Warning: Permanently added '10.128.1.212' (ED25519) to the list of known hosts. 2026/01/10 17:41:52 parsed 1 programs [ 73.655172][ T4193] cgroup: Unknown subsys name 'net' [ 73.803893][ T4193] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 75.235357][ T4193] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 77.606455][ T4230] chnl_net:caif_netlink_parms(): no params data found [ 77.670847][ T4230] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.679803][ T4230] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.688276][ T4230] device bridge_slave_0 entered promiscuous mode [ 77.699199][ T4230] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.706343][ T4230] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.714576][ T4230] device bridge_slave_1 entered promiscuous mode [ 77.745414][ T4230] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.757276][ T4230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.789913][ T4230] team0: Port device team_slave_0 added [ 77.798054][ T4230] team0: Port device team_slave_1 added [ 77.822997][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.831420][ T4230] 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. [ 77.858799][ T4230] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.871943][ T4230] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.880018][ T4230] 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. [ 77.906012][ T4230] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.944513][ T4230] device hsr_slave_0 entered promiscuous mode [ 77.951445][ T4230] device hsr_slave_1 entered promiscuous mode [ 78.077926][ T4230] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.090174][ T4230] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.100198][ T4230] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.109975][ T4230] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.187394][ T4230] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.201031][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.214073][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.222340][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.234840][ T4230] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.245857][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.256023][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.266094][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.273383][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.285564][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.297609][ T1200] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.307735][ T1200] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.316442][ T1200] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.323555][ T1200] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.350572][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.361115][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.373402][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.383183][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.393500][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.412141][ T1200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.424417][ T1200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.436429][ T4230] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.555425][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.564133][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.576870][ T4230] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.598739][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.620538][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.630690][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.639780][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.650716][ T4230] device veth0_vlan entered promiscuous mode [ 78.672538][ T4230] device veth1_vlan entered promiscuous mode [ 78.697558][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.705961][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.714627][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.725852][ T4230] device veth0_macvtap entered promiscuous mode [ 78.736524][ T4230] device veth1_macvtap entered promiscuous mode [ 78.748785][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.764228][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.773017][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.782539][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.794766][ T4230] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.803605][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.812627][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.824764][ T4230] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.833994][ T4230] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.843305][ T4230] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.852484][ T4230] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.972684][ T4230] syz-executor (4230) used greatest stack depth: 20928 bytes left [ 79.082948][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.091169][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.102375][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.154470][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.162904][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.171613][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/01/10 17:42:02 executed programs: 0 [ 80.955068][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 81.020272][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.027423][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.036857][ T4293] device bridge_slave_0 entered promiscuous mode [ 81.046695][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.055254][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.064852][ T4293] device bridge_slave_1 entered promiscuous mode [ 81.096832][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.111230][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.146500][ T4293] team0: Port device team_slave_0 added [ 81.155613][ T4293] team0: Port device team_slave_1 added [ 81.182854][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.191317][ T4293] 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. [ 81.219374][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.231968][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.239227][ T4293] 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. [ 81.265350][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.304060][ T4293] device hsr_slave_0 entered promiscuous mode [ 81.311023][ T4293] device hsr_slave_1 entered promiscuous mode [ 81.317638][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 81.326126][ T4293] Cannot create hsr debugfs directory [ 81.409285][ T4293] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.460121][ T1107] cfg80211: failed to load regulatory.db [ 82.818609][ T1107] Bluetooth: hci0: command 0x0409 tx timeout [ 83.813464][ T4293] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.894793][ T4293] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.978261][ T4293] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.276359][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 84.290555][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 84.330109][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 84.339389][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 84.391571][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.422230][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.430359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.441681][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.466800][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.475988][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.484703][ T1232] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.491824][ T1232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.501357][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.514201][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.523016][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.531774][ T1232] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.538902][ T1232] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.554497][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.563576][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.590857][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.600805][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.609658][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.621287][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.631521][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.646859][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.659103][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.671223][ T4293] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.683830][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.700489][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.709202][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.761575][ T9] device hsr_slave_0 left promiscuous mode [ 84.768682][ T9] device hsr_slave_1 left promiscuous mode [ 84.775287][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 84.784001][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 84.793566][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 84.802265][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 84.810043][ T9] device bridge_slave_1 left promiscuous mode [ 84.816828][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.831476][ T9] device bridge_slave_0 left promiscuous mode [ 84.837658][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.855180][ T9] device veth1_macvtap left promiscuous mode [ 84.861447][ T9] device veth0_macvtap left promiscuous mode [ 84.867497][ T9] device veth1_vlan left promiscuous mode [ 84.873875][ T9] device veth0_vlan left promiscuous mode [ 84.900789][ T4261] Bluetooth: hci0: command 0x041b tx timeout [ 85.046627][ T9] team0 (unregistering): Port device team_slave_1 removed [ 85.060916][ T9] team0 (unregistering): Port device team_slave_0 removed [ 85.072989][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 85.086667][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 85.143820][ T9] bond0 (unregistering): Released all slaves [ 85.262470][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 85.270957][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 85.282846][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.303616][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 85.312424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 85.334737][ T4293] device veth0_vlan entered promiscuous mode [ 85.342097][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 85.350811][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 85.359868][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 85.367643][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 85.386064][ T4293] device veth1_vlan entered promiscuous mode [ 85.405391][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 85.414154][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.424148][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 85.433074][ T1232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.445348][ T4293] device veth0_macvtap entered promiscuous mode [ 85.458685][ T4293] device veth1_macvtap entered promiscuous mode [ 85.482411][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.490550][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.499489][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.511289][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.521236][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.531036][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.540565][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.549769][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.559838][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.569240][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.625953][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.638881][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.650190][ T4306] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.673312][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.682477][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.693199][ T4306] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.733245][ T4317] [ 85.735622][ T4317] ====================================================== [ 85.742655][ T4317] WARNING: possible circular locking dependency detected [ 85.749690][ T4317] syzkaller #0 Not tainted [ 85.754119][ T4317] ------------------------------------------------------ [ 85.761149][ T4317] syz.0.17/4317 is trying to acquire lock: [ 85.766979][ T4317] ffff888076b74c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 85.778158][ T4317] [ 85.778158][ T4317] but task is already holding lock: [ 85.785536][ T4317] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 85.795217][ T4317] [ 85.795217][ T4317] which lock already depends on the new lock. [ 85.795217][ T4317] [ 85.805625][ T4317] [ 85.805625][ T4317] the existing dependency chain (in reverse order) is: [ 85.814650][ T4317] [ 85.814650][ T4317] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.822667][ T4317] __mutex_lock_common+0x1eb/0x2390 [ 85.828537][ T4317] mutex_lock_nested+0x17/0x20 [ 85.833853][ T4317] rfkill_register+0x33/0x8a0 [ 85.839073][ T4317] hci_register_dev+0x452/0x970 [ 85.844477][ T4317] vhci_create_device+0x32c/0x5c0 [ 85.850052][ T4317] vhci_write+0x391/0x450 [ 85.854923][ T4317] vfs_write+0x712/0xd00 [ 85.859711][ T4317] ksys_write+0x14d/0x250 [ 85.864581][ T4317] do_syscall_64+0x4c/0xa0 [ 85.869534][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.875971][ T4317] [ 85.875971][ T4317] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.883808][ T4317] __mutex_lock_common+0x1eb/0x2390 [ 85.889551][ T4317] mutex_lock_nested+0x17/0x20 [ 85.894848][ T4317] vhci_send_frame+0x88/0x100 [ 85.900085][ T4317] hci_send_frame+0x1a9/0x2e0 [ 85.905297][ T4317] hci_tx_work+0x9f9/0x1710 [ 85.910362][ T4317] process_one_work+0x863/0x1000 [ 85.915832][ T4317] worker_thread+0xaa8/0x12a0 [ 85.921075][ T4317] kthread+0x436/0x520 [ 85.925698][ T4317] ret_from_fork+0x1f/0x30 [ 85.930655][ T4317] [ 85.930655][ T4317] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.939884][ T4317] __flush_work+0xdd/0x1b0 [ 85.944845][ T4317] hci_dev_do_close+0x1e7/0x1030 [ 85.950324][ T4317] hci_unregister_dev+0x2d7/0x580 [ 85.955891][ T4317] vhci_release+0x73/0xc0 [ 85.960762][ T4317] __fput+0x234/0x930 [ 85.965299][ T4317] task_work_run+0x125/0x1a0 [ 85.970435][ T4317] do_exit+0x61e/0x20a0 [ 85.975150][ T4317] do_group_exit+0x12e/0x300 [ 85.980282][ T4317] get_signal+0x6ca/0x12c0 [ 85.985471][ T4317] arch_do_signal_or_restart+0xc1/0x1300 [ 85.991653][ T4317] exit_to_user_mode_loop+0x9e/0x130 [ 85.997480][ T4317] exit_to_user_mode_prepare+0xee/0x180 [ 86.003574][ T4317] syscall_exit_to_user_mode+0x16/0x40 [ 86.009587][ T4317] do_syscall_64+0x58/0xa0 [ 86.014637][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.021073][ T4317] [ 86.021073][ T4317] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 86.028747][ T4317] __mutex_lock_common+0x1eb/0x2390 [ 86.034503][ T4317] mutex_lock_nested+0x17/0x20 [ 86.039899][ T4317] bg_scan_update+0x44/0x3b0 [ 86.045032][ T4317] process_one_work+0x863/0x1000 [ 86.050504][ T4317] worker_thread+0xaa8/0x12a0 [ 86.055721][ T4317] kthread+0x436/0x520 [ 86.060328][ T4317] ret_from_fork+0x1f/0x30 [ 86.065284][ T4317] [ 86.065284][ T4317] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 86.075122][ T4317] __lock_acquire+0x2c33/0x7c60 [ 86.080519][ T4317] lock_acquire+0x197/0x3f0 [ 86.085557][ T4317] __flush_work+0xdd/0x1b0 [ 86.090510][ T4317] __cancel_work_timer+0x3ac/0x520 [ 86.096152][ T4317] hci_request_cancel_all+0xcc/0x300 [ 86.101974][ T4317] hci_dev_do_close+0x4e/0x1030 [ 86.107366][ T4317] hci_rfkill_set_block+0x10a/0x190 [ 86.113100][ T4317] rfkill_set_block+0x1c6/0x420 [ 86.118494][ T4317] rfkill_fop_write+0x458/0x560 [ 86.123905][ T4317] vfs_write+0x300/0xd00 [ 86.128685][ T4317] ksys_write+0x14d/0x250 [ 86.133558][ T4317] do_syscall_64+0x4c/0xa0 [ 86.138523][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.145052][ T4317] [ 86.145052][ T4317] other info that might help us debug this: [ 86.145052][ T4317] [ 86.155288][ T4317] Chain exists of: [ 86.155288][ T4317] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 86.155288][ T4317] [ 86.171035][ T4317] Possible unsafe locking scenario: [ 86.171035][ T4317] [ 86.178520][ T4317] CPU0 CPU1 [ 86.183895][ T4317] ---- ---- [ 86.189265][ T4317] lock(rfkill_global_mutex); [ 86.194050][ T4317] lock(&data->open_mutex); [ 86.201190][ T4317] lock(rfkill_global_mutex); [ 86.208494][ T4317] lock((work_completion)(&hdev->bg_scan_update)); [ 86.215203][ T4317] [ 86.215203][ T4317] *** DEADLOCK *** [ 86.215203][ T4317] [ 86.223353][ T4317] 1 lock held by syz.0.17/4317: [ 86.228216][ T4317] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 86.238339][ T4317] [ 86.238339][ T4317] stack backtrace: [ 86.244244][ T4317] CPU: 0 PID: 4317 Comm: syz.0.17 Not tainted syzkaller #0 [ 86.251454][ T4317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 86.261535][ T4317] Call Trace: [ 86.264829][ T4317] [ 86.267780][ T4317] dump_stack_lvl+0x168/0x230 [ 86.272484][ T4317] ? load_image+0x3b0/0x3b0 [ 86.277026][ T4317] ? show_regs_print_info+0x20/0x20 [ 86.282243][ T4317] ? print_circular_bug+0x12b/0x1a0 [ 86.287462][ T4317] check_noncircular+0x274/0x310 [ 86.292531][ T4317] ? add_chain_block+0x940/0x940 [ 86.297480][ T4317] ? lockdep_lock+0xdc/0x1e0 [ 86.302098][ T4317] ? __lock_acquire+0x12d9/0x7c60 [ 86.307143][ T4317] ? lockdep_lock+0x1e0/0x1e0 [ 86.311843][ T4317] ? mark_lock+0x94/0x320 [ 86.316193][ T4317] __lock_acquire+0x2c33/0x7c60 [ 86.321073][ T4317] ? verify_lock_unused+0x140/0x140 [ 86.326302][ T4317] ? verify_lock_unused+0x140/0x140 [ 86.331524][ T4317] lock_acquire+0x197/0x3f0 [ 86.336044][ T4317] ? __flush_work+0xc1/0x1b0 [ 86.340694][ T4317] ? __lock_acquire+0x7c60/0x7c60 [ 86.345745][ T4317] ? read_lock_is_recursive+0x10/0x10 [ 86.351132][ T4317] ? start_flush_work+0x776/0x820 [ 86.356191][ T4317] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.362101][ T4317] ? _raw_spin_unlock+0x40/0x40 [ 86.366978][ T4317] __flush_work+0xdd/0x1b0 [ 86.371404][ T4317] ? __flush_work+0xc1/0x1b0 [ 86.376011][ T4317] ? flush_work+0x20/0x20 [ 86.380360][ T4317] ? try_to_grab_pending+0xf3/0x7e0 [ 86.385576][ T4317] ? lockdep_hardirqs_off+0x70/0x100 [ 86.390902][ T4317] ? mark_lock+0x94/0x320 [ 86.395264][ T4317] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 86.401263][ T4317] ? lock_chain_count+0x20/0x20 [ 86.406159][ T4317] ? mark_lock+0x94/0x320 [ 86.410513][ T4317] ? __cancel_work_timer+0x331/0x520 [ 86.415815][ T4317] __cancel_work_timer+0x3ac/0x520 [ 86.420949][ T4317] ? cancel_work_sync+0x20/0x20 [ 86.425816][ T4317] ? __cancel_work+0x1f4/0x2d0 [ 86.430603][ T4317] ? lockdep_hardirqs_on+0x94/0x140 [ 86.435831][ T4317] ? __cancel_work+0x26f/0x2d0 [ 86.440640][ T4317] ? cancel_work+0x20/0x20 [ 86.445071][ T4317] ? lock_chain_count+0x20/0x20 [ 86.449946][ T4317] hci_request_cancel_all+0xcc/0x300 [ 86.455280][ T4317] hci_dev_do_close+0x4e/0x1030 [ 86.460305][ T4317] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 86.466228][ T4317] ? _raw_spin_unlock+0x40/0x40 [ 86.471096][ T4317] hci_rfkill_set_block+0x10a/0x190 [ 86.476323][ T4317] ? rcu_lock_release+0x20/0x20 [ 86.481283][ T4317] rfkill_set_block+0x1c6/0x420 [ 86.486169][ T4317] rfkill_fop_write+0x458/0x560 [ 86.491078][ T4317] ? verify_lock_unused+0x140/0x140 [ 86.496305][ T4317] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.501256][ T4317] ? common_file_perm+0xc0/0x1c0 [ 86.506307][ T4317] ? fsnotify_perm+0x5d/0x560 [ 86.511103][ T4317] ? security_file_permission+0x75/0xa0 [ 86.516667][ T4317] ? rfkill_fop_read+0x4b0/0x4b0 [ 86.521625][ T4317] vfs_write+0x300/0xd00 [ 86.525898][ T4317] ? file_end_write+0x250/0x250 [ 86.530774][ T4317] ? __context_tracking_exit+0x4c/0x80 [ 86.536254][ T4317] ? __lock_acquire+0x7c60/0x7c60 [ 86.541321][ T4317] ? __fdget_pos+0x1e2/0x370 [ 86.545938][ T4317] ksys_write+0x14d/0x250 [ 86.550291][ T4317] ? __ia32_sys_read+0x80/0x80 [ 86.555079][ T4317] ? lockdep_hardirqs_on+0x94/0x140 [ 86.560339][ T4317] do_syscall_64+0x4c/0xa0 [ 86.564790][ T4317] ? clear_bhb_loop+0x30/0x80 [ 86.569489][ T4317] ? clear_bhb_loop+0x30/0x80 [ 86.574301][ T4317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.580318][ T4317] RIP: 0033:0x7f4ee78b9749 [ 86.584765][ T4317] 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 [ 86.604415][ T4317] RSP: 002b:00007ffc6070f248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.612850][ T4317] RAX: ffffffffffffffda RBX: 00007f4ee7b0ffa0 RCX: 00007f4ee78b9749 [ 86.620837][ T4317] RDX: 0000000000000008 RSI: 0000200000000300 RDI: 0000000000000003 [ 86.628817][ T4317] RBP: 00007f4ee793df91 R08: 0000000000000000 R09: 0000000000000000 [ 86.636805][ T4317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.644793][ T4317] R13: 00007f4ee7b0ffa0 R14: 00007f4ee7b0ffa0 R15: 0000000000000003 [ 86.652795][ T4317]