Warning: Permanently added '10.128.1.68' (ED25519) to the list of known hosts. 2025/11/06 15:39:31 parsed 1 programs [ 54.702996][ T4190] cgroup: Unknown subsys name 'net' [ 54.816418][ T4190] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 56.022576][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 59.282650][ T4264] chnl_net:caif_netlink_parms(): no params data found [ 59.318900][ T4264] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.326467][ T4264] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.334228][ T4264] device bridge_slave_0 entered promiscuous mode [ 59.342481][ T4264] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.349537][ T4264] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.357426][ T4264] device bridge_slave_1 entered promiscuous mode [ 59.377736][ T4264] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.388124][ T4264] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.408055][ T4264] team0: Port device team_slave_0 added [ 59.433372][ T4264] team0: Port device team_slave_1 added [ 59.448289][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.455688][ T4264] 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. [ 59.481944][ T4264] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.495406][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.502364][ T4264] 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. [ 59.528354][ T4264] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.566641][ T4264] device hsr_slave_0 entered promiscuous mode [ 59.573427][ T4264] device hsr_slave_1 entered promiscuous mode [ 59.662834][ T4264] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.672499][ T4264] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.680869][ T4264] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.689704][ T4264] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.724487][ T4264] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.731591][ T4264] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.739254][ T4264] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.746308][ T4264] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.793760][ T4264] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.806469][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.816683][ T3098] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.825718][ T3098] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.837328][ T4264] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.860836][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.869676][ T3098] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.876739][ T3098] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.888470][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.897758][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.904840][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.933992][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.942984][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.954607][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.978471][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.989312][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.000181][ T4264] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.092145][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.099588][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.111021][ T4264] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.127564][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.149282][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.159777][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.167910][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.180408][ T4264] device veth0_vlan entered promiscuous mode [ 60.194424][ T4264] device veth1_vlan entered promiscuous mode [ 60.217446][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.228338][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.240360][ T4264] device veth0_macvtap entered promiscuous mode [ 60.252613][ T4264] device veth1_macvtap entered promiscuous mode [ 60.269666][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.278092][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.287542][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.303632][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.314366][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.326354][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.335202][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.344861][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.357473][ T4264] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.367285][ T4264] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.377339][ T4264] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.386514][ T4264] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.692095][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.700041][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.731252][ T3098] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.733238][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 60.740392][ T3098] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.756914][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/11/06 15:39:39 executed programs: 0 [ 61.306328][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 61.351201][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.359313][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.367755][ T4297] device bridge_slave_0 entered promiscuous mode [ 61.375620][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.382918][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.391255][ T4297] device bridge_slave_1 entered promiscuous mode [ 61.416341][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.427936][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.458819][ T4297] team0: Port device team_slave_0 added [ 61.466376][ T4297] team0: Port device team_slave_1 added [ 61.490741][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.497854][ T4297] 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. [ 61.524109][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.536967][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.543947][ T4297] 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. [ 61.569932][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.608590][ T4297] device hsr_slave_0 entered promiscuous mode [ 61.615710][ T4297] device hsr_slave_1 entered promiscuous mode [ 61.622768][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.630520][ T4297] Cannot create hsr debugfs directory [ 61.665036][ T1172] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.192517][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 64.747340][ T1172] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.281757][ T4253] Bluetooth: hci0: command 0x041b tx timeout [ 65.866610][ T1172] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.908865][ T1172] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.768786][ T4297] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.777713][ T4297] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.787087][ T4297] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.809052][ T4297] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.865749][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.878136][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.885887][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.908847][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.918951][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.927923][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.936655][ T3098] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.943745][ T3098] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.951538][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.963678][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.972342][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.980604][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.987661][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.007247][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.017502][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.028332][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.037112][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.045793][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.070533][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.080121][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.091363][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.099868][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.117523][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.127529][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.143388][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.196321][ T1172] device hsr_slave_0 left promiscuous mode [ 67.202983][ T1172] device hsr_slave_1 left promiscuous mode [ 67.209439][ T1172] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.218232][ T1172] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.227348][ T1172] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.235050][ T1172] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.242784][ T1172] device bridge_slave_1 left promiscuous mode [ 67.249511][ T1172] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.262427][ T1172] device bridge_slave_0 left promiscuous mode [ 67.268560][ T1172] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.284934][ T1172] device veth1_macvtap left promiscuous mode [ 67.291056][ T1172] device veth0_macvtap left promiscuous mode [ 67.297656][ T1172] device veth1_vlan left promiscuous mode [ 67.303781][ T1172] device veth0_vlan left promiscuous mode [ 67.361988][ T4319] Bluetooth: hci0: command 0x040f tx timeout [ 67.423599][ T1172] team0 (unregistering): Port device team_slave_1 removed [ 67.436003][ T1172] team0 (unregistering): Port device team_slave_0 removed [ 67.446912][ T1172] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.463869][ T1172] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.507408][ T1172] bond0 (unregistering): Released all slaves [ 67.581245][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.588767][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.600757][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.619245][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.627901][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.646878][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.655349][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.666041][ T4297] device veth0_vlan entered promiscuous mode [ 67.678456][ T4297] device veth1_vlan entered promiscuous mode [ 67.689690][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.697820][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.705458][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.723467][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.732031][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.740452][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.751225][ T4297] device veth0_macvtap entered promiscuous mode [ 67.761569][ T4297] device veth1_macvtap entered promiscuous mode [ 67.776092][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.783586][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.791510][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.799460][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.808629][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.820043][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.833301][ T4297] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.843096][ T4297] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.852066][ T4297] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.860742][ T4297] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.880728][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.889256][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.932305][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.940326][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.951853][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.964575][ T3098] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.972564][ T3098] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.980665][ T3098] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.099673][ T4356] [ 68.102024][ T4356] ====================================================== [ 68.109028][ T4356] WARNING: possible circular locking dependency detected [ 68.116042][ T4356] syzkaller #0 Not tainted [ 68.120446][ T4356] ------------------------------------------------------ [ 68.127448][ T4356] syz.0.17/4356 is trying to acquire lock: [ 68.133239][ T4356] ffff888073e28c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 68.144294][ T4356] [ 68.144294][ T4356] but task is already holding lock: [ 68.151644][ T4356] ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 68.161295][ T4356] [ 68.161295][ T4356] which lock already depends on the new lock. [ 68.161295][ T4356] [ 68.171683][ T4356] [ 68.171683][ T4356] the existing dependency chain (in reverse order) is: [ 68.180682][ T4356] [ 68.180682][ T4356] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 68.188669][ T4356] __mutex_lock_common+0x1eb/0x2390 [ 68.194387][ T4356] mutex_lock_nested+0x17/0x20 [ 68.199669][ T4356] rfkill_register+0x33/0x8a0 [ 68.204858][ T4356] hci_register_dev+0x452/0x970 [ 68.210224][ T4356] vhci_create_device+0x32c/0x5c0 [ 68.215762][ T4356] vhci_write+0x391/0x450 [ 68.220604][ T4356] vfs_write+0x712/0xd00 [ 68.225355][ T4356] ksys_write+0x14d/0x250 [ 68.230200][ T4356] do_syscall_64+0x4c/0xa0 [ 68.235131][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.241538][ T4356] [ 68.241538][ T4356] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 68.249350][ T4356] __mutex_lock_common+0x1eb/0x2390 [ 68.255063][ T4356] mutex_lock_nested+0x17/0x20 [ 68.260340][ T4356] vhci_send_frame+0x88/0x100 [ 68.265525][ T4356] hci_send_frame+0x1a9/0x2e0 [ 68.270721][ T4356] hci_tx_work+0x9f9/0x1710 [ 68.275737][ T4356] process_one_work+0x863/0x1000 [ 68.281186][ T4356] worker_thread+0xaa8/0x12a0 [ 68.286385][ T4356] kthread+0x436/0x520 [ 68.290965][ T4356] ret_from_fork+0x1f/0x30 [ 68.295889][ T4356] [ 68.295889][ T4356] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 68.305083][ T4356] __flush_work+0xdd/0x1b0 [ 68.310013][ T4356] hci_dev_do_close+0x1e7/0x1030 [ 68.315460][ T4356] hci_unregister_dev+0x2d7/0x580 [ 68.320997][ T4356] vhci_release+0x73/0xc0 [ 68.325839][ T4356] __fput+0x234/0x930 [ 68.330331][ T4356] task_work_run+0x125/0x1a0 [ 68.335428][ T4356] do_exit+0x61e/0x20a0 [ 68.340096][ T4356] do_group_exit+0x12e/0x300 [ 68.345194][ T4356] get_signal+0x6ca/0x12c0 [ 68.350123][ T4356] arch_do_signal_or_restart+0xc1/0x1300 [ 68.356266][ T4356] exit_to_user_mode_loop+0x9e/0x130 [ 68.362061][ T4356] exit_to_user_mode_prepare+0xee/0x180 [ 68.368116][ T4356] syscall_exit_to_user_mode+0x16/0x40 [ 68.374084][ T4356] do_syscall_64+0x58/0xa0 [ 68.379008][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.385409][ T4356] [ 68.385409][ T4356] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 68.393045][ T4356] __mutex_lock_common+0x1eb/0x2390 [ 68.398755][ T4356] mutex_lock_nested+0x17/0x20 [ 68.404028][ T4356] bg_scan_update+0x44/0x3b0 [ 68.409126][ T4356] process_one_work+0x863/0x1000 [ 68.414570][ T4356] worker_thread+0xaa8/0x12a0 [ 68.419757][ T4356] kthread+0x436/0x520 [ 68.424332][ T4356] ret_from_fork+0x1f/0x30 [ 68.429254][ T4356] [ 68.429254][ T4356] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 68.439059][ T4356] __lock_acquire+0x2c33/0x7c60 [ 68.444421][ T4356] lock_acquire+0x197/0x3f0 [ 68.449427][ T4356] __flush_work+0xdd/0x1b0 [ 68.454342][ T4356] __cancel_work_timer+0x3ac/0x520 [ 68.459950][ T4356] hci_request_cancel_all+0xcc/0x300 [ 68.465740][ T4356] hci_dev_do_close+0x4e/0x1030 [ 68.471086][ T4356] hci_rfkill_set_block+0x10a/0x190 [ 68.476779][ T4356] rfkill_set_block+0x1c6/0x420 [ 68.482128][ T4356] rfkill_fop_write+0x458/0x560 [ 68.487477][ T4356] vfs_write+0x300/0xd00 [ 68.492215][ T4356] ksys_write+0x14d/0x250 [ 68.497042][ T4356] do_syscall_64+0x4c/0xa0 [ 68.501957][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.508349][ T4356] [ 68.508349][ T4356] other info that might help us debug this: [ 68.508349][ T4356] [ 68.518554][ T4356] Chain exists of: [ 68.518554][ T4356] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.518554][ T4356] [ 68.534249][ T4356] Possible unsafe locking scenario: [ 68.534249][ T4356] [ 68.541671][ T4356] CPU0 CPU1 [ 68.547011][ T4356] ---- ---- [ 68.552351][ T4356] lock(rfkill_global_mutex); [ 68.557094][ T4356] lock(&data->open_mutex); [ 68.564176][ T4356] lock(rfkill_global_mutex); [ 68.571432][ T4356] lock((work_completion)(&hdev->bg_scan_update)); [ 68.577992][ T4356] [ 68.577992][ T4356] *** DEADLOCK *** [ 68.577992][ T4356] [ 68.586105][ T4356] 1 lock held by syz.0.17/4356: [ 68.590927][ T4356] #0: ffffffff8d4c0f28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 68.600990][ T4356] [ 68.600990][ T4356] stack backtrace: [ 68.606864][ T4356] CPU: 0 PID: 4356 Comm: syz.0.17 Not tainted syzkaller #0 [ 68.614034][ T4356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 68.624071][ T4356] Call Trace: [ 68.627329][ T4356] [ 68.630236][ T4356] dump_stack_lvl+0x168/0x230 [ 68.634895][ T4356] ? load_image+0x3b0/0x3b0 [ 68.639376][ T4356] ? show_regs_print_info+0x20/0x20 [ 68.644552][ T4356] ? print_circular_bug+0x12b/0x1a0 [ 68.649726][ T4356] check_noncircular+0x274/0x310 [ 68.654645][ T4356] ? add_chain_block+0x940/0x940 [ 68.659563][ T4356] ? lockdep_lock+0xdc/0x1e0 [ 68.664131][ T4356] ? __lock_acquire+0x12d9/0x7c60 [ 68.669135][ T4356] ? lockdep_lock+0x1e0/0x1e0 [ 68.673791][ T4356] ? mark_lock+0x94/0x320 [ 68.678104][ T4356] __lock_acquire+0x2c33/0x7c60 [ 68.682936][ T4356] ? verify_lock_unused+0x140/0x140 [ 68.688114][ T4356] ? verify_lock_unused+0x140/0x140 [ 68.693296][ T4356] lock_acquire+0x197/0x3f0 [ 68.697776][ T4356] ? __flush_work+0xc1/0x1b0 [ 68.702343][ T4356] ? __lock_acquire+0x7c60/0x7c60 [ 68.707355][ T4356] ? read_lock_is_recursive+0x10/0x10 [ 68.712708][ T4356] ? start_flush_work+0x776/0x820 [ 68.717706][ T4356] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.723573][ T4356] ? _raw_spin_unlock+0x40/0x40 [ 68.728399][ T4356] __flush_work+0xdd/0x1b0 [ 68.732792][ T4356] ? __flush_work+0xc1/0x1b0 [ 68.737354][ T4356] ? flush_work+0x20/0x20 [ 68.741662][ T4356] ? try_to_grab_pending+0xf3/0x7e0 [ 68.746835][ T4356] ? lockdep_hardirqs_off+0x70/0x100 [ 68.752096][ T4356] ? mark_lock+0x94/0x320 [ 68.756402][ T4356] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 68.762357][ T4356] ? lock_chain_count+0x20/0x20 [ 68.767185][ T4356] ? mark_lock+0x94/0x320 [ 68.771493][ T4356] ? __cancel_work_timer+0x331/0x520 [ 68.776761][ T4356] __cancel_work_timer+0x3ac/0x520 [ 68.781847][ T4356] ? cancel_work_sync+0x20/0x20 [ 68.786672][ T4356] ? __cancel_work+0x1f4/0x2d0 [ 68.791411][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 68.796586][ T4356] ? __cancel_work+0x26f/0x2d0 [ 68.801326][ T4356] ? cancel_work+0x20/0x20 [ 68.805718][ T4356] ? lock_chain_count+0x20/0x20 [ 68.810543][ T4356] hci_request_cancel_all+0xcc/0x300 [ 68.815807][ T4356] hci_dev_do_close+0x4e/0x1030 [ 68.820634][ T4356] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.826505][ T4356] ? _raw_spin_unlock+0x40/0x40 [ 68.831330][ T4356] hci_rfkill_set_block+0x10a/0x190 [ 68.836506][ T4356] ? rcu_lock_release+0x20/0x20 [ 68.841330][ T4356] rfkill_set_block+0x1c6/0x420 [ 68.846161][ T4356] rfkill_fop_write+0x458/0x560 [ 68.850986][ T4356] ? verify_lock_unused+0x140/0x140 [ 68.856159][ T4356] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.861071][ T4356] ? common_file_perm+0x130/0x1c0 [ 68.866074][ T4356] ? fsnotify_perm+0x5d/0x560 [ 68.870727][ T4356] ? security_file_permission+0x75/0xa0 [ 68.876248][ T4356] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.881164][ T4356] vfs_write+0x300/0xd00 [ 68.885382][ T4356] ? file_end_write+0x250/0x250 [ 68.890206][ T4356] ? __context_tracking_exit+0x4c/0x80 [ 68.895644][ T4356] ? __lock_acquire+0x7c60/0x7c60 [ 68.900649][ T4356] ? __fdget_pos+0x1e2/0x370 [ 68.905217][ T4356] ksys_write+0x14d/0x250 [ 68.909522][ T4356] ? __ia32_sys_read+0x80/0x80 [ 68.914260][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 68.919436][ T4356] do_syscall_64+0x4c/0xa0 [ 68.923829][ T4356] ? clear_bhb_loop+0x30/0x80 [ 68.928480][ T4356] ? clear_bhb_loop+0x30/0x80 [ 68.933139][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.939020][ T4356] RIP: 0033:0x7f703913c6c9 [ 68.943412][ T4356] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 68.962992][ T4356] RSP: 002b:00007fff5a9ec798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.971382][ T4356] RAX: ffffffffffffffda RBX: 00007f7039392fa0 RCX: 00007f703913c6c9 [ 68.979326][ T4356] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 68.987270][ T4356] RBP: 00007f70391bef91 R08: 0000000000000000 R09: 0000000000000000 [ 68.995216][ T4356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.003161][ T4356] R13: 00007f7039392fa0 R14: 00007f7039392fa0 R15: 0000000000000003 [ 69.011113][ T4356]