Warning: Permanently added '10.128.1.105' (ED25519) to the list of known hosts. 2026/06/04 14:21:16 parsed 1 programs [ 70.073359][ T4199] cgroup: Unknown subsys name 'net' [ 70.197155][ T4199] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.293897][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.300440][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.727320][ T4199] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.332017][ T155] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.340087][ T155] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.352233][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.377431][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.385375][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.395917][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.271644][ T4236] chnl_net:caif_netlink_parms(): no params data found [ 74.340425][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.348343][ T4236] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.357845][ T4236] device bridge_slave_0 entered promiscuous mode [ 74.368169][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.376680][ T4236] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.384926][ T4236] device bridge_slave_1 entered promiscuous mode [ 74.413977][ T4236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.426719][ T4236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.457588][ T4236] team0: Port device team_slave_0 added [ 74.465803][ T4236] team0: Port device team_slave_1 added [ 74.490291][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.498716][ T4236] 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. [ 74.526032][ T4236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.539529][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.548365][ T4236] 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. [ 74.575923][ T4236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.618675][ T4236] device hsr_slave_0 entered promiscuous mode [ 74.627015][ T4236] device hsr_slave_1 entered promiscuous mode [ 74.779282][ T4236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.792375][ T4236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.804920][ T4236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.815233][ T4236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.904266][ T4236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.920556][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.933448][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.941883][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.955369][ T4236] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.975476][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.985673][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.995143][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.002451][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.015761][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.024220][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.033124][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.042979][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.050087][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.076975][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.089018][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.098558][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.112617][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.127491][ T4236] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.140252][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.150435][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.256231][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.266485][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.287483][ T4236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.312106][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.337510][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.356135][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.370361][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.383968][ T4236] device veth0_vlan entered promiscuous mode [ 75.414902][ T4236] device veth1_vlan entered promiscuous mode [ 75.436501][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.445315][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.456927][ T4236] device veth0_macvtap entered promiscuous mode [ 75.468485][ T4236] device veth1_macvtap entered promiscuous mode [ 75.485523][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.494335][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.502655][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.510615][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.520321][ T1582] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.532555][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.539943][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.548940][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.561626][ T4236] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.570949][ T4236] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.579688][ T4236] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.588896][ T4236] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.688708][ T4236] syz-executor (4236) used greatest stack depth: 20464 bytes left 2026/06/04 14:21:25 executed programs: 0 [ 77.881971][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 77.934258][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.941739][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.949941][ T4301] device bridge_slave_0 entered promiscuous mode [ 77.958988][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.966605][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.975201][ T4301] device bridge_slave_1 entered promiscuous mode [ 78.004364][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.018475][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.048582][ T4301] team0: Port device team_slave_0 added [ 78.056508][ T4301] team0: Port device team_slave_1 added [ 78.076197][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.083213][ 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. [ 78.109138][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.121474][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.128479][ 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. [ 78.154750][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.200052][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.218488][ T4301] device hsr_slave_0 entered promiscuous mode [ 78.226891][ T4301] device hsr_slave_1 entered promiscuous mode [ 78.233943][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 78.241922][ T4301] Cannot create hsr debugfs directory [ 79.771708][ T4202] Bluetooth: hci0: command 0x0409 tx timeout [ 81.097479][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.147602][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.199463][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.850917][ T4257] Bluetooth: hci0: command 0x041b tx timeout [ 82.199236][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.209791][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.245579][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.255821][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.339861][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.354477][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.363038][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.374144][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.402809][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.412733][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.421413][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.428495][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.437414][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.448800][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.457890][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.466707][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.473881][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.517476][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.526673][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.536484][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.546507][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.556558][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 82.565306][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.575744][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.610952][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.619428][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.633348][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.642619][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.660206][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.774791][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.782694][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.796382][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.814412][ T144] device hsr_slave_0 left promiscuous mode [ 82.821187][ T144] device hsr_slave_1 left promiscuous mode [ 82.827608][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.836113][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.845272][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.852748][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.860530][ T144] device bridge_slave_1 left promiscuous mode [ 82.867910][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.883043][ T144] device bridge_slave_0 left promiscuous mode [ 82.889298][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.907238][ T144] device veth1_macvtap left promiscuous mode [ 82.914904][ T144] device veth0_macvtap left promiscuous mode [ 82.921174][ T144] device veth1_vlan left promiscuous mode [ 82.927184][ T144] device veth0_vlan left promiscuous mode [ 83.104211][ T144] team0 (unregistering): Port device team_slave_1 removed [ 83.118707][ T144] team0 (unregistering): Port device team_slave_0 removed [ 83.133243][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.147349][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.206035][ T144] bond0 (unregistering): Released all slaves [ 83.262451][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.273813][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.295348][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.303988][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.313196][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.321489][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.330318][ T4301] device veth0_vlan entered promiscuous mode [ 83.346258][ T4301] device veth1_vlan entered promiscuous mode [ 83.363274][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.372592][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.389975][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.399338][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.410481][ T4301] device veth0_macvtap entered promiscuous mode [ 83.421665][ T4301] device veth1_macvtap entered promiscuous mode [ 83.441650][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.449098][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.462224][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.470271][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.479055][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.492517][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.499933][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.509018][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.520545][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.529722][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.539786][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.548866][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.617853][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.629299][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.649023][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.664380][ T4348] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.672319][ T4348] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.682042][ T4348] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.828128][ T4349] [ 83.830514][ T4349] ====================================================== [ 83.837542][ T4349] WARNING: possible circular locking dependency detected [ 83.844587][ T4349] syzkaller #0 Not tainted [ 83.849023][ T4349] ------------------------------------------------------ [ 83.856053][ T4349] syz.0.17/4349 is trying to acquire lock: [ 83.861870][ T4349] ffff8880252e9028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 83.872958][ T4349] [ 83.872958][ T4349] but task is already holding lock: [ 83.880334][ T4349] ffffffff8d6c73e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.890018][ T4349] [ 83.890018][ T4349] which lock already depends on the new lock. [ 83.890018][ T4349] [ 83.900446][ T4349] [ 83.900446][ T4349] the existing dependency chain (in reverse order) is: [ 83.909484][ T4349] [ 83.909484][ T4349] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.917517][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 83.923269][ T4349] mutex_lock_nested+0x17/0x20 [ 83.928739][ T4349] rfkill_register+0x33/0x980 [ 83.933980][ T4349] hci_register_dev+0x452/0x970 [ 83.934279][ T21] Bluetooth: hci0: command 0x040f tx timeout [ 83.939410][ T4349] vhci_create_device+0x32c/0x5c0 [ 83.950951][ T4349] vhci_write+0x391/0x450 [ 83.955828][ T4349] vfs_write+0x745/0xd60 [ 83.960709][ T4349] ksys_write+0x152/0x260 [ 83.965595][ T4349] do_syscall_64+0x4c/0xa0 [ 83.970556][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.976999][ T4349] [ 83.976999][ T4349] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.984844][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 83.990593][ T4349] mutex_lock_nested+0x17/0x20 [ 83.995924][ T4349] vhci_send_frame+0x88/0x100 [ 84.001155][ T4349] hci_send_frame+0x1a9/0x2e0 [ 84.006396][ T4349] hci_tx_work+0x9f9/0x1710 [ 84.011439][ T4349] process_one_work+0x85f/0x1010 [ 84.016928][ T4349] worker_thread+0xaa6/0x1290 [ 84.022154][ T4349] kthread+0x436/0x520 [ 84.026767][ T4349] ret_from_fork+0x1f/0x30 [ 84.031730][ T4349] [ 84.031730][ T4349] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.040966][ T4349] __flush_work+0x116/0x210 [ 84.046026][ T4349] hci_dev_do_close+0x1e7/0x1030 [ 84.051518][ T4349] hci_unregister_dev+0x2eb/0x590 [ 84.057091][ T4349] vhci_release+0x73/0xc0 [ 84.061969][ T4349] __fput+0x234/0x930 [ 84.066500][ T4349] task_work_run+0x125/0x1a0 [ 84.071639][ T4349] do_exit+0x626/0x20c0 [ 84.076343][ T4349] do_group_exit+0x12e/0x300 [ 84.081480][ T4349] get_signal+0x6d6/0x12d0 [ 84.086443][ T4349] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.092629][ T4349] exit_to_user_mode_loop+0x9e/0x130 [ 84.098457][ T4349] exit_to_user_mode_prepare+0xee/0x180 [ 84.104543][ T4349] syscall_exit_to_user_mode+0x16/0x40 [ 84.110558][ T4349] do_syscall_64+0x58/0xa0 [ 84.115571][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.122013][ T4349] [ 84.122013][ T4349] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.129684][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 84.135442][ T4349] mutex_lock_nested+0x17/0x20 [ 84.140759][ T4349] bg_scan_update+0x44/0x3b0 [ 84.145898][ T4349] process_one_work+0x85f/0x1010 [ 84.151384][ T4349] worker_thread+0xaa6/0x1290 [ 84.156606][ T4349] kthread+0x436/0x520 [ 84.161230][ T4349] ret_from_fork+0x1f/0x30 [ 84.166198][ T4349] [ 84.166198][ T4349] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.176038][ T4349] __lock_acquire+0x2c42/0x7d10 [ 84.181438][ T4349] lock_acquire+0x19e/0x400 [ 84.186531][ T4349] __flush_work+0x116/0x210 [ 84.191586][ T4349] __cancel_work_timer+0x3f4/0x560 [ 84.197256][ T4349] hci_request_cancel_all+0xcc/0x300 [ 84.203130][ T4349] hci_dev_do_close+0x4e/0x1030 [ 84.208617][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 84.214364][ T4349] rfkill_set_block+0x1c9/0x3d0 [ 84.219761][ T4349] rfkill_fop_write+0x452/0x560 [ 84.225153][ T4349] vfs_write+0x30b/0xd60 [ 84.229942][ T4349] ksys_write+0x152/0x260 [ 84.234816][ T4349] do_syscall_64+0x4c/0xa0 [ 84.239774][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.246213][ T4349] [ 84.246213][ T4349] other info that might help us debug this: [ 84.246213][ T4349] [ 84.256457][ T4349] Chain exists of: [ 84.256457][ T4349] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.256457][ T4349] [ 84.272218][ T4349] Possible unsafe locking scenario: [ 84.272218][ T4349] [ 84.279689][ T4349] CPU0 CPU1 [ 84.285119][ T4349] ---- ---- [ 84.290513][ T4349] lock(rfkill_global_mutex); [ 84.295310][ T4349] lock(&data->open_mutex); [ 84.302454][ T4349] lock(rfkill_global_mutex); [ 84.309766][ T4349] lock((work_completion)(&hdev->bg_scan_update)); [ 84.316383][ T4349] [ 84.316383][ T4349] *** DEADLOCK *** [ 84.316383][ T4349] [ 84.324549][ T4349] 1 lock held by syz.0.17/4349: [ 84.329416][ T4349] #0: ffffffff8d6c73e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.339552][ T4349] [ 84.339552][ T4349] stack backtrace: [ 84.345475][ T4349] CPU: 0 PID: 4349 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.352705][ T4349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 84.362808][ T4349] Call Trace: [ 84.366118][ T4349] [ 84.369076][ T4349] dump_stack_lvl+0x188/0x250 [ 84.373778][ T4349] ? load_image+0x400/0x400 [ 84.378301][ T4349] ? show_regs_print_info+0x20/0x20 [ 84.383658][ T4349] ? print_circular_bug+0x12b/0x1a0 [ 84.388891][ T4349] check_noncircular+0x296/0x330 [ 84.393870][ T4349] ? look_up_lock_class+0x71/0x110 [ 84.399022][ T4349] ? add_chain_block+0x940/0x940 [ 84.404129][ T4349] ? lockdep_lock+0xf1/0x1f0 [ 84.408767][ T4349] ? __lock_acquire+0x12e8/0x7d10 [ 84.413837][ T4349] ? mark_lock+0x94/0x320 [ 84.418213][ T4349] __lock_acquire+0x2c42/0x7d10 [ 84.423114][ T4349] ? verify_lock_unused+0x140/0x140 [ 84.428351][ T4349] ? verify_lock_unused+0x140/0x140 [ 84.433574][ T4349] ? mark_lock+0x94/0x320 [ 84.437930][ T4349] lock_acquire+0x19e/0x400 [ 84.442458][ T4349] ? __flush_work+0xfa/0x210 [ 84.447124][ T4349] ? __lock_acquire+0x7d10/0x7d10 [ 84.452185][ T4349] ? read_lock_is_recursive+0x10/0x10 [ 84.457589][ T4349] ? start_flush_work+0x776/0x820 [ 84.462650][ T4349] __flush_work+0x116/0x210 [ 84.467179][ T4349] ? __flush_work+0xfa/0x210 [ 84.471811][ T4349] ? flush_work+0x20/0x20 [ 84.476349][ T4349] ? try_to_grab_pending+0xfa/0x7f0 [ 84.481575][ T4349] ? mark_lock+0x94/0x320 [ 84.485932][ T4349] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 84.491943][ T4349] ? lock_chain_count+0x20/0x20 [ 84.496826][ T4349] ? mark_lock+0x94/0x320 [ 84.501188][ T4349] ? __cancel_work_timer+0x36a/0x560 [ 84.506516][ T4349] __cancel_work_timer+0x3f4/0x560 [ 84.511693][ T4349] ? cancel_work_sync+0x20/0x20 [ 84.516567][ T4349] ? __cancel_work+0x1f9/0x2e0 [ 84.521354][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 84.526580][ T4349] ? __cancel_work+0x27b/0x2e0 [ 84.531368][ T4349] ? cancel_work+0x20/0x20 [ 84.535816][ T4349] ? lock_chain_count+0x20/0x20 [ 84.540714][ T4349] hci_request_cancel_all+0xcc/0x300 [ 84.546069][ T4349] hci_dev_do_close+0x4e/0x1030 [ 84.550954][ T4349] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 84.556874][ T4349] ? _raw_spin_unlock+0x40/0x40 [ 84.561751][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 84.566984][ T4349] ? rcu_lock_release+0x20/0x20 [ 84.571898][ T4349] rfkill_set_block+0x1c9/0x3d0 [ 84.576790][ T4349] rfkill_fop_write+0x452/0x560 [ 84.581677][ T4349] ? rfkill_fop_read+0x520/0x520 [ 84.586653][ T4349] ? common_file_perm+0xb0/0x1c0 [ 84.591619][ T4349] ? fsnotify_perm+0x5d/0x560 [ 84.596320][ T4349] ? security_file_permission+0x75/0xa0 [ 84.601894][ T4349] ? rfkill_fop_read+0x520/0x520 [ 84.606866][ T4349] vfs_write+0x30b/0xd60 [ 84.611139][ T4349] ? file_end_write+0x250/0x250 [ 84.616024][ T4349] ? __context_tracking_exit+0x4c/0x80 [ 84.621523][ T4349] ? __lock_acquire+0x7d10/0x7d10 [ 84.626596][ T4349] ? __fdget_pos+0x1e2/0x370 [ 84.631266][ T4349] ksys_write+0x152/0x260 [ 84.635636][ T4349] ? __ia32_sys_read+0x80/0x80 [ 84.640433][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 84.645667][ T4349] do_syscall_64+0x4c/0xa0 [ 84.650108][ T4349] ? clear_bhb_loop+0x30/0x80 [ 84.654811][ T4349] ? clear_bhb_loop+0x30/0x80 [ 84.659520][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.665464][ T4349] RIP: 0033:0x7f1c802d7e59 [ 84.669907][ T4349] 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 [ 84.689533][ T4349] RSP: 002b:00007ffdfaa88ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.697982][ T4349] RAX: ffffffffffffffda RBX: 00007f1c80550fa0 RCX: 00007f1c802d7e59 [ 84.706024][ T4349] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 84.714023][ T4349] RBP: 00007f1c8036dd6f R08: 0000000000000000 R09: 0000000000000000 [ 84.722020][ T4349] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.730016][ T4349] R13: 00007f1c80550fac R14: 00007f1c80550fa0 R15: 00007f1c80550fa0 [ 84.738017][ T4349]