Warning: Permanently added '10.128.1.29' (ED25519) to the list of known hosts. 2026/08/19 00:26:57 parsed 1 programs 2026/08/19 00:26:57 serving rpc on tcp://38557 [ 88.263130][ T4203] cgroup: Unknown subsys name 'net' [ 88.381161][ T4203] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 90.151091][ T4203] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 93.221697][ T4237] chnl_net:caif_netlink_parms(): no params data found [ 93.296899][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.305602][ T4237] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.314784][ T4237] device bridge_slave_0 entered promiscuous mode [ 93.330868][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.341242][ T4237] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.350650][ T4237] device bridge_slave_1 entered promiscuous mode [ 93.387764][ T4237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.403536][ T4237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.437046][ T4237] team0: Port device team_slave_0 added [ 93.447085][ T4237] team0: Port device team_slave_1 added [ 93.474758][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.484622][ T4237] 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. [ 93.514011][ T4237] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 93.530283][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 93.538861][ T4237] 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. [ 93.567921][ T4237] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.618615][ T4237] device hsr_slave_0 entered promiscuous mode [ 93.627701][ T4237] device hsr_slave_1 entered promiscuous mode [ 93.778754][ T4237] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.793704][ T4237] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.804746][ T4237] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.815873][ T4237] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.850801][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.858424][ T4237] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.867090][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.875481][ T4237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.947507][ T4237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.969370][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 93.981852][ T431] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.992271][ T431] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.002823][ T431] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 94.019778][ T4237] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.034945][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.046557][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.055151][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.079071][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.089642][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.097991][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.122730][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 94.151484][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 94.168793][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 94.192678][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 94.202068][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 94.213529][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 94.225813][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 94.236025][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 94.248566][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 94.258794][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 94.273273][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 94.431158][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 94.440049][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 94.455956][ T4237] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.477340][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 94.487534][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 94.509337][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 94.519392][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 94.529772][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 94.540227][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 94.563556][ T4237] device veth0_vlan entered promiscuous mode [ 94.581137][ T4237] device veth1_vlan entered promiscuous mode [ 94.602948][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 94.613268][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 94.622033][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 94.632408][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 94.654010][ T4237] device veth0_macvtap entered promiscuous mode [ 94.665004][ T4237] device veth1_macvtap entered promiscuous mode [ 94.683204][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.693592][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 94.704803][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 94.714027][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 94.723953][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 94.754401][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 94.762957][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 94.774262][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 94.789114][ T4237] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.801651][ T4237] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.812234][ T4237] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.823517][ T4237] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.944434][ T4237] syz-executor (4237) used greatest stack depth: 20880 bytes left [ 95.062589][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.074904][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.086782][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 95.118937][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.130015][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.140394][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 97.039092][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.368358][ T13] cfg80211: failed to load regulatory.db 2026/08/19 00:27:09 executed programs: 0 [ 97.609669][ T4300] chnl_net:caif_netlink_parms(): no params data found [ 97.657796][ T4300] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.665798][ T4300] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.674603][ T4300] device bridge_slave_0 entered promiscuous mode [ 97.684064][ T4300] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.693761][ T4300] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.703781][ T4300] device bridge_slave_1 entered promiscuous mode [ 97.732534][ T4300] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.756579][ T4300] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.787668][ T4300] team0: Port device team_slave_0 added [ 97.799458][ T4300] team0: Port device team_slave_1 added [ 97.822615][ T4300] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.830647][ T4300] 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. [ 97.861388][ T4300] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.876421][ T4300] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.884991][ T4300] 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. [ 97.925648][ T4300] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.967249][ T4300] device hsr_slave_0 entered promiscuous mode [ 97.975009][ T4300] device hsr_slave_1 entered promiscuous mode [ 97.984699][ T4300] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 97.996048][ T4300] Cannot create hsr debugfs directory [ 99.527131][ T4251] Bluetooth: hci0: command 0x0409 tx timeout [ 100.208135][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.253921][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.333408][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.252954][ T4300] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.266330][ T4300] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.277316][ T4300] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.313084][ T4300] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.403389][ T4300] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.443286][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 101.451995][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 101.463506][ T4300] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.474207][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.486203][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.495954][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.504323][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.514199][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 101.530468][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.540463][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.549662][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.557245][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.571308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 101.588861][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 101.602603][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.612801][ T4252] Bluetooth: hci0: command 0x041b tx timeout [ 101.619896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.653986][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 101.662648][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.672361][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.682285][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 101.692283][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 101.703269][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 101.713152][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 101.726698][ T4300] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 101.869604][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 101.878688][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 101.896251][ T4300] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.939423][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 101.951462][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 101.993910][ T4300] device veth0_vlan entered promiscuous mode [ 102.003923][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 102.016579][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 102.026256][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 102.036110][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 102.071326][ T4300] device veth1_vlan entered promiscuous mode [ 102.095047][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 102.104643][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 102.114301][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 102.126904][ T4258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 102.141201][ T4300] device veth0_macvtap entered promiscuous mode [ 102.161246][ T4300] device veth1_macvtap entered promiscuous mode [ 102.194589][ T4300] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 102.209409][ T4300] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 102.222902][ T4300] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.236610][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 102.245479][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 102.254135][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 102.264305][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 102.275990][ T4300] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 102.289175][ T4300] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 102.302311][ T4300] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.317103][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 102.333011][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 102.347309][ T4300] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.358677][ T4300] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.370883][ T4300] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.381489][ T4300] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.402563][ T144] device hsr_slave_0 left promiscuous mode [ 102.411251][ T144] device hsr_slave_1 left promiscuous mode [ 102.421314][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.432862][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.443854][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.452617][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.460999][ T144] device bridge_slave_1 left promiscuous mode [ 102.469220][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.484183][ T144] device bridge_slave_0 left promiscuous mode [ 102.492187][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.515767][ T144] device veth1_macvtap left promiscuous mode [ 102.523711][ T144] device veth0_macvtap left promiscuous mode [ 102.531940][ T144] device veth1_vlan left promiscuous mode [ 102.539058][ T144] device veth0_vlan left promiscuous mode [ 102.760754][ T144] team0 (unregistering): Port device team_slave_1 removed [ 102.774839][ T144] team0 (unregistering): Port device team_slave_0 removed [ 102.792025][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 102.812104][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 102.879141][ T144] bond0 (unregistering): Released all slaves [ 103.009771][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.029910][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.042497][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.054672][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.054776][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 103.083762][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 103.223218][ T4357] [ 103.226040][ T4357] ====================================================== [ 103.233588][ T4357] WARNING: possible circular locking dependency detected [ 103.244081][ T4357] syzkaller #0 Not tainted [ 103.248952][ T4357] ------------------------------------------------------ [ 103.258043][ T4357] syz.0.17/4357 is trying to acquire lock: [ 103.264317][ T4357] ffff888078da9028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 103.276917][ T4357] [ 103.276917][ T4357] but task is already holding lock: [ 103.287880][ T4357] ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 103.299567][ T4357] [ 103.299567][ T4357] which lock already depends on the new lock. [ 103.299567][ T4357] [ 103.313362][ T4357] [ 103.313362][ T4357] the existing dependency chain (in reverse order) is: [ 103.324364][ T4357] [ 103.324364][ T4357] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 103.335606][ T4357] __mutex_lock_common+0x1e5/0x2400 [ 103.343855][ T4357] mutex_lock_nested+0x17/0x20 [ 103.351936][ T4357] rfkill_register+0x2f/0x970 [ 103.359506][ T4357] hci_register_dev+0x459/0x980 [ 103.366269][ T4357] vhci_create_device+0x32e/0x5c0 [ 103.372656][ T4357] vhci_write+0x389/0x440 [ 103.377918][ T4357] vfs_write+0x748/0xd70 [ 103.385317][ T4357] ksys_write+0x153/0x260 [ 103.393634][ T4357] do_syscall_64+0x4c/0xa0 [ 103.399062][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.406014][ T4357] [ 103.406014][ T4357] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 103.415035][ T4357] __mutex_lock_common+0x1e5/0x2400 [ 103.422532][ T4357] mutex_lock_nested+0x17/0x20 [ 103.430765][ T4357] vhci_send_frame+0x88/0x100 [ 103.436114][ T4357] hci_send_frame+0x1a9/0x2e0 [ 103.441621][ T4357] hci_tx_work+0x9b5/0x16d0 [ 103.446885][ T4357] process_one_work+0x867/0xff0 [ 103.452662][ T4357] worker_thread+0xad7/0x12a0 [ 103.458273][ T4357] kthread+0x42e/0x520 [ 103.463037][ T4357] ret_from_fork+0x1f/0x30 [ 103.468103][ T4357] [ 103.468103][ T4357] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 103.477887][ T4357] __flush_work+0x116/0x210 [ 103.483597][ T4357] hci_dev_do_close+0x201/0x1020 [ 103.489543][ T4357] hci_unregister_dev+0x2eb/0x590 [ 103.496141][ T4357] vhci_release+0x73/0xc0 [ 103.502531][ T4357] __fput+0x212/0x8c0 [ 103.508848][ T4357] task_work_run+0x125/0x1a0 [ 103.516055][ T4357] do_exit+0x635/0x2110 [ 103.521371][ T4357] do_group_exit+0x12c/0x2f0 [ 103.526957][ T4357] get_signal+0x7eb/0x12e0 [ 103.532722][ T4357] arch_do_signal_or_restart+0xe6/0x12a0 [ 103.539913][ T4357] exit_to_user_mode_loop+0x9e/0x130 [ 103.546384][ T4357] exit_to_user_mode_prepare+0xee/0x180 [ 103.553284][ T4357] syscall_exit_to_user_mode+0x16/0x40 [ 103.559797][ T4357] do_syscall_64+0x58/0xa0 [ 103.567515][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.575191][ T4357] [ 103.575191][ T4357] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 103.583897][ T4357] __mutex_lock_common+0x1e5/0x2400 [ 103.591304][ T4357] mutex_lock_nested+0x17/0x20 [ 103.597477][ T4357] bg_scan_update+0x44/0x3b0 [ 103.603734][ T4357] process_one_work+0x867/0xff0 [ 103.610448][ T4357] worker_thread+0xad7/0x12a0 [ 103.616630][ T4357] kthread+0x42e/0x520 [ 103.622015][ T4357] ret_from_fork+0x1f/0x30 [ 103.628588][ T4357] [ 103.628588][ T4357] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 103.639509][ T4357] __lock_acquire+0x2c66/0x7b50 [ 103.645487][ T4357] lock_acquire+0x19e/0x400 [ 103.651372][ T4357] __flush_work+0x116/0x210 [ 103.656664][ T4357] __cancel_work_timer+0x3f4/0x560 [ 103.662907][ T4357] hci_request_cancel_all+0xcc/0x300 [ 103.669584][ T4357] hci_dev_do_close+0x4e/0x1020 [ 103.675735][ T4357] hci_rfkill_set_block+0x101/0x180 [ 103.682035][ T4357] rfkill_set_block+0x1c1/0x3c0 [ 103.686343][ T4251] Bluetooth: hci0: command 0x040f tx timeout [ 103.689029][ T4357] rfkill_fop_write+0x453/0x560 [ 103.701084][ T4357] vfs_write+0x304/0xd70 [ 103.706235][ T4357] ksys_write+0x153/0x260 [ 103.711789][ T4357] do_syscall_64+0x4c/0xa0 [ 103.717358][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.724311][ T4357] [ 103.724311][ T4357] other info that might help us debug this: [ 103.724311][ T4357] [ 103.736251][ T4357] Chain exists of: [ 103.736251][ T4357] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 103.736251][ T4357] [ 103.753629][ T4357] Possible unsafe locking scenario: [ 103.753629][ T4357] [ 103.762027][ T4357] CPU0 CPU1 [ 103.767645][ T4357] ---- ---- [ 103.773214][ T4357] lock(rfkill_global_mutex); [ 103.779065][ T4357] lock(&data->open_mutex); [ 103.786943][ T4357] lock(rfkill_global_mutex); [ 103.794632][ T4357] lock((work_completion)(&hdev->bg_scan_update)); [ 103.801974][ T4357] [ 103.801974][ T4357] *** DEADLOCK *** [ 103.801974][ T4357] [ 103.810457][ T4357] 1 lock held by syz.0.17/4357: [ 103.815509][ T4357] #0: ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 103.828989][ T4357] [ 103.828989][ T4357] stack backtrace: [ 103.835838][ T4357] CPU: 0 PID: 4357 Comm: syz.0.17 Not tainted syzkaller #0 [ 103.843729][ T4357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 103.854597][ T4357] Call Trace: [ 103.858184][ T4357] [ 103.861430][ T4357] dump_stack_lvl+0x188/0x250 [ 103.866725][ T4357] ? load_image+0x410/0x410 [ 103.871710][ T4357] ? show_regs_print_info+0x20/0x20 [ 103.877491][ T4357] ? print_circular_bug+0x12b/0x1a0 [ 103.884137][ T4357] check_noncircular+0x296/0x330 [ 103.889848][ T4357] ? look_up_lock_class+0x71/0x110 [ 103.896386][ T4357] ? add_chain_block+0x9b0/0x9b0 [ 103.903311][ T4357] ? lockdep_lock+0xf1/0x1f0 [ 103.908357][ T4357] ? __lock_acquire+0x1305/0x7b50 [ 103.914344][ T4357] ? mark_lock+0x94/0x320 [ 103.919359][ T4357] ? _find_first_zero_bit+0xd1/0xf0 [ 103.924923][ T4357] __lock_acquire+0x2c66/0x7b50 [ 103.931798][ T4357] ? verify_lock_unused+0x140/0x140 [ 103.937835][ T4357] ? verify_lock_unused+0x140/0x140 [ 103.943897][ T4357] lock_acquire+0x19e/0x400 [ 103.949592][ T4357] ? __flush_work+0xfa/0x210 [ 103.954592][ T4357] ? __lock_acquire+0x7b50/0x7b50 [ 103.961045][ T4357] ? read_lock_is_recursive+0x10/0x10 [ 103.966847][ T4357] ? start_flush_work+0x784/0x830 [ 103.972069][ T4357] __flush_work+0x116/0x210 [ 103.976790][ T4357] ? __flush_work+0xfa/0x210 [ 103.982310][ T4357] ? flush_work+0x20/0x20 [ 103.987773][ T4357] ? try_to_grab_pending+0xfb/0x820 [ 103.996080][ T4357] ? mark_lock+0x94/0x320 [ 104.002028][ T4357] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 104.010493][ T4357] ? lock_chain_count+0x20/0x20 [ 104.018165][ T4357] ? mark_lock+0x94/0x320 [ 104.024174][ T4357] ? __cancel_work_timer+0x36a/0x560 [ 104.033088][ T4357] __cancel_work_timer+0x3f4/0x560 [ 104.040627][ T4357] ? cancel_work_sync+0x20/0x20 [ 104.047138][ T4357] ? __cancel_work+0x1f9/0x2e0 [ 104.052946][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 104.059013][ T4357] ? __cancel_work+0x27b/0x2e0 [ 104.064513][ T4357] ? cancel_work+0x20/0x20 [ 104.069367][ T4357] hci_request_cancel_all+0xcc/0x300 [ 104.075941][ T4357] hci_dev_do_close+0x4e/0x1020 [ 104.081412][ T4357] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 104.088232][ T4357] ? _raw_spin_unlock+0x40/0x40 [ 104.094284][ T4357] hci_rfkill_set_block+0x101/0x180 [ 104.101915][ T4357] ? rcu_lock_release+0x20/0x20 [ 104.109054][ T4357] rfkill_set_block+0x1c1/0x3c0 [ 104.118521][ T4357] rfkill_fop_write+0x453/0x560 [ 104.127594][ T4357] ? rfkill_fop_read+0x560/0x560 [ 104.135184][ T4357] ? common_file_perm+0x100/0x1c0 [ 104.142560][ T4357] ? fsnotify_perm+0x5d/0x560 [ 104.147982][ T4357] ? security_file_permission+0x75/0xa0 [ 104.154863][ T4357] ? rfkill_fop_read+0x560/0x560 [ 104.162865][ T4357] vfs_write+0x304/0xd70 [ 104.169092][ T4357] ? file_end_write+0x250/0x250 [ 104.174643][ T4357] ? __context_tracking_exit+0x4c/0x80 [ 104.180797][ T4357] ? __fdget_pos+0x1e2/0x370 [ 104.189045][ T4357] ksys_write+0x153/0x260 [ 104.195007][ T4357] ? __ia32_sys_read+0x80/0x80 [ 104.201693][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 104.208576][ T4357] do_syscall_64+0x4c/0xa0 [ 104.215991][ T4357] ? clear_bhb_loop+0x30/0x80 [ 104.222406][ T4357] ? clear_bhb_loop+0x30/0x80 [ 104.228458][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 104.235734][ T4357] RIP: 0033:0x7fd4b2a630d9 [ 104.240844][ T4357] 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 [ 104.264036][ T4357] RSP: 002b:00007ffc29d69a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.273280][ T4357] RAX: ffffffffffffffda RBX: 00007fd4b2ceafa0 RCX: 00007fd4b2a630d9 [ 104.282400][ T4357] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 104.290701][ T4357] RBP: 00007fd4b2afa024 R08: 0000000000000000 R09: 0000000000000000 [ 104.298807][ T4357] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 104.307729][ T4357] R13: 00007fd4b2ceafac R14: 00007fd4b2ceafa0 R15: 00007fd4b2ceafa0 [ 104.316530][ T4357]