Warning: Permanently added '10.128.1.46' (ED25519) to the list of known hosts. 2026/04/04 09:03:24 parsed 1 programs [ 59.724584][ T4189] cgroup: Unknown subsys name 'net' [ 59.857605][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 61.447885][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 64.293561][ T4236] chnl_net:caif_netlink_parms(): no params data found [ 64.366726][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.374451][ T4236] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.384370][ T4236] device bridge_slave_0 entered promiscuous mode [ 64.394314][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.401444][ T4236] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.410962][ T4236] device bridge_slave_1 entered promiscuous mode [ 64.437966][ T4236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.449536][ T4236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.477692][ T4236] team0: Port device team_slave_0 added [ 64.486253][ T4236] team0: Port device team_slave_1 added [ 64.508820][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.516127][ T4236] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 64.542520][ T4236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.556740][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.563963][ T4236] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 64.590161][ T4236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.629926][ T4236] device hsr_slave_0 entered promiscuous mode [ 64.637185][ T4236] device hsr_slave_1 entered promiscuous mode [ 64.769231][ T4236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.781192][ T4236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.793673][ T4236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.805425][ T4236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.838573][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.845894][ T4236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.854014][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.861067][ T4236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.909072][ T4236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.922864][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.934378][ T145] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.943619][ T145] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.957422][ T4236] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.971703][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.990273][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.997519][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.036001][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.049611][ T145] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.056744][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.076446][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.086541][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.104376][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.130090][ T1320] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.138962][ T1320] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.155821][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.250982][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.258547][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.270710][ T4236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.293232][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.303261][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.319242][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.328633][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.337430][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.346454][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.358205][ T4236] device veth0_vlan entered promiscuous mode [ 65.372936][ T4236] device veth1_vlan entered promiscuous mode [ 65.391646][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.400274][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.408828][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.418306][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.429046][ T4236] device veth0_macvtap entered promiscuous mode [ 65.439761][ T4236] device veth1_macvtap entered promiscuous mode [ 65.454522][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.479387][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.488299][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.496569][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.506215][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.519630][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.528975][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.537844][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.561729][ T4236] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.570770][ T4236] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.580251][ T4236] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.589210][ T4236] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.120848][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.129070][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.139715][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.164726][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.172928][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.202019][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/04 09:03:33 executed programs: 0 [ 67.551496][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 67.618670][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.628604][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.637023][ T4290] device bridge_slave_0 entered promiscuous mode [ 67.645888][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.653365][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.661795][ T4290] device bridge_slave_1 entered promiscuous mode [ 67.683490][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.695314][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.719401][ T4290] team0: Port device team_slave_0 added [ 67.727792][ T4290] team0: Port device team_slave_1 added [ 67.746694][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.754374][ T4290] 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. [ 67.780629][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.793166][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.800171][ T4290] 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. [ 67.827504][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.858969][ T4290] device hsr_slave_0 entered promiscuous mode [ 67.866140][ T4290] device hsr_slave_1 entered promiscuous mode [ 67.873068][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.880937][ T4290] Cannot create hsr debugfs directory [ 67.972898][ T4290] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.442804][ T4305] Bluetooth: hci0: command 0x0409 tx timeout [ 70.979094][ T4290] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.037854][ T4290] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.088838][ T4290] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.295037][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.305492][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.314332][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.323590][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.355152][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.362103][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.400098][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.430698][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.440134][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.451252][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.474665][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.483457][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.491814][ T145] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.499082][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.509121][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.517102][ T4256] Bluetooth: hci0: command 0x041b tx timeout [ 71.525035][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.534344][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.544494][ T145] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.551605][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.559865][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.571406][ T1320] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.599138][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.610343][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.619589][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.633533][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.642927][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.664498][ T4290] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.675953][ T4290] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.688877][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.697763][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.707599][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.716880][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.725908][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.800724][ T155] device hsr_slave_0 left promiscuous mode [ 71.810277][ T155] device hsr_slave_1 left promiscuous mode [ 71.819106][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.830279][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.839303][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.846930][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.854659][ T155] device bridge_slave_1 left promiscuous mode [ 71.861560][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.874480][ T155] device bridge_slave_0 left promiscuous mode [ 71.881023][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.897677][ T155] device veth1_macvtap left promiscuous mode [ 71.904661][ T155] device veth0_macvtap left promiscuous mode [ 71.910718][ T155] device veth1_vlan left promiscuous mode [ 71.917484][ T155] device veth0_vlan left promiscuous mode [ 72.065141][ T155] team0 (unregistering): Port device team_slave_1 removed [ 72.077217][ T155] team0 (unregistering): Port device team_slave_0 removed [ 72.093922][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.107900][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.160290][ T155] bond0 (unregistering): Released all slaves [ 72.214988][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.222736][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.234942][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.254264][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.263382][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.289163][ T4290] device veth0_vlan entered promiscuous mode [ 72.303028][ T4290] device veth1_vlan entered promiscuous mode [ 72.310416][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.320915][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.330505][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.339713][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.349172][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.382497][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.390687][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.399820][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.410092][ T4290] device veth0_macvtap entered promiscuous mode [ 72.419568][ T4290] device veth1_macvtap entered promiscuous mode [ 72.437254][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.449011][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.459255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.467855][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.477536][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.486645][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.495610][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.504792][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.517264][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.526264][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.535395][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.544372][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.605778][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.619510][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.645168][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.662070][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.670024][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.680730][ T4309] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 72.791695][ T4314] [ 72.794075][ T4314] ====================================================== [ 72.801199][ T4314] WARNING: possible circular locking dependency detected [ 72.808234][ T4314] syzkaller #0 Not tainted [ 72.812668][ T4314] ------------------------------------------------------ [ 72.820042][ T4314] syz.0.17/4314 is trying to acquire lock: [ 72.825875][ T4314] ffff8880241b0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 72.836970][ T4314] [ 72.836970][ T4314] but task is already holding lock: [ 72.844565][ T4314] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 72.854498][ T4314] [ 72.854498][ T4314] which lock already depends on the new lock. [ 72.854498][ T4314] [ 72.864912][ T4314] [ 72.864912][ T4314] the existing dependency chain (in reverse order) is: [ 72.874202][ T4314] [ 72.874202][ T4314] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 72.882345][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 72.888394][ T4314] mutex_lock_nested+0x17/0x20 [ 72.893792][ T4314] rfkill_register+0x33/0x8a0 [ 72.899030][ T4314] hci_register_dev+0x452/0x970 [ 72.904505][ T4314] vhci_create_device+0x32c/0x5c0 [ 72.910069][ T4314] vhci_write+0x391/0x450 [ 72.914932][ T4314] vfs_write+0x745/0xd60 [ 72.919722][ T4314] ksys_write+0x152/0x260 [ 72.924599][ T4314] do_syscall_64+0x4c/0xa0 [ 72.929711][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 72.936152][ T4314] [ 72.936152][ T4314] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 72.944139][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 72.949883][ T4314] mutex_lock_nested+0x17/0x20 [ 72.955197][ T4314] vhci_send_frame+0x88/0x100 [ 72.960509][ T4314] hci_send_frame+0x1a9/0x2e0 [ 72.965748][ T4314] hci_tx_work+0x9f9/0x1710 [ 72.970843][ T4314] process_one_work+0x85f/0x1010 [ 72.976423][ T4314] worker_thread+0xaa6/0x1290 [ 72.981642][ T4314] kthread+0x436/0x520 [ 72.986247][ T4314] ret_from_fork+0x1f/0x30 [ 72.991296][ T4314] [ 72.991296][ T4314] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 73.000604][ T4314] __flush_work+0x116/0x210 [ 73.005647][ T4314] hci_dev_do_close+0x1e7/0x1030 [ 73.011297][ T4314] hci_unregister_dev+0x2d7/0x580 [ 73.016963][ T4314] vhci_release+0x73/0xc0 [ 73.022017][ T4314] __fput+0x234/0x930 [ 73.026540][ T4314] task_work_run+0x125/0x1a0 [ 73.031668][ T4314] do_exit+0x626/0x20c0 [ 73.036350][ T4314] do_group_exit+0x12e/0x300 [ 73.041481][ T4314] get_signal+0x6ca/0x12c0 [ 73.046463][ T4314] arch_do_signal_or_restart+0xe7/0x12c0 [ 73.052726][ T4314] exit_to_user_mode_loop+0x9e/0x130 [ 73.058554][ T4314] exit_to_user_mode_prepare+0xee/0x180 [ 73.064728][ T4314] syscall_exit_to_user_mode+0x16/0x40 [ 73.070734][ T4314] do_syscall_64+0x58/0xa0 [ 73.075686][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.082193][ T4314] [ 73.082193][ T4314] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 73.089934][ T4314] __mutex_lock_common+0x1e3/0x2400 [ 73.095743][ T4314] mutex_lock_nested+0x17/0x20 [ 73.101119][ T4314] bg_scan_update+0x44/0x3b0 [ 73.106319][ T4314] process_one_work+0x85f/0x1010 [ 73.111779][ T4314] worker_thread+0xaa6/0x1290 [ 73.116996][ T4314] kthread+0x436/0x520 [ 73.121594][ T4314] ret_from_fork+0x1f/0x30 [ 73.126715][ T4314] [ 73.126715][ T4314] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 73.136636][ T4314] __lock_acquire+0x2c42/0x7d10 [ 73.142029][ T4314] lock_acquire+0x19e/0x400 [ 73.147060][ T4314] __flush_work+0x116/0x210 [ 73.152195][ T4314] __cancel_work_timer+0x3f4/0x560 [ 73.157831][ T4314] hci_request_cancel_all+0xcc/0x300 [ 73.163840][ T4314] hci_dev_do_close+0x4e/0x1030 [ 73.169218][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 73.174945][ T4314] rfkill_set_block+0x1c6/0x420 [ 73.180337][ T4314] rfkill_fop_write+0x452/0x560 [ 73.185737][ T4314] do_iter_write+0x3e4/0x7b0 [ 73.190850][ T4314] do_writev+0x281/0x480 [ 73.195823][ T4314] do_syscall_64+0x4c/0xa0 [ 73.200758][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.207170][ T4314] [ 73.207170][ T4314] other info that might help us debug this: [ 73.207170][ T4314] [ 73.217482][ T4314] Chain exists of: [ 73.217482][ T4314] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 73.217482][ T4314] [ 73.233388][ T4314] Possible unsafe locking scenario: [ 73.233388][ T4314] [ 73.240833][ T4314] CPU0 CPU1 [ 73.246290][ T4314] ---- ---- [ 73.251737][ T4314] lock(rfkill_global_mutex); [ 73.256499][ T4314] lock(&data->open_mutex); [ 73.263691][ T4314] lock(rfkill_global_mutex); [ 73.271015][ T4314] lock((work_completion)(&hdev->bg_scan_update)); [ 73.277642][ T4314] [ 73.277642][ T4314] *** DEADLOCK *** [ 73.277642][ T4314] [ 73.285889][ T4314] 1 lock held by syz.0.17/4314: [ 73.290829][ T4314] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 73.300937][ T4314] [ 73.300937][ T4314] stack backtrace: [ 73.306975][ T4314] CPU: 1 PID: 4314 Comm: syz.0.17 Not tainted syzkaller #0 [ 73.314187][ T4314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 73.324332][ T4314] Call Trace: [ 73.327610][ T4314] [ 73.330536][ T4314] dump_stack_lvl+0x188/0x250 [ 73.335255][ T4314] ? load_image+0x400/0x400 [ 73.339763][ T4314] ? show_regs_print_info+0x20/0x20 [ 73.345024][ T4314] ? print_circular_bug+0x12b/0x1a0 [ 73.350242][ T4314] check_noncircular+0x296/0x330 [ 73.355195][ T4314] ? look_up_lock_class+0x71/0x110 [ 73.360317][ T4314] ? add_chain_block+0x940/0x940 [ 73.365252][ T4314] ? lockdep_lock+0xf1/0x1f0 [ 73.369842][ T4314] ? __lock_acquire+0x12e8/0x7d10 [ 73.374864][ T4314] ? mark_lock+0x94/0x320 [ 73.379190][ T4314] __lock_acquire+0x2c42/0x7d10 [ 73.384046][ T4314] ? verify_lock_unused+0x140/0x140 [ 73.389243][ T4314] ? verify_lock_unused+0x140/0x140 [ 73.394525][ T4314] ? mark_lock+0x94/0x320 [ 73.398974][ T4314] lock_acquire+0x19e/0x400 [ 73.403570][ T4314] ? __flush_work+0xfa/0x210 [ 73.408162][ T4314] ? __lock_acquire+0x7d10/0x7d10 [ 73.413272][ T4314] ? read_lock_is_recursive+0x10/0x10 [ 73.418646][ T4314] ? start_flush_work+0x776/0x820 [ 73.423695][ T4314] __flush_work+0x116/0x210 [ 73.428251][ T4314] ? __flush_work+0xfa/0x210 [ 73.432852][ T4314] ? flush_work+0x20/0x20 [ 73.437176][ T4314] ? try_to_grab_pending+0xfa/0x7f0 [ 73.442470][ T4314] ? mark_lock+0x94/0x320 [ 73.446906][ T4314] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 73.452897][ T4314] ? lock_chain_count+0x20/0x20 [ 73.457845][ T4314] ? mark_lock+0x94/0x320 [ 73.462185][ T4314] ? __cancel_work_timer+0x36a/0x560 [ 73.467475][ T4314] __cancel_work_timer+0x3f4/0x560 [ 73.472673][ T4314] ? cancel_work_sync+0x20/0x20 [ 73.477697][ T4314] ? __cancel_work+0x1f9/0x2e0 [ 73.482490][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 73.487695][ T4314] ? __cancel_work+0x27b/0x2e0 [ 73.492475][ T4314] ? cancel_work+0x20/0x20 [ 73.496898][ T4314] ? lock_chain_count+0x20/0x20 [ 73.501856][ T4314] hci_request_cancel_all+0xcc/0x300 [ 73.507234][ T4314] hci_dev_do_close+0x4e/0x1030 [ 73.512088][ T4314] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 73.518073][ T4314] ? _raw_spin_unlock+0x40/0x40 [ 73.522930][ T4314] hci_rfkill_set_block+0x10a/0x190 [ 73.528225][ T4314] ? rcu_lock_release+0x20/0x20 [ 73.533075][ T4314] rfkill_set_block+0x1c6/0x420 [ 73.538893][ T4314] rfkill_fop_write+0x452/0x560 [ 73.543926][ T4314] ? _copy_from_user+0x111/0x170 [ 73.549056][ T4314] ? rfkill_fop_read+0x4d0/0x4d0 [ 73.554007][ T4314] ? common_file_perm+0x171/0x1c0 [ 73.559043][ T4314] ? fsnotify_perm+0x5d/0x560 [ 73.563811][ T4314] ? security_file_permission+0x75/0xa0 [ 73.569385][ T4314] do_iter_write+0x3e4/0x7b0 [ 73.574174][ T4314] do_writev+0x281/0x480 [ 73.578636][ T4314] ? do_readv+0x460/0x460 [ 73.582966][ T4314] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 73.588943][ T4314] ? lock_chain_count+0x20/0x20 [ 73.593889][ T4314] ? vtime_user_exit+0x2c8/0x3e0 [ 73.598826][ T4314] ? lockdep_hardirqs_on+0x94/0x140 [ 73.604026][ T4314] do_syscall_64+0x4c/0xa0 [ 73.608438][ T4314] ? clear_bhb_loop+0x30/0x80 [ 73.613113][ T4314] ? clear_bhb_loop+0x30/0x80 [ 73.617794][ T4314] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.623697][ T4314] RIP: 0033:0x7fb264786819 [ 73.628115][ T4314] 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 [ 73.647920][ T4314] RSP: 002b:00007fff96607238 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 73.656504][ T4314] RAX: ffffffffffffffda RBX: 00007fb2649fffa0 RCX: 00007fb264786819 [ 73.664508][ T4314] RDX: 0000000000000001 RSI: 0000200000001280 RDI: 0000000000000003 [ 73.672774][ T4314] RBP: 00007fb26481cc91 R08: 0000000000000000 R09: 0000000000000000 [ 73.680835][ T4314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 73.688805][ T4314] R13: 00007fb2649fffac R14: 00007fb2649fffa0 R15: 00007fb2649fffa0 [ 73.696785][ T4314] [ 73.702270][ T7] Bluetooth: hci0: command 0x040f tx timeout