Warning: Permanently added '10.128.0.70' (ED25519) to the list of known hosts. 2025/12/30 11:11:46 parsed 1 programs [ 62.429038][ T4188] cgroup: Unknown subsys name 'net' [ 62.561912][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 64.089446][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 66.325597][ T4218] chnl_net:caif_netlink_parms(): no params data found [ 66.393213][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.402515][ T4218] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.411280][ T4218] device bridge_slave_0 entered promiscuous mode [ 66.422999][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.430987][ T4218] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.441255][ T4218] device bridge_slave_1 entered promiscuous mode [ 66.473014][ T4218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.487262][ T4218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.520265][ T4218] team0: Port device team_slave_0 added [ 66.528691][ T4218] team0: Port device team_slave_1 added [ 66.557793][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.564990][ T4218] 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. [ 66.593223][ T4218] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.607925][ T4218] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.615289][ T4218] 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. [ 66.643781][ T4218] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.686637][ T4218] device hsr_slave_0 entered promiscuous mode [ 66.694259][ T4218] device hsr_slave_1 entered promiscuous mode [ 66.834902][ T4218] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.849936][ T4218] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.861672][ T4218] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.871787][ T4218] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.909350][ T4218] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.916843][ T4218] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.925069][ T4218] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.932625][ T4218] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.999508][ T4218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.020166][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.031584][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.042483][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.059188][ T4218] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.081495][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.090179][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.097502][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.111851][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.121320][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.128550][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.151689][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.162053][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.181453][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.190912][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.205349][ T4218] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.218287][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.229442][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.353985][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.361990][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.377696][ T4218] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.394105][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.404441][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.425026][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.433910][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.445419][ T4218] device veth0_vlan entered promiscuous mode [ 67.461410][ T4218] device veth1_vlan entered promiscuous mode [ 67.477060][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.484857][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.493410][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.534282][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.544444][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.554085][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.564215][ T4218] device veth0_macvtap entered promiscuous mode [ 67.585065][ T4218] device veth1_macvtap entered promiscuous mode [ 67.608327][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.616533][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.624894][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.634056][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.652962][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.665174][ T4218] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.675543][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.686962][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.697517][ T4218] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.706908][ T4218] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.715613][ T4218] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.725300][ T4218] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.819125][ T4218] syz-executor (4218) used greatest stack depth: 21152 bytes left [ 68.030902][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.039771][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.063100][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.080005][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.088538][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.098484][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/12/30 11:11:55 executed programs: 0 [ 70.135493][ T4291] chnl_net:caif_netlink_parms(): no params data found [ 70.181703][ T4291] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.190770][ T4291] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.202030][ T4291] device bridge_slave_0 entered promiscuous mode [ 70.212390][ T4291] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.221346][ T4291] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.230109][ T4291] device bridge_slave_1 entered promiscuous mode [ 70.244261][ T156] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.271440][ T4291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.284036][ T4291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.307555][ T4291] team0: Port device team_slave_0 added [ 70.314846][ T4291] team0: Port device team_slave_1 added [ 70.332761][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.339843][ T4291] 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. [ 70.366885][ T4291] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.379806][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.387012][ T4291] 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. [ 70.413911][ T4291] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.443244][ T4291] device hsr_slave_0 entered promiscuous mode [ 70.450365][ T4291] device hsr_slave_1 entered promiscuous mode [ 70.457394][ T4291] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.465320][ T4291] Cannot create hsr debugfs directory [ 71.401217][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.407867][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.046869][ T2237] Bluetooth: hci0: command 0x0409 tx timeout [ 72.582431][ T156] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.671554][ T156] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.734129][ T156] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.504937][ T4291] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.514141][ T4291] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.523710][ T4291] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.533978][ T4291] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.605832][ T4291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.618334][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.627001][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.643199][ T4291] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.674280][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.683596][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.693167][ T1453] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.700452][ T1453] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.709834][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.720571][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.729584][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.738580][ T1453] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.745989][ T1453] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.776582][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.789604][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.801506][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.811648][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.821075][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.833176][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.842572][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.854528][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.864996][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.882458][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.891271][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.902528][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.020466][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.028887][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.066968][ T4291] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.084344][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.093810][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.116421][ T4312] Bluetooth: hci0: command 0x041b tx timeout [ 74.138607][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.147846][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.156243][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.164219][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.174420][ T4291] device veth0_vlan entered promiscuous mode [ 74.202216][ T4291] device veth1_vlan entered promiscuous mode [ 74.220468][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.229051][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.237824][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.248282][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.259731][ T4291] device veth0_macvtap entered promiscuous mode [ 74.271561][ T4291] device veth1_macvtap entered promiscuous mode [ 74.302150][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.313239][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.324683][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.332941][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.341817][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.351020][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.360405][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.371967][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.383092][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.395434][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.408442][ T4291] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.417536][ T4291] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.426888][ T4291] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.435675][ T4291] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.447979][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.457382][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.550182][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.560072][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.571493][ T156] device hsr_slave_0 left promiscuous mode [ 74.578785][ T156] device hsr_slave_1 left promiscuous mode [ 74.585404][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.593085][ T156] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.603010][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.610876][ T156] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.618932][ T156] device bridge_slave_1 left promiscuous mode [ 74.626027][ T156] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.642269][ T156] device bridge_slave_0 left promiscuous mode [ 74.649076][ T156] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.666405][ T156] device veth1_macvtap left promiscuous mode [ 74.672940][ T156] device veth0_macvtap left promiscuous mode [ 74.679568][ T156] device veth1_vlan left promiscuous mode [ 74.685634][ T156] device veth0_vlan left promiscuous mode [ 74.840778][ T156] team0 (unregistering): Port device team_slave_1 removed [ 74.855372][ T156] team0 (unregistering): Port device team_slave_0 removed [ 74.871809][ T156] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.884745][ T156] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.940252][ T156] bond0 (unregistering): Released all slaves [ 74.999893][ T1453] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.015872][ T1453] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.024508][ T1453] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.043882][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.177171][ T4346] [ 75.179662][ T4346] ====================================================== [ 75.187081][ T4346] WARNING: possible circular locking dependency detected [ 75.194217][ T4346] syzkaller #0 Not tainted [ 75.198756][ T4346] ------------------------------------------------------ [ 75.206512][ T4346] syz.0.17/4346 is trying to acquire lock: [ 75.212604][ T4346] ffff888075808c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 75.224129][ T4346] [ 75.224129][ T4346] but task is already holding lock: [ 75.231773][ T4346] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 75.241647][ T4346] [ 75.241647][ T4346] which lock already depends on the new lock. [ 75.241647][ T4346] [ 75.252237][ T4346] [ 75.252237][ T4346] the existing dependency chain (in reverse order) is: [ 75.261545][ T4346] [ 75.261545][ T4346] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.269666][ T4346] __mutex_lock_common+0x1eb/0x2390 [ 75.275511][ T4346] mutex_lock_nested+0x17/0x20 [ 75.280911][ T4346] rfkill_register+0x33/0x8a0 [ 75.286223][ T4346] hci_register_dev+0x452/0x970 [ 75.291630][ T4346] vhci_create_device+0x32c/0x5c0 [ 75.297370][ T4346] vhci_write+0x391/0x450 [ 75.302235][ T4346] vfs_write+0x712/0xd00 [ 75.307116][ T4346] ksys_write+0x14d/0x250 [ 75.312256][ T4346] do_syscall_64+0x4c/0xa0 [ 75.317216][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.323728][ T4346] [ 75.323728][ T4346] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.331548][ T4346] __mutex_lock_common+0x1eb/0x2390 [ 75.337578][ T4346] mutex_lock_nested+0x17/0x20 [ 75.343097][ T4346] vhci_send_frame+0x88/0x100 [ 75.348577][ T4346] hci_send_frame+0x1a9/0x2e0 [ 75.353775][ T4346] hci_tx_work+0x9f9/0x1710 [ 75.358810][ T4346] process_one_work+0x863/0x1000 [ 75.364280][ T4346] worker_thread+0xaa8/0x12a0 [ 75.369669][ T4346] kthread+0x436/0x520 [ 75.374278][ T4346] ret_from_fork+0x1f/0x30 [ 75.379387][ T4346] [ 75.379387][ T4346] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 75.389022][ T4346] __flush_work+0xdd/0x1b0 [ 75.394326][ T4346] hci_dev_do_close+0x1e7/0x1030 [ 75.399955][ T4346] hci_unregister_dev+0x2d7/0x580 [ 75.405772][ T4346] vhci_release+0x73/0xc0 [ 75.410876][ T4346] __fput+0x234/0x930 [ 75.415393][ T4346] task_work_run+0x125/0x1a0 [ 75.420816][ T4346] do_exit+0x61e/0x20a0 [ 75.426306][ T4346] do_group_exit+0x12e/0x300 [ 75.431507][ T4346] get_signal+0x6ca/0x12c0 [ 75.436443][ T4346] arch_do_signal_or_restart+0xc1/0x1300 [ 75.442771][ T4346] exit_to_user_mode_loop+0x9e/0x130 [ 75.449008][ T4346] exit_to_user_mode_prepare+0xee/0x180 [ 75.455605][ T4346] syscall_exit_to_user_mode+0x16/0x40 [ 75.462115][ T4346] do_syscall_64+0x58/0xa0 [ 75.467235][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.473734][ T4346] [ 75.473734][ T4346] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 75.481909][ T4346] __mutex_lock_common+0x1eb/0x2390 [ 75.488152][ T4346] mutex_lock_nested+0x17/0x20 [ 75.493616][ T4346] bg_scan_update+0x44/0x3b0 [ 75.498724][ T4346] process_one_work+0x863/0x1000 [ 75.504263][ T4346] worker_thread+0xaa8/0x12a0 [ 75.509466][ T4346] kthread+0x436/0x520 [ 75.514407][ T4346] ret_from_fork+0x1f/0x30 [ 75.519349][ T4346] [ 75.519349][ T4346] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 75.529469][ T4346] __lock_acquire+0x2c33/0x7c60 [ 75.534845][ T4346] lock_acquire+0x197/0x3f0 [ 75.539976][ T4346] __flush_work+0xdd/0x1b0 [ 75.544964][ T4346] __cancel_work_timer+0x3ac/0x520 [ 75.550769][ T4346] hci_request_cancel_all+0xcc/0x300 [ 75.557450][ T4346] hci_dev_do_close+0x4e/0x1030 [ 75.562905][ T4346] hci_rfkill_set_block+0x10a/0x190 [ 75.568965][ T4346] rfkill_set_block+0x1c6/0x420 [ 75.574334][ T4346] rfkill_fop_write+0x458/0x560 [ 75.579707][ T4346] vfs_write+0x300/0xd00 [ 75.584816][ T4346] ksys_write+0x14d/0x250 [ 75.589925][ T4346] do_syscall_64+0x4c/0xa0 [ 75.594857][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.601480][ T4346] [ 75.601480][ T4346] other info that might help us debug this: [ 75.601480][ T4346] [ 75.611889][ T4346] Chain exists of: [ 75.611889][ T4346] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 75.611889][ T4346] [ 75.627791][ T4346] Possible unsafe locking scenario: [ 75.627791][ T4346] [ 75.635694][ T4346] CPU0 CPU1 [ 75.641140][ T4346] ---- ---- [ 75.646502][ T4346] lock(rfkill_global_mutex); [ 75.651317][ T4346] lock(&data->open_mutex); [ 75.658764][ T4346] lock(rfkill_global_mutex); [ 75.666125][ T4346] lock((work_completion)(&hdev->bg_scan_update)); [ 75.672708][ T4346] [ 75.672708][ T4346] *** DEADLOCK *** [ 75.672708][ T4346] [ 75.681018][ T4346] 1 lock held by syz.0.17/4346: [ 75.685858][ T4346] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 75.697111][ T4346] [ 75.697111][ T4346] stack backtrace: [ 75.703273][ T4346] CPU: 0 PID: 4346 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.710484][ T4346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 75.720554][ T4346] Call Trace: [ 75.724026][ T4346] [ 75.726959][ T4346] dump_stack_lvl+0x168/0x230 [ 75.731666][ T4346] ? load_image+0x3b0/0x3b0 [ 75.736305][ T4346] ? show_regs_print_info+0x20/0x20 [ 75.741502][ T4346] ? print_circular_bug+0x12b/0x1a0 [ 75.746941][ T4346] check_noncircular+0x274/0x310 [ 75.752051][ T4346] ? add_chain_block+0x940/0x940 [ 75.757167][ T4346] ? lockdep_lock+0xdc/0x1e0 [ 75.761926][ T4346] ? __lock_acquire+0x12d9/0x7c60 [ 75.767380][ T4346] ? lockdep_lock+0x1e0/0x1e0 [ 75.772113][ T4346] ? mark_lock+0x94/0x320 [ 75.776613][ T4346] ? _find_first_zero_bit+0xce/0xf0 [ 75.781812][ T4346] __lock_acquire+0x2c33/0x7c60 [ 75.786775][ T4346] ? verify_lock_unused+0x140/0x140 [ 75.792069][ T4346] ? verify_lock_unused+0x140/0x140 [ 75.797328][ T4346] lock_acquire+0x197/0x3f0 [ 75.801925][ T4346] ? __flush_work+0xc1/0x1b0 [ 75.806691][ T4346] ? __lock_acquire+0x7c60/0x7c60 [ 75.812409][ T4346] ? read_lock_is_recursive+0x10/0x10 [ 75.817817][ T4346] ? start_flush_work+0x776/0x820 [ 75.823359][ T4346] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 75.829420][ T4346] ? _raw_spin_unlock+0x40/0x40 [ 75.834354][ T4346] __flush_work+0xdd/0x1b0 [ 75.839030][ T4346] ? __flush_work+0xc1/0x1b0 [ 75.843615][ T4346] ? flush_work+0x20/0x20 [ 75.848072][ T4346] ? try_to_grab_pending+0xf3/0x7e0 [ 75.853272][ T4346] ? lockdep_hardirqs_off+0x70/0x100 [ 75.858862][ T4346] ? mark_lock+0x94/0x320 [ 75.863280][ T4346] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 75.869349][ T4346] ? lock_chain_count+0x20/0x20 [ 75.874209][ T4346] ? mark_lock+0x94/0x320 [ 75.878537][ T4346] ? __cancel_work_timer+0x331/0x520 [ 75.883819][ T4346] __cancel_work_timer+0x3ac/0x520 [ 75.888940][ T4346] ? cancel_work_sync+0x20/0x20 [ 75.893879][ T4346] ? __cancel_work+0x1f4/0x2d0 [ 75.898722][ T4346] ? lockdep_hardirqs_on+0x94/0x140 [ 75.904089][ T4346] ? __cancel_work+0x26f/0x2d0 [ 75.908936][ T4346] ? cancel_work+0x20/0x20 [ 75.913349][ T4346] ? lock_chain_count+0x20/0x20 [ 75.918295][ T4346] hci_request_cancel_all+0xcc/0x300 [ 75.923841][ T4346] hci_dev_do_close+0x4e/0x1030 [ 75.928880][ T4346] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 75.935061][ T4346] ? _raw_spin_unlock+0x40/0x40 [ 75.940064][ T4346] hci_rfkill_set_block+0x10a/0x190 [ 75.945432][ T4346] ? rcu_lock_release+0x20/0x20 [ 75.950783][ T4346] rfkill_set_block+0x1c6/0x420 [ 75.955737][ T4346] rfkill_fop_write+0x458/0x560 [ 75.960671][ T4346] ? verify_lock_unused+0x140/0x140 [ 75.966156][ T4346] ? rfkill_fop_read+0x4b0/0x4b0 [ 75.971271][ T4346] ? common_file_perm+0xc0/0x1c0 [ 75.976203][ T4346] ? fsnotify_perm+0x5d/0x560 [ 75.981140][ T4346] ? security_file_permission+0x75/0xa0 [ 75.986682][ T4346] ? rfkill_fop_read+0x4b0/0x4b0 [ 75.991723][ T4346] vfs_write+0x300/0xd00 [ 75.996103][ T4346] ? file_end_write+0x250/0x250 [ 76.001125][ T4346] ? __context_tracking_exit+0x4c/0x80 [ 76.006674][ T4346] ? __lock_acquire+0x7c60/0x7c60 [ 76.011836][ T4346] ? __fdget_pos+0x1e2/0x370 [ 76.016772][ T4346] ksys_write+0x14d/0x250 [ 76.021186][ T4346] ? __ia32_sys_read+0x80/0x80 [ 76.026038][ T4346] ? lockdep_hardirqs_on+0x94/0x140 [ 76.031434][ T4346] do_syscall_64+0x4c/0xa0 [ 76.036029][ T4346] ? clear_bhb_loop+0x30/0x80 [ 76.040726][ T4346] ? clear_bhb_loop+0x30/0x80 [ 76.045414][ T4346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.051319][ T4346] RIP: 0033:0x7f3d3ecce749 [ 76.055956][ T4346] 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 [ 76.075767][ T4346] RSP: 002b:00007ffd17553068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.084375][ T4346] RAX: ffffffffffffffda RBX: 00007f3d3ef24fa0 RCX: 00007f3d3ecce749 [ 76.092352][ T4346] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 76.100756][ T4346] RBP: 00007f3d3ed52f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.108899][ T4346] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.117312][ T4346] R13: 00007f3d3ef24fa0 R14: 00007f3d3ef24fa0 R15: 0000000000000003 [ 76.125373][ T4346]