Warning: Permanently added '10.128.0.102' (ED25519) to the list of known hosts. 2025/08/17 21:15:45 ignoring optional flag "sandboxArg"="0" 2025/08/17 21:15:46 parsed 1 programs [ 38.620035][ T4188] cgroup: Unknown subsys name 'net' [ 38.722395][ T4188] cgroup: Unknown subsys name 'rlimit' [ 39.655082][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 41.614029][ T4243] chnl_net:caif_netlink_parms(): no params data found [ 41.655041][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.662431][ T4243] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.670207][ T4243] device bridge_slave_0 entered promiscuous mode [ 41.678684][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.685753][ T4243] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.693498][ T4243] device bridge_slave_1 entered promiscuous mode [ 41.712807][ T4243] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 41.723330][ T4243] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 41.745448][ T4243] team0: Port device team_slave_0 added [ 41.753470][ T4243] team0: Port device team_slave_1 added [ 41.770433][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 41.777729][ T4243] 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. [ 41.803630][ T4243] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 41.815488][ T4243] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 41.822450][ T4243] 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. [ 41.848404][ T4243] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.875389][ T4243] device hsr_slave_0 entered promiscuous mode [ 41.882016][ T4243] device hsr_slave_1 entered promiscuous mode [ 41.957960][ T4243] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 41.966399][ T4243] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 41.975511][ T4243] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 41.983485][ T4243] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 42.013274][ T4243] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.021251][ T4243] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.032927][ T4243] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.040007][ T4243] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.066850][ T4243] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.079952][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.108178][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.119509][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.154297][ T4243] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.167790][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.176379][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.183445][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.194343][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.202766][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.209801][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.225377][ T4243] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 42.235868][ T4243] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 42.249403][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.257707][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.265750][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.274474][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.282691][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.290320][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.339185][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 42.346547][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 42.356946][ T4243] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.370708][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.384206][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.392723][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.400772][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.409576][ T4243] device veth0_vlan entered promiscuous mode [ 42.418284][ T4243] device veth1_vlan entered promiscuous mode [ 42.430990][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 42.439221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 42.447659][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.457449][ T4243] device veth0_macvtap entered promiscuous mode [ 42.466000][ T4243] device veth1_macvtap entered promiscuous mode [ 42.478010][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.485402][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.494359][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 42.504396][ T4243] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 42.511940][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.532408][ T4243] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.541743][ T4243] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.550474][ T4243] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.559767][ T4243] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.631467][ T4243] syz-executor (4243) used greatest stack depth: 21088 bytes left [ 42.684952][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.694317][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.704474][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 42.713522][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.722203][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.743678][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/17 21:15:51 executed programs: 0 [ 43.193758][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 43.231452][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.239323][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.247991][ T4293] device bridge_slave_0 entered promiscuous mode [ 43.256887][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.264800][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.273346][ T4293] device bridge_slave_1 entered promiscuous mode [ 43.294070][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 43.306739][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 43.331043][ T4293] team0: Port device team_slave_0 added [ 43.338925][ T4293] team0: Port device team_slave_1 added [ 43.356042][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 43.364186][ 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. [ 43.390751][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 43.405004][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 43.412103][ 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. [ 43.438259][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 43.465622][ T4293] device hsr_slave_0 entered promiscuous mode [ 43.472876][ T4293] device hsr_slave_1 entered promiscuous mode [ 43.479453][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 43.487327][ T4293] Cannot create hsr debugfs directory [ 43.545275][ T4293] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.137537][ T4271] Bluetooth: hci0: command 0x0409 tx timeout [ 46.182014][ T4293] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 47.217586][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 47.800944][ T4293] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 47.874641][ T4293] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 47.960795][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 47.969502][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 47.979606][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 47.988326][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.020913][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.030980][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 48.038623][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.049468][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.063216][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.071698][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.080280][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.087343][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.095309][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.105776][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.114479][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.122753][ T157] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.129782][ T157] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.140201][ T157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 48.156577][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 48.166586][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 48.175987][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.184457][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.197321][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 48.205871][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.214488][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 48.222778][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.231201][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.239335][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.248349][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.309818][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 48.317798][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 48.333084][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.345111][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 48.353976][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.366783][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 48.375744][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.384967][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.392897][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.406623][ T4293] device veth0_vlan entered promiscuous mode [ 48.415432][ T4293] device veth1_vlan entered promiscuous mode [ 48.428528][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 48.436320][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 48.444820][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 48.453151][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 48.463048][ T4293] device veth0_macvtap entered promiscuous mode [ 48.479467][ T4293] device veth1_macvtap entered promiscuous mode [ 48.491532][ T4293] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 48.502126][ T4293] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 48.515223][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.522989][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 48.532339][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 48.540220][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 48.548805][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.563467][ T4293] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 48.574113][ T4293] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 48.584800][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.599202][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 48.607613][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 48.616816][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.626345][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.635205][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.644104][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.665001][ T1464] device hsr_slave_0 left promiscuous mode [ 48.671476][ T1464] device hsr_slave_1 left promiscuous mode [ 48.678471][ T1464] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 48.685862][ T1464] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 48.694291][ T1464] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 48.702411][ T1464] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 48.709887][ T1464] device bridge_slave_1 left promiscuous mode [ 48.716517][ T1464] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.727170][ T1464] device bridge_slave_0 left promiscuous mode [ 48.733307][ T1464] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.745779][ T1464] device veth1_macvtap left promiscuous mode [ 48.752187][ T1464] device veth0_macvtap left promiscuous mode [ 48.758333][ T1464] device veth1_vlan left promiscuous mode [ 48.764122][ T1464] device veth0_vlan left promiscuous mode [ 48.848832][ T1464] team0 (unregistering): Port device team_slave_1 removed [ 48.859308][ T1464] team0 (unregistering): Port device team_slave_0 removed [ 48.871153][ T1464] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 48.882930][ T1464] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 48.921851][ T1464] bond0 (unregistering): Released all slaves [ 48.982594][ T4281] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 48.999304][ T4281] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.000383][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.008432][ T4281] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 49.022895][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.038689][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 49.102409][ T4316] [ 49.104747][ T4316] ====================================================== [ 49.111745][ T4316] WARNING: possible circular locking dependency detected [ 49.118750][ T4316] 5.15.189-syzkaller #0 Not tainted [ 49.123929][ T4316] ------------------------------------------------------ [ 49.130934][ T4316] syz.0.17/4316 is trying to acquire lock: [ 49.136725][ T4316] ffff888077c3cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 49.147752][ T4316] [ 49.147752][ T4316] but task is already holding lock: [ 49.155106][ T4316] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 49.164746][ T4316] [ 49.164746][ T4316] which lock already depends on the new lock. [ 49.164746][ T4316] [ 49.175135][ T4316] [ 49.175135][ T4316] the existing dependency chain (in reverse order) is: [ 49.184134][ T4316] [ 49.184134][ T4316] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 49.192113][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 49.197914][ T4316] mutex_lock_nested+0x17/0x20 [ 49.203196][ T4316] rfkill_register+0x33/0x8a0 [ 49.208381][ T4316] hci_register_dev+0x452/0x970 [ 49.213742][ T4316] vhci_create_device+0x32c/0x5c0 [ 49.219275][ T4316] vhci_write+0x391/0x450 [ 49.224113][ T4316] vfs_write+0x712/0xd00 [ 49.228861][ T4316] ksys_write+0x14d/0x250 [ 49.233696][ T4316] do_syscall_64+0x4c/0xa0 [ 49.238617][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 49.245018][ T4316] [ 49.245018][ T4316] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 49.252904][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 49.258615][ T4316] mutex_lock_nested+0x17/0x20 [ 49.263887][ T4316] vhci_send_frame+0x88/0x100 [ 49.269079][ T4316] hci_send_frame+0x1a9/0x2e0 [ 49.274262][ T4316] hci_tx_work+0x9f9/0x1710 [ 49.279279][ T4316] process_one_work+0x863/0x1000 [ 49.284808][ T4316] worker_thread+0xaa8/0x12a0 [ 49.289990][ T4316] kthread+0x436/0x520 [ 49.294565][ T4316] ret_from_fork+0x1f/0x30 [ 49.299487][ T4316] [ 49.299487][ T4316] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 49.308677][ T4316] __flush_work+0xdd/0x1b0 [ 49.313613][ T4316] hci_dev_do_close+0x1e7/0x1030 [ 49.319062][ T4316] hci_unregister_dev+0x2d7/0x580 [ 49.324598][ T4316] vhci_release+0x73/0xc0 [ 49.329437][ T4316] __fput+0x234/0x930 [ 49.333927][ T4316] task_work_run+0x125/0x1a0 [ 49.339057][ T4316] do_exit+0x61e/0x20a0 [ 49.343720][ T4316] do_group_exit+0x12e/0x300 [ 49.348818][ T4316] get_signal+0x6ca/0x12c0 [ 49.353739][ T4316] arch_do_signal_or_restart+0xc1/0x1300 [ 49.359875][ T4316] exit_to_user_mode_loop+0x9e/0x130 [ 49.365672][ T4316] exit_to_user_mode_prepare+0xb1/0x140 [ 49.371723][ T4316] syscall_exit_to_user_mode+0x16/0x40 [ 49.377689][ T4316] do_syscall_64+0x58/0xa0 [ 49.382615][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 49.389014][ T4316] [ 49.389014][ T4316] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 49.396634][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 49.402344][ T4316] mutex_lock_nested+0x17/0x20 [ 49.407609][ T4316] bg_scan_update+0x44/0x3b0 [ 49.412713][ T4316] process_one_work+0x863/0x1000 [ 49.418158][ T4316] worker_thread+0xaa8/0x12a0 [ 49.423344][ T4316] kthread+0x436/0x520 [ 49.427921][ T4316] ret_from_fork+0x1f/0x30 [ 49.432850][ T4316] [ 49.432850][ T4316] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 49.442641][ T4316] __lock_acquire+0x2c33/0x7c60 [ 49.448007][ T4316] lock_acquire+0x197/0x3f0 [ 49.453035][ T4316] __flush_work+0xdd/0x1b0 [ 49.457962][ T4316] __cancel_work_timer+0x3ac/0x520 [ 49.463675][ T4316] hci_request_cancel_all+0xcc/0x300 [ 49.469469][ T4316] hci_dev_do_close+0x4e/0x1030 [ 49.474826][ T4316] hci_rfkill_set_block+0x10a/0x190 [ 49.480537][ T4316] rfkill_set_block+0x1c6/0x420 [ 49.485894][ T4316] rfkill_fop_write+0x458/0x560 [ 49.491255][ T4316] vfs_write+0x300/0xd00 [ 49.496007][ T4316] ksys_write+0x14d/0x250 [ 49.500841][ T4316] do_syscall_64+0x4c/0xa0 [ 49.505765][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 49.512170][ T4316] [ 49.512170][ T4316] other info that might help us debug this: [ 49.512170][ T4316] [ 49.522479][ T4316] Chain exists of: [ 49.522479][ T4316] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 49.522479][ T4316] [ 49.538184][ T4316] Possible unsafe locking scenario: [ 49.538184][ T4316] [ 49.545622][ T4316] CPU0 CPU1 [ 49.550992][ T4316] ---- ---- [ 49.556346][ T4316] lock(rfkill_global_mutex); [ 49.561124][ T4316] lock(&data->open_mutex); [ 49.568217][ T4316] lock(rfkill_global_mutex); [ 49.575664][ T4316] lock((work_completion)(&hdev->bg_scan_update)); [ 49.582361][ T4316] [ 49.582361][ T4316] *** DEADLOCK *** [ 49.582361][ T4316] [ 49.590528][ T4316] 1 lock held by syz.0.17/4316: [ 49.595363][ T4316] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 49.605442][ T4316] [ 49.605442][ T4316] stack backtrace: [ 49.611316][ T4316] CPU: 0 PID: 4316 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 49.619277][ T4316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 49.629320][ T4316] Call Trace: [ 49.632588][ T4316] [ 49.635507][ T4316] dump_stack_lvl+0x168/0x230 [ 49.640174][ T4316] ? load_image+0x3b0/0x3b0 [ 49.644665][ T4316] ? show_regs_print_info+0x20/0x20 [ 49.649855][ T4316] ? print_circular_bug+0x12b/0x1a0 [ 49.655038][ T4316] check_noncircular+0x274/0x310 [ 49.659946][ T4316] ? add_chain_block+0x940/0x940 [ 49.664851][ T4316] ? lockdep_lock+0xdc/0x1e0 [ 49.669406][ T4316] ? __lock_acquire+0x12d9/0x7c60 [ 49.674395][ T4316] ? lockdep_lock+0x1e0/0x1e0 [ 49.679035][ T4316] ? mark_lock+0x94/0x320 [ 49.683335][ T4316] __lock_acquire+0x2c33/0x7c60 [ 49.688161][ T4316] ? verify_lock_unused+0x140/0x140 [ 49.693338][ T4316] ? verify_lock_unused+0x140/0x140 [ 49.698525][ T4316] lock_acquire+0x197/0x3f0 [ 49.703003][ T4316] ? __flush_work+0xc1/0x1b0 [ 49.707565][ T4316] ? __lock_acquire+0x7c60/0x7c60 [ 49.712582][ T4316] ? read_lock_is_recursive+0x10/0x10 [ 49.717927][ T4316] ? start_flush_work+0x776/0x820 [ 49.722920][ T4316] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 49.728792][ T4316] ? _raw_spin_unlock+0x40/0x40 [ 49.733611][ T4316] __flush_work+0xdd/0x1b0 [ 49.737994][ T4316] ? __flush_work+0xc1/0x1b0 [ 49.742560][ T4316] ? flush_work+0x20/0x20 [ 49.746851][ T4316] ? try_to_grab_pending+0xf3/0x7e0 [ 49.752013][ T4316] ? lockdep_hardirqs_off+0x70/0x100 [ 49.757263][ T4316] ? mark_lock+0x94/0x320 [ 49.761577][ T4316] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 49.767520][ T4316] ? lock_chain_count+0x20/0x20 [ 49.772333][ T4316] ? mark_lock+0x94/0x320 [ 49.776626][ T4316] ? __cancel_work_timer+0x331/0x520 [ 49.781878][ T4316] __cancel_work_timer+0x3ac/0x520 [ 49.786971][ T4316] ? cancel_work_sync+0x20/0x20 [ 49.791806][ T4316] ? __cancel_work+0x1f4/0x2d0 [ 49.796553][ T4316] ? lockdep_hardirqs_on+0x94/0x140 [ 49.801739][ T4316] ? __cancel_work+0x26f/0x2d0 [ 49.806476][ T4316] ? cancel_work+0x20/0x20 [ 49.810861][ T4316] ? lock_chain_count+0x20/0x20 [ 49.815685][ T4316] hci_request_cancel_all+0xcc/0x300 [ 49.820940][ T4316] hci_dev_do_close+0x4e/0x1030 [ 49.825758][ T4316] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 49.831630][ T4316] ? _raw_spin_unlock+0x40/0x40 [ 49.836462][ T4316] hci_rfkill_set_block+0x10a/0x190 [ 49.841636][ T4316] ? rcu_lock_release+0x20/0x20 [ 49.846481][ T4316] rfkill_set_block+0x1c6/0x420 [ 49.851314][ T4316] rfkill_fop_write+0x458/0x560 [ 49.856155][ T4316] ? verify_lock_unused+0x140/0x140 [ 49.861411][ T4316] ? rfkill_fop_read+0x4b0/0x4b0 [ 49.866332][ T4316] ? common_file_perm+0x150/0x1c0 [ 49.871321][ T4316] ? fsnotify_perm+0x5d/0x560 [ 49.875964][ T4316] ? security_file_permission+0x75/0xa0 [ 49.881472][ T4316] ? rfkill_fop_read+0x4b0/0x4b0 [ 49.886378][ T4316] vfs_write+0x300/0xd00 [ 49.890595][ T4316] ? file_end_write+0x250/0x250 [ 49.895410][ T4316] ? __context_tracking_exit+0x4c/0x80 [ 49.900832][ T4316] ? __lock_acquire+0x7c60/0x7c60 [ 49.905825][ T4316] ? __fdget_pos+0x1e2/0x370 [ 49.910383][ T4316] ksys_write+0x14d/0x250 [ 49.914688][ T4316] ? __ia32_sys_read+0x80/0x80 [ 49.919422][ T4316] ? lockdep_hardirqs_on+0x94/0x140 [ 49.924610][ T4316] do_syscall_64+0x4c/0xa0 [ 49.929001][ T4316] ? clear_bhb_loop+0x30/0x80 [ 49.933648][ T4316] ? clear_bhb_loop+0x30/0x80 [ 49.938302][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 49.944163][ T4316] RIP: 0033:0x7f42e3031be9 [ 49.948547][ T4316] 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 [ 49.968118][ T4316] RSP: 002b:00007ffd6caed048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.976501][ T4316] RAX: ffffffffffffffda RBX: 00007f42e3258fa0 RCX: 00007f42e3031be9 [ 49.984439][ T4316] RDX: 0000000000000008 RSI: 0000200000000200 RDI: 0000000000000003 [ 49.992374][ T4316] RBP: 00007f42e30b4e19 R08: 0000000000000000 R09: 0000000000000000 [ 50.000309][ T4316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 50.008243][ T4316] R13: 00007f42e3258fa0 R14: 00007f42e3258fa0 R15: 0000000000000003 [ 50.016185][ T4316] [ 50.020708][ T13] Bluetooth: hci0: command 0x040f tx timeout