.186333][ T4485] vfs_write+0x304/0xd70 [ 76.191322][ T4485] ksys_write+0x153/0x260 [ 76.196177][ T4485] do_syscall_64+0x4c/0xa0 [ 76.201128][ T4485] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.207549][ T4485] [ 76.207549][ T4485] other info that might help us debug this: [ 76.207549][ T4485] [ 76.217773][ T4485] Chain exists of: [ 76.217773][ T4485] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 76.217773][ T4485] [ 76.233503][ T4485] Possible unsafe locking scenario: [ 76.233503][ T4485] [ 76.240961][ T4485] CPU0 CPU1 [ 76.246324][ T4485] ---- ---- [ 76.251683][ T4485] lock(rfkill_global_mutex); [ 76.256447][ T4485] lock(&data->open_mutex); [ 76.263558][ T4485] lock(rfkill_global_mutex); [ 76.270845][ T4485] lock((work_completion)(&hdev->bg_scan_update)); [ 76.277433][ T4485] [ 76.277433][ T4485] *** DEADLOCK *** [ 76.277433][ T4485] [ 76.285573][ T4485] 1 lock held by syz.0.17/4485: [ 76.290420][ T4485] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.300609][ T4485] [ 76.300609][ T4485] stack backtrace: [ 76.306498][ T4485] CPU: 1 PID: 4485 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.313698][ T4485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 76.323770][ T4485] Call Trace: [ 76.327047][ T4485] [ 76.329978][ T4485] dump_stack_lvl+0x188/0x250 [ 76.334666][ T4485] ? load_image+0x410/0x410 [ 76.339178][ T4485] ? show_regs_print_info+0x20/0x20 [ 76.344390][ T4485] ? print_circular_bug+0x12b/0x1a0 [ 76.349594][ T4485] check_noncircular+0x296/0x330 [ 76.354534][ T4485] ? look_up_lock_class+0x71/0x110 [ 76.359653][ T4485] ? add_chain_block+0x9b0/0x9b0 [ 76.364602][ T4485] ? lockdep_lock+0xf1/0x1f0 [ 76.369209][ T4485] ? __lock_acquire+0x1305/0x7b50 [ 76.374242][ T4485] ? mark_lock+0x94/0x320 [ 76.378578][ T4485] ? _find_first_zero_bit+0xd1/0xf0 [ 76.383786][ T4485] __lock_acquire+0x2c66/0x7b50 [ 76.388652][ T4485] ? verify_lock_unused+0x140/0x140 [ 76.393865][ T4485] ? verify_lock_unused+0x140/0x140 [ 76.399082][ T4485] lock_acquire+0x19e/0x400 [ 76.403594][ T4485] ? __flush_work+0xfa/0x210 [ 76.408193][ T4485] ? __lock_acquire+0x7b50/0x7b50 [ 76.413232][ T4485] ? read_lock_is_recursive+0x10/0x10 [ 76.418704][ T4485] ? start_flush_work+0x784/0x830 [ 76.423742][ T4485] ? __lock_acquire+0x13dc/0x7b50 [ 76.428777][ T4485] __flush_work+0x116/0x210 [ 76.433288][ T4485] ? __flush_work+0xfa/0x210 [ 76.437975][ T4485] ? flush_work+0x20/0x20 [ 76.442739][ T4485] ? try_to_grab_pending+0xfb/0x820 [ 76.447949][ T4485] ? mark_lock+0x94/0x320 [ 76.452282][ T4485] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 76.458278][ T4485] ? lock_chain_count+0x20/0x20 [ 76.463143][ T4485] ? mark_lock+0x94/0x320 [ 76.467478][ T4485] ? __cancel_work_timer+0x36a/0x560 [ 76.472777][ T4485] __cancel_work_timer+0x3f4/0x560 [ 76.477898][ T4485] ? cancel_work_sync+0x20/0x20 [ 76.482759][ T4485] ? __cancel_work+0x1f9/0x2e0 [ 76.487530][ T4485] ? lockdep_hardirqs_on+0x94/0x140 [ 76.492735][ T4485] ? __cancel_work+0x27b/0x2e0 [ 76.497532][ T4485] ? cancel_work+0x20/0x20 [ 76.501951][ T4485] hci_request_cancel_all+0xcc/0x300 [ 76.507249][ T4485] hci_dev_do_close+0x4e/0x1020 [ 76.512110][ T4485] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 76.518012][ T4485] ? _raw_spin_unlock+0x40/0x40 [ 76.522872][ T4485] hci_rfkill_set_block+0x101/0x180 [ 76.528076][ T4485] ? rcu_lock_release+0x20/0x20 [ 76.532940][ T4485] rfkill_set_block+0x1c1/0x3c0 [ 76.537797][ T4485] rfkill_fop_write+0x453/0x560 [ 76.542656][ T4485] ? rfkill_fop_read+0x560/0x560 [ 76.547622][ T4485] ? common_file_perm+0xf0/0x1c0 [ 76.552564][ T4485] ? fsnotify_perm+0x5d/0x560 [ 76.557260][ T4485] ? security_file_permission+0x75/0xa0 [ 76.562809][ T4485] ? rfkill_fop_read+0x560/0x560 [ 76.567754][ T4485] vfs_write+0x304/0xd70 [ 76.572007][ T4485] ? file_end_write+0x250/0x250 [ 76.576862][ T4485] ? __context_tracking_exit+0x4c/0x80 [ 76.582365][ T4485] ? __fdget_pos+0x1e2/0x370 [ 76.587230][ T4485] ksys_write+0x153/0x260 [ 76.591571][ T4485] ? __ia32_sys_read+0x80/0x80 [ 76.596344][ T4485] ? lockdep_hardirqs_on+0x94/0x140 [ 76.601545][ T4485] do_syscall_64+0x4c/0xa0 [ 76.605967][ T4485] ? clear_bhb_loop+0x30/0x80 [ 76.610647][ T4485] ? clear_bhb_loop+0x30/0x80 [ 76.615331][ T4485] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.621241][ T4485] RIP: 0033:0x7fad230b3e59 [ 76.625663][ T4485] 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 [ 76.645271][ T4485] RSP: 002b:00007fff48174558 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.653840][ T4485] RAX: ffffffffffffffda RBX: 00007fad2333bfa0 RCX: 00007fad230b3e59 [ 76.661829][ T4485] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 76.669806][ T4485] RBP: 00007fad23149e6f R08: 0000000000000000 R09: 0000000000000000 [ 76.677776][ T4485] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.685755][ T4485] R13: 00007fad2333bfac R14: 00007fad2333bfa0 R15: 00007fad2333bfa0 [ 76.693748][ T4485]