Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts. 2026/05/03 01:55:02 parsed 1 programs [ 69.136672][ T4200] cgroup: Unknown subsys name 'net' [ 69.242696][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.712974][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.347750][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.354314][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.286540][ T4243] chnl_net:caif_netlink_parms(): no params data found [ 73.352326][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.361261][ T4243] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.369520][ T4243] device bridge_slave_0 entered promiscuous mode [ 73.380267][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.387571][ T4243] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.396829][ T4243] device bridge_slave_1 entered promiscuous mode [ 73.424156][ T4243] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.437388][ T4243] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.466243][ T4243] team0: Port device team_slave_0 added [ 73.475765][ T4243] team0: Port device team_slave_1 added [ 73.499224][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.506458][ T4243] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.533721][ T4243] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.546820][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.555072][ T4243] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 73.582140][ T4243] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.622805][ T4243] device hsr_slave_0 entered promiscuous mode [ 73.629966][ T4243] device hsr_slave_1 entered promiscuous mode [ 73.767446][ T4243] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.779619][ T4243] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.789870][ T4243] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.800627][ T4243] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.829474][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.836822][ T4243] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.844798][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.851912][ T4243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.910268][ T4243] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.927065][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.937841][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.947682][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.965749][ T4243] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.977796][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.987468][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.994735][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.017042][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.026370][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.033510][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.061043][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.070532][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.079097][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.087807][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.096253][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.107744][ T4243] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.229609][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.242441][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.259772][ T4243] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.285739][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.295287][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.312728][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.321421][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.330896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.338894][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.349680][ T4243] device veth0_vlan entered promiscuous mode [ 74.361424][ T4243] device veth1_vlan entered promiscuous mode [ 74.381085][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.390075][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.399865][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.408763][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.419882][ T4243] device veth0_macvtap entered promiscuous mode [ 74.439582][ T4243] device veth1_macvtap entered promiscuous mode [ 74.456752][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.465033][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.473501][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.481465][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.491250][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.513699][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.521150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.530233][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.541559][ T4243] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.550832][ T4243] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.560070][ T4243] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.569097][ T4243] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.175024][ T155] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.192831][ T155] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.213336][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.231377][ T4274] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.240238][ T4274] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.249287][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/03 01:55:12 executed programs: 0 [ 76.473438][ T4294] chnl_net:caif_netlink_parms(): no params data found [ 76.515103][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.549137][ T4294] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.556573][ T4294] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.566011][ T4294] device bridge_slave_0 entered promiscuous mode [ 76.574296][ T4294] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.581364][ T4294] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.589877][ T4294] device bridge_slave_1 entered promiscuous mode [ 76.609975][ T4294] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.621219][ T4294] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.642971][ T4294] team0: Port device team_slave_0 added [ 76.651481][ T4294] team0: Port device team_slave_1 added [ 76.668621][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.675816][ T4294] 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. [ 76.701836][ T4294] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.715085][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.722066][ T4294] 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. [ 76.748421][ T4294] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.778006][ T4294] device hsr_slave_0 entered promiscuous mode [ 76.784973][ T4294] device hsr_slave_1 entered promiscuous mode [ 76.791756][ T4294] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.799931][ T4294] Cannot create hsr debugfs directory [ 78.383888][ T4257] Bluetooth: hci0: command 0x0409 tx timeout [ 79.530947][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.588726][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.669805][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.461748][ T4294] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.469885][ T23] Bluetooth: hci0: command 0x041b tx timeout [ 80.480506][ T4294] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.491481][ T4294] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.520718][ T4294] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.591796][ T4294] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.630010][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.638116][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.649337][ T4294] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.659919][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.669331][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.679789][ T4274] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.686886][ T4274] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.708343][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.716661][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.726716][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.735698][ T4274] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.742763][ T4274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.751060][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.761858][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.790370][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.800554][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.809740][ T4249] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.821276][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.831575][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.847505][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.856137][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.865384][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.874155][ T4274] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.906395][ T4294] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.035827][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.043560][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.056625][ T4294] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.090411][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.099552][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.119958][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.128651][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.137658][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.146749][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.157730][ T4294] device veth0_vlan entered promiscuous mode [ 81.185545][ T4294] device veth1_vlan entered promiscuous mode [ 81.204502][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.212711][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.221242][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.230065][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.240782][ T4294] device veth0_macvtap entered promiscuous mode [ 81.253813][ T4294] device veth1_macvtap entered promiscuous mode [ 81.278052][ T4294] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 81.289854][ T4294] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 81.301951][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.309787][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.318940][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.327385][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.336448][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.356813][ T4294] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 81.367484][ T4294] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 81.378767][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.388780][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.397897][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.407663][ T4294] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.416951][ T4294] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.426276][ T4294] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.435369][ T4294] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.467739][ T154] device hsr_slave_0 left promiscuous mode [ 81.475378][ T154] device hsr_slave_1 left promiscuous mode [ 81.481886][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.490760][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.499804][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.508237][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.516244][ T154] device bridge_slave_1 left promiscuous mode [ 81.523436][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.538536][ T154] device bridge_slave_0 left promiscuous mode [ 81.545608][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.562582][ T154] device veth1_macvtap left promiscuous mode [ 81.569744][ T154] device veth0_macvtap left promiscuous mode [ 81.576005][ T154] device veth1_vlan left promiscuous mode [ 81.581946][ T154] device veth0_vlan left promiscuous mode [ 81.868838][ T154] team0 (unregistering): Port device team_slave_1 removed [ 81.890415][ T154] team0 (unregistering): Port device team_slave_0 removed [ 81.913450][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.930539][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.014368][ T154] bond0 (unregistering): Released all slaves [ 82.125729][ T4249] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.139971][ T4249] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.163762][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.185309][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.193255][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.201267][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.325655][ T4349] [ 82.328054][ T4349] ====================================================== [ 82.335095][ T4349] WARNING: possible circular locking dependency detected [ 82.342151][ T4349] syzkaller #0 Not tainted [ 82.346585][ T4349] ------------------------------------------------------ [ 82.353616][ T4349] syz.0.17/4349 is trying to acquire lock: [ 82.359434][ T4349] ffff88807630cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.370577][ T4349] [ 82.370577][ T4349] but task is already holding lock: [ 82.377963][ T4349] ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.387656][ T4349] [ 82.387656][ T4349] which lock already depends on the new lock. [ 82.387656][ T4349] [ 82.398078][ T4349] [ 82.398078][ T4349] the existing dependency chain (in reverse order) is: [ 82.407195][ T4349] [ 82.407195][ T4349] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.415221][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 82.420975][ T4349] mutex_lock_nested+0x17/0x20 [ 82.426280][ T4349] rfkill_register+0x33/0x980 [ 82.431507][ T4349] hci_register_dev+0x452/0x970 [ 82.436988][ T4349] vhci_create_device+0x32c/0x5c0 [ 82.442553][ T4349] vhci_write+0x391/0x450 [ 82.447445][ T4349] vfs_write+0x745/0xd60 [ 82.452229][ T4349] ksys_write+0x152/0x260 [ 82.457105][ T4349] do_syscall_64+0x4c/0xa0 [ 82.462108][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.468556][ T4349] [ 82.468556][ T4349] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.476509][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 82.482271][ T4349] mutex_lock_nested+0x17/0x20 [ 82.487586][ T4349] vhci_send_frame+0x88/0x100 [ 82.492812][ T4349] hci_send_frame+0x1a9/0x2e0 [ 82.498038][ T4349] hci_tx_work+0x9f9/0x1710 [ 82.503089][ T4349] process_one_work+0x85f/0x1010 [ 82.508566][ T4349] worker_thread+0xaa6/0x1290 [ 82.513820][ T4349] kthread+0x436/0x520 [ 82.518436][ T4349] ret_from_fork+0x1f/0x30 [ 82.523394][ T4349] [ 82.523394][ T4349] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.532625][ T4349] __flush_work+0x116/0x210 [ 82.537722][ T4349] hci_dev_do_close+0x1e7/0x1030 [ 82.543214][ T4349] hci_unregister_dev+0x2d7/0x580 [ 82.548821][ T4349] vhci_release+0x73/0xc0 [ 82.553697][ T4349] __fput+0x234/0x930 [ 82.558219][ T4349] task_work_run+0x125/0x1a0 [ 82.563371][ T4349] do_exit+0x626/0x20c0 [ 82.568065][ T4349] do_group_exit+0x12e/0x300 [ 82.573200][ T4349] get_signal+0x6ca/0x12c0 [ 82.578194][ T4349] arch_do_signal_or_restart+0xe7/0x12c0 [ 82.584498][ T4349] exit_to_user_mode_loop+0x9e/0x130 [ 82.590330][ T4349] exit_to_user_mode_prepare+0xee/0x180 [ 82.596503][ T4349] syscall_exit_to_user_mode+0x16/0x40 [ 82.602509][ T4349] do_syscall_64+0x58/0xa0 [ 82.607478][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.613932][ T4349] [ 82.613932][ T4349] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.621604][ T4349] __mutex_lock_common+0x1e3/0x2400 [ 82.627454][ T4349] mutex_lock_nested+0x17/0x20 [ 82.632779][ T4349] bg_scan_update+0x44/0x3b0 [ 82.637923][ T4349] process_one_work+0x85f/0x1010 [ 82.643410][ T4349] worker_thread+0xaa6/0x1290 [ 82.648635][ T4349] kthread+0x436/0x520 [ 82.653292][ T4349] ret_from_fork+0x1f/0x30 [ 82.658247][ T4349] [ 82.658247][ T4349] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.668087][ T4349] __lock_acquire+0x2c42/0x7d10 [ 82.673486][ T4349] lock_acquire+0x19e/0x400 [ 82.678550][ T4349] __flush_work+0x116/0x210 [ 82.683637][ T4349] __cancel_work_timer+0x3f4/0x560 [ 82.689291][ T4349] hci_request_cancel_all+0xcc/0x300 [ 82.695128][ T4349] hci_dev_do_close+0x4e/0x1030 [ 82.700524][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 82.706264][ T4349] rfkill_set_block+0x1c9/0x3d0 [ 82.711666][ T4349] rfkill_fop_write+0x452/0x560 [ 82.717066][ T4349] vfs_write+0x30b/0xd60 [ 82.721858][ T4349] ksys_write+0x152/0x260 [ 82.726734][ T4349] do_syscall_64+0x4c/0xa0 [ 82.731685][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.738121][ T4349] [ 82.738121][ T4349] other info that might help us debug this: [ 82.738121][ T4349] [ 82.748363][ T4349] Chain exists of: [ 82.748363][ T4349] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.748363][ T4349] [ 82.764216][ T4349] Possible unsafe locking scenario: [ 82.764216][ T4349] [ 82.771694][ T4349] CPU0 CPU1 [ 82.777084][ T4349] ---- ---- [ 82.782465][ T4349] lock(rfkill_global_mutex); [ 82.787283][ T4349] lock(&data->open_mutex); [ 82.794416][ T4349] lock(rfkill_global_mutex); [ 82.801735][ T4349] lock((work_completion)(&hdev->bg_scan_update)); [ 82.808354][ T4349] [ 82.808354][ T4349] *** DEADLOCK *** [ 82.808354][ T4349] [ 82.816616][ T4349] 1 lock held by syz.0.17/4349: [ 82.821505][ T4349] #0: ffffffff8d6c5da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.831633][ T4349] [ 82.831633][ T4349] stack backtrace: [ 82.837559][ T4349] CPU: 1 PID: 4349 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.844790][ T4349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.854888][ T4349] Call Trace: [ 82.858233][ T4349] [ 82.861179][ T4349] dump_stack_lvl+0x188/0x250 [ 82.865878][ T4349] ? load_image+0x400/0x400 [ 82.870414][ T4349] ? show_regs_print_info+0x20/0x20 [ 82.875643][ T4349] ? print_circular_bug+0x12b/0x1a0 [ 82.880887][ T4349] check_noncircular+0x296/0x330 [ 82.885855][ T4349] ? look_up_lock_class+0x71/0x110 [ 82.891027][ T4349] ? add_chain_block+0x940/0x940 [ 82.895994][ T4349] ? lockdep_lock+0xf1/0x1f0 [ 82.900610][ T4349] ? __lock_acquire+0x12e8/0x7d10 [ 82.905661][ T4349] ? mark_lock+0x94/0x320 [ 82.910022][ T4349] __lock_acquire+0x2c42/0x7d10 [ 82.914912][ T4349] ? verify_lock_unused+0x140/0x140 [ 82.920142][ T4349] ? verify_lock_unused+0x140/0x140 [ 82.925377][ T4349] ? mark_lock+0x94/0x320 [ 82.929759][ T4349] lock_acquire+0x19e/0x400 [ 82.934303][ T4349] ? __flush_work+0xfa/0x210 [ 82.938927][ T4349] ? __lock_acquire+0x7d10/0x7d10 [ 82.943981][ T4349] ? read_lock_is_recursive+0x10/0x10 [ 82.949381][ T4349] ? start_flush_work+0x776/0x820 [ 82.954435][ T4349] __flush_work+0x116/0x210 [ 82.958983][ T4349] ? __flush_work+0xfa/0x210 [ 82.963599][ T4349] ? flush_work+0x20/0x20 [ 82.967951][ T4349] ? try_to_grab_pending+0xfa/0x7f0 [ 82.973178][ T4349] ? mark_lock+0x94/0x320 [ 82.977569][ T4349] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 82.983586][ T4349] ? lock_chain_count+0x20/0x20 [ 82.988466][ T4349] ? mark_lock+0x94/0x320 [ 82.992824][ T4349] ? __cancel_work_timer+0x36a/0x560 [ 82.998143][ T4349] __cancel_work_timer+0x3f4/0x560 [ 83.003286][ T4349] ? cancel_work_sync+0x20/0x20 [ 83.008161][ T4349] ? __cancel_work+0x1f9/0x2e0 [ 83.012951][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 83.018190][ T4349] ? __cancel_work+0x27b/0x2e0 [ 83.023006][ T4349] ? cancel_work+0x20/0x20 [ 83.027468][ T4349] ? lock_chain_count+0x20/0x20 [ 83.032353][ T4349] hci_request_cancel_all+0xcc/0x300 [ 83.037679][ T4349] hci_dev_do_close+0x4e/0x1030 [ 83.042571][ T4349] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.048500][ T4349] ? _raw_spin_unlock+0x40/0x40 [ 83.053475][ T4349] hci_rfkill_set_block+0x10a/0x190 [ 83.058719][ T4349] ? rcu_lock_release+0x20/0x20 [ 83.063606][ T4349] rfkill_set_block+0x1c9/0x3d0 [ 83.068508][ T4349] rfkill_fop_write+0x452/0x560 [ 83.073384][ T4349] ? rfkill_fop_read+0x520/0x520 [ 83.078443][ T4349] ? common_file_perm+0x140/0x1c0 [ 83.083500][ T4349] ? fsnotify_perm+0x5d/0x560 [ 83.088207][ T4349] ? security_file_permission+0x75/0xa0 [ 83.093790][ T4349] ? rfkill_fop_read+0x520/0x520 [ 83.098760][ T4349] vfs_write+0x30b/0xd60 [ 83.103029][ T4349] ? file_end_write+0x250/0x250 [ 83.107908][ T4349] ? __context_tracking_exit+0x4c/0x80 [ 83.113392][ T4349] ? __lock_acquire+0x7d10/0x7d10 [ 83.118451][ T4349] ? __fdget_pos+0x1e2/0x370 [ 83.123088][ T4349] ksys_write+0x152/0x260 [ 83.127443][ T4349] ? __ia32_sys_read+0x80/0x80 [ 83.132231][ T4349] ? lockdep_hardirqs_on+0x94/0x140 [ 83.137451][ T4349] do_syscall_64+0x4c/0xa0 [ 83.141896][ T4349] ? clear_bhb_loop+0x30/0x80 [ 83.146591][ T4349] ? clear_bhb_loop+0x30/0x80 [ 83.151301][ T4349] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.157241][ T4349] RIP: 0033:0x7f4286538dd9 [ 83.161691][ 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 [ 83.181347][ T4349] RSP: 002b:00007fffb5952768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.189798][ T4349] RAX: ffffffffffffffda RBX: 00007f42867b1fa0 RCX: 00007f4286538dd9 [ 83.197805][ T4349] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 83.205813][ T4349] RBP: 00007f42865ced69 R08: 0000000000000000 R09: 0000000000000000 [ 83.213819][ T4349] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.221816][ T4349] R13: 00007f42867b1fac R14: 00007f42867b1fa0 R15: 00007f42867b1fa0 [ 83.229827][ T4349] [ 83.245429][ T4322] Bluetooth: hci0: command 0x040f tx timeout