Warning: Permanently added '10.128.0.147' (ED25519) to the list of known hosts. 2026/02/01 15:05:31 parsed 1 programs [ 60.990797][ T4189] cgroup: Unknown subsys name 'net' [ 61.131555][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 62.646662][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 64.719525][ T4213] chnl_net:caif_netlink_parms(): no params data found [ 64.766905][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.774732][ T4213] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.782846][ T4213] device bridge_slave_0 entered promiscuous mode [ 64.792096][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.799581][ T4213] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.808081][ T4213] device bridge_slave_1 entered promiscuous mode [ 64.832812][ T4213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.844315][ T4213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.865789][ T4213] team0: Port device team_slave_0 added [ 64.873560][ T4213] team0: Port device team_slave_1 added [ 64.893426][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.902174][ T4213] 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. [ 64.931097][ T4213] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.947042][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.954518][ T4213] 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. [ 64.985243][ T4213] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.029171][ T4213] device hsr_slave_0 entered promiscuous mode [ 65.036705][ T4213] device hsr_slave_1 entered promiscuous mode [ 65.184098][ T4213] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.197242][ T4213] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.210124][ T4213] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.220970][ T4213] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.257397][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.265254][ T4213] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.274097][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.282289][ T4213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.347523][ T4213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.362061][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.376842][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.386401][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.394852][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.411858][ T4213] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.424684][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.434877][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.442217][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.467101][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.478919][ T1404] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.486291][ T1404] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.502125][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.512138][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.536366][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.545935][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.559846][ T4213] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.572284][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.582439][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.713656][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.722059][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.740027][ T4213] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.763426][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.773854][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.797305][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.807718][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.830757][ T4213] device veth0_vlan entered promiscuous mode [ 65.840506][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.850740][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.864046][ T4213] device veth1_vlan entered promiscuous mode [ 65.889918][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.899425][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.908671][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.918574][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.930235][ T4213] device veth0_macvtap entered promiscuous mode [ 65.942177][ T4213] device veth1_macvtap entered promiscuous mode [ 65.961203][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.970625][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.987488][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.996192][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.004924][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.017314][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.025372][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.035690][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.058273][ T4213] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.067895][ T4213] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.077528][ T4213] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.087253][ T4213] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.210307][ T4213] syz-executor (4213) used greatest stack depth: 20112 bytes left [ 66.348702][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.006755][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.020323][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.031621][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.046971][ T4265] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.055697][ T4265] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.064487][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/02/01 15:05:40 executed programs: 0 [ 68.078822][ T4286] chnl_net:caif_netlink_parms(): no params data found [ 68.119042][ T4286] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.126849][ T4286] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.136140][ T4286] device bridge_slave_0 entered promiscuous mode [ 68.145408][ T4286] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.152918][ T4286] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.161600][ T4286] device bridge_slave_1 entered promiscuous mode [ 68.180710][ T4286] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.192358][ T4286] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.214024][ T4286] team0: Port device team_slave_0 added [ 68.222623][ T4286] team0: Port device team_slave_1 added [ 68.237923][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.245427][ T4286] 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. [ 68.276220][ T4286] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.289984][ T4286] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.298161][ T4286] 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. [ 68.325869][ T4286] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.357040][ T4286] device hsr_slave_0 entered promiscuous mode [ 68.363961][ T4286] device hsr_slave_1 entered promiscuous mode [ 68.372530][ T4286] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.381065][ T4286] Cannot create hsr debugfs directory [ 68.560968][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.056159][ T4240] Bluetooth: hci0: command 0x0409 tx timeout [ 71.361299][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.432597][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.498120][ T1426] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.505740][ T1426] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.135182][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 72.312745][ T4286] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.322392][ T4286] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.332494][ T4286] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.356085][ T4286] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.425627][ T4286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.440713][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.450281][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.470044][ T4286] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.480796][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.490750][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.500726][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.508456][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.520095][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.528891][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.539349][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.548818][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.556692][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.576248][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.586141][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.596580][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.606120][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.615930][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.625792][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.634661][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.646762][ T527] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.656665][ T527] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.670591][ T154] device hsr_slave_0 left promiscuous mode [ 72.679880][ T154] device hsr_slave_1 left promiscuous mode [ 72.687308][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.695489][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.703964][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.712234][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.720235][ T154] device bridge_slave_1 left promiscuous mode [ 72.727868][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.740025][ T154] device bridge_slave_0 left promiscuous mode [ 72.747739][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.765181][ T154] device veth1_macvtap left promiscuous mode [ 72.771798][ T154] device veth0_macvtap left promiscuous mode [ 72.779000][ T154] device veth1_vlan left promiscuous mode [ 72.785224][ T154] device veth0_vlan left promiscuous mode [ 72.928303][ T154] team0 (unregistering): Port device team_slave_1 removed [ 72.941121][ T154] team0 (unregistering): Port device team_slave_0 removed [ 72.958383][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.972769][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.028014][ T154] bond0 (unregistering): Released all slaves [ 73.094647][ T4286] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.111724][ T4286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.122201][ T527] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.131522][ T527] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.230379][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.238704][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.257917][ T4286] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.289213][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.307208][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.324641][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.335361][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.346651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.356539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.366022][ T4286] device veth0_vlan entered promiscuous mode [ 73.383252][ T4286] device veth1_vlan entered promiscuous mode [ 73.400966][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.409991][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.419498][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.429227][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.439605][ T4286] device veth0_macvtap entered promiscuous mode [ 73.456991][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.466710][ T4286] device veth1_macvtap entered promiscuous mode [ 73.489068][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.504299][ T4286] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.512524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.523804][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.533318][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.545986][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.560180][ T4286] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.570040][ T4286] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.579489][ T4286] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.589045][ T4286] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.661939][ T527] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.685370][ T527] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.698799][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.709636][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.722355][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.733662][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.933111][ T4339] [ 73.935575][ T4339] ====================================================== [ 73.942975][ T4339] WARNING: possible circular locking dependency detected [ 73.950605][ T4339] syzkaller #0 Not tainted [ 73.955038][ T4339] ------------------------------------------------------ [ 73.962811][ T4339] syz.0.17/4339 is trying to acquire lock: [ 73.968746][ T4339] ffff888024cf4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 73.981261][ T4339] [ 73.981261][ T4339] but task is already holding lock: [ 73.989124][ T4339] ffffffff8d6c47c8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 73.999538][ T4339] [ 73.999538][ T4339] which lock already depends on the new lock. [ 73.999538][ T4339] [ 74.010675][ T4339] [ 74.010675][ T4339] the existing dependency chain (in reverse order) is: [ 74.020673][ T4339] [ 74.020673][ T4339] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 74.028961][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 74.034831][ T4339] mutex_lock_nested+0x17/0x20 [ 74.040318][ T4339] rfkill_register+0x33/0x8a0 [ 74.045554][ T4339] hci_register_dev+0x452/0x970 [ 74.051213][ T4339] vhci_create_device+0x32c/0x5c0 [ 74.057134][ T4339] vhci_write+0x391/0x450 [ 74.062192][ T4339] vfs_write+0x745/0xd60 [ 74.067072][ T4339] ksys_write+0x152/0x260 [ 74.072041][ T4339] do_syscall_64+0x4c/0xa0 [ 74.077006][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.083555][ T4339] [ 74.083555][ T4339] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 74.091742][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 74.097576][ T4339] mutex_lock_nested+0x17/0x20 [ 74.102906][ T4339] vhci_send_frame+0x88/0x100 [ 74.108291][ T4339] hci_send_frame+0x1a9/0x2e0 [ 74.113937][ T4339] hci_tx_work+0x9f9/0x1710 [ 74.119238][ T4339] process_one_work+0x85f/0x1010 [ 74.125330][ T4339] worker_thread+0xaa6/0x1290 [ 74.130624][ T4339] kthread+0x436/0x520 [ 74.135574][ T4339] ret_from_fork+0x1f/0x30 [ 74.140710][ T4339] [ 74.140710][ T4339] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 74.150654][ T4339] __flush_work+0x116/0x210 [ 74.156189][ T4339] hci_dev_do_close+0x1e7/0x1030 [ 74.162468][ T4339] hci_unregister_dev+0x2d7/0x580 [ 74.168218][ T4339] vhci_release+0x73/0xc0 [ 74.173370][ T4339] __fput+0x234/0x930 [ 74.177954][ T4339] task_work_run+0x125/0x1a0 [ 74.183281][ T4339] do_exit+0x626/0x20c0 [ 74.188319][ T4339] do_group_exit+0x12e/0x300 [ 74.193701][ T4339] get_signal+0x6ca/0x12c0 [ 74.198732][ T4339] arch_do_signal_or_restart+0xe7/0x12c0 [ 74.205153][ T4339] exit_to_user_mode_loop+0x9e/0x130 [ 74.211397][ T4339] exit_to_user_mode_prepare+0xee/0x180 [ 74.217631][ T4339] syscall_exit_to_user_mode+0x16/0x40 [ 74.223705][ T4339] do_syscall_64+0x58/0xa0 [ 74.228813][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.235234][ T4339] [ 74.235234][ T4339] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 74.243503][ T4339] __mutex_lock_common+0x1e3/0x2400 [ 74.249327][ T4339] mutex_lock_nested+0x17/0x20 [ 74.254986][ T4339] bg_scan_update+0x44/0x3b0 [ 74.260099][ T4339] process_one_work+0x85f/0x1010 [ 74.265827][ T4339] worker_thread+0xaa6/0x1290 [ 74.271116][ T4339] kthread+0x436/0x520 [ 74.275876][ T4339] ret_from_fork+0x1f/0x30 [ 74.281256][ T4339] [ 74.281256][ T4339] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 74.291599][ T4339] __lock_acquire+0x2c42/0x7d10 [ 74.297693][ T4339] lock_acquire+0x19e/0x400 [ 74.303359][ T4339] __flush_work+0x116/0x210 [ 74.309936][ T4339] __cancel_work_timer+0x3f4/0x560 [ 74.316106][ T4339] hci_request_cancel_all+0xcc/0x300 [ 74.322339][ T4339] hci_dev_do_close+0x4e/0x1030 [ 74.328166][ T4339] hci_rfkill_set_block+0x10a/0x190 [ 74.334616][ T4339] rfkill_set_block+0x1c6/0x420 [ 74.340334][ T4339] rfkill_fop_write+0x452/0x560 [ 74.345876][ T4339] vfs_write+0x30b/0xd60 [ 74.350727][ T4339] ksys_write+0x152/0x260 [ 74.356099][ T4339] do_syscall_64+0x4c/0xa0 [ 74.361121][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.367720][ T4339] [ 74.367720][ T4339] other info that might help us debug this: [ 74.367720][ T4339] [ 74.379206][ T4339] Chain exists of: [ 74.379206][ T4339] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 74.379206][ T4339] [ 74.396123][ T4339] Possible unsafe locking scenario: [ 74.396123][ T4339] [ 74.404217][ T4339] CPU0 CPU1 [ 74.410127][ T4339] ---- ---- [ 74.416012][ T4339] lock(rfkill_global_mutex); [ 74.420949][ T4339] lock(&data->open_mutex); [ 74.428434][ T4339] lock(rfkill_global_mutex); [ 74.435989][ T4339] lock((work_completion)(&hdev->bg_scan_update)); [ 74.442574][ T4339] [ 74.442574][ T4339] *** DEADLOCK *** [ 74.442574][ T4339] [ 74.450980][ T4339] 1 lock held by syz.0.17/4339: [ 74.456040][ T4339] #0: ffffffff8d6c47c8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 74.466688][ T4339] [ 74.466688][ T4339] stack backtrace: [ 74.472933][ T4339] CPU: 1 PID: 4339 Comm: syz.0.17 Not tainted syzkaller #0 [ 74.480573][ T4339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 74.491187][ T4339] Call Trace: [ 74.494571][ T4339] [ 74.497869][ T4339] dump_stack_lvl+0x188/0x250 [ 74.502942][ T4339] ? load_image+0x400/0x400 [ 74.508379][ T4339] ? show_regs_print_info+0x20/0x20 [ 74.514229][ T4339] ? print_circular_bug+0x12b/0x1a0 [ 74.520363][ T4339] check_noncircular+0x296/0x330 [ 74.525677][ T4339] ? look_up_lock_class+0x71/0x110 [ 74.530981][ T4339] ? add_chain_block+0x940/0x940 [ 74.536242][ T4339] ? lockdep_lock+0xf1/0x1f0 [ 74.541055][ T4339] ? __lock_acquire+0x12e8/0x7d10 [ 74.546481][ T4339] ? mark_lock+0x94/0x320 [ 74.551186][ T4339] __lock_acquire+0x2c42/0x7d10 [ 74.556522][ T4339] ? verify_lock_unused+0x140/0x140 [ 74.562112][ T4339] ? verify_lock_unused+0x140/0x140 [ 74.567499][ T4339] ? mark_lock+0x94/0x320 [ 74.572064][ T4339] lock_acquire+0x19e/0x400 [ 74.576683][ T4339] ? __flush_work+0xfa/0x210 [ 74.581559][ T4339] ? __lock_acquire+0x7d10/0x7d10 [ 74.586583][ T4339] ? read_lock_is_recursive+0x10/0x10 [ 74.592308][ T4339] ? start_flush_work+0x776/0x820 [ 74.597596][ T4339] __flush_work+0x116/0x210 [ 74.602837][ T4339] ? __flush_work+0xfa/0x210 [ 74.607538][ T4339] ? flush_work+0x20/0x20 [ 74.612056][ T4339] ? try_to_grab_pending+0xfa/0x7f0 [ 74.617411][ T4339] ? mark_lock+0x94/0x320 [ 74.621917][ T4339] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 74.628001][ T4339] ? lock_chain_count+0x20/0x20 [ 74.633055][ T4339] ? mark_lock+0x94/0x320 [ 74.637929][ T4339] ? __cancel_work_timer+0x36a/0x560 [ 74.643622][ T4339] __cancel_work_timer+0x3f4/0x560 [ 74.649140][ T4339] ? cancel_work_sync+0x20/0x20 [ 74.654559][ T4339] ? __cancel_work+0x1f9/0x2e0 [ 74.659506][ T4339] ? lockdep_hardirqs_on+0x94/0x140 [ 74.664881][ T4339] ? __cancel_work+0x27b/0x2e0 [ 74.669833][ T4339] ? cancel_work+0x20/0x20 [ 74.674362][ T4339] ? lock_chain_count+0x20/0x20 [ 74.679391][ T4339] hci_request_cancel_all+0xcc/0x300 [ 74.684779][ T4339] hci_dev_do_close+0x4e/0x1030 [ 74.689824][ T4339] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 74.696411][ T4339] ? _raw_spin_unlock+0x40/0x40 [ 74.701466][ T4339] hci_rfkill_set_block+0x10a/0x190 [ 74.706839][ T4339] ? rcu_lock_release+0x20/0x20 [ 74.711687][ T4339] rfkill_set_block+0x1c6/0x420 [ 74.716724][ T4339] rfkill_fop_write+0x452/0x560 [ 74.721673][ T4339] ? rfkill_fop_read+0x4d0/0x4d0 [ 74.726697][ T4339] ? common_file_perm+0xc0/0x1c0 [ 74.731637][ T4339] ? fsnotify_perm+0x5d/0x560 [ 74.737211][ T4339] ? security_file_permission+0x75/0xa0 [ 74.742835][ T4339] ? rfkill_fop_read+0x4d0/0x4d0 [ 74.747878][ T4339] vfs_write+0x30b/0xd60 [ 74.753222][ T4339] ? file_end_write+0x250/0x250 [ 74.758075][ T4339] ? __context_tracking_exit+0x4c/0x80 [ 74.763926][ T4339] ? __lock_acquire+0x7d10/0x7d10 [ 74.769148][ T4339] ? __fdget_pos+0x1e2/0x370 [ 74.773828][ T4339] ksys_write+0x152/0x260 [ 74.778330][ T4339] ? __ia32_sys_read+0x80/0x80 [ 74.783185][ T4339] ? lockdep_hardirqs_on+0x94/0x140 [ 74.788751][ T4339] do_syscall_64+0x4c/0xa0 [ 74.793171][ T4339] ? clear_bhb_loop+0x30/0x80 [ 74.798018][ T4339] ? clear_bhb_loop+0x30/0x80 [ 74.802815][ T4339] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.808947][ T4339] RIP: 0033:0x7fe0f9731eb9 [ 74.813711][ T4339] 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 [ 74.834405][ T4339] RSP: 002b:00007ffdb81a5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.843437][ T4339] RAX: ffffffffffffffda RBX: 00007fe0f99acfa0 RCX: 00007fe0f9731eb9 [ 74.851859][ T4339] RDX: 0000000000000008 RSI: 00002000000000c0 RDI: 0000000000000003 [ 74.859928][ T4339] RBP: 00007fe0f979fc1f R08: 0000000000000000 R09: 0000000000000000 [ 74.868366][ T4339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.876420][ T4339] R13: 00007fe0f99acfac R14: 00007fe0f99acfa0 R15: 00007fe0f99acfa0 [ 74.884972][ T4339] [ 74.891407][ T4299] Bluetooth: hci0: command 0x040f tx timeout