Warning: Permanently added '10.128.10.4' (ED25519) to the list of known hosts. 2026/01/07 01:10:25 parsed 1 programs [ 70.031786][ T4186] cgroup: Unknown subsys name 'net' [ 70.178990][ T4186] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.206541][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.213169][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.767136][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.460270][ T4210] chnl_net:caif_netlink_parms(): no params data found [ 73.510350][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.518238][ T4210] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.526433][ T4210] device bridge_slave_0 entered promiscuous mode [ 73.535515][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.542727][ T4210] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.550523][ T4210] device bridge_slave_1 entered promiscuous mode [ 73.577154][ T4210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.588128][ T4210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.611705][ T4210] team0: Port device team_slave_0 added [ 73.622940][ T4210] team0: Port device team_slave_1 added [ 73.641823][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.648838][ T4210] 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. [ 73.675159][ T4210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.689669][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.696800][ T4210] 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. [ 73.722786][ T4210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.754239][ T4210] device hsr_slave_0 entered promiscuous mode [ 73.761617][ T4210] device hsr_slave_1 entered promiscuous mode [ 73.861763][ T4210] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.872148][ T4210] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.881362][ T4210] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.890492][ T4210] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.921545][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.928820][ T4210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.936695][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.943820][ T4210] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.001854][ T4210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.017398][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.029523][ T1666] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.038203][ T1666] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.051985][ T4210] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.064467][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.074092][ T1666] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.081182][ T1666] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.105261][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.116091][ T1666] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.123224][ T1666] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.132265][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.153592][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.162279][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.171303][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.185638][ T4210] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.197634][ T4210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.207193][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.330983][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.339566][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.354140][ T4210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.375389][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.386010][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.407260][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.417062][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.429504][ T4210] device veth0_vlan entered promiscuous mode [ 74.436934][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.445258][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.458167][ T4210] device veth1_vlan entered promiscuous mode [ 74.486217][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.497625][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.506735][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.516578][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.527932][ T4210] device veth0_macvtap entered promiscuous mode [ 74.539429][ T4210] device veth1_macvtap entered promiscuous mode [ 74.557215][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.566449][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.583844][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.591856][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.601067][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.615617][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.623005][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.631741][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.646223][ T4210] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.655460][ T4210] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.664771][ T4210] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.673850][ T4210] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.777417][ T4210] syz-executor (4210) used greatest stack depth: 20960 bytes left [ 75.067056][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.092759][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.101733][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.101898][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.111501][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.127944][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.729419][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.629523][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.278876][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.319969][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.190665][ T154] device hsr_slave_0 left promiscuous mode [ 82.262736][ T154] device hsr_slave_1 left promiscuous mode [ 82.302951][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 82.310609][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 82.319562][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.328493][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.336731][ T154] device bridge_slave_1 left promiscuous mode [ 82.345377][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.358916][ T154] device bridge_slave_0 left promiscuous mode [ 82.365723][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.383147][ T154] device veth1_macvtap left promiscuous mode [ 82.389372][ T154] device veth0_macvtap left promiscuous mode [ 82.395554][ T154] device veth1_vlan left promiscuous mode [ 82.401477][ T154] device veth0_vlan left promiscuous mode [ 82.554255][ T154] team0 (unregistering): Port device team_slave_1 removed [ 82.568968][ T154] team0 (unregistering): Port device team_slave_0 removed [ 82.582152][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.596845][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.654305][ T154] bond0 (unregistering): Released all slaves 2026/01/07 01:10:41 executed programs: 0 [ 83.954747][ T4366] chnl_net:caif_netlink_parms(): no params data found [ 84.044641][ T4366] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.051843][ T4366] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.061605][ T4366] device bridge_slave_0 entered promiscuous mode [ 84.071259][ T4366] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.079715][ T4366] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.088268][ T4366] device bridge_slave_1 entered promiscuous mode [ 84.118267][ T4366] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 84.130986][ T4366] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 84.166478][ T4366] team0: Port device team_slave_0 added [ 84.175965][ T4366] team0: Port device team_slave_1 added [ 84.202402][ T4366] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 84.210670][ T4366] 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. [ 84.238136][ T4366] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 84.251189][ T4366] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 84.258554][ T4366] 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. [ 84.285462][ T4366] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 84.328329][ T4366] device hsr_slave_0 entered promiscuous mode [ 84.337984][ T4366] device hsr_slave_1 entered promiscuous mode [ 85.130956][ T4366] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.156843][ T4366] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.176226][ T4366] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.195706][ T4366] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.339922][ T4366] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.410031][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 85.456243][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 85.472125][ T4366] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.489290][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 85.505790][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 85.515984][ T530] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.523345][ T530] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.535262][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.546858][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 85.570421][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.584036][ T530] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.591144][ T530] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.631526][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 85.641286][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 85.664927][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 85.675218][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 85.684284][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.704133][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 85.721975][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.741532][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 85.750149][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.762856][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 85.765283][ T4227] Bluetooth: hci0: command 0x0409 tx timeout [ 85.781292][ T530] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 85.793412][ T4366] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.919488][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 85.927861][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 85.940989][ T4366] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.965374][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 85.975901][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 85.998599][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 86.010743][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 86.021832][ T4366] device veth0_vlan entered promiscuous mode [ 86.031348][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 86.039894][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 86.055453][ T4366] device veth1_vlan entered promiscuous mode [ 86.105568][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 86.115715][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 86.128284][ T4366] device veth0_macvtap entered promiscuous mode [ 86.138391][ T4366] device veth1_macvtap entered promiscuous mode [ 86.183096][ T4366] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.190463][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 86.199590][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 86.210068][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 86.219304][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 86.268131][ T4366] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.276466][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 86.287860][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 86.299248][ T4366] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.309469][ T4366] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.318295][ T4366] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.334025][ T4366] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.460261][ T530] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.493355][ T530] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.515306][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 86.546640][ T4240] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.562765][ T4240] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.571829][ T21] cfg80211: failed to load regulatory.db [ 86.604561][ T1666] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 86.759978][ T4473] [ 86.762357][ T4473] ====================================================== [ 86.769390][ T4473] WARNING: possible circular locking dependency detected [ 86.776441][ T4473] syzkaller #0 Not tainted [ 86.780877][ T4473] ------------------------------------------------------ [ 86.787990][ T4473] syz.0.17/4473 is trying to acquire lock: [ 86.793896][ T4473] ffff888024c98c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 86.805080][ T4473] [ 86.805080][ T4473] but task is already holding lock: [ 86.812463][ T4473] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.822171][ T4473] [ 86.822171][ T4473] which lock already depends on the new lock. [ 86.822171][ T4473] [ 86.832596][ T4473] [ 86.832596][ T4473] the existing dependency chain (in reverse order) is: [ 86.841625][ T4473] [ 86.841625][ T4473] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 86.849649][ T4473] __mutex_lock_common+0x1eb/0x2390 [ 86.855414][ T4473] mutex_lock_nested+0x17/0x20 [ 86.860730][ T4473] rfkill_register+0x33/0x8a0 [ 86.865951][ T4473] hci_register_dev+0x452/0x970 [ 86.871439][ T4473] vhci_create_device+0x32c/0x5c0 [ 86.877101][ T4473] vhci_write+0x391/0x450 [ 86.881988][ T4473] vfs_write+0x712/0xd00 [ 86.886777][ T4473] ksys_write+0x14d/0x250 [ 86.891728][ T4473] do_syscall_64+0x4c/0xa0 [ 86.896698][ T4473] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.903137][ T4473] [ 86.903137][ T4473] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 86.910982][ T4473] __mutex_lock_common+0x1eb/0x2390 [ 86.916733][ T4473] mutex_lock_nested+0x17/0x20 [ 86.922065][ T4473] vhci_send_frame+0x88/0x100 [ 86.927282][ T4473] hci_send_frame+0x1a9/0x2e0 [ 86.932504][ T4473] hci_tx_work+0x9f9/0x1710 [ 86.937562][ T4473] process_one_work+0x863/0x1000 [ 86.943046][ T4473] worker_thread+0xaa8/0x12a0 [ 86.948273][ T4473] kthread+0x436/0x520 [ 86.952883][ T4473] ret_from_fork+0x1f/0x30 [ 86.957848][ T4473] [ 86.957848][ T4473] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 86.967084][ T4473] __flush_work+0xdd/0x1b0 [ 86.972051][ T4473] hci_dev_do_close+0x1e7/0x1030 [ 86.977530][ T4473] hci_unregister_dev+0x2d7/0x580 [ 86.983198][ T4473] vhci_release+0x73/0xc0 [ 86.988083][ T4473] __fput+0x234/0x930 [ 86.992613][ T4473] task_work_run+0x125/0x1a0 [ 86.997757][ T4473] do_exit+0x61e/0x20a0 [ 87.002473][ T4473] do_group_exit+0x12e/0x300 [ 87.007608][ T4473] get_signal+0x6ca/0x12c0 [ 87.012565][ T4473] arch_do_signal_or_restart+0xc1/0x1300 [ 87.018753][ T4473] exit_to_user_mode_loop+0x9e/0x130 [ 87.024592][ T4473] exit_to_user_mode_prepare+0xee/0x180 [ 87.030689][ T4473] syscall_exit_to_user_mode+0x16/0x40 [ 87.036698][ T4473] do_syscall_64+0x58/0xa0 [ 87.041665][ T4473] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.048118][ T4473] [ 87.048118][ T4473] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 87.055797][ T4473] __mutex_lock_common+0x1eb/0x2390 [ 87.061546][ T4473] mutex_lock_nested+0x17/0x20 [ 87.066861][ T4473] bg_scan_update+0x44/0x3b0 [ 87.072004][ T4473] process_one_work+0x863/0x1000 [ 87.077490][ T4473] worker_thread+0xaa8/0x12a0 [ 87.082718][ T4473] kthread+0x436/0x520 [ 87.082738][ T4473] ret_from_fork+0x1f/0x30 [ 87.092307][ T4473] [ 87.092307][ T4473] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 87.102153][ T4473] __lock_acquire+0x2c33/0x7c60 [ 87.107563][ T4473] lock_acquire+0x197/0x3f0 [ 87.112617][ T4473] __flush_work+0xdd/0x1b0 [ 87.117584][ T4473] __cancel_work_timer+0x3ac/0x520 [ 87.123239][ T4473] hci_request_cancel_all+0xcc/0x300 [ 87.129082][ T4473] hci_dev_do_close+0x4e/0x1030 [ 87.134481][ T4473] hci_rfkill_set_block+0x10a/0x190 [ 87.140220][ T4473] rfkill_set_block+0x1c6/0x420 [ 87.145614][ T4473] rfkill_fop_write+0x458/0x560 [ 87.151010][ T4473] vfs_write+0x300/0xd00 [ 87.155797][ T4473] ksys_write+0x14d/0x250 [ 87.160671][ T4473] do_syscall_64+0x4c/0xa0 [ 87.165633][ T4473] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.172070][ T4473] [ 87.172070][ T4473] other info that might help us debug this: [ 87.172070][ T4473] [ 87.182312][ T4473] Chain exists of: [ 87.182312][ T4473] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 87.182312][ T4473] [ 87.198101][ T4473] Possible unsafe locking scenario: [ 87.198101][ T4473] [ 87.205577][ T4473] CPU0 CPU1 [ 87.210957][ T4473] ---- ---- [ 87.216345][ T4473] lock(rfkill_global_mutex); [ 87.221136][ T4473] lock(&data->open_mutex); [ 87.228276][ T4473] lock(rfkill_global_mutex); [ 87.235579][ T4473] lock((work_completion)(&hdev->bg_scan_update)); [ 87.242187][ T4473] [ 87.242187][ T4473] *** DEADLOCK *** [ 87.242187][ T4473] [ 87.250346][ T4473] 1 lock held by syz.0.17/4473: [ 87.255217][ T4473] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 87.265347][ T4473] [ 87.265347][ T4473] stack backtrace: [ 87.271266][ T4473] CPU: 0 PID: 4473 Comm: syz.0.17 Not tainted syzkaller #0 [ 87.278484][ T4473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 87.288578][ T4473] Call Trace: [ 87.291877][ T4473] [ 87.294831][ T4473] dump_stack_lvl+0x168/0x230 [ 87.299533][ T4473] ? load_image+0x3b0/0x3b0 [ 87.304062][ T4473] ? show_regs_print_info+0x20/0x20 [ 87.309289][ T4473] ? print_circular_bug+0x12b/0x1a0 [ 87.314516][ T4473] check_noncircular+0x274/0x310 [ 87.319483][ T4473] ? add_chain_block+0x940/0x940 [ 87.324450][ T4473] ? lockdep_lock+0xdc/0x1e0 [ 87.329066][ T4473] ? __lock_acquire+0x12d9/0x7c60 [ 87.334118][ T4473] ? lockdep_lock+0x1e0/0x1e0 [ 87.338835][ T4473] ? mark_lock+0x94/0x320 [ 87.343194][ T4473] __lock_acquire+0x2c33/0x7c60 [ 87.348082][ T4473] ? verify_lock_unused+0x140/0x140 [ 87.353494][ T4473] ? verify_lock_unused+0x140/0x140 [ 87.358754][ T4473] lock_acquire+0x197/0x3f0 [ 87.363296][ T4473] ? __flush_work+0xc1/0x1b0 [ 87.367908][ T4473] ? __lock_acquire+0x7c60/0x7c60 [ 87.372968][ T4473] ? read_lock_is_recursive+0x10/0x10 [ 87.378375][ T4473] ? start_flush_work+0x776/0x820 [ 87.383427][ T4473] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 87.389374][ T4473] ? _raw_spin_unlock+0x40/0x40 [ 87.394368][ T4473] __flush_work+0xdd/0x1b0 [ 87.398814][ T4473] ? __flush_work+0xc1/0x1b0 [ 87.403436][ T4473] ? flush_work+0x20/0x20 [ 87.407797][ T4473] ? try_to_grab_pending+0xf3/0x7e0 [ 87.413020][ T4473] ? lockdep_hardirqs_off+0x70/0x100 [ 87.418338][ T4473] ? mark_lock+0x94/0x320 [ 87.422704][ T4473] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 87.428798][ T4473] ? lock_chain_count+0x20/0x20 [ 87.433674][ T4473] ? mark_lock+0x94/0x320 [ 87.438033][ T4473] ? __cancel_work_timer+0x331/0x520 [ 87.443348][ T4473] __cancel_work_timer+0x3ac/0x520 [ 87.448587][ T4473] ? cancel_work_sync+0x20/0x20 [ 87.453464][ T4473] ? __cancel_work+0x1f4/0x2d0 [ 87.458258][ T4473] ? lockdep_hardirqs_on+0x94/0x140 [ 87.463485][ T4473] ? __cancel_work+0x26f/0x2d0 [ 87.468275][ T4473] ? cancel_work+0x20/0x20 [ 87.472718][ T4473] ? lock_chain_count+0x20/0x20 [ 87.477616][ T4473] hci_request_cancel_all+0xcc/0x300 [ 87.482943][ T4473] hci_dev_do_close+0x4e/0x1030 [ 87.487828][ T4473] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 87.493755][ T4473] ? _raw_spin_unlock+0x40/0x40 [ 87.498726][ T4473] hci_rfkill_set_block+0x10a/0x190 [ 87.503985][ T4473] ? rcu_lock_release+0x20/0x20 [ 87.508870][ T4473] rfkill_set_block+0x1c6/0x420 [ 87.513750][ T4473] rfkill_fop_write+0x458/0x560 [ 87.518633][ T4473] ? verify_lock_unused+0x140/0x140 [ 87.523864][ T4473] ? rfkill_fop_read+0x4b0/0x4b0 [ 87.528834][ T4473] ? common_file_perm+0xc0/0x1c0 [ 87.533804][ T4473] ? fsnotify_perm+0x5d/0x560 [ 87.538512][ T4473] ? security_file_permission+0x75/0xa0 [ 87.544085][ T4473] ? rfkill_fop_read+0x4b0/0x4b0 [ 87.549058][ T4473] vfs_write+0x300/0xd00 [ 87.553333][ T4473] ? file_end_write+0x250/0x250 [ 87.558211][ T4473] ? __context_tracking_exit+0x4c/0x80 [ 87.563703][ T4473] ? __lock_acquire+0x7c60/0x7c60 [ 87.568765][ T4473] ? __fdget_pos+0x1e2/0x370 [ 87.573390][ T4473] ksys_write+0x14d/0x250 [ 87.577755][ T4473] ? __ia32_sys_read+0x80/0x80 [ 87.582557][ T4473] ? lockdep_hardirqs_on+0x94/0x140 [ 87.587789][ T4473] do_syscall_64+0x4c/0xa0 [ 87.592232][ T4473] ? clear_bhb_loop+0x30/0x80 [ 87.596941][ T4473] ? clear_bhb_loop+0x30/0x80 [ 87.601735][ T4473] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.607655][ T4473] RIP: 0033:0x7f332ae52749 [ 87.612111][ T4473] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 87.631860][ T4473] RSP: 002b:00007ffd496d2938 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.640363][ T4473] RAX: ffffffffffffffda RBX: 00007f332b0a8fa0 RCX: 00007f332ae52749 [ 87.648360][ T4473] RDX: 0000000000000008 RSI: 0000200000000200 RDI: 0000000000000003 [ 87.656360][ T4473] RBP: 00007f332aed6f91 R08: 0000000000000000 R09: 0000000000000000 [ 87.664359][ T4473] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.672359][ T4473] R13: 00007f332b0a8fa0 R14: 00007f332b0a8fa0 R15: 0000000000000003 [ 87.680362][ T4473]