Warning: Permanently added '10.128.0.5' (ED25519) to the list of known hosts. 2026/05/25 10:15:35 parsed 1 programs [ 68.656025][ T4203] cgroup: Unknown subsys name 'net' [ 68.805543][ T4203] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.322635][ T4203] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.553972][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.560998][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.003125][ T4242] chnl_net:caif_netlink_parms(): no params data found [ 73.070689][ T4242] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.078556][ T4242] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.087095][ T4242] device bridge_slave_0 entered promiscuous mode [ 73.097120][ T4242] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.104443][ T4242] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.113136][ T4242] device bridge_slave_1 entered promiscuous mode [ 73.141363][ T4242] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.153119][ T4242] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.181535][ T4242] team0: Port device team_slave_0 added [ 73.189714][ T4242] team0: Port device team_slave_1 added [ 73.212656][ T4242] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.220067][ T4242] 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. [ 73.246533][ T4242] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.259878][ T4242] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.266958][ T4242] 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. [ 73.294112][ T4242] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.335077][ T4242] device hsr_slave_0 entered promiscuous mode [ 73.342320][ T4242] device hsr_slave_1 entered promiscuous mode [ 73.479453][ T4242] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.492787][ T4242] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.504086][ T4242] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.514386][ T4242] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.551715][ T4242] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.559804][ T4242] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.567946][ T4242] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.575337][ T4242] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.643934][ T4242] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.659482][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.675557][ T1459] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.684810][ T1459] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.695469][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.714291][ T4242] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.731396][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.740217][ T1459] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.747560][ T1459] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.760689][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.769177][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.776491][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.802503][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.812395][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.836783][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.865069][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.874177][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.891485][ T4242] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.991456][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.999083][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.013043][ T4242] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.033426][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.042861][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.060752][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.069538][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.078418][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.086809][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.096915][ T4242] device veth0_vlan entered promiscuous mode [ 74.108458][ T4242] device veth1_vlan entered promiscuous mode [ 74.128125][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.136386][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.144962][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.153731][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.176619][ T4242] device veth0_macvtap entered promiscuous mode [ 74.186432][ T4242] device veth1_macvtap entered promiscuous mode [ 74.202332][ T4242] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.211573][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.220652][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.229036][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.238377][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.249531][ T4242] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.261599][ T4242] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.272347][ T4242] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.281630][ T4242] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.291389][ T4242] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.301994][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.311065][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.424276][ T4242] syz-executor (4242) used greatest stack depth: 20696 bytes left [ 74.839292][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.853001][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.872000][ T1459] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.887343][ T1459] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.896474][ T1459] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.909580][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/25 10:15:44 executed programs: 0 [ 76.203425][ T4296] chnl_net:caif_netlink_parms(): no params data found [ 76.254630][ T4296] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.262595][ T4296] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.270674][ T4296] device bridge_slave_0 entered promiscuous mode [ 76.281003][ T4296] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.288706][ T4296] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.297188][ T4296] device bridge_slave_1 entered promiscuous mode [ 76.318611][ T4296] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.334410][ T4296] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.363971][ T4296] team0: Port device team_slave_0 added [ 76.372999][ T4296] team0: Port device team_slave_1 added [ 76.391309][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.398394][ T4296] 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. [ 76.426631][ T4296] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.442856][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.451363][ T4296] 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. [ 76.479722][ T4296] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.517590][ T4296] device hsr_slave_0 entered promiscuous mode [ 76.524692][ T4296] device hsr_slave_1 entered promiscuous mode [ 76.531798][ T4296] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.539947][ T4296] Cannot create hsr debugfs directory [ 76.629083][ T4296] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.100390][ T4311] Bluetooth: hci0: command 0x0409 tx timeout [ 79.817403][ T4296] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.870867][ T4296] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.935988][ T4296] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.049143][ T4296] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.072723][ T4296] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.082122][ T4296] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.093176][ T4296] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.180217][ T4257] Bluetooth: hci0: command 0x041b tx timeout [ 80.188794][ T4296] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.203325][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.213240][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.226252][ T4296] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.252769][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.261962][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.271385][ T802] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.278599][ T802] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.288068][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.303459][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.313320][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.323250][ T802] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.330392][ T802] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.338832][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.380287][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.390029][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.398977][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.408550][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.419485][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.429174][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.439401][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.448568][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.457754][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.466753][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.476218][ T4296] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.600785][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.609385][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.630647][ T4296] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.644634][ T144] device hsr_slave_0 left promiscuous mode [ 80.652385][ T144] device hsr_slave_1 left promiscuous mode [ 80.658988][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.667346][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.676621][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.685415][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.693566][ T144] device bridge_slave_1 left promiscuous mode [ 80.701748][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.716074][ T144] device bridge_slave_0 left promiscuous mode [ 80.724030][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.740646][ T144] device veth1_macvtap left promiscuous mode [ 80.747212][ T144] device veth0_macvtap left promiscuous mode [ 80.753715][ T144] device veth1_vlan left promiscuous mode [ 80.759997][ T144] device veth0_vlan left promiscuous mode [ 80.920850][ T144] team0 (unregistering): Port device team_slave_1 removed [ 80.937905][ T144] team0 (unregistering): Port device team_slave_0 removed [ 80.952617][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.968027][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.026723][ T144] bond0 (unregistering): Released all slaves [ 81.075169][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.084792][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.109994][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.121176][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.137638][ T4296] device veth0_vlan entered promiscuous mode [ 81.154588][ T4296] device veth1_vlan entered promiscuous mode [ 81.162073][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.171287][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.179300][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.200261][ T4296] device veth0_macvtap entered promiscuous mode [ 81.208184][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.217921][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.227683][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.238051][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.249576][ T4296] device veth1_macvtap entered promiscuous mode [ 81.279451][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.289894][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.298680][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.310988][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.319273][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.328419][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.339396][ T4296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.349221][ T4296] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.358688][ T4296] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.368225][ T4296] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.438659][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.448726][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.458051][ T802] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.478837][ T4277] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.488277][ T4277] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.496577][ T4277] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.598114][ T4319] [ 81.600512][ T4319] ====================================================== [ 81.607814][ T4319] WARNING: possible circular locking dependency detected [ 81.614945][ T4319] syzkaller #0 Not tainted [ 81.619478][ T4319] ------------------------------------------------------ [ 81.626787][ T4319] syz.0.17/4319 is trying to acquire lock: [ 81.632969][ T4319] ffff888024f58c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.644493][ T4319] [ 81.644493][ T4319] but task is already holding lock: [ 81.652576][ T4319] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.662974][ T4319] [ 81.662974][ T4319] which lock already depends on the new lock. [ 81.662974][ T4319] [ 81.673489][ T4319] [ 81.673489][ T4319] the existing dependency chain (in reverse order) is: [ 81.682615][ T4319] [ 81.682615][ T4319] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 81.690915][ T4319] __mutex_lock_common+0x1e3/0x2400 [ 81.696841][ T4319] mutex_lock_nested+0x17/0x20 [ 81.702439][ T4319] rfkill_register+0x33/0x980 [ 81.708546][ T4319] hci_register_dev+0x452/0x970 [ 81.714405][ T4319] vhci_create_device+0x32c/0x5c0 [ 81.719989][ T4319] vhci_write+0x391/0x450 [ 81.724879][ T4319] vfs_write+0x745/0xd60 [ 81.729764][ T4319] ksys_write+0x152/0x260 [ 81.734746][ T4319] do_syscall_64+0x4c/0xa0 [ 81.739810][ T4319] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.746342][ T4319] [ 81.746342][ T4319] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 81.754194][ T4319] __mutex_lock_common+0x1e3/0x2400 [ 81.760052][ T4319] mutex_lock_nested+0x17/0x20 [ 81.765527][ T4319] vhci_send_frame+0x88/0x100 [ 81.770765][ T4319] hci_send_frame+0x1a9/0x2e0 [ 81.775964][ T4319] hci_tx_work+0x9f9/0x1710 [ 81.780110][ T1346] cfg80211: failed to load regulatory.db [ 81.781409][ T4319] process_one_work+0x85f/0x1010 [ 81.793116][ T4319] worker_thread+0xaa6/0x1290 [ 81.798380][ T4319] kthread+0x436/0x520 [ 81.803156][ T4319] ret_from_fork+0x1f/0x30 [ 81.808102][ T4319] [ 81.808102][ T4319] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 81.817732][ T4319] __flush_work+0x116/0x210 [ 81.822937][ T4319] hci_dev_do_close+0x1e7/0x1030 [ 81.828527][ T4319] hci_unregister_dev+0x2d7/0x580 [ 81.834071][ T4319] vhci_release+0x73/0xc0 [ 81.839018][ T4319] __fput+0x234/0x930 [ 81.843609][ T4319] task_work_run+0x125/0x1a0 [ 81.848807][ T4319] do_exit+0x626/0x20c0 [ 81.853693][ T4319] do_group_exit+0x12e/0x300 [ 81.858951][ T4319] get_signal+0x6d6/0x12d0 [ 81.864235][ T4319] arch_do_signal_or_restart+0xe7/0x12c0 [ 81.870738][ T4319] exit_to_user_mode_loop+0x9e/0x130 [ 81.876836][ T4319] exit_to_user_mode_prepare+0xee/0x180 [ 81.882928][ T4319] syscall_exit_to_user_mode+0x16/0x40 [ 81.888915][ T4319] do_syscall_64+0x58/0xa0 [ 81.894227][ T4319] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.900929][ T4319] [ 81.900929][ T4319] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.908788][ T4319] __mutex_lock_common+0x1e3/0x2400 [ 81.914901][ T4319] mutex_lock_nested+0x17/0x20 [ 81.920483][ T4319] bg_scan_update+0x44/0x3b0 [ 81.925947][ T4319] process_one_work+0x85f/0x1010 [ 81.931445][ T4319] worker_thread+0xaa6/0x1290 [ 81.936688][ T4319] kthread+0x436/0x520 [ 81.941409][ T4319] ret_from_fork+0x1f/0x30 [ 81.946538][ T4319] [ 81.946538][ T4319] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.956689][ T4319] __lock_acquire+0x2c42/0x7d10 [ 81.962079][ T4319] lock_acquire+0x19e/0x400 [ 81.967698][ T4319] __flush_work+0x116/0x210 [ 81.972877][ T4319] __cancel_work_timer+0x3f4/0x560 [ 81.978515][ T4319] hci_request_cancel_all+0xcc/0x300 [ 81.984894][ T4319] hci_dev_do_close+0x4e/0x1030 [ 81.990542][ T4319] hci_rfkill_set_block+0x10a/0x190 [ 81.996874][ T4319] rfkill_set_block+0x1c9/0x3d0 [ 82.002561][ T4319] rfkill_fop_write+0x452/0x560 [ 82.009214][ T4319] vfs_write+0x30b/0xd60 [ 82.014449][ T4319] ksys_write+0x152/0x260 [ 82.019713][ T4319] do_syscall_64+0x4c/0xa0 [ 82.024765][ T4319] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.031284][ T4319] [ 82.031284][ T4319] other info that might help us debug this: [ 82.031284][ T4319] [ 82.041845][ T4319] Chain exists of: [ 82.041845][ T4319] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.041845][ T4319] [ 82.058329][ T4319] Possible unsafe locking scenario: [ 82.058329][ T4319] [ 82.065982][ T4319] CPU0 CPU1 [ 82.071452][ T4319] ---- ---- [ 82.076924][ T4319] lock(rfkill_global_mutex); [ 82.081835][ T4319] lock(&data->open_mutex); [ 82.089155][ T4319] lock(rfkill_global_mutex); [ 82.099188][ T4319] lock((work_completion)(&hdev->bg_scan_update)); [ 82.108172][ T4319] [ 82.108172][ T4319] *** DEADLOCK *** [ 82.108172][ T4319] [ 82.117017][ T4319] 1 lock held by syz.0.17/4319: [ 82.121954][ T4319] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 82.132575][ T4319] [ 82.132575][ T4319] stack backtrace: [ 82.138561][ T4319] CPU: 1 PID: 4319 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.145754][ T4319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 82.156332][ T4319] Call Trace: [ 82.159627][ T4319] [ 82.162572][ T4319] dump_stack_lvl+0x188/0x250 [ 82.167265][ T4319] ? load_image+0x400/0x400 [ 82.171760][ T4319] ? show_regs_print_info+0x20/0x20 [ 82.176950][ T4319] ? print_circular_bug+0x12b/0x1a0 [ 82.182239][ T4319] check_noncircular+0x296/0x330 [ 82.187372][ T4319] ? look_up_lock_class+0x71/0x110 [ 82.192761][ T4319] ? add_chain_block+0x940/0x940 [ 82.197698][ T4319] ? lockdep_lock+0xf1/0x1f0 [ 82.202566][ T4319] ? __lock_acquire+0x12e8/0x7d10 [ 82.207766][ T4319] ? mark_lock+0x94/0x320 [ 82.212350][ T4319] __lock_acquire+0x2c42/0x7d10 [ 82.217398][ T4319] ? verify_lock_unused+0x140/0x140 [ 82.222766][ T4319] ? verify_lock_unused+0x140/0x140 [ 82.228173][ T4319] ? mark_lock+0x94/0x320 [ 82.232587][ T4319] lock_acquire+0x19e/0x400 [ 82.237262][ T4319] ? __flush_work+0xfa/0x210 [ 82.242026][ T4319] ? __lock_acquire+0x7d10/0x7d10 [ 82.247307][ T4319] ? read_lock_is_recursive+0x10/0x10 [ 82.252760][ T4319] ? start_flush_work+0x776/0x820 [ 82.257794][ T4319] __flush_work+0x116/0x210 [ 82.262478][ T4319] ? __flush_work+0xfa/0x210 [ 82.267429][ T4319] ? flush_work+0x20/0x20 [ 82.271844][ T4319] ? try_to_grab_pending+0xfa/0x7f0 [ 82.277130][ T4319] ? mark_lock+0x94/0x320 [ 82.281806][ T4319] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 82.287870][ T4319] ? lock_chain_count+0x20/0x20 [ 82.292802][ T4319] ? mark_lock+0x94/0x320 [ 82.297386][ T4319] ? __cancel_work_timer+0x36a/0x560 [ 82.302671][ T4319] __cancel_work_timer+0x3f4/0x560 [ 82.307776][ T4319] ? cancel_work_sync+0x20/0x20 [ 82.313169][ T4319] ? __cancel_work+0x1f9/0x2e0 [ 82.318085][ T4319] ? lockdep_hardirqs_on+0x94/0x140 [ 82.323591][ T4319] ? __cancel_work+0x27b/0x2e0 [ 82.328392][ T4319] ? cancel_work+0x20/0x20 [ 82.332921][ T4319] ? lock_chain_count+0x20/0x20 [ 82.337781][ T4319] hci_request_cancel_all+0xcc/0x300 [ 82.343074][ T4319] hci_dev_do_close+0x4e/0x1030 [ 82.347924][ T4319] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.353989][ T4319] ? _raw_spin_unlock+0x40/0x40 [ 82.359119][ T4319] hci_rfkill_set_block+0x10a/0x190 [ 82.364606][ T4319] ? rcu_lock_release+0x20/0x20 [ 82.369471][ T4319] rfkill_set_block+0x1c9/0x3d0 [ 82.374324][ T4319] rfkill_fop_write+0x452/0x560 [ 82.379264][ T4319] ? rfkill_fop_read+0x520/0x520 [ 82.384196][ T4319] ? common_file_perm+0xc0/0x1c0 [ 82.389128][ T4319] ? fsnotify_perm+0x5d/0x560 [ 82.393915][ T4319] ? security_file_permission+0x75/0xa0 [ 82.399848][ T4319] ? rfkill_fop_read+0x520/0x520 [ 82.406495][ T4319] vfs_write+0x30b/0xd60 [ 82.411213][ T4319] ? file_end_write+0x250/0x250 [ 82.416546][ T4319] ? __context_tracking_exit+0x4c/0x80 [ 82.422628][ T4319] ? __lock_acquire+0x7d10/0x7d10 [ 82.428581][ T4319] ? __fdget_pos+0x1e2/0x370 [ 82.433423][ T4319] ksys_write+0x152/0x260 [ 82.437771][ T4319] ? __ia32_sys_read+0x80/0x80 [ 82.442636][ T4319] ? lockdep_hardirqs_on+0x94/0x140 [ 82.448286][ T4319] do_syscall_64+0x4c/0xa0 [ 82.452783][ T4319] ? clear_bhb_loop+0x30/0x80 [ 82.457752][ T4319] ? clear_bhb_loop+0x30/0x80 [ 82.462514][ T4319] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.468572][ T4319] RIP: 0033:0x7ff16f4c9e59 [ 82.473087][ T4319] 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 [ 82.494546][ T4319] RSP: 002b:00007ffde1171778 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.503055][ T4319] RAX: ffffffffffffffda RBX: 00007ff16f742fa0 RCX: 00007ff16f4c9e59 [ 82.511246][ T4319] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 82.519484][ T4319] RBP: 00007ff16f55fd6f R08: 0000000000000000 R09: 0000000000000000 [ 82.527986][ T4319] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.536156][ T4319] R13: 00007ff16f742fac R14: 00007ff16f742fa0 R15: 00007ff16f742fa0 [ 82.544133][ T4319] [ 82.559698][ T4257] Bluetooth: hci0: command 0x040f tx timeout