Warning: Permanently added '10.128.0.117' (ED25519) to the list of known hosts. 2026/03/03 12:47:30 parsed 1 programs [ 70.197344][ T4189] cgroup: Unknown subsys name 'net' [ 70.303779][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.437607][ T1424] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.444353][ T1424] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.875324][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.665773][ T4217] chnl_net:caif_netlink_parms(): no params data found [ 73.717294][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.724930][ T4217] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.732832][ T4217] device bridge_slave_0 entered promiscuous mode [ 73.742109][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.749557][ T4217] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.757808][ T4217] device bridge_slave_1 entered promiscuous mode [ 73.781469][ T4217] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.792749][ T4217] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.819568][ T4217] team0: Port device team_slave_0 added [ 73.827623][ T4217] team0: Port device team_slave_1 added [ 73.846460][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.853437][ T4217] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.879704][ T4217] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.893250][ T4217] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.900430][ T4217] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.926642][ T4217] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.960413][ T4217] device hsr_slave_0 entered promiscuous mode [ 73.967548][ T4217] device hsr_slave_1 entered promiscuous mode [ 74.103874][ T4217] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.116273][ T4217] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.126984][ T4217] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.137251][ T4217] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.170476][ T4217] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.177777][ T4217] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.186074][ T4217] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.193208][ T4217] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.257631][ T4217] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.273967][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.285405][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.294626][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.318710][ T4217] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.331141][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.340496][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.347715][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.374569][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.384381][ T1274] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.391490][ T1274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.414022][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.423342][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.432799][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.447397][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.461843][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.474897][ T4217] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.604948][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.612539][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.630114][ T4217] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.653154][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.665384][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.687535][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.697231][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.708841][ T4217] device veth0_vlan entered promiscuous mode [ 74.718285][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.726864][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.740579][ T4217] device veth1_vlan entered promiscuous mode [ 74.766882][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.775802][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.784794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.793440][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.806740][ T4217] device veth0_macvtap entered promiscuous mode [ 74.819452][ T4217] device veth1_macvtap entered promiscuous mode [ 74.837388][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.848162][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.858040][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.866758][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.878600][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.890003][ T4217] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.899145][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.914515][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.925104][ T4217] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.935628][ T4217] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.945199][ T4217] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.963050][ T4217] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.732787][ T240] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.609202][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.622413][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.641024][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.659777][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.668658][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.682933][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/03/03 12:47:40 executed programs: 0 [ 77.460215][ T4280] chnl_net:caif_netlink_parms(): no params data found [ 77.505988][ T4280] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.513154][ T4280] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.521243][ T4280] device bridge_slave_0 entered promiscuous mode [ 77.530022][ T4280] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.537394][ T4280] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.546872][ T4280] device bridge_slave_1 entered promiscuous mode [ 77.569226][ T4280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.580945][ T4280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.606218][ T4280] team0: Port device team_slave_0 added [ 77.615219][ T4280] team0: Port device team_slave_1 added [ 77.633484][ T4280] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.641423][ T4280] 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. [ 77.668700][ T4280] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.681426][ T4280] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.689473][ T4280] 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. [ 77.715781][ T4280] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.751108][ T4280] device hsr_slave_0 entered promiscuous mode [ 77.759076][ T4280] device hsr_slave_1 entered promiscuous mode [ 77.767498][ T4280] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.775734][ T4280] Cannot create hsr debugfs directory [ 78.211360][ T240] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.444576][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 80.169913][ T240] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.221913][ T240] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.040945][ T4280] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.052306][ T4280] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.073773][ T4280] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.084844][ T4280] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.157439][ T4280] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.187729][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.196733][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.221991][ T4280] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.232845][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.242137][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.252562][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.259839][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.269177][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.290610][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.299549][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.308819][ T1274] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.316207][ T1274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.328814][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.341457][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.360453][ T240] device hsr_slave_0 left promiscuous mode [ 81.368937][ T240] device hsr_slave_1 left promiscuous mode [ 81.375839][ T240] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.383313][ T240] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.392350][ T240] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.399961][ T240] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.407878][ T240] device bridge_slave_1 left promiscuous mode [ 81.415197][ T240] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.430914][ T240] device bridge_slave_0 left promiscuous mode [ 81.439447][ T240] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.459035][ T240] device veth1_macvtap left promiscuous mode [ 81.465728][ T240] device veth0_macvtap left promiscuous mode [ 81.472192][ T240] device veth1_vlan left promiscuous mode [ 81.478774][ T240] device veth0_vlan left promiscuous mode [ 81.513730][ T1108] Bluetooth: hci0: command 0x041b tx timeout [ 81.660779][ T240] team0 (unregistering): Port device team_slave_1 removed [ 81.676322][ T240] team0 (unregistering): Port device team_slave_0 removed [ 81.691705][ T240] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.707687][ T240] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.767805][ T240] bond0 (unregistering): Released all slaves [ 81.815032][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.825935][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.836156][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.845633][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.855058][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.868531][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.877504][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.886123][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.895028][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.925417][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.037812][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.047021][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.060105][ T4280] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.087379][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.097347][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.116603][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.125193][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.134505][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.142490][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.154625][ T4280] device veth0_vlan entered promiscuous mode [ 82.169370][ T4280] device veth1_vlan entered promiscuous mode [ 82.189747][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.198137][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.206751][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.215969][ T1274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.227162][ T4280] device veth0_macvtap entered promiscuous mode [ 82.244755][ T4280] device veth1_macvtap entered promiscuous mode [ 82.265984][ T4280] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.273403][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.282233][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.292796][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.307315][ T4280] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.316051][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.325828][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.339219][ T4280] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.348721][ T4280] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.357759][ T4280] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.366893][ T4280] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.431507][ T1260] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.444715][ T1260] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.456587][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.487693][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.497659][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.506381][ T1260] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.696985][ T4321] [ 82.699387][ T4321] ====================================================== [ 82.706533][ T4321] WARNING: possible circular locking dependency detected [ 82.713624][ T4321] syzkaller #0 Not tainted [ 82.718069][ T4321] ------------------------------------------------------ [ 82.725173][ T4321] syz.0.17/4321 is trying to acquire lock: [ 82.731014][ T4321] ffff888073574c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.742180][ T4321] [ 82.742180][ T4321] but task is already holding lock: [ 82.749582][ T4321] ffffffff8d6c4b48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.759290][ T4321] [ 82.759290][ T4321] which lock already depends on the new lock. [ 82.759290][ T4321] [ 82.769726][ T4321] [ 82.769726][ T4321] the existing dependency chain (in reverse order) is: [ 82.778768][ T4321] [ 82.778768][ T4321] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.786841][ T4321] __mutex_lock_common+0x1e3/0x2400 [ 82.792605][ T4321] mutex_lock_nested+0x17/0x20 [ 82.797930][ T4321] rfkill_register+0x33/0x8a0 [ 82.803172][ T4321] hci_register_dev+0x452/0x970 [ 82.808574][ T4321] vhci_create_device+0x32c/0x5c0 [ 82.814164][ T4321] vhci_write+0x391/0x450 [ 82.819064][ T4321] vfs_write+0x745/0xd60 [ 82.823944][ T4321] ksys_write+0x152/0x260 [ 82.829018][ T4321] do_syscall_64+0x4c/0xa0 [ 82.834001][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.840450][ T4321] [ 82.840450][ T4321] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.848315][ T4321] __mutex_lock_common+0x1e3/0x2400 [ 82.854422][ T4321] mutex_lock_nested+0x17/0x20 [ 82.859747][ T4321] vhci_send_frame+0x88/0x100 [ 82.865009][ T4321] hci_send_frame+0x1a9/0x2e0 [ 82.870247][ T4321] hci_tx_work+0x9f9/0x1710 [ 82.875401][ T4321] process_one_work+0x85f/0x1010 [ 82.881143][ T4321] worker_thread+0xaa6/0x1290 [ 82.886502][ T4321] kthread+0x436/0x520 [ 82.891131][ T4321] ret_from_fork+0x1f/0x30 [ 82.896119][ T4321] [ 82.896119][ T4321] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.905374][ T4321] __flush_work+0x116/0x210 [ 82.910540][ T4321] hci_dev_do_close+0x1e7/0x1030 [ 82.916032][ T4321] hci_unregister_dev+0x2d7/0x580 [ 82.921635][ T4321] vhci_release+0x73/0xc0 [ 82.926539][ T4321] __fput+0x234/0x930 [ 82.931081][ T4321] task_work_run+0x125/0x1a0 [ 82.936217][ T4321] do_exit+0x626/0x20c0 [ 82.941089][ T4321] do_group_exit+0x12e/0x300 [ 82.946248][ T4321] get_signal+0x6ca/0x12c0 [ 82.951215][ T4321] arch_do_signal_or_restart+0xe7/0x12c0 [ 82.957405][ T4321] exit_to_user_mode_loop+0x9e/0x130 [ 82.963318][ T4321] exit_to_user_mode_prepare+0xee/0x180 [ 82.969430][ T4321] syscall_exit_to_user_mode+0x16/0x40 [ 82.975663][ T4321] do_syscall_64+0x58/0xa0 [ 82.980626][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.987079][ T4321] [ 82.987079][ T4321] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.994764][ T4321] __mutex_lock_common+0x1e3/0x2400 [ 83.000526][ T4321] mutex_lock_nested+0x17/0x20 [ 83.006091][ T4321] bg_scan_update+0x44/0x3b0 [ 83.011348][ T4321] process_one_work+0x85f/0x1010 [ 83.017094][ T4321] worker_thread+0xaa6/0x1290 [ 83.022347][ T4321] kthread+0x436/0x520 [ 83.026966][ T4321] ret_from_fork+0x1f/0x30 [ 83.032303][ T4321] [ 83.032303][ T4321] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.042180][ T4321] __lock_acquire+0x2c42/0x7d10 [ 83.047608][ T4321] lock_acquire+0x19e/0x400 [ 83.052863][ T4321] __flush_work+0x116/0x210 [ 83.057919][ T4321] __cancel_work_timer+0x3f4/0x560 [ 83.063574][ T4321] hci_request_cancel_all+0xcc/0x300 [ 83.069514][ T4321] hci_dev_do_close+0x4e/0x1030 [ 83.074927][ T4321] hci_rfkill_set_block+0x10a/0x190 [ 83.080684][ T4321] rfkill_set_block+0x1c6/0x420 [ 83.086103][ T4321] rfkill_fop_write+0x452/0x560 [ 83.091507][ T4321] vfs_write+0x30b/0xd60 [ 83.096300][ T4321] ksys_write+0x152/0x260 [ 83.101184][ T4321] do_syscall_64+0x4c/0xa0 [ 83.106292][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.112733][ T4321] [ 83.112733][ T4321] other info that might help us debug this: [ 83.112733][ T4321] [ 83.123076][ T4321] Chain exists of: [ 83.123076][ T4321] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.123076][ T4321] [ 83.138987][ T4321] Possible unsafe locking scenario: [ 83.138987][ T4321] [ 83.146632][ T4321] CPU0 CPU1 [ 83.152196][ T4321] ---- ---- [ 83.157579][ T4321] lock(rfkill_global_mutex); [ 83.162375][ T4321] lock(&data->open_mutex); [ 83.169516][ T4321] lock(rfkill_global_mutex); [ 83.176830][ T4321] lock((work_completion)(&hdev->bg_scan_update)); [ 83.183479][ T4321] [ 83.183479][ T4321] *** DEADLOCK *** [ 83.183479][ T4321] [ 83.191643][ T4321] 1 lock held by syz.0.17/4321: [ 83.196523][ T4321] #0: ffffffff8d6c4b48 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.206669][ T4321] [ 83.206669][ T4321] stack backtrace: [ 83.212595][ T4321] CPU: 1 PID: 4321 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.219899][ T4321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 83.230000][ T4321] Call Trace: [ 83.233488][ T4321] [ 83.236439][ T4321] dump_stack_lvl+0x188/0x250 [ 83.241150][ T4321] ? load_image+0x400/0x400 [ 83.245685][ T4321] ? show_regs_print_info+0x20/0x20 [ 83.250924][ T4321] ? print_circular_bug+0x12b/0x1a0 [ 83.256151][ T4321] check_noncircular+0x296/0x330 [ 83.261215][ T4321] ? look_up_lock_class+0x71/0x110 [ 83.266358][ T4321] ? add_chain_block+0x940/0x940 [ 83.271406][ T4321] ? lockdep_lock+0xf1/0x1f0 [ 83.276132][ T4321] ? __lock_acquire+0x12e8/0x7d10 [ 83.281196][ T4321] ? mark_lock+0x94/0x320 [ 83.285659][ T4321] __lock_acquire+0x2c42/0x7d10 [ 83.290560][ T4321] ? verify_lock_unused+0x140/0x140 [ 83.295800][ T4321] ? verify_lock_unused+0x140/0x140 [ 83.301124][ T4321] ? mark_lock+0x94/0x320 [ 83.305496][ T4321] lock_acquire+0x19e/0x400 [ 83.310141][ T4321] ? __flush_work+0xfa/0x210 [ 83.314761][ T4321] ? __lock_acquire+0x7d10/0x7d10 [ 83.319917][ T4321] ? read_lock_is_recursive+0x10/0x10 [ 83.325324][ T4321] ? start_flush_work+0x776/0x820 [ 83.330393][ T4321] __flush_work+0x116/0x210 [ 83.335035][ T4321] ? __flush_work+0xfa/0x210 [ 83.339671][ T4321] ? flush_work+0x20/0x20 [ 83.344028][ T4321] ? try_to_grab_pending+0xfa/0x7f0 [ 83.349445][ T4321] ? mark_lock+0x94/0x320 [ 83.353822][ T4321] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 83.359939][ T4321] ? lock_chain_count+0x20/0x20 [ 83.364834][ T4321] ? mark_lock+0x94/0x320 [ 83.369218][ T4321] ? __cancel_work_timer+0x36a/0x560 [ 83.374552][ T4321] __cancel_work_timer+0x3f4/0x560 [ 83.379715][ T4321] ? cancel_work_sync+0x20/0x20 [ 83.384613][ T4321] ? __cancel_work+0x1f9/0x2e0 [ 83.389412][ T4321] ? lockdep_hardirqs_on+0x94/0x140 [ 83.394849][ T4321] ? __cancel_work+0x27b/0x2e0 [ 83.399829][ T4321] ? cancel_work+0x20/0x20 [ 83.404283][ T4321] ? lock_chain_count+0x20/0x20 [ 83.409186][ T4321] hci_request_cancel_all+0xcc/0x300 [ 83.414955][ T4321] hci_dev_do_close+0x4e/0x1030 [ 83.420020][ T4321] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.425961][ T4321] ? _raw_spin_unlock+0x40/0x40 [ 83.430854][ T4321] hci_rfkill_set_block+0x10a/0x190 [ 83.436243][ T4321] ? rcu_lock_release+0x20/0x20 [ 83.441149][ T4321] rfkill_set_block+0x1c6/0x420 [ 83.446053][ T4321] rfkill_fop_write+0x452/0x560 [ 83.450956][ T4321] ? rfkill_fop_read+0x4d0/0x4d0 [ 83.455946][ T4321] ? common_file_perm+0xc0/0x1c0 [ 83.460941][ T4321] ? fsnotify_perm+0x5d/0x560 [ 83.465686][ T4321] ? security_file_permission+0x75/0xa0 [ 83.471288][ T4321] ? rfkill_fop_read+0x4d0/0x4d0 [ 83.476273][ T4321] vfs_write+0x30b/0xd60 [ 83.480557][ T4321] ? file_end_write+0x250/0x250 [ 83.485593][ T4321] ? __context_tracking_exit+0x4c/0x80 [ 83.491114][ T4321] ? __lock_acquire+0x7d10/0x7d10 [ 83.496190][ T4321] ? __fdget_pos+0x1e2/0x370 [ 83.500812][ T4321] ksys_write+0x152/0x260 [ 83.505162][ T4321] ? __ia32_sys_read+0x80/0x80 [ 83.509949][ T4321] ? lockdep_hardirqs_on+0x94/0x140 [ 83.515305][ T4321] do_syscall_64+0x4c/0xa0 [ 83.519763][ T4321] ? clear_bhb_loop+0x30/0x80 [ 83.524455][ T4321] ? clear_bhb_loop+0x30/0x80 [ 83.529157][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.535304][ T4321] RIP: 0033:0x7f2a502ba799 [ 83.539741][ T4321] 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 [ 83.559362][ T4321] RSP: 002b:00007ffdf79b5248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.567797][ T4321] RAX: ffffffffffffffda RBX: 00007f2a50533fa0 RCX: 00007f2a502ba799 [ 83.575790][ T4321] RDX: 0000000000000008 RSI: 0000200000000280 RDI: 0000000000000003 [ 83.583783][ T4321] RBP: 00007f2a50350bd9 R08: 0000000000000000 R09: 0000000000000000 [ 83.591781][ T4321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.600032][ T4321] R13: 00007f2a50533fac R14: 00007f2a50533fa0 R15: 00007f2a50533fa0 [ 83.608041][ T4321] [ 83.613341][ T1108] Bluetooth: hci0: command 0x040f tx timeout