Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. 2026/03/07 22:19:03 parsed 1 programs [ 60.937009][ T4189] cgroup: Unknown subsys name 'net' [ 61.069584][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 62.675354][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 64.509933][ T3103] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.518284][ T3103] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.533424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.551081][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.559051][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.569774][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.894680][ T4243] chnl_net:caif_netlink_parms(): no params data found [ 65.962457][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.970102][ T4243] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.979052][ T4243] device bridge_slave_0 entered promiscuous mode [ 65.989118][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.996712][ T4243] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.005574][ T4243] device bridge_slave_1 entered promiscuous mode [ 66.027146][ T4243] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.039429][ T4243] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.066283][ T4243] team0: Port device team_slave_0 added [ 66.075918][ T4243] team0: Port device team_slave_1 added [ 66.098719][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.106034][ T4243] 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. [ 66.133203][ T4243] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.146473][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.153441][ T4243] 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. [ 66.180172][ T4243] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.210586][ T4243] device hsr_slave_0 entered promiscuous mode [ 66.217585][ T4243] device hsr_slave_1 entered promiscuous mode [ 66.362017][ T4243] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.449983][ T4243] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.464213][ T4243] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.476295][ T4243] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.508318][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.515514][ T4243] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.523514][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.530860][ T4243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.575464][ T4243] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.588757][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.598398][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.607193][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.615754][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.648192][ T4243] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.659274][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.667946][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.675140][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.691279][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.700423][ T3103] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.707916][ T3103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.748080][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.757223][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.770165][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.786152][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.795230][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.805893][ T4243] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.942246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.950861][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.964483][ T4243] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.981775][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.992870][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.032508][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.042154][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.050866][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.058838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.071088][ T4243] device veth0_vlan entered promiscuous mode [ 67.107605][ T4243] device veth1_vlan entered promiscuous mode [ 67.127000][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.135766][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.145307][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.155602][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.168818][ T4243] device veth0_macvtap entered promiscuous mode [ 67.192800][ T4243] device veth1_macvtap entered promiscuous mode [ 67.208807][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.217186][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.226385][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.236876][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.245829][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.257045][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.267486][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.276066][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.286731][ T4243] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.296402][ T4243] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.306532][ T4243] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.315729][ T4243] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/03/07 22:19:12 executed programs: 0 [ 68.793263][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 68.863022][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.873084][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.882351][ T4290] device bridge_slave_0 entered promiscuous mode [ 68.894380][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.901651][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.912556][ T4290] device bridge_slave_1 entered promiscuous mode [ 68.938759][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.950709][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.980144][ T4290] team0: Port device team_slave_0 added [ 68.988502][ T4290] team0: Port device team_slave_1 added [ 69.011019][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.018543][ T4290] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 69.045585][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.058726][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.066913][ T4290] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 69.093819][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.126443][ T4290] device hsr_slave_0 entered promiscuous mode [ 69.133453][ T4290] device hsr_slave_1 entered promiscuous mode [ 69.140847][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.148832][ T4290] Cannot create hsr debugfs directory [ 69.242642][ T4290] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.674655][ T4203] Bluetooth: hci0: command 0x0409 tx timeout [ 71.636005][ T1429] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.642513][ T1429] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.029684][ T4290] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.070159][ T4290] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.130824][ T4290] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.252915][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.262314][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.271655][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.291383][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.339918][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.357605][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.367130][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.377621][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.395219][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.404741][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.413418][ T3103] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.420684][ T3103] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.428793][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.442183][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.451348][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.460336][ T3103] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.467477][ T3103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.492289][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.504316][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.518416][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.528049][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.538036][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.561504][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.570167][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.581392][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.591874][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.613241][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.622373][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.632715][ T4290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.700668][ T154] device hsr_slave_0 left promiscuous mode [ 72.709918][ T154] device hsr_slave_1 left promiscuous mode [ 72.718217][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.728836][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.737446][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.745472][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.753031][ T154] device bridge_slave_1 left promiscuous mode [ 72.754293][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 72.760357][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.779025][ T154] device bridge_slave_0 left promiscuous mode [ 72.786740][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.801870][ T154] device veth1_macvtap left promiscuous mode [ 72.809153][ T154] device veth0_macvtap left promiscuous mode [ 72.815842][ T154] device veth1_vlan left promiscuous mode [ 72.821867][ T154] device veth0_vlan left promiscuous mode [ 72.965745][ T154] team0 (unregistering): Port device team_slave_1 removed [ 72.982722][ T154] team0 (unregistering): Port device team_slave_0 removed [ 72.997620][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 73.012422][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.070017][ T154] bond0 (unregistering): Released all slaves [ 73.117510][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.125192][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.137516][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.153385][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.163135][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.183041][ T4290] device veth0_vlan entered promiscuous mode [ 73.191157][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.199987][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.210268][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.219901][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.232352][ T4290] device veth1_vlan entered promiscuous mode [ 73.267023][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.276766][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.286363][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.295215][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.306683][ T4290] device veth0_macvtap entered promiscuous mode [ 73.316625][ T4290] device veth1_macvtap entered promiscuous mode [ 73.335143][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.346614][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.357504][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.366227][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.374923][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.384521][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.393163][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.403278][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.414917][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.424299][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.433032][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.442294][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.512391][ T586] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.527351][ T586] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.545634][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.556631][ T586] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.565326][ T586] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.577779][ T586] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.696637][ T4307] [ 73.699087][ T4307] ====================================================== [ 73.706144][ T4307] WARNING: possible circular locking dependency detected [ 73.713550][ T4307] syzkaller #0 Not tainted [ 73.718330][ T4307] ------------------------------------------------------ [ 73.725532][ T4307] syz.0.17/4307 is trying to acquire lock: [ 73.731332][ T4307] ffff888029830c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 73.742469][ T4307] [ 73.742469][ T4307] but task is already holding lock: [ 73.749912][ T4307] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 73.759684][ T4307] [ 73.759684][ T4307] which lock already depends on the new lock. [ 73.759684][ T4307] [ 73.770447][ T4307] [ 73.770447][ T4307] the existing dependency chain (in reverse order) is: [ 73.779468][ T4307] [ 73.779468][ T4307] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 73.787570][ T4307] __mutex_lock_common+0x1e3/0x2400 [ 73.793571][ T4307] mutex_lock_nested+0x17/0x20 [ 73.798960][ T4307] rfkill_register+0x33/0x8a0 [ 73.804279][ T4307] hci_register_dev+0x452/0x970 [ 73.809868][ T4307] vhci_create_device+0x32c/0x5c0 [ 73.815746][ T4307] vhci_write+0x391/0x450 [ 73.820625][ T4307] vfs_write+0x745/0xd60 [ 73.825421][ T4307] ksys_write+0x152/0x260 [ 73.830299][ T4307] do_syscall_64+0x4c/0xa0 [ 73.835261][ T4307] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.841699][ T4307] [ 73.841699][ T4307] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 73.849915][ T4307] __mutex_lock_common+0x1e3/0x2400 [ 73.855667][ T4307] mutex_lock_nested+0x17/0x20 [ 73.860973][ T4307] vhci_send_frame+0x88/0x100 [ 73.866188][ T4307] hci_send_frame+0x1a9/0x2e0 [ 73.871747][ T4307] hci_tx_work+0x9f9/0x1710 [ 73.876883][ T4307] process_one_work+0x85f/0x1010 [ 73.883012][ T4307] worker_thread+0xaa6/0x1290 [ 73.888312][ T4307] kthread+0x436/0x520 [ 73.892928][ T4307] ret_from_fork+0x1f/0x30 [ 73.897976][ T4307] [ 73.897976][ T4307] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 73.907473][ T4307] __flush_work+0x116/0x210 [ 73.912608][ T4307] hci_dev_do_close+0x1e7/0x1030 [ 73.918391][ T4307] hci_unregister_dev+0x2d7/0x580 [ 73.923960][ T4307] vhci_release+0x73/0xc0 [ 73.928822][ T4307] __fput+0x234/0x930 [ 73.933428][ T4307] task_work_run+0x125/0x1a0 [ 73.938548][ T4307] do_exit+0x626/0x20c0 [ 73.943235][ T4307] do_group_exit+0x12e/0x300 [ 73.948538][ T4307] get_signal+0x6ca/0x12c0 [ 73.953687][ T4307] arch_do_signal_or_restart+0xe7/0x12c0 [ 73.959878][ T4307] exit_to_user_mode_loop+0x9e/0x130 [ 73.965715][ T4307] exit_to_user_mode_prepare+0xee/0x180 [ 73.971972][ T4307] syscall_exit_to_user_mode+0x16/0x40 [ 73.978082][ T4307] do_syscall_64+0x58/0xa0 [ 73.983122][ T4307] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.989559][ T4307] [ 73.989559][ T4307] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 73.997235][ T4307] __mutex_lock_common+0x1e3/0x2400 [ 74.003100][ T4307] mutex_lock_nested+0x17/0x20 [ 74.008701][ T4307] bg_scan_update+0x44/0x3b0 [ 74.014011][ T4307] process_one_work+0x85f/0x1010 [ 74.019521][ T4307] worker_thread+0xaa6/0x1290 [ 74.024919][ T4307] kthread+0x436/0x520 [ 74.029527][ T4307] ret_from_fork+0x1f/0x30 [ 74.034584][ T4307] [ 74.034584][ T4307] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 74.044747][ T4307] __lock_acquire+0x2c42/0x7d10 [ 74.050131][ T4307] lock_acquire+0x19e/0x400 [ 74.055155][ T4307] __flush_work+0x116/0x210 [ 74.060181][ T4307] __cancel_work_timer+0x3f4/0x560 [ 74.065904][ T4307] hci_request_cancel_all+0xcc/0x300 [ 74.071709][ T4307] hci_dev_do_close+0x4e/0x1030 [ 74.077076][ T4307] hci_rfkill_set_block+0x10a/0x190 [ 74.082943][ T4307] rfkill_set_block+0x1c6/0x420 [ 74.088436][ T4307] rfkill_fop_write+0x452/0x560 [ 74.093902][ T4307] vfs_write+0x30b/0xd60 [ 74.098852][ T4307] ksys_write+0x152/0x260 [ 74.103697][ T4307] do_syscall_64+0x4c/0xa0 [ 74.108632][ T4307] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.115046][ T4307] [ 74.115046][ T4307] other info that might help us debug this: [ 74.115046][ T4307] [ 74.125439][ T4307] Chain exists of: [ 74.125439][ T4307] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 74.125439][ T4307] [ 74.141337][ T4307] Possible unsafe locking scenario: [ 74.141337][ T4307] [ 74.148968][ T4307] CPU0 CPU1 [ 74.154439][ T4307] ---- ---- [ 74.160075][ T4307] lock(rfkill_global_mutex); [ 74.164925][ T4307] lock(&data->open_mutex); [ 74.172033][ T4307] lock(rfkill_global_mutex); [ 74.179310][ T4307] lock((work_completion)(&hdev->bg_scan_update)); [ 74.185899][ T4307] [ 74.185899][ T4307] *** DEADLOCK *** [ 74.185899][ T4307] [ 74.194120][ T4307] 1 lock held by syz.0.17/4307: [ 74.199142][ T4307] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 74.209615][ T4307] [ 74.209615][ T4307] stack backtrace: [ 74.215584][ T4307] CPU: 1 PID: 4307 Comm: syz.0.17 Not tainted syzkaller #0 [ 74.222788][ T4307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 74.233195][ T4307] Call Trace: [ 74.236561][ T4307] [ 74.239761][ T4307] dump_stack_lvl+0x188/0x250 [ 74.244534][ T4307] ? load_image+0x400/0x400 [ 74.249231][ T4307] ? show_regs_print_info+0x20/0x20 [ 74.254631][ T4307] ? print_circular_bug+0x12b/0x1a0 [ 74.260216][ T4307] check_noncircular+0x296/0x330 [ 74.265175][ T4307] ? look_up_lock_class+0x71/0x110 [ 74.270400][ T4307] ? add_chain_block+0x940/0x940 [ 74.275521][ T4307] ? lockdep_lock+0xf1/0x1f0 [ 74.280435][ T4307] ? __lock_acquire+0x12e8/0x7d10 [ 74.285551][ T4307] ? mark_lock+0x94/0x320 [ 74.289942][ T4307] __lock_acquire+0x2c42/0x7d10 [ 74.294801][ T4307] ? verify_lock_unused+0x140/0x140 [ 74.300002][ T4307] ? verify_lock_unused+0x140/0x140 [ 74.305461][ T4307] ? mark_lock+0x94/0x320 [ 74.309886][ T4307] lock_acquire+0x19e/0x400 [ 74.314668][ T4307] ? __flush_work+0xfa/0x210 [ 74.319489][ T4307] ? __lock_acquire+0x7d10/0x7d10 [ 74.324624][ T4307] ? read_lock_is_recursive+0x10/0x10 [ 74.330213][ T4307] ? start_flush_work+0x776/0x820 [ 74.335391][ T4307] __flush_work+0x116/0x210 [ 74.339896][ T4307] ? __flush_work+0xfa/0x210 [ 74.344487][ T4307] ? flush_work+0x20/0x20 [ 74.348824][ T4307] ? try_to_grab_pending+0xfa/0x7f0 [ 74.354123][ T4307] ? mark_lock+0x94/0x320 [ 74.358719][ T4307] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 74.365228][ T4307] ? lock_chain_count+0x20/0x20 [ 74.370160][ T4307] ? mark_lock+0x94/0x320 [ 74.374482][ T4307] ? __cancel_work_timer+0x36a/0x560 [ 74.379771][ T4307] __cancel_work_timer+0x3f4/0x560 [ 74.384890][ T4307] ? cancel_work_sync+0x20/0x20 [ 74.389822][ T4307] ? __cancel_work+0x1f9/0x2e0 [ 74.394780][ T4307] ? lockdep_hardirqs_on+0x94/0x140 [ 74.400127][ T4307] ? __cancel_work+0x27b/0x2e0 [ 74.404889][ T4307] ? cancel_work+0x20/0x20 [ 74.409316][ T4307] ? lock_chain_count+0x20/0x20 [ 74.414303][ T4307] hci_request_cancel_all+0xcc/0x300 [ 74.419614][ T4307] hci_dev_do_close+0x4e/0x1030 [ 74.424762][ T4307] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 74.430747][ T4307] ? _raw_spin_unlock+0x40/0x40 [ 74.435806][ T4307] hci_rfkill_set_block+0x10a/0x190 [ 74.441003][ T4307] ? rcu_lock_release+0x20/0x20 [ 74.446114][ T4307] rfkill_set_block+0x1c6/0x420 [ 74.451227][ T4307] rfkill_fop_write+0x452/0x560 [ 74.456076][ T4307] ? rfkill_fop_read+0x4d0/0x4d0 [ 74.461015][ T4307] ? common_file_perm+0x110/0x1c0 [ 74.466124][ T4307] ? fsnotify_perm+0x5d/0x560 [ 74.470848][ T4307] ? security_file_permission+0x75/0xa0 [ 74.476479][ T4307] ? rfkill_fop_read+0x4d0/0x4d0 [ 74.481416][ T4307] vfs_write+0x30b/0xd60 [ 74.485832][ T4307] ? file_end_write+0x250/0x250 [ 74.490762][ T4307] ? __context_tracking_exit+0x4c/0x80 [ 74.496254][ T4307] ? __lock_acquire+0x7d10/0x7d10 [ 74.501297][ T4307] ? __fdget_pos+0x1e2/0x370 [ 74.506077][ T4307] ksys_write+0x152/0x260 [ 74.510412][ T4307] ? __ia32_sys_read+0x80/0x80 [ 74.515259][ T4307] ? lockdep_hardirqs_on+0x94/0x140 [ 74.520543][ T4307] do_syscall_64+0x4c/0xa0 [ 74.525831][ T4307] ? clear_bhb_loop+0x30/0x80 [ 74.530503][ T4307] ? clear_bhb_loop+0x30/0x80 [ 74.535313][ T4307] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 74.541205][ T4307] RIP: 0033:0x7f82c885e799 [ 74.545800][ T4307] 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 [ 74.565967][ T4307] RSP: 002b:00007ffd28539888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.574572][ T4307] RAX: ffffffffffffffda RBX: 00007f82c8ad7fa0 RCX: 00007f82c885e799 [ 74.582540][ T4307] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 74.590768][ T4307] RBP: 00007f82c88f4bd9 R08: 0000000000000000 R09: 0000000000000000 [ 74.598740][ T4307] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.606705][ T4307] R13: 00007f82c8ad7fac R14: 00007f82c8ad7fa0 R15: 00007f82c8ad7fa0 [ 74.614676][ T4307]