Warning: Permanently added '10.128.0.45' (ED25519) to the list of known hosts. 2026/04/11 11:33:43 parsed 1 programs [ 64.027693][ T4188] cgroup: Unknown subsys name 'net' [ 64.173426][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 65.444529][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 66.869779][ T4202] chnl_net:caif_netlink_parms(): no params data found [ 66.913811][ T4202] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.921566][ T4202] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.929586][ T4202] device bridge_slave_0 entered promiscuous mode [ 66.938605][ T4202] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.945934][ T4202] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.953807][ T4202] device bridge_slave_1 entered promiscuous mode [ 66.974747][ T4202] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.985599][ T4202] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.006094][ T4202] team0: Port device team_slave_0 added [ 67.017577][ T4202] team0: Port device team_slave_1 added [ 67.032767][ T4202] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.039962][ T4202] 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. [ 67.067631][ T4202] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.082460][ T4202] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.089706][ T4202] 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. [ 67.116784][ T4202] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.146782][ T4202] device hsr_slave_0 entered promiscuous mode [ 67.154553][ T4202] device hsr_slave_1 entered promiscuous mode [ 67.252333][ T4202] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.264944][ T4202] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.276030][ T4202] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.285734][ T4202] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.314843][ T4202] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.322084][ T4202] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.330349][ T4202] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.337586][ T4202] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.395316][ T4202] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.410856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.431711][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.441520][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.449777][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.466107][ T4202] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.479705][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.488914][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.496106][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.521293][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.530773][ T150] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.538144][ T150] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.549000][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.557888][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.572337][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.591542][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.605874][ T4202] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.618923][ T4202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.627610][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.745581][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.753900][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.768222][ T4202] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.792256][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.814371][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.824156][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.833409][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.844080][ T4202] device veth0_vlan entered promiscuous mode [ 67.860258][ T4202] device veth1_vlan entered promiscuous mode [ 67.884433][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.897695][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.909287][ T4202] device veth0_macvtap entered promiscuous mode [ 67.920898][ T4202] device veth1_macvtap entered promiscuous mode [ 67.938935][ T4202] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.946475][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.957156][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.965303][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.974724][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.989298][ T4202] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.999624][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.009329][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.020953][ T4202] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.031067][ T4202] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.042037][ T4202] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.051388][ T4202] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.169875][ T4202] syz-executor (4202) used greatest stack depth: 20912 bytes left [ 68.498241][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.844103][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.401182][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.407637][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.323095][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.384819][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.191432][ T150] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.208782][ T150] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.231069][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.260743][ T4209] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.270534][ T4209] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.282250][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.424263][ T144] device hsr_slave_0 left promiscuous mode [ 74.438694][ T144] device hsr_slave_1 left promiscuous mode [ 74.459903][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.472556][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.490520][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.498294][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.506065][ T144] device bridge_slave_1 left promiscuous mode [ 74.529032][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.552800][ T144] device bridge_slave_0 left promiscuous mode [ 74.559998][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.583747][ T144] device veth1_macvtap left promiscuous mode [ 74.590617][ T144] device veth0_macvtap left promiscuous mode [ 74.596984][ T144] device veth1_vlan left promiscuous mode [ 74.604374][ T144] device veth0_vlan left promiscuous mode [ 74.781149][ T144] team0 (unregistering): Port device team_slave_1 removed [ 74.793329][ T144] team0 (unregistering): Port device team_slave_0 removed [ 74.806278][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.820614][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.871283][ T144] bond0 (unregistering): Released all slaves 2026/04/11 11:33:57 executed programs: 0 [ 76.712074][ T4380] chnl_net:caif_netlink_parms(): no params data found [ 76.808706][ T4380] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.816304][ T4380] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.824441][ T4380] device bridge_slave_0 entered promiscuous mode [ 76.832886][ T4380] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.840184][ T4380] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.848800][ T4380] device bridge_slave_1 entered promiscuous mode [ 76.873618][ T4380] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.885298][ T4380] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.912702][ T4380] team0: Port device team_slave_0 added [ 76.921267][ T4380] team0: Port device team_slave_1 added [ 76.948533][ T4380] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.956084][ T4380] 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. [ 76.982236][ T4380] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.994500][ T4380] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.002448][ T4380] 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. [ 77.028789][ T4380] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.061299][ T4380] device hsr_slave_0 entered promiscuous mode [ 77.068771][ T4380] device hsr_slave_1 entered promiscuous mode [ 77.834366][ T4380] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.844026][ T4380] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.855252][ T4380] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.865894][ T4380] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.935405][ T4380] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.951608][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.960898][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.975427][ T4380] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.986527][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.997043][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.006552][ T4209] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.013692][ T4209] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.035142][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.046242][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.055872][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.066937][ T4209] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.074244][ T4209] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.085179][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.094317][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.138049][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.149700][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.170764][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.180145][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.191138][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.201042][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.212570][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.221666][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.232527][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.243208][ T4380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.413923][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.422465][ T4209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.466304][ T4380] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.487807][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.498999][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.519931][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.528791][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.537423][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.546206][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.584479][ T4380] device veth0_vlan entered promiscuous mode [ 78.596875][ T4380] device veth1_vlan entered promiscuous mode [ 78.598866][ T1110] Bluetooth: hci0: command 0x0409 tx timeout [ 78.621715][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.632280][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.642510][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.651456][ T150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.664892][ T4380] device veth0_macvtap entered promiscuous mode [ 78.709655][ T4380] device veth1_macvtap entered promiscuous mode [ 78.726570][ T4380] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.737127][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.746678][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.755955][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.766096][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.780114][ T4380] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.788292][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.799165][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.811251][ T4380] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.820334][ T4380] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.830099][ T4380] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.841383][ T4380] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.960145][ T150] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.972423][ T150] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.992535][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.008497][ T150] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.016510][ T150] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.024703][ T161] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.187316][ T4501] [ 79.189671][ T4501] ====================================================== [ 79.196684][ T4501] WARNING: possible circular locking dependency detected [ 79.203811][ T4501] syzkaller #0 Not tainted [ 79.208316][ T4501] ------------------------------------------------------ [ 79.215332][ T4501] syz.0.17/4501 is trying to acquire lock: [ 79.221137][ T4501] ffff88807e5c8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 79.232213][ T4501] [ 79.232213][ T4501] but task is already holding lock: [ 79.239578][ T4501] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 79.249249][ T4501] [ 79.249249][ T4501] which lock already depends on the new lock. [ 79.249249][ T4501] [ 79.259655][ T4501] [ 79.259655][ T4501] the existing dependency chain (in reverse order) is: [ 79.268683][ T4501] [ 79.268683][ T4501] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 79.276866][ T4501] __mutex_lock_common+0x1e3/0x2400 [ 79.282604][ T4501] mutex_lock_nested+0x17/0x20 [ 79.287903][ T4501] rfkill_register+0x33/0x8a0 [ 79.293110][ T4501] hci_register_dev+0x452/0x970 [ 79.298496][ T4501] vhci_create_device+0x32c/0x5c0 [ 79.304142][ T4501] vhci_write+0x391/0x450 [ 79.309005][ T4501] vfs_write+0x745/0xd60 [ 79.313779][ T4501] ksys_write+0x152/0x260 [ 79.318639][ T4501] do_syscall_64+0x4c/0xa0 [ 79.323592][ T4501] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.330011][ T4501] [ 79.330011][ T4501] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 79.337836][ T4501] __mutex_lock_common+0x1e3/0x2400 [ 79.343566][ T4501] mutex_lock_nested+0x17/0x20 [ 79.349206][ T4501] vhci_send_frame+0x88/0x100 [ 79.354416][ T4501] hci_send_frame+0x1a9/0x2e0 [ 79.359660][ T4501] hci_tx_work+0x9f9/0x1710 [ 79.364846][ T4501] process_one_work+0x85f/0x1010 [ 79.370317][ T4501] worker_thread+0xaa6/0x1290 [ 79.375526][ T4501] kthread+0x436/0x520 [ 79.380125][ T4501] ret_from_fork+0x1f/0x30 [ 79.385069][ T4501] [ 79.385069][ T4501] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 79.394288][ T4501] __flush_work+0x116/0x210 [ 79.399323][ T4501] hci_dev_do_close+0x1e7/0x1030 [ 79.404787][ T4501] hci_unregister_dev+0x2d7/0x580 [ 79.410338][ T4501] vhci_release+0x73/0xc0 [ 79.415246][ T4501] __fput+0x234/0x930 [ 79.419761][ T4501] task_work_run+0x125/0x1a0 [ 79.424875][ T4501] do_exit+0x626/0x20c0 [ 79.429560][ T4501] do_group_exit+0x12e/0x300 [ 79.434670][ T4501] get_signal+0x6ca/0x12c0 [ 79.439607][ T4501] arch_do_signal_or_restart+0xe7/0x12c0 [ 79.445764][ T4501] exit_to_user_mode_loop+0x9e/0x130 [ 79.451581][ T4501] exit_to_user_mode_prepare+0xee/0x180 [ 79.457652][ T4501] syscall_exit_to_user_mode+0x16/0x40 [ 79.463729][ T4501] do_syscall_64+0x58/0xa0 [ 79.468859][ T4501] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.475291][ T4501] [ 79.475291][ T4501] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 79.482936][ T4501] __mutex_lock_common+0x1e3/0x2400 [ 79.488668][ T4501] mutex_lock_nested+0x17/0x20 [ 79.493960][ T4501] bg_scan_update+0x44/0x3b0 [ 79.499252][ T4501] process_one_work+0x85f/0x1010 [ 79.504727][ T4501] worker_thread+0xaa6/0x1290 [ 79.509931][ T4501] kthread+0x436/0x520 [ 79.514646][ T4501] ret_from_fork+0x1f/0x30 [ 79.519590][ T4501] [ 79.519590][ T4501] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.529421][ T4501] __lock_acquire+0x2c42/0x7d10 [ 79.534801][ T4501] lock_acquire+0x19e/0x400 [ 79.539833][ T4501] __flush_work+0x116/0x210 [ 79.544864][ T4501] __cancel_work_timer+0x3f4/0x560 [ 79.550521][ T4501] hci_request_cancel_all+0xcc/0x300 [ 79.556332][ T4501] hci_dev_do_close+0x4e/0x1030 [ 79.561738][ T4501] hci_rfkill_set_block+0x10a/0x190 [ 79.567463][ T4501] rfkill_set_block+0x1c6/0x420 [ 79.572853][ T4501] rfkill_fop_write+0x452/0x560 [ 79.578233][ T4501] vfs_write+0x30b/0xd60 [ 79.583095][ T4501] ksys_write+0x152/0x260 [ 79.587946][ T4501] do_syscall_64+0x4c/0xa0 [ 79.592973][ T4501] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.599405][ T4501] [ 79.599405][ T4501] other info that might help us debug this: [ 79.599405][ T4501] [ 79.609632][ T4501] Chain exists of: [ 79.609632][ T4501] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.609632][ T4501] [ 79.625372][ T4501] Possible unsafe locking scenario: [ 79.625372][ T4501] [ 79.632824][ T4501] CPU0 CPU1 [ 79.638323][ T4501] ---- ---- [ 79.643687][ T4501] lock(rfkill_global_mutex); [ 79.648454][ T4501] lock(&data->open_mutex); [ 79.655578][ T4501] lock(rfkill_global_mutex); [ 79.662995][ T4501] lock((work_completion)(&hdev->bg_scan_update)); [ 79.669807][ T4501] [ 79.669807][ T4501] *** DEADLOCK *** [ 79.669807][ T4501] [ 79.677948][ T4501] 1 lock held by syz.0.17/4501: [ 79.682791][ T4501] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 79.692903][ T4501] [ 79.692903][ T4501] stack backtrace: [ 79.698815][ T4501] CPU: 0 PID: 4501 Comm: syz.0.17 Not tainted syzkaller #0 [ 79.706012][ T4501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.716174][ T4501] Call Trace: [ 79.719457][ T4501] [ 79.722394][ T4501] dump_stack_lvl+0x188/0x250 [ 79.727167][ T4501] ? load_image+0x400/0x400 [ 79.731788][ T4501] ? show_regs_print_info+0x20/0x20 [ 79.737000][ T4501] ? print_circular_bug+0x12b/0x1a0 [ 79.742204][ T4501] check_noncircular+0x296/0x330 [ 79.747152][ T4501] ? look_up_lock_class+0x71/0x110 [ 79.752283][ T4501] ? add_chain_block+0x940/0x940 [ 79.757229][ T4501] ? lockdep_lock+0xf1/0x1f0 [ 79.761848][ T4501] ? __lock_acquire+0x12e8/0x7d10 [ 79.766883][ T4501] ? mark_lock+0x94/0x320 [ 79.771221][ T4501] __lock_acquire+0x2c42/0x7d10 [ 79.776092][ T4501] ? verify_lock_unused+0x140/0x140 [ 79.781397][ T4501] ? verify_lock_unused+0x140/0x140 [ 79.786609][ T4501] ? mark_lock+0x94/0x320 [ 79.790952][ T4501] lock_acquire+0x19e/0x400 [ 79.795603][ T4501] ? __flush_work+0xfa/0x210 [ 79.800203][ T4501] ? __lock_acquire+0x7d10/0x7d10 [ 79.805236][ T4501] ? read_lock_is_recursive+0x10/0x10 [ 79.810620][ T4501] ? start_flush_work+0x776/0x820 [ 79.815912][ T4501] __flush_work+0x116/0x210 [ 79.820423][ T4501] ? __flush_work+0xfa/0x210 [ 79.825023][ T4501] ? flush_work+0x20/0x20 [ 79.829541][ T4501] ? try_to_grab_pending+0xfa/0x7f0 [ 79.834746][ T4501] ? mark_lock+0x94/0x320 [ 79.839168][ T4501] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 79.845157][ T4501] ? lock_chain_count+0x20/0x20 [ 79.850018][ T4501] ? mark_lock+0x94/0x320 [ 79.854354][ T4501] ? __cancel_work_timer+0x36a/0x560 [ 79.859649][ T4501] __cancel_work_timer+0x3f4/0x560 [ 79.865035][ T4501] ? cancel_work_sync+0x20/0x20 [ 79.869894][ T4501] ? __cancel_work+0x1f9/0x2e0 [ 79.874666][ T4501] ? lockdep_hardirqs_on+0x94/0x140 [ 79.879873][ T4501] ? __cancel_work+0x27b/0x2e0 [ 79.884645][ T4501] ? cancel_work+0x20/0x20 [ 79.889068][ T4501] ? lock_chain_count+0x20/0x20 [ 79.893926][ T4501] hci_request_cancel_all+0xcc/0x300 [ 79.899223][ T4501] hci_dev_do_close+0x4e/0x1030 [ 79.904079][ T4501] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 79.909982][ T4501] ? _raw_spin_unlock+0x40/0x40 [ 79.914932][ T4501] hci_rfkill_set_block+0x10a/0x190 [ 79.920140][ T4501] ? rcu_lock_release+0x20/0x20 [ 79.925002][ T4501] rfkill_set_block+0x1c6/0x420 [ 79.929863][ T4501] rfkill_fop_write+0x452/0x560 [ 79.934810][ T4501] ? rfkill_fop_read+0x4d0/0x4d0 [ 79.939752][ T4501] ? common_file_perm+0x110/0x1c0 [ 79.944955][ T4501] ? fsnotify_perm+0x5d/0x560 [ 79.949650][ T4501] ? security_file_permission+0x75/0xa0 [ 79.955203][ T4501] ? rfkill_fop_read+0x4d0/0x4d0 [ 79.960197][ T4501] vfs_write+0x30b/0xd60 [ 79.964536][ T4501] ? file_end_write+0x250/0x250 [ 79.969662][ T4501] ? __context_tracking_exit+0x4c/0x80 [ 79.975130][ T4501] ? __lock_acquire+0x7d10/0x7d10 [ 79.980164][ T4501] ? __fdget_pos+0x1e2/0x370 [ 79.984941][ T4501] ksys_write+0x152/0x260 [ 79.989416][ T4501] ? __ia32_sys_read+0x80/0x80 [ 79.994286][ T4501] ? lockdep_hardirqs_on+0x94/0x140 [ 79.999502][ T4501] do_syscall_64+0x4c/0xa0 [ 80.003924][ T4501] ? clear_bhb_loop+0x30/0x80 [ 80.008624][ T4501] ? clear_bhb_loop+0x30/0x80 [ 80.013422][ T4501] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.019427][ T4501] RIP: 0033:0x7f9891516819 [ 80.023852][ T4501] 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 [ 80.043725][ T4501] RSP: 002b:00007ffdc1648688 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 80.052151][ T4501] RAX: ffffffffffffffda RBX: 00007f989178ffa0 RCX: 00007f9891516819 [ 80.060175][ T4501] RDX: 0000000000000008 RSI: 0000200000000300 RDI: 0000000000000003 [ 80.068246][ T4501] RBP: 00007f98915acc91 R08: 0000000000000000 R09: 0000000000000000 [ 80.076230][ T4501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.084208][ T4501] R13: 00007f989178ffac R14: 00007f989178ffa0 R15: 00007f989178ffa0 [ 80.092191][ T4501]