Warning: Permanently added '10.128.1.147' (ED25519) to the list of known hosts. 2026/04/07 05:50:37 parsed 1 programs [ 72.732381][ T4188] cgroup: Unknown subsys name 'net' [ 72.895613][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.447281][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.915576][ T4224] chnl_net:caif_netlink_parms(): no params data found [ 76.992348][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.000520][ T4224] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.010537][ T4224] device bridge_slave_0 entered promiscuous mode [ 77.021931][ T4224] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.030469][ T4224] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.038765][ T4224] device bridge_slave_1 entered promiscuous mode [ 77.067032][ T4224] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.081936][ T4224] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.113063][ T4224] team0: Port device team_slave_0 added [ 77.121162][ T4224] team0: Port device team_slave_1 added [ 77.145959][ T4224] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.154399][ T4224] 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. [ 77.182143][ T4224] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.195606][ T4224] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.204077][ T4224] 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. [ 77.232100][ T4224] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.276259][ T4224] device hsr_slave_0 entered promiscuous mode [ 77.283359][ T4224] device hsr_slave_1 entered promiscuous mode [ 77.443542][ T4224] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.457355][ T4224] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.468276][ T4224] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.480394][ T4224] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.513913][ T4224] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.521481][ T4224] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.529689][ T4224] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.536982][ T4224] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.601299][ T4224] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.621849][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.632854][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.643082][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.657967][ T4224] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.671536][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.680658][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.687766][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.711540][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.724015][ T1265] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.731286][ T1265] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.752786][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.763535][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.783111][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.792160][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.802403][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.813983][ T4224] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.944175][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.952760][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.968069][ T4224] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.992327][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.002570][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.036189][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.044790][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.054048][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.062206][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.073863][ T4224] device veth0_vlan entered promiscuous mode [ 78.086358][ T4224] device veth1_vlan entered promiscuous mode [ 78.107371][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.115812][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.124526][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.133794][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.144707][ T4224] device veth0_macvtap entered promiscuous mode [ 78.156324][ T4224] device veth1_macvtap entered promiscuous mode [ 78.192641][ T4224] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.207202][ T4224] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.217698][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.226607][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.236444][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.252089][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.273571][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.282804][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.296710][ T4224] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.306184][ T4224] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.315835][ T4224] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.324905][ T4224] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.411878][ T1265] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.432265][ T1265] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.458433][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.495819][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.509970][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.517550][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/07 05:50:47 executed programs: 0 [ 80.786087][ T4284] chnl_net:caif_netlink_parms(): no params data found [ 80.852946][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.869296][ T4284] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.876395][ T4284] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.886346][ T4284] device bridge_slave_0 entered promiscuous mode [ 80.894659][ T4284] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.901980][ T4284] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.910632][ T4284] device bridge_slave_1 entered promiscuous mode [ 80.931256][ T4284] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.942397][ T4284] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.965297][ T4284] team0: Port device team_slave_0 added [ 80.972741][ T4284] team0: Port device team_slave_1 added [ 80.991204][ T4284] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.998334][ T4284] 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. [ 81.024742][ T4284] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.037917][ T4284] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.045006][ T4284] 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. [ 81.071712][ T4284] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.103716][ T4284] device hsr_slave_0 entered promiscuous mode [ 81.110747][ T4284] device hsr_slave_1 entered promiscuous mode [ 81.117378][ T4284] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 81.125533][ T4284] Cannot create hsr debugfs directory [ 82.739851][ T4242] Bluetooth: hci0: command 0x0409 tx timeout [ 83.246177][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.305923][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.397847][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.196135][ T4284] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 84.208542][ T4284] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 84.219045][ T4284] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 84.228370][ T4284] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.324049][ T4284] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.341464][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.350756][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.364441][ T4284] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.400912][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.410442][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.420351][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.427454][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.437414][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.450515][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.459830][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.470721][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.478885][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.518335][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.530676][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.543857][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.554872][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.592143][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.603065][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.612936][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.625878][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.637348][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.652465][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.661780][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.679116][ T4284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.815192][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.819920][ T4308] Bluetooth: hci0: command 0x041b tx timeout [ 84.825283][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.845489][ T4284] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.890658][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.900041][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.921322][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.930313][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.941456][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.949856][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.962249][ T4284] device veth0_vlan entered promiscuous mode [ 84.998398][ T4284] device veth1_vlan entered promiscuous mode [ 85.021159][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 85.031543][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.041109][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 85.053993][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.069047][ T4284] device veth0_macvtap entered promiscuous mode [ 85.105426][ T4284] device veth1_macvtap entered promiscuous mode [ 85.121102][ T4284] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 85.134388][ T4284] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 85.148168][ T4284] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.156904][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.167066][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 85.175570][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.185483][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.197123][ T4284] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 85.212426][ T4284] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 85.224462][ T4284] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.256038][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.265755][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.277447][ T4284] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.287467][ T4284] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.297531][ T4284] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.307146][ T4284] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.396374][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.407724][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.415815][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.451957][ T9] device hsr_slave_0 left promiscuous mode [ 85.458512][ T9] device hsr_slave_1 left promiscuous mode [ 85.467344][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.474985][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.483847][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.492140][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.500216][ T9] device bridge_slave_1 left promiscuous mode [ 85.507307][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.522718][ T9] device bridge_slave_0 left promiscuous mode [ 85.529182][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.548343][ T9] device veth1_macvtap left promiscuous mode [ 85.555025][ T9] device veth0_macvtap left promiscuous mode [ 85.562270][ T9] device veth1_vlan left promiscuous mode [ 85.568209][ T9] device veth0_vlan left promiscuous mode [ 85.768381][ T9] team0 (unregistering): Port device team_slave_1 removed [ 85.784973][ T9] team0 (unregistering): Port device team_slave_0 removed [ 85.804765][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.822652][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.884624][ T9] bond0 (unregistering): Released all slaves [ 85.934458][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.949233][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.957350][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 86.067667][ T4335] [ 86.070072][ T4335] ====================================================== [ 86.077281][ T4335] WARNING: possible circular locking dependency detected [ 86.084674][ T4335] syzkaller #0 Not tainted [ 86.089259][ T4335] ------------------------------------------------------ [ 86.096408][ T4335] syz.0.17/4335 is trying to acquire lock: [ 86.102329][ T4335] ffff8880257e0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 86.113581][ T4335] [ 86.113581][ T4335] but task is already holding lock: [ 86.121058][ T4335] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 86.130852][ T4335] [ 86.130852][ T4335] which lock already depends on the new lock. [ 86.130852][ T4335] [ 86.141372][ T4335] [ 86.141372][ T4335] the existing dependency chain (in reverse order) is: [ 86.150444][ T4335] [ 86.150444][ T4335] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 86.158569][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 86.164692][ T4335] mutex_lock_nested+0x17/0x20 [ 86.170201][ T4335] rfkill_register+0x33/0x8a0 [ 86.175533][ T4335] hci_register_dev+0x452/0x970 [ 86.180948][ T4335] vhci_create_device+0x32c/0x5c0 [ 86.186831][ T4335] vhci_write+0x391/0x450 [ 86.191730][ T4335] vfs_write+0x745/0xd60 [ 86.196875][ T4335] ksys_write+0x152/0x260 [ 86.202165][ T4335] do_syscall_64+0x4c/0xa0 [ 86.207143][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.213768][ T4335] [ 86.213768][ T4335] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 86.221623][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 86.227550][ T4335] mutex_lock_nested+0x17/0x20 [ 86.233105][ T4335] vhci_send_frame+0x88/0x100 [ 86.238461][ T4335] hci_send_frame+0x1a9/0x2e0 [ 86.243707][ T4335] hci_tx_work+0x9f9/0x1710 [ 86.249073][ T4335] process_one_work+0x85f/0x1010 [ 86.254586][ T4335] worker_thread+0xaa6/0x1290 [ 86.259924][ T4335] kthread+0x436/0x520 [ 86.264555][ T4335] ret_from_fork+0x1f/0x30 [ 86.269656][ T4335] [ 86.269656][ T4335] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 86.279371][ T4335] __flush_work+0x116/0x210 [ 86.284538][ T4335] hci_dev_do_close+0x1e7/0x1030 [ 86.290146][ T4335] hci_unregister_dev+0x2d7/0x580 [ 86.296007][ T4335] vhci_release+0x73/0xc0 [ 86.302152][ T4335] __fput+0x234/0x930 [ 86.306704][ T4335] task_work_run+0x125/0x1a0 [ 86.311862][ T4335] do_exit+0x626/0x20c0 [ 86.316668][ T4335] do_group_exit+0x12e/0x300 [ 86.322073][ T4335] get_signal+0x6ca/0x12c0 [ 86.327362][ T4335] arch_do_signal_or_restart+0xe7/0x12c0 [ 86.333651][ T4335] exit_to_user_mode_loop+0x9e/0x130 [ 86.339578][ T4335] exit_to_user_mode_prepare+0xee/0x180 [ 86.345970][ T4335] syscall_exit_to_user_mode+0x16/0x40 [ 86.352083][ T4335] do_syscall_64+0x58/0xa0 [ 86.357334][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.363978][ T4335] [ 86.363978][ T4335] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 86.372312][ T4335] __mutex_lock_common+0x1e3/0x2400 [ 86.378642][ T4335] mutex_lock_nested+0x17/0x20 [ 86.385288][ T4335] bg_scan_update+0x44/0x3b0 [ 86.390586][ T4335] process_one_work+0x85f/0x1010 [ 86.396209][ T4335] worker_thread+0xaa6/0x1290 [ 86.401627][ T4335] kthread+0x436/0x520 [ 86.406385][ T4335] ret_from_fork+0x1f/0x30 [ 86.411444][ T4335] [ 86.411444][ T4335] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.421490][ T4335] __lock_acquire+0x2c42/0x7d10 [ 86.426911][ T4335] lock_acquire+0x19e/0x400 [ 86.431991][ T4335] __flush_work+0x116/0x210 [ 86.437211][ T4335] __cancel_work_timer+0x3f4/0x560 [ 86.445837][ T4335] hci_request_cancel_all+0xcc/0x300 [ 86.452136][ T4335] hci_dev_do_close+0x4e/0x1030 [ 86.457561][ T4335] hci_rfkill_set_block+0x10a/0x190 [ 86.463751][ T4335] rfkill_set_block+0x1c6/0x420 [ 86.469403][ T4335] rfkill_fop_write+0x452/0x560 [ 86.474929][ T4335] do_iter_write+0x3e4/0x7b0 [ 86.480954][ T4335] do_writev+0x281/0x480 [ 86.485959][ T4335] do_syscall_64+0x4c/0xa0 [ 86.491648][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.498239][ T4335] [ 86.498239][ T4335] other info that might help us debug this: [ 86.498239][ T4335] [ 86.508692][ T4335] Chain exists of: [ 86.508692][ T4335] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.508692][ T4335] [ 86.525411][ T4335] Possible unsafe locking scenario: [ 86.525411][ T4335] [ 86.533059][ T4335] CPU0 CPU1 [ 86.538580][ T4335] ---- ---- [ 86.543956][ T4335] lock(rfkill_global_mutex); [ 86.548862][ T4335] lock(&data->open_mutex); [ 86.556460][ T4335] lock(rfkill_global_mutex); [ 86.565007][ T4335] lock((work_completion)(&hdev->bg_scan_update)); [ 86.571772][ T4335] [ 86.571772][ T4335] *** DEADLOCK *** [ 86.571772][ T4335] [ 86.580769][ T4335] 1 lock held by syz.0.17/4335: [ 86.585683][ T4335] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 86.595934][ T4335] [ 86.595934][ T4335] stack backtrace: [ 86.602156][ T4335] CPU: 0 PID: 4335 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.609487][ T4335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.619896][ T4335] Call Trace: [ 86.623364][ T4335] [ 86.626466][ T4335] dump_stack_lvl+0x188/0x250 [ 86.631377][ T4335] ? load_image+0x400/0x400 [ 86.636018][ T4335] ? show_regs_print_info+0x20/0x20 [ 86.641768][ T4335] ? print_circular_bug+0x12b/0x1a0 [ 86.647054][ T4335] check_noncircular+0x296/0x330 [ 86.652346][ T4335] ? look_up_lock_class+0x71/0x110 [ 86.657802][ T4335] ? add_chain_block+0x940/0x940 [ 86.662871][ T4335] ? lockdep_lock+0xf1/0x1f0 [ 86.667535][ T4335] ? __lock_acquire+0x12e8/0x7d10 [ 86.672703][ T4335] ? mark_lock+0x94/0x320 [ 86.677086][ T4335] __lock_acquire+0x2c42/0x7d10 [ 86.682185][ T4335] ? verify_lock_unused+0x140/0x140 [ 86.687952][ T4335] ? verify_lock_unused+0x140/0x140 [ 86.693208][ T4335] ? mark_lock+0x94/0x320 [ 86.699087][ T4335] lock_acquire+0x19e/0x400 [ 86.703686][ T4335] ? __flush_work+0xfa/0x210 [ 86.708682][ T4335] ? __lock_acquire+0x7d10/0x7d10 [ 86.714586][ T4335] ? read_lock_is_recursive+0x10/0x10 [ 86.720312][ T4335] ? start_flush_work+0x776/0x820 [ 86.725519][ T4335] __flush_work+0x116/0x210 [ 86.730354][ T4335] ? __flush_work+0xfa/0x210 [ 86.734999][ T4335] ? flush_work+0x20/0x20 [ 86.739589][ T4335] ? try_to_grab_pending+0xfa/0x7f0 [ 86.744839][ T4335] ? mark_lock+0x94/0x320 [ 86.749294][ T4335] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 86.755485][ T4335] ? lock_chain_count+0x20/0x20 [ 86.761027][ T4335] ? mark_lock+0x94/0x320 [ 86.765583][ T4335] ? __cancel_work_timer+0x36a/0x560 [ 86.771201][ T4335] __cancel_work_timer+0x3f4/0x560 [ 86.776904][ T4335] ? cancel_work_sync+0x20/0x20 [ 86.782546][ T4335] ? __cancel_work+0x1f9/0x2e0 [ 86.787788][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 86.795441][ T4335] ? __cancel_work+0x27b/0x2e0 [ 86.800529][ T4335] ? cancel_work+0x20/0x20 [ 86.805617][ T4335] ? lock_chain_count+0x20/0x20 [ 86.810519][ T4335] hci_request_cancel_all+0xcc/0x300 [ 86.816123][ T4335] hci_dev_do_close+0x4e/0x1030 [ 86.821198][ T4335] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 86.827463][ T4335] ? _raw_spin_unlock+0x40/0x40 [ 86.832514][ T4335] hci_rfkill_set_block+0x10a/0x190 [ 86.837810][ T4335] ? rcu_lock_release+0x20/0x20 [ 86.842793][ T4335] rfkill_set_block+0x1c6/0x420 [ 86.847886][ T4335] rfkill_fop_write+0x452/0x560 [ 86.853183][ T4335] ? _copy_from_user+0x111/0x170 [ 86.858604][ T4335] ? rfkill_fop_read+0x4d0/0x4d0 [ 86.863765][ T4335] ? common_file_perm+0x171/0x1c0 [ 86.868835][ T4335] ? fsnotify_perm+0x5d/0x560 [ 86.873645][ T4335] ? security_file_permission+0x75/0xa0 [ 86.879323][ T4335] do_iter_write+0x3e4/0x7b0 [ 86.884270][ T4335] do_writev+0x281/0x480 [ 86.889633][ T4335] ? do_readv+0x460/0x460 [ 86.895121][ T4335] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 86.901160][ T4335] ? lock_chain_count+0x20/0x20 [ 86.906060][ T4335] ? vtime_user_exit+0x2c8/0x3e0 [ 86.911039][ T4335] ? lockdep_hardirqs_on+0x94/0x140 [ 86.916410][ T4335] do_syscall_64+0x4c/0xa0 [ 86.920860][ T4335] ? clear_bhb_loop+0x30/0x80 [ 86.925572][ T4335] ? clear_bhb_loop+0x30/0x80 [ 86.930456][ T4335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.932128][ T23] cfg80211: failed to load regulatory.db [ 86.936388][ T4335] RIP: 0033:0x7fd0c63fe819 [ 86.948109][ T4335] 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 [ 86.971468][ T4335] RSP: 002b:00007ffede11a3c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 86.980578][ T4335] RAX: ffffffffffffffda RBX: 00007fd0c6677fa0 RCX: 00007fd0c63fe819 [ 86.991589][ T4335] RDX: 0000000000000001 RSI: 0000200000001280 RDI: 0000000000000003 [ 87.001078][ T4335] RBP: 00007fd0c6494c91 R08: 0000000000000000 R09: 0000000000000000 [ 87.009407][ T4335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.017491][ T4335] R13: 00007fd0c6677fac R14: 00007fd0c6677fa0 R15: 00007fd0c6677fa0 [ 87.025983][ T4335] [ 87.040789][ T4237] Bluetooth: hci0: command 0x040f tx timeout