Warning: Permanently added '10.128.0.8' (ED25519) to the list of known hosts. 2026/05/31 10:36:22 parsed 1 programs [ 70.282633][ T4200] cgroup: Unknown subsys name 'net' [ 70.397011][ T4200] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.193115][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.199655][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.002271][ T4200] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.826727][ T4223] chnl_net:caif_netlink_parms(): no params data found [ 73.875021][ T4223] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.882699][ T4223] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.891011][ T4223] device bridge_slave_0 entered promiscuous mode [ 73.900519][ T4223] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.907658][ T4223] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.915641][ T4223] device bridge_slave_1 entered promiscuous mode [ 73.938461][ T4223] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.949893][ T4223] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.974484][ T4223] team0: Port device team_slave_0 added [ 73.985063][ T4223] team0: Port device team_slave_1 added [ 74.002742][ T4223] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.009694][ T4223] 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. [ 74.035747][ T4223] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.048348][ T4223] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.055672][ T4223] 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. [ 74.082084][ T4223] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.123351][ T4223] device hsr_slave_0 entered promiscuous mode [ 74.131643][ T4223] device hsr_slave_1 entered promiscuous mode [ 74.277562][ T4223] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.291521][ T4223] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.303245][ T4223] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.313299][ T4223] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.346616][ T4223] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.353934][ T4223] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.361786][ T4223] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.368889][ T4223] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.432149][ T4223] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.447213][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.459046][ T1636] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.468060][ T1636] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.477989][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.494350][ T4223] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.506965][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.517013][ T1636] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.524149][ T1636] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.552872][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.563670][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.570808][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.581365][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.604572][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.615540][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.624471][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.635429][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.646267][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.769716][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.778204][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.795091][ T4223] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.818552][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.828540][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.853217][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.862874][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.875126][ T4223] device veth0_vlan entered promiscuous mode [ 74.883879][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.894514][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.907738][ T4223] device veth1_vlan entered promiscuous mode [ 74.932065][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.940875][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.949072][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.958090][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.969316][ T4223] device veth0_macvtap entered promiscuous mode [ 74.980788][ T4223] device veth1_macvtap entered promiscuous mode [ 74.998756][ T4223] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.007752][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.017134][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.026169][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.036277][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.048265][ T4223] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.057718][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.067038][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.077608][ T4223] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.087993][ T4223] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.097878][ T4223] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.108403][ T4223] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.287123][ T4223] syz-executor (4223) used greatest stack depth: 20624 bytes left [ 75.379172][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.391817][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.404018][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.432606][ T1636] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.441289][ T1636] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.450886][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.813642][ T446] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.696974][ T446] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.956373][ T446] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.017645][ T446] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/05/31 10:36:35 executed programs: 0 [ 81.259988][ T446] device hsr_slave_0 left promiscuous mode [ 81.266699][ T446] device hsr_slave_1 left promiscuous mode [ 81.275366][ T446] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.283424][ T446] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.295800][ T446] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.303484][ T446] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.312842][ T446] device bridge_slave_1 left promiscuous mode [ 81.319930][ T446] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.338714][ T446] device bridge_slave_0 left promiscuous mode [ 81.345088][ T446] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.371381][ T446] device veth1_macvtap left promiscuous mode [ 81.377798][ T446] device veth0_macvtap left promiscuous mode [ 81.384308][ T446] device veth1_vlan left promiscuous mode [ 81.391866][ T446] device veth0_vlan left promiscuous mode [ 81.636834][ T446] team0 (unregistering): Port device team_slave_1 removed [ 81.656645][ T446] team0 (unregistering): Port device team_slave_0 removed [ 81.675137][ T446] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.692721][ T446] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.779190][ T446] bond0 (unregistering): Released all slaves [ 81.936442][ T4330] chnl_net:caif_netlink_parms(): no params data found [ 81.995671][ T4330] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.004120][ T4330] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.012359][ T4330] device bridge_slave_0 entered promiscuous mode [ 82.023738][ T4330] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.031031][ T4330] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.039282][ T4330] device bridge_slave_1 entered promiscuous mode [ 82.064211][ T4330] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.075884][ T4330] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.104036][ T4330] team0: Port device team_slave_0 added [ 82.112884][ T4330] team0: Port device team_slave_1 added [ 82.133821][ T4330] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.140894][ T4330] 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. [ 82.167022][ T4330] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.179502][ T4330] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.186537][ T4330] 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. [ 82.217437][ T4330] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.259454][ T4330] device hsr_slave_0 entered promiscuous mode [ 82.266448][ T4330] device hsr_slave_1 entered promiscuous mode [ 82.909073][ T4330] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.933344][ T4330] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.953214][ T4330] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.972927][ T4330] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.058106][ T4330] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.091113][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.099409][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.113406][ T4330] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.126817][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.142022][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.161696][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.168830][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.190801][ T4286] Bluetooth: hci0: command 0x0409 tx timeout [ 83.210550][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.241834][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.251497][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.261350][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.268458][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.293845][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.311004][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.342878][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.371664][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.384398][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.404278][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.413878][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.423222][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.437725][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.450481][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.470818][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.491531][ T4330] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.724617][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.733023][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.755682][ T4330] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.811654][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.832115][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.862111][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.878102][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.892339][ T4330] device veth0_vlan entered promiscuous mode [ 83.905260][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.914634][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.927736][ T4330] device veth1_vlan entered promiscuous mode [ 83.971212][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.979954][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.991063][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.999692][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.012853][ T4330] device veth0_macvtap entered promiscuous mode [ 84.025292][ T4330] device veth1_macvtap entered promiscuous mode [ 84.044510][ T4330] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.054398][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.063555][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.075838][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.085045][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.101016][ T4330] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.109407][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.120395][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.131648][ T4330] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.143172][ T4330] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.152765][ T4330] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.162955][ T4330] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.261361][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.283267][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.296076][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.335784][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.351199][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.358862][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.424016][ T4410] [ 84.426394][ T4410] ====================================================== [ 84.433429][ T4410] WARNING: possible circular locking dependency detected [ 84.440500][ T4410] syzkaller #0 Not tainted [ 84.445033][ T4410] ------------------------------------------------------ [ 84.452067][ T4410] syz.0.17/4410 is trying to acquire lock: [ 84.457894][ T4410] ffff888025eb8c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 84.468995][ T4410] [ 84.468995][ T4410] but task is already holding lock: [ 84.476378][ T4410] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.486077][ T4410] [ 84.486077][ T4410] which lock already depends on the new lock. [ 84.486077][ T4410] [ 84.496502][ T4410] [ 84.496502][ T4410] the existing dependency chain (in reverse order) is: [ 84.505548][ T4410] [ 84.505548][ T4410] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.513576][ T4410] __mutex_lock_common+0x1e3/0x2400 [ 84.519333][ T4410] mutex_lock_nested+0x17/0x20 [ 84.524662][ T4410] rfkill_register+0x33/0x980 [ 84.529896][ T4410] hci_register_dev+0x452/0x970 [ 84.535309][ T4410] vhci_create_device+0x32c/0x5c0 [ 84.540898][ T4410] vhci_write+0x391/0x450 [ 84.545776][ T4410] vfs_write+0x745/0xd60 [ 84.550570][ T4410] ksys_write+0x152/0x260 [ 84.555539][ T4410] do_syscall_64+0x4c/0xa0 [ 84.560513][ T4410] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.566965][ T4410] [ 84.566965][ T4410] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.574810][ T4410] __mutex_lock_common+0x1e3/0x2400 [ 84.580568][ T4410] mutex_lock_nested+0x17/0x20 [ 84.585879][ T4410] vhci_send_frame+0x88/0x100 [ 84.591113][ T4410] hci_send_frame+0x1a9/0x2e0 [ 84.596433][ T4410] hci_tx_work+0x9f9/0x1710 [ 84.601485][ T4410] process_one_work+0x85f/0x1010 [ 84.606977][ T4410] worker_thread+0xaa6/0x1290 [ 84.612205][ T4410] kthread+0x436/0x520 [ 84.616823][ T4410] ret_from_fork+0x1f/0x30 [ 84.621789][ T4410] [ 84.621789][ T4410] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.631042][ T4410] __flush_work+0x116/0x210 [ 84.636103][ T4410] hci_dev_do_close+0x1e7/0x1030 [ 84.641594][ T4410] hci_unregister_dev+0x2d7/0x580 [ 84.647172][ T4410] vhci_release+0x73/0xc0 [ 84.652061][ T4410] __fput+0x234/0x930 [ 84.656593][ T4410] task_work_run+0x125/0x1a0 [ 84.661740][ T4410] do_exit+0x626/0x20c0 [ 84.666444][ T4410] do_group_exit+0x12e/0x300 [ 84.671589][ T4410] get_signal+0x6d6/0x12d0 [ 84.676560][ T4410] arch_do_signal_or_restart+0xe7/0x12c0 [ 84.682747][ T4410] exit_to_user_mode_loop+0x9e/0x130 [ 84.688582][ T4410] exit_to_user_mode_prepare+0xee/0x180 [ 84.694674][ T4410] syscall_exit_to_user_mode+0x16/0x40 [ 84.700684][ T4410] do_syscall_64+0x58/0xa0 [ 84.705656][ T4410] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.712100][ T4410] [ 84.712100][ T4410] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.719778][ T4410] __mutex_lock_common+0x1e3/0x2400 [ 84.725538][ T4410] mutex_lock_nested+0x17/0x20 [ 84.730857][ T4410] bg_scan_update+0x44/0x3b0 [ 84.736000][ T4410] process_one_work+0x85f/0x1010 [ 84.741486][ T4410] worker_thread+0xaa6/0x1290 [ 84.746724][ T4410] kthread+0x436/0x520 [ 84.751338][ T4410] ret_from_fork+0x1f/0x30 [ 84.756307][ T4410] [ 84.756307][ T4410] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.766156][ T4410] __lock_acquire+0x2c42/0x7d10 [ 84.771569][ T4410] lock_acquire+0x19e/0x400 [ 84.776636][ T4410] __flush_work+0x116/0x210 [ 84.781767][ T4410] __cancel_work_timer+0x3f4/0x560 [ 84.787431][ T4410] hci_request_cancel_all+0xcc/0x300 [ 84.793272][ T4410] hci_dev_do_close+0x4e/0x1030 [ 84.798674][ T4410] hci_rfkill_set_block+0x10a/0x190 [ 84.804426][ T4410] rfkill_set_block+0x1c9/0x3d0 [ 84.809837][ T4410] rfkill_fop_write+0x452/0x560 [ 84.815236][ T4410] vfs_write+0x30b/0xd60 [ 84.820029][ T4410] ksys_write+0x152/0x260 [ 84.824917][ T4410] do_syscall_64+0x4c/0xa0 [ 84.830231][ T4410] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.836770][ T4410] [ 84.836770][ T4410] other info that might help us debug this: [ 84.836770][ T4410] [ 84.847022][ T4410] Chain exists of: [ 84.847022][ T4410] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.847022][ T4410] [ 84.862789][ T4410] Possible unsafe locking scenario: [ 84.862789][ T4410] [ 84.870263][ T4410] CPU0 CPU1 [ 84.875652][ T4410] ---- ---- [ 84.881044][ T4410] lock(rfkill_global_mutex); [ 84.885843][ T4410] lock(&data->open_mutex); [ 84.892990][ T4410] lock(rfkill_global_mutex); [ 84.900302][ T4410] lock((work_completion)(&hdev->bg_scan_update)); [ 84.906919][ T4410] [ 84.906919][ T4410] *** DEADLOCK *** [ 84.906919][ T4410] [ 84.915089][ T4410] 1 lock held by syz.0.17/4410: [ 84.920055][ T4410] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 84.930202][ T4410] [ 84.930202][ T4410] stack backtrace: [ 84.936132][ T4410] CPU: 1 PID: 4410 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.943362][ T4410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 84.953451][ T4410] Call Trace: [ 84.956772][ T4410] [ 84.959728][ T4410] dump_stack_lvl+0x188/0x250 [ 84.964442][ T4410] ? load_image+0x400/0x400 [ 84.968987][ T4410] ? show_regs_print_info+0x20/0x20 [ 84.974233][ T4410] ? print_circular_bug+0x12b/0x1a0 [ 84.979468][ T4410] check_noncircular+0x296/0x330 [ 84.984452][ T4410] ? look_up_lock_class+0x71/0x110 [ 84.989613][ T4410] ? add_chain_block+0x940/0x940 [ 84.994623][ T4410] ? lockdep_lock+0xf1/0x1f0 [ 84.999255][ T4410] ? __lock_acquire+0x12e8/0x7d10 [ 85.004313][ T4410] ? mark_lock+0x94/0x320 [ 85.008676][ T4410] __lock_acquire+0x2c42/0x7d10 [ 85.013581][ T4410] ? verify_lock_unused+0x140/0x140 [ 85.018815][ T4410] ? mark_lock+0x94/0x320 [ 85.023186][ T4410] ? verify_lock_unused+0x140/0x140 [ 85.028418][ T4410] ? __lock_acquire+0x12e8/0x7d10 [ 85.033499][ T4410] lock_acquire+0x19e/0x400 [ 85.038123][ T4410] ? __flush_work+0xfa/0x210 [ 85.042747][ T4410] ? __lock_acquire+0x7d10/0x7d10 [ 85.047813][ T4410] ? read_lock_is_recursive+0x10/0x10 [ 85.053221][ T4410] ? start_flush_work+0x776/0x820 [ 85.058288][ T4410] __flush_work+0x116/0x210 [ 85.062831][ T4410] ? __flush_work+0xfa/0x210 [ 85.067463][ T4410] ? flush_work+0x20/0x20 [ 85.071825][ T4410] ? try_to_grab_pending+0xfa/0x7f0 [ 85.077059][ T4410] ? mark_lock+0x94/0x320 [ 85.081424][ T4410] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.087448][ T4410] ? lock_chain_count+0x20/0x20 [ 85.092339][ T4410] ? mark_lock+0x94/0x320 [ 85.096703][ T4410] ? __cancel_work_timer+0x36a/0x560 [ 85.102019][ T4410] __cancel_work_timer+0x3f4/0x560 [ 85.107167][ T4410] ? cancel_work_sync+0x20/0x20 [ 85.112044][ T4410] ? __cancel_work+0x1f9/0x2e0 [ 85.116837][ T4410] ? lockdep_hardirqs_on+0x94/0x140 [ 85.122073][ T4410] ? __cancel_work+0x27b/0x2e0 [ 85.126872][ T4410] ? cancel_work+0x20/0x20 [ 85.131410][ T4410] ? lock_chain_count+0x20/0x20 [ 85.136306][ T4410] hci_request_cancel_all+0xcc/0x300 [ 85.141629][ T4410] hci_dev_do_close+0x4e/0x1030 [ 85.146519][ T4410] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 85.152448][ T4410] ? _raw_spin_unlock+0x40/0x40 [ 85.157350][ T4410] hci_rfkill_set_block+0x10a/0x190 [ 85.162590][ T4410] ? rcu_lock_release+0x20/0x20 [ 85.167478][ T4410] rfkill_set_block+0x1c9/0x3d0 [ 85.172368][ T4410] rfkill_fop_write+0x452/0x560 [ 85.177248][ T4410] ? rfkill_fop_read+0x520/0x520 [ 85.182227][ T4410] ? common_file_perm+0xc0/0x1c0 [ 85.187212][ T4410] ? fsnotify_perm+0x5d/0x560 [ 85.191924][ T4410] ? security_file_permission+0x75/0xa0 [ 85.197504][ T4410] ? rfkill_fop_read+0x520/0x520 [ 85.202473][ T4410] vfs_write+0x30b/0xd60 [ 85.206747][ T4410] ? file_end_write+0x250/0x250 [ 85.211632][ T4410] ? __context_tracking_exit+0x4c/0x80 [ 85.217132][ T4410] ? __lock_acquire+0x7d10/0x7d10 [ 85.222203][ T4410] ? __fdget_pos+0x1e2/0x370 [ 85.226829][ T4410] ksys_write+0x152/0x260 [ 85.231196][ T4410] ? __ia32_sys_read+0x80/0x80 [ 85.235998][ T4410] ? lockdep_hardirqs_on+0x94/0x140 [ 85.241234][ T4410] do_syscall_64+0x4c/0xa0 [ 85.245681][ T4410] ? clear_bhb_loop+0x30/0x80 [ 85.250395][ T4410] ? clear_bhb_loop+0x30/0x80 [ 85.255105][ T4410] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.261049][ T4410] RIP: 0033:0x7f0451d44e59 [ 85.265487][ T4410] 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 [ 85.282302][ T4230] Bluetooth: hci0: command 0x041b tx timeout [ 85.285124][ T4410] RSP: 002b:00007ffefaa63b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.299552][ T4410] RAX: ffffffffffffffda RBX: 00007f0451fbdfa0 RCX: 00007f0451d44e59 [ 85.307559][ T4410] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 85.315565][ T4410] RBP: 00007f0451ddad6f R08: 0000000000000000 R09: 0000000000000000 [ 85.323568][ T4410] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.331573][ T4410] R13: 00007f0451fbdfac R14: 00007f0451fbdfa0 R15: 00007f0451fbdfa0 [ 85.339864][ T4410] [ 85.365239][ T446] ODEBUG: Out of memory. ODEBUG disabled