Warning: Permanently added '10.128.0.97' (ED25519) to the list of known hosts. 2026/05/24 22:43:44 parsed 1 programs [ 68.504911][ T4199] cgroup: Unknown subsys name 'net' [ 68.629190][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.142113][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.376434][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.383036][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.878738][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.886957][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.899619][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.924011][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.931929][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.939485][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.538670][ T144] ODEBUG: Out of memory. ODEBUG disabled [ 73.561677][ T4257] chnl_net:caif_netlink_parms(): no params data found [ 73.656200][ T4257] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.669653][ T4257] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.678300][ T4257] device bridge_slave_0 entered promiscuous mode [ 73.690576][ T4257] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.699180][ T4257] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.707635][ T4257] device bridge_slave_1 entered promiscuous mode [ 73.743305][ T4257] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.755606][ T4257] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.800112][ T4257] team0: Port device team_slave_0 added [ 73.817040][ T4257] team0: Port device team_slave_1 added [ 73.843606][ T4257] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.851154][ T4257] 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. [ 73.877270][ T4257] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.892201][ T4257] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.899598][ T4257] 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. [ 73.925667][ T4257] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.956835][ T4257] device hsr_slave_0 entered promiscuous mode [ 73.964154][ T4257] device hsr_slave_1 entered promiscuous mode [ 74.056152][ T4257] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.066578][ T4257] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.076611][ T4257] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.085711][ T4257] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.107768][ T4257] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.115116][ T4257] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.122888][ T4257] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.129955][ T4257] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.174208][ T4257] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.187083][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.196786][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.204797][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.218212][ T4257] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.229447][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.237953][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.245070][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.258564][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.267788][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.274887][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.315129][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.324192][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.334723][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.345913][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.360645][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.390189][ T4257] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.517369][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.526013][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.538589][ T4257] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.571591][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.580419][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.598686][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.608547][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.618646][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.627457][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.637926][ T4257] device veth0_vlan entered promiscuous mode [ 74.674273][ T4257] device veth1_vlan entered promiscuous mode [ 74.693798][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.703034][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.711110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.720097][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.733675][ T4257] device veth0_macvtap entered promiscuous mode [ 74.744460][ T4257] device veth1_macvtap entered promiscuous mode [ 74.778140][ T4257] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.785832][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.794066][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.803282][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.812212][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.824009][ T4257] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.831323][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.840266][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.853606][ T4257] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.862550][ T4257] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.871271][ T4257] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.880251][ T4257] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/05/24 22:43:54 executed programs: 0 [ 75.995252][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 76.063311][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.070612][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.078924][ T4301] device bridge_slave_0 entered promiscuous mode [ 76.087597][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.094901][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.102982][ T4301] device bridge_slave_1 entered promiscuous mode [ 76.144593][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.158986][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.191524][ T4301] team0: Port device team_slave_0 added [ 76.202971][ T4301] team0: Port device team_slave_1 added [ 76.227103][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.236403][ T4301] 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. [ 76.264789][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.279622][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.288965][ T4301] 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. [ 76.317286][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.358979][ T4301] device hsr_slave_0 entered promiscuous mode [ 76.366066][ T4301] device hsr_slave_1 entered promiscuous mode [ 76.375097][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.383354][ T4301] Cannot create hsr debugfs directory [ 76.479643][ T4301] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.932247][ T4276] Bluetooth: hci0: command 0x0409 tx timeout [ 79.828071][ T4301] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.976496][ T4301] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.012411][ T4276] Bluetooth: hci0: command 0x041b tx timeout [ 80.026611][ T4301] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.135444][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.146203][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.155278][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.176027][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.236573][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.260189][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.268257][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.279142][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.289063][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.298162][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.307626][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.314762][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.323476][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.343466][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.352433][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.360856][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.367982][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.378130][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.397752][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.409945][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.420212][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.429542][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.450898][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.460375][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.474908][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.483477][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.492815][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.501170][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.521816][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.618370][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.626292][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.639845][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.659429][ T144] device hsr_slave_0 left promiscuous mode [ 80.666180][ T144] device hsr_slave_1 left promiscuous mode [ 80.674608][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.682333][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.690966][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.698831][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.707307][ T144] device bridge_slave_1 left promiscuous mode [ 80.714392][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.727707][ T144] device bridge_slave_0 left promiscuous mode [ 80.734124][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.754713][ T144] device veth1_macvtap left promiscuous mode [ 80.760941][ T144] device veth0_macvtap left promiscuous mode [ 80.767266][ T144] device veth1_vlan left promiscuous mode [ 80.773552][ T144] device veth0_vlan left promiscuous mode [ 80.924421][ T144] team0 (unregistering): Port device team_slave_1 removed [ 80.936461][ T144] team0 (unregistering): Port device team_slave_0 removed [ 80.952979][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.968292][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.021405][ T144] bond0 (unregistering): Released all slaves [ 81.093692][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.103048][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.122448][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.130771][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.139532][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.147951][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.159187][ T4301] device veth0_vlan entered promiscuous mode [ 81.172582][ T4301] device veth1_vlan entered promiscuous mode [ 81.203927][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.212971][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.221392][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.230207][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.241115][ T4301] device veth0_macvtap entered promiscuous mode [ 81.260185][ T4301] device veth1_macvtap entered promiscuous mode [ 81.268700][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.277939][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.295315][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.304848][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.314238][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.324888][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.332713][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.344702][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.355849][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.367822][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.378653][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.388132][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.441908][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.449887][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.462329][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.485879][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.494384][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.508689][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.633739][ T4314] [ 81.636152][ T4314] ====================================================== [ 81.643193][ T4314] WARNING: possible circular locking dependency detected [ 81.650253][ T4314] syzkaller #0 Not tainted [ 81.654695][ T4314] ------------------------------------------------------ [ 81.661741][ T4314] syz.0.17/4314 is trying to acquire lock: [ 81.667568][ T4314] ffff888029a5cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.678677][ T4314] [ 81.678677][ T4314] but task is already holding lock: [ 81.686072][ T4314] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.695777][ T4314] [ 81.695777][ T4314] which lock already depends on the new lock. [ 81.695777][ T4314] [ 81.706205][ T4314] [ 81.706205][ T4314] the existing dependency chain (in reverse order) is: [ 81.715250][ T4314] [ 81.715250][ T4314] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.723279][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 81.729043][ T4314] mutex_lock_nested+0x17/0x20 [ 81.734360][ T4314] rfkill_register+0x33/0x980 [ 81.739593][ T4314] hci_register_dev+0x452/0x970 [ 81.745105][ T4314] vhci_create_device+0x32c/0x5c0 [ 81.750698][ T4314] vhci_write+0x391/0x450 [ 81.755589][ T4314] vfs_write+0x745/0xd60 [ 81.760391][ T4314] ksys_write+0x152/0x260 [ 81.765378][ T4314] do_syscall_64+0x4c/0xa0 [ 81.770357][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.776809][ T4314] [ 81.776809][ T4314] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.784678][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 81.790435][ T4314] mutex_lock_nested+0x17/0x20 [ 81.795760][ T4314] vhci_send_frame+0x88/0x100 [ 81.800996][ T4314] hci_send_frame+0x1a9/0x2e0 [ 81.806229][ T4314] hci_tx_work+0x9f9/0x1710 [ 81.811294][ T4314] process_one_work+0x85f/0x1010 [ 81.816892][ T4314] worker_thread+0xaa6/0x1290 [ 81.822123][ T4314] kthread+0x436/0x520 [ 81.826741][ T4314] ret_from_fork+0x1f/0x30 [ 81.831715][ T4314] [ 81.831715][ T4314] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.840961][ T4314] __flush_work+0x116/0x210 [ 81.846025][ T4314] hci_dev_do_close+0x1e7/0x1030 [ 81.851525][ T4314] hci_unregister_dev+0x2d7/0x580 [ 81.857112][ T4314] vhci_release+0x73/0xc0 [ 81.861993][ T4314] __fput+0x234/0x930 [ 81.866610][ T4314] task_work_run+0x125/0x1a0 [ 81.871759][ T4314] do_exit+0x626/0x20c0 [ 81.876464][ T4314] do_group_exit+0x12e/0x300 [ 81.881598][ T4314] get_signal+0x6d6/0x12d0 [ 81.886568][ T4314] arch_do_signal_or_restart+0xe7/0x12c0 [ 81.892756][ T4314] exit_to_user_mode_loop+0x9e/0x130 [ 81.898615][ T4314] exit_to_user_mode_prepare+0xee/0x180 [ 81.904703][ T4314] syscall_exit_to_user_mode+0x16/0x40 [ 81.910717][ T4314] do_syscall_64+0x58/0xa0 [ 81.915694][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.922190][ T4314] [ 81.922190][ T4314] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.929878][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 81.935641][ T4314] mutex_lock_nested+0x17/0x20 [ 81.940968][ T4314] bg_scan_update+0x44/0x3b0 [ 81.946110][ T4314] process_one_work+0x85f/0x1010 [ 81.951588][ T4314] worker_thread+0xaa6/0x1290 [ 81.956818][ T4314] kthread+0x436/0x520 [ 81.961448][ T4314] ret_from_fork+0x1f/0x30 [ 81.966419][ T4314] [ 81.966419][ T4314] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.976274][ T4314] __lock_acquire+0x2c42/0x7d10 [ 81.981680][ T4314] lock_acquire+0x19e/0x400 [ 81.986869][ T4314] __flush_work+0x116/0x210 [ 81.991919][ T4314] __cancel_work_timer+0x3f4/0x560 [ 81.997577][ T4314] hci_request_cancel_all+0xcc/0x300 [ 82.003410][ T4314] hci_dev_do_close+0x4e/0x1030 [ 82.008816][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 82.014583][ T4314] rfkill_set_block+0x1c9/0x3d0 [ 82.020075][ T4314] rfkill_fop_write+0x452/0x560 [ 82.025468][ T4314] vfs_write+0x30b/0xd60 [ 82.030267][ T4314] ksys_write+0x152/0x260 [ 82.035144][ T4314] do_syscall_64+0x4c/0xa0 [ 82.040112][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.046554][ T4314] [ 82.046554][ T4314] other info that might help us debug this: [ 82.046554][ T4314] [ 82.056808][ T4314] Chain exists of: [ 82.056808][ T4314] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.056808][ T4314] [ 82.072584][ T4314] Possible unsafe locking scenario: [ 82.072584][ T4314] [ 82.080054][ T4314] CPU0 CPU1 [ 82.085433][ T4314] ---- ---- [ 82.090821][ T4314] lock(rfkill_global_mutex); [ 82.092879][ T4241] Bluetooth: hci0: command 0x040f tx timeout [ 82.095620][ T4314] lock(&data->open_mutex); [ 82.108738][ T4314] lock(rfkill_global_mutex); [ 82.116056][ T4314] lock((work_completion)(&hdev->bg_scan_update)); [ 82.122676][ T4314] [ 82.122676][ T4314] *** DEADLOCK *** [ 82.122676][ T4314] [ 82.131014][ T4314] 1 lock held by syz.0.17/4314: [ 82.135898][ T4314] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.146041][ T4314] [ 82.146041][ T4314] stack backtrace: [ 82.151975][ T4314] CPU: 0 PID: 4314 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.159212][ T4314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.169308][ T4314] Call Trace: [ 82.172617][ T4314] [ 82.175575][ T4314] dump_stack_lvl+0x188/0x250 [ 82.180303][ T4314] ? load_image+0x400/0x400 [ 82.184857][ T4314] ? show_regs_print_info+0x20/0x20 [ 82.190105][ T4314] ? print_circular_bug+0x12b/0x1a0 [ 82.195341][ T4314] check_noncircular+0x296/0x330 [ 82.200411][ T4314] ? look_up_lock_class+0x71/0x110 [ 82.205565][ T4314] ? add_chain_block+0x940/0x940 [ 82.210534][ T4314] ? lockdep_lock+0xf1/0x1f0 [ 82.215158][ T4314] ? __lock_acquire+0x12e8/0x7d10 [ 82.220218][ T4314] ? mark_lock+0x94/0x320 [ 82.224576][ T4314] __lock_acquire+0x2c42/0x7d10 [ 82.229477][ T4314] ? verify_lock_unused+0x140/0x140 [ 82.234709][ T4314] ? mark_lock+0x94/0x320 [ 82.239206][ T4314] lock_acquire+0x19e/0x400 [ 82.243762][ T4314] ? __flush_work+0xfa/0x210 [ 82.248391][ T4314] ? __lock_acquire+0x7d10/0x7d10 [ 82.253458][ T4314] ? read_lock_is_recursive+0x10/0x10 [ 82.258883][ T4314] ? start_flush_work+0x776/0x820 [ 82.263968][ T4314] __flush_work+0x116/0x210 [ 82.268597][ T4314] ? __flush_work+0xfa/0x210 [ 82.273223][ T4314] ? flush_work+0x20/0x20 [ 82.277585][ T4314] ? try_to_grab_pending+0xfa/0x7f0 [ 82.282806][ T4314] ? mark_lock+0x94/0x320 [ 82.287163][ T4314] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 82.293193][ T4314] ? lock_chain_count+0x20/0x20 [ 82.298091][ T4314] ? mark_lock+0x94/0x320 [ 82.302459][ T4314] ? __cancel_work_timer+0x36a/0x560 [ 82.307772][ T4314] __cancel_work_timer+0x3f4/0x560 [ 82.312921][ T4314] ? cancel_work_sync+0x20/0x20 [ 82.317809][ T4314] ? __cancel_work+0x1f9/0x2e0 [ 82.322602][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 82.327833][ T4314] ? __cancel_work+0x27b/0x2e0 [ 82.332637][ T4314] ? cancel_work+0x20/0x20 [ 82.337093][ T4314] ? lock_chain_count+0x20/0x20 [ 82.341984][ T4314] hci_request_cancel_all+0xcc/0x300 [ 82.347309][ T4314] hci_dev_do_close+0x4e/0x1030 [ 82.352203][ T4314] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.358123][ T4314] ? _raw_spin_unlock+0x40/0x40 [ 82.363023][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 82.368252][ T4314] ? rcu_lock_release+0x20/0x20 [ 82.373143][ T4314] rfkill_set_block+0x1c9/0x3d0 [ 82.378039][ T4314] rfkill_fop_write+0x452/0x560 [ 82.382924][ T4314] ? rfkill_fop_read+0x520/0x520 [ 82.387891][ T4314] ? common_file_perm+0xc0/0x1c0 [ 82.392855][ T4314] ? fsnotify_perm+0x5d/0x560 [ 82.397567][ T4314] ? security_file_permission+0x75/0xa0 [ 82.403148][ T4314] ? rfkill_fop_read+0x520/0x520 [ 82.408127][ T4314] vfs_write+0x30b/0xd60 [ 82.412405][ T4314] ? file_end_write+0x250/0x250 [ 82.417290][ T4314] ? __context_tracking_exit+0x4c/0x80 [ 82.422790][ T4314] ? __lock_acquire+0x7d10/0x7d10 [ 82.427842][ T4314] ? __fdget_pos+0x1e2/0x370 [ 82.432465][ T4314] ksys_write+0x152/0x260 [ 82.436827][ T4314] ? __ia32_sys_read+0x80/0x80 [ 82.441621][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 82.446856][ T4314] do_syscall_64+0x4c/0xa0 [ 82.451331][ T4314] ? clear_bhb_loop+0x30/0x80 [ 82.456037][ T4314] ? clear_bhb_loop+0x30/0x80 [ 82.460744][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.466682][ T4314] RIP: 0033:0x7fea6fd9fe59 [ 82.471131][ T4314] 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 [ 82.490780][ T4314] RSP: 002b:00007ffd578d9e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.499236][ T4314] RAX: ffffffffffffffda RBX: 00007fea70018fa0 RCX: 00007fea6fd9fe59 [ 82.507247][ T4314] RDX: 0000000000000008 RSI: 00002000000001c0 RDI: 0000000000000003 [ 82.515277][ T4314] RBP: 00007fea6fe35d6f R08: 0000000000000000 R09: 0000000000000000 [ 82.523278][ T4314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.531285][ T4314] R13: 00007fea70018fac R14: 00007fea70018fa0 R15: 00007fea70018fa0 [ 82.539299][ T4314]