Warning: Permanently added '10.128.1.92' (ED25519) to the list of known hosts. 2025/09/29 04:53:18 parsed 1 programs [ 69.845320][ T4189] cgroup: Unknown subsys name 'net' [ 69.987651][ T4189] cgroup: Unknown subsys name 'rlimit' [ 71.313917][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.320415][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.502021][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.932317][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.940303][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.969837][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.989051][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.997984][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.008030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.488291][ T4270] chnl_net:caif_netlink_parms(): no params data found [ 75.554007][ T4270] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.561690][ T4270] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.569500][ T4270] device bridge_slave_0 entered promiscuous mode [ 75.579159][ T4270] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.586387][ T4270] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.594983][ T4270] device bridge_slave_1 entered promiscuous mode [ 75.618612][ T4270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.630340][ T4270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.668242][ T4270] team0: Port device team_slave_0 added [ 75.675486][ T4270] team0: Port device team_slave_1 added [ 75.694397][ T4270] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.701414][ T4270] 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. [ 75.727781][ T4270] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.740493][ T4270] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.747648][ T4270] 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. [ 75.773565][ T4270] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.824630][ T4270] device hsr_slave_0 entered promiscuous mode [ 75.831619][ T4270] device hsr_slave_1 entered promiscuous mode [ 75.964200][ T4270] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.974658][ T4270] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.986661][ T4270] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.996714][ T4270] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.036344][ T4270] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.043664][ T4270] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.051713][ T4270] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.058780][ T4270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.119747][ T4270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.136890][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.146481][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.155177][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.163694][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.181113][ T4270] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.195394][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.204395][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.211489][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.223408][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.232435][ T298] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.239502][ T298] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.266326][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.274899][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.296133][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.305730][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.315515][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.349490][ T4270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.466587][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.477313][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.495096][ T4270] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.518010][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.528765][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.551486][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.561927][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.574520][ T4270] device veth0_vlan entered promiscuous mode [ 76.583205][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.593121][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.604644][ T4270] device veth1_vlan entered promiscuous mode [ 76.632979][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.641935][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.650082][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.660457][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.672200][ T4270] device veth0_macvtap entered promiscuous mode [ 76.684607][ T4270] device veth1_macvtap entered promiscuous mode [ 76.702369][ T4270] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.709928][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.723444][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.733445][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.742370][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.754732][ T4270] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.769865][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.779192][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.792771][ T4270] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.803479][ T4270] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.812879][ T4270] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.823595][ T4270] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/09/29 04:53:28 executed programs: 0 [ 77.500491][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 77.563061][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.570204][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.578300][ T4293] device bridge_slave_0 entered promiscuous mode [ 77.588313][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.595524][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.604241][ T4293] device bridge_slave_1 entered promiscuous mode [ 77.628185][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.642816][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.682865][ T4293] team0: Port device team_slave_0 added [ 77.693994][ T4293] team0: Port device team_slave_1 added [ 77.720161][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.727411][ T4293] 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. [ 77.756221][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.768924][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.778560][ T4293] 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. [ 77.805367][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.843214][ T4293] device hsr_slave_0 entered promiscuous mode [ 77.850359][ T4293] device hsr_slave_1 entered promiscuous mode [ 77.857038][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.865731][ T4293] Cannot create hsr debugfs directory [ 77.953778][ T4293] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.391601][ T4255] Bluetooth: hci0: command 0x0409 tx timeout [ 80.577757][ T4293] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.471581][ T4254] Bluetooth: hci0: command 0x041b tx timeout [ 82.127891][ T4293] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.208430][ T4293] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.386464][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.397426][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.406368][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.415755][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.496313][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.508920][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.519406][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.530403][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.542996][ T1236] device hsr_slave_0 left promiscuous mode [ 82.549440][ T1236] device hsr_slave_1 left promiscuous mode [ 82.556544][ T1236] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.564264][ T1236] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.573587][ T1236] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.581097][ T1236] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.588833][ T1236] device bridge_slave_1 left promiscuous mode [ 82.595834][ T1236] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.609678][ T1236] device bridge_slave_0 left promiscuous mode [ 82.616035][ T1236] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.633944][ T1236] device veth1_macvtap left promiscuous mode [ 82.640137][ T1236] device veth0_macvtap left promiscuous mode [ 82.646373][ T1236] device veth1_vlan left promiscuous mode [ 82.652764][ T1236] device veth0_vlan left promiscuous mode [ 82.803052][ T1236] team0 (unregistering): Port device team_slave_1 removed [ 82.815448][ T1236] team0 (unregistering): Port device team_slave_0 removed [ 82.829026][ T1236] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.846512][ T1236] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.902960][ T1236] bond0 (unregistering): Released all slaves [ 82.954658][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.963968][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.972808][ T298] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.979889][ T298] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.990267][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.000753][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.011700][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.020023][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.027258][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.042462][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.054223][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.071125][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.080736][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.089585][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.098567][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.108083][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.119186][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.130506][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.144456][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.153378][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.166211][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.272011][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.279449][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.291276][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.311260][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.319975][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.339714][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.348886][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.360782][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.368894][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.380740][ T4293] device veth0_vlan entered promiscuous mode [ 83.393197][ T4293] device veth1_vlan entered promiscuous mode [ 83.416284][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.425050][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.434710][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.443624][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.456189][ T4293] device veth0_macvtap entered promiscuous mode [ 83.467463][ T4293] device veth1_macvtap entered promiscuous mode [ 83.485260][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.494141][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.503495][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.512094][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.521065][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.533414][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.540690][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.550062][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.559001][ T4307] Bluetooth: hci0: command 0x040f tx timeout [ 83.569571][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.578987][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.589980][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.599660][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.658460][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.671922][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.693926][ T298] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.707590][ T298] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.717279][ T298] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.728850][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.853127][ T4321] [ 83.855495][ T4321] ====================================================== [ 83.862520][ T4321] WARNING: possible circular locking dependency detected [ 83.869565][ T4321] syzkaller #0 Not tainted [ 83.873983][ T4321] ------------------------------------------------------ [ 83.881089][ T4321] syz.0.17/4321 is trying to acquire lock: [ 83.886923][ T4321] ffff88802a86cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 83.898006][ T4321] [ 83.898006][ T4321] but task is already holding lock: [ 83.905374][ T4321] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 83.915048][ T4321] [ 83.915048][ T4321] which lock already depends on the new lock. [ 83.915048][ T4321] [ 83.925450][ T4321] [ 83.925450][ T4321] the existing dependency chain (in reverse order) is: [ 83.934468][ T4321] [ 83.934468][ T4321] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.942469][ T4321] __mutex_lock_common+0x1eb/0x2390 [ 83.948207][ T4321] mutex_lock_nested+0x17/0x20 [ 83.953500][ T4321] rfkill_register+0x33/0x8a0 [ 83.958714][ T4321] hci_register_dev+0x452/0x970 [ 83.964100][ T4321] vhci_create_device+0x32c/0x5c0 [ 83.969664][ T4321] vhci_write+0x391/0x450 [ 83.974532][ T4321] vfs_write+0x712/0xd00 [ 83.979311][ T4321] ksys_write+0x14d/0x250 [ 83.984174][ T4321] do_syscall_64+0x4c/0xa0 [ 83.989117][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.995544][ T4321] [ 83.995544][ T4321] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.003393][ T4321] __mutex_lock_common+0x1eb/0x2390 [ 84.009209][ T4321] mutex_lock_nested+0x17/0x20 [ 84.014503][ T4321] vhci_send_frame+0x88/0x100 [ 84.019716][ T4321] hci_send_frame+0x1a9/0x2e0 [ 84.024923][ T4321] hci_tx_work+0x9f9/0x1710 [ 84.029958][ T4321] process_one_work+0x863/0x1000 [ 84.035420][ T4321] worker_thread+0xaa8/0x12a0 [ 84.041065][ T4321] kthread+0x436/0x520 [ 84.045666][ T4321] ret_from_fork+0x1f/0x30 [ 84.050618][ T4321] [ 84.050618][ T4321] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.059836][ T4321] __flush_work+0xdd/0x1b0 [ 84.064793][ T4321] hci_dev_do_close+0x1e7/0x1030 [ 84.070263][ T4321] hci_unregister_dev+0x2d7/0x580 [ 84.075818][ T4321] vhci_release+0x73/0xc0 [ 84.080684][ T4321] __fput+0x234/0x930 [ 84.085215][ T4321] task_work_run+0x125/0x1a0 [ 84.090344][ T4321] do_exit+0x61e/0x20a0 [ 84.095032][ T4321] do_group_exit+0x12e/0x300 [ 84.100166][ T4321] get_signal+0x6ca/0x12c0 [ 84.105118][ T4321] arch_do_signal_or_restart+0xc1/0x1300 [ 84.111285][ T4321] exit_to_user_mode_loop+0x9e/0x130 [ 84.117111][ T4321] exit_to_user_mode_prepare+0xee/0x180 [ 84.123201][ T4321] syscall_exit_to_user_mode+0x16/0x40 [ 84.129194][ T4321] do_syscall_64+0x58/0xa0 [ 84.134143][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.140666][ T4321] [ 84.140666][ T4321] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.148339][ T4321] __mutex_lock_common+0x1eb/0x2390 [ 84.154089][ T4321] mutex_lock_nested+0x17/0x20 [ 84.159397][ T4321] bg_scan_update+0x44/0x3b0 [ 84.164525][ T4321] process_one_work+0x863/0x1000 [ 84.170000][ T4321] worker_thread+0xaa8/0x12a0 [ 84.175203][ T4321] kthread+0x436/0x520 [ 84.179795][ T4321] ret_from_fork+0x1f/0x30 [ 84.184753][ T4321] [ 84.184753][ T4321] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.194576][ T4321] __lock_acquire+0x2c33/0x7c60 [ 84.199961][ T4321] lock_acquire+0x197/0x3f0 [ 84.204992][ T4321] __flush_work+0xdd/0x1b0 [ 84.209942][ T4321] __cancel_work_timer+0x3ac/0x520 [ 84.215586][ T4321] hci_request_cancel_all+0xcc/0x300 [ 84.221415][ T4321] hci_dev_do_close+0x4e/0x1030 [ 84.226802][ T4321] hci_rfkill_set_block+0x10a/0x190 [ 84.232547][ T4321] rfkill_set_block+0x1c6/0x420 [ 84.237932][ T4321] rfkill_fop_write+0x458/0x560 [ 84.243401][ T4321] vfs_write+0x300/0xd00 [ 84.248173][ T4321] ksys_write+0x14d/0x250 [ 84.253034][ T4321] do_syscall_64+0x4c/0xa0 [ 84.258006][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.264433][ T4321] [ 84.264433][ T4321] other info that might help us debug this: [ 84.264433][ T4321] [ 84.274663][ T4321] Chain exists of: [ 84.274663][ T4321] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.274663][ T4321] [ 84.290414][ T4321] Possible unsafe locking scenario: [ 84.290414][ T4321] [ 84.297898][ T4321] CPU0 CPU1 [ 84.303421][ T4321] ---- ---- [ 84.308809][ T4321] lock(rfkill_global_mutex); [ 84.313595][ T4321] lock(&data->open_mutex); [ 84.320701][ T4321] lock(rfkill_global_mutex); [ 84.327981][ T4321] lock((work_completion)(&hdev->bg_scan_update)); [ 84.334569][ T4321] [ 84.334569][ T4321] *** DEADLOCK *** [ 84.334569][ T4321] [ 84.342705][ T4321] 1 lock held by syz.0.17/4321: [ 84.347547][ T4321] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.357749][ T4321] [ 84.357749][ T4321] stack backtrace: [ 84.363644][ T4321] CPU: 1 PID: 4321 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.370844][ T4321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 84.380902][ T4321] Call Trace: [ 84.384175][ T4321] [ 84.387101][ T4321] dump_stack_lvl+0x168/0x230 [ 84.391783][ T4321] ? load_image+0x3b0/0x3b0 [ 84.396290][ T4321] ? show_regs_print_info+0x20/0x20 [ 84.401493][ T4321] ? print_circular_bug+0x12b/0x1a0 [ 84.406781][ T4321] check_noncircular+0x274/0x310 [ 84.411734][ T4321] ? add_chain_block+0x940/0x940 [ 84.416679][ T4321] ? lockdep_lock+0xdc/0x1e0 [ 84.421273][ T4321] ? __lock_acquire+0x12d9/0x7c60 [ 84.426302][ T4321] ? lockdep_lock+0x1e0/0x1e0 [ 84.430980][ T4321] ? mark_lock+0x94/0x320 [ 84.435312][ T4321] __lock_acquire+0x2c33/0x7c60 [ 84.440168][ T4321] ? verify_lock_unused+0x140/0x140 [ 84.445370][ T4321] ? verify_lock_unused+0x140/0x140 [ 84.450597][ T4321] lock_acquire+0x197/0x3f0 [ 84.455102][ T4321] ? __flush_work+0xc1/0x1b0 [ 84.459694][ T4321] ? __lock_acquire+0x7c60/0x7c60 [ 84.464730][ T4321] ? read_lock_is_recursive+0x10/0x10 [ 84.470114][ T4321] ? start_flush_work+0x776/0x820 [ 84.475154][ T4321] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.481069][ T4321] ? _raw_spin_unlock+0x40/0x40 [ 84.485921][ T4321] __flush_work+0xdd/0x1b0 [ 84.490331][ T4321] ? __flush_work+0xc1/0x1b0 [ 84.494923][ T4321] ? flush_work+0x20/0x20 [ 84.499248][ T4321] ? try_to_grab_pending+0xf3/0x7e0 [ 84.504458][ T4321] ? lockdep_hardirqs_off+0x70/0x100 [ 84.509742][ T4321] ? mark_lock+0x94/0x320 [ 84.514079][ T4321] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 84.520059][ T4321] ? lock_chain_count+0x20/0x20 [ 84.524924][ T4321] ? mark_lock+0x94/0x320 [ 84.529259][ T4321] ? __cancel_work_timer+0x331/0x520 [ 84.534543][ T4321] __cancel_work_timer+0x3ac/0x520 [ 84.539652][ T4321] ? cancel_work_sync+0x20/0x20 [ 84.544499][ T4321] ? __cancel_work+0x1f4/0x2d0 [ 84.549258][ T4321] ? lockdep_hardirqs_on+0x94/0x140 [ 84.554454][ T4321] ? __cancel_work+0x26f/0x2d0 [ 84.559210][ T4321] ? cancel_work+0x20/0x20 [ 84.563623][ T4321] ? lock_chain_count+0x20/0x20 [ 84.568478][ T4321] hci_request_cancel_all+0xcc/0x300 [ 84.573791][ T4321] hci_dev_do_close+0x4e/0x1030 [ 84.578639][ T4321] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.584532][ T4321] ? _raw_spin_unlock+0x40/0x40 [ 84.589382][ T4321] hci_rfkill_set_block+0x10a/0x190 [ 84.594586][ T4321] ? rcu_lock_release+0x20/0x20 [ 84.599439][ T4321] rfkill_set_block+0x1c6/0x420 [ 84.604289][ T4321] rfkill_fop_write+0x458/0x560 [ 84.609136][ T4321] ? verify_lock_unused+0x140/0x140 [ 84.614333][ T4321] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.619267][ T4321] ? common_file_perm+0xc0/0x1c0 [ 84.624203][ T4321] ? fsnotify_perm+0x5d/0x560 [ 84.628880][ T4321] ? security_file_permission+0x75/0xa0 [ 84.634424][ T4321] ? rfkill_fop_read+0x4b0/0x4b0 [ 84.639361][ T4321] vfs_write+0x300/0xd00 [ 84.643609][ T4321] ? file_end_write+0x250/0x250 [ 84.648460][ T4321] ? __context_tracking_exit+0x4c/0x80 [ 84.653940][ T4321] ? __lock_acquire+0x7c60/0x7c60 [ 84.658971][ T4321] ? __fdget_pos+0x1e2/0x370 [ 84.663566][ T4321] ksys_write+0x14d/0x250 [ 84.667895][ T4321] ? __ia32_sys_read+0x80/0x80 [ 84.672658][ T4321] ? lockdep_hardirqs_on+0x94/0x140 [ 84.677857][ T4321] do_syscall_64+0x4c/0xa0 [ 84.682271][ T4321] ? clear_bhb_loop+0x30/0x80 [ 84.686945][ T4321] ? clear_bhb_loop+0x30/0x80 [ 84.691619][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.697519][ T4321] RIP: 0033:0x7f5fe9d87ec9 [ 84.701935][ T4321] 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 [ 84.721573][ T4321] RSP: 002b:00007fff377db6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.730024][ T4321] RAX: ffffffffffffffda RBX: 00007f5fe9fdefa0 RCX: 00007f5fe9d87ec9 [ 84.737990][ T4321] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 84.745956][ T4321] RBP: 00007f5fe9e0af91 R08: 0000000000000000 R09: 0000000000000000 [ 84.753923][ T4321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.761894][ T4321] R13: 00007f5fe9fdefa0 R14: 00007f5fe9fdefa0 R15: 0000000000000003 [ 84.769870][ T4321]