Warning: Permanently added '10.128.1.108' (ED25519) to the list of known hosts. 2025/11/13 09:28:14 parsed 1 programs [ 71.006267][ T4189] cgroup: Unknown subsys name 'net' [ 71.149538][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.474842][ T1429] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.481308][ T1429] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.737571][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.677450][ T1277] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.688252][ T1277] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.698526][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.719419][ T1277] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.728186][ T1277] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.740163][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.249616][ T1172] ODEBUG: Out of memory. ODEBUG disabled [ 76.780755][ T4273] chnl_net:caif_netlink_parms(): no params data found [ 76.847737][ T4273] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.856397][ T4273] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.864715][ T4273] device bridge_slave_0 entered promiscuous mode [ 76.874538][ T4273] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.881897][ T4273] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.890274][ T4273] device bridge_slave_1 entered promiscuous mode [ 76.914539][ T4273] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.926257][ T4273] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.967138][ T4273] team0: Port device team_slave_0 added [ 76.974831][ T4273] team0: Port device team_slave_1 added [ 76.995684][ T4273] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.003345][ T4273] 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. [ 77.029947][ T4273] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.057495][ T4273] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.064752][ T4273] 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. [ 77.091521][ T4273] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.138718][ T4273] device hsr_slave_0 entered promiscuous mode [ 77.145602][ T4273] device hsr_slave_1 entered promiscuous mode [ 77.271115][ T4273] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.282322][ T4273] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.291660][ T4273] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.301669][ T4273] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.362401][ T4273] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.370310][ T4273] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.378281][ T4273] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.386773][ T4273] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.429746][ T4273] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.456896][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.466543][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.474967][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.483780][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.498450][ T4273] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.525646][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.534997][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.542152][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.553275][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.563910][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.571132][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.604646][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.613974][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.640552][ T4273] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.651388][ T4273] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.665790][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.674718][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.684392][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.692929][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.811383][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.819651][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.834463][ T4273] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.855074][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.865307][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.895121][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.904310][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.914344][ T4273] device veth0_vlan entered promiscuous mode [ 77.925363][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.934028][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.946838][ T4273] device veth1_vlan entered promiscuous mode [ 77.971153][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.981089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.990749][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.001421][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.012581][ T4273] device veth0_macvtap entered promiscuous mode [ 78.024271][ T4273] device veth1_macvtap entered promiscuous mode [ 78.045048][ T4273] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.053404][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.063270][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.071416][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.082818][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.094638][ T4273] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.105886][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.121333][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.136489][ T4273] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.148094][ T4273] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.157556][ T4273] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.167576][ T4273] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.273282][ T4273] syz-executor (4273) used greatest stack depth: 20480 bytes left 2025/11/13 09:28:24 executed programs: 0 [ 78.961109][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 79.023772][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.031109][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.039616][ T4299] device bridge_slave_0 entered promiscuous mode [ 79.048711][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.056029][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.064344][ T4299] device bridge_slave_1 entered promiscuous mode [ 79.088577][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.099864][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.126784][ T4299] team0: Port device team_slave_0 added [ 79.136166][ T4299] team0: Port device team_slave_1 added [ 79.159758][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.167334][ T4299] 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. [ 79.194708][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.208981][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.216343][ T4299] 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. [ 79.244518][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.285099][ T4299] device hsr_slave_0 entered promiscuous mode [ 79.292902][ T4299] device hsr_slave_1 entered promiscuous mode [ 79.300081][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.310426][ T4299] Cannot create hsr debugfs directory [ 79.397377][ T4299] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.832758][ T2240] Bluetooth: hci0: command 0x0409 tx timeout [ 81.979918][ T4299] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.912791][ T4252] Bluetooth: hci0: command 0x041b tx timeout [ 83.186886][ T4299] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.235540][ T4299] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.347660][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.358530][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.372228][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.381036][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.446113][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.475333][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.483365][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.493955][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.503883][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.513859][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.522650][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.529722][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.558826][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.567084][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.576801][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.586140][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.593269][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.601549][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.614513][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.625587][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.635855][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.645386][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.668478][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.677812][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.691947][ T4299] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 83.703105][ T4299] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.715529][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.724392][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.733538][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.742694][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.751031][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.830025][ T1172] device hsr_slave_0 left promiscuous mode [ 83.836773][ T1172] device hsr_slave_1 left promiscuous mode [ 83.844350][ T1172] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.851821][ T1172] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.860993][ T1172] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.868740][ T1172] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.876780][ T1172] device bridge_slave_1 left promiscuous mode [ 83.884186][ T1172] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.896857][ T1172] device bridge_slave_0 left promiscuous mode [ 83.904390][ T1172] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.921627][ T1172] device veth1_macvtap left promiscuous mode [ 83.928256][ T1172] device veth0_macvtap left promiscuous mode [ 83.934774][ T1172] device veth1_vlan left promiscuous mode [ 83.940645][ T1172] device veth0_vlan left promiscuous mode [ 84.080648][ T1172] team0 (unregistering): Port device team_slave_1 removed [ 84.095556][ T1172] team0 (unregistering): Port device team_slave_0 removed [ 84.110041][ T1172] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.124763][ T1172] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.178033][ T1172] bond0 (unregistering): Released all slaves [ 84.238173][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.245875][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.258129][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.281230][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.292689][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.312110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.323269][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.332662][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.340681][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.351086][ T4299] device veth0_vlan entered promiscuous mode [ 84.363007][ T4299] device veth1_vlan entered promiscuous mode [ 84.387090][ T4299] device veth0_macvtap entered promiscuous mode [ 84.394633][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.404609][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.412883][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.421363][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.431654][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.460644][ T4299] device veth1_macvtap entered promiscuous mode [ 84.476901][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.484891][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.493328][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.501918][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.513863][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.523090][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.534129][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.544446][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.553638][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.562844][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.571680][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.647189][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.666386][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.684963][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.708641][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.718390][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.728060][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.790882][ T4318] input: syz0 as /devices/virtual/input/input5 [ 84.955439][ T4252] [ 84.957821][ T4252] ====================================================== [ 84.964849][ T4252] WARNING: possible circular locking dependency detected [ 84.971889][ T4252] syzkaller #0 Not tainted [ 84.976321][ T4252] ------------------------------------------------------ [ 84.983350][ T4252] kworker/0:8/4252 is trying to acquire lock: [ 84.989419][ T4252] ffff888027e94c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 85.000790][ T4252] [ 85.000790][ T4252] but task is already holding lock: [ 85.008168][ T4252] ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_epo+0x43/0x170 [ 85.017246][ T4252] [ 85.017246][ T4252] which lock already depends on the new lock. [ 85.017246][ T4252] [ 85.027748][ T4252] [ 85.027748][ T4252] the existing dependency chain (in reverse order) is: [ 85.036794][ T4252] [ 85.036794][ T4252] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.044818][ T4252] __mutex_lock_common+0x1eb/0x2390 [ 85.050568][ T4252] mutex_lock_nested+0x17/0x20 [ 85.055974][ T4252] rfkill_register+0x33/0x8a0 [ 85.061193][ T4252] hci_register_dev+0x452/0x970 [ 85.066582][ T4252] vhci_create_device+0x32c/0x5c0 [ 85.072157][ T4252] vhci_write+0x391/0x450 [ 85.077029][ T4252] vfs_write+0x712/0xd00 [ 85.081947][ T4252] ksys_write+0x14d/0x250 [ 85.086823][ T4252] do_syscall_64+0x4c/0xa0 [ 85.091785][ T4252] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.098233][ T4252] [ 85.098233][ T4252] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.106335][ T4252] __mutex_lock_common+0x1eb/0x2390 [ 85.112389][ T4252] mutex_lock_nested+0x17/0x20 [ 85.117699][ T4252] vhci_send_frame+0x88/0x100 [ 85.123004][ T4252] hci_send_frame+0x1a9/0x2e0 [ 85.128220][ T4252] hci_tx_work+0x9f9/0x1710 [ 85.133260][ T4252] process_one_work+0x863/0x1000 [ 85.138748][ T4252] worker_thread+0xaa8/0x12a0 [ 85.143972][ T4252] kthread+0x436/0x520 [ 85.148677][ T4252] ret_from_fork+0x1f/0x30 [ 85.153727][ T4252] [ 85.153727][ T4252] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.163152][ T4252] __flush_work+0xdd/0x1b0 [ 85.168213][ T4252] hci_dev_do_close+0x1e7/0x1030 [ 85.173784][ T4252] hci_unregister_dev+0x2d7/0x580 [ 85.179449][ T4252] vhci_release+0x73/0xc0 [ 85.184444][ T4252] __fput+0x234/0x930 [ 85.188967][ T4252] task_work_run+0x125/0x1a0 [ 85.194093][ T4252] do_exit+0x61e/0x20a0 [ 85.198806][ T4252] do_group_exit+0x12e/0x300 [ 85.203947][ T4252] get_signal+0x6ca/0x12c0 [ 85.208908][ T4252] arch_do_signal_or_restart+0xc1/0x1300 [ 85.215174][ T4252] exit_to_user_mode_loop+0x9e/0x130 [ 85.221095][ T4252] exit_to_user_mode_prepare+0xee/0x180 [ 85.227229][ T4252] syscall_exit_to_user_mode+0x16/0x40 [ 85.233242][ T4252] do_syscall_64+0x58/0xa0 [ 85.238307][ T4252] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.244878][ T4252] [ 85.244878][ T4252] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.252544][ T4252] __mutex_lock_common+0x1eb/0x2390 [ 85.258290][ T4252] mutex_lock_nested+0x17/0x20 [ 85.263605][ T4252] bg_scan_update+0x44/0x3b0 [ 85.268738][ T4252] process_one_work+0x863/0x1000 [ 85.274307][ T4252] worker_thread+0xaa8/0x12a0 [ 85.279533][ T4252] kthread+0x436/0x520 [ 85.284241][ T4252] ret_from_fork+0x1f/0x30 [ 85.289223][ T4252] [ 85.289223][ T4252] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.299056][ T4252] __lock_acquire+0x2c33/0x7c60 [ 85.304448][ T4252] lock_acquire+0x197/0x3f0 [ 85.309498][ T4252] __flush_work+0xdd/0x1b0 [ 85.314457][ T4252] __cancel_work_timer+0x3ac/0x520 [ 85.320265][ T4252] hci_request_cancel_all+0xcc/0x300 [ 85.326090][ T4252] hci_dev_do_close+0x4e/0x1030 [ 85.331482][ T4252] hci_rfkill_set_block+0x10a/0x190 [ 85.337221][ T4252] rfkill_set_block+0x1c6/0x420 [ 85.342618][ T4252] rfkill_epo+0x75/0x170 [ 85.347402][ T4252] rfkill_op_handler+0x76/0x220 [ 85.352789][ T4252] process_one_work+0x863/0x1000 [ 85.358262][ T4252] worker_thread+0xaa8/0x12a0 [ 85.363476][ T4252] kthread+0x436/0x520 [ 85.368075][ T4252] ret_from_fork+0x1f/0x30 [ 85.373025][ T4252] [ 85.373025][ T4252] other info that might help us debug this: [ 85.373025][ T4252] [ 85.383332][ T4252] Chain exists of: [ 85.383332][ T4252] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 85.383332][ T4252] [ 85.399205][ T4252] Possible unsafe locking scenario: [ 85.399205][ T4252] [ 85.406668][ T4252] CPU0 CPU1 [ 85.412188][ T4252] ---- ---- [ 85.417581][ T4252] lock(rfkill_global_mutex); [ 85.422363][ T4252] lock(&data->open_mutex); [ 85.429488][ T4252] lock(rfkill_global_mutex); [ 85.436902][ T4252] lock((work_completion)(&hdev->bg_scan_update)); [ 85.443515][ T4252] [ 85.443515][ T4252] *** DEADLOCK *** [ 85.443515][ T4252] [ 85.451791][ T4252] 3 locks held by kworker/0:8/4252: [ 85.457006][ T4252] #0: ffff888016870938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x760/0x1000 [ 85.467481][ T4252] #1: ffffc90002fcfd00 ((rfkill_op_work).work){+.+.}-{0:0}, at: process_one_work+0x7a3/0x1000 [ 85.477873][ T4252] #2: ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_epo+0x43/0x170 [ 85.487483][ T4252] [ 85.487483][ T4252] stack backtrace: [ 85.493384][ T4252] CPU: 0 PID: 4252 Comm: kworker/0:8 Not tainted syzkaller #0 [ 85.500939][ T4252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 85.511193][ T4252] Workqueue: events rfkill_op_handler [ 85.516613][ T4252] Call Trace: [ 85.519905][ T4252] [ 85.523042][ T4252] dump_stack_lvl+0x168/0x230 [ 85.527852][ T4252] ? load_image+0x3b0/0x3b0 [ 85.532381][ T4252] ? show_regs_print_info+0x20/0x20 [ 85.537605][ T4252] ? print_circular_bug+0x12b/0x1a0 [ 85.542822][ T4252] check_noncircular+0x274/0x310 [ 85.547790][ T4252] ? add_chain_block+0x940/0x940 [ 85.552743][ T4252] ? lockdep_lock+0xdc/0x1e0 [ 85.557373][ T4252] ? __lock_acquire+0x12d9/0x7c60 [ 85.562425][ T4252] ? lockdep_lock+0x1e0/0x1e0 [ 85.567313][ T4252] ? mark_lock+0x94/0x320 [ 85.571888][ T4252] __lock_acquire+0x2c33/0x7c60 [ 85.576758][ T4252] ? unwind_next_frame+0x1296/0x1d90 [ 85.582057][ T4252] ? verify_lock_unused+0x140/0x140 [ 85.587266][ T4252] ? ret_from_fork+0x1e/0x30 [ 85.591951][ T4252] lock_acquire+0x197/0x3f0 [ 85.596466][ T4252] ? __flush_work+0xc1/0x1b0 [ 85.601056][ T4252] ? __lock_acquire+0x7c60/0x7c60 [ 85.606087][ T4252] ? read_lock_is_recursive+0x10/0x10 [ 85.611656][ T4252] ? start_flush_work+0x776/0x820 [ 85.616768][ T4252] ? kasan_set_track+0x62/0x70 [ 85.621539][ T4252] __flush_work+0xdd/0x1b0 [ 85.625989][ T4252] ? __flush_work+0xc1/0x1b0 [ 85.630584][ T4252] ? flush_work+0x20/0x20 [ 85.635059][ T4252] ? try_to_grab_pending+0xf3/0x7e0 [ 85.640638][ T4252] ? lockdep_hardirqs_off+0x70/0x100 [ 85.646013][ T4252] ? mark_lock+0x94/0x320 [ 85.650434][ T4252] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 85.656423][ T4252] ? lock_chain_count+0x20/0x20 [ 85.661274][ T4252] ? lockdep_hardirqs_off+0x70/0x100 [ 85.666569][ T4252] ? mark_lock+0x94/0x320 [ 85.671001][ T4252] ? __cancel_work_timer+0x331/0x520 [ 85.676470][ T4252] __cancel_work_timer+0x3ac/0x520 [ 85.681589][ T4252] ? cancel_work_sync+0x20/0x20 [ 85.686562][ T4252] ? __cancel_work+0x1f4/0x2d0 [ 85.691327][ T4252] ? lockdep_hardirqs_on+0x94/0x140 [ 85.696546][ T4252] ? __cancel_work+0x26f/0x2d0 [ 85.701316][ T4252] ? cancel_work+0x20/0x20 [ 85.705737][ T4252] hci_request_cancel_all+0xcc/0x300 [ 85.711039][ T4252] hci_dev_do_close+0x4e/0x1030 [ 85.715891][ T4252] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.721802][ T4252] ? _raw_spin_unlock+0x40/0x40 [ 85.726653][ T4252] ? kobject_uevent_env+0x371/0x890 [ 85.731865][ T4252] hci_rfkill_set_block+0x10a/0x190 [ 85.737256][ T4252] ? rcu_lock_release+0x20/0x20 [ 85.742123][ T4252] rfkill_set_block+0x1c6/0x420 [ 85.746990][ T4252] rfkill_epo+0x75/0x170 [ 85.751267][ T4252] rfkill_op_handler+0x76/0x220 [ 85.756121][ T4252] process_one_work+0x863/0x1000 [ 85.761346][ T4252] ? worker_detach_from_pool+0x240/0x240 [ 85.767096][ T4252] ? lockdep_hardirqs_off+0x70/0x100 [ 85.772427][ T4252] ? _raw_spin_lock_irq+0xab/0xe0 [ 85.777466][ T4252] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 85.782844][ T4252] ? wq_worker_running+0x97/0x170 [ 85.787873][ T4252] worker_thread+0xaa8/0x12a0 [ 85.792753][ T4252] kthread+0x436/0x520 [ 85.797023][ T4252] ? rcu_lock_release+0x20/0x20 [ 85.801888][ T4252] ? kthread_blkcg+0xd0/0xd0 [ 85.806501][ T4252] ret_from_fork+0x1f/0x30 [ 85.810936][ T4252]