Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. 2026/04/26 10:17:16 parsed 1 programs [ 66.800846][ T4189] cgroup: Unknown subsys name 'net' [ 66.969881][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.470376][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.607881][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.621983][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.647979][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.660262][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.669536][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.679133][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.558749][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.565373][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.021419][ T155] ODEBUG: Out of memory. ODEBUG disabled [ 72.034041][ T4247] chnl_net:caif_netlink_parms(): no params data found [ 72.098463][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.111953][ T4247] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.120593][ T4247] device bridge_slave_0 entered promiscuous mode [ 72.145247][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.152459][ T4247] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.162338][ T4247] device bridge_slave_1 entered promiscuous mode [ 72.197737][ T4247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.210143][ T4247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.247399][ T4247] team0: Port device team_slave_0 added [ 72.256396][ T4247] team0: Port device team_slave_1 added [ 72.277952][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.285239][ T4247] 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. [ 72.311777][ T4247] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.329194][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.336385][ T4247] 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. [ 72.363797][ T4247] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.391884][ T4247] device hsr_slave_0 entered promiscuous mode [ 72.399157][ T4247] device hsr_slave_1 entered promiscuous mode [ 72.480136][ T4247] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.490660][ T4247] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.500879][ T4247] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.510486][ T4247] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.529916][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.539264][ T4247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.547214][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.554518][ T4247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.593344][ T4247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.606889][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.617143][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.625354][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.633512][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.648063][ T4247] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.672173][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.682200][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.689426][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.701144][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.710767][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.718216][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.755873][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.765149][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.778208][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.805642][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.817844][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.828338][ T4247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.920261][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.928317][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.944844][ T4247] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.971232][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.012952][ T4247] device veth0_vlan entered promiscuous mode [ 73.020838][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.029646][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.038147][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.049758][ T4247] device veth1_vlan entered promiscuous mode [ 73.091618][ T4247] device veth0_macvtap entered promiscuous mode [ 73.099780][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.108905][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.119628][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.130937][ T4247] device veth1_macvtap entered promiscuous mode [ 73.157959][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.167294][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.175930][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.186042][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.198020][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.207338][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.216312][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.241973][ T4247] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.251399][ T4247] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.260421][ T4247] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.269319][ T4247] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/26 10:17:25 executed programs: 0 [ 74.776703][ T4294] chnl_net:caif_netlink_parms(): no params data found [ 74.826510][ T4294] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.834256][ T4294] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.842521][ T4294] device bridge_slave_0 entered promiscuous mode [ 74.853143][ T4294] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.861187][ T4294] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.869358][ T4294] device bridge_slave_1 entered promiscuous mode [ 74.892018][ T4294] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.905381][ T4294] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.931794][ T4294] team0: Port device team_slave_0 added [ 74.940678][ T4294] team0: Port device team_slave_1 added [ 74.962720][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.970722][ T4294] 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. [ 74.998032][ T4294] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.014136][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.021585][ T4294] 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. [ 75.049307][ T4294] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.091515][ T4294] device hsr_slave_0 entered promiscuous mode [ 75.098566][ T4294] device hsr_slave_1 entered promiscuous mode [ 75.105897][ T4294] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.116218][ T4294] Cannot create hsr debugfs directory [ 75.207667][ T4294] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.674816][ T4268] Bluetooth: hci0: command 0x0409 tx timeout [ 78.754251][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 78.879884][ T4294] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.948967][ T4294] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.020430][ T4294] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.122153][ T4294] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.132146][ T4294] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.141621][ T4294] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.151331][ T4294] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.209925][ T4294] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.225837][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.235041][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.246209][ T4294] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.265093][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.274293][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.282807][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.290199][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.301017][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.329792][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.340782][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.350235][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.357613][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.369069][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.380363][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.406673][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.416918][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.430726][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.438627][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.448050][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.471918][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.481022][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.492920][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.503089][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.513249][ T4294] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.600328][ T155] device hsr_slave_0 left promiscuous mode [ 79.610406][ T155] device hsr_slave_1 left promiscuous mode [ 79.617600][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.628190][ T155] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.637422][ T155] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.645812][ T155] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.655957][ T155] device bridge_slave_1 left promiscuous mode [ 79.663089][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.678363][ T155] device bridge_slave_0 left promiscuous mode [ 79.685210][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.702132][ T155] device veth1_macvtap left promiscuous mode [ 79.709517][ T155] device veth0_macvtap left promiscuous mode [ 79.716570][ T155] device veth1_vlan left promiscuous mode [ 79.722783][ T155] device veth0_vlan left promiscuous mode [ 79.857130][ T155] team0 (unregistering): Port device team_slave_1 removed [ 79.871219][ T155] team0 (unregistering): Port device team_slave_0 removed [ 79.886621][ T155] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.900445][ T155] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.951097][ T155] bond0 (unregistering): Released all slaves [ 80.025105][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.032666][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.046682][ T4294] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.064163][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.073291][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.097465][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.107422][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.121490][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.131387][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.139566][ T4294] device veth0_vlan entered promiscuous mode [ 80.152649][ T4294] device veth1_vlan entered promiscuous mode [ 80.176400][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.185839][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.196165][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.206616][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.218952][ T4294] device veth0_macvtap entered promiscuous mode [ 80.228697][ T4294] device veth1_macvtap entered promiscuous mode [ 80.244755][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.252854][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.262122][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.270690][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.281261][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.294562][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.306132][ T4294] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.316781][ T4294] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.326295][ T4294] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.335390][ T4294] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.346438][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.355922][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.409922][ T1265] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.419209][ T1265] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.427719][ T1265] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.449724][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.460335][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.469355][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.530631][ T4309] [ 80.533316][ T4309] ====================================================== [ 80.540867][ T4309] WARNING: possible circular locking dependency detected [ 80.548519][ T4309] syzkaller #0 Not tainted [ 80.553508][ T4309] ------------------------------------------------------ [ 80.561228][ T4309] syz.0.17/4309 is trying to acquire lock: [ 80.567477][ T4309] ffff888073a50c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 80.579081][ T4309] [ 80.579081][ T4309] but task is already holding lock: [ 80.587873][ T4309] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.597827][ T4309] [ 80.597827][ T4309] which lock already depends on the new lock. [ 80.597827][ T4309] [ 80.609860][ T4309] [ 80.609860][ T4309] the existing dependency chain (in reverse order) is: [ 80.619767][ T4309] [ 80.619767][ T4309] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.629171][ T4309] __mutex_lock_common+0x1e3/0x2400 [ 80.635107][ T4309] mutex_lock_nested+0x17/0x20 [ 80.640520][ T4309] rfkill_register+0x33/0x980 [ 80.645879][ T4309] hci_register_dev+0x452/0x970 [ 80.652006][ T4309] vhci_create_device+0x32c/0x5c0 [ 80.658127][ T4309] vhci_write+0x391/0x450 [ 80.663477][ T4309] vfs_write+0x745/0xd60 [ 80.668602][ T4309] ksys_write+0x152/0x260 [ 80.673836][ T4309] do_syscall_64+0x4c/0xa0 [ 80.679257][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.686154][ T4309] [ 80.686154][ T4309] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.694224][ T4309] __mutex_lock_common+0x1e3/0x2400 [ 80.700247][ T4309] mutex_lock_nested+0x17/0x20 [ 80.705753][ T4309] vhci_send_frame+0x88/0x100 [ 80.711438][ T4309] hci_send_frame+0x1a9/0x2e0 [ 80.716948][ T4309] hci_tx_work+0x9f9/0x1710 [ 80.722081][ T4309] process_one_work+0x85f/0x1010 [ 80.727652][ T4309] worker_thread+0xaa6/0x1290 [ 80.733069][ T4309] kthread+0x436/0x520 [ 80.737684][ T4309] ret_from_fork+0x1f/0x30 [ 80.742668][ T4309] [ 80.742668][ T4309] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.752087][ T4309] __flush_work+0x116/0x210 [ 80.757627][ T4309] hci_dev_do_close+0x1e7/0x1030 [ 80.764326][ T4309] hci_unregister_dev+0x2d7/0x580 [ 80.770080][ T4309] vhci_release+0x73/0xc0 [ 80.775486][ T4309] __fput+0x234/0x930 [ 80.780431][ T4309] task_work_run+0x125/0x1a0 [ 80.785552][ T4309] do_exit+0x626/0x20c0 [ 80.790345][ T4309] do_group_exit+0x12e/0x300 [ 80.795994][ T4309] get_signal+0x6ca/0x12c0 [ 80.801229][ T4309] arch_do_signal_or_restart+0xe7/0x12c0 [ 80.807479][ T4309] exit_to_user_mode_loop+0x9e/0x130 [ 80.814587][ T4309] exit_to_user_mode_prepare+0xee/0x180 [ 80.821404][ T4309] syscall_exit_to_user_mode+0x16/0x40 [ 80.828135][ T4309] do_syscall_64+0x58/0xa0 [ 80.833272][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.834788][ T1107] Bluetooth: hci0: command 0x040f tx timeout [ 80.839882][ T4309] [ 80.839882][ T4309] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 80.854295][ T4309] __mutex_lock_common+0x1e3/0x2400 [ 80.860246][ T4309] mutex_lock_nested+0x17/0x20 [ 80.866150][ T4309] bg_scan_update+0x44/0x3b0 [ 80.871373][ T4309] process_one_work+0x85f/0x1010 [ 80.877746][ T4309] worker_thread+0xaa6/0x1290 [ 80.883319][ T4309] kthread+0x436/0x520 [ 80.888088][ T4309] ret_from_fork+0x1f/0x30 [ 80.893469][ T4309] [ 80.893469][ T4309] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 80.903936][ T4309] __lock_acquire+0x2c42/0x7d10 [ 80.909308][ T4309] lock_acquire+0x19e/0x400 [ 80.914676][ T4309] __flush_work+0x116/0x210 [ 80.919725][ T4309] __cancel_work_timer+0x3f4/0x560 [ 80.925523][ T4309] hci_request_cancel_all+0xcc/0x300 [ 80.931615][ T4309] hci_dev_do_close+0x4e/0x1030 [ 80.937327][ T4309] hci_rfkill_set_block+0x10a/0x190 [ 80.943133][ T4309] rfkill_set_block+0x1c9/0x3d0 [ 80.948540][ T4309] rfkill_fop_write+0x2e7/0x560 [ 80.954007][ T4309] vfs_write+0x30b/0xd60 [ 80.959052][ T4309] ksys_write+0x152/0x260 [ 80.964433][ T4309] do_syscall_64+0x4c/0xa0 [ 80.969639][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.976319][ T4309] [ 80.976319][ T4309] other info that might help us debug this: [ 80.976319][ T4309] [ 80.987693][ T4309] Chain exists of: [ 80.987693][ T4309] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 80.987693][ T4309] [ 81.003681][ T4309] Possible unsafe locking scenario: [ 81.003681][ T4309] [ 81.011388][ T4309] CPU0 CPU1 [ 81.016900][ T4309] ---- ---- [ 81.022260][ T4309] lock(rfkill_global_mutex); [ 81.027103][ T4309] lock(&data->open_mutex); [ 81.034640][ T4309] lock(rfkill_global_mutex); [ 81.042014][ T4309] lock((work_completion)(&hdev->bg_scan_update)); [ 81.049246][ T4309] [ 81.049246][ T4309] *** DEADLOCK *** [ 81.049246][ T4309] [ 81.058290][ T4309] 1 lock held by syz.0.17/4309: [ 81.063308][ T4309] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 81.074313][ T4309] [ 81.074313][ T4309] stack backtrace: [ 81.080858][ T4309] CPU: 1 PID: 4309 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.088070][ T4309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 81.098482][ T4309] Call Trace: [ 81.101780][ T4309] [ 81.104734][ T4309] dump_stack_lvl+0x188/0x250 [ 81.109501][ T4309] ? load_image+0x400/0x400 [ 81.114533][ T4309] ? show_regs_print_info+0x20/0x20 [ 81.119844][ T4309] ? print_circular_bug+0x12b/0x1a0 [ 81.125150][ T4309] check_noncircular+0x296/0x330 [ 81.130279][ T4309] ? look_up_lock_class+0x71/0x110 [ 81.135977][ T4309] ? add_chain_block+0x940/0x940 [ 81.141197][ T4309] ? lockdep_lock+0xf1/0x1f0 [ 81.145883][ T4309] ? __lock_acquire+0x12e8/0x7d10 [ 81.151027][ T4309] ? mark_lock+0x94/0x320 [ 81.155635][ T4309] __lock_acquire+0x2c42/0x7d10 [ 81.160499][ T4309] ? mark_lock+0x94/0x320 [ 81.164949][ T4309] ? verify_lock_unused+0x140/0x140 [ 81.170237][ T4309] lock_acquire+0x19e/0x400 [ 81.174958][ T4309] ? __flush_work+0xfa/0x210 [ 81.179823][ T4309] ? __lock_acquire+0x7d10/0x7d10 [ 81.185371][ T4309] ? read_lock_is_recursive+0x10/0x10 [ 81.190786][ T4309] ? start_flush_work+0x776/0x820 [ 81.195898][ T4309] __flush_work+0x116/0x210 [ 81.200652][ T4309] ? __flush_work+0xfa/0x210 [ 81.205231][ T4309] ? flush_work+0x20/0x20 [ 81.209586][ T4309] ? try_to_grab_pending+0xfa/0x7f0 [ 81.214989][ T4309] ? mark_lock+0x94/0x320 [ 81.219310][ T4309] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 81.225370][ T4309] ? lock_chain_count+0x20/0x20 [ 81.230475][ T4309] ? mark_lock+0x94/0x320 [ 81.235086][ T4309] ? __cancel_work_timer+0x36a/0x560 [ 81.240897][ T4309] __cancel_work_timer+0x3f4/0x560 [ 81.246443][ T4309] ? cancel_work_sync+0x20/0x20 [ 81.251527][ T4309] ? __cancel_work+0x1f9/0x2e0 [ 81.256628][ T4309] ? lockdep_hardirqs_on+0x94/0x140 [ 81.262035][ T4309] ? __cancel_work+0x27b/0x2e0 [ 81.266834][ T4309] ? cancel_work+0x20/0x20 [ 81.271302][ T4309] ? lock_chain_count+0x20/0x20 [ 81.276244][ T4309] hci_request_cancel_all+0xcc/0x300 [ 81.281710][ T4309] hci_dev_do_close+0x4e/0x1030 [ 81.286670][ T4309] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.292716][ T4309] ? _raw_spin_unlock+0x40/0x40 [ 81.297649][ T4309] hci_rfkill_set_block+0x10a/0x190 [ 81.303508][ T4309] ? rcu_lock_release+0x20/0x20 [ 81.309151][ T4309] rfkill_set_block+0x1c9/0x3d0 [ 81.314207][ T4309] rfkill_fop_write+0x2e7/0x560 [ 81.319070][ T4309] ? rfkill_fop_read+0x520/0x520 [ 81.324104][ T4309] ? common_file_perm+0x140/0x1c0 [ 81.329220][ T4309] ? fsnotify_perm+0x5d/0x560 [ 81.334210][ T4309] ? security_file_permission+0x75/0xa0 [ 81.340240][ T4309] ? rfkill_fop_read+0x520/0x520 [ 81.345688][ T4309] vfs_write+0x30b/0xd60 [ 81.350027][ T4309] ? file_end_write+0x250/0x250 [ 81.354880][ T4309] ? __context_tracking_exit+0x4c/0x80 [ 81.361081][ T4309] ? __lock_acquire+0x7d10/0x7d10 [ 81.366477][ T4309] ? __fdget_pos+0x1e2/0x370 [ 81.371357][ T4309] ksys_write+0x152/0x260 [ 81.375986][ T4309] ? __ia32_sys_read+0x80/0x80 [ 81.381025][ T4309] ? lockdep_hardirqs_on+0x94/0x140 [ 81.386688][ T4309] do_syscall_64+0x4c/0xa0 [ 81.391115][ T4309] ? clear_bhb_loop+0x30/0x80 [ 81.395960][ T4309] ? clear_bhb_loop+0x30/0x80 [ 81.400828][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.407055][ T4309] RIP: 0033:0x7f41d372ddd9 [ 81.411585][ T4309] 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 [ 81.432175][ T4309] RSP: 002b:00007fff71ebaa68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.440680][ T4309] RAX: ffffffffffffffda RBX: 00007f41d39a6fa0 RCX: 00007f41d372ddd9 [ 81.449039][ T4309] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 81.458083][ T4309] RBP: 00007f41d37c3d69 R08: 0000000000000000 R09: 0000000000000000 [ 81.466774][ T4309] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.475870][ T4309] R13: 00007f41d39a6fac R14: 00007f41d39a6fa0 R15: 00007f41d39a6fa0 [ 81.484065][ T4309]