Warning: Permanently added '10.128.1.178' (ED25519) to the list of known hosts. 2025/09/29 03:44:45 parsed 1 programs [ 70.217969][ T4189] cgroup: Unknown subsys name 'net' [ 70.368590][ T4189] cgroup: Unknown subsys name 'rlimit' [ 71.546131][ T1433] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.552814][ T1433] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.897711][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.074564][ T4213] chnl_net:caif_netlink_parms(): no params data found [ 74.127368][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.135099][ T4213] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.143289][ T4213] device bridge_slave_0 entered promiscuous mode [ 74.152632][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.159783][ T4213] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.167990][ T4213] device bridge_slave_1 entered promiscuous mode [ 74.193360][ T4213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.204744][ T4213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.237913][ T4213] team0: Port device team_slave_0 added [ 74.247356][ T4213] team0: Port device team_slave_1 added [ 74.276712][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.283793][ T4213] 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. [ 74.312092][ T4213] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.325614][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.334064][ T4213] 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. [ 74.361756][ T4213] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.404204][ T4213] device hsr_slave_0 entered promiscuous mode [ 74.411315][ T4213] device hsr_slave_1 entered promiscuous mode [ 74.553513][ T4213] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.566058][ T4213] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.577051][ T4213] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.587476][ T4213] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.624365][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.631837][ T4213] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.639862][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.647216][ T4213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.713960][ T4213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.728445][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.741331][ T374] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.751264][ T374] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.761108][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.777808][ T4213] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.791802][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.801012][ T374] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.808191][ T374] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.835149][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.845669][ T374] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.852820][ T374] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.862801][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.874248][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.888657][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.908831][ T4213] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.921944][ T4213] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.936703][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.947141][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.964743][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.084992][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.093283][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.107554][ T4213] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.133397][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.154723][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.178838][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.188349][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.197737][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.205887][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.217723][ T4213] device veth0_vlan entered promiscuous mode [ 75.231991][ T4213] device veth1_vlan entered promiscuous mode [ 75.257983][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.266950][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.275835][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.286658][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.298482][ T4213] device veth0_macvtap entered promiscuous mode [ 75.309557][ T4213] device veth1_macvtap entered promiscuous mode [ 75.328342][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.337070][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.347131][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.355508][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.365943][ T374] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.378008][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.396659][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.406436][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.418021][ T4213] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.428395][ T4213] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.437734][ T4213] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.446987][ T4213] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.550042][ T4213] syz-executor (4213) used greatest stack depth: 21152 bytes left [ 75.733725][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.099554][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.436826][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.489119][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.806035][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.831001][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.876241][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.889010][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.900521][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.925846][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.496862][ T154] device hsr_slave_0 left promiscuous mode [ 81.509284][ T154] device hsr_slave_1 left promiscuous mode [ 81.523375][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.531104][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.540089][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.548326][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.575777][ T154] device bridge_slave_1 left promiscuous mode [ 81.585564][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.605173][ T154] device bridge_slave_0 left promiscuous mode [ 81.611555][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.646765][ T154] device veth1_macvtap left promiscuous mode [ 81.662101][ T154] device veth0_macvtap left promiscuous mode [ 81.668230][ T154] device veth1_vlan left promiscuous mode [ 81.692718][ T154] device veth0_vlan left promiscuous mode [ 81.974642][ T154] team0 (unregistering): Port device team_slave_1 removed [ 81.989726][ T154] team0 (unregistering): Port device team_slave_0 removed [ 82.006246][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.025653][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.105389][ T154] bond0 (unregistering): Released all slaves 2025/09/29 03:45:00 executed programs: 0 [ 83.388931][ T4340] chnl_net:caif_netlink_parms(): no params data found [ 83.513180][ T4340] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.521369][ T4340] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.529749][ T4340] device bridge_slave_0 entered promiscuous mode [ 83.538779][ T4340] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.547576][ T4340] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.556002][ T4340] device bridge_slave_1 entered promiscuous mode [ 83.597218][ T4340] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.624333][ T4340] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 83.687669][ T4340] team0: Port device team_slave_0 added [ 83.704224][ T4340] team0: Port device team_slave_1 added [ 83.764475][ T4340] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 83.771679][ T4340] 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. [ 83.831650][ T4340] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.853738][ T4340] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.860740][ T4340] 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. [ 83.920823][ T4340] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.996682][ T4340] device hsr_slave_0 entered promiscuous mode [ 84.005587][ T4340] device hsr_slave_1 entered promiscuous mode [ 84.680648][ T4340] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 84.699857][ T4340] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 84.717450][ T4340] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 84.729362][ T4340] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.881848][ T4340] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.905526][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.922537][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.941332][ T4340] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.961189][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.970782][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.989624][ T1236] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.996808][ T1236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.023400][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.032709][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 85.050418][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.060493][ T1236] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.067841][ T1236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.093413][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 85.120578][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 85.137768][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 85.168045][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 85.178935][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 85.196318][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.208484][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.219063][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 85.229850][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.238465][ T4428] Bluetooth: hci0: command 0x0409 tx timeout [ 85.265461][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 85.283983][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 85.297595][ T4340] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.517221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 85.526033][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 85.557283][ T4340] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.595863][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 85.605462][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 85.638794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 85.657310][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 85.668413][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 85.681282][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 85.691300][ T4340] device veth0_vlan entered promiscuous mode [ 85.705518][ T4340] device veth1_vlan entered promiscuous mode [ 85.754355][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 85.772981][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.791242][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 85.805177][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.818456][ T4340] device veth0_macvtap entered promiscuous mode [ 85.836492][ T4340] device veth1_macvtap entered promiscuous mode [ 85.875375][ T4340] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.891785][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.903419][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 85.923709][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.952439][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.988516][ T4340] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.039844][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 86.050840][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 86.063659][ T4340] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.073127][ T4340] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.083032][ T4340] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.092199][ T4340] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.198930][ T4452] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.224112][ T4452] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.271340][ T4450] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 86.299212][ T4450] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.324613][ T4450] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.363678][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 86.531002][ T4468] [ 86.533398][ T4468] ====================================================== [ 86.540429][ T4468] WARNING: possible circular locking dependency detected [ 86.547482][ T4468] syzkaller #0 Not tainted [ 86.551924][ T4468] ------------------------------------------------------ [ 86.559077][ T4468] syz.0.17/4468 is trying to acquire lock: [ 86.564898][ T4468] ffff888029a68c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 86.576003][ T4468] [ 86.576003][ T4468] but task is already holding lock: [ 86.583510][ T4468] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.593304][ T4468] [ 86.593304][ T4468] which lock already depends on the new lock. [ 86.593304][ T4468] [ 86.603724][ T4468] [ 86.603724][ T4468] the existing dependency chain (in reverse order) is: [ 86.612774][ T4468] [ 86.612774][ T4468] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 86.620894][ T4468] __mutex_lock_common+0x1eb/0x2390 [ 86.626666][ T4468] mutex_lock_nested+0x17/0x20 [ 86.632160][ T4468] rfkill_register+0x33/0x8a0 [ 86.637402][ T4468] hci_register_dev+0x452/0x970 [ 86.642814][ T4468] vhci_create_device+0x32c/0x5c0 [ 86.648395][ T4468] vhci_write+0x391/0x450 [ 86.653296][ T4468] vfs_write+0x712/0xd00 [ 86.658083][ T4468] ksys_write+0x14d/0x250 [ 86.662964][ T4468] do_syscall_64+0x4c/0xa0 [ 86.667931][ T4468] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.674627][ T4468] [ 86.674627][ T4468] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 86.682596][ T4468] __mutex_lock_common+0x1eb/0x2390 [ 86.688526][ T4468] mutex_lock_nested+0x17/0x20 [ 86.693958][ T4468] vhci_send_frame+0x88/0x100 [ 86.699317][ T4468] hci_send_frame+0x1a9/0x2e0 [ 86.704552][ T4468] hci_tx_work+0x9f9/0x1710 [ 86.709634][ T4468] process_one_work+0x863/0x1000 [ 86.715118][ T4468] worker_thread+0xaa8/0x12a0 [ 86.720341][ T4468] kthread+0x436/0x520 [ 86.724953][ T4468] ret_from_fork+0x1f/0x30 [ 86.730166][ T4468] [ 86.730166][ T4468] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 86.739483][ T4468] __flush_work+0xdd/0x1b0 [ 86.744564][ T4468] hci_dev_do_close+0x1e7/0x1030 [ 86.750056][ T4468] hci_unregister_dev+0x2d7/0x580 [ 86.755638][ T4468] vhci_release+0x73/0xc0 [ 86.760534][ T4468] __fput+0x234/0x930 [ 86.765074][ T4468] task_work_run+0x125/0x1a0 [ 86.770365][ T4468] do_exit+0x61e/0x20a0 [ 86.775345][ T4468] do_group_exit+0x12e/0x300 [ 86.780590][ T4468] get_signal+0x6ca/0x12c0 [ 86.785726][ T4468] arch_do_signal_or_restart+0xc1/0x1300 [ 86.791916][ T4468] exit_to_user_mode_loop+0x9e/0x130 [ 86.797756][ T4468] exit_to_user_mode_prepare+0xee/0x180 [ 86.803948][ T4468] syscall_exit_to_user_mode+0x16/0x40 [ 86.809963][ T4468] do_syscall_64+0x58/0xa0 [ 86.814938][ T4468] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.821386][ T4468] [ 86.821386][ T4468] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 86.829058][ T4468] __mutex_lock_common+0x1eb/0x2390 [ 86.834899][ T4468] mutex_lock_nested+0x17/0x20 [ 86.840302][ T4468] bg_scan_update+0x44/0x3b0 [ 86.845450][ T4468] process_one_work+0x863/0x1000 [ 86.850940][ T4468] worker_thread+0xaa8/0x12a0 [ 86.856166][ T4468] kthread+0x436/0x520 [ 86.860783][ T4468] ret_from_fork+0x1f/0x30 [ 86.865747][ T4468] [ 86.865747][ T4468] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.875593][ T4468] __lock_acquire+0x2c33/0x7c60 [ 86.881006][ T4468] lock_acquire+0x197/0x3f0 [ 86.886063][ T4468] __flush_work+0xdd/0x1b0 [ 86.891243][ T4468] __cancel_work_timer+0x3ac/0x520 [ 86.896906][ T4468] hci_request_cancel_all+0xcc/0x300 [ 86.902843][ T4468] hci_dev_do_close+0x4e/0x1030 [ 86.908377][ T4468] hci_rfkill_set_block+0x10a/0x190 [ 86.914257][ T4468] rfkill_set_block+0x1c6/0x420 [ 86.919743][ T4468] rfkill_fop_write+0x458/0x560 [ 86.925471][ T4468] do_iter_write+0x3e4/0x7b0 [ 86.930613][ T4468] do_writev+0x254/0x410 [ 86.935404][ T4468] do_syscall_64+0x4c/0xa0 [ 86.940596][ T4468] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.947048][ T4468] [ 86.947048][ T4468] other info that might help us debug this: [ 86.947048][ T4468] [ 86.957301][ T4468] Chain exists of: [ 86.957301][ T4468] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.957301][ T4468] [ 86.973146][ T4468] Possible unsafe locking scenario: [ 86.973146][ T4468] [ 86.980816][ T4468] CPU0 CPU1 [ 86.986211][ T4468] ---- ---- [ 86.991691][ T4468] lock(rfkill_global_mutex); [ 86.996496][ T4468] lock(&data->open_mutex); [ 87.003738][ T4468] lock(rfkill_global_mutex); [ 87.011310][ T4468] lock((work_completion)(&hdev->bg_scan_update)); [ 87.017926][ T4468] [ 87.017926][ T4468] *** DEADLOCK *** [ 87.017926][ T4468] [ 87.026090][ T4468] 1 lock held by syz.0.17/4468: [ 87.031050][ T4468] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 87.041398][ T4468] [ 87.041398][ T4468] stack backtrace: [ 87.047465][ T4468] CPU: 0 PID: 4468 Comm: syz.0.17 Not tainted syzkaller #0 [ 87.054691][ T4468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 87.065015][ T4468] Call Trace: [ 87.068448][ T4468] [ 87.071494][ T4468] dump_stack_lvl+0x168/0x230 [ 87.076206][ T4468] ? load_image+0x3b0/0x3b0 [ 87.080750][ T4468] ? show_regs_print_info+0x20/0x20 [ 87.085988][ T4468] ? print_circular_bug+0x12b/0x1a0 [ 87.091225][ T4468] check_noncircular+0x274/0x310 [ 87.096200][ T4468] ? add_chain_block+0x940/0x940 [ 87.101164][ T4468] ? lockdep_lock+0xdc/0x1e0 [ 87.105798][ T4468] ? __lock_acquire+0x12d9/0x7c60 [ 87.110868][ T4468] ? lockdep_lock+0x1e0/0x1e0 [ 87.115721][ T4468] ? mark_lock+0x94/0x320 [ 87.120096][ T4468] __lock_acquire+0x2c33/0x7c60 [ 87.125005][ T4468] ? verify_lock_unused+0x140/0x140 [ 87.130239][ T4468] ? verify_lock_unused+0x140/0x140 [ 87.135482][ T4468] lock_acquire+0x197/0x3f0 [ 87.140107][ T4468] ? __flush_work+0xc1/0x1b0 [ 87.144727][ T4468] ? __lock_acquire+0x7c60/0x7c60 [ 87.149891][ T4468] ? read_lock_is_recursive+0x10/0x10 [ 87.155632][ T4468] ? start_flush_work+0x776/0x820 [ 87.160689][ T4468] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 87.166736][ T4468] ? _raw_spin_unlock+0x40/0x40 [ 87.171769][ T4468] __flush_work+0xdd/0x1b0 [ 87.176216][ T4468] ? __flush_work+0xc1/0x1b0 [ 87.180834][ T4468] ? flush_work+0x20/0x20 [ 87.185190][ T4468] ? try_to_grab_pending+0xf3/0x7e0 [ 87.190591][ T4468] ? lockdep_hardirqs_off+0x70/0x100 [ 87.196017][ T4468] ? mark_lock+0x94/0x320 [ 87.200423][ T4468] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 87.206458][ T4468] ? lock_chain_count+0x20/0x20 [ 87.211344][ T4468] ? mark_lock+0x94/0x320 [ 87.215848][ T4468] ? __cancel_work_timer+0x331/0x520 [ 87.221344][ T4468] __cancel_work_timer+0x3ac/0x520 [ 87.226529][ T4468] ? cancel_work_sync+0x20/0x20 [ 87.231415][ T4468] ? __cancel_work+0x1f4/0x2d0 [ 87.236212][ T4468] ? lockdep_hardirqs_on+0x94/0x140 [ 87.241456][ T4468] ? __cancel_work+0x26f/0x2d0 [ 87.246302][ T4468] ? cancel_work+0x20/0x20 [ 87.250756][ T4468] ? lock_chain_count+0x20/0x20 [ 87.255654][ T4468] hci_request_cancel_all+0xcc/0x300 [ 87.260982][ T4468] hci_dev_do_close+0x4e/0x1030 [ 87.265878][ T4468] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 87.271811][ T4468] ? _raw_spin_unlock+0x40/0x40 [ 87.276699][ T4468] hci_rfkill_set_block+0x10a/0x190 [ 87.282013][ T4468] ? rcu_lock_release+0x20/0x20 [ 87.286894][ T4468] rfkill_set_block+0x1c6/0x420 [ 87.291788][ T4468] rfkill_fop_write+0x458/0x560 [ 87.296668][ T4468] ? _copy_from_user+0x111/0x170 [ 87.301638][ T4468] ? rfkill_fop_read+0x4b0/0x4b0 [ 87.306605][ T4468] ? common_file_perm+0x171/0x1c0 [ 87.311662][ T4468] ? fsnotify_perm+0x5d/0x560 [ 87.316374][ T4468] ? security_file_permission+0x75/0xa0 [ 87.322065][ T4468] do_iter_write+0x3e4/0x7b0 [ 87.326688][ T4468] do_writev+0x254/0x410 [ 87.330967][ T4468] ? do_readv+0x3e0/0x3e0 [ 87.335428][ T4468] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 87.341529][ T4468] ? lock_chain_count+0x20/0x20 [ 87.346422][ T4468] ? vtime_user_exit+0x2dc/0x400 [ 87.351403][ T4468] ? lockdep_hardirqs_on+0x94/0x140 [ 87.356680][ T4468] do_syscall_64+0x4c/0xa0 [ 87.361171][ T4468] ? clear_bhb_loop+0x30/0x80 [ 87.365877][ T4468] ? clear_bhb_loop+0x30/0x80 [ 87.370583][ T4468] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.376528][ T4468] RIP: 0033:0x7f1bb0369ec9 [ 87.381359][ T4468] 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 [ 87.401146][ T4468] RSP: 002b:00007ffc95c94938 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 87.409856][ T4468] RAX: ffffffffffffffda RBX: 00007f1bb05c0fa0 RCX: 00007f1bb0369ec9 [ 87.418075][ T4468] RDX: 0000000000000001 RSI: 0000200000001280 RDI: 0000000000000003 [ 87.426075][ T4468] RBP: 00007f1bb03ecf91 R08: 0000000000000000 R09: 0000000000000000 [ 87.434080][ T4468] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.442085][ T4468] R13: 00007f1bb05c0fa0 R14: 00007f1bb05c0fa0 R15: 0000000000000003 [ 87.450122][ T4468] [ 87.455552][ T4231] Bluetooth: hci0: command 0x041b tx timeout [ 87.462956][ T1326] cfg80211: failed to load regulatory.db