Warning: Permanently added '10.128.0.24' (ED25519) to the list of known hosts. 2026/05/29 11:07:52 parsed 1 programs [ 56.721413][ T4202] cgroup: Unknown subsys name 'net' [ 56.838583][ T4202] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 58.066820][ T4202] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.551143][ T4238] chnl_net:caif_netlink_parms(): no params data found [ 60.608993][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.616808][ T4238] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.625051][ T4238] device bridge_slave_0 entered promiscuous mode [ 60.635400][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.642614][ T4238] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.650911][ T4238] device bridge_slave_1 entered promiscuous mode [ 60.674748][ T4238] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.686073][ T4238] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.711658][ T4238] team0: Port device team_slave_0 added [ 60.719613][ T4238] team0: Port device team_slave_1 added [ 60.741707][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.748836][ T4238] 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. [ 60.775011][ T4238] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.788078][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.795248][ T4238] 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. [ 60.821177][ T4238] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.857394][ T4238] device hsr_slave_0 entered promiscuous mode [ 60.865325][ T4238] device hsr_slave_1 entered promiscuous mode [ 60.992225][ T4238] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.005046][ T4238] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.015132][ T4238] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.025115][ T4238] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.055525][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.062769][ T4238] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.070811][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.077982][ T4238] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.135566][ T4238] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.148552][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.158974][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.168634][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.177842][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.191718][ T4238] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.204700][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.217581][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.224690][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.242132][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.252124][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.259259][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.283342][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.296213][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.305386][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.333276][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.342845][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.366139][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.437331][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.445286][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.456645][ T4238] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.472900][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.490984][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.499687][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.508020][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.517703][ T4238] device veth0_vlan entered promiscuous mode [ 61.529354][ T4238] device veth1_vlan entered promiscuous mode [ 61.547404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.556483][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.568529][ T4238] device veth0_macvtap entered promiscuous mode [ 61.578016][ T4238] device veth1_macvtap entered promiscuous mode [ 61.605848][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.613368][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.621596][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.629810][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.639431][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.651466][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.660179][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.670021][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.691226][ T4238] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.700550][ T4238] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.710513][ T4238] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.719415][ T4238] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.814616][ T4238] syz-executor (4238) used greatest stack depth: 21040 bytes left [ 62.100401][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.110896][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.123067][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.151172][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.159217][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.167328][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/29 11:08:00 executed programs: 0 [ 63.486858][ T1541] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.579238][ T4300] chnl_net:caif_netlink_parms(): no params data found [ 63.613700][ T4300] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.620800][ T4300] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.628620][ T4300] device bridge_slave_0 entered promiscuous mode [ 63.637107][ T4300] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.644339][ T4300] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.651996][ T4300] device bridge_slave_1 entered promiscuous mode [ 63.669944][ T4300] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.681634][ T4300] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.700733][ T4300] team0: Port device team_slave_0 added [ 63.709297][ T4300] team0: Port device team_slave_1 added [ 63.728013][ T4300] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.735087][ T4300] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 63.761017][ T4300] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.773849][ T4300] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.780789][ T4300] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 63.807811][ T4300] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.834073][ T4300] device hsr_slave_0 entered promiscuous mode [ 63.840972][ T4300] device hsr_slave_1 entered promiscuous mode [ 63.847804][ T4300] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 63.855739][ T4300] Cannot create hsr debugfs directory [ 65.554103][ T23] Bluetooth: hci0: command 0x0409 tx timeout [ 67.099302][ T1541] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.188199][ T1541] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.238791][ T1541] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.644308][ T4334] Bluetooth: hci0: command 0x041b tx timeout [ 68.108506][ T4300] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.118137][ T4300] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.126935][ T4300] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.136641][ T4300] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.187215][ T4300] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.198545][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.206583][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.228718][ T4300] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.237848][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.246586][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.256398][ T1553] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.263609][ T1553] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.271341][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.285954][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.295426][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.304071][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.311127][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.340148][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.351631][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.362160][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.372348][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.382123][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.392836][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.402310][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.413410][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.424265][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.450700][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.459302][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.470618][ T4300] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.566036][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.573869][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.586562][ T4300] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.606071][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.614952][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.632280][ T4300] device veth0_vlan entered promiscuous mode [ 68.655966][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.665149][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.673394][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.681872][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.702362][ T4300] device veth1_vlan entered promiscuous mode [ 68.730522][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.740310][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.748720][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.759105][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.770809][ T4300] device veth0_macvtap entered promiscuous mode [ 68.782792][ T4300] device veth1_macvtap entered promiscuous mode [ 68.798751][ T1541] device hsr_slave_0 left promiscuous mode [ 68.806085][ T1541] device hsr_slave_1 left promiscuous mode [ 68.812393][ T1541] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.820372][ T1541] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.829151][ T1541] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.836743][ T1541] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.844765][ T1541] device bridge_slave_1 left promiscuous mode [ 68.851606][ T1541] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.865557][ T1541] device bridge_slave_0 left promiscuous mode [ 68.871754][ T1541] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.888166][ T1541] device veth1_macvtap left promiscuous mode [ 68.895240][ T1541] device veth0_macvtap left promiscuous mode [ 68.901279][ T1541] device veth1_vlan left promiscuous mode [ 68.907560][ T1541] device veth0_vlan left promiscuous mode [ 69.048677][ T1541] team0 (unregistering): Port device team_slave_1 removed [ 69.060876][ T1541] team0 (unregistering): Port device team_slave_0 removed [ 69.075436][ T1541] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.089416][ T1541] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.138095][ T1541] bond0 (unregistering): Released all slaves [ 69.182378][ T4300] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.191839][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.199957][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.208356][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.217026][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.230257][ T4300] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.238266][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.247438][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.260018][ T4300] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.270741][ T4300] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.279666][ T4300] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.289232][ T4300] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.357105][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.367347][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.375905][ T1553] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.410249][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.418628][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.426309][ T4361] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.516335][ T4362] [ 69.518695][ T4362] ====================================================== [ 69.525697][ T4362] WARNING: possible circular locking dependency detected [ 69.532704][ T4362] syzkaller #0 Not tainted [ 69.537096][ T4362] ------------------------------------------------------ [ 69.544090][ T4362] syz.0.17/4362 is trying to acquire lock: [ 69.549873][ T4362] ffff888019bccc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 69.560908][ T4362] [ 69.560908][ T4362] but task is already holding lock: [ 69.568249][ T4362] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 69.577883][ T4362] [ 69.577883][ T4362] which lock already depends on the new lock. [ 69.577883][ T4362] [ 69.588262][ T4362] [ 69.588262][ T4362] the existing dependency chain (in reverse order) is: [ 69.597265][ T4362] [ 69.597265][ T4362] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 69.605247][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 69.610962][ T4362] mutex_lock_nested+0x17/0x20 [ 69.616228][ T4362] rfkill_register+0x33/0x980 [ 69.621409][ T4362] hci_register_dev+0x452/0x970 [ 69.626767][ T4362] vhci_create_device+0x32c/0x5c0 [ 69.632296][ T4362] vhci_write+0x391/0x450 [ 69.637130][ T4362] vfs_write+0x745/0xd60 [ 69.641877][ T4362] ksys_write+0x152/0x260 [ 69.646716][ T4362] do_syscall_64+0x4c/0xa0 [ 69.651641][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.658038][ T4362] [ 69.658038][ T4362] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 69.665834][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 69.671542][ T4362] mutex_lock_nested+0x17/0x20 [ 69.676825][ T4362] vhci_send_frame+0x88/0x100 [ 69.682009][ T4362] hci_send_frame+0x1a9/0x2e0 [ 69.687192][ T4362] hci_tx_work+0x9f9/0x1710 [ 69.692893][ T4362] process_one_work+0x85f/0x1010 [ 69.698335][ T4362] worker_thread+0xaa6/0x1290 [ 69.703512][ T4362] kthread+0x436/0x520 [ 69.708082][ T4362] ret_from_fork+0x1f/0x30 [ 69.713000][ T4362] [ 69.713000][ T4362] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 69.722201][ T4362] __flush_work+0x116/0x210 [ 69.727296][ T4362] hci_dev_do_close+0x1e7/0x1030 [ 69.732833][ T4362] hci_unregister_dev+0x2d7/0x580 [ 69.738361][ T4362] vhci_release+0x73/0xc0 [ 69.743192][ T4362] __fput+0x234/0x930 [ 69.747675][ T4362] task_work_run+0x125/0x1a0 [ 69.752771][ T4362] do_exit+0x626/0x20c0 [ 69.757429][ T4362] do_group_exit+0x12e/0x300 [ 69.762518][ T4362] get_signal+0x6d6/0x12d0 [ 69.767433][ T4362] arch_do_signal_or_restart+0xe7/0x12c0 [ 69.773573][ T4362] exit_to_user_mode_loop+0x9e/0x130 [ 69.779364][ T4362] exit_to_user_mode_prepare+0xee/0x180 [ 69.785417][ T4362] syscall_exit_to_user_mode+0x16/0x40 [ 69.791379][ T4362] do_syscall_64+0x58/0xa0 [ 69.796298][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.802694][ T4362] [ 69.802694][ T4362] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 69.810315][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 69.816017][ T4362] mutex_lock_nested+0x17/0x20 [ 69.821289][ T4362] bg_scan_update+0x44/0x3b0 [ 69.826385][ T4362] process_one_work+0x85f/0x1010 [ 69.831831][ T4362] worker_thread+0xaa6/0x1290 [ 69.837011][ T4362] kthread+0x436/0x520 [ 69.841578][ T4362] ret_from_fork+0x1f/0x30 [ 69.846498][ T4362] [ 69.846498][ T4362] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 69.856293][ T4362] __lock_acquire+0x2c42/0x7d10 [ 69.861651][ T4362] lock_acquire+0x19e/0x400 [ 69.866657][ T4362] __flush_work+0x116/0x210 [ 69.871661][ T4362] __cancel_work_timer+0x3f4/0x560 [ 69.877273][ T4362] hci_request_cancel_all+0xcc/0x300 [ 69.883065][ T4362] hci_dev_do_close+0x4e/0x1030 [ 69.888420][ T4362] hci_rfkill_set_block+0x10a/0x190 [ 69.894124][ T4362] rfkill_set_block+0x1c9/0x3d0 [ 69.899478][ T4362] rfkill_fop_write+0x452/0x560 [ 69.904828][ T4362] vfs_write+0x30b/0xd60 [ 69.909574][ T4362] ksys_write+0x152/0x260 [ 69.914408][ T4362] do_syscall_64+0x4c/0xa0 [ 69.919329][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 69.925723][ T4362] [ 69.925723][ T4362] other info that might help us debug this: [ 69.925723][ T4362] [ 69.935931][ T4362] Chain exists of: [ 69.935931][ T4362] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 69.935931][ T4362] [ 69.951635][ T4362] Possible unsafe locking scenario: [ 69.951635][ T4362] [ 69.959068][ T4362] CPU0 CPU1 [ 69.964415][ T4362] ---- ---- [ 69.969760][ T4362] lock(rfkill_global_mutex); [ 69.974505][ T4362] lock(&data->open_mutex); [ 69.981595][ T4362] lock(rfkill_global_mutex); [ 69.988856][ T4362] lock((work_completion)(&hdev->bg_scan_update)); [ 69.995424][ T4362] [ 69.995424][ T4362] *** DEADLOCK *** [ 69.995424][ T4362] [ 70.003553][ T4362] 1 lock held by syz.0.17/4362: [ 70.008387][ T4362] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 70.018542][ T4362] [ 70.018542][ T4362] stack backtrace: [ 70.024437][ T4362] CPU: 1 PID: 4362 Comm: syz.0.17 Not tainted syzkaller #0 [ 70.031640][ T4362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 70.041694][ T4362] Call Trace: [ 70.044964][ T4362] [ 70.047880][ T4362] dump_stack_lvl+0x188/0x250 [ 70.052541][ T4362] ? load_image+0x400/0x400 [ 70.057028][ T4362] ? show_regs_print_info+0x20/0x20 [ 70.062209][ T4362] ? print_circular_bug+0x12b/0x1a0 [ 70.067392][ T4362] check_noncircular+0x296/0x330 [ 70.072309][ T4362] ? look_up_lock_class+0x71/0x110 [ 70.077404][ T4362] ? add_chain_block+0x940/0x940 [ 70.082329][ T4362] ? lockdep_lock+0x15c/0x1f0 [ 70.086993][ T4362] ? __lock_acquire+0x12e8/0x7d10 [ 70.092003][ T4362] ? mark_lock+0x94/0x320 [ 70.096314][ T4362] ? _find_first_zero_bit+0xce/0xf0 [ 70.101502][ T4362] __lock_acquire+0x2c42/0x7d10 [ 70.106343][ T4362] ? verify_lock_unused+0x140/0x140 [ 70.111536][ T4362] ? verify_lock_unused+0x140/0x140 [ 70.116721][ T4362] ? mark_lock+0x94/0x320 [ 70.121043][ T4362] lock_acquire+0x19e/0x400 [ 70.125536][ T4362] ? __flush_work+0xfa/0x210 [ 70.130113][ T4362] ? __lock_acquire+0x7d10/0x7d10 [ 70.135123][ T4362] ? read_lock_is_recursive+0x10/0x10 [ 70.140480][ T4362] ? start_flush_work+0x776/0x820 [ 70.145490][ T4362] __flush_work+0x116/0x210 [ 70.149975][ T4362] ? __flush_work+0xfa/0x210 [ 70.154550][ T4362] ? flush_work+0x20/0x20 [ 70.158860][ T4362] ? try_to_grab_pending+0xfa/0x7f0 [ 70.164039][ T4362] ? mark_lock+0x94/0x320 [ 70.168349][ T4362] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 70.174314][ T4362] ? lock_chain_count+0x20/0x20 [ 70.179151][ T4362] ? mark_lock+0x94/0x320 [ 70.183464][ T4362] ? __cancel_work_timer+0x36a/0x560 [ 70.188737][ T4362] __cancel_work_timer+0x3f4/0x560 [ 70.193835][ T4362] ? cancel_work_sync+0x20/0x20 [ 70.198667][ T4362] ? __cancel_work+0x1f9/0x2e0 [ 70.203415][ T4362] ? lockdep_hardirqs_on+0x94/0x140 [ 70.208612][ T4362] ? __cancel_work+0x27b/0x2e0 [ 70.213359][ T4362] ? cancel_work+0x20/0x20 [ 70.217759][ T4362] ? lock_chain_count+0x20/0x20 [ 70.222592][ T4362] hci_request_cancel_all+0xcc/0x300 [ 70.227862][ T4362] hci_dev_do_close+0x4e/0x1030 [ 70.232697][ T4362] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 70.238573][ T4362] ? _raw_spin_unlock+0x40/0x40 [ 70.243404][ T4362] hci_rfkill_set_block+0x10a/0x190 [ 70.248591][ T4362] ? rcu_lock_release+0x20/0x20 [ 70.253429][ T4362] rfkill_set_block+0x1c9/0x3d0 [ 70.258270][ T4362] rfkill_fop_write+0x452/0x560 [ 70.263101][ T4362] ? rfkill_fop_read+0x520/0x520 [ 70.268015][ T4362] ? common_file_perm+0xc0/0x1c0 [ 70.272941][ T4362] ? fsnotify_perm+0x5d/0x560 [ 70.277604][ T4362] ? security_file_permission+0x75/0xa0 [ 70.283133][ T4362] ? rfkill_fop_read+0x520/0x520 [ 70.288055][ T4362] vfs_write+0x30b/0xd60 [ 70.292285][ T4362] ? file_end_write+0x250/0x250 [ 70.297116][ T4362] ? __context_tracking_exit+0x4c/0x80 [ 70.302558][ T4362] ? __lock_acquire+0x7d10/0x7d10 [ 70.307566][ T4362] ? __fdget_pos+0x1e2/0x370 [ 70.312138][ T4362] ksys_write+0x152/0x260 [ 70.316449][ T4362] ? __ia32_sys_read+0x80/0x80 [ 70.321197][ T4362] ? lockdep_hardirqs_on+0x94/0x140 [ 70.326377][ T4362] do_syscall_64+0x4c/0xa0 [ 70.330779][ T4362] ? clear_bhb_loop+0x30/0x80 [ 70.335439][ T4362] ? clear_bhb_loop+0x30/0x80 [ 70.340102][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 70.345987][ T4362] RIP: 0033:0x7f728e478e59 [ 70.350389][ T4362] 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 [ 70.369980][ T4362] RSP: 002b:00007ffda23a59e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 70.378381][ T4362] RAX: ffffffffffffffda RBX: 00007f728e6f1fa0 RCX: 00007f728e478e59 [ 70.386341][ T4362] RDX: 0000000000000008 RSI: 0000200000001280 RDI: 0000000000000003 [ 70.394296][ T4362] RBP: 00007f728e50ed6f R08: 0000000000000000 R09: 0000000000000000 [ 70.402259][ T4362] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 70.410210][ T4362] R13: 00007f728e6f1fac R14: 00007f728e6f1fa0 R15: 00007f728e6f1fa0 [ 70.418174][ T4362] [ 70.424392][ T4332] Bluetooth: hci0: command 0x040f tx timeout